[PATCH] configure: Replace -Wl,-r,-d with -Wl,-r

[Fangrui Song]

In GNU ld and ld.lld, -d is used with -r to allocate space to COMMON symbols.
This behavior is presumably to work around legacy projects which inspect
relocatable output by themselves and do not handle COMMON symbols. grub does
not do this.

See https://github.com/llvm/llvm-project/issues/53660
-d is quite useless and ld.lld may remove -d or make it a no-op for the
15.0.0 release.
---
 acinclude.m4                |  2 +-
 conf/Makefile.common        |  2 +-
 grub-core/Makefile.core.def | 20 ++++++++++----------
 grub-core/genmod.sh.in      |  4 ++--
 4 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/acinclude.m4 b/acinclude.m4
index 6e14bb553..fa7840f09 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -430,7 +430,7 @@ link_nopie_needed=no]
 AC_MSG_CHECKING([whether linker needs disabling of PIE to work])
 AC_LANG_CONFTEST([AC_LANG_SOURCE([[]])])
 
-[if eval "$ac_compile -Wl,-r,-d -nostdlib -Werror -o conftest.o" 2> /dev/null; 
then]
+[if eval "$ac_compile -Wl,-r -nostdlib -Werror -o conftest.o" 2> /dev/null; 
then]
   AC_MSG_RESULT([no])
   [# Should we clear up other files as well, having called `AC_LANG_CONFTEST'?
   rm -f conftest.o
diff --git a/conf/Makefile.common b/conf/Makefile.common
index f0bb6e160..1d7b39599 100644
--- a/conf/Makefile.common
+++ b/conf/Makefile.common
@@ -41,7 +41,7 @@ CCASFLAGS_KERNEL = $(CCASFLAGS_CPU) $(CCASFLAGS_PLATFORM)
 STRIPFLAGS_KERNEL = -R .rel.dyn -R .reginfo -R .note -R .comment -R .drectve 
-R .note.gnu.gold-version -R .MIPS.abiflags -R .ARM.exidx
 
 CFLAGS_MODULE = $(CFLAGS_PLATFORM) -ffreestanding
-LDFLAGS_MODULE = $(LDFLAGS_PLATFORM) -nostdlib $(TARGET_LDFLAGS_OLDMAGIC) 
-Wl,-r,-d
+LDFLAGS_MODULE = $(LDFLAGS_PLATFORM) -nostdlib $(TARGET_LDFLAGS_OLDMAGIC) 
-Wl,-r
 CPPFLAGS_MODULE = $(CPPFLAGS_CPU) $(CPPFLAGS_PLATFORM)
 CCASFLAGS_MODULE = $(CCASFLAGS_CPU) $(CCASFLAGS_PLATFORM)
 
diff --git a/grub-core/Makefile.core.def b/grub-core/Makefile.core.def
index 8022e1c0a..ac00cc8a2 100644
--- a/grub-core/Makefile.core.def
+++ b/grub-core/Makefile.core.def
@@ -49,26 +49,26 @@ kernel = {
 
   nostrip = emu;
 
-  emu_ldflags              = '-Wl,-r,-d';
-  i386_efi_ldflags         = '-Wl,-r,-d';
+  emu_ldflags              = '-Wl,-r';
+  i386_efi_ldflags         = '-Wl,-r';
   i386_efi_stripflags      = '--strip-unneeded -K start -R .note -R .comment 
-R .note.gnu.gold-version';
-  x86_64_efi_ldflags       = '-Wl,-r,-d';
+  x86_64_efi_ldflags       = '-Wl,-r';
   x86_64_efi_stripflags    = '--strip-unneeded -K start -R .note -R .comment 
-R .note.gnu.gold-version';
 
   ia64_efi_cflags = '-fno-builtin -fpic -minline-int-divide-max-throughput';
-  ia64_efi_ldflags = '-Wl,-r,-d';
+  ia64_efi_ldflags = '-Wl,-r';
   ia64_efi_stripflags = '--strip-unneeded -K start -R .note -R .comment -R 
.note.gnu.gold-version';
 
-  arm_efi_ldflags          = '-Wl,-r,-d';
+  arm_efi_ldflags          = '-Wl,-r';
   arm_efi_stripflags       = '--strip-unneeded -K start -R .note -R .comment 
-R .note.gnu.gold-version';
 
-  arm64_efi_ldflags          = '-Wl,-r,-d';
+  arm64_efi_ldflags          = '-Wl,-r';
   arm64_efi_stripflags       = '--strip-unneeded -K start -R .note -R .comment 
-R .note.gnu.gold-version -R .eh_frame';
 
-  riscv32_efi_ldflags      = '-Wl,-r,-d';
+  riscv32_efi_ldflags      = '-Wl,-r';
   riscv32_efi_stripflags   = '--strip-unneeded -K start -R .note -R .comment 
-R .note.gnu.gold-version -R .eh_frame';
 
-  riscv64_efi_ldflags      = '-Wl,-r,-d';
+  riscv64_efi_ldflags      = '-Wl,-r';
   riscv64_efi_stripflags   = '--strip-unneeded -K start -R .note -R .comment 
-R .note.gnu.gold-version -R .eh_frame';
 
   i386_pc_ldflags          = '$(TARGET_IMG_LDFLAGS)';
@@ -98,9 +98,9 @@ kernel = {
   i386_qemu_cppflags     = 
'-DGRUB_BOOT_MACHINE_LINK_ADDR=$(GRUB_BOOT_MACHINE_LINK_ADDR)';
   emu_cflags = '$(CFLAGS_GNULIB)';
   emu_cppflags = '$(CPPFLAGS_GNULIB)';
-  arm_uboot_ldflags       = '-Wl,-r,-d';
+  arm_uboot_ldflags       = '-Wl,-r';
   arm_uboot_stripflags    = '--strip-unneeded -K start -R .note -R .comment -R 
.note.gnu.gold-version';
-  arm_coreboot_ldflags       = '-Wl,-r,-d';
+  arm_coreboot_ldflags       = '-Wl,-r';
   arm_coreboot_stripflags    = '--strip-unneeded -K start -R .note -R .comment 
-R .note.gnu.gold-version';
 
   i386_pc_startup = kern/i386/pc/startup.S;
diff --git a/grub-core/genmod.sh.in b/grub-core/genmod.sh.in
index 1250589b3..e57c4d920 100644
--- a/grub-core/genmod.sh.in
+++ b/grub-core/genmod.sh.in
@@ -83,9 +83,9 @@ else
     for dep in $deps; do echo "char moddep_$dep[] __attribute__ 
((section(\"_moddeps, _moddeps\"))) = \"$dep\";" >>$t2; done
 
     if test -n "$deps"; then
-       @TARGET_CC@ @TARGET_LDFLAGS@ -ffreestanding -nostdlib -o $tmpfile2 $t1 
$t2 $tmpfile -Wl,-r,-d
+       @TARGET_CC@ @TARGET_LDFLAGS@ -ffreestanding -nostdlib -o $tmpfile2 $t1 
$t2 $tmpfile -Wl,-r
     else
-       @TARGET_CC@ @TARGET_LDFLAGS@ -ffreestanding -nostdlib -o $tmpfile2 $t1 
$tmpfile -Wl,-r,-d
+       @TARGET_CC@ @TARGET_LDFLAGS@ -ffreestanding -nostdlib -o $tmpfile2 $t1 
$tmpfile -Wl,-r
     fi
     rm -f $t1 $t2 $tmpfile
     mv $tmpfile2 $tmpfile
-- 
2.35.0.263.gb82422642f-goog