From: Adhemerval Zanella <adhemerval.zanella@linaro.org>
To: "H.J. Lu" <hjl.tools@gmail.com>, libc-alpha@sourceware.org
Cc: Florian Weimer <fweimer@redhat.com>
Subject: Re: [PATCH v7 3/4] elf: Add a test for PT_LOAD segments with p_align == 1 [BZ #28688]
Date: Tue, 18 Jan 2022 13:32:04 -0300 [thread overview]
Message-ID: <b11a7b02-76a7-9142-ef6f-7b45c71d994f@linaro.org> (raw)
In-Reply-To: <20220103230433.1907240-4-hjl.tools@gmail.com>
On 03/01/2022 20:04, H.J. Lu wrote:
> Add tst-p_alignmod2-edit to edit the copy of tst-alignmod3.so to set
> p_align of the first PT_LOAD segment to 1 and verify that the shared
> library can be loaded normally.
> ---
> elf/Makefile | 13 +++++++++++++
> elf/tst-p_align2.c | 27 +++++++++++++++++++++++++++
> elf/tst-p_alignmod2-edit.c | 27 +++++++++++++++++++++++++++
> 3 files changed, 67 insertions(+)
> create mode 100644 elf/tst-p_align2.c
> create mode 100644 elf/tst-p_alignmod2-edit.c
>
> diff --git a/elf/Makefile b/elf/Makefile
> index 9c831faac1..e4be3fa518 100644
> --- a/elf/Makefile
> +++ b/elf/Makefile
> @@ -406,7 +406,9 @@ modules-names = testobj1 testobj2 testobj3 testobj4 testobj5 testobj6 \
> ifeq (yes,$(build-shared))
> tests += \
> tst-p_alignmod1-edit \
> + tst-p_alignmod2-edit \
> tst-p_align1 \
> + tst-p_align2 \
>
Maybe add a #test as final member?
> endif
>
> @@ -2097,3 +2099,14 @@ $(objpfx)tst-p_alignmod1.so: $(objpfx)tst-p_alignmod1-edit \
> cp $(objpfx)tst-alignmod3.so $@
> $(test-wrapper-env) $(run-program-env) $(rtld-prefix) \
> $(objpfx)tst-p_alignmod1-edit $@
> +
> +$(objpfx)tst-p_align2: $(objpfx)tst-p_alignmod2.so
> +
> +# Make a copy of tst-alignmod3.so and update p_align of the first PT_LOAD
> +# segment.
> +$(objpfx)tst-p_alignmod2.so: $(objpfx)tst-p_alignmod2-edit \
> + $(objpfx)tst-alignmod3.so
Same as previous patch, it uses tst-alignmod3.so which only defined in next one.
> + rm -f $@
> + cp $(objpfx)tst-alignmod3.so $@
> + $(test-wrapper-env) $(run-program-env) $(rtld-prefix) \
> + $(objpfx)tst-p_alignmod2-edit $@
> diff --git a/elf/tst-p_align2.c b/elf/tst-p_align2.c
> new file mode 100644
> index 0000000000..cab9793220
> --- /dev/null
> +++ b/elf/tst-p_align2.c
> @@ -0,0 +1,27 @@
> +/* Check different alignments of PT_LOAD segments in a shared library.
> + Copyright (C) 2021 Free Software Foundation, Inc.
Update the Copyright year.
> + This file is part of the GNU C Library.
> +
> + The GNU C Library is free software; you can redistribute it and/or
> + modify it under the terms of the GNU Lesser General Public
> + License as published by the Free Software Foundation; either
> + version 2.1 of the License, or (at your option) any later version.
> +
> + The GNU C Library is distributed in the hope that it will be useful,
> + but WITHOUT ANY WARRANTY; without even the implied warranty of
> + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> + Lesser General Public License for more details.
> +
> + You should have received a copy of the GNU Lesser General Public
> + License along with the GNU C Library; if not, see
> + <https://www.gnu.org/licenses/>. */
> +
> +extern int do_load_test (void);
> +
> +static int
> +do_test (void)
> +{
> + return do_load_test ();
> +}
> +
> +#include <support/test-driver.c>
> diff --git a/elf/tst-p_alignmod2-edit.c b/elf/tst-p_alignmod2-edit.c
> new file mode 100644
> index 0000000000..2f47b37c9e
> --- /dev/null
> +++ b/elf/tst-p_alignmod2-edit.c
> @@ -0,0 +1,27 @@
> +/* Set p_align of the first PT_LOAD segment to 1.
> + Copyright (C) 2021 Free Software Foundation, Inc.
> + This file is part of the GNU C Library.
> +
> + The GNU C Library is free software; you can redistribute it and/or
> + modify it under the terms of the GNU Lesser General Public
> + License as published by the Free Software Foundation; either
> + version 2.1 of the License, or (at your option) any later version.
> +
> + The GNU C Library is distributed in the hope that it will be useful,
> + but WITHOUT ANY WARRANTY; without even the implied warranty of
> + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> + Lesser General Public License for more details.
> +
> + You should have received a copy of the GNU Lesser General Public
> + License along with the GNU C Library; if not, see
> + <https://www.gnu.org/licenses/>. */
> +
> +#include "tst-elf-edit.h"
> +
> +/* Set p_align to 1. */
> +
> +static size_t
> +update_p_align (size_t p_align __attribute__ ((unused)))
> +{
> + return 1;
> +}
next prev parent reply other threads:[~2022-01-18 16:32 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-03 23:04 [PATCH v7 0/4] Properly align all PT_LOAD segments with tests H.J. Lu
2022-01-03 23:04 ` [PATCH v7 1/4] elf: Properly align all PT_LOAD segments [BZ #28676] H.J. Lu
2022-01-18 17:48 ` Adhemerval Zanella
2022-01-18 21:46 ` H.J. Lu
2022-01-03 23:04 ` [PATCH v7 2/4] elf: Add a test for PT_LOAD segments with mixed p_align " H.J. Lu
2022-01-18 16:25 ` Adhemerval Zanella
2022-01-18 21:53 ` H.J. Lu
2022-01-03 23:04 ` [PATCH v7 3/4] elf: Add a test for PT_LOAD segments with p_align == 1 [BZ #28688] H.J. Lu
2022-01-18 16:32 ` Adhemerval Zanella [this message]
2022-01-18 16:36 ` Adhemerval Zanella
2022-01-18 21:55 ` H.J. Lu
2022-01-03 23:04 ` [PATCH v7 4/4] elf: Add a test for PT_LOAD segments with invalid p_align " H.J. Lu
2022-01-18 18:05 ` Adhemerval Zanella
2022-01-18 21:50 ` H.J. Lu
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