| Summary: | ar --plugin doesn't work on mixed IR/non-IR input | ||
|---|---|---|---|
| Product: | binutils | Reporter: | H.J. Lu <hjl.tools> |
| Component: | binutils | Assignee: | Not yet assigned to anyone <unassigned> |
| Status: | NEW --- | ||
| Severity: | normal | CC: | law |
| Priority: | P2 | ||
| Version: | 2.24 | ||
| Target Milestone: | --- | ||
| Host: | Target: | ||
| Build: | Last reconfirmed: | ||
The problem is ar/nm doesn't see symbols in .gnu_object_only section. AR ignores the normal symbol table. |
[hjl@gnu-6 slim-1]$ cat main.c extern int bar (); int main () { return bar (); } [hjl@gnu-6 slim-1]$ cat xxx.c int xxx () { return 0; } [hjl@gnu-6 slim-1]$ cat bar.c extern int xxx (); int bar (void) { return xxx (); } [hjl@gnu-6 slim-1]$ make /usr/gcc-4.7.0-x32/bin/gcc -c -o main.o main.c /usr/gcc-4.7.0-x32/bin/gcc -flto -c -o xxx.o xxx.c /usr/gcc-4.7.0-x32/bin/gcc -c -o bar.o bar.c ld -r -o rel.o xxx.o bar.o ar --plugin /usr/gcc-4.7.0-x32/libexec/gcc/x86_64-unknown-linux-gnu/4.7.0/liblto_plugin.so -rcsD lib.a rel.o /usr/gcc-4.7.0-x32/bin/gcc -flto -o x main.o lib.a main.o: In function `main': main.c:(.text+0xa): undefined reference to `bar' collect2: error: ld returned 1 exit status make: *** [x] Error 1 [hjl@gnu-6 slim-1]$ .. Without --plugin, it works fine: [hjl@gnu-6 slim-1]$ rm lib.a [hjl@gnu-6 slim-1]$ make ar -rcsD lib.a rel.o /usr/gcc-4.7.0-x32/bin/gcc -flto -o x main.o lib.a [hjl@gnu-6 slim-1]$