elf: Add more DT_RELR tests
Verify that: 1. A DT_RELR shared library without DT_NEEDED works. 2. A DT_RELR shared library without DT_VERNEED works. 3. A DT_RELR shared library without libc.so on DT_NEEDED works.
This commit is contained in:
H.J. Lu
parent
60196d2ef2
commit
4ada564f35
76
elf/Makefile
76
elf/Makefile
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@ -545,7 +545,20 @@ endif
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ifeq ($(have-dt-relr),yes)
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tests += \
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tst-relr \
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tst-relr2 \
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tst-relr3 \
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tst-relr4 \
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# tests
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modules-names-dt-relr = \
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tst-relr-mod2 \
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tst-relr-mod3a \
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tst-relr-mod3b \
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tst-relr-mod4a \
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tst-relr-mod4b \
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# modules-names-dt-relr
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modules-names += $(modules-names-dt-relr)
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# These shared libraries have special build rules.
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modules-names-nobuild += $(modules-names-dt-relr)
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ifeq ($(have-fpie),yes)
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tests += \
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tst-relr-pie \
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@ -560,6 +573,11 @@ endif
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CFLAGS-tst-relr-pie.c += $(pie-ccflag)
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LDFLAGS-tst-relr += -Wl,-z,pack-relative-relocs
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LDFLAGS-tst-relr-pie += -Wl,-z,pack-relative-relocs
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CFLAGS-tst-relr-mod2.c += $(no-stack-protector)
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CFLAGS-tst-relr-mod3a.c += $(no-stack-protector)
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CFLAGS-tst-relr-mod3b.c += $(no-stack-protector)
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CFLAGS-tst-relr-mod4a.c += $(no-stack-protector)
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CFLAGS-tst-relr-mod4b.c += $(no-stack-protector)
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endif
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endif
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@ -637,7 +655,7 @@ test-extras += \
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tst-tlsmod17a \
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tst-tlsmod18a \
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# test-extras
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modules-names = \
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modules-names += \
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circlemod1 \
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circlemod1a \
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circlemod2 \
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@ -1008,8 +1026,13 @@ extra-test-objs += $(addsuffix .os,$(strip $(modules-names)))
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# filtmod1.so, tst-big-note-lib.so, tst-ro-dynamic-mod.so have special
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# rules.
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modules-names-nobuild := filtmod1 tst-big-note-lib tst-ro-dynamic-mod \
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tst-audit24bmod1 tst-audit24bmod2
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modules-names-nobuild += \
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filtmod1 \
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tst-audit24bmod1 \
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tst-audit24bmod2 \
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tst-big-note-lib \
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tst-ro-dynamic-mod \
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# modules-names-nobuild
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tests += $(tests-static)
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@ -2814,3 +2837,50 @@ $(objpfx)check-tst-relr-pie.out: $(objpfx)tst-relr-pie
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| sed -ne '/required from libc.so/,$$ p' \
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| grep GLIBC_ABI_DT_RELR > $@; \
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$(evaluate-test)
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# The test checks if a DT_RELR shared library without DT_NEEDED works as
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# intended, so it uses an explicit link rule.
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$(objpfx)tst-relr2: $(objpfx)tst-relr-mod2.so
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$(objpfx)tst-relr-mod2.so: $(objpfx)tst-relr-mod2.os
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$(LINK.o) -nostdlib -nostartfiles -Wl,-z,pack-relative-relocs \
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$(LDFLAGS-soname-fname) \
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-shared -o $@.new $(filter-out $(map-file),$^)
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$(call after-link,$@.new)
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mv -f $@.new $@
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# The test checks if a DT_RELR shared library without DT_VERNEED works as
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# intended, so it uses an explicit link rule.
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$(objpfx)tst-relr3: $(objpfx)tst-relr-mod3a.so
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$(objpfx)tst-relr-mod3b.so: $(objpfx)tst-relr-mod3b.os
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$(LINK.o) -nostdlib -nostartfiles -Wl,-z,pack-relative-relocs \
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$(LDFLAGS-soname-fname) \
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-shared -o $@.new $(filter-out $(map-file),$^)
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$(call after-link,$@.new)
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mv -f $@.new $@
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$(objpfx)tst-relr-mod3a.so: $(objpfx)tst-relr-mod3a.os \
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$(objpfx)tst-relr-mod3b.so
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$(LINK.o) -nostdlib -nostartfiles -Wl,-z,pack-relative-relocs \
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$(LDFLAGS-soname-fname) \
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-shared -o $@.new $(filter-out $(map-file),$^)
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$(call after-link,$@.new)
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mv -f $@.new $@
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# The test checks if a DT_RELR shared library without libc.so on DT_NEEDED
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# works as intended, so it uses an explicit link rule.
