Book a Demo!
CoCalc Logo Icon
StoreFeaturesDocsShareSupportNewsAboutPoliciesSign UpSign In
torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/tools/perf/arch/csky/util/unwind-libdw.c
26298 views
1
// SPDX-License-Identifier: GPL-2.0

2
// Copyright (C) 2019 Hangzhou C-SKY Microsystems co.,ltd.

3


4
#include <elfutils/libdwfl.h>

5
#include "perf_regs.h"

6
#include "../../util/unwind-libdw.h"

7
#include "../../util/perf_regs.h"

8
#include "../../util/event.h"

9


10
bool libdw__arch_set_initial_registers(Dwfl_Thread *thread, void *arg)

11
{

12
	struct unwind_info *ui = arg;

13
	struct regs_dump *user_regs = perf_sample__user_regs(ui->sample);

14
	Dwarf_Word dwarf_regs[PERF_REG_CSKY_MAX];

15


16
#define REG(r) ({						\

17
	Dwarf_Word val = 0;					\

18
	perf_reg_value(&val, user_regs, PERF_REG_CSKY_##r);	\

19
	val;							\

20
})

21


22
#if defined(__CSKYABIV2__)

23
	dwarf_regs[0]  = REG(A0);

24
	dwarf_regs[1]  = REG(A1);

25
	dwarf_regs[2]  = REG(A2);

26
	dwarf_regs[3]  = REG(A3);

27
	dwarf_regs[4]  = REG(REGS0);

28
	dwarf_regs[5]  = REG(REGS1);

29
	dwarf_regs[6]  = REG(REGS2);

30
	dwarf_regs[7]  = REG(REGS3);

31
	dwarf_regs[8]  = REG(REGS4);

32
	dwarf_regs[9]  = REG(REGS5);

33
	dwarf_regs[10] = REG(REGS6);

34
	dwarf_regs[11] = REG(REGS7);

35
	dwarf_regs[12] = REG(REGS8);

36
	dwarf_regs[13] = REG(REGS9);

37
	dwarf_regs[14] = REG(SP);

38
	dwarf_regs[15] = REG(LR);

39
	dwarf_regs[16] = REG(EXREGS0);

40
	dwarf_regs[17] = REG(EXREGS1);

41
	dwarf_regs[18] = REG(EXREGS2);

42
	dwarf_regs[19] = REG(EXREGS3);

43
	dwarf_regs[20] = REG(EXREGS4);

44
	dwarf_regs[21] = REG(EXREGS5);

45
	dwarf_regs[22] = REG(EXREGS6);

46
	dwarf_regs[23] = REG(EXREGS7);

47
	dwarf_regs[24] = REG(EXREGS8);

48
	dwarf_regs[25] = REG(EXREGS9);

49
	dwarf_regs[26] = REG(EXREGS10);

50
	dwarf_regs[27] = REG(EXREGS11);

51
	dwarf_regs[28] = REG(EXREGS12);

52
	dwarf_regs[29] = REG(EXREGS13);

53
	dwarf_regs[30] = REG(EXREGS14);

54
	dwarf_regs[31] = REG(TLS);

55
	dwarf_regs[32] = REG(PC);

56
#else

57
	dwarf_regs[0]  = REG(SP);

58
	dwarf_regs[1]  = REG(REGS9);

59
	dwarf_regs[2]  = REG(A0);

60
	dwarf_regs[3]  = REG(A1);

61
	dwarf_regs[4]  = REG(A2);

62
	dwarf_regs[5]  = REG(A3);

63
	dwarf_regs[6]  = REG(REGS0);

64
	dwarf_regs[7]  = REG(REGS1);

65
	dwarf_regs[8]  = REG(REGS2);

66
	dwarf_regs[9]  = REG(REGS3);

67
	dwarf_regs[10] = REG(REGS4);

68
	dwarf_regs[11] = REG(REGS5);

69
	dwarf_regs[12] = REG(REGS6);

70
	dwarf_regs[13] = REG(REGS7);

71
	dwarf_regs[14] = REG(REGS8);

72
	dwarf_regs[15] = REG(LR);

73
#endif

74
	dwfl_thread_state_register_pc(thread, REG(PC));

75


76
	return dwfl_thread_state_registers(thread, 0, PERF_REG_CSKY_MAX,

77
					   dwarf_regs);

78
}

79


80