https://gcc.gnu.org/g:a704554d2e798e2e1b74b9fea4baf3477180bd9d
commit r15-108-ga704554d2e798e2e1b74b9fea4baf3477180bd9d
Author: Peter Damianov <peter0...@disroot.org>
Date: Sun Apr 28 16:16:12 2024 -0700
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 <peter0...@disroot.org>
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.
Diff:
---
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
{
