-A

Equivalent to --format with a value of sysv.

--arch=<arch>

Architecture(s) from Mach-O universal binaries to display information for.

-B

Equivalent to --format with a value of berkeley.

--common

Include ELF common symbol sizes in bss size for berkeley output format, or as a separate section entry for sysv output. If not specified, these symbols are ignored.

-d

Equivalent to --radix with a value of 10.

-l

Display verbose address and offset information for segments and sections in Mach-O files in darwin format.

--format=<format>

Set the output format to the <format> specified. Available <format> options are berkeley (the default), sysv and darwin.

Berkeley output summarises text, data and bss sizes in each file, as shown below for a typical pair of ELF files:

$ llvm-size --format=berkeley test.o test2.o


   text    data     bss     dec     hex filename


    182      16       5     203      cb test.elf


     82       8       1      91      5b test2.o

For Mach-O files, the output format is slightly different:

$ llvm-size --format=berkeley macho.obj macho2.obj
__TEXT  __DATA  __OBJC  others  dec     hex
4       8       0       0       12      c       macho.obj
16      32      0       0       48      30      macho2.obj

Sysv output displays size and address information for most sections, with each file being listed separately:

$ llvm-size --format=sysv test.elf test2.o


   test.elf  :


   section       size      addr


   .eh_frame       92   2097496


   .text           90   2101248


   .data           16   2105344


   .bss             5   2105360


   .comment       209         0


   Total          412


   test2.o  :


   section             size   addr


   .text                 26      0


   .data                  8      0


   .bss                   1      0


   .comment             106      0


   .note.GNU-stack        0      0


   .eh_frame             56      0


   .llvm_addrsig          2      0


   Total                199

darwin format only affects Mach-O input files. If an input of a different file format is specified, llvm-size falls back to berkeley format. When producing darwin format, the tool displays information about segments and sections:

$ llvm-size --format=darwin macho.obj macho2.obj


   macho.obj:


   Segment : 12


           Section (__TEXT, __text): 4


           Section (__DATA, __data): 8


           total 12


   total 12


   macho2.obj:


   Segment : 48


           Section (__TEXT, __text): 16


           Section (__DATA, __data): 32


           total 48


   total 48

--help, -h

Display a summary of command line options.

-m

Equivalent to --format with a value of darwin.

-o

Equivalent to --radix with a value of 8.

--radix=<value>

Display size information in the specified radix. Permitted values are 8, 10 (the default) and 16 for octal, decimal and hexadecimal output respectively.

Example:

$ llvm-size --radix=8 test.o


   text    data     bss     oct     hex filename


   0152      04      04     162      72 test.o
$ llvm-size --radix=10 test.o


   text    data     bss     dec     hex filename


    106       4       4     114      72 test.o
$ llvm-size --radix=16 test.o


   text    data     bss     dec     hex filename


   0x6a     0x4     0x4     114      72 test.o

--totals, -t

Applies only to berkeley output format. Display the totals for all listed fields, in addition to the individual file listings.

Example:

$ llvm-size --totals test.elf test2.o


   text    data     bss     dec     hex filename


    182      16       5     203      cb test.elf


     82       8       1      91      5b test2.o


    264      24       6     294     126 (TOTALS)

--version

Display the version of the llvm-size executable.

-x

Equivalent to --radix with a value of 16.

@<FILE>

Read command-line options from response file <FILE>.