diff options
Diffstat (limited to 'tools/perf/arch/x86/util/unwind.c')
| -rw-r--r-- | tools/perf/arch/x86/util/unwind.c | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/tools/perf/arch/x86/util/unwind.c b/tools/perf/arch/x86/util/unwind.c new file mode 100644 index 000000000000..78d956eff96f --- /dev/null +++ b/tools/perf/arch/x86/util/unwind.c | |||
| @@ -0,0 +1,111 @@ | |||
| 1 | |||
| 2 | #include <errno.h> | ||
| 3 | #include <libunwind.h> | ||
| 4 | #include "perf_regs.h" | ||
| 5 | #include "../../util/unwind.h" | ||
| 6 | |||
| 7 | #ifdef ARCH_X86_64 | ||
| 8 | int unwind__arch_reg_id(int regnum) | ||
| 9 | { | ||
| 10 | int id; | ||
| 11 | |||
| 12 | switch (regnum) { | ||
| 13 | case UNW_X86_64_RAX: | ||
| 14 | id = PERF_REG_X86_AX; | ||
| 15 | break; | ||
| 16 | case UNW_X86_64_RDX: | ||
| 17 | id = PERF_REG_X86_DX; | ||
| 18 | break; | ||
| 19 | case UNW_X86_64_RCX: | ||
| 20 | id = PERF_REG_X86_CX; | ||
| 21 | break; | ||
| 22 | case UNW_X86_64_RBX: | ||
| 23 | id = PERF_REG_X86_BX; | ||
| 24 | break; | ||
| 25 | case UNW_X86_64_RSI: | ||
| 26 | id = PERF_REG_X86_SI; | ||
| 27 | break; | ||
| 28 | case UNW_X86_64_RDI: | ||
| 29 | id = PERF_REG_X86_DI; | ||
| 30 | break; | ||
| 31 | case UNW_X86_64_RBP: | ||
| 32 | id = PERF_REG_X86_BP; | ||
| 33 | break; | ||
| 34 | case UNW_X86_64_RSP: | ||
| 35 | id = PERF_REG_X86_SP; | ||
| 36 | break; | ||
| 37 | case UNW_X86_64_R8: | ||
| 38 | id = PERF_REG_X86_R8; | ||
| 39 | break; | ||
| 40 | case UNW_X86_64_R9: | ||
| 41 | id = PERF_REG_X86_R9; | ||
| 42 | break; | ||
| 43 | case UNW_X86_64_R10: | ||
| 44 | id = PERF_REG_X86_R10; | ||
| 45 | break; | ||
| 46 | case UNW_X86_64_R11: | ||
| 47 | id = PERF_REG_X86_R11; | ||
| 48 | break; | ||
| 49 | case UNW_X86_64_R12: | ||
| 50 | id = PERF_REG_X86_R12; | ||
| 51 | break; | ||
| 52 | case UNW_X86_64_R13: | ||
| 53 | id = PERF_REG_X86_R13; | ||
| 54 | break; | ||
| 55 | case UNW_X86_64_R14: | ||
| 56 | id = PERF_REG_X86_R14; | ||
| 57 | break; | ||
| 58 | case UNW_X86_64_R15: | ||
| 59 | id = PERF_REG_X86_R15; | ||
| 60 | break; | ||
| 61 | case UNW_X86_64_RIP: | ||
| 62 | id = PERF_REG_X86_IP; | ||
| 63 | break; | ||
| 64 | default: | ||
| 65 | pr_err("unwind: invalid reg id %d\n", regnum); | ||
| 66 | return -EINVAL; | ||
| 67 | } | ||
| 68 | |||
| 69 | return id; | ||
| 70 | } | ||
| 71 | #else | ||
| 72 | int unwind__arch_reg_id(int regnum) | ||
| 73 | { | ||
| 74 | int id; | ||
| 75 | |||
| 76 | switch (regnum) { | ||
| 77 | case UNW_X86_EAX: | ||
| 78 | id = PERF_REG_X86_AX; | ||
| 79 | break; | ||
| 80 | case UNW_X86_EDX: | ||
| 81 | id = PERF_REG_X86_DX; | ||
| 82 | break; | ||
| 83 | case UNW_X86_ECX: | ||
| 84 | id = PERF_REG_X86_CX; | ||
| 85 | break; | ||
| 86 | case UNW_X86_EBX: | ||
| 87 | id = PERF_REG_X86_BX; | ||
| 88 | break; | ||
| 89 | case UNW_X86_ESI: | ||
| 90 | id = PERF_REG_X86_SI; | ||
| 91 | break; | ||
| 92 | case UNW_X86_EDI: | ||
| 93 | id = PERF_REG_X86_DI; | ||
| 94 | break; | ||
| 95 | case UNW_X86_EBP: | ||
| 96 | id = PERF_REG_X86_BP; | ||
| 97 | break; | ||
| 98 | case UNW_X86_ESP: | ||
| 99 | id = PERF_REG_X86_SP; | ||
| 100 | break; | ||
| 101 | case UNW_X86_EIP: | ||
| 102 | id = PERF_REG_X86_IP; | ||
| 103 | break; | ||
| 104 | default: | ||
| 105 | pr_err("unwind: invalid reg id %d\n", regnum); | ||
| 106 | return -EINVAL; | ||
| 107 | } | ||
| 108 | |||
| 109 | return id; | ||
| 110 | } | ||
| 111 | #endif /* ARCH_X86_64 */ | ||