YunQiang Su <[email protected]> 于2024年5月22日周三 17:54写道：
>
> If `find_a_program` cannot find `as/ld/objcopy` and we are a cross toolchain,
> the final fallback is `as/ld` of system. In fact, we can have a try with
> <triple>-as/ld/objcopy before fallback to native as/ld/objcopy.
>
> This patch is derivatived from Debian's patch:
> gcc-search-prefixed-as-ld.diff
>
> gcc
> * gcc.cc(execute): Looks for <triple>-as/ld/objcopy before fallback
> to native as/ld/objcopy.
ping. OK for the trunk?
> ---
> gcc/gcc.cc | 20 ++++++++++++++++++++
> 1 file changed, 20 insertions(+)
>
> diff --git a/gcc/gcc.cc b/gcc/gcc.cc
> index 830a4700a87..3dc6348d761 100644
> --- a/gcc/gcc.cc
> +++ b/gcc/gcc.cc
> @@ -3293,6 +3293,26 @@ execute (void)
> string = find_a_program(commands[0].prog);
> if (string)
> commands[0].argv[0] = string;
> + else if (*cross_compile != '0'
> + && !strcmp (commands[0].argv[0], commands[0].prog)
> + && (!strcmp (commands[0].prog, "as")
> + || !strcmp (commands[0].prog, "ld")
> + || !strcmp (commands[0].prog, "objcopy")))
> + {
> + string = concat (DEFAULT_REAL_TARGET_MACHINE, "-",
> + commands[0].prog, NULL);
> + const char *string_args[] = {string, "--version", NULL};
> + int exit_status = 0;
> + int err = 0;
> + const char *errmsg = pex_one (PEX_SEARCH, string,
> + CONST_CAST (char **, string_args), string,
> + NULL, NULL, &exit_status, &err);
> + if (errmsg == NULL && exit_status == 0 && err == 0)
> + {
> + commands[0].argv[0] = string;
> + commands[0].prog = string;
> + }
> + }
> }
>
> for (n_commands = 1, i = 0; argbuf.iterate (i, &arg); i++)
> --
> 2.39.2
>
