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| author | Fangrui Song <maskray@gcc.gnu.org> | 2024-04-26 18:14:33 -0700 |
|---|---|---|
| committer | Fangrui Song <maskray@google.com> | 2024-04-26 18:14:33 -0700 |
| commit | 50c218e3ffe57860591a987ecf44fcc0abb31f2c (patch) | |
| tree | d128a0543a2d3d3c2e646e411ea296f2a82b2840 /gcc | |
| parent | 2781d8090e66f1e60bedb597e9472d1bc0a9df19 (diff) | |
| download | gcc-50c218e3ffe57860591a987ecf44fcc0abb31f2c.zip gcc-50c218e3ffe57860591a987ecf44fcc0abb31f2c.tar.gz gcc-50c218e3ffe57860591a987ecf44fcc0abb31f2c.tar.bz2 | |
RISC-V: Add -X to link spec
--discard-locals (-X) instructs the linker to remove local .L* symbols,
which occur a lot due to label differences for linker relaxation. The
arm port has a similar need and passes -X to ld.
In contrast, the RISC-V port does not pass -X to ld and rely on the
default --discard-locals in GNU ld's riscv port. The arm way is more
conventional (compiler driver instead of the linker customizes the
default linker behavior) and works with lld.
gcc/ChangeLog:
* config/riscv/elf.h (LINK_SPEC): Add -X.
* config/riscv/freebsd.h (LINK_SPEC): Add -X.
* config/riscv/linux.h (LINK_SPEC): Add -X.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/riscv/elf.h | 1 | ||||
| -rw-r--r-- | gcc/config/riscv/freebsd.h | 1 | ||||
| -rw-r--r-- | gcc/config/riscv/linux.h | 1 |
3 files changed, 3 insertions, 0 deletions
diff --git a/gcc/config/riscv/elf.h b/gcc/config/riscv/elf.h index f533764..c97f13c 100644 --- a/gcc/config/riscv/elf.h +++ b/gcc/config/riscv/elf.h @@ -20,6 +20,7 @@ along with GCC; see the file COPYING3. If not see #define LINK_SPEC "\ -melf" XLEN_SPEC DEFAULT_ENDIAN_SPEC "riscv \ %{mno-relax:--no-relax} \ +-X \ %{mbig-endian:-EB} \ %{mlittle-endian:-EL} \ %{shared}" diff --git a/gcc/config/riscv/freebsd.h b/gcc/config/riscv/freebsd.h index bd08a98..5dd4d51 100644 --- a/gcc/config/riscv/freebsd.h +++ b/gcc/config/riscv/freebsd.h @@ -44,6 +44,7 @@ along with GCC; see the file COPYING3. If not see %{p:%nconsider using `-pg' instead of `-p' with gprof (1)} \ %{v:-V} \ %{assert*} %{R*} %{rpath*} %{defsym*} \ + -X \ %{mbig-endian:-EB} \ %{mlittle-endian:-EL} \ %{shared:-Bshareable %{h*} %{soname*}} \ diff --git a/gcc/config/riscv/linux.h b/gcc/config/riscv/linux.h index 15851f6..3c35622 100644 --- a/gcc/config/riscv/linux.h +++ b/gcc/config/riscv/linux.h @@ -50,6 +50,7 @@ along with GCC; see the file COPYING3. If not see #define LINK_SPEC "\ -melf" XLEN_SPEC DEFAULT_ENDIAN_SPEC "riscv" LD_EMUL_SUFFIX " \ %{mno-relax:--no-relax} \ +-X \ %{mbig-endian:-EB} \ %{mlittle-endian:-EL} \ %{shared} \ |