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util: Share qemu_try_memalign() implementation between POSIX and Windows

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The qemu_try_memalign() functions for POSIX and Windows used to be
significantly different, but these days they are identical except for
the actual allocation function called, and the POSIX version already
has to have ifdeffery for different allocation functions.

Move to a single implementation in memalign.c, which uses the Windows
_aligned_malloc if we detect that function in meson.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220226180723.1706285-7-peter.maydell@linaro.org
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
This commit is contained in:
Peter Maydell 2022-02-26 18:07:20 +00:00
parent 8698343b86
commit 5c8c714a0a
4 changed files with 40 additions and 46 deletions
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17
util/oslib-win32.c
View file

@ -44,23 +44,6 @@
/* this must come after including "trace.h" */
#include <shlobj.h>
void *qemu_try_memalign(size_t alignment, size_t size)
{
void *ptr;
if (alignment < sizeof(void *)) {
alignment = sizeof(void *);
} else {
g_assert(is_power_of_2(alignment));
}
if (size == 0) {
size++;
}
ptr = _aligned_malloc(size, alignment);
trace_qemu_memalign(alignment, size, ptr);
return ptr;
}
static int get_allocation_granularity(void)
{
SYSTEM_INFO system_info;