https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64914
Tobias Burnus <burnus at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |dodji at gcc dot gnu.org,
| |dvyukov at gcc dot gnu.org,
| |jakub at gcc dot gnu.org,
| |kcc at gcc dot gnu.org
Component|c++ |sanitizer
Summary|With -g3: |[UBSAN/bootstrap-ubsan]
|libiberty/md5.c:336:7: |With -g3:
|runtime error: load of |libiberty/md5.c:336:7:
|misaligned address for |runtime error: load of
|type 'const md5_uint32', |misaligned address for
|which requires 4 byte |type 'const md5_uint32',
|alignment |which requires 4 byte
| |alignment
--- Comment #1 from Tobias Burnus <burnus at gcc dot gnu.org> ---
The run-time error occurs for libiberty/md5.c:336 to 350, which look like:
OP (B, C, D, A, 22, (md5_uint32) 0x49b40821);
with definitions:
md5_uint32 A = ctx->A;
md5_uint32 B = ctx->B;
md5_uint32 C = ctx->C;
md5_uint32 D = ctx->D;
#define OP(a, b, c, d, s, T) \
do \
{ \
a += FF (b, c, d) + (*cwp++ = SWAP (*words)) + T; \
++words; \
CYCLIC (a, s); \
a += b; \
} \
while (0)
At a glance, the code looks fine.
