This is the mail archive of the
elfutils-devel@sourceware.org
mailing list for the elfutils project.
[PATCH 1/4] libdwelf: Add dwelf_scn_getchdr and dwelf_scn_gnu_compressed_size.
- From: Mark Wielaard <mjw at redhat dot com>
- To: elfutils-devel at lists dot fedorahosted dot org
- Date: Mon, 02 Nov 2015 16:58:28 +0100
- Subject: [PATCH 1/4] libdwelf: Add dwelf_scn_getchdr and dwelf_scn_gnu_compressed_size.
Utility functions to get the ELF Chdr compression header of a section
and the size of the uncompressed data in GNU compressed .zdebug sections.
Signed-off-by: Mark Wielaard <mjw@redhat.com>
---
libdw/ChangeLog | 5 ++
libdw/libdw.map | 6 ++
libdwelf/ChangeLog | 10 +++
libdwelf/Makefile.am | 5 +-
libdwelf/dwelf_scn_getchdr.c | 116 ++++++++++++++++++++++++++
libdwelf/dwelf_scn_gnu_compressed_size.c | 77 +++++++++++++++++
libdwelf/libdwelf.h | 18 +++-
tests/ChangeLog | 14 ++++
tests/Makefile.am | 10 ++-
tests/dwelfgetchdr.c | 123 ++++++++++++++++++++++++++++
tests/run-dwelfgetchdr.sh | 136 +++++++++++++++++++++++++++++++
tests/testfile-zgabi32.bz2 | Bin 0 -> 767 bytes
tests/testfile-zgabi64.bz2 | Bin 0 -> 795 bytes
tests/testfile-zgnu32.bz2 | Bin 0 -> 780 bytes
tests/testfile-zgnu64.bz2 | Bin 0 -> 785 bytes
15 files changed, 514 insertions(+), 6 deletions(-)
create mode 100644 libdwelf/dwelf_scn_getchdr.c
create mode 100644 libdwelf/dwelf_scn_gnu_compressed_size.c
create mode 100644 tests/dwelfgetchdr.c
create mode 100755 tests/run-dwelfgetchdr.sh
create mode 100755 tests/testfile-zgabi32.bz2
create mode 100755 tests/testfile-zgabi64.bz2
create mode 100755 tests/testfile-zgnu32.bz2
create mode 100755 tests/testfile-zgnu64.bz2
diff --git a/libdw/ChangeLog b/libdw/ChangeLog
index 99ec2e8..f057421 100644
--- a/libdw/ChangeLog
+++ b/libdw/ChangeLog
@@ -1,3 +1,8 @@
+2015-10-28 Mark Wielaard <mjw@redhat.com>
+
+ * libdw.map (ELFUTILS_0.165): New. Add dwelf_scn_getchdr and
+ dwelf_scn_gnu_compressed_size.
+
2015-10-16 Mark Wielaard <mjw@redhat.com>
* Makefile.am (libdw.so): Add -lz.
diff --git a/libdw/libdw.map b/libdw/libdw.map
index 1d4cbb0..6483b65 100644
--- a/libdw/libdw.map
+++ b/libdw/libdw.map
@@ -322,3 +322,9 @@ ELFUTILS_0.161 {
dwarf_macro_getparamcnt;
dwarf_macro_param;
} ELFUTILS_0.160;
+
+ELFUTILS_0.165 {
+ global:
+ dwelf_scn_getchdr;
+ dwelf_scn_gnu_compressed_size;
+} ELFUTILS_0.161;
diff --git a/libdwelf/ChangeLog b/libdwelf/ChangeLog
index f182ecf..621a6ff 100644
--- a/libdwelf/ChangeLog
+++ b/libdwelf/ChangeLog
@@ -1,3 +1,13 @@
+2015-10-28 Mark Wielaard <mjw@redhat.com>
+
+ * Makefile.am (libdwelf_a_SOURCES): Add dwelf_scn_getchdr.c and
+ dwelf_scn_gnu_compressed_size.c.
+ * dwelf_scn_getchdr.c: New file.
+ * dwelf_scn_gnu_compressed_size.c: Likewise.
+ * libdwelf.h (DWElf_Chdr): New typedef.
+ (dwelf_scn_getchdr): New declaration.
+ (dwelf_scn_gnu_compressed_size): Likewise.
