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Undef _TIME_BITS along with _FILE_OFFSET_BITS

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This change is identical to
26800a2c7e7996dc773b4e990dd5cca41c45e1a9 ("[sanitizer] Undef
_TIME_BITS along with _FILE_OFFSET_BITS on Linux"), but for
sanitizer_procmaps_solaris.cpp.

Indeed, even though sanitizer_procmaps_solaris.cpp is Solaris
specific, it also gets built on Linux platforms. It also includes
sanitizer_platform.h, which also ends up including features-time64.h,
causing a build failure on 32-bit Linux platforms on which 64-bit
time_t is enabled by setting _TIME_BITS=64.

To fix this, we do the same change: undefine _TIME_BITS, which anyway
will cause no harm as the rest of this file is inside a
SANITIZER_SOLARIS compile-time conditional.

Fixes:

In file included from /home/thomas/buildroot/buildroot/output/host/i686-buildroot-linux-gnu/sysroot/usr/include/features.h:394,
                 from ../../../../libsanitizer/sanitizer_common/sanitizer_platform.h:25,
                 from ../../../../libsanitizer/sanitizer_common/sanitizer_procmaps_solaris.cpp:14:
/home/thomas/buildroot/buildroot/output/host/i686-buildroot-linux-gnu/sysroot/usr/include/features-time64.h:26:5: error: #error "_TIME_BITS=64 is al
lowed only with _FILE_OFFSET_BITS=64"
   26 | #   error "_TIME_BITS=64 is allowed only with _FILE_OFFSET_BITS=64"
      |     ^~~~~

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Closes: https://github.com/llvm/llvm-project/pull/99699
(cherry picked from commit a1217020da219386b29c1a5a4a217904ecf07d7d)
This commit is contained in:
Thomas Petazzoni 2024-07-19 22:22:55 +02:00 committed by Tobias Hieta
parent 7ba7d8e2f7
commit d8752671e8
1 changed files with 4 additions and 0 deletions
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4
compiler-rt/lib/sanitizer_common/sanitizer_procmaps_solaris.cpp
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@ -11,6 +11,10 @@
// Before Solaris 11.4, <procfs.h> doesn't work in a largefile environment.
#undef _FILE_OFFSET_BITS
// Avoid conflict between `_TIME_BITS` defined vs. `_FILE_OFFSET_BITS`
// undefined in some Linux configurations.
#undef _TIME_BITS
#include "sanitizer_platform.h"
#if SANITIZER_SOLARIS
# include <fcntl.h>