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author | cvs2svn <admin@example.com> | 1996-12-18 21:42:27 +0000 |
---|---|---|
committer | cvs2svn <admin@example.com> | 1996-12-18 21:42:27 +0000 |
commit | 1825e819708b917f0830bee4e9bdf0402b8f338f (patch) | |
tree | 16360e899fbd8729b6e37016227c275701bb0173 /qt/md | |
parent | 4d46a0279bb9dbe7e7399d6d2f1f54ccac01b987 (diff) | |
download | guile-pre_jimb_debug.tar.gz |
This commit was manufactured by cvs2svn to create tagpre_jimb_debug
'pre_jimb_debug'.
Diffstat (limited to 'qt/md')
45 files changed, 0 insertions, 4385 deletions
diff --git a/qt/md/.cvsignore b/qt/md/.cvsignore deleted file mode 100644 index f3c7a7c5d..000000000 --- a/qt/md/.cvsignore +++ /dev/null @@ -1 +0,0 @@ -Makefile diff --git a/qt/md/Makefile.am b/qt/md/Makefile.am deleted file mode 100644 index aae2b5904..000000000 --- a/qt/md/Makefile.am +++ /dev/null @@ -1,11 +0,0 @@ -## Process this file with automake to produce Makefile.in. - -AUTOMAKE_OPTIONS = foreign - -EXTRA_DIST = _sparc.s _sparc_b.s axp.1.Makefile axp.2.Makefile \ -axp.Makefile axp.README axp.c axp.h axp.s axp_b.s default.Makefile \ -hppa-cnx.Makefile hppa.Makefile hppa.h hppa.s hppa_b.s i386.README \ -i386.h i386.s i386_b.s ksr1.Makefile ksr1.h ksr1.s ksr1_b.s \ -m88k.Makefile m88k.c m88k.h m88k.s m88k_b.s mips-irix5.s mips.h mips.s \ -mips_b.s null.README null.c solaris.README sparc.h sparc.s sparc_b.s \ -vax.h vax.s vax_b.s diff --git a/qt/md/Makefile.in b/qt/md/Makefile.in deleted file mode 100644 index eace458d9..000000000 --- a/qt/md/Makefile.in +++ /dev/null @@ -1,154 +0,0 @@ -# Makefile.in generated automatically by automake 1.1l from Makefile.am - -# Copyright (C) 1994, 1995, 1996 Free Software Foundation, Inc. -# This Makefile.in is free software; the Free Software Foundation -# gives unlimited permission to copy, distribute and modify it. - - -SHELL = /bin/sh - -srcdir = @srcdir@ -top_srcdir = @top_srcdir@ -VPATH = @srcdir@ -prefix = @prefix@ -exec_prefix = @exec_prefix@ - -bindir = @bindir@ -sbindir = @sbindir@ -libexecdir = @libexecdir@ -datadir = @datadir@ -sysconfdir = @sysconfdir@ -sharedstatedir = @sharedstatedir@ -localstatedir = @localstatedir@ -libdir = @libdir@ -infodir = @infodir@ -mandir = @mandir@ -includedir = @includedir@ -oldincludedir = /usr/include - -pkgdatadir = $(datadir)/@PACKAGE@ -pkglibdir = $(libdir)/@PACKAGE@ -pkgincludedir = $(includedir)/@PACKAGE@ - -top_builddir = .. - -INSTALL = @INSTALL@ -INSTALL_PROGRAM = @INSTALL_PROGRAM@ -INSTALL_DATA = @INSTALL_DATA@ -INSTALL_SCRIPT = @INSTALL_SCRIPT@ -transform = @program_transform_name@ -host_alias = @host_alias@ -host_triplet = @host@ -RANLIB = @RANLIB@ -module = @module@ -qtmd_h = @qtmd_h@ -CC = @CC@ -PACKAGE = @PACKAGE@ -VERSION = @VERSION@ -INSTALL_SCRIPT = @INSTALL_SCRIPT@ -qtmds_o = @qtmds_o@ -qtmdc_o = @qtmdc_o@ -target_libs = @target_libs@ -qtmds_s = @qtmds_s@ -qtmdc_c = @qtmdc_c@ -qtmdb_s = @qtmdb_s@ - -AUTOMAKE_OPTIONS = foreign - -EXTRA_DIST = _sparc.s _sparc_b.s axp.1.Makefile axp.2.Makefile \ -axp.Makefile axp.README axp.c axp.h axp.s axp_b.s default.Makefile \ -hppa-cnx.Makefile hppa.Makefile hppa.h hppa.s hppa_b.s i386.README \ -i386.h i386.s i386_b.s ksr1.Makefile ksr1.h ksr1.s ksr1_b.s \ -m88k.Makefile m88k.c m88k.h m88k.s m88k_b.s mips-irix5.s mips.h mips.s \ -mips_b.s null.README null.c solaris.README sparc.h sparc.s sparc_b.s \ -vax.h vax.s vax_b.s -mkinstalldirs = $(SHELL) $(top_srcdir)/../mkinstalldirs -CONFIG_CLEAN_FILES = -DIST_COMMON = Makefile.am Makefile.in - - -DISTFILES = $(DIST_COMMON) $(SOURCES) $(HEADERS) \ - $(TEXINFOS) $(MANS) $(EXTRA_DIST) - -TAR = tar -default: all - -.SUFFIXES: -$(srcdir)/Makefile.in: Makefile.am $(top_srcdir)/configure.in $(ACLOCAL) - cd $(top_srcdir) && automake --foreign md/Makefile - -Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status $(BUILT_SOURCES) - cd $(top_builddir) \ - && CONFIG_FILES=$(subdir)/$@ CONFIG_HEADERS= $(SHELL) ./config.status - -tags: TAGS -TAGS: - - -distdir = $(top_builddir)/$(PACKAGE)-$(VERSION)/$(subdir) - -subdir = md -distdir: $(DISTFILES) - @for file in $(DISTFILES); do \ - d=$(srcdir); \ - test -f $(distdir)/$$file \ - || ln $$d/$$file $(distdir)/$$file 2> /dev/null \ - || cp -p $$d/$$file $(distdir)/$$file; \ - done -info: -dvi: -check: all - $(MAKE) -installcheck: -install-exec: - $(NORMAL_INSTALL) - -install-data: - $(NORMAL_INSTALL) - -install: install-exec install-data all - @: - -uninstall: - -all: Makefile - -install-strip: - $(MAKE) INSTALL_PROGRAM='$(INSTALL_PROGRAM) -s' install -installdirs: - - -mostlyclean-generic: - test -z "$(MOSTLYCLEANFILES)" || rm -f $(MOSTLYCLEANFILES) - -clean-generic: - test -z "$(CLEANFILES)" || rm -f $(CLEANFILES) - -distclean-generic: - rm -f Makefile $(DISTCLEANFILES) - rm -f config.cache config.log stamp-h - test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES) - -maintainer-clean-generic: - test -z "$(MAINTAINERCLEANFILES)" || rm -f $(MAINTAINERCLEANFILES) - test -z "$(BUILT_SOURCES)" || rm -f $(BUILT_SOURCES) -mostlyclean: mostlyclean-generic - -clean: clean-generic mostlyclean - -distclean: distclean-generic clean - rm -f config.status - -maintainer-clean: maintainer-clean-generic distclean - @echo "This command is intended for maintainers to use;" - @echo "it deletes files that may require special tools to rebuild." - -.PHONY: default tags distdir info dvi installcheck install-exec \ -install-data install uninstall all installdirs mostlyclean-generic \ -distclean-generic clean-generic maintainer-clean-generic clean \ -mostlyclean distclean maintainer-clean - - -# Tell versions [3.59,3.63) of GNU make to not export all variables. -# Otherwise a system limit (for SysV at least) may be exceeded. -.NOEXPORT: diff --git a/qt/md/_sparc.s b/qt/md/_sparc.s deleted file mode 100644 index 1d8adc77e..000000000 --- a/qt/md/_sparc.s +++ /dev/null @@ -1,142 +0,0 @@ -/* sparc.s -- assembly support for the `qt' thread building kit. */ - -/* - * QuickThreads -- Threads-building toolkit. - * Copyright (c) 1993 by David Keppel - * - * Permission to use, copy, modify and distribute this software and - * its documentation for any purpose and without fee is hereby - * granted, provided that the above copyright notice and this notice - * appear in all copies. This software is provided as a - * proof-of-concept and for demonstration purposes; there is no - * representation about the suitability of this software for any - * purpose. - */ - -/* #include <machine/trap.h> */ - - .text - .align 4 - .global _qt_blocki - .global _qt_block - .global _qt_abort - .global _qt_start - .global _qt_vstart - -/* Register assignment: -// %o0: incoming `helper' function to call after cswap -// also used as outgoing sp of old thread (qt_t *) -// %o1, %o2: -// parameters to `helper' function called after cswap -// %o3: sp of new thread -// %o5: tmp used to save old thread sp, while using %o0 -// to call `helper' f() after cswap. -// -// -// Aborting a thread is easy if there are no cached register window -// frames: just switch to the new stack and away we go. If there are -// cached register window frames they must all be written back to the -// old stack before we move to the new stack. If we fail to do the -// writeback then the old stack memory can be written with register -// window contents e.g., after the stack memory has been freed and -// reused. -// -// If you don't believe this, try setting the frame pointer to zero -// once we're on the new stack. This will not affect correctnes -// otherwise because the frame pointer will eventually get reloaded w/ -// the new thread's frame pointer. But it will be zero briefly before -// the reload. You will eventually (100,000 cswaps later on a small -// SPARC machine that I tried) get an illegal instruction trap from -// the kernel trying to flush a cached window to location 0x0. -// -// Solution: flush windows before switching stacks, which invalidates -// all the other register windows. We could do the trap -// conditionally: if we're in the lowest frame of a thread, the fp is -// zero already so we know there's nothing cached. But we expect most -// aborts will be done from a first function that does a `save', so we -// will rarely save anything and always pay the cost of testing to see -// if we should flush. -// -// All floating-point registers are caller-save, so this routine -// doesn't need to do anything to save and restore them. -// -// `qt_block' and `qt_blocki' return the same value as the value -// returned by the helper function. We get this ``for free'' -// since we don't touch the return value register between the -// return from the helper function and return from qt_block{,i}. -*/ - -_qt_block: -_qt_blocki: - sub %sp, 8, %sp /* Allocate save area for return pc. */ - st %o7, [%sp+64] /* Save return pc. */ -_qt_abort: - ta 0x03 /* Save locals and ins. */ - mov %sp, %o5 /* Remember old sp w/o chng ins/locals. */ - sub %o3, 64, %sp /* Allocate kwsa, switch stacks. */ - call %o0, 0 /* Call `helper' routine. */ - mov %o5, %o0 /* Pass old thread to qt_after_t() */ - /* .. along w/ args in %o1 & %o2. */ - - /* Restore callee-save regs. The kwsa - // is on this stack, so offset all - // loads by sizeof(kwsa), 64 bytes. - */ - ldd [%sp+ 0+64], %l0 - ldd [%sp+ 8+64], %l2 - ldd [%sp+16+64], %l4 - ldd [%sp+24+64], %l6 - ldd [%sp+32+64], %i0 - ldd [%sp+40+64], %i2 - ldd [%sp+48+64], %i4 - ldd [%sp+56+64], %i6 - ld [%sp+64+64], %o7 /* Restore return pc. */ - - retl /* Return to address in %o7. */ - add %sp, 72, %sp /* Deallocate kwsa, ret pc area. */ - - -/* The function calling conventions say there has to be a 1-word area -// in the caller's stack to hold a pointer to space for aggregate -// return values. It also says there should be a 6-word area to hold -// %o0..%o5 if the callee wants to save them (why? I don't know...) -// Round up to 8 words to maintain alignment. -// -// Parameter values were stored in callee-save regs and are moved to -// the parameter registers. -*/ -_qt_start: - mov %i1, %o0 /* `pu': Set up args to `only'. */ - mov %i2, %o1 /* `pt'. */ - mov %i4, %o2 /* `userf'. */ - call %i5, 0 /* Call client function. */ - sub %sp, 32, %sp /* Allocate 6-word callee space. */ - - call _qt_error, 0 /* `only' erroniously returned. */ - nop - - -/* Same comments as `_qt_start' about allocating rounded-up 7-word -// save areas. */ - -_qt_vstart: - sub %sp, 32, %sp /* Allocate 7-word callee space. */ - call %i5, 0 /* call `startup'. */ - mov %i2, %o0 /* .. with argument `pt'. */ - - add %sp, 32, %sp /* Use 7-word space in varargs. */ - ld [%sp+ 4+64], %o0 /* Load arg0 ... */ - ld [%sp+ 8+64], %o1 - ld [%sp+12+64], %o2 - ld [%sp+16+64], %o3 - ld [%sp+20+64], %o4 - call %i4, 0 /* Call `userf'. */ - ld [%sp+24+64], %o5 - - /* Use 6-word space in varargs. */ - mov %o0, %o1 /* Pass return value from userf */ - call %i3, 0 /* .. when call `cleanup. */ - mov %i2, %o0 /* .. along with argument `pt'. */ - - call _qt_error, 0 /* `cleanup' erroniously returned. */ - nop diff --git a/qt/md/_sparc_b.s b/qt/md/_sparc_b.s deleted file mode 100644 index cd26672d7..000000000 --- a/qt/md/_sparc_b.s +++ /dev/null @@ -1,106 +0,0 @@ -/* - * QuickThreads -- Threads-building toolkit. - * Copyright (c) 1993 by David Keppel - * - * Permission to use, copy, modify and distribute this software and - * its documentation for any purpose and without fee is hereby - * granted, provided that the above copyright notice and this notice - * appear in all copies. This software is provided as a - * proof-of-concept and for demonstration purposes; there is no - * representation about the suitability of this software for any - * purpose. - */ - - .globl _b_call_reg - .globl _b_call_imm - .globl _b_add - .globl _b_load - -_b_null: - retl - nop - -_b_call_reg: - sethi %hi(_b_null),%o4 - or %o4,%lo(_b_null),%o4 - add %o7,%g0, %o3 -L0: - call %o4 - nop - call %o4 - nop - call %o4 - nop - call %o4 - nop - call %o4 - nop - - subcc %o0,1,%o0 - bg L0 - nop - add %o3,%g0, %o7 - retl - nop - -_b_call_imm: - sethi %hi(_b_null),%o4 - or %o4,%lo(_b_null),%o4 - add %o7,%g0, %o3 -L1: - call _b_null - call _b_null - call _b_null - call _b_null - call _b_null - - subcc %o0,1,%o0 - bg L0 - nop - add %o3,%g0, %o7 - retl - nop - - -_b_add: - add %o0,%g0,%o1 - add %o0,%g0,%o2 - add %o0,%g0,%o3 - add %o0,%g0,%o4 -L2: - sub %o0,5,%o0 - sub %o1,5,%o1 - sub %o2,5,%o2 - sub %o3,5,%o3 - sub %o4,5,%o4 - - subcc %o0,5,%o0 - sub %o1,5,%o1 - sub %o2,5,%o2 - sub %o3,5,%o3 - sub %o4,5,%o4 - - bg L2 - nop - retl - nop - - -_b_load: - ld [%sp+ 0], %g0 -L3: - ld [%sp+ 4],%g0 - ld [%sp+ 8],%g0 - ld [%sp+12],%g0 - ld [%sp+16],%g0 - ld [%sp+20],%g0 - ld [%sp+24],%g0 - ld [%sp+28],%g0 - ld [%sp+32],%g0 - ld [%sp+36],%g0 - - subcc %o0,10,%o0 - bg L3 - ld [%sp+ 0],%g0 - retl - nop diff --git a/qt/md/axp.1.Makefile b/qt/md/axp.1.Makefile deleted file mode 100644 index 86ccd8f42..000000000 --- a/qt/md/axp.1.Makefile +++ /dev/null @@ -1,5 +0,0 @@ - -# -# Compiling for the DEC AXP (alpha) with GNU CC or version 1.x of OSF. -# -CC = cc -std1 -D__AXP__ -D__OSF1__ diff --git a/qt/md/axp.2.Makefile b/qt/md/axp.2.Makefile deleted file mode 100644 index 268636fc9..000000000 --- a/qt/md/axp.2.Makefile +++ /dev/null @@ -1,5 +0,0 @@ - -# -# Compiling for the DEC AXP (alpha) with GNU CC or version 2.x of OSF. -# -CC = cc -std1 -D__AXP__ -D__OSF2__ diff --git a/qt/md/axp.Makefile b/qt/md/axp.Makefile deleted file mode 100644 index 4e6d74da4..000000000 --- a/qt/md/axp.Makefile +++ /dev/null @@ -1,5 +0,0 @@ - -# -# GNU CC -# -CC = gcc -D__AXP__ diff --git a/qt/md/axp.README b/qt/md/axp.README deleted file mode 100644 index b6a705c07..000000000 --- a/qt/md/axp.README +++ /dev/null @@ -1,10 +0,0 @@ -The handling of varargs is platform-dependent. Assar Westerlund -stared at the problem for a while and deduces the following table: - -vers / compiler cc gcc ----------------------------------------------------------------------- -1.3 a0, offset __base, __offset -2.0 _a0, _offset __base, __offset - -The current code should handle both cc and gcc versions, provided -you configure for the correct compiler. diff --git a/qt/md/axp.c b/qt/md/axp.c deleted file mode 100644 index 26c15c0ea..000000000 --- a/qt/md/axp.c +++ /dev/null @@ -1,133 +0,0 @@ -/* - * QuickThreads -- Threads-building toolkit. - * Copyright (c) 1993 by David Keppel - * - * Permission to use, copy, modify and distribute this software and - * its documentation for any purpose and without fee is hereby - * granted, provided that the above copyright notice and this notice - * appear in all copies. This software is provided as a - * proof-of-concept and for demonstration purposes; there is no - * representation about the suitability of this software for any - * purpose. - */ - -#include <stdarg.h> -#include "qt.h" - - -/* Varargs is harder on the AXP. Parameters are saved on the stack as - something like (stack grows down to low memory; low at bottom of - picture): - - | : - | arg6 - +--- - | iarg5 - | : - | iarg3 <-- va_list._a0 + va_list._offset - | : - | iarg0 <-- va_list._a0 - +--- - | farg5 - | : - | farg0 - +--- - - When some of the arguments have known type, there is no need to - save all of them in the struct. So, for example, if the routine is - called - - zork (int a0, float a1, int a2, ...) - { - va_list ap; - va_start (ap, a2); - qt_vargs (... &ap ...); - } - - then offset is set to 3 * 8 (8 === sizeof machine word) = 