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206e22f019
This produces a PIE binary with a variety of p_align requirements, suitable for verifying that the load address meets that alignment requirement. Signed-off-by: Chris Kennelly <ckennelly@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Shuah Khan <shuah@kernel.org> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: David Rientjes <rientjes@google.com> Cc: Fangrui Song <maskray@google.com> Cc: Hugh Dickens <hughd@google.com> Cc: Ian Rogers <irogers@google.com> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Sandeep Patil <sspatil@google.com> Cc: Song Liu <songliubraving@fb.com> Cc: Suren Baghdasaryan <surenb@google.com> Link: https://lkml.kernel.org/r/20200820170541.1132271-3-ckennelly@google.com Link: https://lkml.kernel.org/r/20200821233848.3904680-3-ckennelly@google.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
36 lines
1.2 KiB
Makefile
36 lines
1.2 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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CFLAGS = -Wall
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CFLAGS += -Wno-nonnull
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CFLAGS += -D_GNU_SOURCE
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TEST_PROGS := binfmt_script non-regular
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TEST_GEN_PROGS := execveat load_address_4096 load_address_2097152 load_address_16777216
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TEST_GEN_FILES := execveat.symlink execveat.denatured script subdir pipe
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# Makefile is a run-time dependency, since it's accessed by the execveat test
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TEST_FILES := Makefile
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TEST_GEN_PROGS += recursion-depth
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EXTRA_CLEAN := $(OUTPUT)/subdir.moved $(OUTPUT)/execveat.moved $(OUTPUT)/xxxxx* \
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$(OUTPUT)/S_I*.test
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include ../lib.mk
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$(OUTPUT)/subdir:
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mkdir -p $@
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$(OUTPUT)/script:
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echo '#!/bin/sh' > $@
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echo 'exit $$*' >> $@
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chmod +x $@
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$(OUTPUT)/execveat.symlink: $(OUTPUT)/execveat
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cd $(OUTPUT) && ln -s -f $(shell basename $<) $(shell basename $@)
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$(OUTPUT)/execveat.denatured: $(OUTPUT)/execveat
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cp $< $@
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chmod -x $@
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$(OUTPUT)/load_address_4096: load_address.c
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$(CC) $(CFLAGS) $(LDFLAGS) -Wl,-z,max-page-size=0x1000 -pie $< -o $@
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$(OUTPUT)/load_address_2097152: load_address.c
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$(CC) $(CFLAGS) $(LDFLAGS) -Wl,-z,max-page-size=0x200000 -pie $< -o $@
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$(OUTPUT)/load_address_16777216: load_address.c
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$(CC) $(CFLAGS) $(LDFLAGS) -Wl,-z,max-page-size=0x1000000 -pie $< -o $@
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