1#include <linux/kernel.h> 2#include <elfutils/libdwfl.h> 3#include "../../util/unwind-libdw.h" 4#include "../../util/perf_regs.h" 5#include "../../util/event.h" 6#include "dwarf-regs-table.h" 7 8 9bool libdw__arch_set_initial_registers(Dwfl_Thread *thread, void *arg) 10{ 11 struct unwind_info *ui = arg; 12 struct regs_dump *user_regs = &ui->sample->user_regs; 13 Dwarf_Word dwarf_regs[ARRAY_SIZE(s390_dwarf_regs)]; 14 15#define REG(r) ({ \ 16 Dwarf_Word val = 0; \ 17 perf_reg_value(&val, user_regs, PERF_REG_S390_##r); \ 18 val; \ 19}) 20 /* 21 * For DWARF register mapping details, 22 * see also perf/arch/s390/include/dwarf-regs-table.h 23 */ 24 dwarf_regs[0] = REG(R0); 25 dwarf_regs[1] = REG(R1); 26 dwarf_regs[2] = REG(R2); 27 dwarf_regs[3] = REG(R3); 28 dwarf_regs[4] = REG(R4); 29 dwarf_regs[5] = REG(R5); 30 dwarf_regs[6] = REG(R6); 31 dwarf_regs[7] = REG(R7); 32 dwarf_regs[8] = REG(R8); 33 dwarf_regs[9] = REG(R9); 34 dwarf_regs[10] = REG(R10); 35 dwarf_regs[11] = REG(R11); 36 dwarf_regs[12] = REG(R12); 37 dwarf_regs[13] = REG(R13); 38 dwarf_regs[14] = REG(R14); 39 dwarf_regs[15] = REG(R15); 40 41 dwarf_regs[16] = REG(FP0); 42 dwarf_regs[17] = REG(FP2); 43 dwarf_regs[18] = REG(FP4); 44 dwarf_regs[19] = REG(FP6); 45 dwarf_regs[20] = REG(FP1); 46 dwarf_regs[21] = REG(FP3); 47 dwarf_regs[22] = REG(FP5); 48 dwarf_regs[23] = REG(FP7); 49 dwarf_regs[24] = REG(FP8); 50 dwarf_regs[25] = REG(FP10); 51 dwarf_regs[26] = REG(FP12); 52 dwarf_regs[27] = REG(FP14); 53 dwarf_regs[28] = REG(FP9); 54 dwarf_regs[29] = REG(FP11); 55 dwarf_regs[30] = REG(FP13); 56 dwarf_regs[31] = REG(FP15); 57 58 dwarf_regs[64] = REG(MASK); 59 dwarf_regs[65] = REG(PC); 60 61 dwfl_thread_state_register_pc(thread, dwarf_regs[65]); 62 return dwfl_thread_state_registers(thread, 0, 32, dwarf_regs); 63} 64