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authorRich Felker <dalias@aerifal.cx>2015-11-02 16:37:51 -0500
committerRich Felker <dalias@aerifal.cx>2015-11-02 16:37:51 -0500
commitfda365a53074f97f3213caefe70ea13297acecb2 (patch)
tree2506ac8bfc363f5671a2be0c16a0a69c23167fdf /crt/crtn.c
parentf9ecb6bfa1dc9f93a10dad97a158e6b8334c586c (diff)
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fix mremap memory synchronization and use of variadic argument
since mremap with the MREMAP_FIXED flag is an operation that unmaps
existing mappings, it needs to use the vm lock mechanism to ensure
that any in-progress synchronization operations using vm identities
from before the call have finished.

also, the variadic argument was erroneously being read even if the
MREMAP_FIXED flag was not passed. in practice this didn't break
anything, but it's UB and in theory LTO could turn it into a hard
error.
Diffstat (limited to 'crt/crtn.c')
0 files changed, 0 insertions, 0 deletions