24. - - What this means for us is that the user's routine needs to be - called with an arg list where some of the words in the `any type' - parameter list have to be split and moved up in to the int/fp - region. - - Ways in which this can fail: - - The user might not know the size of the pushed arguments anyway. - - Structures have funny promotion rules. - - Probably lots of other things. - - All in all, we never promised varargs would work reliably. */ - - - -#define QT_VADJ(sp) (((char *)sp) - QT_VSTKBASE) - -#define QT_VARGS_MD0(sp, vabytes) \ - ((qt_t *)(((char *)(sp)) - 6*2*8 - QT_STKROUNDUP(vabytes))) - -extern void qt_vstart(void); -#define QT_VARGS_MD1(sp) (QT_SPUT (sp, QT_R26, qt_vstart)) - - -/* Different machines use different implementations for varargs. - Unfortunately, the code below ``looks in to'' the varargs - structure, `va_list', and thus depends on the conventions. - The following #defines try to deal with it but don't catch - everything. */ - -#ifdef __GNUC__ -#define _a0 __base -#define _offset __offset -#else -#ifdef __OSF1__ -#define _a0 a0 -#define _offset offset -#endif -#endif /* def __GNUC__ */ - - - struct qt_t * -qt_vargs (struct qt_t *qsp, int nbytes, struct va_list *vargs, - void *pt, qt_function_t *startup, - qt_function_t *vuserf, qt_function_t *cleanup) -{ - va_list ap; - int i; - int max; /* Maximum *words* of args to copy. */ - int tmove; /* *Words* of args moved typed->typed. */ - qt_word_t *sp; - - ap = *(va_list *)vargs; - qsp = QT_VARGS_MD0 (qsp, nbytes); - sp = (qt_word_t *)qsp; - - tmove = 6 - ap._offset/sizeof(qt_word_t); - - /* Copy from one typed area to the other. */ - for (i=0; i<tmove; ++i) { - /* Integer args: */ - sp[i+6] = ((qt_word_t *)(ap._a0 + ap._offset))[i]; - /* Fp args: */ - sp[i] = ((qt_word_t *)(ap._a0 + ap._offset))[i-6]; - } - - max = nbytes/sizeof(qt_word_t); - - /* Copy from the untyped area to the typed area. Split each arg. - in to integer and floating-point save areas. */ - for (; i<6 && i<max; ++i) { - sp[i] = sp[i+6] = ((qt_word_t *)(ap._a0 + ap._offset))[i]; - } - - /* Copy from the untyped area to the other untyped area. */ - for (; i<max; ++i) { - sp[i+6] = ((qt_word_t *)(ap._a0 + ap._offset))[i]; - } - - QT_VARGS_MD1 (QT_VADJ(sp)); - QT_SPUT (QT_VADJ(sp), QT_VARGT_INDEX, pt); - QT_SPUT (QT_VADJ(sp), QT_VSTARTUP_INDEX, startup); - QT_SPUT (QT_VADJ(sp), QT_VUSERF_INDEX, vuserf); - QT_SPUT (QT_VADJ(sp), QT_VCLEANUP_INDEX, cleanup); - return ((qt_t *)QT_VADJ(sp)); -} diff --git a/qt/md/axp.h b/qt/md/axp.h deleted file mode 100644 index ff951a0d3..000000000 --- a/qt/md/axp.h +++ /dev/null @@ -1,160 +0,0 @@ -/* - * QuickThreads -- Threads-building toolkit. - * Copyright (c) 1993 by David Keppel - * - * Permission to use, copy, modify and distribute this software and - * its documentation for any purpose and without fee is hereby - * granted, provided that the above copyright notice and this notice - * appear in all copies. This software is provided as a - * proof-of-concept and for demonstration purposes; there is no - * representation about the suitability of this software for any - * purpose. - */ - -#ifndef QT_AXP_H -#define QT_AXP_H - -#define QT_GROW_DOWN - -typedef unsigned long qt_word_t; - - -/* Stack layout on the Alpha: - - Integer: - - Caller-save: r0..r8, r22..r25, r27..r29 - argument/caller-save: r16..r21 - callee-save: r9..r15 - return pc *callee-save*: r26 - stack pointer: r30 - zero: r31 - - Floating-point: - - Caller-save: f0..f1, f10..f15 - argument/caller-save: f16..f21, f22..f30 - callee-save: f2..f9 - zero: f31 - - Non-varargs: - - +--- - | padding - | f9 - | f8 - | f7 - | f6 - | f5 - | f4 - | f3 - | f2 - | r26 - +--- - | padding - | r29 - | r15 - | r14 - | r13 - | r12 on startup === `only' - | r11 on startup === `userf' - | r10 on startup === `qt' - | r9 on startup === `qu' - | r26 on startup === qt_start <--- qt.sp - +--- - - Conventions for varargs startup: - - | : - | arg6 - | iarg5 - | : - | iarg0 - | farg5 - | : - | farg0 - +--- - | padding - | r29 - | r15 - | r14 - | r13 - | r12 on startup === `startup' - | r11 on startup === `vuserf' - | r10 on startup === `cleanup' - | r9 on startup === `qt' - | r26 on startup === qt_vstart <--- qt.sp - +--- - - Note: this is a pretty cheap/sleazy way to get things going, - but ``there must be a better way.'' For instance, some varargs - parameters could be loaded in to integer registers, or the return - address could be stored on top of the stack. */ - - -/* Stack must be 16-byte aligned. */ -#define QT_STKALIGN (16) - -/* How much space is allocated to hold all the crud for - initialization: 7 registers times 8 bytes/register. */ - -#define QT_STKBASE (10 * 8) -#define QT_VSTKBASE QT_STKBASE - - -/* Offsets of various registers. */ -#define QT_R26 0 -#define QT_R9 1 -#define QT_R10 2 -#define QT_R11 3 -#define QT_R12 4 - - -/* When a never-before-run thread is restored, the return pc points - to a fragment of code that starts the thread running. For - non-vargs functions, it just calls the client's `only' function. - For varargs functions, it calls the startup, user, and cleanup - functions. - - The varargs startup routine always reads 12 8-byte arguments from - the stack. If fewer argumets were pushed, the startup routine - would read off the top of the stack. To prevent errors we always - allocate enough space. When there are fewer args, the preallocated - words are simply wasted. */ - -extern void qt_start(void); -#define QT_ARGS_MD(sp) (QT_SPUT (sp, QT_R26, qt_start)) - - -/* The AXP uses a struct for `va_list', so pass a pointer to the - struct. This may break some uses of `QT_VARGS', but then we never - claimed it was totally portable. */ - -typedef void (qt_function_t)(void); - -struct qt_t; -struct va_list; -extern struct qt_t *qt_vargs (struct qt_t *sp, int nbytes, - struct va_list *vargs, void *pt, - qt_function_t *startup, - qt_function_t *vuserf, - qt_function_t *cleanup); - -#define QT_VARGS(sp, nbytes, vargs, pt, startup, vuserf, cleanup) \ - (qt_vargs (sp, nbytes, (struct va_list *)(&(vargs)), pt, \ - (qt_function_t *) startup, (qt_function_t *)vuserf, \ - (qt_function_t *)cleanup)); - - -/* The *index* (positive offset) of where to put each value. */ -#define QT_ONLY_INDEX (QT_R12) -#define QT_USER_INDEX (QT_R11) -#define QT_ARGT_INDEX (QT_R10) -#define QT_ARGU_INDEX (QT_R9) - -#define QT_VCLEANUP_INDEX (QT_R10) -#define QT_VUSERF_INDEX (QT_R11) -#define QT_VSTARTUP_INDEX (QT_R12) -#define QT_VARGT_INDEX (QT_R9) - -#endif /* ndef QT_AXP_H */ diff --git a/qt/md/axp.s b/qt/md/axp.s deleted file mode 100644 index a84aab2cc..000000000 --- a/qt/md/axp.s +++ /dev/null @@ -1,160 +0,0 @@ -/* - * QuickThreads -- Threads-building toolkit. - * Copyright (c) 1993 by David Keppel - * - * Permission to use, copy, modify and distribute this software and - * its documentation for any purpose and without fee is hereby - * granted, provided that the above copyright notice and this notice - * appear in all copies. This software is provided as a - * proof-of-concept and for demonstration purposes; there is no - * representation about the suitability of this software for any - * purpose. - */ - -/* axp.s -- assembly support. */ - - .text - .align 4 - .file 2 "axp.s" - - .globl qt_block - .globl qt_blocki - .globl qt_abort - .globl qt_start - .globl qt_vstart - - /* - ** $16: ptr to function to call once curr is suspended - ** and control is on r19's stack. - ** $17: 1'th arg to (*$16)(...). - ** $18: 2'th arg to (*$16)(...). - ** $19: sp of thread to resume. - ** - ** The helper routine returns a value that is passed on as the - ** return value from the blocking routine. Since we don't - ** touch r0 between the helper's return and the end of - ** function, we get this behavior for free. - */ - - .ent qt_blocki -qt_blocki: - subq $30,80, $30 /* Allocate save area. */ - stq $26, 0($30) /* Save registers. */ - stq $9, 8($30) - stq $10,16($30) - stq $11,24($30) - stq $12,32($30) - stq $13,40($30) - stq $14,48($30) - stq $15,56($30) - stq $29,64($30) - .end qt_blocki - .ent qt_abort -qt_abort: - addq $16,$31, $27 /* Put argument function in PV. */ - addq $30,$31, $16 /* Save stack ptr in outgoing arg. */ - addq $19,$31, $30 /* Set new stack pointer. */ - jsr $26,($27),0 /* Call helper function. */ - - ldq $26, 0($30) /* Restore registers. */ - ldq $9, 8($30) - ldq $10,16($30) - ldq $11,24($30) - ldq $12,32($30) - ldq $13,40($30) - ldq $14,48($30) - ldq $15,56($30) - ldq $29,64($30) - - addq $30,80, $30 /* Deallocate save area. */ - ret $31,($26),1 /* Return, predict===RET. */ - .end qt_abort - - - /* - ** Non-varargs thread startup. - */ - .ent qt_start -qt_start: - addq $9,$31, $16 /* Load up `qu'. */ - addq $10,$31, $17 /* ... user function's `pt'. */ - addq $11,$31, $18 /* ... user function's `userf'. */ - addq $12,$31, $27 /* ... set procedure value to `only'. */ - jsr $26,($27),0 /* Call `only'. */ - - jsr $26,qt_error /* `only' erroniously returned. */ - .end qt_start - - - .ent qt_vstart: -qt_vstart: - /* Call startup function. */ - addq $9,$31, $16 /* Arg0 to `startup'. */ - addq $12,$31, $27 /* Set procedure value. */ - jsr $26,($27),0 /* Call `startup'. */ - - /* Call user function. */ - ldt $f16, 0($30) /* Load fp arg regs. */ - ldt $f17, 8($30) - ldt $f18,16($30) - ldt $f19,24($30) - ldt $f20,32($30) - ldt $f21,40($30) - ldq $16,48($30) /* And integer arg regs. */ - ldq $17,56($30) - ldq $18,64($30) - ldq $19,72($30) - ldq $20,80($30) - ldq $21,88($30) - addq $30,96 $30 /* Pop 6*2*8 saved arg regs. */ - addq $11,$31, $27 /* Set procedure value. */ - jsr $26,($27),0 /* Call `vuserf'. */ - - /* Call cleanup. */ - addq $9,$31, $16 /* Arg0 to `cleanup'. */ - addq $0,$31, $17 /* Users's return value is arg1. */ - addq $10,$31, $27 /* Set procedure value. */ - jsr $26,($27),0 /* Call `cleanup'. */ - - jsr $26,qt_error /* Cleanup erroniously returned. */ - .end qt_start - - - /* - ** Save calle-save floating-point regs $f2..$f9. - ** Also save return pc from whomever called us. - ** - ** Return value from `qt_block' is the same as the return from - ** `qt_blocki'. We get that for free since we don't touch $0 - ** between the return from `qt_blocki' and the return from - ** `qt_block'. - */ - .ent qt_block -qt_block: - subq $30,80, $30 /* Allocate a save space. */ - stq $26, 0($30) /* Save registers. */ - stt $f2, 8($30) - stt $f3,16($30) - stt $f4,24($30) - stt $f5,32($30) - stt $f6,40($30) - stt $f7,48($30) - stt $f8,56($30) - stt $f9,64($30) - - jsr $26,qt_blocki /* Call helper. */ - /* .. who will also restore $gp. */ - - ldq $26, 0($30) /* restore registers. */ - ldt $f2, 8($30) - ldt $f3,16($30) - ldt $f4,24($30) - ldt $f5,32($30) - ldt $f6,40($30) - ldt $f7,48($30) - ldt $f8,56($30) - ldt $f9,64($30) - - addq $30,80, $30 /* Deallcate save space. */ - ret $31,($26),1 /* Return, predict===RET. */ - .end qt_block diff --git a/qt/md/axp_b.s b/qt/md/axp_b.s deleted file mode 100644 index 60be726ff..000000000 --- a/qt/md/axp_b.s +++ /dev/null @@ -1,111 +0,0 @@ -/* - * QuickThreads -- Threads-building toolkit. - * Copyright (c) 1993 by David Keppel - * - * Permission to use, copy, modify and distribute this software and - * its documentation for any purpose and without fee is hereby - * granted, provided that the above copyright notice and this notice - * appear in all copies. This software is provided as a - * proof-of-concept and for demonstration purposes; there is no - * representation about the suitability of this software for any - * purpose. - */ - - .text - .globl b_call_reg - .globl b_call_imm - .globl b_add - .globl b_load - - .ent b_null -b_null: - ret $31,($18),1 - .end b_null - - .ent b_call_reg -b_call_reg: - lda $27,b_null -$L0: - jsr $18,($27) - jsr $18,($27) - jsr $18,($27) - jsr $18,($27) - jsr $18,($27) - - jsr $18,($27) - jsr $18,($27) - jsr $18,($27) - jsr $18,($27) - jsr $18,($27) - - subq $16,1,$16 - bgt $16,$L0 - - ret $31,($26),1 - .end - - - .ent b_call_imm -b_call_imm: -$L1: - jsr $18,b_null - jsr $18,b_null - jsr $18,b_null - jsr $18,b_null - jsr $18,b_null - - jsr $18,b_null - jsr $18,b_null - jsr $18,b_null - jsr $18,b_null - jsr $18,b_null - - subq $16,1,$16 - bgt $16,$L1 - - ret $31,($26),1 - .end - - - .ent b_add -b_add: -$L2: - addq $31,$31,$31 - addq $31,$31,$31 - addq $31,$31,$31 - addq $31,$31,$31 - addq $31,$31,$31 - - addq $31,$31,$31 - addq $31,$31,$31 - addq $31,$31,$31 - addq $31,$31,$31 - addq $31,$31,$31 - - subq $16,1,$16 - bgt $16,$L2 - - ret $31,($26),1 - .end - - - .ent b_load -b_load: -$L3: - ldq $31,0($30) - ldq $31,8($30) - ldq $31,16($30) - ldq $31,24($30) - ldq $31,32($30) - - ldq $31,0($30) - ldq $31,8($30) - ldq $31,16($30) - ldq $31,24($30) - ldq $31,32($30) - - subq $16,1,$16 - bgt $16,$L3 - - ret $31,($26),1 - .end diff --git a/qt/md/default.Makefile b/qt/md/default.Makefile deleted file mode 100644 index e240ca270..000000000 --- a/qt/md/default.Makefile +++ /dev/null @@ -1,6 +0,0 @@ - -# -# `Normal' configuration. -# -CC = gcc -ansi -Wall -pedantic - diff --git a/qt/md/hppa-cnx.Makefile b/qt/md/hppa-cnx.Makefile deleted file mode 100644 index bff257d9f..000000000 --- a/qt/md/hppa-cnx.Makefile +++ /dev/null @@ -1,9 +0,0 @@ -# This file (cnx_spp.Makefile) is part of the port of QuickThreads for -# PA-RISC 1.1 architecture on a Convex SPP. This file is a machine dependent -# makefile for QuickThreads. It was written in 1994 by Uwe Reder -# (`uereder@cip.informatik.uni-erlangen.de') for the Operating Systems -# Department (IMMD4) at the University of Erlangen/Nuernberg Germany. - -# `Normal' configuration. - -CC = /usr/convex/bin/cc diff --git a/qt/md/hppa.Makefile b/qt/md/hppa.Makefile deleted file mode 100644 index a15e28c99..000000000 --- a/qt/md/hppa.Makefile +++ /dev/null @@ -1,9 +0,0 @@ -# This file (pa-risc.Makefile) is part of the port of QuickThreads for -# PA-RISC 1.1 architecture. This file is a machine dependent makefile -# for QuickThreads. It was written in 1994 by Uwe Reder -# (`uereder@cip.informatik.uni-erlangen.de') for the Operating Systems -# Department (IMMD4) at the University of Erlangen/Nuernberg Germany. - -# `Normal' configuration. - -CC = cc -Aa diff --git a/qt/md/hppa.h b/qt/md/hppa.h deleted file mode 100644 index 0df98de88..000000000 --- a/qt/md/hppa.h +++ /dev/null @@ -1,194 +0,0 @@ -/* - * QuickThreads -- Threads-building toolkit. - * Copyright (c) 1993 by David Keppel - * - * Permission to use, copy, modify and distribute this software and - * its documentation for any purpose and without fee is hereby - * granted, provided that the above copyright notice and this notice - * appear in all copies. This software is provided as a - * proof-of-concept and for demonstration purposes; there is no - * representation about the suitability of this software for any - * purpose. - */ - -/* - * This file (pa-risc.h) is part of the port of QuickThreads for the - * PA-RISC 1.1 architecture. This file is a machine dependent header - * file. It was written in 1994 by Uwe Reder - * (`uereder@cip.informatik.uni-erlangen.de') for the Operating Systems - * Department (IMMD4) at the University of Erlangen/Nuernberg Germany. - */ - - -#ifndef QT_PA_RISC_H -#define QT_PA_RISC_H - -#include <qt.h> - -/* size of an integer-register (32 bit) */ -typedef unsigned long qt_word_t; - -/* PA-RISC's stack grows up */ -#define QT_GROW_UP - -/* Stack layout on PA-RISC according to PA-RISC Procedure Calling Conventions: - - Callee-save registers are: