http://bugzilla.opensuse.org/show_bug.cgi?id=1185529

Bug ID: 1185529 Summary: libgccjit does not find libgcc/crtbegin.o Classification: openSUSE Product: openSUSE Tumbleweed Version: Current Hardware: Other OS: Other Status: NEW Severity: Normal Priority: P5 - None Component: Development Assignee: screening-team-bugs@suse.de Reporter: opensusebz@halobates.de QA Contact: qa-bugs@suse.de Found By: --- Blocker: ---

Trying to compile current emacs with libgccjit11, but the test of libgccjit at configure time fails:

(t.c is below) gcc t.c -lgccjit ./a.out ld: cannot find crtbeginS.o: No such file or directory ld: cannot find -lgcc ld: cannot find -lgcc_s libgccjit.so: error: error invoking gcc driver

strace shows that the paths seem to be incorrect:

strace -e execve -f ./a.out ... [pid 23720] execve("/usr/bin/ld", ["ld", "--build-id", "--eh-frame-hdr", "-m", "elf_x86_64", "-shared", "-o", "/tmp/libgccjit-X37gMf/fake.so", "/usr/lib/../lib64/crti.o", "crtbeginS.o", "-L/lib/../lib64", "-L/usr/lib/../lib64", "/tmp/ccgGNXSP.o", "-lgcc", "--push-state", "--as-needed", "-lgcc_s", "--pop-state", "-lc", "-lgcc", "--push-state", "--as-needed", "-lgcc_s", "--pop-state", "crtendS.o", "/usr/lib/../lib64/crtn.o"], 0x14203a0 /* 105 vars */) = 0

crtbegin etc. are in /usr/lib64/gcc/x86_64-suse-linux/ but the driver is not telling the linker that.

t.c:

#include <libgccjit.h> #include <stdlib.h> #include <stdio.h> int main (int argc, char **argv) { gcc_jit_context *ctxt; gcc_jit_result *result; ctxt = gcc_jit_context_acquire (); if (!ctxt) exit (1); gcc_jit_type *int_type = gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_INT); gcc_jit_function *func = gcc_jit_context_new_function (ctxt, NULL, GCC_JIT_FUNCTION_EXPORTED, int_type, "foo", 0, NULL, 0); gcc_jit_block *block = gcc_jit_function_new_block (func, "foo"); gcc_jit_block_end_with_return ( block, NULL, gcc_jit_context_new_rvalue_from_int (ctxt, int_type, 1)); result = gcc_jit_context_compile (ctxt); if (!result) exit (1); typedef int (*fn_type) (void); fn_type foo = (fn_type)gcc_jit_result_get_code (result, "foo"); if (!foo) exit (1); if (foo () != 1) exit (1); gcc_jit_context_release (ctxt); gcc_jit_result_release (result); return 0; }