mirror/guile
mirror/guile
1
Fork 0
mirror of https://git.savannah.gnu.org/git/guile.git synced 2025-06-14 23:50:19 +02:00
Code Activity

Uncomment run-time objcode alignment check.

Browse source 
This should now work thanks to the changes in
28b119ee3d ("make sure all programs are
8-byte aligned").  This commit is a follow-up to
ec99fe8ecb ("Add FIXMEs about misaligned
objcode-metas.").

* libguile/objcodes.c (scm_c_make_objcode_slice): Uncomment assertion
  that checks for proper alignment of PTR.

* module/language/assembly/compile-bytecode.scm (write-bytecode): Update
  comment about META's alignment.
This commit is contained in:
Ludovic Courtès 2009-08-13 23:59:51 +02:00
parent b3ce13b667
commit e3c9c676ae
2 changed files with 7 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

8
libguile/objcodes.c
View file

@ -119,10 +119,10 @@ scm_c_make_objcode_slice (SCM parent, const scm_t_uint8 *ptr)
scm_from_uint32 (parent_data->len),
scm_from_uint32 (parent_data->metalen)));
#if 0
/* FIXME: We currently generate bytecode where the objcode-meta isn't
suitable aligned, which is an issue on some arches (e.g., SPARC). */
assert ((((uintptr_t) ptr) & (__alignof__ (struct scm_objcode) - 1UL)) == 0);
#ifdef __GNUC__ /* we need `__alignof__' */
/* Make sure bytecode for the objcode-meta is suitable aligned. Failing to
do so leads to SIGBUS/SIGSEGV on some arches (e.g., SPARC). */
assert ((((scm_t_bits) ptr) & (__alignof__ (struct scm_objcode) - 1UL)) == 0);
#endif
data = (struct scm_objcode*)ptr;