gr3-gr18, fr12-fr21. - Also save gr2, return pointer. - - +--- - | fr12 Each floating register is a double word (8 bytes). - | fr13 Floating registers are only saved if `qt_block' is - | fr14 called, in which case it saves the floating-point - | fr15 registers then calls `qt_blocki' to save the integer - | fr16 registers. - | fr17 - | fr18 - | fr19 - | fr20 - | fr21 - | <arg word 3> fixed arguments (must be allocated; may remain unused) - | <arg word 2> - | <arg word 1> - | <arg word 0> - | <LPT> frame marker - | <LPT'> - | <RP'> - | <Current RP> - | <Static Link> - | <Clean Up> - | <RP''> - | <Previous SP> - +--- - | gr3 word each (4 bytes) - | gr4 - | gr5 - | gr6 - | gr7 - | gr8 - | gr9 - | gr10 - | gr11 - | gr12 - | gr13 - | gr14 - | gr15 - | gr16 - | gr17 - | gr18 - | <16 bytes filled in (sp has to be 64-bytes aligned)> - | <arg word 3> fixed arguments (must be allocated; may remain unused) - | <arg word 2> - | <arg word 1> - | <arg word 0> - | <LPT> frame marker - | <LPT'> - | <RP'> - | <Current RP> - | <Static Link> - | <Clean Up> - | <RP''> - | <Previous SP> - +--- <--- sp -*/ - -/* When a never-before-run thread is restored, the return pc points - to a fragment of code that starts the thread running. For - non-vargs functions, it just calls the client's `only' function. - For varargs functions, it calls the startup, user, and cleanup - functions. */ - -/* Note: Procedue Labels on PA-RISC - - <--2--><-------28---------><1-><1-> - ----------------------------------- - | SID | Adress Part | L | X | - ----------------------------------- - - On HP-UX the L field is used to flag wheather the procedure - label (plabel) is a pointer to an LT entry or to the entry point - of the procedure (PA-RISC Procedure Calling Conventions Reference - Manual, 5.3.2 Procedure Labels and Dynamic Calls). */ - -#define QT_PA_RISC_READ_PLABEL(plabel) \ - ( (((int)plabel) & 2) ? \ - ( (*((int *)(((int)plabel) & 0xfffffffc)))) : ((int)plabel) ) - -/* Stack must be 64 bytes aligned. */ -#define QT_STKALIGN (64) - -/* Internal helper for putting stuff on stack (negative index!). */ -#define QT_SPUT(top, at, val) \ - (((qt_word_t *)(top))[-(at)] = (qt_word_t)(val)) - -/* Offsets of various registers which are modified on the stack. - rp (return-pointer) has to be stored in the frame-marker-area - of the "older" stack-segment. */ - -#define QT_crp (12+4+16+5) -#define QT_15 (12+4+4) -#define QT_16 (12+4+3) -#define QT_17 (12+4+2) -#define QT_18 (12+4+1) - - -/** This stuff is for NON-VARARGS. **/ - -/* Stack looks like this (2 stack frames): - - <--- 64-bytes aligned --><------- 64-bytes aligned ------------> - | || | - <--16--><------48-------><----16*4-----><--16-><------48-------> - || | || | | || - ||filler|arg|frame-marker||register-save|filler|arg|frame-marker|| - ------------------------------------------------------------------ - */ - -#define QT_STKBASE (16+48+(16*sizeof(qt_word_t))+16+48) - -/* The index, relative to sp, of where to put each value. */ -#define QT_ONLY_INDEX (QT_15) -#define QT_USER_INDEX (QT_16) -#define QT_ARGT_INDEX (QT_17) -#define QT_ARGU_INDEX (QT_18) - -extern void qt_start(void); -#define QT_ARGS_MD(sp) \ - (QT_SPUT (sp, QT_crp, QT_PA_RISC_READ_PLABEL(qt_start))) - - -/** This is for VARARGS. **/ - -#define QT_VARGS_DEFAULT - -/* Stack looks like this (2 stack frames): - - <------ 64-bytes aligned -------><--------- 64-bytes aligned ----------> - | || | - <---?--><--?---><16><----32-----><----16*4-----><-16--><16><----32-----> - || | | | || | | | || - ||filler|varargs|arg|frame-marker||register-save|filler|arg|frame-marker|| - -------------------------------------------------------------------------- - */ - -/* Sp is moved to the end of the first stack frame. */ -#define QT_VARGS_MD0(sp, vasize) \ - ((qt_t *)(((char *)sp) + QT_STKROUNDUP(vasize + 4*4 + 32))) - -/* To reach the arguments from the end of the first stack frame use 32 - as a negative adjustment. */ -#define QT_VARGS_ADJUST(sp) ((qt_t *)(((char *)sp) - 32)) - -/* Offset to reach the end of the second stack frame. */ -#define QT_VSTKBASE ((16*sizeof(qt_word_t)) + 16 + 4*4 + 32) - -extern void qt_vstart(void); -#define QT_VARGS_MD1(sp) \ - (QT_SPUT (sp, QT_crp, QT_PA_RISC_READ_PLABEL(qt_vstart))) - -#define QT_VARGT_INDEX (QT_15) -#define QT_VSTARTUP_INDEX (QT_16) -#define QT_VUSERF_INDEX (QT_17) -#define QT_VCLEANUP_INDEX (QT_18) - -#endif /* ndef QT_PA_RISC_H */ diff --git a/qt/md/hppa.s b/qt/md/hppa.s deleted file mode 100644 index 84d8e875b..000000000 --- a/qt/md/hppa.s +++ /dev/null @@ -1,237 +0,0 @@ -; pa-risc.s -- assembly support. - -; QuickThreads -- Threads-building toolkit. -; Copyright (c) 1993 by David Keppel -; -; Permission to use, copy, modify and distribute this software and -; its documentation for any purpose and without fee is hereby -; granted, provided that the above copyright notice and this notice -; appear in all copies. This software is provided as a -; proof-of-concept and for demonstration purposes; there is no -; representation about the suitability of this software for any -; purpose. - -; This file (pa-risc.s) is part of the port of QuickThreads for -; PA-RISC 1.1 architecture. This file implements context switches -; and thread startup. It was written in 1994 by Uwe Reder -; (`uereder@cip.informatik.uni-erlangen.de') for the Operating -; Systems Department (IMMD4) at the University of Erlangen/Nuernberg -; Germany. - - -; Callee saves general registers gr3..gr18, -; floating-point registers fr12..fr21. - - .CODE - - .IMPORT $$dyncall, MILLICODE - .IMPORT qt_error, CODE - - .EXPORT qt_blocki, ENTRY - .EXPORT qt_block, ENTRY - .EXPORT qt_abort, ENTRY - .EXPORT qt_start, ENTRY - .EXPORT qt_vstart, ENTRY - - -; arg0: ptr to function (helper) to call once curr is suspended -; and control is on arg3's stack. -; arg1: 1'th arg to *arg0. -; arg2: 2'th arg to *arg0. -; arg3: sp of new thread. - -qt_blocki - .PROC - .CALLINFO CALLER, FRAME=0, SAVE_RP, ENTRY_GR=18 - .ENTRY - - stw %rp,-20(%sp) ; save rp to old frame-marker - - stwm %r3,128(%sp) ; save callee-saves general registers - stw %r4,-124(%sp) - stw %r5,-120(%sp) - stw %r6,-116(%sp) - stw %r7,-112(%sp) - stw %r8,-108(%sp) - stw %r9,-104(%sp) - stw %r10,-100(%sp) - stw %r11,-96(%sp) - stw %r12,-92(%sp) - stw %r13,-88(%sp) - stw %r14,-84(%sp) - stw %r15,-80(%sp) - stw %r16,-76(%sp) - stw %r17,-72(%sp) - stw %r18,-68(%sp) - -qt_abort - copy %arg0,%r22 ; helper to be called by $$dyncall - copy %sp,%arg0 ; pass current sp as arg0 to helper - copy %arg3,%sp ; set new sp - - .CALL - bl $$dyncall,%mrp ; call helper - copy %mrp,%rp - - ldw -68(%sp),%r18 ; restore general registers - ldw -72(%sp),%r17 - ldw -76(%sp),%r16 - ldw -80(%sp),%r15 - ldw -84(%sp),%r14 - ldw -88(%sp),%r13 - ldw -92(%sp),%r12 - ldw -96(%sp),%r11 - ldw -100(%sp),%r10 - ldw -104(%sp),%r9 - ldw -108(%sp),%r8 - ldw -112(%sp),%r7 - ldw -116(%sp),%r6 - ldw -120(%sp),%r5 - ldw -124(%sp),%r4 - - ldw -148(%sp),%rp ; restore return-pointer - - bv %r0(%rp) ; return to caller - ldwm -128(%sp),%r3 - - .EXIT - .PROCEND - - -qt_block - .PROC - .CALLINFO CALLER, FRAME=0, SAVE_RP, ENTRY_FR=21 - .ENTRY - - stw %rp,-20(%sp) ; save rp to old frame-marker - - fstds,ma %fr12,8(%sp) ; save callee-saves float registers - fstds,ma %fr13,8(%sp) - fstds,ma %fr14,8(%sp) - fstds,ma %fr15,8(%sp) - fstds,ma %fr16,8(%sp) - fstds,ma %fr17,8(%sp) - fstds,ma %fr18,8(%sp) - fstds,ma %fr19,8(%sp) - fstds,ma %fr20,8(%sp) - fstds,ma %fr21,8(%sp) - - .CALL - bl qt_blocki,%rp - ldo 48(%sp),%sp - - ldo -48(%sp),%sp - - fldds,mb -8(%sp),%fr21 ; restore callee-saves float registers - fldds,mb -8(%sp),%fr20 - fldds,mb -8(%sp),%fr19 - fldds,mb -8(%sp),%fr18 - fldds,mb -8(%sp),%fr17 - fldds,mb -8(%sp),%fr16 - fldds,mb -8(%sp),%fr15 - fldds,mb -8(%sp),%fr14 - fldds,mb -8(%sp),%fr13 - - ldw -28(%sp),%rp ; restore return-pointer - - bv %r0(%rp) ; return to caller. - fldds,mb -8(%sp),%fr12 - - .EXIT - .PROCEND - - -qt_start - .PROC - .CALLINFO CALLER, FRAME=0 - .ENTRY - - copy %r18,%arg0 ; set user arg `pu'. - copy %r17,%arg1 ; ... user function pt. - copy %r16,%arg2 ; ... user function userf. - ; %r22 is a caller-saves register - copy %r15,%r22 ; function to be called by $$dyncall - - .CALL ; in=%r22 - bl $$dyncall,%mrp ; call `only'. - copy %mrp,%rp - - bl,n qt_error,%r0 ; `only' erroniously returned. - - .EXIT - .PROCEND - - -; Varargs -; -; First, call `startup' with the `pt' argument. -; -; Next, call the user's function with all arguments. -; We don't know whether arguments are integers, 32-bit floating-points or -; even 64-bit floating-points, so we reload all the registers, possibly -; with garbage arguments. The thread creator provided non-garbage for -; the arguments that the callee actually uses, so the callee never gets -; garbage. -; -; -48 -44 -40 -36 -32 -; | arg3 | arg2 | arg1 | arg0 | -; ----------------------------- -; integers: arg3 arg2 arg1 arg0 -; 32-bit fps: farg3 farg2 farg1 farg0 -; 64-bit fps: <---farg3--> <---farg1--> -; -; Finally, call `cleanup' with the `pt' argument and with the return value -; from the user's function. It is an error for `cleanup' to return. - -qt_vstart - .PROC - .CALLINFO CALLER, FRAME=0 - .ENTRY - - ; Because the startup function may damage the fixed arguments - ; on the stack (PA-RISC Procedure Calling Conventions Reference - ; Manual, 2.4 Fixed Arguments Area), we allocate a seperate - ; stack frame for it. - ldo 64(%sp),%sp - - ; call: void startup(void *pt) - - copy %r15,%arg0 ; `pt' is arg0 to `startup'. - copy %r16,%r22 - .CALL - bl $$dyncall,%mrp ; Call `startup'. - copy %mrp,%rp - - ldo -64(%sp),%sp - - ; call: void *qt_vuserf_t(...) - - ldw -36(%sp),%arg0 ; Load args to integer registers. - ldw -40(%sp),%arg1 - ldw -44(%sp),%arg2 - ldw -48(%sp),%arg3 - ; Index of fld[w|d]s only ranges from -16 to 15, so we - ; take r22 to be our new base register. - ldo -32(%sp),%r22 - fldws -4(%r22),%farg0 ; Load args to floating-point registers. - fldds -8(%r22),%farg1 - fldws -12(%r22),%farg2 - fldds -16(%r22),%farg3 - copy %r17,%r22 - .CALL - bl $$dyncall,%mrp ; Call `userf'. - copy %mrp,%rp - - ; call: void cleanup(void *pt, void *vuserf_return) - - copy %r15,%arg0 ; `pt' is arg0 to `cleanup'. - copy %ret0,%arg1 ; Return-value is arg1 to `cleanup'. - copy %r18,%r22 - .CALL - bl $$dyncall,%mrp ; Call `cleanup'. - copy %mrp,%rp - - bl,n qt_error,%r0 - - .EXIT - .PROCEND diff --git a/qt/md/hppa_b.s b/qt/md/hppa_b.s deleted file mode 100644 index 1b1e8264e..000000000 --- a/qt/md/hppa_b.s +++ /dev/null @@ -1,203 +0,0 @@ -; QuickThreads -- Threads-building toolkit. -; Copyright (c) 1993 by David Keppel - -; Permission to use, copy, modify and distribute this software and -; its documentation for any purpose and without fee is hereby -; granted, provided that the above copyright notice and this notice -; appear in all copies. This software is provided as a -; proof-of-concept and for demonstration purposes; there is no -; representation about the suitability of this software for any -; purpose. - -; This file (pa-risc_b.s) is part of the port of QuickThreads for -; PA-RISC 1.1 architecture. It contains assembly-level support for -; raw processor performance measurement. It was written in 1994 by -; Uwe Reder (`uereder@cip.informatik.uni-erlangen.de') -; for the Operating Systems Department (IMMD4) at the -; University of Erlangen/Nuernberg Germany. - - -; Note that the number of instructions in the measurement-loops, differ -; from implementation to implementation. I took eight instructions in a loop -; for every test (execute eight instructions and loop to the start). - - .CODE - - .IMPORT $global$,DATA - .IMPORT $$dyncall,MILLICODE - .EXPORT b_call_reg - .EXPORT b_call_imm - .EXPORT b_add - .EXPORT b_load - -; Just do nothing, only return to caller. This procedure is called by -; `b_call_reg' and `b_call_imm'. - -b_null - .PROC - .CALLINFO NO_CALLS, FRAME=0 - .ENTRY - - bv,n %r0(%rp) ; just return - - .EXIT - .PROCEND - -; Call the procedure `b_null' with function pointer in a register. - -b_call_reg - .PROC - .CALLINFO CALLER, FRAME=0 - .ENTRY - - stwm %r3,64(%sp) ; store r3 (may be used by caller) - stw %rp,-20(%sp) ; save return-pointer to frame-marker - - addil LR'to_call-$global$,%r27 - ldw RR'to_call-$global$(%r1),%r3 - -_loop0 - copy %r3,%r22 ; copy the procedure label to r22, ... - .CALL ; ...this is the input to $$dyncall - bl $$dyncall,%mrp ; call $$dyncall (millicode function) - copy %mrp,%rp ; remember the return-pointer - - copy %r3,%r22 - .CALL - bl $$dyncall,%mrp - copy %mrp,%rp - - copy %r3,%r22 - .CALL - bl $$dyncall,%mrp - copy %mrp,%rp - - copy %r3,%r22 - .CALL - bl $$dyncall,%mrp - copy %mrp,%rp - - copy %r3,%r22 - .CALL - bl $$dyncall,%mrp - copy %mrp,%rp - - copy %r3,%r22 - .CALL - bl $$dyncall,%mrp - copy %mrp,%rp - - copy %r3,%r22 - .CALL - bl $$dyncall,%mrp - copy %mrp,%rp - - copy %r3,%r22 - .CALL - bl $$dyncall,%mrp - copy %mrp,%rp - - addibf,<= -8,%arg0,_loop0 ; decrement counter by 8 and loop - nop - - ldw -20(%sp),%rp ; restore return-pointer - bv %r0(%rp) ; return to caller - ldwm -64(%sp),%r3 ; resore r3 and remove stack frame - - .EXIT - .PROCEND - -; Call the procedure `b_null' immediate. - -b_call_imm - .PROC - .CALLINFO CALLER, FRAME=0, SAVE_RP - .ENTRY - - ldo 64(%sp),%sp ; caller needs a stack-frame - stw %rp,-20(%sp) ; save return-pointer to frame-marker - -_loop1 - bl b_null,%rp ; call `b_null' immediate (8 times) - nop - bl b_null,%rp - nop - bl b_null,%rp - nop - bl b_null,%rp - nop - bl b_null,%rp - nop - bl b_null,%rp - nop - bl b_null,%rp - nop - bl b_null,%rp - nop - - addibf,<= -8,%arg0,_loop1 ; decrement counter by 8 and loop - nop - - ldw -20(%sp),%rp ; restore return-pointer - bv %r0(%rp) ; return to caller - ldo -64(%sp),%sp ; remove stack-frame - - .EXIT - .PROCEND - -; Copy register-to-register. -; On PA-RISC this is implemented with an `or'. -; The `or' is hidden by a pseudo-operation called `copy'. - -b_add - .PROC - .CALLINFO NO_CALLS, FRAME=0 - .ENTRY - -_loop2 - copy %r19,%r20 ; copy register-to-register - copy %r20,%r21 ; use caller-saves registers - copy %r21,%r22 - copy %r22,%r21 - copy %r21,%r20 - copy %r20,%r19 - copy %r19,%r20 - copy %r20,%r21 - - addibf,<= -8,%arg0,_loop2 ; decrement counter by 8 and loop - nop - - bv,n %r0(%rp) - - .EXIT - .PROCEND - -; Load memory to a register. - -b_load - .PROC - .CALLINFO NO_CALLS, FRAME=0 - .ENTRY - -_loop3 - ldw -4(%sp),%r22 ; load data from frame-marker - ldw -8(%sp),%r22 ; use a caller-saves register - ldw -12(%sp),%r22 - ldw -16(%sp),%r22 - ldw -20(%sp),%r22 - ldw -24(%sp),%r22 - ldw -28(%sp),%r22 - ldw -32(%sp),%r22 - - addibf,<= -8,%arg0,_loop3 ; decrement counter by 8 and loop - nop - - bv,n %r0(%rp) - - .EXIT - .PROCEND - - - .ALIGN 8 -to_call - .WORD b_null diff --git a/qt/md/i386.README b/qt/md/i386.README deleted file mode 100644 index 8ffb92198..000000000 --- a/qt/md/i386.README +++ /dev/null @@ -1,7 +0,0 @@ -Note that some machines want labels to have leading underscores, -while others (e.g. System V) do not. Thus, several labels appear -duplicated except for the leading underscore, e.g. - - _qt_cswap: - qt_cswap: - diff --git a/qt/md/i386.h b/qt/md/i386.h deleted file mode 100644 index 158fe2703..000000000 --- a/qt/md/i386.h +++ /dev/null @@ -1,120 +0,0 @@ -/* - * QuickThreads -- Threads-building toolkit. - * Copyright (c) 1993 by David Keppel - * - * Permission to use, copy, modify and distribute