How to view LINUX-GCC compiled by which version of the compiler

how to see which version of the compiler compiled the LINUX-GCC http://bbs.csdn.net/topics/380000949

That is not possible unless you add debug information, which is compiled by adding the-G parameter, and then debugging with GDB can be displayed. View an elf file information to the fullest extent.
As follows:

[Email protected] rootfs]# Readelf-wa bin/gzip

ELF header:magic:7f $4c $  on  on  on xx xx xx xx xx xx xx xx xxclass:elf32 Data:2's complement, little endianVersion:1(current) OS/abi:unix-System V ABI Version:0type:exec (executable file) Machine:arm Version: 0x1Entry Point Address:0xa080Start of program headers: the(bytes to file) Start of section headers:1975444(bytes into file) Flags:0x5000002, have entry point, Version5 EABI Size of ThisHeader the(bytes) Size of program headers: +(bytes) Number of program headers:6Size of section headers: +(bytes) Number of section headers: -Section HeaderstringTable index: -Section Headers: [Nr] Name Type Addr Off Size ES Flg Lk Inf Al [0] NULL00000000 000000 000000 xx      0   0  0  [ 1]. Note. Abi-tag NOTE 000080f4 0000f4000020 xxA0   0  4  [ 2]. Init progbits00008114 00011400000cxxAx0   0  4  [ 3]. Text Progbits00008120 00012017fcfcxxAx0   0  -  [ 4] __libc_freeres_fn progbits 00187e1c 17fe1c 000f20xxAx0   0  4  [ 5] __libc_thread_fre progbits 00188d3c 180d3c 0000e4xxAx0   0  4  [ 6]. Fini progbits 00188e20 180e20000008 xxAx0   0  4  [ 7]. Rodata progbits 00188e28 180e28058147 xxA0   0  8  [ 8] __libc_subfreeres progbits 001e0f70 1d8f70 00005cxxA0   0  4  [ 9] __libc_atexit progbits 001E0FCC 1D8FCC000004 xxA0   0  4  [Ten] __libc_thread_sub progbits 001e0fd0 1d8fd0000008 xxA0   0  4  [ One] . Arm.extab progbits 001e0fd8 1d8fd8 001b04xxA0   0  4  [ A] . Arm.exidx arm_exidx 001E2ADC 1DAADC 006ea8xxAL3   0  4  [ -]. Tdata progbits 001f1984 1e1984000018 xxWAT0   0  4  [ -]. TBSS nobits 001f199c 1e199c000034 xxWAT0   0  4  [ the]. Init_array Init_array 001f199c 1e199c000004 xxWA0   0  4  [ -]. Fini_array Fini_array 001f19a0 1e19a0000008 xxWA0   0  4  [ -]. JCR progbits 001f19a8 1e19a8000004 xxWA0   0  4  [ -]. data.rel.ro progbits 001f19ac 1e19ac 00002cxxWA0   0  4  [ +]. Got progbits 001f19d8 1e19d8 00007cGenevaWA0   0  4  [ -]. Data progbits 001f1a58 1e1a58 0008f7xxWA0   0  8  [ +]. BSS Nobits 001f23501e234f 004828 xxWA0   0  8  [ A] __libc_freeres_pt nobits 001f6b781e234f00003cxxWA0   0  4  [ at] . Arm.attributes arm_attributes00000000 1e234f00002bxx      0   0  1  [ -]. Shstrtab Strtab000000001e237a000118 xx      0   0  1Section to Segment mapping:segment Sections ...xx     . Arm.exidx on. Note. abi-tag. init. Text __libc_freeres_fn __libc_thread_freeres_fn. Fini. Rodata __libc_subfreeres __libc_atexit __libc_ Thread_subfreeres. Arm.extab. Arm.exidx Geneva. Tdata. Init_array. Fini_array. JCR. data.rel.ro. Data. BSS gotGeneva. Note. abi-TagGeneva. Tdata. Tbssattribute section:aeabifile Attributes tag_cpu_name:"5TE"tag_cpu_arch:v5te Tag_arm_isa_use:yes Tag_thumb_isa_use:thumb-1tag_abi_pcs_wchar_t:4tag_abi_fp_denormal:needed tag_abi_fp_exceptions:needed tag_abi_fp_number_model:ieee754tag_abi_align8_needed:yes tag_abi_align8_preserved:yes, except leaf SP tag_abi_enum_size:inttag_unknown_44:1(0x1)

How to retrieve the GCC version used to compile a given ELF executable? Http://stackoverflow.com/questions/2387040/how-to-retrieve-the-gcc-version-used-to-compile-a-given-elf-executable

ques: I ' d like to retrieve the GCC version used to compile a given executable. I tried but readelf didn ' t get the information. Any thoughts?

ANS: To complete what others has Said:it's not stored in the object (or EXE) file, unless you compile wit H Debugging Information! (option -g ). If you compile with the debug info, you can get the it back with readelf :

[email protected] test]# gcc a.c[[email protected] test]# readelf-wi A. out[email protected] test]# gcc A.C-g [[email protected] test]# readelf-wi A. outThe section . debug_info contains:compilation Unit @ offset0x0: Length:135Version:2abbrev Offset:0Pointer Size:8<0><b>: abbrev number:1(dw_tag_compile_unit) Dw_at_stmt_list:0dw_at_high_pc:0x400453dw_at_low_pc:0x400448Dw_at_producer:gnu C4.1.2 20080704(Red Hat4.1.2- -) Dw_at_language:1(ANSI C) dw_at_name:a.c Dw_at_comp_dir:/work/farsight/Test<1>< A: abbrev Number:2(Dw_tag_subprogram) dw_at_external:1dw_at_name:main dw_at_decl_file:1Dw_at_decl_line:4dw_at_prototyped:1Dw_at_type:< the>dw_at_low_pc:0x400448dw_at_high_pc:0x400453dw_at_frame_base:0(location list)<1>< the: abbrev Number:3(Dw_tag_base_type) Dw_at_name:intdw_at_byte_size:4dw_at_encoding:5(Signed)

ANS2:

How to view LINUX-GCC compiled by which version of the compiler