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authorRich Felker <dalias@aerifal.cx>2017-06-15 12:54:40 -0400
committerRich Felker <dalias@aerifal.cx>2017-06-15 12:54:40 -0400
commit1c86c7f5c26dd0569df7afc23ee9866fb3f645dc (patch)
tree0d512c978c4ced20a1dd2f00d38dd44cc65a06e9 /arch/sh/crt_arch.h
parent10800088099ec4c27c1db6c613c8bbf9f76e4057 (diff)
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handle mremap failure in realloc of mmap-serviced allocations
mremap seems to always fail on nommu, and on some non-Linux implementations of the Linux syscall API, it at least fails to increase allocation size, and may fail to move (i.e. defragment) the existing mapping when shrinking it too. instead of failing realloc or leaving an over-sized allocation that may waste a large amount of memory, fallback to malloc-memcpy-free if mremap fails.
Diffstat (limited to 'arch/sh/crt_arch.h')
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