diff options
Diffstat (limited to 'arch/riscv/include/asm/kgdb.h')
| -rw-r--r-- | arch/riscv/include/asm/kgdb.h | 22 |
1 files changed, 10 insertions, 12 deletions
diff --git a/arch/riscv/include/asm/kgdb.h b/arch/riscv/include/asm/kgdb.h index 46677daf708b..78b18e2fd771 100644 --- a/arch/riscv/include/asm/kgdb.h +++ b/arch/riscv/include/asm/kgdb.h @@ -3,33 +3,30 @@ #ifndef __ASM_KGDB_H_ #define __ASM_KGDB_H_ +#include <linux/build_bug.h> + #ifdef __KERNEL__ #define GDB_SIZEOF_REG sizeof(unsigned long) -#define DBG_MAX_REG_NUM (36) -#define NUMREGBYTES ((DBG_MAX_REG_NUM) * GDB_SIZEOF_REG) +#define DBG_MAX_REG_NUM 36 +#define NUMREGBYTES (DBG_MAX_REG_NUM * GDB_SIZEOF_REG) #define CACHE_FLUSH_IS_SAFE 1 #define BUFMAX 2048 +static_assert(BUFMAX > NUMREGBYTES, + "As per KGDB documentation, BUFMAX must be larger than NUMREGBYTES"); #ifdef CONFIG_RISCV_ISA_C #define BREAK_INSTR_SIZE 2 #else #define BREAK_INSTR_SIZE 4 #endif -#ifndef __ASSEMBLY__ +#ifndef __ASSEMBLER__ +void arch_kgdb_breakpoint(void); extern unsigned long kgdb_compiled_break; -static inline void arch_kgdb_breakpoint(void) -{ - asm(".global kgdb_compiled_break\n" - ".option norvc\n" - "kgdb_compiled_break: ebreak\n" - ".option rvc\n"); -} - -#endif /* !__ASSEMBLY__ */ +#endif /* !__ASSEMBLER__ */ #define DBG_REG_ZERO "zero" #define DBG_REG_RA "ra" @@ -104,6 +101,7 @@ static inline void arch_kgdb_breakpoint(void) #define DBG_REG_STATUS_OFF 33 #define DBG_REG_BADADDR_OFF 34 #define DBG_REG_CAUSE_OFF 35 +/* NOTE: increase DBG_MAX_REG_NUM if you add more values here. */ extern const char riscv_gdb_stub_feature[64]; |