path: root/src/setjmp/arm
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authorRich Felker <>2017-09-06 22:09:28 -0400
committerRich Felker <>2017-09-06 22:15:14 -0400
commitda438ee1fc516c41ba1790cef7be551a9e244397 (patch)
tree6f0778c3e0dbca45b4bd5c19c672db995b6e3ad1 /src/setjmp/arm
parent8c4be3e2209d2a1d3874b8bc2b474668fcbbbac6 (diff)
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 'src/setjmp/arm')
0 files changed, 0 insertions, 0 deletions