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elf: Use a temporary file to generate Makefile fragments [BZ #28550]

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1. Use a temporary file to generate Makefile fragments for DSO sorting
tests and use -include on them.
2. Add Makefile fragments to postclean-generated so that a "make clean"
removes the autogenerated fragments and a subsequent "make" regenerates
them.

This partially fixes BZ #28550.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
This commit is contained in:
H.J. Lu 2021-11-15 16:28:39 -08:00
parent b4bbedb1e7
commit 1f67d8286b
1 changed files with 8 additions and 2 deletions
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10
elf/Makefile
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@ -491,6 +491,7 @@ tests-special += $(objpfx)order-cmp.out $(objpfx)tst-array1-cmp.out \
$(objpfx)tst-unused-dep-cmp.out
endif
ifndef avoid-generated
# DSO sorting tests:
# The dso-ordering-test.py script generates testcase source files in $(objpfx),
# creating a $(objpfx)<testcase-name>-dir for each testcase, and creates a
@ -498,9 +499,14 @@ endif
define include_dsosort_tests
$(objpfx)$(1).generated-makefile: $(1)
$(PYTHON) $(..)scripts/dso-ordering-test.py \
--description-file $$< --objpfx $(objpfx) --output-makefile $$@
include $(objpfx)$(1).generated-makefile
--description-file $$< --objpfx $(objpfx) --output-makefile $$@T
mv $$@T $$@
-include $(objpfx)$(1).generated-makefile
endef
endif
postclean-generated += $(objpfx)/dso-sort-tests-2.generated-makefile \
$(objpfx)/dso-sort-tests-2.generated-makefile
# Generate from each testcase description file
ifeq (yes,$(have-tunables))