treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / tools / perf / arch / arm / util / unwind-libdw.c
blob36ba4c69c3c55cfec6c33a4b5cd52ee31d36f538
1 // SPDX-License-Identifier: GPL-2.0
2 #include <elfutils/libdwfl.h>
3 #include "../../util/unwind-libdw.h"
4 #include "../../util/perf_regs.h"
5 #include "../../util/event.h"
7 bool libdw__arch_set_initial_registers(Dwfl_Thread *thread, void *arg)
9 struct unwind_info *ui = arg;
10 struct regs_dump *user_regs = &ui->sample->user_regs;
11 Dwarf_Word dwarf_regs[PERF_REG_ARM_MAX];
13 #define REG(r) ({ \
14 Dwarf_Word val = 0; \
15 perf_reg_value(&val, user_regs, PERF_REG_ARM_##r); \
16 val; \
19 dwarf_regs[0] = REG(R0);
20 dwarf_regs[1] = REG(R1);
21 dwarf_regs[2] = REG(R2);
22 dwarf_regs[3] = REG(R3);
23 dwarf_regs[4] = REG(R4);
24 dwarf_regs[5] = REG(R5);
25 dwarf_regs[6] = REG(R6);
26 dwarf_regs[7] = REG(R7);
27 dwarf_regs[8] = REG(R8);
28 dwarf_regs[9] = REG(R9);
29 dwarf_regs[10] = REG(R10);
30 dwarf_regs[11] = REG(FP);
31 dwarf_regs[12] = REG(IP);
32 dwarf_regs[13] = REG(SP);
33 dwarf_regs[14] = REG(LR);
34 dwarf_regs[15] = REG(PC);
36 return dwfl_thread_state_registers(thread, 0, PERF_REG_ARM_MAX,
37 dwarf_regs);