| Message ID | 20141024064947.GB339@x4 |
|---|---|
| State | New |
| Headers | show |
diff --git a/gcc/collect2.c b/gcc/collect2.c index c54e6fb51578..7c067ffcafbb 100644 --- a/gcc/collect2.c +++ b/gcc/collect2.c @@ -1311,6 +1311,12 @@ main (int argc, char **argv) ld1--; ld2--; } + else if (strncmp (arg, "-fno-lto", 8) == 0) + { + /* Do not pass -fno-lto to the linker. */ + ld1--; + ld2--; + } #ifdef TARGET_AIX_VERSION else { diff --git a/gcc/testsuite/g++.dg/torture/pr63632.C b/gcc/testsuite/g++.dg/torture/pr63632.C new file mode 100644 index 000000000000..48cd8692412a --- /dev/null +++ b/gcc/testsuite/g++.dg/torture/pr63632.C @@ -0,0 +1,5 @@ +// PR bootstrap/63632 +// { dg-do link } +// { dg-options "-fno-lto" } + +int main () {}
r216566 (r216568 for 4.9 branch) added %{fno-lto} to LINK_COMMAND_SPEC. However the linker doesn't understand -fno-lto and errors out. This causes LTO/PGO bootstrap to fail, because -fno-lto is used during STAGEprofile. Fixed by filtering out -fno-lto in collect2.c. LTO/PGO bootstrapped and tested on powerpc64-unknown-linux-gnu. Preapproved by Jakub on IRC. Applied to trunk and 4.9 branch. 2014-10-24 Markus Trippelsdorf <markus@trippelsdorf.de> PR bootstrap/63632 * collect2.c (main): Filter out -fno-lto. PR bootstrap/63632 * g++.dg/torture/pr63632.C: New test.