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golang: Set/reset default platform options for target Go compiler

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Because the first stage for building target Go is actually a host build,
the default platform options (GO386, GOARM, etc.) are detected from the
host. These values are written to a source file and kept when building
the second stage.

This modifies this source file to set the appropriate values for the
target platform, and reset values for other platforms to their
cross-compiling / most compatible defaults.

Signed-off-by: Jeffery To <jeffery.to@gmail.com>
(cherry picked from commit da3fb97b9c)
This commit is contained in:
Jeffery To 2020-05-14 17:45:18 +08:00
parent f52fbe1d49
commit d3762591da
1 changed files with 12 additions and 0 deletions
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12
lang/golang/golang/Makefile
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@ -148,6 +148,13 @@ This package provides the Go programming language source files needed
for cross-compilation.
endef
PKG_GO_ZBOOTSTRAP_MODS:= \
s/defaultGO386 = `[^`]*`/defaultGO386 = `$(if $(GO_386),$(GO_386),387)`/; \
s/defaultGOARM = `[^`]*`/defaultGOARM = `$(if $(GO_ARM),$(GO_ARM),5)`/; \
s/defaultGOMIPS = `[^`]*`/defaultGOMIPS = `$(if $(GO_MIPS),$(GO_MIPS),hardfloat)`/; \
s/defaultGOMIPS64 = `[^`]*`/defaultGOMIPS64 = `$(if $(GO_MIPS64),$(GO_MIPS64),hardfloat)`/; \
s/defaultGOPPC64 = `[^`]*`/defaultGOPPC64 = `power8`/;
define Download/golang-bootstrap
FILE:=$(BOOTSTRAP_SOURCE)
URL:=$(BOOTSTRAP_SOURCE_URL)
@ -233,6 +240,11 @@ define Build/Compile
PATH=$(HOST_GO_ROOT)/openwrt:$$$$PATH \
)
ifneq ($(PKG_GO_ZBOOTSTRAP_MODS),)
$(SED) '$(PKG_GO_ZBOOTSTRAP_MODS)' \
$(PKG_BUILD_DIR)/src/cmd/internal/objabi/zbootstrap.go
endif
@echo "Building target Go second stage"
( \