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commit 9536661c6e8045f810cd227a7d676eaff19bf1b8
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Author: Joseph Myers <joseph@codesourcery.com>
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Date: Wed Aug 19 00:51:07 2015 +0000
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Fix -Wundef warnings in elf/tst-execstack.c.
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To remove -Wno-error=undef, we need to fix the remaining cases where
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there are -Wundef warnings in the testsuite. One of those places is
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in elf/tst-execstack.c.
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tst-execstack.c tests USE_PTHREADS with #if. nptl/tst-execstack.c
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defines USE_PTHREADS to 1 before including ../elf/tst-execstack.c,
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while elf/tst-execstack.c, when compiled directly, leaves it
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undefined.
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This patch adds a setting of CPPFLAGS-tst-execstack.c to
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elf/Makefile. An alternative approach would be to rename
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tst-execstack.c to tst-execstack-main.c and have two different
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tst-execstack.c files include it, each with an appropriate
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USE_PTHREADS #define.
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Tested for x86_64.
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* elf/Makefile [$(have-z-execstack) = yes]
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(CPPFLAGS-tst-execstack.c): New variable.
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diff --git a/elf/Makefile b/elf/Makefile
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index 862e04eb484fa3f5..dea66ca1c12e5c29 100644
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--- a/elf/Makefile
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+++ b/elf/Makefile
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@@ -866,6 +866,7 @@ endif
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ifeq ($(have-z-execstack),yes)
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$(objpfx)tst-execstack: $(libdl)
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$(objpfx)tst-execstack.out: $(objpfx)tst-execstack-mod.so
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+CPPFLAGS-tst-execstack.c = -DUSE_PTHREADS=0
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LDFLAGS-tst-execstack = -Wl,-z,noexecstack
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LDFLAGS-tst-execstack-mod = -Wl,-z,execstack
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