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authorLudovic Courtès <ludo@gnu.org>2009-07-15 23:53:22 +0200
committerLudovic Courtès <ludo@gnu.org>2009-07-15 23:53:22 +0200
commitec99fe8ecb412e49e8e981246eb62ca46b32754b (patch)
treecf1a08b33982387cfd26053db70cb65af8edc16d /libguile
parent5bd047cefa9ffcf17751dbeda1fa56ae56f45199 (diff)
downloadguile-ec99fe8ecb412e49e8e981246eb62ca46b32754b.tar.gz
Add FIXMEs about misaligned objcode-metas.
* libguile/objcodes.c (scm_c_make_objcode_slice): Add comment about misaligned `objcode-meta'. * module/language/assembly/compile-bytecode.scm (write-bytecode): Likewise.
Diffstat (limited to 'libguile')
-rw-r--r--libguile/objcodes.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/libguile/objcodes.c b/libguile/objcodes.c
index 69e464c3b..a2105530f 100644
--- a/libguile/objcodes.c
+++ b/libguile/objcodes.c
@@ -138,6 +138,12 @@ 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);
+#endif
+
data = (struct scm_objcode*)ptr;
if (data->base + data->len + data->metalen > parent_data->base + parent_data->len + parent_data->metalen)
abort ();