1 2 #include <errno.h> 3 #include <libunwind.h> 4 #include "perf_regs.h" 5 #include "../../util/unwind.h" 6 #include "../../util/debug.h" 7 8 #ifdef HAVE_ARCH_X86_64_SUPPORT 9 int libunwind__arch_reg_id(int regnum) 10 { 11 int id; 12 13 switch (regnum) { 14 case UNW_X86_64_RAX: 15 id = PERF_REG_X86_AX; 16 break; 17 case UNW_X86_64_RDX: 18 id = PERF_REG_X86_DX; 19 break; 20 case UNW_X86_64_RCX: 21 id = PERF_REG_X86_CX; 22 break; 23 case UNW_X86_64_RBX: 24 id = PERF_REG_X86_BX; 25 break; 26 case UNW_X86_64_RSI: 27 id = PERF_REG_X86_SI; 28 break; 29 case UNW_X86_64_RDI: 30 id = PERF_REG_X86_DI; 31 break; 32 case UNW_X86_64_RBP: 33 id = PERF_REG_X86_BP; 34 break; 35 case UNW_X86_64_RSP: 36 id = PERF_REG_X86_SP; 37 break; 38 case UNW_X86_64_R8: 39 id = PERF_REG_X86_R8; 40 break; 41 case UNW_X86_64_R9: 42 id = PERF_REG_X86_R9; 43 break; 44 case UNW_X86_64_R10: 45 id = PERF_REG_X86_R10; 46 break; 47 case UNW_X86_64_R11: 48 id = PERF_REG_X86_R11; 49 break; 50 case UNW_X86_64_R12: 51 id = PERF_REG_X86_R12; 52 break; 53 case UNW_X86_64_R13: 54 id = PERF_REG_X86_R13; 55 break; 56 case UNW_X86_64_R14: 57 id = PERF_REG_X86_R14; 58 break; 59 case UNW_X86_64_R15: 60 id = PERF_REG_X86_R15; 61 break; 62 case UNW_X86_64_RIP: 63 id = PERF_REG_X86_IP; 64 break; 65 default: 66 pr_err("unwind: invalid reg id %d\n", regnum); 67 return -EINVAL; 68 } 69 70 return id; 71 } 72 #else 73 int libunwind__arch_reg_id(int regnum) 74 { 75 int id; 76 77 switch (regnum) { 78 case UNW_X86_EAX: 79 id = PERF_REG_X86_AX; 80 break; 81 case UNW_X86_EDX: 82 id = PERF_REG_X86_DX; 83 break; 84 case UNW_X86_ECX: 85 id = PERF_REG_X86_CX; 86 break; 87 case UNW_X86_EBX: 88 id = PERF_REG_X86_BX; 89 break; 90 case UNW_X86_ESI: 91 id = PERF_REG_X86_SI; 92 break; 93 case UNW_X86_EDI: 94 id = PERF_REG_X86_DI; 95 break; 96 case UNW_X86_EBP: 97 id = PERF_REG_X86_BP; 98 break; 99 case UNW_X86_ESP: 100 id = PERF_REG_X86_SP; 101 break; 102 case UNW_X86_EIP: 103 id = PERF_REG_X86_IP; 104 break; 105 default: 106 pr_err("unwind: invalid reg id %d\n", regnum); 107 return -EINVAL; 108 } 109 110 return id; 111 } 112 #endif /* HAVE_ARCH_X86_64_SUPPORT */ 113