This reverts commit 37d57ac9a636f2235f9060e84fb8dd7968abd1dc.
The resolution to https://sourceware.org/bugzilla/show_bug.cgi?id=22962
let GCC pass -m emulation to ld and let the ld emulation configure
default library paths. This scheme is problematic:
* It's not ld's business to specify default -L. Different platforms have
different opinions on the hierarchy and all other arches work well without ld's
default -L.
* If some ABI derived library paths are desired, the compiler driver is in a
better position to make the decision and traditionally has done this.
* -m emulation is opaque to the compiler driver. It doesn't affect -B, so
data files like crt*.o, libasan_preinit.o, and libtsan_preinit.o are not
affected.
As is, many platforms just use symlinks to fake the lib64/{ilp32{,f},lp64{,f}}
hierarchies needed by the GNU ld emulation. They can always specify -L
explicitly if they want some ABI derived library paths. See also the rejected
https://reviews.llvm.org/D95755
gcc/Changelog:
* config/riscv/linux.h (LD_EMUL_SUFFIX): Remove.
(LINK_SPEC): Remove LD_EMUL_SUFFIX.
---
gcc/config/riscv/linux.h | 10 +---------
1 file changed, 1 insertion(+), 9 deletions(-)
diff --git a/gcc/config/riscv/linux.h b/gcc/config/riscv/linux.h
index 38803723ba9..e0ff6e6a178 100644
--- a/gcc/config/riscv/linux.h
+++ b/gcc/config/riscv/linux.h
@@ -49,16 +49,8 @@ along with GCC; see the file COPYING3. If not see
#define CPP_SPEC "%{pthread:-D_REENTRANT}"
-#define LD_EMUL_SUFFIX \
- "%{mabi=lp64d:}" \
- "%{mabi=lp64f:_lp64f}" \
- "%{mabi=lp64:_lp64}" \
- "%{mabi=ilp32d:}" \
- "%{mabi=ilp32f:_ilp32f}" \
- "%{mabi=ilp32:_ilp32}"
-
#define LINK_SPEC "\
--melf" XLEN_SPEC DEFAULT_ENDIAN_SPEC "riscv" LD_EMUL_SUFFIX " \
+-melf" XLEN_SPEC DEFAULT_ENDIAN_SPEC "riscv \
%{mno-relax:--no-relax} \
%{mbig-endian:-EB} \
%{mlittle-endian:-EL} \
--
2.36.1.476.g0c4daa206d-goog