+
2015-10-14 Chih-Hung Hsieh <chh@google.com>
* dwelf_elf_gnu_build_id.c (find_elf_build_id): Move nested function
diff --git a/libdwelf/Makefile.am b/libdwelf/Makefile.am
index cd4b7dd..763e00b 100644
--- a/libdwelf/Makefile.am
+++ b/libdwelf/Makefile.am
@@ -2,7 +2,7 @@
##
## Process this file with automake to create Makefile.in
##
-## Copyright (C) 2014 Red Hat, Inc.
+## Copyright (C) 2014, 2015 Red Hat, Inc.
## This file is part of elfutils.
##
## This file is free software; you can redistribute it and/or modify
@@ -40,7 +40,8 @@ pkginclude_HEADERS = libdwelf.h
noinst_HEADERS = libdwelfP.h
libdwelf_a_SOURCES = dwelf_elf_gnu_debuglink.c dwelf_dwarf_gnu_debugaltlink.c \
- dwelf_elf_gnu_build_id.c
+ dwelf_elf_gnu_build_id.c dwelf_scn_getchdr.c \
+ dwelf_scn_gnu_compressed_size.c
libdwelf = $(libdw)
diff --git a/libdwelf/dwelf_scn_getchdr.c b/libdwelf/dwelf_scn_getchdr.c
new file mode 100644
index 0000000..778049a
--- /dev/null
+++ b/libdwelf/dwelf_scn_getchdr.c
@@ -0,0 +1,116 @@
+/* Return section compression header.
+ Copyright (C) 2015 Red Hat, Inc.
+ This file is part of elfutils.
+
+ This file is free software; you can redistribute it and/or modify
+ it under the terms of either
+
+ * the GNU Lesser General Public License as published by the Free
+ Software Foundation; either version 3 of the License, or (at
+ your option) any later version
+
+ or
+
+ * the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at
+ your option) any later version
+
+ or both in parallel, as here.
+
+ elfutils 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
+ General Public License for more details.
+
+ You should have received copies of the GNU General Public License and
+ the GNU Lesser General Public License along with this program. If
+ not, see <http://www.gnu.org/licenses/>. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "libdwelfP.h"
+#include "libelfP.h"
+#include <gelf.h>
+#include "common.h"
+
+DWElf_Chdr *
+dwelf_scn_getchdr (Elf_Scn *scn, DWElf_Chdr *dest)
+{
+ if (scn == NULL || dest == NULL)
+ return NULL;
+
+ GElf_Ehdr ehdr;
+ if (gelf_getehdr (scn->elf, &ehdr) == NULL)
+ return NULL;
+
+ GElf_Shdr shdr;
+ if (gelf_getshdr (scn, &shdr) == NULL)
+ return NULL;
+
+ /* Allocated or no bits sections can never be compressed. */
+ if ((shdr.sh_flags & SHF_ALLOC) != 0
+ || shdr.sh_type == SHT_NULL
+ || shdr.sh_type == SHT_NOBITS
+ || (shdr.sh_flags & SHF_COMPRESSED) == 0)
+ return NULL;
+
+ Elf_Data *data = elf_rawdata (scn, NULL);
+ if (data == NULL)
+ return NULL;
+
+ if (scn->elf->class == ELFCLASS32)
+ {
+ if (data->d_size < sizeof (Elf32_Chdr))
+ return NULL;
+
+ Elf32_Chdr chdr;
+ if (ehdr.e_ident[EI_DATA] == MY_ELFDATA
+ && (ALLOW_UNALIGNED
+ || (((uintptr_t) data->d_buf & (__alignof__ (Elf32_Chdr) - 1))
+ == 0)))
+ chdr = *(Elf32_Chdr *) data->d_buf;
+ else
+ memcpy (&chdr, data->d_buf, sizeof (Elf32_Chdr));
+
+ if (ehdr.e_ident[EI_DATA] == MY_ELFDATA)
+ {
+ dest->ch_type = chdr.ch_type;
+ dest->ch_reserved = 0;
+ dest->ch_size = chdr.ch_size;
+ dest->ch_addralign = chdr.ch_addralign;
+ }
+ else
+ {
+ CONVERT_TO (dest->ch_type, chdr.ch_type);
+ dest->ch_reserved = 0;
+ CONVERT_TO (dest->ch_size, chdr.ch_size);
+ CONVERT_TO (dest->ch_addralign, chdr.ch_addralign);
+ }
+ }
+ else
+ {
+ if (data->d_size < sizeof (Elf64_Chdr))
+ return NULL;
+
+ if (ehdr.e_ident[EI_DATA] == MY_ELFDATA
+ && (ALLOW_UNALIGNED
+ || (((uintptr_t) data->d_buf & (__alignof__ (Elf64_Chdr) - 1))
+ == 0)))
+ *dest = *(Elf64_Chdr *) data->d_buf;
+ else
+ {
+ memcpy (dest, data->d_buf, sizeof (Elf64_Chdr));
+ if (ehdr.e_ident[EI_DATA] != MY_ELFDATA)
+ {
+ CONVERT (dest->ch_type);
+ CONVERT (dest->ch_reserved);
+ CONVERT (dest->ch_size);
+ CONVERT (dest->ch_addralign);
+ }
+ }
+ }
+
+ return dest;
+}
diff --git a/libdwelf/dwelf_scn_gnu_compressed_size.c b/libdwelf/dwelf_scn_gnu_compressed_size.c
new file mode 100644
index 0000000..d39b702
--- /dev/null
+++ b/libdwelf/dwelf_scn_gnu_compressed_size.c
@@ -0,0 +1,77 @@
+/* Return size of GNU compressed section.
