riscv/kernel/mcount-dyn.S

30 	addi	sp, sp, -ABI_SIZE_ON_STACK
32 	REG_S	a0, ABI_A0(sp)
33 	REG_S	a1, ABI_A1(sp)
34 	REG_S	a2, ABI_A2(sp)
35 	REG_S	a3, ABI_A3(sp)
36 	REG_S	a4, ABI_A4(sp)
37 	REG_S	a5, ABI_A5(sp)
38 	REG_S	a6, ABI_A6(sp)
39 	REG_S	a7, ABI_A7(sp)
40 	REG_S	t0, ABI_T0(sp)
41 	REG_S	ra, ABI_RA(sp)
45 	REG_L	a0, ABI_A0(sp)
46 	REG_L	a1, ABI_A1(sp)
47 	REG_L	a2, ABI_A2(sp)
48 	REG_L	a3, ABI_A3(sp)
49 	REG_L	a4, ABI_A4(sp)
50 	REG_L	a5, ABI_A5(sp)
51 	REG_L	a6, ABI_A6(sp)
52 	REG_L	a7, ABI_A7(sp)
53 	REG_L	t0, ABI_T0(sp)
54 	REG_L	ra, ABI_RA(sp)
56 	addi	sp, sp, ABI_SIZE_ON_STACK
66 * 0(sp) stores the PC of the traced function which can be accessed
70 * 8(sp) stores the function return address (i.e. parent IP) that
83 *                       + sp    +   +
85 *               sp  ->  + epc   + --+ // PC
89 	mv	t4, sp			// Save original SP in T4
90 	addi	sp, sp, -FREGS_SIZE_ON_STACK
92 	REG_S	t0,  FREGS_EPC(sp)
93 	REG_S	x1,  FREGS_RA(sp)
94 	REG_S	t4,  FREGS_SP(sp)	// Put original SP on stack
96 	REG_S	x8,  FREGS_S0(sp)
98 	REG_S	x6,  FREGS_T1(sp)
101 	REG_S	x10, FREGS_A0(sp)
102 	REG_S	x11, FREGS_A1(sp)
103 	REG_S	x12, FREGS_A2(sp)
104 	REG_S	x13, FREGS_A3(sp)
105 	REG_S	x14, FREGS_A4(sp)
106 	REG_S	x15, FREGS_A5(sp)
107 	REG_S	x16, FREGS_A6(sp)
108 	REG_S	x17, FREGS_A7(sp)
112 	REG_L	t0, FREGS_EPC(sp)
113 	REG_L	x1, FREGS_RA(sp)
115 	REG_L	x8, FREGS_S0(sp)
117 	REG_L	x6,  FREGS_T1(sp)
120 	REG_L	x10, FREGS_A0(sp)
121 	REG_L	x11, FREGS_A1(sp)
122 	REG_L	x12, FREGS_A2(sp)
123 	REG_L	x13, FREGS_A3(sp)
124 	REG_L	x14, FREGS_A4(sp)
125 	REG_L	x15, FREGS_A5(sp)
126 	REG_L	x16, FREGS_A6(sp)
127 	REG_L	x17, FREGS_A7(sp)
129 	addi	sp, sp, FREGS_SIZE_ON_STACK
137 	mv	a3, sp
150 	mv	a3, sp
156 	addi	a0, sp, ABI_RA
157 	REG_L	a1, ABI_T0(sp)