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author | Stefan Weil <weil@mail.berlios.de> | 2011-08-31 12:38:00 +0200 |
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committer | Blue Swirl <blauwirbel@gmail.com> | 2011-09-03 10:45:46 +0000 |
commit | 0f7fdd347514ea97b24f5f658f3ae31f9b078397 (patch) | |
tree | 399217e7c99dacf7517930d49afb123eef277397 /compiler.h | |
parent | a74cd8cc37896402a1793217d5059a0b0489155a (diff) | |
download | qemu-0f7fdd347514ea97b24f5f658f3ae31f9b078397.zip qemu-0f7fdd347514ea97b24f5f658f3ae31f9b078397.tar.gz qemu-0f7fdd347514ea97b24f5f658f3ae31f9b078397.tar.bz2 |
Add new macro QEMU_PACKED for packed C structures
A packed struct needs different gcc attributes for compilations
with MinGW compilers because glib-2.0 adds compiler flag
-mms-bitfields which modifies the packing algorithm.
Attribute gcc_struct reverses the negative effects of -mms-bitfields.
QEMU_PACKED sets this attribute and must be used for any packed
struct which is affected by -mms-bitfields.
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Diffstat (limited to 'compiler.h')
-rw-r--r-- | compiler.h | 6 |
1 files changed, 6 insertions, 0 deletions
@@ -12,6 +12,12 @@ #define QEMU_WARN_UNUSED_RESULT #endif +#if defined(_WIN32) +# define QEMU_PACKED __attribute__((gcc_struct, packed)) +#else +# define QEMU_PACKED __attribute__((packed)) +#endif + #define QEMU_BUILD_BUG_ON(x) \ typedef char qemu_build_bug_on__##__LINE__[(x)?-1:1]; |