diff options
| author |   Heiko Carstens <heiko.carstens@de.ibm.com> | 2016-01-19 11:23:38 +0100 |
|---|---|---|
| committer |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2017-11-16 15:06:12 +0100 |
| commit | f704ef44602fbf403e6722c7ed13f62d17e8cb20 (patch) | |
| tree | 5addd8e06c1323a71b3e9caffa2d610d63a789ff /tools/perf/arch/s390/include | |
| parent | s390/perf: add perf_regs support and user stack dump (diff) | |
| download | linux-dev-f704ef44602fbf403e6722c7ed13f62d17e8cb20.tar.xz linux-dev-f704ef44602fbf403e6722c7ed13f62d17e8cb20.zip | |
s390/perf: add support for perf_regs and libdw
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>
Diffstat (limited to 'tools/perf/arch/s390/include')
| -rw-r--r-- | tools/perf/arch/s390/include/perf_regs.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/tools/perf/arch/s390/include/perf_regs.h b/tools/perf/arch/s390/include/perf_regs.h new file mode 100644 index 000000000000..ac4b8c8c49e2 --- /dev/null +++ b/tools/perf/arch/s390/include/perf_regs.h @@ -0,0 +1,63 @@ +#ifndef ARCH_PERF_REGS_H +#define ARCH_PERF_REGS_H + +#include <stdlib.h> +#include <linux/types.h> +#include <../../../../arch/s390/include/uapi/asm/perf_regs.h> + +void perf_regs_load(u64 *regs); + +#define PERF_REGS_MASK ((1ULL << PERF_REG_S390_MAX) - 1) +#define PERF_REGS_MAX PERF_REG_S390_MAX +#define PERF_SAMPLE_REGS_ABI PERF_SAMPLE_REGS_ABI_64 + +#define PERF_REG_IP PERF_REG_S390_PC +#define PERF_REG_SP PERF_REG_S390_R15 + +static inline const char *perf_reg_name(int id) +{ + switch (id) { + case PERF_REG_S390_R0: + return "R0"; + case PERF_REG_S390_R1: + return "R1"; + case PERF_REG_S390_R2: + return "R2"; + case PERF_REG_S390_R3: + return "R3"; + case PERF_REG_S390_R4: + return "R4"; + case PERF_REG_S390_R5: + return "R5"; + case PERF_REG_S390_R6: + return "R6"; + case PERF_REG_S390_R7: + return "R7"; + case PERF_REG_S390_R8: + return "R8"; + case PERF_REG_S390_R9: + return "R9"; + case PERF_REG_S390_R10: + return "R10"; + case PERF_REG_S390_R11: + return "R11"; + case PERF_REG_S390_R12: + return "R12"; + case PERF_REG_S390_R13: + return "R13"; + case PERF_REG_S390_R14: + return "R14"; + case PERF_REG_S390_R15: + return "R15"; + case PERF_REG_S390_MASK: + return "MASK"; + case PERF_REG_S390_PC: + return "PC"; + default: + return NULL; + } + + return NULL; +} + +#endif /* ARCH_PERF_REGS_H */ |