this software and - * its documentation for any purpose and without fee is hereby - * granted, provided that the above copyright notice and this notice - * appear in all copies. This software is provided as a - * proof-of-concept and for demonstration purposes; there is no - * representation about the suitability of this software for any - * purpose. - */ - -#ifndef QT_386_H -#define QT_386_H - -typedef unsigned long qt_word_t; - -/* Thread's initial stack layout on the i386: - - non-varargs: - - +--- - | arg[2] === `userf' on startup - | arg[1] === `pt' on startup - | arg[0] === `pu' on startup - +--- - | ret pc === qt_error - +--- - | ret pc === `only' on startup - +--- - | %ebp - | %esi - | %edi - | %ebx <--- qt_t.sp - +--- - - When a non-varargs thread is started, it ``returns'' directly to - the client's `only' function. - - varargs: - - +--- - | arg[n-1] - | .. - | arg[0] - +--- - | ret pc === `qt_vstart' - +--- - | %ebp === `startup' - | %esi === `cleanup' - | %edi === `pt' - | %ebx === `vuserf' <--- qt_t.sp - +--- - - When a varargs thread is started, it ``returns'' to the `qt_vstart' - startup code. The startup code calls the appropriate functions. */ - - -/* What to do to start a varargs thread running. */ -extern void qt_vstart (void); - - -/* Hold 4 saved regs plus two return pcs (qt_error, qt_start) plus - three args. */ -#define QT_STKBASE (9 * 4) - -/* Hold 4 saved regs plus one return pc (qt_vstart). */ -#define QT_VSTKBASE (5 * 4) - - -/* Stack must be 4-byte aligned. */ -#define QT_STKALIGN (4) - - -/* Where to place various arguments. */ -#define QT_ONLY_INDEX (QT_PC) -#define QT_USER_INDEX (QT_ARG2) -#define QT_ARGT_INDEX (QT_ARG1) -#define QT_ARGU_INDEX (QT_ARG0) - -#define QT_VSTARTUP_INDEX (QT_EBP) -#define QT_VUSERF_INDEX (QT_EBX) -#define QT_VCLEANUP_INDEX (QT_ESI) -#define QT_VARGT_INDEX (QT_EDI) - - -#define QT_EBX 0 -#define QT_EDI 1 -#define QT_ESI 2 -#define QT_EBP 3 -#define QT_PC 4 -/* The following are defined only for non-varargs. */ -#define QT_RPC 5 -#define QT_ARG0 6 -#define QT_ARG1 7 -#define QT_ARG2 8 - - -/* Stack grows down. The top of the stack is the first thing to - pop off (preincrement, postdecrement). */ -#define QT_GROW_DOWN - -extern void qt_error (void); - -/* Push on the error return address. */ -#define QT_ARGS_MD(sto) \ - (QT_SPUT (sto, QT_RPC, qt_error)) - - -/* When varargs are pushed, allocate space for all the args. */ -#define QT_VARGS_MD0(sto, nbytes) \ - ((qt_t *)(((char *)(sto)) - QT_STKROUNDUP(nbytes))) - -#define QT_VARGS_MD1(sto) \ - (QT_SPUT (sto, QT_PC, qt_vstart)) - -#define QT_VARGS_DEFAULT - -#endif /* QT_386_H */ diff --git a/qt/md/i386.s b/qt/md/i386.s deleted file mode 100644 index ed2c533d1..000000000 --- a/qt/md/i386.s +++ /dev/null @@ -1,108 +0,0 @@ -/* i386.s -- assembly support. */ - -/* -// QuickThreads -- Threads-building toolkit. -// Copyright (c) 1993 by David Keppel -// -// Permission to use, copy, modify and distribute this software and -// its documentation for any purpose and without fee is hereby -// granted, provided that the above copyright notice and this notice -// appear in all copies. This software is provided as a -// proof-of-concept and for demonstration purposes; there is no -// representation about the suitability of this software for any -// purpose. */ - -/* NOTE: double-labeled `_name' and `name' for System V compatability. */ -/* NOTE: Comment lines start with '/*' and '//' ONLY. Sorry! */ - -/* Callee-save: %esi, %edi, %ebx, %ebp -// Caller-save: %eax, %ecx -// Can't tell: %edx (seems to work w/o saving it.) -// -// Assignment: -// -// See ``i386.h'' for the somewhat unconventional stack layout. */ - - - .text - .align 2 - - .globl _qt_abort - .globl qt_abort - .globl _qt_block - .globl qt_block - .globl _qt_blocki - .globl qt_blocki - -/* These all have the type signature -// -// void *blocking (helper, arg0, arg1, new) -// -// On procedure entry, the helper is at 4(sp), args at 8(sp) and -// 12(sp) and the new thread's sp at 16(sp). It *appears* that the -// calling convention for the 8X86 requires the caller to save all -// floating-point registers, this makes our life easy. */ - -/* Halt the currently-running thread. Save it's callee-save regs on -// to the stack, 32 bytes. Switch to the new stack (next == 16+32(sp)) -// and call the user function (f == 4+32(sp) with arguments: old sp -// arg1 (8+32(sp)) and arg2 (12+32(sp)). When the user function is -// done, restore the new thread's state and return. -// -// `qt_abort' is (currently) an alias for `qt_block' because most of -// the work is shared. We could save the insns up to `qt_common' by -// replicating, but w/o replicating we need an inital subtract (to -// offset the stack as if it had been a qt_block) and then a jump -// to qt_common. For the cost of a jump, we might as well just do -// all the work. -// -// The helper function (4(sp)) can return a void* that is returned -// by the call to `qt_blockk{,i}'. Since we don't touch %eax in -// between, we get that ``for free''. */ - -_qt_abort: -qt_abort: -_qt_block: -qt_block: -_qt_blocki: -qt_blocki: - pushl %ebp /* Save callee-save, sp-=4. */ - pushl %esi /* Save callee-save, sp-=4. */ - pushl %edi /* Save callee-save, sp-=4. */ - pushl %ebx /* Save callee-save, sp-=4. */ - movl %esp, %eax /* Remember old stack pointer. */ - -qt_common: - movl 32(%esp), %esp /* Move to new thread. */ - pushl 28(%eax) /* Push arg 2. */ - pushl 24(%eax) /* Push arg 1. */ - pushl %eax /* Push arg 0. */ - movl 20(%eax), %ebx /* Get function to call. */ - call *%ebx /* Call f. */ - addl $12, %esp /* Pop args. */ - - popl %ebx /* Restore callee-save, sp+=4. */ - popl %edi /* Restore callee-save, sp+=4. */ - popl %esi /* Restore callee-save, sp+=4. */ - popl %ebp /* Restore callee-save, sp+=4. */ - ret /* Resume the stopped function. */ - hlt - - -/* Start a varargs thread. */ - - .globl _qt_vstart - .globl qt_vstart -_qt_vstart: -qt_vstart: - pushl %edi /* Push `pt' arg to `startup'. */ - call *%ebp /* Call `startup'. */ - popl %eax /* Clean up the stack. */ - - call *%ebx /* Call the user's function. */ - - pushl %eax /* Push return from user's. */ - pushl %edi /* Push `pt' arg to `cleanup'. */ - call *%esi /* Call `cleanup'. */ - - hlt /* `cleanup' never returns. */ diff --git a/qt/md/i386_b.s b/qt/md/i386_b.s deleted file mode 100644 index 32129a5d1..000000000 --- a/qt/md/i386_b.s +++ /dev/null @@ -1,30 +0,0 @@ -/* -// QuickThreads -- Threads-building toolkit. -// Copyright (c) 1993 by David Keppel -// -// Permission to use, copy, modify and distribute this software and -// its documentation for any purpose and without fee is hereby -// granted, provided that the above copyright notice and this notice -// appear in all copies. This software is provided as a -// proof-of-concept and for demonstration purposes; there is no -// representation about the suitability of this software for any -// purpose. */ - - .globl _b_call_reg - .globl b_call_reg - .globl _b_call_imm - .globl b_call_imm - .globl _b_add - .globl b_add - .globl _b_load - .globl b_load - -_b_call_reg: -b_call_reg: -_b_call_imm: -b_call_imm: -_b_add: -b_add: -_b_load: -b_load: - hlt diff --git a/qt/md/ksr1.Makefile b/qt/md/ksr1.Makefile deleted file mode 100644 index aa195839a..000000000 --- a/qt/md/ksr1.Makefile +++ /dev/null @@ -1,6 +0,0 @@ - -# -# KSR1 configuration. -# -CC = cc -ansi - diff --git a/qt/md/ksr1.h b/qt/md/ksr1.h deleted file mode 100644 index 83537a3c2..000000000 --- a/qt/md/ksr1.h +++ /dev/null @@ -1,164 +0,0 @@ -/* - * QuickThreads -- Threads-building toolkit. - * Copyright (c) 1993 by David Keppel - * - * Permission to use, copy, modify and distribute this software and - * its documentation for any purpose and without fee is hereby - * granted, provided that the above copyright notice and this notice - * appear in all copies. This software is provided as a - * proof-of-concept and for demonstration purposes; there is no - * representation about the suitability of this software for any - * purpose. - */ - -#ifndef QT_KSR1_H -#define QT_KSR1_H - -/* - Stack layout: - - Registers are saved in strictly low to high order, FPU regs first - (only if qt_block is called), CEU regs second, IPU regs next, with no - padding between the groups. - - Callee-save: f16..f63; c15..c30; i12..i30. - Args passed in i2..i5. - - Note: c31 is a private data pointer. It is not changed on thread - swaps with the assumption that it represents per-processor rather - than per-thread state. - - Note: i31 is an instruction count register that is updated by the - context switch routines. Like c31, it is not changed on context - switches. - - This is what we want on startup: - - - +------ <-- BOS: Bottom of stack (grows down) - | 80 (128 - 48) bytes of padding to a 128-byte boundary - +--- - | only - | userf - | t - | u - | qt_start$TXT - | (empty) <-- qt.sp - +------ <-- (BOS - 128) - - This is why we want this on startup: - - A thread begins running when the restore procedure switches thread stacks - and pops a return address off of the top of the new stack (see below - for the reason why we explicitly store qt_start$TXT). The - block procedure pushes two jump addresses on a thread's stack before - it switches stacks. The first is the return address for the block - procedure, and the second is a restore address. The return address - is used to jump back to the thread that has been switched to; the - restore address is a jump within the block code to restore the registers. - Normally, this is just a jump to the next address. However, on thread - startup, this is a jump to qt_start$TXT. (The block procedure stores - the restore address at an offset of 8 bytes from the top of the stack, - which is also the offset at which qt_start$TXT is stored on the stacks - of new threads. Hence, when the block procedure switches to a new - thread stack, it will initially jump to qt_start$TXT; thereafter, - it jumps to the restore code.) - - qt_start$TXT, after it has read the initial data on the new thread's - stack and placed it in registers, pops the initial stack frame - and gives the thread the entire stack to use for execution. - - The KSR runtime system has an unusual treatment of pointers to - functions. From C, taking the `name' of a function yields a - pointer to a _constant block_ and *not* the address of the - function. The zero'th entry in the constant block is a pointer to - the function. - - We have to be careful: the restore procedure expects a return - address on the top of the stack (pointed to by qt.sp). This is not - a problem when restoring a thread that has run before, since the - block routine would have stored the return address on top of the - stack. However, when ``faking up'' a thread start (bootstrapping a - thread stack frame), the top of the stack needs to contain a - pointer to the code that will start the thread running. - - The pointer to the startup code is *not* `qt_start'. It is the - word *pointed to* by `qt_start'. Thus, we dereference `qt_start', - see QT_ARGS_MD below. - - On varargs startup (still unimplemented): - - | padding to 128 byte boundary - | varargs <-- padded to a 128-byte-boundary - +--- - | caller's frame, 16 bytes - | 80 bytes of padding (frame padded to a 128-byte boundary) - +--- - | cleanup - | vuserf - | startup - | t - +--- - | qt_start <-- qt.sp - +--- - - Of a suspended thread: - - +--- - | caller's frame, 16 bytes - | fpu registers 47 regs * 8 bytes/reg 376 bytes - | ceu registers 16 regs * 8 bytes/reg 128 bytes - | ipu registers 19 regs * 8 bytes/reg 152 bytes - | : - | 80 bytes of padding - | : - | qt_restore <-- qt.sp - +--- - - */ - - -#define QT_STKALIGN 128 -#define QT_GROW_DOWN -typedef unsigned long qt_word_t; - -#define QT_STKBASE QT_STKALIGN -#define QT_VSTKBASE QT_STKBASE - -extern void qt_start(void); -/* - * See the discussion above for what indexing into a procedure ptr - * does for us (it's lovely, though, isn't it?). - * - * This assumes that the address of a procedure's code is the - * first word in a procedure's constant block. That's how the manual - * says it will be arranged. - */ -#define QT_ARGS_MD(sp) (QT_SPUT (sp, 1, ((qt_word_t *)qt_start)[0])) - -/* - * The *index* (positive offset) of where to put each value. - * See the picture of the stack above that explains the offsets. - */ -#define QT_ONLY_INDEX (5) -#define QT_USER_INDEX (4) -#define QT_ARGT_INDEX (3) -#define QT_ARGU_INDEX (2) - -#define QT_VARGS_DEFAULT -#define QT_VARGS(sp, nb, vargs, pt, startup, vuserf, cleanup) \ - (qt_vargs (sp, nbytes, &vargs, pt, startup, vuserf, cleanup)) - - -#define QT_VARGS_MD0(sp, vabytes) \ - ((qt_t *)(((char *)(sp)) - 4*8 - QT_STKROUNDUP(vabytes))) - -extern void qt_vstart(void); -#define QT_VARGS_MD1(sp) (QT_SPUT (sp, 0, ((qt_word_t *)qt_vstart)[0])) - -#define QT_VCLEANUP_INDEX (4) -#define QT_VUSERF_INDEX (3) -#define QT_VSTARTUP_INDEX (2) -#define QT_VARGT_INDEX (1) - -#endif /* def QT_KSR1_H */ diff --git a/qt/md/ksr1.s b/qt/md/ksr1.s deleted file mode 100644 index d4d51a0a6..000000000 --- a/qt/md/ksr1.s +++ /dev/null @@ -1,424 +0,0 @@ -/* - * QuickThreads -- Threads-building toolkit. - * Copyright (c) 1993 by David Keppel - * - * Permission to use, copy, modify and distribute this software and - * its documentation for any purpose and without fee is hereby - * granted, provided that the above copyright notice and this notice - * appear in all copies. This software is provided as a - * proof-of-concept and for demonstration purposes; there is no - * representation about the suitability of this software for any - * purpose. - */ - - .file "ksr1.s" - .def .debug; .endef - - .align 128 - .globl qt_blocki - .globl qt_blocki$TXT - .globl qt_block - .globl qt_block$TXT - .globl qt_start$TXT - .globl qt_start - .globl qt_abort$TXT - .globl qt_abort - .globl qt_vstart - .globl qt_vstart$TXT - -# -# KSR convention: on procedure calls, load both the procedure address -# and a pointer to a constant block. The address of function `f' is -# `f$TXT', and the constant block address is `f'. The constant block -# has several reserved values: -# -# 8 bytes fpu register save mask -# 4 bytes ipu register save mask -# 4 bytes ceu register save mask -# f: f$TXT -# ... whatever you want ... (not quite...read on) -# -# Note, by the way, that a pointer to a function is passed as a -# pointer to the constant area, and the constant area has the text -# address. -# - -# -# Procedures that do not return structures prefix their code with -# -# proc$TXT: -# finop; cxnop -# finop; cxnop -# <proc code> -# -# Calls to those procedures branch to a 16 byte offset (4 instrs) in -# to the procedure to skip those instructions. -# -# Procedures that return structures use a different code prefix: -# -# proc$TXT: -# finop; beq.qt %rc, %rc, 24 # return value entry -# finop; cxnop -# finop; movi8 0, %rc # no return value entry -# <proc code> -# -# Calls that want the returned structure branch directly to the -# procedure address. Callers that don't want (or aren't expecting) a -# return value branche 16 bytes in to the procedure, which will zero -# %rc, telling the called procedure not to return a structure. -# - -# -# On entry: -# %i2 -- control block of helper function to run -# (dereference to get helper) -# %i3 -- a1 -# %i4 -- a2 -# %i5 -- sp of new to run -# - - .data - .half 0x0, 0x0, 0x7ffff000, 0x7fff8000 -qt_blocki: -qt_abort: - .word qt_blocki$TXT - .word qt_restore$TXT - - .text -qt_abort$TXT: -qt_blocki$TXT: - finop ; cxnop # entry prefix - finop ; cxnop # entry prefix - add8.ntr 75,%i31,%i31 ; movi8 512,%c5 # ICR; stk adjust - finop ; ssub8.ntr 0,%sp,%c5,%sp - finop ; st8 %fp,504(%sp) # Save caller's fp - finop ; st8 %cp,496(%sp) # Save caller's cp - finop ; ld8 8(%c10),%c5 # ld qt_restore$TXT - finop ; st8 %c14,0(%sp) # Save special ret addr - finop ; mov8_8 %c10, %cp # Our cp - finop ; sadd8.ntr 0,%sp,%c5,%fp # Our frame ptr - finop ; st8 %c5,8(%sp) # st qt_restore$TXT -# -# CEU registers %c15-%c24, %c26-%c30 (%c14 we restore later) -# - finop ; st8 %c15,456(%sp) - finop ; st8 %c16,448(%sp) - finop ; st8 %c17,440(%sp) - finop ; st8 %c18,432(%sp) - finop ; st8 %c19,424(%sp) - finop ; st8 %c20,416(%sp) - finop ; st8 %c21,408(%sp) - finop ; st8 %c22,400(%sp) - finop ; st8 %c23,392(%sp) - finop ; st8 %c24,384(%sp) -# -# %c25 is the Enclosing Frame Pointer (EFP) -- since C doesn't -# use nested procedures, we ignore it (leaving a gap, though) -# - finop ; st8 %c26,368(%sp) - finop ; st8 %c27,360(%sp) - finop ; st8 %c28,352(%sp) - finop ; st8 %c29,344(%sp) - finop ; st8 %c30,336(%sp) -# -# IPU registers %i12-%i30 -# - finop ; st8 %i12,328(%sp) - finop ; st8 %i13,320(%sp) - finop ; st8 %i14,312(%sp) - finop ; st8 %i15,304(%sp) -# (gap to get alignment for st64) -# -- Doesn't work on version 1.1.3 of the OS -# finop ; st64 %i16,256(%sp) - - finop ; st8 %i16,256(%sp) - finop ; st8 %i17,248(%sp) - finop ; st8 %i18,240(%sp) - finop ; st8 %i19,232(%sp) - finop ; st8 %i20,224(%sp) - finop ; st8 %i21,216(%sp) - finop ; st8 %i22,208(%sp) - finop ; st8 %i23,200(%sp) - finop ; st8 %i24,192(%sp) - finop ; st8 %i25,184(%sp) - finop ; st8 %i26,176(%sp) - finop ; st8 %i27,168(%sp) - finop ; st8 %i28,160(%sp) - finop ; st8 %i29,152(%sp) - finop ; st8 %i30,144(%sp) -# -# FPU already saved, or saving not necessary -# - -# -# Switch to the stack passed in as fourth argument to the block -# routine (%i5) and call the helper routine passed in as the first -# argument (%i2). Note that the address of the helper's constant -# block is passed in, so we must derefence it to get the helper's text -# address. -# - finop ; movb8_8 %i2,%c10 # helper's ConstBlock - finop ; cxnop # Delay slot, fill w/ - finop ; cxnop # .. 