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Diffstat (limited to 'libguile/vm-i-system.c')
-rw-r--r--libguile/vm-i-system.c20
1 files changed, 16 insertions, 4 deletions
diff --git a/libguile/vm-i-system.c b/libguile/vm-i-system.c
index 262bb876d..e21a9109e 100644
--- a/libguile/vm-i-system.c
+++ b/libguile/vm-i-system.c
@@ -995,7 +995,7 @@ VM_DEFINE_INSTRUCTION (89, continuation_call, "continuation-call", 0, -1, 0)
VM_DEFINE_INSTRUCTION (94, partial_cont_call, "partial-cont-call", 0, -1, 0)
{
- SCM vmcont, intwinds;
+ SCM vmcont, intwinds, prevwinds;
POP (intwinds);
POP (vmcont);
SYNC_REGISTER ();
@@ -1003,7 +1003,18 @@ VM_DEFINE_INSTRUCTION (94, partial_cont_call, "partial-cont-call", 0, -1, 0)
{ finish_args = vmcont;
goto vm_error_continuation_not_rewindable;
}
- vm_reinstate_partial_continuation (vm, vmcont, intwinds, sp + 1 - fp, fp);
+ prevwinds = scm_i_dynwinds ();
+ vm_reinstate_partial_continuation (vm, vmcont, intwinds, sp + 1 - fp, fp,
+ vm_cookie);
+
+ /* Rewind prompt jmpbuffers, if any. */
+ {
+ SCM winds = scm_i_dynwinds ();
+ for (; !scm_is_eq (winds, prevwinds); winds = scm_cdr (winds))
+ if (SCM_PROMPT_P (scm_car (winds)) && SCM_PROMPT_SETJMP (scm_car (winds)))
+ break;
+ }
+
CACHE_REGISTER ();
program = SCM_FRAME_PROGRAM (fp);
CACHE_PROGRAM ();
@@ -1480,8 +1491,9 @@ VM_DEFINE_INSTRUCTION (83, prompt, "prompt", 4, 2, 0)
SYNC_REGISTER ();
/* Push the prompt onto the dynamic stack. */
- prompt = scm_c_make_prompt (k, fp, sp, ip + offset, escape_only_p, vm_cookie);
- scm_i_set_dynwinds (scm_cons (prompt, scm_i_dynwinds ()));
+ prompt = scm_c_make_prompt (k, fp, sp, ip + offset, escape_only_p, vm_cookie,
+ scm_i_dynwinds ());
+ scm_i_set_dynwinds (scm_cons (prompt, SCM_PROMPT_DYNWINDS (prompt)));
if (SCM_PROMPT_SETJMP (prompt))
{
/* The prompt exited nonlocally. Cache the regs back from the vp, and go