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f704ef4460
With support for perf_regs and libdw, you can record and report call graphs for user space programs. Simply invoke perf with the --call-graph=dwarf command line option. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> [brueckner: added dwfl_thread_state_register_pc() call] Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com> Reviewed-and-tested-by: Thomas Richter <tmricht@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
63 lines
1.2 KiB
C
63 lines
1.2 KiB
C
#ifndef ARCH_PERF_REGS_H
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#define ARCH_PERF_REGS_H
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#include <stdlib.h>
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#include <linux/types.h>
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#include <../../../../arch/s390/include/uapi/asm/perf_regs.h>
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void perf_regs_load(u64 *regs);
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#define PERF_REGS_MASK ((1ULL << PERF_REG_S390_MAX) - 1)
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#define PERF_REGS_MAX PERF_REG_S390_MAX
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#define PERF_SAMPLE_REGS_ABI PERF_SAMPLE_REGS_ABI_64
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#define PERF_REG_IP PERF_REG_S390_PC
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#define PERF_REG_SP PERF_REG_S390_R15
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static inline const char *perf_reg_name(int id)
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{
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switch (id) {
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case PERF_REG_S390_R0:
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return "R0";
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case PERF_REG_S390_R1:
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return "R1";
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case PERF_REG_S390_R2:
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return "R2";
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case PERF_REG_S390_R3:
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return "R3";
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case PERF_REG_S390_R4:
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return "R4";
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case PERF_REG_S390_R5:
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return "R5";
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case PERF_REG_S390_R6:
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return "R6";
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case PERF_REG_S390_R7:
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return "R7";
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case PERF_REG_S390_R8:
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return "R8";
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case PERF_REG_S390_R9:
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return "R9";
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case PERF_REG_S390_R10:
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return "R10";
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case PERF_REG_S390_R11:
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return "R11";
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case PERF_REG_S390_R12:
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return "R12";
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case PERF_REG_S390_R13:
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return "R13";
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case PERF_REG_S390_R14:
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return "R14";
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case PERF_REG_S390_R15:
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return "R15";
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case PERF_REG_S390_MASK:
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return "MASK";
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case PERF_REG_S390_PC:
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return "PC";
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default:
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return NULL;
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}
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return NULL;
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}
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#endif /* ARCH_PERF_REGS_H */
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