2 st8 from above - finop ; ld8 0(%c10),%c4 # load addr of helper - finop ; movb8_8 %sp, %i2 # 1st arg to helper - # is this stack; other - # args remain in regs - finop ; movb8_8 %i5,%sp # switch stacks - finop ; jsr %c14,16(%c4) # call helper - movi8 3, %i0 ; movi8 0,%c8 # nargs brain dmg - finop ; cxnop - finop ; cxnop -# -# Here is where behavior differs for threads being restored and threads -# being started. Blocked threads have a pointer to qt_restore$TXT on -# the top of their stacks; manufactured stacks have a pointer to qt_start$TXT -# on the top of their stacks. With this setup, starting threads -# skip the (unecessary) restore operations. -# -# We jump to an offset of 16 to either (1) skip past the two noop pairs -# at the start of qt_start$TXT, or (2) skip past the two noop pairs -# after qt_restore$TXT. -# - finop ; ld8 8(%sp),%c4 - finop ; cxnop - finop ; cxnop - finop ; jmp 16(%c4) -qt_restore$TXT: - finop ; cxnop - finop ; cxnop -# -# Point of Restore: -# -# The helper funtion will return here. Any result it has placed in -# a return register (most likely %i0) will not get overwritten below -# and will consequently be the return value of the blocking routine. -# - -# -# CEU registers %c15-%c24, %c26-%c30 (%c14 we restore later) -# - finop ; ld8 456(%sp),%c15 - finop ; ld8 448(%sp),%c16 - finop ; ld8 440(%sp),%c17 - finop ; ld8 432(%sp),%c18 - finop ; ld8 424(%sp),%c19 - finop ; ld8 416(%sp),%c20 - finop ; ld8 408(%sp),%c21 - finop ; ld8 400(%sp),%c22 - finop ; ld8 392(%sp),%c23 - finop ; ld8 384(%sp),%c24 -# -# %c25 is the Enclosing Frame Pointer (EFP) -- since C doesn't -# use nested procedures, we ignore it (leaving a gap, though) -# - finop ; ld8 368(%sp),%c26 - finop ; ld8 360(%sp),%c27 - finop ; ld8 352(%sp),%c28 - finop ; ld8 344(%sp),%c29 - finop ; ld8 336(%sp),%c30 -# -# IPU registers %i12-%i30 -# - finop ; ld8 328(%sp),%i12 - finop ; ld8 320(%sp),%i13 - finop ; ld8 312(%sp),%i14 - finop ; ld8 304(%sp),%i15 -# (gap to get alignment for ld64) -# -- Doesn't work on version 1.1.3 of the OS -# finop ; ld64 256(%sp),%i16 - - finop ; ld8 256(%sp),%i16 - finop ; ld8 248(%sp),%i17 - finop ; ld8 240(%sp),%i18 - finop ; ld8 232(%sp),%i19 - finop ; ld8 224(%sp),%i20 - finop ; ld8 216(%sp),%i21 - finop ; ld8 208(%sp),%i22 - finop ; ld8 200(%sp),%i23 - finop ; ld8 192(%sp),%i24 - finop ; ld8 184(%sp),%i25 - finop ; ld8 176(%sp),%i26 - finop ; ld8 168(%sp),%i27 - finop ; ld8 160(%sp),%i28 - finop ; ld8 152(%sp),%i29 - finop ; ld8 144(%sp),%i30 - -# -# FPU registers don't need to be loaded, or will be loaded by an -# enclosing scope (e.g., if this is called by qt_block). -# - -# -# Load the special registers. We don't load the stack ptr because -# the new stack is passed in as an argument, we don't load the EFP -# because we don't use it, and we load the return address specially -# off the top of the stack. -# - finop ; ld8 0(%sp),%c14 # return addr - finop ; ld8 496(%sp),%cp - finop ; ld8 504(%sp),%fp - - finop ; jmp 32(%c14) # jump back to thread - finop ; movi8 512,%c5 # stack adjust - finop ; sadd8.ntr 0,%sp,%c5,%sp - - .data - .half 0x0, 0x0, 0x7ffff000, 0x7fff8000 -qt_block: - .word qt_block$TXT - .word qt_error - .word qt_error$TXT - .word qt_blocki -# -# Handle saving and restoring the FPU regs, relying on qt_blocki -# to save and restore the remaining registers. -# - .text -qt_block$TXT: - finop ; cxnop # entry prefix - finop ; cxnop # entry prefix - - add8.ntr 29,%i31,%i31 ; movi8 512,%c5 # ICR; stk adjust - finop ; ssub8.ntr 0,%sp,%c5,%sp - finop ; st8 %fp,504(%sp) # Save caller's fp - finop ; st8 %cp,496(%sp) # Save caller's cp - finop ; st8 %c14,488(%sp) # store ret addr - finop ; sadd8.ntr 0,%sp,%c5,%fp # Our frame ptr - finop ; mov8_8 %c10, %cp # Our cp - -# -# Store 8 registers at once...destination must be a multiple of 64 -# - finop ; st64 %f16,384(%sp) - finop ; st64 %f24,320(%sp) - finop ; st64 %f32,256(%sp) - finop ; st64 %f40,192(%sp) - finop ; st64 %f48,128(%sp) - finop ; st64 %f56,64(%sp) - -# -# Call the integer blocking routine, passing the arguments passed to us -# - finop ; ld8 24(%cp), %c10 - finop ; cxnop - finop ; jsr %c14, qt_blocki$TXT - finop ; cxnop - finop ; cxnop - movi8 4,%i0 ; movi8 0,%c8 # nargs brain dmg - -# -# Load 8 registers at once...source must be a multiple of 64 -# - finop ; ld64 64(%sp),%f56 - finop ; ld64 128(%sp),%f48 - finop ; ld64 192(%sp),%f40 - finop ; ld64 256(%sp),%f32 - finop ; ld64 320(%sp),%f24 - finop ; ld64 384(%sp),%f16 - - finop ; ld8 488(%sp),%c14 - finop ; ld8 496(%sp),%cp - finop ; ld8 504(%sp),%fp - finop ; jmp 32(%c14) # jump back to thread - finop ; movi8 512,%c5 # stack adjust - finop ; sadd8.ntr 0,%sp,%c5,%sp - - - .data - .half 0x0, 0x0, 0x7ffff000, 0x7fff8000 -qt_start: - .word qt_start$TXT -# -# A new thread is set up to "appear" as if it were executing code at -# the beginning of qt_start and then it called a blocking routine -# (qt_blocki). So when a new thread starts to run, it gets unblocked -# by the code above and "returns" to `qt_start$TXT' in the -# restore step of the switch. Blocked threads jump to 16(qt_restore$TXT), -# and starting threads jump to 16(qt_start$TXT). -# - .text -qt_start$TXT: - finop ; cxnop # - finop ; cxnop # - finop ; ld8 40(%sp),%c10 # `only' constant block - finop ; ld8 32(%sp),%i4 # `userf' arg. - finop ; ld8 24(%sp),%i3 # `t' arg. - finop ; ld8 0(%c10),%c4 # `only' text location - finop ; ld8 16(%sp),%i2 # `u' arg. - finop ; cxnop - finop ; jsr %c14,16(%c4) # call `only' -# -# Pop the frame used to store the thread's initial data -# - finop ; sadd8.ntr 0,%sp,128,%sp - finop ; cxnop - movi8 2,%i0 ; movi8 0,%c8 # nargs brain dmg -# -# If we ever return, it's an error. -# - finop ; jmp qt_error$TXT - finop ; cxnop - finop ; cxnop - movi8 0,%i0 ; movi8 0,%c8 # nargs brain dmg - - -# -# This stuff is broken -# - .data - .half 0x0, 0x0, 0x7ffff000, 0x7fff8000 -qt_vstart: - .word qt_vstart$TXT - - .text -qt_vstart$TXT: - finop ; cxnop # entry prefix - finop ; cxnop # entry prefix - finop ; cxnop - finop ; cxnop - add8.ntr 11,%i31,%i31 ; movi8 512,%c5 - finop ; ssub8.ntr 0,%sp,%c5,%sp # fix stack - finop ; ld8 8(%sp),%i2 # load `t' as arg to - finop ; cxnop # `startup' - finop ; cxnop - finop ; ld8 16(%sp),%c10 # `startup' const block - finop ; cxnop - finop ; cxnop - finop ; ld8 0(%c10),%c4 # `startup' text loc. - finop ; cxnop - finop ; cxnop - finop ; jsr %c14,16(%c4) # call `startup' - finop ; cxnop - finop ; cxnop - movi8 1, %i0 ; movi8 0,%c8 # nargs brain dmg -# -# finop ; sadd 0,%sp,128,%sp # alter stack -# - finop ; ld8 8(%sp),%i2 # load `t' as arg to - finop ; ld8 8(%sp),%i2 # load `t' as arg to - finop ; ld8 8(%sp),%i2 # load `t' as arg to - finop ; ld8 8(%sp),%i2 # load `t' as arg to - - finop ; ld8 32(%sp),%c10 # `only' constant block - finop ; ld8 8(%sp),%i2 # `u' arg. - finop ; ld8 16(%sp),%i3 # `t' arg. - finop ; ld8 0(%c10),%c4 # `only' text location - finop ; ld8 24(%sp),%i4 # `userf' arg. - finop ; cxnop - finop ; jsr %c4,16(%c4) # call `only' - finop ; cxnop - finop ; cxnop -# -# If the callee ever calls `nargs', the following instruction (pair) -# will be executed. However, we don't know when we compile this code -# how many args are being passed. So we give our best guess: 0. -# - movi8 0,%i0 ; movi8 0,%c8 # nargs brain dmg -# -# If we ever return, it's an error. -# - finop ; jmp qt_error$TXT - finop ; cxnop - finop ; cxnop - movi8 0,%i0 ; movi8 0,%c8 # nargs brain dmg diff --git a/qt/md/ksr1_b.s b/qt/md/ksr1_b.s deleted file mode 100644 index 80b0c59eb..000000000 --- a/qt/md/ksr1_b.s +++ /dev/null @@ -1,49 +0,0 @@ -/* - * QuickThreads -- Threads-building toolkit. - * Copyright (c) 1993 by David Keppel - * - * Permission to use, copy, modify and distribute this software and - * its documentation for any purpose and without fee is hereby - * granted, provided that the above copyright notice and this notice - * appear in all copies. This software is provided as a - * proof-of-concept and for demonstration purposes; there is no - * representation about the suitability of this software for any - * purpose. - */ - - .file "ksr1_b.s" - .def .debug; .endef - - .globl b_call_reg$TXT - .globl b_call_reg - .globl b_call_imm$TXT - .globl b_call_imm - .globl b_add$TXT - .globl b_add - .globl b_load$TXT - .globl b_load - - -b_call_reg: -b_call_imm: -b_add: -b_load: - .word b_call_reg$TXT - .word qt_error - .word qt_error$TXT - - -b_call_reg$TXT: -b_call_imm$TXT: -b_add$TXT: -b_load$TXT: - finop ; cxnop - finop ; cxnop - finop ; ld8 16(%cp),%c4 - finop ; ld8 8(%cp),%cp - finop ; cxnop - finop ; cxnop - finop ; jsr %c4,0(%c4) - finop ; cxnop - finop ; cxnop - diff --git a/qt/md/m88k.Makefile b/qt/md/m88k.Makefile deleted file mode 100644 index 608c70690..000000000 --- a/qt/md/m88k.Makefile +++ /dev/null @@ -1,6 +0,0 @@ - -# -# Hosted compilers for 88k for Meerkat. -# -CC = gcc88 -Dm88k -ansi -pedantic -Wall -fno-builtin -AS = as88 diff --git a/qt/md/m88k.c b/qt/md/m88k.c deleted file mode 100644 index 9e3ae8ba8..000000000 --- a/qt/md/m88k.c +++ /dev/null @@ -1,111 +0,0 @@ -/* - * QuickThreads -- Threads-building toolkit. - * Copyright (c) 1993 by David Keppel - * - * Permission to use, copy, modify and distribute this software and - * its documentation for any purpose and without fee is hereby - * granted, provided that the above copyright notice and this notice - * appear in all copies. This software is provided as a - * proof-of-concept and for demonstration purposes; there is no - * representation about the suitability of this software for any - * purpose. - */ - -#include <stdarg.h> -#include "qt.h" - -/* Varargs is harder on the m88k. Parameters are saved on the stack as - something like (stack grows down to low memory; low at bottom of - picture): - - | : - | arg8 <-- va_list.__va_stk - +--- - | : - +--- - | arg7 - | : - | iarg0 <-- va_list.__va_reg - +--- - | : - | va_list { __va_arg, __va_stk, __va_reg } - | : - +--- - - Here, `va_list.__va_arg' is the number of word-size arguments - that have already been skipped. Doubles must be double-arligned. - - What this means for us is that the user's routine needs to be - called with an arg list where some of the words in the `__va_stk' - part of the parameter list have to be promoted to registers. - - BUG: doubleword register arguments must be double-aligned. If - something is passed as an even # arg and used as an odd # arg or - vice-versa, the code in the called routine (in the new thread) that - decides how to adjust the index will get it wrong, because it will - be expect it to be, say, doubleword aligned and it will really be - singleword aligned. - - I'm not sure you can solve this without knowing the types of all - the arguments. All in all, we never promised varargs would work - reliably. */ - - - -#define QT_VADJ(sp) (((char *)sp) - QT_VSTKBASE) - -/* Always allocate at least enough space for 8 args; waste some space - at the base of the stack to ensure the startup routine doesn't read - off the end of the stack. */ - -#define QT_VARGS_MD0(sp, vabytes) \ - ((qt_t *)(((char *)(sp)) - 8*4 - QT_STKROUNDUP(vabytes))) - -extern void qt_vstart(void); -#define QT_VARGS_MD1(sp) (QT_SPUT (sp, QT_1, qt_vstart)) - - - struct qt_t * -qt_vargs (struct qt_t *qsp, int nbytes, void *vargs, - void *pt, qt_function_t *startup, - qt_function_t *vuserf, qt_function_t *cleanup) -{ - va_list ap; - int i; - int n; /* Number of words into original arg list. */ - qt_word_t *sp; - int *reg; /* Where to read passed-in-reg args. */ - int *stk; /* Where to read passed-on-stk args. */ - - ap = *(va_list *)vargs; - qsp = QT_VARGS_MD0 (qsp, nbytes); - sp = (qt_word_t *)qsp; - - reg = (ap.__va_arg < 8) - ? &ap.__va_reg[ap.__va_arg] - : 0; - stk = &ap.__va_stk[8]; - n = ap.