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author | Rich Felker <dalias@aerifal.cx> | 2017-09-06 22:09:28 -0400 |
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committer | Rich Felker <dalias@aerifal.cx> | 2017-09-06 22:15:14 -0400 |
commit | da438ee1fc516c41ba1790cef7be551a9e244397 (patch) | |
tree | 6f0778c3e0dbca45b4bd5c19c672db995b6e3ad1 /arch/powerpc64/bits | |
parent | 8c4be3e2209d2a1d3874b8bc2b474668fcbbbac6 (diff) | |
download | musl-da438ee1fc516c41ba1790cef7be551a9e244397.tar.gz musl-da438ee1fc516c41ba1790cef7be551a9e244397.tar.xz musl-da438ee1fc516c41ba1790cef7be551a9e244397.zip |
work around incorrect EPERM from mmap syscall
under some conditions, the mmap syscall wrongly fails with EPERM instead of ENOMEM when memory is exhausted; this is probably the result of the kernel trying to fit the allocation somewhere that crosses into the kernel range or below mmap_min_addr. in any case it's a conformance bug, so work around it. for now, only handle the case of anonymous mappings with no requested address; in other cases EPERM may be a legitimate error. this indirectly fixes the possibility of malloc failing with the wrong errno value.
Diffstat (limited to 'arch/powerpc64/bits')
0 files changed, 0 insertions, 0 deletions