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gdb: nothing works (windows amd64) #5552
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Did you read http://golang.org/doc/gdb ? In particular: " ... optimizations can sometimes make debugging with gdb harder. To disable them when debugging, pass the flags -gcflags "-N -l" to the go command used to build the code being debugged." Alex |
Sorry -- I didn't include the flags while I should have. Nevertheless the problem persists. ``` C:\Users\xxxxxxxx\Desktop>go build -gcflags "-N -l" test.go C:\Users\xxxxxxxx\Desktop>gdb test.exe GNU gdb (GDB) 7.4 Copyright (C) 2012 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>; This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-w64-mingw32". For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>;... Reading symbols from C:\Users\xxxxxxxx\Desktop/test.exe...done. Loading Go Runtime support. (gdb) break main.main Breakpoint 1 at 0x401000: file C:/Users/xxxxxxxx/Desktop/test.go, line 5. (gdb) r Starting program: C:\Users\xxxxxxxx\Desktop/test.exe [New Thread 3900.0x133c] Breakpoint 1, main.main () at C:/Users/xxxxxxxx/Desktop/test.go:5 5 func main() { (gdb) n 6 println(S) (gdb) [New Thread 3900.0x11ac] 1234 7 S = S + "5" (gdb) 8 println(S) (gdb) p S No symbol "S" in current context. (gdb) info goroutines ``` then crashes. |
minux, Here is my gdb session: C:\go\path\mine\src\t>c:\bin\gdb.exe main.exe GNU gdb (GDB) 7.5.50.20130118 Copyright (C) 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>; This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "i686-pc-mingw32". For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>;. This binary was built by Equation Solution <http://www.Equation.com>;... Reading symbols from C:\go\path\mine\src\t\main.exe...done. (gdb) b 'main.main' Breakpoint 1 at 0x401000: file C:/go/path/mine/src/t/main.go, line 6. (gdb) r Starting program: C:\go\path\mine\src\t\main.exe [New Thread 1536.0x5c4] Breakpoint 1, main.main () at C:/go/path/mine/src/t/main.go:6 6 func main() { (gdb) n 7 go print(I) (gdb) n [New Thread 1536.0x1c8c] 8 s := S (gdb) n 9 print(s) (gdb) p s $1 = 0x420cb8 "abc" (gdb) |
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by SmileKZS:
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