[Query] Is it possible to use a wrapper for the compiler executables

[AnithaSyed]

We are using a internal wrapper tool in the make for the gcc compiler.
In bazel since we need to use the toolchain, is there a way to run this wrapper in the toolchain.
EG:- The default gcc command is as /usr/bin/gcc <args for compiler> (Thnx to toolchain I can directly use the arch we need)
Need to run a <wrapper> <args_for_wrapper> /usr/bin/gcc <args for compiler>

Please help on a approach to achieve this using the hermatic toolchain.

[f0rmiga]

Are you the wrapper author? We already have a wrapper here: https://github.com/f0rmiga/gcc-toolchain/blob/36e3e1f430871b539ce9261f53491564aa91c170/toolchain/wrapper.sh.tpl.

It gets rendered here:

gcc-toolchain/toolchain/defs.bzl

Lines 229 to 237 in 36e3e1f

	rctx.template(
	wrapped_tool_path,
	rctx.attr._wrapper_sh_template,
	substitutions = {
	"__PATH__": path_env,
	"__binary__": tool_path,
	},
	executable = True,
	)

.

This means you have to patch gcc_toolchain to be able to inject a custom wrapper here: https://github.com/f0rmiga/gcc-toolchain/blob/36e3e1f430871b539ce9261f53491564aa91c170/toolchain/defs.bzl#L161C1-L161C14.

If you come up with a solution that can be upstreamed, I'm happy to review a PR.

Feel free to reopen this issue if my suggestion doesn't work.