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authorAndy Wingo <wingo@pobox.com>2008-10-18 19:21:44 +0200
committerAndy Wingo <wingo@pobox.com>2008-10-18 19:21:44 +0200
commit5e390de62f2355866e9bdad8b7aea4ac4080bdcd (patch)
tree9e4013d205e018aaf839e5a269a4355802720618 /libguile/vm-i-system.c
parentb3b45ac15ef508623dd9031f3c7e69dff7949801 (diff)
downloadguile-5e390de62f2355866e9bdad8b7aea4ac4080bdcd.tar.gz
fix bug in self-tail-recursion with "external" variables; other sundries
* gdbinit (pp, inst): New commands. * libguile/vm-engine.c (vm_error_not_a_pair): New error case. * libguile/vm-i-scheme.c (VM_VALIDATE_CONS): New macro -- use this instead of SCM_VALIDATE_* because SCM_VALIDATE will exit nonlocally before we have a chance to sync the regs. (car, cdr, set-car, set-cdr): Use VM_VALIDATE_CONS. * libguile/vm-i-system.c (goto/args): Bugfix: when doing a self-tail-recursion, allocate fresh externals. Fixes use of match.go. * module/system/vm/assemble.scm (dump-object!): Add some checks that we aren't dumping out values that the VM can't handle. * module/system/vm/disasm.scm (disassemble-externals): Fix rotten call to `print-info'. * oop/goops/dispatch.scm: Add a FIXME. * testsuite/Makefile.am (vm_test_files): * testsuite/t-closure4.scm (extract-symbols): New test, distilled with much effort out of match.scm. * ice-9/Makefile.am (NOCOMP_SOURCES): Re-enable compilation of match.scm. Yay!
Diffstat (limited to 'libguile/vm-i-system.c')
-rw-r--r--libguile/vm-i-system.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/libguile/vm-i-system.c b/libguile/vm-i-system.c
index fbb94c89a..2da2d4249 100644
--- a/libguile/vm-i-system.c
+++ b/libguile/vm-i-system.c
@@ -621,7 +621,13 @@ VM_DEFINE_INSTRUCTION (goto_args, "goto/args", 1, -1, 1)
/* Drop the first argument and the program itself. */
sp -= 2;
- NULLSTACK (bp->nargs + 1)
+ NULLSTACK (bp->nargs + 1);
+
+ /* Freshen the externals */
+ external = bp->external;
+ for (i = 0; i < bp->nexts; i++)
+ CONS (external, SCM_UNDEFINED, external);
+ SCM_FRAME_DATA_ADDRESS (fp)[0] = external;
/* Call itself */
ip = bp->base;