1LLVM-SIZE(1)                         LLVM                         LLVM-SIZE(1)
2
3
4

NAME

6       llvm-size - print size information
7

SYNOPSIS

9       llvm-size [options] [input...]
10

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.
14
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.
20

OPTIONS

22       -A     Equivalent to --format with a value of sysv.
23
24       --arch=<arch>
25              Architecture(s) from Mach-O universal binaries to display infor‐
26              mation for.
27
28       -B     Equivalent to --format with a value of berkeley.
29
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.
34
35       -d     Equivalent to --radix with a value of 10.
36
37       -l     Display  verbose address and offset information for segments and
38              sections in Mach-O files in darwin format.
39
40       --format=<format>
41              Set the output format to the <format> specified. Available <for‐
42              mat> options are berkeley (the default), sysv and darwin.
43
44              Berkeley  output  summarises  text,  data  and bss sizes in each
45              file, as shown below for a typical pair of ELF files:
46
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
51
52              For Mach-O files, the output format is slightly different:
53
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
58
59              Sysv output displays size and address information for most  sec‐
60              tions, with each file being listed separately:
61
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
71
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
82
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:
87
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
101
102       --help, -h
103              Display a summary of command line options.
104
105       -m     Equivalent to --format with a value of darwin.
106
107       -o     Equivalent to --radix with a value of 8.
108
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.
113
114              Example:
115
116                 $ llvm-size --radix=8 test.o
117                    text    data     bss     oct     hex filename
118                    0152      04      04     162      72 test.o
119
120                 $ llvm-size --radix=10 test.o
121                    text    data     bss     dec     hex filename
122                     106       4       4     114      72 test.o
123
124                 $ llvm-size --radix=16 test.o
125                    text    data     bss     dec     hex filename
126                    0x6a     0x4     0x4     114      72 test.o
127
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.
131
132              Example:
133
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)
139
140       --version
141              Display the version of the llvm-size executable.
142
143       -x     Equivalent to --radix with a value of 16.
144
145       @<FILE>
146              Read command-line options from response file <FILE>.
147

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.
151

BUGS

153       To report bugs, please visit <https://bugs.llvm.org/>.
154

AUTHOR

156       Maintained by the LLVM Team (https://llvm.org/).
157

159       2003-2023, LLVM Project
160
161
162
163
16413                                2023-07-20                      LLVM-SIZE(1)
Impressum