+ Copyright (C) 2015 Red Hat, Inc.
+ This file is part of elfutils.
+
+ This file is free software; you can redistribute it and/or modify
+ it under the terms of either
+
+ * the GNU Lesser General Public License as published by the Free
+ Software Foundation; either version 3 of the License, or (at
+ your option) any later version
+
+ or
+
+ * the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at
+ your option) any later version
+
+ or both in parallel, as here.
+
+ elfutils 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
+ General Public License for more details.
+
+ You should have received copies of the GNU General Public License and
+ the GNU Lesser General Public License along with this program. If
+ not, see <http://www.gnu.org/licenses/>. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "libdwelfP.h"
+#include "libelfP.h"
+
+ssize_t
+dwelf_scn_gnu_compressed_size (Elf_Scn *scn)
+{
+ if (scn == NULL)
+ return -1;
+
+ GElf_Shdr shdr;
+ if (gelf_getshdr (scn, &shdr) == NULL)
+ return -1;
+
+ /* Allocated or no bits sections can never be compressed. */
+ if ((shdr.sh_flags & SHF_ALLOC) != 0
+ || shdr.sh_type == SHT_NULL
+ || shdr.sh_type == SHT_NOBITS)
+ return -1;
+
+ Elf_Data *d = elf_rawdata (scn, NULL);
+ if (d == NULL)
+ return -1;
+
+ if (d->d_size >= 4 + 8
+ && memcmp (d->d_buf, "ZLIB", 4) == 0)
+ {
+ /* There is a 12-byte header of "ZLIB" followed by
+ an 8-byte big-endian size. There is only one type and
+ alignment isn't preserved separately. */
+ uint64_t size;
+ memcpy (&size, d->d_buf + 4, sizeof size);
+ size = be64toh (size);
+
+ /* One more sanity check, size should be bigger than original
+ data size plus some overhead (4 chars ZLIB + 8 bytes size + 6
+ bytes zlib stream overhead + 5 bytes overhead max for one 16K
+ block) and should fit into a size_t. */
+ if (size + 4 + 8 + 6 + 5 < d->d_size || size > SIZE_MAX)
+ return -1;
+
+ return size;
+ }
+
+ return -1;
+}
diff --git a/libdwelf/libdwelf.h b/libdwelf/libdwelf.h
index e16dc0f..5efe551 100644
--- a/libdwelf/libdwelf.h
+++ b/libdwelf/libdwelf.h
@@ -1,5 +1,5 @@
/* Interfaces for libdwelf. DWARF ELF Low-level Functions.
- Copyright (C) 2014 Red Hat, Inc.
+ Copyright (C) 2014, 2015 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
@@ -65,6 +65,22 @@ extern ssize_t dwelf_dwarf_gnu_debugaltlink (Dwarf *dwarf,
note. Returns -1 in case of malformed data or other errors. */
extern ssize_t dwelf_elf_gnu_build_id (Elf *elf, const void **build_idp);
+/* Can represent either an Elf32_Chdr or Elf64_Chdr. */
+typedef Elf64_Chdr DWElf_Chdr;
+
+/* Puts the compression header of a section into DEST and returns it.
