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| author | Sascha Hauer <s.hauer@pengutronix.de> | 2018-03-13 21:10:10 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2018-03-29 08:16:40 +0200 |
| commit | fa0d6412bf1d77e383f23f120688ecf495463d1e (patch) | |
| tree | 98f66fcc83f3c46634a9c1d5b54a826d701f3a82 | |
| parent | 03078d61a2163a69da7a59f77d28fe1a059c0a10 (diff) | |
| download | barebox-fa0d6412bf1d77e383f23f120688ecf495463d1e.tar.gz barebox-fa0d6412bf1d77e383f23f120688ecf495463d1e.tar.xz | |
ARM: aarch64: implement show_regs()
Do something useful in an exception and at least print the current
register contents.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| -rw-r--r-- | arch/arm/cpu/interrupts_64.c | 8 | ||||
| -rw-r--r-- | arch/arm/include/asm/ptrace.h | 19 |
2 files changed, 27 insertions, 0 deletions
diff --git a/arch/arm/cpu/interrupts_64.c b/arch/arm/cpu/interrupts_64.c index b3bd0aa5a4..ffdb87af94 100644 --- a/arch/arm/cpu/interrupts_64.c +++ b/arch/arm/cpu/interrupts_64.c @@ -30,6 +30,14 @@ */ void show_regs(struct pt_regs *regs) { + int i; + + printf("elr: %016lx lr : %016lx\n", regs->elr, regs->regs[30]); + + for (i = 0; i < 29; i += 2) + printf("x%-2d: %016lx x%-2d: %016lx\n", + i, regs->regs[i], i + 1, regs->regs[i + 1]); + printf("\n"); } static void __noreturn do_exception(struct pt_regs *pt_regs) diff --git a/arch/arm/include/asm/ptrace.h b/arch/arm/include/asm/ptrace.h index 6520a0a73a..7fbd8d9b6f 100644 --- a/arch/arm/include/asm/ptrace.h +++ b/arch/arm/include/asm/ptrace.h @@ -10,6 +10,23 @@ #ifndef __ASM_ARM_PTRACE_H #define __ASM_ARM_PTRACE_H +#ifdef CONFIG_CPU_64 + +#ifndef __ASSEMBLY__ + +/* + * This struct defines the way the registers are stored + * on the stack during an exception. + */ +struct pt_regs { + unsigned long elr; + unsigned long regs[31]; +}; + +#endif /* __ASSEMBLY__ */ + +#else /* CONFIG_CPU_64 */ + #define PTRACE_GETREGS 12 #define PTRACE_SETREGS 13 #define PTRACE_GETFPREGS 14 @@ -141,4 +158,6 @@ extern void show_regs(struct pt_regs *); #endif /* __ASSEMBLY__ */ +#endif /* CONFIG_CPU_64 */ + #endif |