diff options
Diffstat (limited to 'arch/mips/include/asm/asm.h')
| -rw-r--r-- | arch/mips/include/asm/asm.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/mips/include/asm/asm.h b/arch/mips/include/asm/asm.h index 7a23f4ed82..7d2b673bd9 100644 --- a/arch/mips/include/asm/asm.h +++ b/arch/mips/include/asm/asm.h @@ -106,6 +106,26 @@ __error: \ nop; /* + * STOP_WITH_DEBUG_EVENT - Stop code execution by triggering + * Software Debug Breakpoint. It is needed stop CPU and + * notify debugger (for example OpenOCD) about break point event. + * It should allow to simplify bootstrapping a system over JTAG. + */ +#define STOP_WITH_DEBUG_EVENT \ + /* trigger a soft breakpoint for OpenOCD */ \ + SDBBP; \ + /* position independent variant of dead loop */ \ + __error: \ + b __error; \ + nop; \ + /* Call some code from .text section. \ + * It is needed to keep same linker script for \ + * all images. */ \ + la v0, mips_dead_end; \ + jal v0; \ + nop; + +/* * FEXPORT - export definition of a function symbol */ #define FEXPORT(symbol) \ |