mii/qemu
1
0
Fork 0
mirror of https://github.com/mii443/qemu.git synced 2025-12-16 17:18:49 +00:00
Code Issues Packages Projects Releases Wiki Activity

linux-user: Define target alignment size

Browse Source 
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>
This commit is contained in:
Laurent Vivier
2011-02-13 23:37:34 +01:00
committed by Riku Voipio
parent 3b6edd1611
commit c2e3dee6e0
2 changed files with 27 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
cpu-defs.h
View File

@@ -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