diff options
Diffstat (limited to 'contrib/syslinux-4.02/gpxe/src/arch/i386/include/bochs.h')
-rw-r--r-- | contrib/syslinux-4.02/gpxe/src/arch/i386/include/bochs.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/contrib/syslinux-4.02/gpxe/src/arch/i386/include/bochs.h b/contrib/syslinux-4.02/gpxe/src/arch/i386/include/bochs.h new file mode 100644 index 0000000..9d090fc --- /dev/null +++ b/contrib/syslinux-4.02/gpxe/src/arch/i386/include/bochs.h @@ -0,0 +1,34 @@ +#ifndef BOCHS_H +#define BOCHS_H + +/** @file + * + * bochs breakpoints + * + * This file defines @c bochsbp, the magic breakpoint instruction that + * is incredibly useful when debugging under bochs. This file should + * never be included in production code. + * + * Use the pseudo-instruction @c bochsbp in assembly code, or the + * bochsbp() function in C code. + * + */ + +#ifdef ASSEMBLY + +/* Breakpoint for when debugging under bochs */ +#define bochsbp xchgw %bx, %bx +#define BOCHSBP bochsbp + +#else /* ASSEMBLY */ + +/** Breakpoint for when debugging under bochs */ +static inline void bochsbp ( void ) { + __asm__ __volatile__ ( "xchgw %bx, %bx" ); +} + +#endif /* ASSEMBLY */ + +#warning "bochs.h should not be included into production code" + +#endif /* BOCHS_H */ |