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| author | Andreas Gustafsson <gson@gson.org> | 2018-01-04 19:39:36 +0200 |
|---|---|---|
| committer | Michael Tokarev <mjt@tls.msk.ru> | 2018-02-10 10:21:50 +0300 |
| commit | 9bc5a7193fb422ee53187601eba577ee5d195522 (patch) | |
| tree | 0511b1f31ac63a664f67c850aba70c8f031351f8 /util/oslib-posix.c | |
| parent | a348f64d4652d68212886019ca74825aa1667969 (diff) | |
| download | qemu-9bc5a7193fb422ee53187601eba577ee5d195522.zip qemu-9bc5a7193fb422ee53187601eba577ee5d195522.tar.gz qemu-9bc5a7193fb422ee53187601eba577ee5d195522.tar.bz2 | |
oslib-posix: check for posix_memalign in configure script
Check for the presence of posix_memalign() in the configure script,
not using "defined(_POSIX_C_SOURCE) && !defined(__sun__)". This
lets qemu use posix_memalign() on NetBSD versions that have it,
instead of falling back to valloc() which is wasteful when the
required alignment is smaller than a page.
Signed-off-by: Andreas Gustafsson <gson@gson.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Kamil Rytarowski <n54@gmx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'util/oslib-posix.c')
| -rw-r--r-- | util/oslib-posix.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/util/oslib-posix.c b/util/oslib-posix.c index 77369c9..4655bc1 100644 --- a/util/oslib-posix.c +++ b/util/oslib-posix.c @@ -105,7 +105,7 @@ void *qemu_try_memalign(size_t alignment, size_t size) alignment = sizeof(void*); } -#if defined(_POSIX_C_SOURCE) && !defined(__sun__) +#if defined(CONFIG_POSIX_MEMALIGN) int ret; ret = posix_memalign(&ptr, alignment, size); if (ret != 0) { |