gcc: optionally build gccgo compiler

Tested with eglibc on x86 and armv7 so far

Signed-off-by: Matteo Croce <matteo.croce@canonical.com>
This commit is contained in:
Matteo Croce 2016-07-15 12:17:20 +02:00 committed by Felix Fietkau
parent 1645abffea
commit 360fd10ac9
5 changed files with 49 additions and 2 deletions

View File

@ -70,3 +70,11 @@ config INSTALL_GFORTRAN
default n
help
Build/install GNU fortran compiler ?
config INSTALL_GCCGO
bool
prompt "Build/install Go compiler?" if TOOLCHAINOPTS
depends on !GCC_VERSION_4_8 && (USE_GLIBC || BROKEN)
default n
help
Build/install GNU gccgo compiler ?

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@ -69,12 +69,15 @@ HOST_STAMP_CONFIGURED:=$(GCC_BUILD_DIR)/.configured
HOST_STAMP_INSTALLED:=$(STAGING_DIR_HOST)/stamp/.gcc_$(GCC_VARIANT)_installed
SEP:=,
TARGET_LANGUAGES:="c,c++$(if $(CONFIG_INSTALL_LIBGCJ),$(SEP)java)$(if $(CONFIG_INSTALL_GFORTRAN),$(SEP)fortran)"
TARGET_LANGUAGES:="c,c++$(if $(CONFIG_INSTALL_LIBGCJ),$(SEP)java)$(if $(CONFIG_INSTALL_GFORTRAN),$(SEP)fortran)$(if $(CONFIG_INSTALL_GCCGO),$(SEP)go)"
export libgcc_cv_fixed_point=no
ifdef CONFIG_USE_UCLIBC
export glibcxx_cv_c99_math_tr1=no
endif
ifdef CONFIG_INSTALL_GCCGO
export libgo_cv_c_split_stack_supported=no
endif
ifdef CONFIG_GCC_USE_GRAPHITE
ifdef CONFIG_GCC_VERSION_4_8
@ -164,12 +167,17 @@ ifneq ($(CONFIG_SOFT_FLOAT),y)
endif
endif
ifeq ($(CONFIG_TARGET_x86)$(CONFIG_USE_GLIBC)$(CONFIG_INSTALL_GCCGO),yyy)
TARGET_CFLAGS+=-fno-split-stack
endif
GCC_MAKE:= \
export SHELL="$(BASH)"; \
$(MAKE) \
CFLAGS="$(HOST_CFLAGS)" \
CFLAGS_FOR_TARGET="$(TARGET_CFLAGS)" \
CXXFLAGS_FOR_TARGET="$(TARGET_CFLAGS)"
CXXFLAGS_FOR_TARGET="$(TARGET_CFLAGS)" \
GOCFLAGS_FOR_TARGET="$(TARGET_CFLAGS)"
define Host/SetToolchainInfo
$(SED) 's,TARGET_CROSS=.*,TARGET_CROSS=$(REAL_GNU_TARGET_NAME)-,' $(TOOLCHAIN_DIR)/info.mk

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@ -39,7 +39,16 @@ define Host/Configure
);
endef
ifeq ($(CONFIG_USE_GLIBC)$(CONFIG_INSTALL_GCCGO),yy)
define FixGogccCrt
# link crtX.o for gotools
mkdir -p $(GCC_BUILD_DIR)/gotools
$(foreach crt, i 1 n, ln -sf ../../glibc-dev/lib/crt$(crt).o $(GCC_BUILD_DIR)/gotools/ ; )
endef
endif
define Host/Compile
$(FixGogccCrt)
+$(GCC_MAKE) $(HOST_JOBS) -C $(GCC_BUILD_DIR) all
endef

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@ -0,0 +1,11 @@
--- a/gcc/go/Make-lang.in
+++ b/gcc/go/Make-lang.in
@@ -74,7 +74,7 @@ go_OBJS = $(GO_OBJS) go/gospec.o
go1$(exeext): $(GO_OBJS) attribs.o $(BACKEND) $(LIBDEPS)
+$(LLINKER) $(ALL_LINKERFLAGS) $(LDFLAGS) -o $@ \
- $(GO_OBJS) attribs.o $(BACKEND) $(LIBS) $(BACKENDLIBS)
+ $(GO_OBJS) attribs.o $(BACKEND) $(LIBS) $(BACKENDLIBS) -lm
# Documentation.

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@ -0,0 +1,11 @@
--- a/libgo/runtime/mprof.goc
+++ b/libgo/runtime/mprof.goc
@@ -403,7 +403,7 @@ func ThreadCreateProfile(p Slice) (n int
func Stack(b Slice, all bool) (n int) {
byte *pc, *sp;
- bool enablegc;
+ bool enablegc = false; /* workaround GCC bug #36550 */
sp = runtime_getcallersp(&b);
pc = (byte*)(uintptr)runtime_getcallerpc(&b);