X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=qemu%2Froms%2Fipxe%2Fsrc%2Farch%2Fi386%2Finclude%2Fbochs.h;fp=qemu%2Froms%2Fipxe%2Fsrc%2Farch%2Fi386%2Finclude%2Fbochs.h;h=9d090fc120df110c7d610c23a5c1ec7cbe734bdb;hb=e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb;hp=0000000000000000000000000000000000000000;hpb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;p=kvmfornfv.git diff --git a/qemu/roms/ipxe/src/arch/i386/include/bochs.h b/qemu/roms/ipxe/src/arch/i386/include/bochs.h new file mode 100644 index 000000000..9d090fc12 --- /dev/null +++ b/qemu/roms/ipxe/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 */