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Automatically cross-test 32bit based on GOARCH 

Try to determine the corresponding 32bit architecture from the current
GOARCH and run the tests under that architecture. This only works on a
GOOS/GOARCH that can execute binaries for the smaller architecture, such
as running linux/386 binaries under linux/amd64.

I tested that this works under linux/amd64 and darwin/amd64, the rest of
the architectures is guesswork.

While we still only run regular tests on Intel/Linux architectures, this
covers general integer overflow issues like #629.
This commit is contained in:
Matthias Rampke 2017-08-21 16:46:43 +00:00
parent 8661bbbb42
commit 7420046383
1 changed files with 24 additions and 1 deletions
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25
Makefile
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@ -13,6 +13,7 @@
GO ?= GO15VENDOREXPERIMENT=1 go
GOPATH := $(firstword $(subst :, ,$(shell $(GO) env GOPATH)))
GOARCH := $(shell $(GO) env GOARCH)
PROMU ?= $(GOPATH)/bin/promu
STATICCHECK ?= $(GOPATH)/bin/staticcheck
@ -37,7 +38,22 @@ else
test-e2e := skip-test-e2e
endif
all: format vet staticcheck build test $(test-e2e)
# 64bit -> 32bit mapping for cross-checking. At least for amd64/386, the 64bit CPU can execute 32bit code but not the other way around, so we don't support cross-testing upwards.
cross-test = skip-test-32bit
define goarch_pair
ifeq ($$(GOARCH),$1)
GOARCH_CROSS = $2
cross-test = test-32bit
endif
endef
# By default, "cross" test with ourselves to cover unknown pairings.
$(eval $(call goarch_pair,amd64,386))
$(eval $(call goarch_pair,arm64,arm))
$(eval $(call goarch_pair,mips64,mips))
$(eval $(call goarch_pair,mips64el,mipsel))
all: format vet staticcheck build test $(cross-test) $(test-e2e)
style:
@echo ">> checking code style"
@ -47,6 +63,13 @@ test: collector/fixtures/sys/.unpacked
@echo ">> running tests"
@$(GO) test -short -race $(pkgs)
test-32bit: collector/fixtures/sys/.unpacked
@echo ">> running tests in 32-bit mode"
@env GOARCH=$(GOARCH_CROSS) $(GO) test $(pkgs)
skip-test-32bit:
@echo ">> SKIP running tests in 32-bit mode: not supported on $(GOARCH)"
collector/fixtures/sys/.unpacked: collector/fixtures/sys.ttar
./ttar -C collector/fixtures -x -f collector/fixtures/sys.ttar
touch $@