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Diffstat (limited to 'tools/testing/selftests/vm/Makefile')
| -rw-r--r-- | tools/testing/selftests/vm/Makefile | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/tools/testing/selftests/vm/Makefile b/tools/testing/selftests/vm/Makefile index a9026706d597..30873b19d04b 100644 --- a/tools/testing/selftests/vm/Makefile +++ b/tools/testing/selftests/vm/Makefile @@ -3,6 +3,23 @@ uname_M := $(shell uname -m 2>/dev/null || echo not) MACHINE ?= $(shell echo $(uname_M) | sed -e 's/aarch64.*/arm64/') +# Without this, failed build products remain, with up-to-date timestamps, +# thus tricking Make (and you!) into believing that All Is Well, in subsequent +# make invocations: +.DELETE_ON_ERROR: + +# Avoid accidental wrong builds, due to built-in rules working just a little +# bit too well--but not quite as well as required for our situation here. +# +# In other words, "make userfaultfd" is supposed to fail to build at all, +# because this Makefile only supports either "make" (all), or "make /full/path". +# However, the built-in rules, if not suppressed, will pick up CFLAGS and the +# initial LDLIBS (but not the target-specific LDLIBS, because those are only +# set for the full path target!). This causes it to get pretty far into building +# things despite using incorrect values such as an *occasionally* incomplete +# LDLIBS. +MAKEFLAGS += --no-builtin-rules + CFLAGS = -Wall -I ../../../../usr/include $(EXTRA_CFLAGS) LDLIBS = -lrt TEST_GEN_FILES = compaction_test |