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golang: Add support for ASLR/PIE for host and target Go

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This adds support to compile host and target Go as position-independent
executables.

Host Go will have PIE enabled if Go supports PIE on the host platform.

Target Go will have PIE enabled if Go supports PIE on the target
platform and CONFIG_PKG_ASLR_PIE is selected.

Go 1.13 supports PIE for x86 and arm targets; mips support is in
progress[1].

[1]: https://github.com/golang/go/issues/21222#issuecomment-542064462

Signed-off-by: Jeffery To <jeffery.to@gmail.com>
This commit is contained in:
Jeffery To
2020-01-08 19:13:44 +08:00
parent 53603abaae
commit c377576734
3 changed files with 66 additions and 8 deletions
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26
lang/golang/golang-values.mk
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@@ -190,3 +190,29 @@ GO_ARCH_DEPENDS:=@(aarch64||arm||i386||i686||mips||mips64||mips64el||mipsel||pow
GO_TARGET_PREFIX:=/usr
GO_TARGET_VERSION_ID:=$(GO_VERSION_MAJOR_MINOR)
GO_TARGET_ROOT:=$(GO_TARGET_PREFIX)/lib/go-$(GO_TARGET_VERSION_ID)
# ASLR/PIE
GO_PIE_SUPPORTED_OS_ARCH:= \
android_386 android_amd64 android_arm android_arm64 \
linux_386 linux_amd64 linux_arm linux_arm64 \
\
darwin_amd64 \
freebsd_amd64 \
\
aix_ppc64 \
\
linux_ppc64le linux_s390x
go_pie_install_suffix=$(if $(filter $(1),aix_ppc64),,shared)
ifneq ($(filter $(GO_HOST_OS_ARCH),$(GO_PIE_SUPPORTED_OS_ARCH)),)
GO_HOST_PIE_SUPPORTED:=1
GO_HOST_PIE_INSTALL_SUFFIX:=$(call go_pie_install_suffix,$(GO_HOST_OS_ARCH))
endif
ifneq ($(filter $(GO_OS_ARCH),$(GO_PIE_SUPPORTED_OS_ARCH)),)
GO_TARGET_PIE_SUPPORTED:=1
GO_TARGET_PIE_INSTALL_SUFFIX:=$(call go_pie_install_suffix,$(GO_OS_ARCH))
endif