| commit | ddcf5a9170a0db5055259118f3090debab248126 | |
| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | |
| Wed, 9 Mar 2022 21:22:46 +0000 (9 18:22 -0300) | ||
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | |
| Tue, 30 Aug 2022 11:40:47 +0000 (30 08:40 -0300) | ||
| tree | 296a306e3904e8aa8e4eb7c8475683e89576cf95 | treesnapshot (tar.gz zip) |
| parent | 6c4ee1aba17f1e71b9ec856479260de9d362fdb6 | commitdiff |
posix: Fix macro expansion producing 'defined' has undefined behavior
The NEED_CHECK_SPEC is defined as:
#define NEED_CHECK_SPEC \
(!defined _XBS5_ILP32_OFF32 || !defined _XBS5_ILP32_OFFBIG \
|| !defined _XBS5_LP64_OFF64 || !defined _XBS5_LPBIG_OFFBIG \
|| !defined _POSIX_V6_ILP32_OFF32 || !defined _POSIX_V6_ILP32_OFFBIG \
|| !defined _POSIX_V6_LP64_OFF64 || !defined _POSIX_V6_LPBIG_OFFBIG \
|| !defined _POSIX_V7_ILP32_OFF32 || !defined _POSIX_V7_ILP32_OFFBIG \
|| !defined _POSIX_V7_LP64_OFF64 || !defined _POSIX_V7_LPBIG_OFFBIG)
Which is undefined behavior accordingly to C Standard (Preprocessing
directives, p4).
Checked on x86_64-linux-gnu.
The NEED_CHECK_SPEC is defined as:
#define NEED_CHECK_SPEC \
(!defined _XBS5_ILP32_OFF32 || !defined _XBS5_ILP32_OFFBIG \
|| !defined _XBS5_LP64_OFF64 || !defined _XBS5_LPBIG_OFFBIG \
|| !defined _POSIX_V6_ILP32_OFF32 || !defined _POSIX_V6_ILP32_OFFBIG \
|| !defined _POSIX_V6_LP64_OFF64 || !defined _POSIX_V6_LPBIG_OFFBIG \
|| !defined _POSIX_V7_ILP32_OFF32 || !defined _POSIX_V7_ILP32_OFFBIG \
|| !defined _POSIX_V7_LP64_OFF64 || !defined _POSIX_V7_LPBIG_OFFBIG)
Which is undefined behavior accordingly to C Standard (Preprocessing
directives, p4).
Checked on x86_64-linux-gnu.
| sysdeps/posix/sysconf.c | diffblobblamehistory |