diff options
| author |   Yang Zhang <yang.z.zhang@intel.com> | 2015-08-28 09:58:54 +0800 |
|---|---|---|
| committer | Yang Zhang <yang.z.zhang@intel.com> | 2015-09-01 12:44:00 +0800 |
| commit | e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch) | |
| tree | 66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/ipxe/src/arch/i386/include/setjmp.h | |
| parent | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff) | |
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/roms/ipxe/src/arch/i386/include/setjmp.h')
| -rw-r--r-- | qemu/roms/ipxe/src/arch/i386/include/setjmp.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/qemu/roms/ipxe/src/arch/i386/include/setjmp.h b/qemu/roms/ipxe/src/arch/i386/include/setjmp.h new file mode 100644 index 000000000..5d3c11b69 --- /dev/null +++ b/qemu/roms/ipxe/src/arch/i386/include/setjmp.h @@ -0,0 +1,40 @@ +#ifndef ETHERBOOT_SETJMP_H +#define ETHERBOOT_SETJMP_H + +FILE_LICENCE ( GPL2_OR_LATER ); + +#include <stdint.h> +#include <realmode.h> + +/** A jump buffer */ +typedef struct { + uint32_t retaddr; + uint32_t ebx; + uint32_t esp; + uint32_t ebp; + uint32_t esi; + uint32_t edi; +} jmp_buf[1]; + +/** A real-mode-extended jump buffer */ +typedef struct { + jmp_buf env; + uint16_t rm_ss; + uint16_t rm_sp; +} rmjmp_buf[1]; + +extern int __asmcall setjmp ( jmp_buf env ); +extern void __asmcall longjmp ( jmp_buf env, int val ); + +#define rmsetjmp( _env ) ( { \ + (_env)->rm_ss = rm_ss; \ + (_env)->rm_sp = rm_sp; \ + setjmp ( (_env)->env ); } ) \ + +#define rmlongjmp( _env, _val ) do { \ + rm_ss = (_env)->rm_ss; \ + rm_sp = (_env)->rm_sp; \ + longjmp ( (_env)->env, (_val) ); \ + } while ( 0 ) + +#endif /* ETHERBOOT_SETJMP_H */ |