https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98145
Bug ID: 98145
Summary: On Windows .exe extension is missing when
searching/calling mkoffload
Product: gcc
Version: 10.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: brechtsanders at users dot sourceforge.net
Target Milestone: ---
I was trying to get nvptx offloading to work on Windows/MinGW-w64, and got the
following output when testing the resulting build:
lto-wrapper.exe: fatal error: could not find accel/nvptx-none/mkoffload in
d:/prog/winlibs64-10.2.0-8.0.0/mingw64/bin/../libexec/gcc/x86_64-w64-mingw32/10.2.0/;d:/prog/winlibs64-10.2.0-8.0.0/mingw64/bin/../libexec/gcc/;d:/prog/winlibs64-10.2.0-8.0.0/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.2.0/../../../../x86_64-w64-mingw32/bin/
(consider using '-B')
compilation terminated.
It looks to me like gcc/lto-wrapper.c needs to be fixed so it looks for
mkoffload.exe instead of just mkoffload on Windows.
Probably something like this but with some additional checks to only add the
.exe on the Windows platform:
patch -ulbf gcc/lto-wrapper.c << EOF
@@ -827,6 +827,6 @@
char *suffix
- = XALLOCAVEC (char, sizeof ("/accel//mkoffload") + strlen (target));
+ = XALLOCAVEC (char, sizeof ("/accel//mkoffload.exe") + strlen (target));
strcpy (suffix, "/accel/");
strcat (suffix, target);
- strcat (suffix, "/mkoffload");
+ strcat (suffix, "/mkoffload.exe");
EOF
