size [-A|-B|-G|--format=compatibility]
[--help]
[-d|-o|-x|--radix=number]
[--common]
[-t|--totals]
[--target=bfdname] [-V|--version]
[-f]
[objfile]
The GNU size utility lists the section sizes and the total size for each of the binary files objfile on its argument list. By default, one line of output is generated for each file or each module if the file is an archive.
objfile are the files to be examined. If none are specified, the file a.out will be used instead.
The command-line options have the following meanings:
-A-B-G--format=compatibilityUsing one of these options, you can choose whether the output from GNU size resembles output from System V size (using -A, or --format=sysv), or Berkeley size (using -B, or --format=berkeley). The default is the one-line format similar to Berkeleys. Alternatively, you can choose the GNU format output (using -G, or --format=gnu), this is similar to Berkeleys output format, but sizes are counted differently.
Here is an example of the Berkeley (default) format of output from size:
$ size --format=Berkeley ranlib size text data bss dec hex filename 294880 81920 11592 388392 5ed28 ranlib 294880 81920 11888 388688 5ee50 size
The Berkeley style output counts read only data in the text column, not in the data column, the dec and hex columns both display the sum of the text, data, and bss columns in decimal and hexadecimal respectively.
The GNU format counts read only data in the data column, not the text column, and only displays the sum of the text, data, and bss columns once, in the total column. The --radix option can be used to change the number base for all columns. Here is the same data displayed with GNU conventions:
$ size --format=GNU ranlib size
text data bss total filename
279880 96920 11592 388392 ranlib
279880 96920 11888 388688 size
This is the same data, but displayed closer to System V conventions:
$ size --format=SysV ranlib size ranlib : section size addr .text 294880 8192 .data 81920 303104 .bss 11592 385024 Total 388392 size : section size addr .text 294880 8192 .data 81920 303104 .bss 11888 385024 Total 388688
--help-h-H-?Show a summary of acceptable arguments and options.
-d-o-x--radix=numberUsing one of these options, you can control whether the size of each section is given in decimal (-d, or --radix=10); octal (-o, or --radix=8); or hexadecimal (-x, or --radix=16). In --radix=number, only the three values (8, 10, 16) are supported. The total size is always given in two radices; decimal and hexadecimal for -d or -x output, or octal and hexadecimal if youre using -o.
--commonPrint total size of common symbols in each file. When using Berkeley or GNU format these are included in the bss size.
-t--totalsShow totals of all objects listed (Berkeley or GNU format mode only).
--target=bfdnameSpecify that the object-code format for objfile is bfdname. This option may not be necessary; size can automatically recognize many formats. See Target Selection, for more information.
-v-V--versionDisplay the version number of size.
-fIgnored. This option is used by other versions of the size program, but it is not supported by the GNU Binutils version.