https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64595
--- Comment #5 from rguenther at suse dot de <rguenther at suse dot de> --- On Wed, 14 Jan 2015, ian at airs dot com wrote: > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64595 > > --- Comment #4 from Ian Lance Taylor <ian at airs dot com> --- > To invoke cgo, put this code in a file foo.go and type "go run foo.go" (or "go > build foo.go && ./foo"). > > > package main > > // #include <stdio.h> > // void cprintln(const char *s) { puts(s); } > import "C" > > func main() { > C.cprintln(C.CString("Hello, world")) > } Hmm, I get > go-5 build foo.go no debug info in ELF executable errno -1 fatal error: no debug info in ELF executable runtime stack: no debug info in ELF executable errno -1 panic during panic runtime stack: no debug info in ELF executable errno -1 stack trace unavailable (not really informative, seems to be from the go-5 binary). On openSUSE all binaries have debug information stripped and put into separate objects not necessarily installed. Installing it doesn't solve the above issue. The message seems to originate from libbacktrace (unwind information is not stripped, obviously). > readelf -S /usr/bin/go-5 There are 33 section headers, starting at offset 0x70ad10: Section Headers: [Nr] Name Type Address Offset Size EntSize Flags Link Info Align [ 0] NULL 0000000000000000 00000000 0000000000000000 0000000000000000 0 0 0 [ 1] .interp PROGBITS 0000000000400270 00000270 000000000000001c 0000000000000000 A 0 0 1 [ 2] .note.ABI-tag NOTE 000000000040028c 0000028c 0000000000000020 0000000000000000 A 0 0 4 [ 3] .note.gnu.build-i NOTE 00000000004002ac 000002ac 0000000000000024 0000000000000000 A 0 0 4 [ 4] .hash HASH 00000000004002d0 000002d0 0000000000000704 0000000000000004 A 6 0 8 [ 5] .gnu.hash GNU_HASH 00000000004009d8 000009d8 000000000000001c 0000000000000000 A 6 0 8 [ 6] .dynsym DYNSYM 00000000004009f8 000009f8 0000000000001770 0000000000000018 A 7 1 8 [ 7] .dynstr STRTAB 0000000000402168 00002168 000000000000093f 0000000000000000 A 0 0 1 [ 8] .gnu.version VERSYM 0000000000402aa8 00002aa8 00000000000001f4 0000000000000002 A 6 0 2 [ 9] .gnu.version_r VERNEED 0000000000402ca0 00002ca0 0000000000000120 0000000000000000 A 7 4 8 [10] .rela.dyn RELA 0000000000402dc0 00002dc0 0000000000000048 0000000000000018 A 6 0 8 [11] .rela.plt RELA 0000000000402e08 00002e08 00000000000016f8 0000000000000018 A 6 13 8 [12] .init PROGBITS 0000000000404500 00004500 000000000000001a 0000000000000000 AX 0 0 4 [13] .plt PROGBITS 0000000000404520 00004520 0000000000000f60 0000000000000010 AX 0 0 16 [14] .text PROGBITS 0000000000405480 00005480 000000000029fc34 0000000000000000 AX 0 0 16 [15] .fini PROGBITS 00000000006a50b4 002a50b4 0000000000000009 0000000000000000 AX 0 0 4 [16] .rodata PROGBITS 00000000006a50c0 002a50c0 00000000002b30b0 0000000000000000 A 0 0 32 [17] .eh_frame_hdr PROGBITS 0000000000958170 00558170 000000000000ea8c 0000000000000000 A 0 0 4 [18] .eh_frame PROGBITS 0000000000966c00 00566c00 0000000000072dc4 0000000000000000 A 0 0 8 [19] .gcc_except_table PROGBITS 00000000009d99c4 005d99c4 0000000000004849 0000000000000000 A 0 0 4 [20] .tbss NOBITS 0000000000bdec40 005dec40 00000000000000d8 0000000000000000 WAT 0 0 8 [21] .init_array INIT_ARRAY 0000000000bdec40 005dec40 0000000000000018 0000000000000000 WA 0 0 8 [22] .fini_array FINI_ARRAY 0000000000bdec58 005dec58 0000000000000008 0000000000000000 WA 0 0 8 [23] .jcr PROGBITS 0000000000bdec60 005dec60 0000000000000008 0000000000000000 WA 0 0 8 [24] .data.rel.ro PROGBITS 0000000000bdec80 005dec80 0000000000000148 0000000000000000 WA 0 0 32 [25] .dynamic DYNAMIC 0000000000bdedc8 005dedc8 0000000000000210 0000000000000010 WA 7 0 8 [26] .got PROGBITS 0000000000bdefd8 005defd8 0000000000000018 0000000000000008 WA 0 0 8 [27] .got.plt PROGBITS 0000000000bdf000 005df000 00000000000007c0 0000000000000008 WA 0 0 8 [28] .data PROGBITS 0000000000bdf7c0 005df7c0 000000000007e170 0000000000000000 WA 0 0 32 [29] .bss NOBITS 0000000000c5d940 0065d930 0000000000024a10 0000000000000000 WA 0 0 32 [30] .go_export PROGBITS 0000000000000000 0065d930 00000000000ad29e 0000000000000000 0 0 1 [31] .gnu_debuglink PROGBITS 0000000000000000 0070abce 0000000000000010 0000000000000000 0 0 1 [32] .shstrtab STRTAB 0000000000000000 0070abde 000000000000012e 0000000000000000 0 0 1 Key to Flags: W (write), A (alloc), X (execute), M (merge), S (strings), l (large) I (info), L (link order), G (group), T (TLS), E (exclude), x (unknown) O (extra OS processing required) o (OS specific), p (processor specific) If I build package main func main() { } with gccgo, strip it and then try to execute it the same error appears: rguenther@murzim:/tmp> gccgo-5 foo.go rguenther@murzim:/tmp> > ./a.out rguenther@murzim:/tmp> gccgo-5 foo.go rguenther@murzim:/tmp> ./a.out rguenther@murzim:/tmp> strip a.out rguenther@murzim:/tmp> ./a.out no debug info in ELF executable errno -1 fatal error: no debug info in ELF executable runtime stack: no debug info in ELF executable errno -1 panic during panic runtime stack: no debug info in ELF executable errno -1 stack trace unavailable what's the reason for this?
