given an object file and address addr2line tool can relate it to a file and line number in the source code.
I'd like to have the opposite. Given a line number and an object file I want to get a list of instruction addresses which correspond to a given line in the source code.
I know that I can use objdump -DS and seek for a line, but that inconvenient, and requires manual effort to filter out the addresses. Do you know any tool which can do what I want if I give it a list of lines?
UPD.
I give an example of what I want.
I have a set of file lines:
src/a.c:14
src/a.c:28
src/b.c:44
I pass this list to a tool:
cat lines | line2addr -e lib.so
And it reports me instruction addresses for these lines:
0x442: src/a.c:14
0x444: src/a.c:14
0x44a: src/a.c:14
0x584: src/a.c:28
0x588: src/a.c:28
...
The way to do it in a utility manner is with the following GDB cmd-line:
gdb ../main.o -ex "info line main.c:39" --batch
Line 39 of "main.c" starts at address 0x36 <main+54> and ends at 0x5e <main+94>.
The GDB accepts either an object or an executable file compiled with debug info (-g). Use GDB 7.6 and higher. Earlier versions crashed on Windows while loading object files.
Multiple lines can be translated by applying the -ex switch multiple times:
gdb ../main.o -ex "info line main.c:39" -ex "info line main.c:41" --batch
Line 39 of "main.c" starts at address 0x36 <main+54> and ends at 0x5e <main+94>.
Line 41 of "main.c" starts at address 0x5e <main+94> and ends at 0x70 <main+112>.