[PATCH v2] ld: Use stat to check if linker script appears multiple times

[Jan Beulich]

On 11.08.2025 23:25, H.J. Lu wrote:
> Use stat, instead of strcmp, to check if the same linker script file
> appears multiple times for
> 
> $ ld -L... -T ././/script.t -T script.t ...
> 
> Although ././/script.t and script.t access the same file, but their
> filenames are different.  strcmp won't work here.
> 
> Copy ../gnulib/import/same-inode.h to ld since the gnulib directory
> isn't included in the binutils tarball.
> 
> 	PR ld/24576
> 	* ldfile.c: Include "same-inode.h".
> 	(ldfile_find_command_file): Change the second argument from bool
> 	to enum script_open_style.  Check if the same linker script file
> 	appears multiple times by using stat, instead using strcmp.
> 	(ldfile_open_command_file_1): Don't check if the same linker
> 	script file appears multiple times here.
> 	* same-inode.h: New file.  Copied from
> 	../gnulib/import/same-inode.h.

Wouldn't this better go in include/, and then also be used by at least
fdmatch(), maybe also getpwd()?

Jan