__va_arg; - for (i=0; i<nbytes/sizeof(qt_word_t) && n<8; ++i,++n) { - sp[i] = *reg++; - } - for (; i<nbytes/sizeof(qt_word_t); ++i) { - sp[i] = *stk++; - } - -#ifdef QT_NDEF - for (i=0; i<nbytes/sizeof(qt_word_t); ++i) { - sp[i] = (n < 8) - ? *reg++ - : *stk++; - ++n; - } -#endif - - QT_VARGS_MD1 (QT_VADJ(sp)); - QT_SPUT (QT_VADJ(sp), QT_VARGT_INDEX, pt); - QT_SPUT (QT_VADJ(sp), QT_VSTARTUP_INDEX, startup); - QT_SPUT (QT_VADJ(sp), QT_VUSERF_INDEX, vuserf); - QT_SPUT (QT_VADJ(sp), QT_VCLEANUP_INDEX, cleanup); - return ((qt_t *)QT_VADJ(sp)); -} diff --git a/qt/md/m88k.h b/qt/md/m88k.h deleted file mode 100644 index df7e07a85..000000000 --- a/qt/md/m88k.h +++ /dev/null @@ -1,159 +0,0 @@ -/* - * QuickThreads -- Threads-building toolkit. - * Copyright (c) 1993 by David Keppel - * - * Permission to use, copy, modify and distribute this software and - * its documentation for any purpose and without fee is hereby - * granted, provided that the above copyright notice and this notice - * appear in all copies. This software is provided as a - * proof-of-concept and for demonstration purposes; there is no - * representation about the suitability of this software for any - * purpose. - */ - -#ifndef QT_M88K_H -#define QT_M88K_H - -typedef unsigned long qt_word_t; - -#define QT_GROW_DOWN - -/* Stack layout on the mips: - - Callee-save registers are: $16-$23, $30; $f20-$f30. - Also save $31, return pc. - - Non-varargs: - - +--- - | r30 (fp) on startup === 0 - | r25 - | r24 - | r23 - | r22 - | r21 - | r20 - | r19 - | r18 - | r17 on startup === `only' - | r16 on startup === `userf' - | r15 on startup === `pt' - | r14 on startup === `pu' - | r1 on startup === `qt_start' - | 0 - | 0 - +--- - | 0 - | ... (8 regs worth === 32 bytes of homing area) - | 0 <--- sp - +--- - - Conventions for varargs: - - | : - | arg8 - +--- - | r30 (fp) arg7 - | r25 arg6 - | r24 arg5 - | r23 arg4 - | r22 arg3 - | r21 arg2 - | r20 arg1 - | r19 arg0 - | r18 - | r17 on startup === `startup' - | r16 on startup === `vuserf' - | r15 on startup === `pt' - | r14 on startup === `cleanup' - | r1 on startup === `qt_vstart' - | 0 - | 0 - +--- - | 0 - | ... (8 regs worth === 32 bytes of homing area) - | 0 <--- sp - +--- - - */ - - -/* Stack must be doubleword aligned. */ -#define QT_STKALIGN (16) /* Doubleword aligned. */ - -/* How much space is allocated to hold all the crud for - initialization: saved registers plus padding to keep the stack - aligned plus 8 words of padding to use as a `homing area' (for - r2-r9) when calling helper functions on the stack of the (not yet - started) thread. The varargs save area is small because it gets - overlapped with the top of the parameter list. In case the - parameter list is less than 8 args, QT_ARGS_MD0 adds some dead - space at the top of the stack. */ - -#define QT_STKBASE (16*4 + 8*4) -#define QT_VSTKBASE (8*4 + 8*4) - - -/* Index of various registers. */ -#define QT_1 (8+2) -#define QT_14 (8+3) -#define QT_15 (8+4) -#define QT_16 (8+5) -#define QT_17 (8+6) -#define QT_30 (8+15) - - -/* When a never-before-run thread is restored, the return pc points - to a fragment of code that starts the thread running. For - non-vargs functions, it sets up arguments and calls the client's - `only' function. For varargs functions, the startup code calls the - startup, user, and cleanup functions. - - For non-varargs functions, we set the frame pointer to 0 to - null-terminate the call chain. - - For varargs functions, the frame pointer register is used to hold - one of the arguments, so that all arguments can be laid out in - memory by the conventional `qt_vargs' varargs initialization - routine. - - The varargs startup routine always reads 8 words of arguments from - the stack. If there are less than 8 words of arguments, then the - arg list could call off the top of the stack. To prevent fall-off, - always allocate 8 words. */ - -extern void qt_start(void); -#define QT_ARGS_MD(sp) \ - (QT_SPUT (sp, QT_1, qt_start), \ - QT_SPUT (sp, QT_30, 0)) - - -/* The m88k uses a struct for `va_list', so pass a pointer to the - struct. */ - -typedef void (qt_function_t)(void); - -struct qt_t; -extern struct qt_t *qt_vargs (struct qt_t *sp, int nbytes, - void *vargs, void *pt, - qt_function_t *startup, - qt_function_t *vuserf, - qt_function_t *cleanup); - -#define QT_VARGS(sp, nbytes, vargs, pt, startup, vuserf, cleanup) \ - (qt_vargs (sp, nbytes, &(vargs), pt, (qt_function_t *)startup, \ - (qt_function_t *)vuserf, (qt_function_t *)cleanup)) - - -/* The *index* (positive offset) of where to put each value. */ -#define QT_ONLY_INDEX (QT_17) -#define QT_USER_INDEX (QT_16) -#define QT_ARGT_INDEX (QT_15) -#define QT_ARGU_INDEX (QT_14) - -#define QT_VCLEANUP_INDEX (QT_14) -#define QT_VUSERF_INDEX (QT_16) -#define QT_VSTARTUP_INDEX (QT_17) -#define QT_VARGT_INDEX (QT_15) - -#endif /* ndef QT_M88K_H */ diff --git a/qt/md/m88k.s b/qt/md/m88k.s deleted file mode 100644 index 42467e8d5..000000000 --- a/qt/md/m88k.s +++ /dev/null @@ -1,132 +0,0 @@ -/* m88k.s -- assembly support. */ - -/* - * QuickThreads -- Threads-building toolkit. - * Copyright (c) 1993 by David Keppel - * - * Permission to use, copy, modify and distribute this software and - * its documentation for any purpose and without fee is hereby - * granted, provided that the above copyright notice and this notice - * appear in all copies. This software is provided as a - * proof-of-concept and for demonstration purposes; there is no - * representation about the suitability of this software for any - * purpose. - */ - -/* Callee-save r14..r25, r31(sp), r30(fp). r1 === return pc. - * Argument registers r2..r9, return value r2..r3. - * - * On startup, restore regs so retpc === call to a function to start. - * - * We're going to call a function (r2) from within the context switch - * routine. Call it on the new thread's stack on behalf of the old - * thread. - */ - - .globl _qt_block - .globl _qt_blocki - .globl _qt_abort - .globl _qt_start - .globl _qt_vstart - - /* - ** r2: ptr to function to call once curr is suspended - ** and control is on r5's stack. - ** r3: 1'th arg to *r2. - ** r4: 2'th arg to *r2. - ** r5: sp of thread to suspend. - ** - ** The helper routine returns a value that is passed on as the - ** return value from the blocking routine. Since we don't - ** touch r2 between the helper's return and the end of - ** function, we get this behavior for free. - ** - ** Same entry for integer-only and floating-point, since there - ** are no separate integer and floating-point registers. - ** - ** Each procedure call sets aside a ``home region'' of 8 regs - ** for r2-r9 for varargs. For context switches we don't use - ** the ``home region'' for varargs so use it to save regs. - ** Allocate 64 bytes of save space -- use 32 bytes of register - ** save area passed in to us plus 32 bytes we allcated, use - ** the other 32 bytes for save area for a save area to call - ** the helper function. - */ -_qt_block: -_qt_blocki: - sub r31, r31,64 /* Allocate reg save space. */ - st r1, r31,8+32 /* Save callee-save registers. */ - st r14, r31,12+32 - st.d r15, r31,16+32 - st.d r17, r31,24+32 - st.d r19, r31,32+32 - st.d r21, r31,40+32 - st.d r23, r31,48+32 - st r25, r31,56+32 - st r30, r31,60+32 - -_qt_abort: - addu r14, r31,0 /* Remember old sp. */ - addu r31, r5,0 /* Set new sp. */ - jsr.n r2 /* Call helper. */ - addu r2, r14,0 /* Pass old sp as an arg0 to helper. */ - - ld r1, r31,8+32 /* Restore callee-save registers. */ - ld r14, r31,12+32 - ld.d r15, r31,16+32 - ld.d r17, r31,24+32 - ld.d r19, r31,32+32 - ld.d r21, r31,40+32 - ld.d r23, r31,48+32 - ld r25, r31,56+32 - ld r30, r31,60+32 - - jmp.n r1 /* Return to new thread's caller. */ - addu r31, r31,64 /* Free register save space. */ - - - /* - ** Non-varargs thread startup. - ** See `m88k.h' for register use conventions. - */ -_qt_start: - addu r2, r14,0 /* Set user arg `pu'. */ - addu r3, r15,0 /* ... user function pt. */ - jsr.n r17 /* Call `only'. */ - addu r4, r16,0 /* ... user function userf. */ - - bsr _qt_error /* `only' erroniously returned. */ - - - /* - ** Varargs thread startup. - ** See `m88k.h' for register use conventions. - ** - ** Call the `startup' function with just argument `pt'. - ** Then call `vuserf' with 8 register args plus any - ** stack args. - ** Then call `cleanup' with `pt' and the return value - ** from `vuserf'. - */ -_qt_vstart: - addu r18, r30,0 /* Remember arg7 to `vuserf'. */ - addu r30, r0,0 /* Null-terminate call chain. */ - - jsr.n r17 /* Call `startup'. */ - addu r2, r15,0 /* `pt' is arg0 to `startup'. */ - - addu r2, r19,0 /* Set arg0. */ - addu r3, r20,0 /* Set arg1. */ - addu r4, r21,0 /* Set arg2. */ - addu r5, r22,0 /* Set arg3. */ - addu r6, r23,0 /* Set arg4. */ - addu r7, r24,0 /* Set arg5. */ - addu r8, r25,0 /* Set arg6. */ - jsr.n r16 /* Call `vuserf'. */ - addu r9, r18,0 /* Set arg7. */ - - addu r3, r2,0 /* Ret. value is arg1 to `cleanup'. */ - jsr.n r14 /* Call `cleanup'. */ - addu r2, r15,0 /* `pt' is arg0 to `cleanup'. */ - - bsr _qt_error /* `cleanup' erroniously returned. */ diff --git a/qt/md/m88k_b.s b/qt/md/m88k_b.s deleted file mode 100644 index 1926e6ae8..000000000 --- a/qt/md/m88k_b.s +++ /dev/null @@ -1,117 +0,0 @@ -/* - * QuickThreads -- Threads-building toolkit. - * Copyright (c) 1993 by David Keppel - * - * Permission to use, copy, modify and distribute this software and - * its documentation for any purpose and without fee is hereby - * granted, provided that the above copyright notice and this notice - * appear in all copies. This software is provided as a - * proof-of-concept and for demonstration purposes; there is no - * representation about the suitability of this software for any - * purpose. - */ - - .text - .globl _b_call_reg - .globl _b_call_imm - .globl _b_add - .globl _b_load - -_b_null: - jmp r1 - -_b_call_reg: - subu r31, r31,8 /* Alloc ret pc save space. */ - st r1, r31,32 /* Save ret pc. */ - or.u r3, r0,hi16(_b_null) /* Put call addr in a reg. */ - or r3, r3,lo16(_b_null) - jsr r3 -L0: - jsr r3 - jsr r3 - jsr r3 - jsr.n r3 - subu r2, r2,5 /* Decrement #of iter to go. */ - bcnd.n gt0,r2,L0 - jsr r3 - - ld r1, r31,32 - jmp r1 - - -_b_call_imm: - subu r31, r31,8 /* Alloc ret pc save space. */ - st r1, r31,32 /* Save ret pc. */ - bsr _b_null -L1: - bsr _b_null - bsr _b_null - bsr _b_null - bsr.n _b_null - subu r2, r2,5 /* Decrement #of iter to go. */ - bcnd.n gt0,r2,L1 - bsr _b_null - - ld r1, r31,32 - jmp r1 - -_b_add: - add r0, r3,r4 -L2: - add r3, r4,r5 - add r4, r5,r6 - add r5, r6,r7 - add r8, r9,r0 - add r0, r3,r4 - add r3, r4,r5 - add r4, r5,r6 - add r5, r6,r7 - add r8, r9,r0 - - add r0, r3,r4 - add r3, r4,r5 - add r4, r5,r6 - add r5, r6,r7 - add r8, r9,r0 - add r0, r3,r4 - add r3, r4,r5 - add r4, r5,r6 - add r5, r6,r7 - add r8, r9,r0 - - subu r2, r2,20 /* Decrement #of iter to go. */ - bcnd.n gt0,r2,L2 - add r0, r3,r4 - - jmp r1 - - -_b_load: - ld r0, r31,0 -L3: - ld r3, r31,4 - ld r4, r31,8 - ld r5, r31,12 - ld r6, r31,16 - ld r0, r31,0 - ld r3, r31,4 - ld r4, r31,8 - ld r5, r31,12 - ld r6, r31,16 - - ld r0, r31,0 - ld r3, r31,4 - ld r4, r31,8 - ld r5, r31,12 - ld r6, r31,16 - ld r0, r31,0 - ld r3, r31,4 - ld r4, r31,8 - ld r5, r31,12 - ld r6, r31,16 - - subu r2, r2,20 /* Decrement #of iter to go. */ - bcnd.n gt0,r2,L3 - ld r0, r31,0 - - jmp r1 diff --git a/qt/md/mips-irix5.s b/qt/md/mips-irix5.s deleted file mode 100644 index 234a953ed..000000000 --- a/qt/md/mips-irix5.s +++ /dev/null @@ -1,182 +0,0 @@ -/* mips.s -- assembly support. */ - -/* - * QuickThreads -- Threads-building toolkit. - * Copyright (c) 1993 by David Keppel - * - * Permission to use, copy, modify and distribute this software and - * its documentation for any purpose and without fee is hereby - * granted, provided that the above copyright notice and this notice - * appear in all copies. This software is provided as a - * proof-of-concept and for demonstration purposes; there is no - * representation about the suitability of this software for any - * purpose. - */ - -/* Callee-save $16-$23, $30-$31. - * - * $25 is used as a procedure value pointer, used to discover constants - * in a callee. Thus, each caller here sets $25 before the call. - * - * On startup, restore regs so retpc === call to a function to start. - * We're going to call a function ($4) from within this routine. - * We're passing 3 args, therefore need to allocate 12 extra bytes on - * the stack for a save area. The start routine needs a like 16-byte - * save area. Must be doubleword aligned (_mips r3000 risc - * architecture_, gerry kane, pg d-23). - */ - -/* - * Modified by Assar Westerlund <assar@sics.se> to support Irix 5.x - * calling conventions for dynamically-linked code. - */ - - /* Make this position-independent code. */ - .option pic2 - - .globl qt_block - .globl qt_blocki - .globl qt_abort - .globl qt_start - .globl qt_vstart - - /* - ** $4: ptr to function to call once curr is suspended - ** and control is on $7's stack. - ** $5: 1'th arg to $4. - ** $6: 2'th arg to $4 - ** $7: sp of thread to suspend. - ** - ** Totally gross hack: The MIPS calling convention reserves - ** 4 words on the stack for a0..a3. This routine "ought" to - ** allocate space for callee-save registers plus 4 words for - ** the helper function, but instead we use the 4 words - ** provided by the function that called us (we don't need to - ** save our argument registers). So what *appears* to be - ** allocating only 40 bytes is actually allocating 56, by - ** using the caller's 16 bytes. - ** - ** The helper routine returns a value that is passed on as the - ** return value from the blocking routine. Since we don't - ** touch $2 between the helper's return and the end of - ** function, we get this behavior for free. - */ -qt_blocki: - sub $sp,$sp,40 /* Allocate reg save space. */ - sw $16, 0+16($sp) - sw $17, 4+16($sp) - sw $18, 8+16($sp) - sw $19,12+16($sp) - sw $20,16+16($sp) - sw $21,20+16($sp) - sw $22,24+16($sp) - sw $23,28+16($sp) - sw $30,32+16($sp) - sw $31,36+16($sp) - add $2, $sp,$0 /* $2 <= old sp to pass to func@$4. */ -qt_abort: - add $sp, $7,$0 /* $sp <= new sp. */ - .set noreorder - add $25, $4,$0 /* Set helper function procedure value. */ - jal $31,$25 /* Call helper func@$4 . */ - add $4, $2,$0 /* $a0 <= pass old sp as a parameter. */ - .set reorder - lw $31,36+16($sp) /* Restore callee-save regs... */ - lw $30,32+16($sp) - lw $23,28+16($sp) - lw $22,24+16($sp) - lw $21,20+16($sp) - lw $20,16+16($sp) - lw $19,12+16($sp) - lw $18, 8+16($sp) - lw $17, 4+16($sp) - lw $16, 0+16($sp) /* Restore callee-save */ - - add $sp,$sp,40 /* Deallocate reg save space. */ - j $31 /* Return to caller. */ - - /* - ** Non-varargs thread startup. - ** Note: originally, 56 bytes were allocated on the stack. - ** The thread restore routine (_blocki/_abort) removed 40 - ** of them, which means there is still 16 bytes for the - ** argument area required by the MIPS calling convention. - */ -qt_start: - add $4, $16,$0 /* Load up user function pu. */ - add $5, $17,$0 /* ... user function pt. */ - add $6, $18,$0 /* ... user function userf. */ - add $25, $19,$0 /* Set `only' procedure value. */ - jal $31,$25 /* Call `only'. */ - la $25,qt_error /* Set `qt_error' procedure value. */ - j $25 - - - /* - ** Save calle-save floating-point regs $f20-$f30 - ** See comment in `qt_block' about calling conventinos and - ** reserved space. Use the same trick here, but here we - ** actually have to allocate all the bytes since we have to - ** leave 4 words leftover for `qt_blocki'. - ** - ** Return value from `qt_block' is the same as the return from - ** `qt_blocki'. We get that for free since we don't touch $2 - ** between the return from `qt_blocki' and the return from - ** `qt_block'. - */ -qt_block: - sub $sp, $sp,56 /* 6 8-byte regs, saved ret pc, aligned. */ - swc1 $f20, 0+16($sp) - swc1 $f22, 8+16($sp) - swc1 $f24, 16+16($sp) - swc1 $f26, 24+16($sp) - swc1 $f28, 32+16($sp) - swc1 $f30, 40+16($sp) - sw $31, 48+16($sp) - jal qt_blocki - lwc1 $f20, 0+16($sp) - lwc1 $f22, 8+16($sp) - lwc1 $f24, 16+16($sp) - lwc1 $f26, 24+16($sp) - lwc1 $f28, 32+16($sp) - lwc1 $f30, 40+16($sp) - lw $31, 48+16($sp) - add $sp, $sp,56 - j $31 - - - /* - ** First, call `startup' with the `pt' argument. - ** - ** Next, call the user's function with all arguments. - ** Note that we don't know whether args were passed in - ** integer regs, fp regs, or on the stack (See Gerry Kane - ** "MIPS R2000 RISC Architecture" pg D-22), so we reload - ** all the registers, possibly with garbage arguments. - ** - ** Finally, call `cleanup' with the `pt' argument and with - ** the return value from the user's function. It is an error - ** for `cleanup' to return. - */ -qt_vstart: - add $4, $17,$0 /* `pt' is arg0 to `startup'. */ - add $25, $18,$0 /* Set `startup' procedure