+ Returns NULL if scn is NULL, or the section isn't compressed
+ (doesn't have SHF_COMPRESSED set). If an error occurs NULL is
+ returned and elf_errno is set. */
+extern DWElf_Chdr *dwelf_scn_getchdr (Elf_Scn *scn, DWElf_Chdr *dest);
+
+ /* Returns the size of the uncompressed data of a GNU compressed
+ section. The section name should start with .zdebug (but this
+ isn't checked by this function). If the section isn't compressed
+ (the section data doesn't start with ZLIB) -1 is returned. If an
+ error occured -1 is returned and elf_errno is set. */
+extern ssize_t dwelf_scn_gnu_compressed_size (Elf_Scn *scn);
+
#ifdef __cplusplus
}
#endif
diff --git a/tests/ChangeLog b/tests/ChangeLog
index 69a25fc..8a6f508 100644
--- a/tests/ChangeLog
+++ b/tests/ChangeLog
@@ -1,3 +1,17 @@
+2015-10-28 Mark Wielaard <mjw@redhat.com>
+
+ * dwelfgetchdr.c: New file.
+ * run-dwelfgetchdr.sh: New test.
+ * testfile-zgnu32.bz2: New testfile.
+ * testfile-zgnu64.bz2: Likewise.
+ * testfile-zgabi32.bz2: Likewise.
+ * testfile-zgabi64.bz2: Likewise.
+ * Makefile.am (check_PROGRAMS): Add dwelfgetchdr.
+ (TESTS): Add run-dwelfgetchdr.sh.
+ (EXTRA_DIST): Add run-dwelfgetchdr.sh, testfile-zgnu32.bz2,
+ testfile-zgnu64.bz2, testfile-zgabi32.bz2 and testfile-zgabi64.bz2.
+ (dwelfgetchdr_LDADD): New variable.
+
2015-10-16 Mark Wielaard <mjw@redhat.com>
* Makefile.am [BUILD_STATIC] (libdw): Add -lz.
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 30cf137..a66b202 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -52,7 +52,7 @@ check_PROGRAMS = arextract arsymtest newfile saridx scnnames sectiondump \
backtrace-data backtrace-dwarf debuglink debugaltlink \
buildid deleted deleted-lib.so aggregate_size vdsosyms \
getsrc_die strptr newdata elfstrtab dwfl-proc-attach \
- elfshphehdr elfstrmerge
+ elfshphehdr elfstrmerge dwelfgetchdr
asm_TESTS = asm-tst1 asm-tst2 asm-tst3 asm-tst4 asm-tst5 \
asm-tst6 asm-tst7 asm-tst8 asm-tst9
@@ -120,7 +120,7 @@ TESTS = run-arextract.sh run-arsymtest.sh newfile test-nlist \
run-readelf-dwz-multi.sh run-allfcts-multi.sh run-deleted.sh \
run-linkmap-cut.sh run-aggregate-size.sh vdsosyms run-readelf-A.sh \
run-getsrc-die.sh run-strptr.sh newdata elfstrtab dwfl-proc-attach \
- elfshphehdr run-lfs-symbols.sh
+ elfshphehdr run-lfs-symbols.sh run-dwelfgetchdr.sh
if !BIARCH
export ELFUTILS_DISABLE_BIARCH = 1
@@ -304,7 +304,10 @@ EXTRA_DIST = run-arextract.sh run-arsymtest.sh \
testfile-x32-core.bz2 testfile-x32.bz2 \
backtrace.x32.core.bz2 backtrace.x32.exec.bz2 \
testfile-x32-s.bz2 testfile-x32-d.bz2 testfile-x32-debug.bz2 \
- run-lfs-symbols.sh lfs-symbols testfile-nolfs.bz2
+ run-lfs-symbols.sh lfs-symbols testfile-nolfs.bz2 \
+ testfile-zgnu32.bz2 testfile-zgnu64.bz2 \
+ testfile-zgabi32.bz2 testfile-zgabi64.bz2 \
+ run-dwelfgetchdr.sh
if USE_VALGRIND
valgrind_cmd='valgrind -q --error-exitcode=1 --run-libc-freeres=no'
@@ -453,6 +456,7 @@ dwfl_proc_attach_LDADD = $(libdw)
dwfl_proc_attach_LDFLAGS = -pthread $(AM_LDFLAGS)
elfshphehdr_LDADD =$(libelf)
elfstrmerge_LDADD = $(libebl) $(libelf)
+dwelfgetchdr_LDADD = $(libelf) $(libdw)
if GCOV
check: check-am coverage
diff --git a/tests/dwelfgetchdr.c b/tests/dwelfgetchdr.c
new file mode 100644
index 0000000..839a655
--- /dev/null
+++ b/tests/dwelfgetchdr.c
@@ -0,0 +1,123 @@
+/* Copyright (C) 2015 Red Hat, Inc.
+ This file is part of elfutils.