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$(objpfx)tst-relr4: $(objpfx)tst-relr-mod4a.so
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$(objpfx)tst-relr-mod4b.so: $(objpfx)tst-relr-mod4b.os
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$(LINK.o) -nostdlib -nostartfiles -Wl,-z,pack-relative-relocs \
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$(LDFLAGS-soname-fname) \
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-Wl,--version-script=tst-relr-mod4b.map \
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-shared -o $@.new $(filter-out $(map-file),$^)
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$(call after-link,$@.new)
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mv -f $@.new $@
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$(objpfx)tst-relr-mod4a.so: $(objpfx)tst-relr-mod4a.os \
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$(objpfx)tst-relr-mod4b.so
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$(LINK.o) -nostdlib -nostartfiles -Wl,-z,pack-relative-relocs \
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$(LDFLAGS-soname-fname) \
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-shared -o $@.new $(filter-out $(map-file),$^)
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$(call after-link,$@.new)
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mv -f $@.new $@
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@ -0,0 +1,46 @@
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/* Test for DT_RELR in a shared library without DT_NEEDED.
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Copyright (C) 2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <array_length.h>
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static int o, x;
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#define ELEMS O O O O O O O O X X X X X X X O O X O O X X X E X E E O X O E
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#define E 0,
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#define O &o,
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#define X &x,
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void *arr[] = { ELEMS };
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#undef O
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#undef X
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#define O 1,
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#define X 2,
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static char val[] = { ELEMS };
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int
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foo (void)
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{
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int err = 0;
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for (int i = 0; i < array_length (arr); i++)
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if (!((arr[i] == 0 && val[i] == 0)
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|| (arr[i] == &o && val[i] == 1)
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|| (arr[i] == &x && val[i] == 2)))
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err++;
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return err;
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}
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@ -0,0 +1,49 @@
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/* Test for DT_RELR in a shared library without DT_VERNEED.
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Copyright (C) 2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <array_length.h>
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static int o, x;
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#define ELEMS O O O O O O O O X X X X X X X O O X O O X X X E X E E O X O E
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#define E 0,
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#define O &o,
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#define X &x,
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void *arr[] = { ELEMS };
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#undef O
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#undef X
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#define O 1,
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#define X 2,
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static char val[] = { ELEMS };
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extern void bar (void);
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int
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foo (void)
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{
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int err = 0;
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for (int i = 0; i < array_length (arr); i++)
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if (!((arr[i] == 0 && val[i] == 0)
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|| (arr[i] == &o && val[i] == 1)
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|| (arr[i] == &x && val[i] == 2)))
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err++;
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bar ();
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return err;
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}
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@ -0,0 +1,22 @@
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/* Test for DT_RELR in a shared library without DT_VERNEED.
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Copyright (C) 2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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void
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bar (void)
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{
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}
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@ -0,0 +1,19 @@
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/* Test for DT_RELR in a shared library without libc.so on DT_NEEDED.
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Copyright (C) 2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include "tst-relr-mod3a.c"
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@ -0,0 +1,19 @@
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/* Test for DT_RELR in a shared library without libc.so on DT_NEEDED.
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Copyright (C) 2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include "tst-relr-mod3b.c"
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@ -0,0 +1,3 @@
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DT_RELR {
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global: bar;
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};
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@ -0,0 +1,27 @@
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/* Test for DT_RELR in a shared library without DT_NEEDED.
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Copyright (C) 2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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extern int foo (void);
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static int
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do_test (void)
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{
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return foo ();
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}
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#include <support/test-driver.c>
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@ -0,0 +1,27 @@
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/* Test for DT_RELR in a shared library without libc.so on DT_NEEDED.
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Copyright (C) 2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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extern int foo (void);
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static int
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do_test (void)
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{
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return foo ();
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}
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#include <support/test-driver.c>
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@ -0,0 +1 @@
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#include "tst-relr3.c"
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