motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-22 09:32:40 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

bsd-user: Always use mmap_find_vma_aligned() in target_mmap()

Browse source 
Massage target_mmap(): calculate alignment once, then
unconditionally call mmap_find_vma_aligned().

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Message-Id: <20250308122842.76377-2-philmd@linaro.org>
This commit is contained in:
Philippe Mathieu-Daudé 2025-03-07 14:02:21 +01:00
parent c9ce8a1ffd
commit 019b4e84ed
1 changed files with 4 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

9
bsd-user/mmap.c
View file

@ -489,13 +489,12 @@ abi_long target_mmap(abi_ulong start, abi_ulong len, int prot,
* before we truncate the length for mapping files below. * before we truncate the length for mapping files below.
*/ */
if (!(flags & MAP_FIXED)) { if (!(flags & MAP_FIXED)) {
abi_ulong alignment;
host_len = len + offset - host_offset; host_len = len + offset - host_offset;
host_len = HOST_PAGE_ALIGN(host_len); host_len = HOST_PAGE_ALIGN(host_len);
if ((flags & MAP_ALIGNMENT_MASK) != 0) alignment = (flags & MAP_ALIGNMENT_MASK) >> MAP_ALIGNMENT_SHIFT;
start = mmap_find_vma_aligned(real_start, host_len, start = mmap_find_vma_aligned(real_start, host_len, alignment);
(flags & MAP_ALIGNMENT_MASK) >> MAP_ALIGNMENT_SHIFT);
else
start = mmap_find_vma(real_start, host_len);
if (start == (abi_ulong)-1) { if (start == (abi_ulong)-1) {
errno = ENOMEM; errno = ENOMEM;
goto fail; goto fail;