value. */ - jal $31, $25 /* Call `startup'. */ - - add $sp, $sp,16 /* Free extra save space. */ - lw $4, 0($sp) /* Load up args. */ - lw $5, 4($sp) - lw $6, 8($sp) - lw $7, 12($sp) - lwc1 $f12, 0($sp) /* Load up fp args. */ - lwc1 $f14, 8($sp) - add $25, $19,$0 /* Set `userf' procedure value. */ - jal $31,$25 /* Call `userf'. */ - - add $4, $17,$0 /* `pt' is arg0 to `cleanup'. */ - add $5, $2,$0 /* Ret. val is arg1 to `cleanup'. */ - add $25, $16,$0 /* Set `cleanup' procedure value. */ - jal $31, $25 /* Call `cleanup'. */ - - la $25,qt_error /* Set `qt_error' procedure value. */ - j $25 diff --git a/qt/md/mips.h b/qt/md/mips.h deleted file mode 100644 index c584a681e..000000000 --- a/qt/md/mips.h +++ /dev/null @@ -1,134 +0,0 @@ -/* - * QuickThreads -- Threads-building toolkit. - * Copyright (c) 1993 by David Keppel - * - * Permission to use, copy, modify and distribute this software and - * its documentation for any purpose and without fee is hereby - * granted, provided that the above copyright notice and this notice - * appear in all copies. This software is provided as a - * proof-of-concept and for demonstration purposes; there is no - * representation about the suitability of this software for any - * purpose. - */ - -#ifndef QT_MIPS_H -#define QT_MIPS_H - -typedef unsigned long qt_word_t; - -#define QT_GROW_DOWN - -/* Stack layout on the mips: - - Callee-save registers are: $16-$23, $30; $f20-$f30. - Also save $31, return pc. - - Non-varargs: - - +--- - | $f30 The first clump is only saved if `qt_block' - | $f28 is called, in which case it saves the fp regs - | $f26 then calls `qt_blocki' to save the int regs. - | $f24 - | $f22 - | $f20 - | $31 === return pc in `qt_block' - +--- - | $31 === return pc; on startup == qt_start - | $30 - | $23 - | $22 - | $21 - | $20 - | $19 on startup === only - | $18 on startup === $a2 === userf - | $17 on startup === $a1 === pt - | $16 on startup === $a0 === pu - | <a3> save area req'd by MIPS calling convention - | <a2> save area req'd by MIPS calling convention - | <a1> save area req'd by MIPS calling convention - | <a0> save area req'd by MIPS calling convention <--- sp - +--- - - Conventions for varargs: - - | args ... - +--- - | : - | : - | $21 - | $20 - | $19 on startup === `userf' - | $18 on startup === `startup' - | $17 on startup === `pt' - | $16 on startup === `cleanup' - | <a3> - | <a2> - | <a1> - | <a0> <--- sp - +--- - - Note: if we wanted to, we could muck about and try to get the 4 - argument registers loaded in to, e.g., $22, $23, $30, and $31, - and the return pc in, say, $20. Then, the first 4 args would - not need to be loaded from memory, they could just use - register-to-register copies. */ - - -/* Stack must be doubleword aligned. */ -#define QT_STKALIGN (8) /* Doubleword aligned. */ - -/* How much space is allocated to hold all the crud for - initialization: $16-$23, $30, $31. Just do an integer restore, - no need to restore floating-point. Four words are needed for the - argument save area for the helper function that will be called for - the old thread, just before the new thread starts to run. */ - -#define QT_STKBASE (14 * 4) -#define QT_VSTKBASE QT_STKBASE - - -/* Offsets of various registers. */ -#define QT_31 (9+4) -#define QT_19 (3+4) -#define QT_18 (2+4) -#define QT_17 (1+4) -#define QT_16 (0+4) - - -/* When a never-before-run thread is restored, the return pc points - to a fragment of code that starts the thread running. For - non-vargs functions, it just calls the client's `only' function. - For varargs functions, it calls the startup, user, and cleanup - functions. - - The varargs startup routine always reads 4 words of arguments from - the stack. If there are less than 4 words of arguments, then the - startup routine can read off the top of the stack. To prevent - errors we always allocate 4 words. If there are more than 3 words - of arguments, the 4 preallocated words are simply wasted. */ - -extern void qt_start(void); -#define QT_ARGS_MD(sp) (QT_SPUT (sp, QT_31, qt_start)) - -#define QT_VARGS_MD0(sp, vabytes) \ - ((qt_t *)(((char *)(sp)) - 4*4 - QT_STKROUNDUP(vabytes))) - -extern void qt_vstart(void); -#define QT_VARGS_MD1(sp) (QT_SPUT (sp, QT_31, qt_vstart)) - -#define QT_VARGS_DEFAULT - - -/* The *index* (positive offset) of where to put each value. */ -#define QT_ONLY_INDEX (QT_19) -#define QT_USER_INDEX (QT_18) -#define QT_ARGT_INDEX (QT_17) -#define QT_ARGU_INDEX (QT_16) - -#define QT_VCLEANUP_INDEX (QT_16) -#define QT_VUSERF_INDEX (QT_19) -#define QT_VSTARTUP_INDEX (QT_18) -#define QT_VARGT_INDEX (QT_17) - -#endif /* ndef QT_MIPS_H */ diff --git a/qt/md/mips.s b/qt/md/mips.s deleted file mode 100644 index b074b98dc..000000000 --- a/qt/md/mips.s +++ /dev/null @@ -1,164 +0,0 @@ -/* mips.s -- assembly support. */ - -/* - * QuickThreads -- Threads-building toolkit. - * Copyright (c) 1993 by David Keppel - * - * Permission to use, copy, modify and distribute this software and - * its documentation for any purpose and without fee is hereby - * granted, provided that the above copyright notice and this notice - * appear in all copies. This software is provided as a - * proof-of-concept and for demonstration purposes; there is no - * representation about the suitability of this software for any - * purpose. - */ - -/* Callee-save $16-$23, $30-$31. - * - * On startup, restore regs so retpc === call to a function to start. - * We're going to call a function ($4) from within this routine. - * We're passing 3 args, therefore need to allocate 12 extra bytes on - * the stack for a save area. The start routine needs a like 16-byte - * save area. Must be doubleword aligned (_mips r3000 risc - * architecture_, gerry kane, pg d-23). - */ - - .globl qt_block - .globl qt_blocki - .globl qt_abort - .globl qt_start - .globl qt_vstart - - /* - ** $4: ptr to function to call once curr is suspended - ** and control is on $7's stack. - ** $5: 1'th arg to $4. - ** $6: 2'th arg to $4 - ** $7: sp of thread to suspend. - ** - ** Totally gross hack: The MIPS calling convention reserves - ** 4 words on the stack for a0..a3. This routine "ought" to - ** allocate space for callee-save registers plus 4 words for - ** the helper function, but instead we use the 4 words - ** provided by the function that called us (we don't need to - ** save our argument registers). So what *appears* to be - ** allocating only 40 bytes is actually allocating 56, by - ** using the caller's 16 bytes. - ** - ** The helper routine returns a value that is passed on as the - ** return value from the blocking routine. Since we don't - ** touch $2 between the helper's return and the end of - ** function, we get this behavior for free. - */ -qt_blocki: - sub $sp,$sp,40 /* Allocate reg save space. */ - sw $16, 0+16($sp) - sw $17, 4+16($sp) - sw $18, 8+16($sp) - sw $19,12+16($sp) - sw $20,16+16($sp) - sw $21,20+16($sp) - sw $22,24+16($sp) - sw $23,28+16($sp) - sw $30,32+16($sp) - sw $31,36+16($sp) - add $2, $sp,$0 /* $2 <= old sp to pass to func@$4. */ -qt_abort: - add $sp, $7,$0 /* $sp <= new sp. */ - .set noreorder - jal $31,$4 /* Call helper func@$4 . */ - add $4, $2,$0 /* $a0 <= pass old sp as a parameter. */ - .set reorder - lw $31,36+16($sp) /* Restore callee-save regs... */ - lw $30,32+16($sp) - lw $23,28+16($sp) - lw $22,24+16($sp) - lw $21,20+16($sp) - lw $20,16+16($sp) - lw $19,12+16($sp) - lw $18, 8+16($sp) - lw $17, 4+16($sp) - lw $16, 0+16($sp) /* Restore callee-save */ - - add $sp,$sp,40 /* Deallocate reg save space. */ - j $31 /* Return to caller. */ - - /* - ** Non-varargs thread startup. - ** Note: originally, 56 bytes were allocated on the stack. - ** The thread restore routine (_blocki/_abort) removed 40 - ** of them, which means there is still 16 bytes for the - ** argument area required by the MIPS calling convention. - */ -qt_start: - add $4, $16,$0 /* Load up user function pu. */ - add $5, $17,$0 /* ... user function pt. */ - add $6, $18,$0 /* ... user function userf. */ - jal $31,$19 /* Call `only'. */ - j qt_error - - - /* - ** Save calle-save floating-point regs $f20-$f30 - ** See comment in `qt_block' about calling conventinos and - ** reserved space. Use the same trick here, but here we - ** actually have to allocate all the bytes since we have to - ** leave 4 words leftover for `qt_blocki'. - ** - ** Return value from `qt_block' is the same as the return from - ** `qt_blocki'. We get that for free since we don't touch $2 - ** between the return from `qt_blocki' and the return from - ** `qt_block'. - */ -qt_block: - sub $sp, $sp,56 /* 6 8-byte regs, saved ret pc, aligned. */ - swc1 $f20, 0+16($sp) - swc1 $f22, 8+16($sp) - swc1 $f24, 16+16($sp) - swc1 $f26, 24+16($sp) - swc1 $f28, 32+16($sp) - swc1 $f30, 40+16($sp) - sw $31, 48+16($sp) - jal qt_blocki - lwc1 $f20, 0+16($sp) - lwc1 $f22, 8+16($sp) - lwc1 $f24, 16+16($sp) - lwc1 $f26, 24+16($sp) - lwc1 $f28, 32+16($sp) - lwc1 $f30, 40+16($sp) - lw $31, 48+16($sp) - add $sp, $sp,56 - j $31 - - - /* - ** First, call `startup' with the `pt' argument. - ** - ** Next, call the user's function with all arguments. - ** Note that we don't know whether args were passed in - ** integer regs, fp regs, or on the stack (See Gerry Kane - ** "MIPS R2000 RISC Architecture" pg D-22), so we reload - ** all the registers, possibly with garbage arguments. - ** - ** Finally, call `cleanup' with the `pt' argument and with - ** the return value from the user's function. It is an error - ** for `cleanup' to return. - */ -qt_vstart: - add $4, $17,$0 /* `pt' is arg0 to `startup'. */ - jal $31, $18 /* Call `startup'. */ - - add $sp, $sp,16 /* Free extra save space. */ - lw $4, 0($sp) /* Load up args. */ - lw $5, 4($sp) - lw $6, 8($sp) - lw $7, 12($sp) - lwc1 $f12, 0($sp) /* Load up fp args. */ - lwc1 $f14, 8($sp) - jal $31,$19 /* Call `userf'. */ - - add $4, $17,$0 /* `pt' is arg0 to `cleanup'. */ - add $5, $2,$0 /* Ret. val is arg1 to `cleanup'. */ - jal $31, $16 /* Call `cleanup'. */ - - j qt_error diff --git a/qt/md/mips_b.s b/qt/md/mips_b.s deleted file mode 100644 index 5b3740843..000000000 --- a/qt/md/mips_b.s +++ /dev/null @@ -1,99 +0,0 @@ -/* - * QuickThreads -- Threads-building toolkit. - * Copyright (c) 1993 by David Keppel - * - * Permission to use, copy, modify and distribute this software and - * its documentation for any purpose and without fee is hereby - * granted, provided that the above copyright notice and this notice - * appear in all copies. This software is provided as a - * proof-of-concept and for demonstration purposes; there is no - * representation about the suitability of this software for any - * purpose. - */ - - .globl b_call_reg - .globl b_call_imm - .globl b_add - .globl b_load - - .ent b_null -b_null: - j $31 - .end b_null - - .ent b_call_reg -b_call_reg: - la $5,b_null - add $6, $31,0 -$L0: - jal $5 - jal $5 - jal $5 - jal $5 - jal $5 - - sub $4, $4,5 - bgtz $4,$L0 - j $6 - .end - - - .ent b_call_imm -b_call_imm: - add $6, $31,0 -$L1: - jal b_null - jal b_null - jal b_null - jal b_null - jal b_null - - sub $4, $4,5 - bgtz $4,$L1 - j $6 - .end - - - .ent b_add -b_add: - add $5, $0,$4 - add $6, $0,$4 - add $7, $0,$4 - add $8, $0,$4 -$L2: - sub $4, $4,5 - sub $5, $5,5 - sub $6, $6,5 - sub $7, $7,5 - sub $8, $8,5 - - sub $4, $4,5 - sub $5, $5,5 - sub $6, $6,5 - sub $7, $7,5 - sub $8, $8,5 - - bgtz $4,$L2 - j $31 - .end - - - .ent b_load -b_load: -$L3: - ld $0, 0($sp) - ld $0, 4($sp) - ld $0, 8($sp) - ld $0, 12($sp) - ld $0, 16($sp) - - ld $0, 20($sp) - ld $0, 24($sp) - ld $0, 28($sp) - ld $0, 32($sp) - ld $0, 36($sp) - - sub $4, $4,10 - bgtz $4,$L3 - j $31 - .end diff --git a/qt/md/null.README b/qt/md/null.README deleted file mode 100644 index e69de29bb..000000000 --- a/qt/md/null.README +++ /dev/null diff --git a/qt/md/null.c b/qt/md/null.c deleted file mode 100644 index 775db62be..000000000 --- a/qt/md/null.c +++ /dev/null @@ -1,14 +0,0 @@ -/* - * QuickThreads -- Threads-building toolkit. - * Copyright (c) 1993 by David Keppel - * - * Permission to use, copy, modify and distribute this software and - * its documentation for any purpose and without fee is hereby - * granted, provided that the above copyright notice and this notice - * appear in all copies. This software is provided as a - * proof-of-concept and for demonstration purposes; there is no - * representation about the suitability of this software for any - * purpose. - */ - -char const qtmd_rcsid[] = "$Header: /home/ludo/src/guile.cvs/gitification/guile-cvs/guile/guile-core/qt/md/null.c,v 1.1 1996-10-01 03:34:16 mdj Exp $"; diff --git a/qt/md/solaris.README b/qt/md/solaris.README deleted file mode 100644 index 04f855c44..000000000 --- a/qt/md/solaris.README +++ /dev/null @@ -1,19 +0,0 @@ -Solaris 2.x is like System V (maybe it *is* System V?) and is different -from older versions in that it uses no leading underscore for variable -and function names. That is, the old convention was: - - foo(){} - -got compiled as - - .globl _foo - _foo: - -and is now compiled as - - .globl foo - foo: - -The `config' script should fix up the older (leading underscore) versions -of the machine-dependent files to use the newer (no leading underscore) -calling conventions. diff --git a/qt/md/sparc.h b/qt/md/sparc.h deleted file mode 100644 index e2ab281b4..000000000 --- a/qt/md/sparc.h +++ /dev/null @@ -1,140 +0,0 @@ -/* - * QuickThreads -- Threads-building toolkit. - * Copyright (c) 1993 by David Keppel - * - * Permission to use, copy, modify and distribute this software and - * its documentation for any purpose and without fee is hereby - * granted, provided that the above copyright notice and this notice - * appear in all copies. This software is provided as a - * proof-of-concept and for demonstration purposes; there is no - * representation about the suitability of this software for any - * purpose. - */ - -#ifndef QT_SPARC_H -#define QT_SPARC_H - -typedef unsigned long qt_word_t; - -/* Stack layout on the sparc: - - non-varargs: - - +--- - | <blank space for alignment> - | %o7 == return address -> qt_start - | %i7 - | %i6 == frame pointer -> 0 (NULL-terminated stack frame chain) - | %i5 -> only - | %i4 -> userf - | %i3 - | %i2 -> pt - | %i1 -> pu - | %i0 - | %l7 - | %l6 - | %l5 - | %l4 - | %l3 - | %l2 - | %l1 - | %l0 <--- qt_t.sp - +--- - - varargs: - - | : - | : - | argument list - | one-word aggregate return pointer - +--- - | <blank space for alignment> - | %o7 == return address -> qt_vstart - | %i7 - | %i6 == frame pointer -> 0 (NULL-terminated stack frame chain) - | %i5 -> startup - | %i4 -> userf - | %i3 -> cleanup - | %i2 -> pt - | %i1 - | %i0 - | %l7 - | %l6 - | %l5 - | %l4 - | %l3 - | %l2 - | %l1 - | %l0 <--- qt_t.sp - +--- - - */ - - -/* What to do to start a thread running. */ -extern void qt_start (void); -extern void qt_vstart (void); - - -/* Hold 17 saved registers + 1 word for alignment. */ -#define QT_STKBASE (18 * 4) -#define QT_VSTKBASE QT_STKBASE - - -/* Stack must be doubleword aligned. */ -#define QT_STKALIGN (8) /* Doubleword aligned. */ - -#define QT_ONLY_INDEX (QT_I5) -#define QT_USER_INDEX (QT_I4) -#define QT_ARGT_INDEX (QT_I2) -#define QT_ARGU_INDEX (QT_I1) - -#define QT_VSTARTUP_INDEX (QT_I5) -#define QT_VUSERF_INDEX (QT_I4) -#define QT_VCLEANUP_INDEX (QT_I3) -#define QT_VARGT_INDEX (QT_I2) - -#define QT_O7 (16) -#define QT_I6 (14) -#define QT_I5 (13) -#define QT_I4 (12) -#define QT_I3 (11) -#define QT_I2 (10) -#define QT_I1 ( 9) - - -/* The thread will ``return'' to the `qt_start' routine to get things - going. The normal return sequence takes us to QT_O7+8, so we - pre-subtract 8. The frame pointer chain is 0-terminated to prevent - the trap handler from chasing off in to random memory when flushing - stack windows. */ - -#define QT_ARGS_MD(top) \ - (QT_SPUT ((top), QT_O7, ((void *)(((int)qt_start)-8))), \ - QT_SPUT ((top), QT_I6, 0)) - - -/* The varargs startup routine always reads 6 words of arguments - (6 argument registers) from the stack, offset by one word to - allow for an aggregate return area pointer. If the varargs - routine actually pushed fewer words than that, qt_vstart could read - off the top of the stack. To prevent errors, we always allocate 8 - words. The space is often just wasted. */ - -#define QT_VARGS_MD0(sp, vabytes) \ - ((qt_t *)(((char *)(sp)) - 8*4 - QT_STKROUNDUP(vabytes))) - -#define QT_VARGS_MD1(sp) \ - (QT_SPUT (sp, QT_O7, ((void *)(((int)qt_vstart)-8)))) - -/* The SPARC has wierdo calling conventions which stores a hidden - parameter for returning aggregate values, so the rest of the - parameters are shoved up the stack by one place. */ -#define QT_VARGS_ADJUST(sp) (((char *)sp)+4) - -#define QT_VARGS_DEFAULT - - -#define QT_GROW_DOWN - -#endif /* ndef QT_SPARC_H */ diff --git a/qt/md/sparc.s b/qt/md/sparc.s deleted file mode 100644 index d9bdf0c58..000000000 --- a/qt/md/sparc.s +++ /dev/null @@ -1,142 +0,0 @@ -/* sparc.s -- assembly support for the `qt' thread building kit. */ - -/* - * QuickThreads -- Threads-building toolkit. - * Copyright (c) 1993 by David Keppel - * - * Permission to use, copy, modify and distribute this software and - * its documentation for any purpose and without fee is hereby - * granted, provided that the above copyright notice and this notice - * appear in all copies. This software is provided as a - * proof-of-concept and for demonstration purposes; there is no - * representation about the suitability of this software for any - * purpose. - */ - -/* #include <machine/trap.h> */ - - .text - .align 4 - .global qt_blocki - .global qt_block - .global qt_abort - .global qt_start - .global qt_vstart - -/* Register assignment: -// %o0: incoming `helper' function to call after cswap -// also used as outgoing sp of old thread (qt_t *) -// %o1, %o2: -// parameters to `helper' function called after cswap -// %o3: sp of new thread -// %o5: tmp used to save old thread sp, while using %o0 -// to call `helper' f() after cswap. -// -// -// Aborting a thread is easy if there are no cached register window -// frames: just switch to the new stack and away we go. If there are -// cached register window frames they must all be written back to the -// old stack before we move to the new stack. If we fail to do the -// writeback then the old stack memory can be written with register -// window contents e.g., after the stack memory has been freed and -// reused. -// -// If you don't believe this, try setting the frame pointer to zero -// once we're on the new stack. This will not affect correctnes -// otherwise because the frame pointer will eventually get reloaded w/ -// the new thread's frame pointer. But it will be zero briefly before -// the reload. You will eventually (100,000 cswaps later on a small -// SPARC machine that I tried) get an illegal instruction trap from -// the kernel trying to flush a cached window to location 0x0. -// -// Solution: flush windows before switching stacks, which invalidates -// all the other register windows. We could do the trap -// conditionally: if we're in the lowest frame of a thread, the fp is -// zero already so we know there's nothing cached. But we expect most -// aborts will be done from a first function that does a `save', so we -// will rarely save anything and always pay the cost of testing to see -// if we should flush. -// -// All floating-point registers are caller-save, so this routine -// doesn't need to do anything to save and restore them. -// -// `qt_block' and `qt_blocki' return the same value as the value -// returned by the helper function. We get this ``for free'' -// since we don't touch the return value register between the -// return from the helper function and return from qt_block{,i}. -*/ - -qt_block: -qt_blocki: - sub %sp, 8, %sp /* Allocate save area for return pc. */ - st %o7, [%sp+64] /* Save return pc. */ -qt_abort: - ta 0x03 /* Save locals and ins. */ - mov %sp, %o5 /* Remember old sp w/o chng ins/locals. */ - sub %o3, 64, %sp /* Allocate kwsa, switch stacks. */ - call %o0, 0 /* Call `helper' routine. */ - mov %o5, %o0 /* Pass old thread to qt_after_t() */ - /* .. along w/ args in %o1 & %o2. */ - - /* Restore callee-save regs. The kwsa - // is on this stack, so offset all - // loads by sizeof(kwsa), 64 bytes. - */ - ldd [%sp+ 0+64], %l0 - ldd [%sp+ 8+64], %l2 - ldd [%sp+16+64], %l4 - ldd [%sp+24+64], %l6 - ldd [%sp+32+64], %i0 - ldd [%sp+40+64], %i2 - ldd [%sp+48+64], %i4 - ldd [%sp+56+64], %i6 - ld [%sp+64+64], %o7 /* Restore return pc. */ - - retl /* Return to address in %o7. */ - add %sp, 72, %sp /* Deallocate kwsa, ret pc area. */ - - -/* The function calling conventions say there has to be a 1-word area -// in the caller's stack to hold a pointer to space for aggregate -// return values. It also says there should be a 6-word area to hold -// %o0..%o5 if the callee wants to save them (why? I don't know...) -// Round up to 8 words to maintain alignment. -// -// Parameter values were stored in callee-save regs and are moved to -// the parameter registers. -*/ -qt_start: - mov %i1, %o0 /* `pu': Set up args to `only'. */ - mov %i2, %o1 /* `pt'. */ - mov %i4, %o2 /* `userf'. */ - call %i5, 0 /* Call client function. */ - sub %sp, 32, %sp /* Allocate 6-word callee space. */ - - call qt_error, 0 /* `only' erroniously returned. */ - nop - - -/* Same comments as `qt_start' about allocating rounded-up 7-word -// save areas. */ - -qt_vstart: - sub %sp, 32, %sp /* Allocate 7-word callee space. */ - call %i5, 0 /* call `startup'. */ - mov %i2, %o0 /* .. with argument `pt'. */ - - add %sp, 32, %sp /* Use 7-word space in varargs. */ - ld [%sp+ 4+64], %o0 /* Load arg0 ... */ - ld [%sp+ 8+64], %o1 - ld [%sp+12+64], %o2 - ld [%sp+16+64], %o3 - ld [%sp+20+64], %o4 - call %i4, 0 /* Call `userf'. */ - ld [%sp+24+64], %o5 - - /* Use 6-word space in varargs. */ - mov %o0, %o1 /* Pass return value from userf */ - call %i3, 0 /* .. when call `cleanup. */ - mov %i2, %o0 /* .. along with argument `pt'. */ - - call qt_error, 0 /* `cleanup' erroniously returned. */ - nop diff --git a/qt/md/sparc_b.s b/qt/md/sparc_b.s deleted file mode 100644 index 08351d76d..000000000 --- a/qt/md/sparc_b.s +++ /dev/null @@ -1,106 +0,0 @@ -/* - * QuickThreads -- Threads-building toolkit. - * Copyright (c) 1993 by David Keppel - * - * Permission to use, copy, modify and distribute this software and - * its documentation for any purpose and without fee is hereby - * granted, provided that the above copyright notice and this notice - * appear in all copies. This software is provided as a - * proof-of-concept and for demonstration purposes; there is no - * representation about the suitability of this software for any - * purpose. - */ - - .globl b_call_reg - .globl b_call_imm - .globl b_add - .globl b_load - -b_null: - retl - nop - -b_call_reg: - sethi %hi(b_null),%o4 - or %o4,%lo(b_null),%o4 - add %o7,%g0, %o3 -L0: - call %o4 - nop - call %o4 - nop - call %o4 - nop - call %o4 - nop - call %o4 - nop - - subcc %o0,1,%o0 - bg L0 - nop - add %o3,%g0, %o7 - retl - nop - -b_call_imm: - sethi %hi(b_null),%o4 - or %o4,%lo(b_null),%o4 - add %o7,%g0, %o3 -L1: - call b_null - call b_null - call b_null - call b_null - call b_null - - subcc %o0,1,%o0 - bg L0 - nop - add %o3,%g0, %o7 - retl - nop - - -b_add: - add %o0,%g0,%o1 - add %o0,%g0,%o2 - add %o0,%g0,%o3 - add %o0,%g0,%o4 -L2: - sub %o0,5,%o0 - sub %o1,5,%o1 - sub %o2,5,%o2 - sub %o3,5,%o3 - sub %o4,5,%o4 - - subcc %o0,5,%o0 - sub %o1,5,%o1 - sub %o2,5,%o2 - sub %o3,5,%o3 - sub %o4,5,%o4 - - bg L2 - nop - retl - nop - - -b_load: - ld [%sp+ 0], %g0 -L3: - ld [%sp+ 4],%g0 - ld [%sp+ 8],%g0 - ld [%sp+12],%g0 - ld [%sp+16],%g0 - ld [%sp+20],%g0 - ld [%sp+24],%g0 - ld [%sp+28],%g0 - ld [%sp+32],%g0 - ld [%sp+36],%g0 - - subcc %o0,10,%o0 - bg L3 - ld [%sp+ 0],%g0 - retl - nop diff --git a/qt/md/vax.h b/qt/md/vax.h deleted file mode 100644 index 1a5af0f2b..000000000 --- a/qt/md/vax.h +++ /dev/null @@ -1,130 +0,0 @@ -/* - * QuickThreads -- Threads-building toolkit. - * Copyright (c) 1993 by David Keppel - * - * Permission to use, copy, modify and distribute this software and - * its documentation for any purpose and without fee is hereby - * granted, provided that the above copyright notice and this notice - * appear in all copies. This software is provided as a - * proof-of-concept and for demonstration purposes; there is no - * representation about the suitability of this software for any - * purpose. - */ - -#ifndef QT_VAX_H -#define QT_VAX_H - -typedef unsigned long qt_word_t; - -/* Thread's initial stack layout on the VAX: - - non-varargs: - - +--- - | arg[2] === `userf' on startup - | arg[1] === `pt' on startup - | arg[0] === `pu' on startup - | ... === `only' on startup. - +--- - | ret pc === `qt_start' on startup - | fp === 0 on startup - | ap === 0 on startup - | <mask> - | 0 (handler) <--- qt_t.sp - +--- - - When a non-varargs thread is started, it ``returns'' to the start - routine, which calls the client's `only' function. - - The varargs case is clearly bad code. The various values should be - stored in a save area and snarfed in to callee-save registers on - startup. However, it's too painful to figure out the register - mask (right now), so do it the slow way. - - +--- - | arg[n-1] - | .. - | arg[0] - | nargs - +--- - | === `cleanup' - | === `vuserf' - | === `startup' - | === `pt' - +--- - | ret pc === `qt_start' on startup - | fp === 0 on startup - | ap === 0 on startup - | <mask> - | 0 (handler) <--- qt_t.sp - +--- - - When a varargs thread is started, it ``returns'' to the `qt_vstart' - startup code. The startup code pops all the extra arguments, then - calls the appropriate functions. */ - - -/* What to do to start a thread running. */ -extern void qt_start (void); -extern void qt_vstart (void); - - -/* Initial call frame for non-varargs and varargs cases. */ -#define QT_STKBASE (10 * 4) -#define QT_VSTKBASE (9 * 4) - - -/* Stack "must be" 4-byte aligned. (Actually, no, but it's - easiest and probably fastest to do so.) */ - -#define QT_STKALIGN (4) - - -/* Where to place various arguments. */ -#define QT_ONLY_INDEX (5) -#define QT_USER_INDEX (8) -#define QT_ARGT_INDEX (7) -#define QT_ARGU_INDEX (6) - -#define QT_VSTARTUP_INDEX (6) -#define QT_VUSERF_INDEX (7) -#define QT_VCLEANUP_INDEX (8) -#define QT_VARGT_INDEX (5) - - -/* Stack grows down. The top of the stack is the first thing to - pop off (predecrement, postincrement). */ -#define QT_GROW_DOWN - - -extern void qt_error (void); - -#define QT_VAX_GMASK_NOREGS (0) - -/* Push on the error return address, null termination to call chains, - number of arguments to `only', register save mask (save no - registers). */ - -#define QT_ARGS_MD(sto) \ - (QT_SPUT (sto, 0, 0), \ - QT_SPUT (sto, 1, QT_VAX_GMASK_NOREGS), \ - QT_SPUT (sto, 2, 0), \ - QT_SPUT (sto, 3, 0), \ - QT_SPUT (sto, 4, qt_start)) - -#define QT_VARGS_MD0(sto, nbytes) \ - (QT_SPUT (sto, (-(nbytes)/4)-1, (nbytes)/4), \ - ((char *)(((sto)-4) - QT_STKROUNDUP(nbytes)))) - -#define QT_VARGS_ADJUST(sp) ((char *)sp + 4) - -#define QT_VARGS_MD1(sto) \ - (QT_SPUT (sto, 0, 0), \ - QT_SPUT (sto, 1, QT_VAX_GMASK_NOREGS), \ - QT_SPUT (sto, 2, 0), \ - QT_SPUT (sto, 3, 0), \ - QT_SPUT (sto, 4, qt_vstart)) - -#define QT_VARGS_DEFAULT - -#endif /* QT_VAX_H */ diff --git a/qt/md/vax.s b/qt/md/vax.s deleted file mode 100644 index fed03f043..000000000 --- a/qt/md/vax.s +++ /dev/null @@ -1,69 +0,0 @@ -/* - * QuickThreads -- Threads-building toolkit. - * Copyright (c) 1993 by David Keppel - * - * Permission to use, copy, modify and distribute this software and - * its documentation for any purpose and without fee is hereby - * granted, provided that the above copyright notice and this notice - * appear in all copies. This software is provided as a - * proof-of-concept and for demonstration purposes; there is no - * representation about the suitability of this software for any - * purpose. - */ - - .text - - .globl _qt_abort - .globl _qt_block - .globl _qt_blocki - .globl _qt_start - .globl _qt_vstart - - -/* -// Calls to these routines have the signature -// -// void *block (func, arg1, arg2, newsp) -// -// Since the prologue saves 5 registers, nargs, pc, fp, ap, mask, and -// a condition handler (at sp+0), the first argument is 40=4*10 bytes -// offset from the stack pointer. -*/ -_qt_block: -_qt_blocki: -_qt_abort: - .word 0x7c0 /* Callee-save mask: 5 registers. */ - movl 56(sp),r1 /* Get stack pointer of new thread. */ - movl 52(sp),-(r1) /* Push arg2 */ - movl 48(sp),-(r1) /* Push arg1 */ - movl sp,-(r1) /* Push arg0 */ - - movl 44(sp),r0 /* Get helper to call. */ - movl r1,sp /* Move to new thread's stack. */ - addl3 sp,$12,fp /* .. including the frame pointer. */ - calls $3,(r0) /* Call helper. */ - - ret - -_qt_start: - movl (sp)+,r0 /* Get `only'. */ - calls $3,(r0) /* Call `only'. */ - calls $0,_qt_error /* `only' erroniously returned. */ - - -_qt_vstart: - movl (sp)+,r10 /* Get `pt'. */ - movl (sp)+,r9 /* Get `startup'. */ - movl (sp)+,r8 /* Get `vuserf'. */ - movl (sp)+,r7 /* Get `cleanup'. */ - - pushl r10 /* Push `qt'. */ - calls $1,(r9) /* Call `startup', pop `qt' on return. */ - - calls (sp)+,(r8) /* Call user's function. */ - - pushl r0 /* Push `vuserf_retval'. */ - pushl r10 /* Push `qt'. */ - calls $2,(r7) /* Call `cleanup', never return. */ - - calls $0,_qt_error /* `cleanup' erroniously returned. */ diff --git a/qt/md/vax_b.s b/qt/md/vax_b.s deleted file mode 100644 index 2db2d4fec..000000000 --- a/qt/md/vax_b.s +++ /dev/null @@ -1,92 +0,0 @@ -/* - * QuickThreads -- Threads-building toolkit. - * Copyright (c) 1993 by David Keppel - * - * Permission to use, copy, modify and distribute this software and - * its documentation for any purpose and without fee is hereby - * granted, provided that the above copyright notice and this notice - * appear in all copies. This software is provided as a - * proof-of-concept and for demonstration purposes; there is no - * representation about the suitability of this software for any - * purpose. - */ - - .text - .globl _b_call_reg - .globl _b_call_imm - .globl _b_add - .globl _b_load - -_b_null: - .word 0x0 - ret - -_b_call_reg: - .word 0x0 - movl 4(ap),r0 - moval _b_null,r1 -L0: - calls $0,(r1) - calls $0,(r1) - calls $0,(r1) - calls $0,(r1) - calls $0,(r1) - - subl2 $5,r0 - bgtr L0 - ret - - -_b_call_imm: - .word 0x0 - movl 4(ap),r0 -L1: - calls $0,_b_null - calls $0,_b_null - calls $0,_b_null - calls $0,_b_null - calls $0,_b_null - - subl2 $5,r0 - bgtr L1 - ret - - -_b_add: - .word 0x0 - movl 4(ap),r0 -L2: - subl2 $1,r0 - subl2 $1,r0 - subl2 $1,r0 - subl2 $1,r0 - subl2 $1,r0 - - subl2 $1,r0 - subl2 $1,r0 - subl2 $1,r0 - subl2 $1,r0 - subl2 $1,r0 - - bgtr L2 - ret - - -_b_load: - .word 0x0 - movl 4(ap),r0 -L3: - movl 0(sp),r1 - movl 4(sp),r1 - movl 8(sp),r1 - movl 12(sp),r1 - movl 16(sp),r1 - movl 20(sp),r1 - movl 24(sp),r1 - movl 28(sp),r1 - movl 32(sp),r1 - movl 36(sp),r1 - - subl2 $1,r0 - bgtr L3 - ret |