diff options
Diffstat (limited to 'runtime/regs.c')
| -rw-r--r-- | runtime/regs.c | 70 |
1 files changed, 68 insertions, 2 deletions
diff --git a/runtime/regs.c b/runtime/regs.c index 227a237e..d202c8aa 100644 --- a/runtime/regs.c +++ b/runtime/regs.c @@ -1,7 +1,8 @@ /* -*- linux-c -*- * Functions to access the members of pt_regs struct - * Copyright (C) 2005 Red Hat Inc. + * Copyright (C) 2005, 2007 Red Hat Inc. * Copyright (C) 2005 Intel Corporation. + * Copyright (C) 2007 Quentin Barnes. * * This file is part of systemtap, and is free software. You can * redistribute it and/or modify it under the terms of the GNU General @@ -40,7 +41,7 @@ unsigned long _stp_ret_addr (struct pt_regs *regs) return 0; #elif defined (__i386__) return regs->esp; -#elif defined (__powerpc64__) +#elif defined (__powerpc64__) || defined (__arm__) return REG_LINK(regs); #elif defined (__ia64__) return regs->b0; @@ -207,6 +208,71 @@ void _stp_print_regs(struct pt_regs * regs) _stp_printf("LR [%016lx]\n", regs->link); } +#elif defined (__arm__) + +static const char *processor_modes[]= +{ "USER_26", "FIQ_26" , "IRQ_26" , "SVC_26" , "UK4_26" , "UK5_26" , "UK6_26" , "UK7_26" , + "UK8_26" , "UK9_26" , "UK10_26", "UK11_26", "UK12_26", "UK13_26", "UK14_26", "UK15_26", + "USER_32", "FIQ_32" , "IRQ_32" , "SVC_32" , "UK4_32" , "UK5_32" , "UK6_32" , "ABT_32" , + "UK8_32" , "UK9_32" , "UK10_32", "UND_32" , "UK12_32", "UK13_32", "UK14_32", "SYS_32" +}; + + +void _stp_print_regs(struct pt_regs * regs) +{ + unsigned long flags = condition_codes(regs); + +#ifdef CONFIG_SMP + _stp_printf(" CPU: %d", smp_processor_id()); +#endif /* CONFIG_SMP */ + + _stp_printf("pc : [<%08lx>] lr : [<%08lx>]\n" + "sp : %08lx ip : %08lx fp : %08lx\n", + instruction_pointer(regs), + regs->ARM_lr, regs->ARM_sp, + regs->ARM_ip, regs->ARM_fp); + _stp_printf("r10: %08lx r9 : %08lx r8 : %08lx\n", + regs->ARM_r10, regs->ARM_r9, + regs->ARM_r8); + _stp_printf("r7 : %08lx r6 : %08lx r5 : %08lx r4 : %08lx\n", + regs->ARM_r7, regs->ARM_r6, + regs->ARM_r5, regs->ARM_r4); + _stp_printf("r3 : %08lx r2 : %08lx r1 : %08lx r0 : %08lx\n", + regs->ARM_r3, regs->ARM_r2, + regs->ARM_r1, regs->ARM_r0); + _stp_printf("Flags: %c%c%c%c", + flags & PSR_N_BIT ? 'N' : 'n', + flags & PSR_Z_BIT ? 'Z' : 'z', + flags & PSR_C_BIT ? 'C' : 'c', + flags & PSR_V_BIT ? 'V' : 'v'); + _stp_printf(" IRQs o%s FIQs o%s Mode %s%s Segment %s\n", + interrupts_enabled(regs) ? "n" : "ff", + fast_interrupts_enabled(regs) ? "n" : "ff", + processor_modes[processor_mode(regs)], + thumb_mode(regs) ? " (T)" : "", + get_fs() == get_ds() ? "kernel" : "user"); +#if CONFIG_CPU_CP15 + { + unsigned int ctrl; + __asm__ ( + " mrc p15, 0, %0, c1, c0\n" + : "=r" (ctrl)); + _stp_printf("Control: %04X\n", ctrl); + } +#ifdef CONFIG_CPU_CP15_MMU + { + unsigned int transbase, dac; + __asm__ ( + " mrc p15, 0, %0, c2, c0\n" + " mrc p15, 0, %1, c3, c0\n" + : "=r" (transbase), "=r" (dac)); + _stp_printf("Table: %08X DAC: %08X\n", + transbase, dac); + } +#endif +#endif +} + #elif defined (__s390x__) || defined (__s390__) #ifdef __s390x__ |