https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64740
Bug ID: 64740
Summary: ld called with
-plugin-opt=-fresolution=-plugin-opt=-debug.res
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: driver
Assignee: unassigned at gcc dot gnu.org
Reporter: vries at gcc dot gnu.org
I.
When doing lto using a single gcc invocation:
...
$install/bin/gcc $src/libgomp/testsuite/libgomp.c/target-9.c \
-Wl,-rpath=$install/lib64 \
-flto -ftree-parallelize-loops=0 -fopenmp \
-o ./a.out \
$verboseflags
...
for different verboseflags, we get the following plugin-opt args for ld:
1. -v -Wl,-v -Wl,-plugin-opt=-debug
-plugin-opt=-fresolution=/tmp/cc3WBKNB.res -plugin-opt=-debug
2. -v -Wl,-v -save-temps
-plugin-opt=-fresolution=target-9.res
3. -v -Wl,-v -Wl,-plugin-opt=-debug -save-temps
-plugin-opt=-fresolution=target-9.res -plugin-opt=-debug
Those results look as expected.
II.
When doing lto using a two gcc invocations:
...
$install/bin/gcc $src/libgomp/testsuite/libgomp.c/target-9.c \
-Wl,-rpath=$install/lib64 \
-flto -ftree-parallelize-loops=0 -fopenmp \
-c -o obj.o
$install/bin/gcc obj.o -Wl,-rpath=$install/lib64 \
-flto -ftree-parallelize-loops=0 \
-o ./a.out \
$verboseflags
for different verboseflags, we get the following plugin-opt args for ld:
1. -v -Wl,-v -Wl,-plugin-opt=-debug
-plugin-opt=-fresolution=/tmp/ccCYQEcq.res -plugin-opt=-debug
2. -v -Wl,-v -save-temps
-plugin-opt=-fresolution=-v.res
3. -v -Wl,-v -Wl,-plugin-opt=-debug -save-temps
-plugin-opt=-fresolution=-plugin-opt=-debug.res -plugin-opt=-debug
The last two don't seem intentional to me. We're using an intermediate file
starting with an option name.
Still the compilation succeeds without any problems.
