What is the command line to see the contents of a Shared Object module (lib*.so)?
Like how we use:
ar -t lib*.a
for archives(lib*.a) and it displays all the object files in the library.
EDIT1
Example
ar -t lib*.a
gives me a display:
asset.o
sldep.o
use nm -D --defined-only libname.so
to get the symbol names from your dynamic library.
The --defined-only
switch shows you only the symbol that are defined in these files, and not references to external functions.
An alternative is to use objdump, and catch only the symbols in the text section :
objdump -T /usr/lib/libjpeg.so | grep text
...
0001b5c0 g DF .text 00000016 Base jdiv_round_up
00003730 g DF .text 00000417 Base jpeg_set_colorspace
0000cda0 g DF .text 000002de Base jpeg_consume_input
00002b30 g DF .text 00000023 Base jpeg_abort_compress
00003b50 g DF .text 000000b6 Base jpeg_default_colorspace
00002810 g DF .text 00000067 Base jpeg_suppress_tables
00004110 g DF .text 00000130 Base jpeg_add_quant_table
000100c0 g DF .text 0000011f Base jpeg_save_markers
...
I think nm -D
is what you're looking for.
$ nm -D /usr/lib/libpng.so
...
00000000000058f0 T png_reset_zstream
000000000000d420 T png_save_int_32
000000000000d450 T png_save_uint_16
000000000000d3f0 T png_save_uint_32
0000000000007810 T png_set_IHDR
0000000000007500 T png_set_PLTE
000000000000ce20 T png_set_add_alpha
0000000000006670 T png_set_asm_flags
0000000000006970 T png_set_bKGD
000000000001a740 T png_set_background
...
The nm -D
command lists the dynamic symbols of your shared library, which seems to be exactly what you want.