https://bugs.kde.org/show_bug.cgi?id=371668
Bug ID: 371668
Summary: ppc64 clobbering of R2 is invalid.
Product: valgrind
Version: unspecified
Platform: Other
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: general
Assignee: jsew...@acm.org
Reporter: will_schm...@vnet.ibm.com
This was recently noticed and reported via GCC bug
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78095
"
> (Powerpc)
> <li>GCC now diagnoses inline assembly that clobbers register r2.
> This has always been invalid code, and is no longer quietly
> tolerated.</li>
"
Reproducible: Always
Actual Results:
Errors reported in several spots, including:
m_debuglog.c: In function 'vgPlain_debugLog':
m_debuglog.c:228:4: error: PIC register clobbered by 'r2' in 'asm'
__asm__ volatile (
^~~~~~~
### and
In file included from ../include/pub_tool_clreq.h:34:0,
from pub_core_clreq.h:38,
from vg_preloaded.c:46:
vg_preloaded.c: In function '_vgnU_ifunc_wrapper':
../include/valgrind.h:3292:7: error: PIC register clobbered by 'r2' in 'asm'
__asm__ volatile( \
^
vg_preloaded.c:104:5: note: in expansion of macro 'CALL_FN_W_v'
CALL_FN_W_v(result, fn);
^~~~~~~~~~~
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