LLVM-SIZE(1)

NAME
llvm-size - print size information

SYNOPSIS

llvm-size [options] [input...]

DESCRIPTION

llvm-size is a tool that prints size information for binary files. It is intended to be a drop-in replacement for GNU's size.

The tool prints size information for each input specified. If no input is specified, the program prints size information for a.out. If "-" is specified as an input file, llvm-size reads a file from the standard input stream. If an input is an archive, size information will be displayed for all its members.

OPTIONS

-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>.

EXIT STATUS

llvm-size exits with a non-zero exit code if there is an error. Otherwise, it exits with code 0.

BUGS

To report bugs, please visit <https://bugs.llvm.org/>.

AUTHOR
Maintained by the LLVM Team (https://llvm.org/).

COPYRIGHT
2003-2024, LLVM Project