1LLVM-SIZE(1)                         LLVM                         LLVM-SIZE(1)
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NAME

6       llvm-size - print size information
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SYNOPSIS

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

12       llvm-size  is a tool that prints size information for binary files.  It
13       is intended to be a drop-in replacement for GNU's size.
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15       The tool prints size information for each input specified. If no  input
16       is  specified, the program prints size information for a.out. If "-" is
17       specified as an input file, llvm-size reads a file  from  the  standard
18       input  stream. If an input is an archive, size information will be dis‐
19       played for all its members.
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OPTIONS

22       -A     Equivalent to --format with a value of sysv.
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24       --arch=<arch>
25              Architecture(s) from Mach-O universal binaries to display infor‐
26              mation for.
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28       -B     Equivalent to --format with a value of berkeley.
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30       --common
31              Include  ELF common symbol sizes in bss size for berkeley output
32              format, or as a separate section entry for sysv output.  If  not
33              specified, these symbols are ignored.
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35       -d     Equivalent to --radix with a value of 10.
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37       -l     Display  verbose address and offset information for segments and
38              sections in Mach-O files in darwin format.
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40       --format=<format>
41              Set the output format to the <format> specified. Available <for‐
42              mat> options are berkeley (the default), sysv and darwin.
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44              Berkeley  output  summarises  text,  data  and bss sizes in each
45              file, as shown below for a typical pair of ELF files:
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47                 $ llvm-size --format=berkeley test.o test2.o
48                    text    data     bss     dec     hex filename
49                     182      16       5     203      cb test.elf
50                      82       8       1      91      5b test2.o
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52              For Mach-O files, the output format is slightly different:
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54                 $ llvm-size --format=berkeley macho.obj macho2.obj
55                 __TEXT  __DATA  __OBJC  others  dec     hex
56                 4       8       0       0       12      c       macho.obj
57                 16      32      0       0       48      30      macho2.obj
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59              Sysv output displays size and address information for most  sec‐
60              tions, with each file being listed separately:
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62                 $ llvm-size --format=sysv test.elf test2.o
63                    test.elf  :
64                    section       size      addr
65                    .eh_frame       92   2097496
66                    .text           90   2101248
67                    .data           16   2105344
68                    .bss             5   2105360
69                    .comment       209         0
70                    Total          412
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72                    test2.o  :
73                    section             size   addr
74                    .text                 26      0
75                    .data                  8      0
76                    .bss                   1      0
77                    .comment             106      0
78                    .note.GNU-stack        0      0
79                    .eh_frame             56      0
80                    .llvm_addrsig          2      0
81                    Total                199
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83              darwin  format only affects Mach-O input files. If an input of a
84              different file format is  specified,  llvm-size  falls  back  to
85              berkeley format. When producing darwin format, the tool displays
86              information about segments and sections:
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88                 $ llvm-size --format=darwin macho.obj macho2.obj
89                    macho.obj:
90                    Segment : 12
91                            Section (__TEXT, __text): 4
92                            Section (__DATA, __data): 8
93                            total 12
94                    total 12
95                    macho2.obj:
96                    Segment : 48
97                            Section (__TEXT, __text): 16
98                            Section (__DATA, __data): 32
99                            total 48
100                    total 48
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102       --help, -h
103              Display a summary of command line options.
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105       -m     Equivalent to --format with a value of darwin.
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107       -o     Equivalent to --radix with a value of 8.
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109       --radix=<value>
110              Display size information in the specified radix. Permitted  val‐
111              ues  are 8, 10 (the default) and 16 for octal, decimal and hexa‐
112              decimal output respectively.
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114              Example:
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116                 $ llvm-size --radix=8 test.o
117                    text    data     bss     oct     hex filename
118                    0152      04      04     162      72 test.o
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120                 $ llvm-size --radix=10 test.o
121                    text    data     bss     dec     hex filename
122                     106       4       4     114      72 test.o
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124                 $ llvm-size --radix=16 test.o
125                    text    data     bss     dec     hex filename
126                    0x6a     0x4     0x4     114      72 test.o
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128       --totals, -t
129              Applies only to berkeley output format. Display the  totals  for
130              all listed fields, in addition to the individual file listings.
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132              Example:
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134                 $ llvm-size --totals test.elf test2.o
135                    text    data     bss     dec     hex filename
136                     182      16       5     203      cb test.elf
137                      82       8       1      91      5b test2.o
138                     264      24       6     294     126 (TOTALS)
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140       --version
141              Display the version of the llvm-size executable.
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143       -x     Equivalent to --radix with a value of 16.
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145       @<FILE>
146              Read command-line options from response file <FILE>.
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EXIT STATUS

149       llvm-size exits with a non-zero exit code if there is an error.  Other‐
150       wise, it exits with code 0.
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BUGS

153       To         report         bugs,         please         visit         <‐
154       https://github.com/llvm/llvm-project/labels/tools:llvm-size/>.
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AUTHOR

157       Maintained by the LLVM Team (https://llvm.org/).
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160       2003-2023, LLVM Project
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16514                                2023-01-19                      LLVM-SIZE(1)
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