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commit 1f67d8286b5da9266a138198ef1f15c27cbb0010
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Author: H.J. Lu <hjl.tools@gmail.com>
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Date: Mon Nov 15 16:28:39 2021 -0800
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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
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tests and use -include on them.
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2. Add Makefile fragments to postclean-generated so that a "make clean"
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removes the autogenerated fragments and a subsequent "make" regenerates
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them.
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This partially fixes BZ #28550.
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Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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diff --git a/elf/Makefile b/elf/Makefile
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index 3b5e1f59e6696a2b..22a8060f7d3bb1a1 100644
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--- a/elf/Makefile
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+++ b/elf/Makefile
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@@ -986,6 +986,7 @@ tests-special += \
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# tests-special
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endif
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+ifndef avoid-generated
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# DSO sorting tests:
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# The dso-ordering-test.py script generates testcase source files in $(objpfx),
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# creating a $(objpfx)<testcase-name>-dir for each testcase, and creates a
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@@ -993,9 +994,14 @@ endif
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define include_dsosort_tests
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$(objpfx)$(1).generated-makefile: $(1)
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$(PYTHON) $(..)scripts/dso-ordering-test.py \
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- --description-file $$< --objpfx $(objpfx) --output-makefile $$@
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-include $(objpfx)$(1).generated-makefile
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+ --description-file $$< --objpfx $(objpfx) --output-makefile $$@T
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+ mv $$@T $$@
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+-include $(objpfx)$(1).generated-makefile
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endef
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+endif
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+
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+postclean-generated += $(objpfx)/dso-sort-tests-2.generated-makefile \
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+ $(objpfx)/dso-sort-tests-2.generated-makefile
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# Generate from each testcase description file
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ifeq (yes,$(have-tunables))
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