Created
June 15, 2016 15:16
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Expected output debugging duffsteptest.go
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dlv debug | |
Type 'help' for list of commands. | |
(dlv) b main.foo | |
Breakpoint 1 set at 0x2058 for main.foo() ./code.go:14 | |
(dlv) c | |
> main.foo() ./code.go:14 (hits goroutine(1):1 total:1) (PC: 0x2058) | |
9: // Expect to be stopped in fmt.Printf or runtime.duffzero | |
10: import "fmt" | |
11: | |
12: var v int = 99 | |
13: | |
=> 14: func foo(x, y int) (z int) { // c goes here | |
15: fmt.Printf("x=%d, y=%d, z=%d\n", x, y, z) // s #1 goes here | |
16: z = x + y | |
17: return | |
18: } | |
19: | |
(dlv) s | |
> main.foo() ./code.go:15 (PC: 0x2087) | |
10: import "fmt" | |
11: | |
12: var v int = 99 | |
13: | |
14: func foo(x, y int) (z int) { // c goes here | |
=> 15: fmt.Printf("x=%d, y=%d, z=%d\n", x, y, z) // s #1 goes here | |
16: z = x + y | |
17: return | |
18: } | |
19: | |
20: func main() { | |
(dlv) s | |
> runtime.duffzero() /Users/drchase/GoogleDrive/work/go/src/runtime/duff_amd64.s:99 (PC: 0x51b10) | |
94: MOVUPS X0,32(DI) | |
95: MOVUPS X0,48(DI) | |
96: ADDQ $64,DI | |
97: | |
98: MOVUPS X0,(DI) | |
=> 99: MOVUPS X0,16(DI) | |
100: MOVUPS X0,32(DI) | |
101: MOVUPS X0,48(DI) | |
102: ADDQ $64,DI | |
103: | |
104: RET | |
(dlv) |
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