Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / ipxe / src / arch / i386 / include / setjmp.h

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 (file)
index 0000000..5d3c11b
--- /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 */