daa315e178
With some toolchains (e.g. mips64el), partial linking fails in the
following way:
/tmp/instance-1/output-1/host/opt/ext-toolchain/bin/../lib/gcc/mips64el-buildroot-linux-uclibc/8.4.0/../../../../mips64el-buildroot-linux-uclibc/bin/ld: build/release/libmupdf.a(Dingbats.cff.o): ABI is incompatible with that of the selected emulation
/tmp/instance-1/output-1/host/opt/ext-toolchain/bin/../lib/gcc/mips64el-buildroot-linux-uclibc/8.4.0/../../../../mips64el-buildroot-linux-uclibc/bin/ld: failed to merge target specific data of file build/release/libmupdf.a(Dingbats.cff.o)
Taking inspiration from commit
9eca4b9f84, fix it by using GCC instead
of LD for partial linking.
Note that on mips the build will now produce warnings similar to this
one:
buildroot/output/host/lib/gcc/mips64el-buildroot-linux-gnu/10.3.0/../../../../mips64el-buildroot-linux-gnu/bin/ld: build/release/libmupdf.a(NotoSansTaiTham-Regular.ttf.o): warning: linking abicalls files with non-abicalls files
During a runtime test on mips64el under qemu, mupdf-x11 was
nonetheless able to display a sample PDF file correctly.
Fixes:
- http://autobuild.buildroot.net/results/156fe9ee5f6dccdc98990f6c5de5562383bc2b74/
Signed-off-by: Raphaël Mélotte <raphael.melotte@mind.be>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
44 lines
1.9 KiB
Diff
44 lines
1.9 KiB
Diff
From da4b98447573daf77829811e95e3772e8a296934 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Rapha=C3=ABl=20M=C3=A9lotte?= <raphael.melotte@mind.be>
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Date: Thu, 2 Sep 2021 20:17:26 +0200
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Subject: [PATCH] Use CC instead of LD for OBJCOPY
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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When cross-compiling for mips targets using Buildroot, using LD for
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partial linking fails in the following way:
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/tmp/instance-1/output-1/host/opt/ext-toolchain/bin/../lib/gcc/mips64el-buildroot-linux-uclibc/8.4.0/../../../../mips64el-buildroot-linux-uclibc/bin/ld: build/release/libmupdf.a(Dingbats.cff.o): ABI is incompatible with that of the selected emulation
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/tmp/instance-1/output-1/host/opt/ext-toolchain/bin/../lib/gcc/mips64el-buildroot-linux-uclibc/8.4.0/../../../../mips64el-buildroot-linux-uclibc/bin/ld: failed to merge target specific data of file build/release/libmupdf.a(Dingbats.cff.o)
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To fix it, use CC instead of LD for partial linking.
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'nostdlib' has to be added, or it will try to use GCC libraries for
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partial linking and fail with 'cannot find -lgcc_s'.
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Fixes:
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- http://autobuild.buildroot.net/results/156fe9ee5f6dccdc98990f6c5de5562383bc2b74
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Signed-off-by: Raphaël Mélotte <raphael.melotte@mind.be>
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[Upstream status: https://bugs.ghostscript.com/show_bug.cgi?id=704442]
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---
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Makefile | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/Makefile b/Makefile
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index b0fb617e2..0a8795e0e 100644
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--- a/Makefile
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+++ b/Makefile
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@@ -64,7 +64,7 @@ endif
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LINK_CMD = $(QUIET_LINK) $(MKTGTDIR) ; $(CC) $(LDFLAGS) -o $@ $^ $(LIBS)
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TAGS_CMD = $(QUIET_TAGS) ctags -R --c-kinds=+p
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WINDRES_CMD = $(QUIET_WINDRES) $(MKTGTDIR) ; $(WINDRES) $< $@
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-OBJCOPY_CMD = $(QUIET_OBJCOPY) $(MKTGTDIR) ; $(LD) -r -b binary -z noexecstack -o $@ $<
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+OBJCOPY_CMD = $(QUIET_OBJCOPY) $(MKTGTDIR) ; $(CC) -Wl,-r -Wl,-b -Wl,binary -Wl,-z -Wl,noexecstack -nostdlib -o $@ $<
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# --- Rules ---
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--
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2.33.0
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