int aaa;// 未初始化的全局变量，bss区
int bbb = 0;// 初始化为0的全局变量，bss区
int ccc = 1;// 初始化非0的全局变量，data区
int main() {
static int ddd;// 未初始化的静态局部变量，bss区
static int eee = 0;// 初始化为0的静态局部变量，bss区
static int fff = 2;// 初始化为非0的静态局部变量，data区
int ggg;// 栈(stacks)
return 0;
}
使用 objdump -t 命令查看变量内容所处存储位置：
gcc main.c -o main
objdump -t main
main： 文件格式 elf64-x86-64
SYMBOL TABLE:
0000000000400238 l d .interp 0000000000000000 .interp
0000000000400254 l d .note.ABI-tag 0000000000000000 .note.ABI-tag
0000000000400274 l d .note.gnu.build-id 0000000000000000 .note.gnu.build-id
0000000000400298 l d .gnu.hash 0000000000000000 .gnu.hash
00000000004002b8 l d .dynsym 0000000000000000 .dynsym
0000000000400300 l d .dynstr 0000000000000000 .dynstr
0000000000400338 l d .gnu.version 0000000000000000 .gnu.version
0000000000400340 l d .gnu.version_r 0000000000000000 .gnu.version_r
0000000000400360 l d .rela.dyn 0000000000000000 .rela.dyn
0000000000400378 l d .rela.plt 0000000000000000 .rela.plt
0000000000400390 l d .init 0000000000000000 .init
00000000004003b0 l d .plt 0000000000000000 .plt
00000000004003d0 l d .plt.got 0000000000000000 .plt.got
00000000004003e0 l d .text 0000000000000000 .text
0000000000400564 l d .fini 0000000000000000 .fini
0000000000400570 l d .rodata 0000000000000000 .rodata
0000000000400574 l d .eh_frame_hdr 0000000000000000 .eh_frame_hdr
00000000004005a8 l d .eh_frame 0000000000000000 .eh_frame
0000000000600e10 l d .init_array 0000000000000000 .init_array
0000000000600e18 l d .fini_array 0000000000000000 .fini_array
0000000000600e20 l d .jcr 0000000000000000 .jcr
0000000000600e28 l d .dynamic 0000000000000000 .dynamic
0000000000600ff8 l d .got 0000000000000000 .got
0000000000601000 l d .got.plt 0000000000000000 .got.plt
0000000000601020 l d .data 0000000000000000 .data
0000000000601038 l d .bss 0000000000000000 .bss
0000000000000000 l d .comment 0000000000000000 .comment
0000000000000000 l df *ABS* 0000000000000000 crtstuff.c
0000000000600e20 l O .jcr 0000000000000000 __JCR_LIST__
0000000000400410 l F .text 0000000000000000 deregister_tm_clones
0000000000400450 l F .text 0000000000000000 register_tm_clones
0000000000400490 l F .text 0000000000000000 __do_global_dtors_aux
0000000000601038 l O .bss 0000000000000001 completed.7594
0000000000600e18 l O .fini_array 0000000000000000 __do_global_dtors_aux_fini_array_entry
00000000004004b0 l F .text 0000000000000000 frame_dummy
0000000000600e10 l O .init_array 0000000000000000 __frame_dummy_init_array_entry
0000000000000000 l df *ABS* 0000000000000000 main.c
0000000000601034 l O .data 0000000000000004 fff.1837
0000000000601040 l O .bss 0000000000000004 eee.1836
0000000000601044 l O .bss 0000000000000004 ddd.1835
0000000000000000 l df *ABS* 0000000000000000 crtstuff.c
0000000000400698 l O .eh_frame 0000000000000000 __FRAME_END__
0000000000600e20 l O .jcr 0000000000000000 __JCR_END__
0000000000000000 l df *ABS* 0000000000000000
0000000000600e18 l .init_array 0000000000000000 __init_array_end
0000000000600e28 l O .dynamic 0000000000000000 _DYNAMIC
0000000000600e10 l .init_array 0000000000000000 __init_array_start
0000000000400574 l .eh_frame_hdr 0000000000000000 __GNU_EH_FRAME_HDR
0000000000601000 l O .got.plt 0000000000000000 _GLOBAL_OFFSET_TABLE_
0000000000400560 g F .text 0000000000000002 __libc_csu_fini
0000000000000000 w *UND* 0000000000000000 _ITM_deregisterTMCloneTable
0000000000601020 w .data 0000000000000000 data_start
0000000000601038 g .data 0000000000000000 _edata
0000000000400564 g F .fini 0000000000000000 _fini
0000000000601030 g O .data 0000000000000004 ccc
000000000060103c g O .bss 0000000000000004 bbb
0000000000000000 F *UND* 0000000000000000 __libc_start_main@@GLIBC_2.2.5
0000000000601020 g .data 0000000000000000 __data_start
0000000000000000 w *UND* 0000000000000000 __gmon_start__
0000000000601028 g O .data 0000000000000000 .hidden __dso_handle
0000000000400570 g O .rodata 0000000000000004 _IO_stdin_used
00000000004004f0 g F .text 0000000000000065 __libc_csu_init
0000000000601050 g .bss 0000000000000000 _end
00000000004003e0 g F .text 000000000000002a _start
0000000000601038 g .bss 0000000000000000 __bss_start
00000000004004d6 g F .text 000000000000000b main
0000000000000000 w *UND* 0000000000000000 _Jv_RegisterClasses
0000000000601038 g O .data 0000000000000000 .hidden __TMC_END__
0000000000000000 w *UND* 0000000000000000 _ITM_registerTMCloneTable
0000000000400390 g F .init 0000000000000000 _init
0000000000601048 g O .bss 0000000000000004 aaa
可以直接搜索变量名，找到对应内容的存储位置。
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