https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104895
Bug ID: 104895
Summary: lto1: issue with space in library filename
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: lto
Assignee: unassigned at gcc dot gnu.org
Reporter: christophm30 at gmail dot com
CC: marxin at gcc dot gnu.org
Target Milestone: ---
When building Souffle, I ran into an LTO issue with a library that contains a
space in its filename (see
https://github.com/souffle-lang/souffle/issues/2214).
I've isolated the issue as follows (Fedora 35: gcc (GCC) 11.2.1 20220127 (Red
Hat 11.2.1-9)):
Makefile:
CC=gcc
CFLAGS=-fPIC
CFLAGS:=$(CFLAGS) -flto=auto
RM=rm -f
all: ltomain
"lib do it".so: doit.o
$(CC) $(CFLAGS) $(LDFLAGS) -shared -Wl,-soname,"lib'do it'.so" -o
"lib'do it'.so" doit.o
ltomain: main.o "lib do it".so
$(CC) $(CFLAGS) $(LDFLAGS) -o $@ main.o -L. -l"'do it'"
clean:
$(RM) *.o *.so ltomain
doit.c:
#include <stdio.h>
void doit(void)
{
printf("Hello world!\n");
}
void doit();
main.c:
int main()
{
doit();
}
This gives the following error:
$ make clean all
rm -f *.o *.so ltomain
gcc -fPIC -flto=auto -c -o main.o main.c
gcc -fPIC -flto=auto -c -o doit.o doit.c
gcc -fPIC -flto=auto -shared -Wl,-soname,"lib'do it'.so" -o "lib'do it'.so"
doit.o
lto1: error: open it.so. failed: No such file or directory
make[1]: *** [/tmp/ccetIqO9.mk:2: /tmp/ccIqDtkB.ltrans0.ltrans.o] Error 1
lto-wrapper: fatal error: make returned 2 exit status
compilation terminated.
/usr/bin/ld: error: lto-wrapper failed
collect2: error: ld returned 1 exit status
make: *** [Makefile:9: "lib] Error 1
Replacing '-flto=auto' by '-flto' works:
$ make clean all
rm -f *.o *.so ltomain
gcc -fPIC -flto -c -o main.o main.c
gcc -fPIC -flto -c -o doit.o doit.c
gcc -fPIC -flto -shared -Wl,-soname,"lib'do it'.so" -o "lib'do it'.so" doit.o
gcc -fPIC -flto -shared -Wl,-soname,"lib'do it'.so" -o "lib'do it'.so" doit.o
gcc -fPIC -flto -shared -Wl,-soname,"lib'do it'.so" -o "lib'do it'.so" doit.o
gcc -fPIC -flto -o ltomain main.o -L. -l"'do it'"
$ LD_LIBRARY_PATH=. ./ltomain
Hello world!
