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| author |   Laurent Vivier <laurent@vivier.eu> | 2011-02-13 23:37:34 +0100 |
|---|---|---|
| committer |   Riku Voipio <riku.voipio@nokia.com> | 2011-02-17 11:46:34 +0200 |
| commit | c2e3dee6e03527baf8698698cce76b1a3174969a (patch) | |
| tree | 40bea1193141b00fba2e0e7827932a9a0861a2f5 /cpu-defs.h | |
| parent | linux-user: Support the epoll syscalls (diff) | |
| download | qemu-kvm-c2e3dee6e03527baf8698698cce76b1a3174969a.tar.gz qemu-kvm-c2e3dee6e03527baf8698698cce76b1a3174969a.tar.bz2 qemu-kvm-c2e3dee6e03527baf8698698cce76b1a3174969a.zip | |
linux-user: Define target alignment size
Datatype alignment can be found using following application:
int main(void)
{
printf("alignof(short) %ld\n", __alignof__(short));
printf("alignof(int) %ld\n", __alignof__(int));
printf("alignof(long) %ld\n", __alignof__(long));
printf("alignof(long long) %ld\n", __alignof__(long long));
}
This patch includes following alignments:
i386
alignof(short) 2
alignof(int) 4
alignof(long) 4
alignof(long long) 8
x86_64
alignof(short) 2
alignof(int) 4
alignof(long) 8
alignof(long long) 8
arm
alignof(short) 2
alignof(int) 4
alignof(long) 4
alignof(long long) 4
m68k (680x0)
alignof(short) 2
alignof(int) 2
alignof(long) 2
alignof(long long) 2
mips
alignof(short) 2
alignof(int) 4
alignof(long) 4
alignof(long long) 8
ppc
alignof(short) 2
alignof(int) 4
alignof(long) 4
alignof(long long) 8
for other targets, use by default (2,4,4,8).
Please, update for your favorite target...
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Riku Voipio <riku.voipio@nokia.com>
Diffstat (limited to 'cpu-defs.h')
| -rw-r--r-- | cpu-defs.h | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/cpu-defs.h b/cpu-defs.h index db809ed46..2b59fa6fb 100644 --- a/cpu-defs.h +++ b/cpu-defs.h @@ -37,16 +37,22 @@ #define TARGET_LONG_SIZE (TARGET_LONG_BITS / 8) +typedef int16_t target_short __attribute__ ((aligned(TARGET_SHORT_ALIGNMENT))); +typedef uint16_t target_ushort __attribute__((aligned(TARGET_SHORT_ALIGNMENT))); +typedef int32_t target_int __attribute__((aligned(TARGET_INT_ALIGNMENT))); +typedef uint32_t target_uint __attribute__((aligned(TARGET_INT_ALIGNMENT))); +typedef int64_t target_llong __attribute__((aligned(TARGET_LLONG_ALIGNMENT))); +typedef uint64_t target_ullong __attribute__((aligned(TARGET_LLONG_ALIGNMENT))); /* target_ulong is the type of a virtual address */ #if TARGET_LONG_SIZE == 4 -typedef int32_t target_long; -typedef uint32_t target_ulong; +typedef int32_t target_long __attribute__((aligned(TARGET_LONG_ALIGNMENT))); +typedef uint32_t target_ulong __attribute__((aligned(TARGET_LONG_ALIGNMENT))); #define TARGET_FMT_lx "%08x" #define TARGET_FMT_ld "%d" #define TARGET_FMT_lu "%u" #elif TARGET_LONG_SIZE == 8 -typedef int64_t target_long; -typedef uint64_t target_ulong; +typedef int64_t target_long __attribute__((aligned(TARGET_LONG_ALIGNMENT))); +typedef uint64_t target_ulong __attribute__((aligned(TARGET_LONG_ALIGNMENT))); #define TARGET_FMT_lx "%016" PRIx64 #define TARGET_FMT_ld "%" PRId64 #define TARGET_FMT_lu "%" PRIu64 |