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From f2a5b64785958226c022cac9931b059b98f4e896 Mon Sep 17 00:00:00 2001
From: Merlin Mathesius <mmathesi@redhat.com>
Date: Wed, 13 May 2020 08:02:27 -0500
Subject: [PATCH] Workaround multiple definition of symbol errors
Lifted from Fedora https://src.fedoraproject.org/rpms/syslinux/blob/master/f/0005-Workaround-multiple-definition-of-symbol-errors.patch
Upstream-Status: Pending
Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
com32/cmenu/Makefile | 2 +-
com32/elflink/ldlinux/Makefile | 2 +-
com32/gpllib/Makefile | 2 +-
com32/hdt/Makefile | 2 +-
core/Makefile | 2 +-
dos/Makefile | 2 +-
efi/Makefile | 2 +-
7 files changed, 7 insertions(+), 7 deletions(-)
diff --git a/com32/cmenu/Makefile b/com32/cmenu/Makefile
index b81b68e..2ae989c 100644
--- a/com32/cmenu/Makefile
+++ b/com32/cmenu/Makefile
@@ -49,7 +49,7 @@ makeoutputdirs:
@mkdir -p $(OBJ)/libmenu
libmenu/libmenu.elf: $(LIBMENU)
- $(LD) -shared $(LDFLAGS) -soname $(patsubst %.elf,%.c32,$(@F)) \
+ $(LD) -shared $(LDFLAGS) -z muldefs -soname $(patsubst %.elf,%.c32,$(@F)) \
-o $@ $^
tidy dist:
diff --git a/com32/elflink/ldlinux/Makefile b/com32/elflink/ldlinux/Makefile
index 87c0d36..2be2a01 100644
--- a/com32/elflink/ldlinux/Makefile
+++ b/com32/elflink/ldlinux/Makefile
@@ -33,7 +33,7 @@ endif
all: $(BTARGET) ldlinux_lnx.a
ldlinux.elf : $(OBJS)
- $(LD) $(LDFLAGS) -soname $(SONAME) -o $@ $^ $(LIBS)
+ $(LD) $(LDFLAGS) -z muldefs -soname $(SONAME) -o $@ $^ $(LIBS)
LNXCFLAGS += -D__export='__attribute__((visibility("default")))'
LNXLIBOBJS = get_key.lo
diff --git a/com32/gpllib/Makefile b/com32/gpllib/Makefile
index 1fec914..2d764d0 100644
--- a/com32/gpllib/Makefile
+++ b/com32/gpllib/Makefile
@@ -24,7 +24,7 @@ makeoutputdirs:
$(addprefix $(OBJ),$(sort $(dir $(LIBOBJS)))),$(b))
libgpl.elf : $(LIBOBJS)
- $(LD) -shared $(LDFLAGS) -soname $(patsubst %.elf,%.c32,$(@F)) -o $@ $^
+ $(LD) -shared $(LDFLAGS) -z muldefs -soname $(patsubst %.elf,%.c32,$(@F)) -o $@ $^
tidy dist clean:
find . \( -name \*.o -o -name .\*.d -o -name \*.tmp \) -print0 | \
diff --git a/com32/hdt/Makefile b/com32/hdt/Makefile
index 61736d0..1d94785 100644
--- a/com32/hdt/Makefile
+++ b/com32/hdt/Makefile
@@ -52,7 +52,7 @@ QEMU ?= qemu-kvm
all: $(MODULES) $(TESTFILES)
hdt.elf : $(OBJS) $(LIBS) $(C_LIBS)
- $(LD) $(LDFLAGS) -o $@ $^
+ $(LD) $(LDFLAGS) -z muldefs -o $@ $^
memtest:
-[ ! -f $(FLOPPY_DIR)/$(MEMTEST) ] && $(WGET) $(MEMTEST_URL) -O $(FLOPPY_DIR)/$(MEMTEST)
diff --git a/core/Makefile b/core/Makefile
index 50ff35a..f0a5562 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -156,7 +156,7 @@ LDSCRIPT = $(SRC)/$(ARCH)/syslinux.ld
NASM_ELF = elf
%.elf: %.o $(LIBDEP) $(LDSCRIPT) $(AUXLIBS)
- $(LD) $(LDFLAGS) -pie -Bsymbolic \
+ $(LD) $(LDFLAGS) -z muldefs -pie -Bsymbolic \
-T $(LDSCRIPT) \
--unresolved-symbols=report-all \
-E --hash-style=gnu -M -o $@ $< \
diff --git a/dos/Makefile b/dos/Makefile
index 4c930d1..5d1c72c 100644
--- a/dos/Makefile
+++ b/dos/Makefile
@@ -19,7 +19,7 @@ include $(MAKEDIR)/embedded.mk
CFLAGS += -D__MSDOS__ -mregparm=3 -DREGPARM=3
# CFLAGS += -DDEBUG
-LDFLAGS = -T $(SRC)/dosexe.ld
+LDFLAGS = -T $(SRC)/dosexe.ld -z muldefs
OPTFLAGS = -g
INCLUDES = -include code16.h -nostdinc -iwithprefix include \
-I$(SRC) -I$(SRC)/.. -I$(SRC)/../libfat \
diff --git a/efi/Makefile b/efi/Makefile
index f4501e7..72e081e 100644
--- a/efi/Makefile
+++ b/efi/Makefile
@@ -71,7 +71,7 @@ $(OBJS): | $(OBJ)/$(ARCH)
BTARGET = syslinux.efi
syslinux.so: $(OBJS) $(CORE_OBJS) $(LIB_OBJS)
- $(LD) $(LDFLAGS) --strip-debug -o $@ $^ -lgnuefi -lefi
+ $(LD) $(LDFLAGS) -z muldefs --strip-debug -o $@ $^ -lgnuefi -lefi
# We need to rename the .hash section because the EFI firmware
# linker really doesn't like it.
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