From f172456edcee41d37d182bdb6423247c90a1333f Mon Sep 17 00:00:00 2001 From: Yousong Zhou Date: Mon, 7 May 2018 11:50:45 +0800 Subject: [PATCH] toolchain: gccgo: fix building gccgo compiler Fixes FS#1498. "gccgo -static" can fail for missing linker flag -lgcc_eh caused by patch 850-use_shared_libgcc.patch Signed-off-by: Yousong Zhou --- ...ibffi-fix-MIPS-softfloat-build-issue.patch | 175 ++++++++++++++++++ ...mpilation-when-making-cross-compiler.patch | 73 ++++++++ 2 files changed, 248 insertions(+) create mode 100644 toolchain/gcc/patches/7.3.0/931-libffi-fix-MIPS-softfloat-build-issue.patch create mode 100644 toolchain/gcc/patches/7.3.0/960-gotools-fix-compilation-when-making-cross-compiler.patch diff --git a/toolchain/gcc/patches/7.3.0/931-libffi-fix-MIPS-softfloat-build-issue.patch b/toolchain/gcc/patches/7.3.0/931-libffi-fix-MIPS-softfloat-build-issue.patch new file mode 100644 index 0000000000..9d436efc18 --- /dev/null +++ b/toolchain/gcc/patches/7.3.0/931-libffi-fix-MIPS-softfloat-build-issue.patch @@ -0,0 +1,175 @@ +From c0c62fa4256f805389f16ebfc4a60cf789129b50 Mon Sep 17 00:00:00 2001 +From: BangLang Huang +Date: Wed, 9 Nov 2016 10:36:49 +0800 +Subject: [PATCH] libffi: fix MIPS softfloat build issue + +Backported from github.com/libffi/libffi#272 + +Signed-off-by: BangLang Huang +Signed-off-by: Yousong Zhou +--- + libffi/src/mips/n32.S | 17 +++++++++++++++++ + libffi/src/mips/o32.S | 17 +++++++++++++++++ + 2 files changed, 34 insertions(+) + +diff --git a/libffi/src/mips/n32.S b/libffi/src/mips/n32.S +index c6985d30a6f..8f25994773c 100644 +--- a/libffi/src/mips/n32.S ++++ b/libffi/src/mips/n32.S +@@ -107,6 +107,16 @@ loadregs: + + REG_L t6, 3*FFI_SIZEOF_ARG($fp) # load the flags word into t6. + ++#ifdef __mips_soft_float ++ REG_L a0, 0*FFI_SIZEOF_ARG(t9) ++ REG_L a1, 1*FFI_SIZEOF_ARG(t9) ++ REG_L a2, 2*FFI_SIZEOF_ARG(t9) ++ REG_L a3, 3*FFI_SIZEOF_ARG(t9) ++ REG_L a4, 4*FFI_SIZEOF_ARG(t9) ++ REG_L a5, 5*FFI_SIZEOF_ARG(t9) ++ REG_L a6, 6*FFI_SIZEOF_ARG(t9) ++ REG_L a7, 7*FFI_SIZEOF_ARG(t9) ++#else + and t4, t6, ((1< +Date: Fri, 4 May 2018 18:20:53 +0800 +Subject: [PATCH] gotools: fix compilation when making cross compiler + +libgo is "the runtime support library for the Go programming language. +This library is intended for use with the Go frontend." + +gccgo will link target files with libgo.so which depends on libgcc_s.so.1, but +the linker will complain that it cannot find it. That's because shared libgcc +is not present in the install directory yet. libgo.so was made without problem +because gcc will emit -lgcc_s when compiled with -shared option. When gotools +were being made, it was supplied with -static-libgcc thus no link option was +provided. Check LIBGO in gcc/go/gcc-spec.c for how gccgo make a builtin spec +for linking with libgo.so + +- GccgoCrossCompilation, https://github.com/golang/go/wiki/GccgoCrossCompilation +- Cross-building instructions, http://www.eglibc.org/archives/patches/msg00078.html + +When 3-pass GCC compilation is used, shared libgcc runtime libraries will be +available after gcc pass2 completed and will meet the gotools link requirement +at gcc pass3 +--- + gotools/Makefile.am | 4 +++- + gotools/Makefile.in | 4 +++- + 2 files changed, 6 insertions(+), 2 deletions(-) + +diff --git a/gotools/Makefile.am b/gotools/Makefile.am +index 5f3940a278b..9c22f5df103 100644 +--- a/gotools/Makefile.am ++++ b/gotools/Makefile.am +@@ -26,6 +26,7 @@ PWD_COMMAND = $${PWDCMD-pwd} + STAMP = echo timestamp > + + libgodir = ../$(target_noncanonical)/libgo ++libgccdir = ../$(target_noncanonical)/libgcc + LIBGODEP = $(libgodir)/libgo.la + + if NATIVE +@@ -38,7 +39,8 @@ endif + GOCFLAGS = $(CFLAGS_FOR_TARGET) + GOCOMPILE = $(GOCOMPILER) $(GOCFLAGS) + +-AM_LDFLAGS = -L $(libgodir) -L $(libgodir)/.libs ++AM_LDFLAGS = -L $(libgodir) -L $(libgodir)/.libs \ ++ -L $(libgccdir) -L $(libgccdir)/.libs -lgcc_s + GOLINK = $(GOCOMPILER) $(GOCFLAGS) $(AM_GOCFLAGS) $(LDFLAGS) $(AM_LDFLAGS) -o $@ + + cmdsrcdir = $(srcdir)/../libgo/go/cmd +diff --git a/gotools/Makefile.in b/gotools/Makefile.in +index 4386576b011..0bdd9290e01 100644 +--- a/gotools/Makefile.in ++++ b/gotools/Makefile.in +@@ -252,13 +252,15 @@ mkinstalldirs = $(SHELL) $(toplevel_srcdir)/mkinstalldirs + PWD_COMMAND = $${PWDCMD-pwd} + STAMP = echo timestamp > + libgodir = ../$(target_noncanonical)/libgo ++libgccdir = ../$(target_noncanonical)/libgcc + LIBGODEP = $(libgodir)/libgo.la + @NATIVE_FALSE@GOCOMPILER = $(GOC) + + # Use the compiler we just built. + @NATIVE_TRUE@GOCOMPILER = $(GOC_FOR_TARGET) $(XGCC_FLAGS_FOR_TARGET) + GOCOMPILE = $(GOCOMPILER) $(GOCFLAGS) +-AM_LDFLAGS = -L $(libgodir) -L $(libgodir)/.libs ++AM_LDFLAGS = -L $(libgodir) -L $(libgodir)/.libs \ ++ -L $(libgccdir) -L $(libgccdir)/.libs -lgcc_s + GOLINK = $(GOCOMPILER) $(GOCFLAGS) $(AM_GOCFLAGS) $(LDFLAGS) $(AM_LDFLAGS) -o $@ + cmdsrcdir = $(srcdir)/../libgo/go/cmd + go_cmd_go_files = \ +-- +2.16.3 +