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ch3-08: 缩短代码长度，不超过80

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chai2010 2018-07-21 15:35:48 +08:00
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commit 5aaad62379
1 changed files with 17 additions and 16 deletions
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ch3-asm/ch3-08-debug.md
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@ -48,7 +48,7 @@ The following commands are available:
disassemble (alias: disass) - Disassembler. disassemble (alias: disass) - Disassembler.
down ------------------------ Move the current frame down. down ------------------------ Move the current frame down.
exit (alias: quit | q) ------ Exit the debugger. exit (alias: quit | q) ------ Exit the debugger.
frame ----------------------- Set the current frame, or execute command on a different frame. frame ----------------------- Set the current frame, or execute command...
funcs ----------------------- Print list of functions. funcs ----------------------- Print list of functions.
goroutine ------------------- Shows or changes current goroutine goroutine ------------------- Shows or changes current goroutine
goroutines ------------------ List program goroutines. goroutines ------------------ List program goroutines.
@ -61,7 +61,7 @@ The following commands are available:
regs ------------------------ Print contents of CPU registers. regs ------------------------ Print contents of CPU registers.
restart (alias: r) ---------- Restart process. restart (alias: r) ---------- Restart process.
set ------------------------- Changes the value of a variable. set ------------------------- Changes the value of a variable.
source ---------------------- Executes a file containing a list of delve commands source ---------------------- Executes a file containing a list of delve...
sources --------------------- Print list of source files. sources --------------------- Print list of source files.
stack (alias: bt) ----------- Print stack trace. stack (alias: bt) ----------- Print stack trace.
step (alias: s) ------------- Single step through program. step (alias: s) ------------- Single step through program.
@ -89,7 +89,8 @@ Breakpoint 1 set at 0x10ae9b8 for main.main() ./main.go:7
``` ```
(dlv) breakpoints (dlv) breakpoints
Breakpoint unrecovered-panic at 0x102a380 for runtime.startpanic() /usr/local/go/src/runtime/panic.go:588 (0) Breakpoint unrecovered-panic at 0x102a380 for runtime.startpanic()
/usr/local/go/src/runtime/panic.go:588 (0)
print runtime.curg._panic.arg print runtime.curg._panic.arg
Breakpoint 1 at 0x10ae9b8 for main.main() ./main.go:7 (0) Breakpoint 1 at 0x10ae9b8 for main.main() ./main.go:7 (0)
``` ```
@ -295,19 +296,19 @@ Breakpoint 1 set at 0x105011f for main.main() ./main.go:3
4: 4:
5: func asmSayHello() 5: func asmSayHello()
(dlv) disassemble (dlv) disassemble
TEXT main.main(SB) /Users/chai/go/src/github.com/chai2010/advanced-go-programming-book/vendor/gobook.examples/ch3-08-debug/hello-asm/main.go TEXT main.main(SB) /path/to/pkg/main.go
main.go:3 0x1050110 65488b0c25a0080000 mov rcx, qword ptr gs:[0x8a0] main.go:3 0x1050110 65488b0c25a0080000 mov rcx, qword ptr gs:[0x8a0]
main.go:3 0x1050119 483b6110 cmp rsp, qword ptr [rcx+0x10] main.go:3 0x1050119 483b6110 cmp rsp, qword ptr [rcx+0x10]
main.go:3 0x105011d 761a jbe 0x1050139 main.go:3 0x105011d 761a jbe 0x1050139
=> main.go:3 0x105011f* 4883ec08 sub rsp, 0x8 => main.go:3 0x105011f* 4883ec08 sub rsp, 0x8
main.go:3 0x1050123 48892c24 mov qword ptr [rsp], rbp main.go:3 0x1050123 48892c24 mov qword ptr [rsp], rbp
main.go:3 0x1050127 488d2c24 lea rbp, ptr [rsp] main.go:3 0x1050127 488d2c24 lea rbp, ptr [rsp]
main.go:3 0x105012b e880000000 call $main.asmSayHello main.go:3 0x105012b e880000000 call $main.asmSayHello
main.go:3 0x1050130 488b2c24 mov rbp, qword ptr [rsp] main.go:3 0x1050130 488b2c24 mov rbp, qword ptr [rsp]
main.go:3 0x1050134 4883c408 add rsp, 0x8 main.go:3 0x1050134 4883c408 add rsp, 0x8
main.go:3 0x1050138 c3 ret main.go:3 0x1050138 c3 ret
main.go:3 0x1050139 e87288ffff call $runtime.morestack_noctxt main.go:3 0x1050139 e87288ffff call $runtime.morestack_noctxt
main.go:3 0x105013e ebd0 jmp $main.main main.go:3 0x105013e ebd0 jmp $main.main
(dlv) (dlv)
``` ```