From a704554d2e798e2e1b74b9fea4baf3477180bd9d Mon Sep 17 00:00:00 2001 From: Peter Damianov Date: Sun, 28 Apr 2024 16:16:12 -0700 Subject: [PATCH] lto-wrapper: Truncate files using -truncate driver option [PR110710] This commit changes the Makefiles generated by lto-wrapper to no longer use the "mv" and "touch" shell commands. These don't exist on Windows, so when the Makefile attempts to call them, it results in errors like: The system cannot find the file specified. This problem only manifested when calling gcc from cmd.exe, and having no sh.exe present on the PATH. The Windows port of GNU Make searches the PATH for an sh.exe, and uses it if present. I have tested this in environments with and without sh.exe on the PATH and confirmed it works as expected. Signed-off-by: Peter Damianov PR lto/110710 * lto-wrapper.cc (run_gcc): Instead of truncating a processed ltrans input from the Makefile use the new -truncate option to accomplish the same. --- gcc/lto-wrapper.cc | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/gcc/lto-wrapper.cc b/gcc/lto-wrapper.cc index 02579951569..cfded757f26 100644 --- a/gcc/lto-wrapper.cc +++ b/gcc/lto-wrapper.cc @@ -2023,14 +2023,12 @@ cont: fprintf (mstream, "%s:\n\t@%s ", output_name, new_argv[0]); for (j = 1; new_argv[j] != NULL; ++j) fprintf (mstream, " '%s'", new_argv[j]); - fprintf (mstream, "\n"); /* If we are not preserving the ltrans input files then truncate them as soon as we have processed it. This reduces temporary disk-space usage. */ if (! save_temps) - fprintf (mstream, "\t@-touch -r \"%s\" \"%s.tem\" > /dev/null " - "2>&1 && mv \"%s.tem\" \"%s\"\n", - input_name, input_name, input_name, input_name); + fprintf (mstream, " -truncate '%s'", input_name); + fprintf (mstream, "\n"); } else {