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* __scm.h (SCM_FENCE): Fix `asm volatile' warnings for EGCS.

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* gc.c (scm_gc_sweep): Properly properly record the size of a
freed structure.  (Thanks to Greg Harvey.)
This commit is contained in:
Jim Blandy 1999-02-12 10:13:20 +00:00
parent dcab04e112
commit 35eec7384c
2 changed files with 6 additions and 5 deletions
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9
libguile/__scm.h
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@ -285,11 +285,12 @@ extern unsigned int scm_async_clock;
However, GCC's volatile asm feature forms a barrier over which code is
never moved. So if you add...
asm volatile ("");
...to each of the DEFER_INTS and ALLOW_INTS macros, the critical code
will always remain in place. */
asm ("");
...to each of the DEFER_INTS and ALLOW_INTS macros, the critical
code will always remain in place. asm's without inputs or outputs
are implicitly volatile. */
#ifdef __GNUC__
#define SCM_FENCE asm volatile ("")
#define SCM_FENCE asm /* volatile */ ("")
#else
#define SCM_FENCE
#endif

2
libguile/gc.c
View file

@ -1113,7 +1113,7 @@ scm_gc_sweep ()
if ((SCM_CDR (vcell) == 0) || (SCM_CDR (vcell) == 1))
{
SCM *p = (SCM *) SCM_GCCDR (scmptr);
m += (p[scm_struct_i_n_words] + 7) * sizeof (SCM);
m += p[scm_struct_i_n_words] * sizeof (SCM) + 7;
/* I feel like I'm programming in BCPL here... */
free ((char *) p[scm_struct_i_ptr]);
}