+
+ This file is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ elfutils 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <assert.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <inttypes.h>
+
+#include ELFUTILS_HEADER(elf)
+#include ELFUTILS_HEADER(dwelf)
+#include <gelf.h>
+
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+
+int
+main (int argc, char *argv[])
+{
+ int result = 0;
+ int cnt;
+
+ elf_version (EV_CURRENT);
+
+ for (cnt = 1; cnt < argc; ++cnt)
+ {
+ int fd = open (argv[cnt], O_RDONLY);
+
+ Elf *elf = elf_begin (fd, ELF_C_READ, NULL);
+ if (elf == NULL)
+ {
+ printf ("%s not usable %s\n", argv[cnt], elf_errmsg (-1));
+ result = 1;
+ close (fd);
+ continue;
+ }
+
+ size_t shdrstrndx;
+ if (elf_getshdrstrndx (elf, &shdrstrndx) == -1)
+ {
+ printf ("elf_getshdrstrnd failed %s\n", elf_errmsg (-1));
+ result = 1;
+ close (fd);
+ continue;
+ }
+
+ Elf_Scn *scn = NULL;
+ while ((scn = elf_nextscn (elf, scn)) != NULL)
+ {
+ int idx = elf_ndxscn (scn);
+ GElf_Shdr shdr;
+ if (gelf_getshdr (scn, &shdr) == NULL)
+ {
+ printf ("gelf_getshdr failed: %s\n", elf_errmsg (-1));
+ result = 1;
+ break;
+ }
+
+ if ((shdr.sh_flags & SHF_COMPRESSED) != 0)
+ {
+ DWElf_Chdr chdr;
+ if (dwelf_scn_getchdr (scn, &chdr) == NULL)
+ {
+ printf ("dwelf_scn_getchdr failed: %s\n", elf_errmsg (-1));
+ result = 1;
+ break;
+ }
+
+ printf ("section %d: ELF Compressed ch_type: %" PRId32
+ ", ch_size: %" PRIx64 ", ch_addralign: %" PRIx64 "\n",
+ idx, chdr.ch_type, chdr.ch_size, chdr.ch_addralign);
+ }
+ else
+ {
+ const char *sname = elf_strptr (elf, shdrstrndx, shdr.sh_name);
+ if (sname == NULL)
+ {
+ printf ("couldn't get section name: %s\n", elf_errmsg (-1));
+ result = 1;
+ break;
+ }
+
+ if (strncmp(".zdebug", sname, strlen (".zdebug")) == 0)
+ {
+ ssize_t size;
+ if ((size = dwelf_scn_gnu_compressed_size (scn)) == -1)
+ {
+ printf ("dwelf_scn_gnu_compressed_size failed: %s\n",
+ elf_errmsg (-1));
+ result = 1;
+ break;
+ }
+ printf ("section %d: GNU Compressed size: %zx\n", idx, size);
+ }
+ else
+ printf ("section %d: NOT Compressed\n", idx);
+ }
+ }
+
+ elf_end (elf);
+ close (fd);
+ }
+
+ return result;
+}
diff --git a/tests/run-dwelfgetchdr.sh b/tests/run-dwelfgetchdr.sh
new file mode 100755
index 0000000..47b2531
--- /dev/null
+++ b/tests/run-dwelfgetchdr.sh
@@ -0,0 +1,136 @@
+#! /bin/sh
+# Copyright (C) 2015 Red Hat, Inc.
+# This file is part of elfutils.
+#
+# This file is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# elfutils 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+. $srcdir/test-subr.sh
+
+# = funcs.s =
+# .globl testfunc
+# testfunc:
+# nop
+# ret
+# .type testfunc, @function
+# .size testfunc, .-testfunc
+#
+# .globl testfunc2
+# testfunc2:
+# call testfunc
+# nop
+# nop
+# ret
+# .type testfunc2, @function
+# .size testfunc2, .-testfunc2
+#
+# .globl functest3
+# functest3:
+# jmp local
+# nop
+# nop
+# local:
+# call testfunc2
+# ret
+# .type functest3, @function
+# .size functest3, .-functest3
+
+# = start.s =
+# .global _start
+# _start:
+# call functest3
+# nop
+# nop
+# nop
+# nop
+# nop
+# nop
+# nop
+# nop
+# nop
+# nop
+# nop
+# nop
+# nop
+# nop
+# nop
+# nop
+# ret
+# .type _start, @function
+# .size _start, .-_start
+
+# gas --compress-debug-sections=zlib-gnu -32 -g -o start.o start.s
+# gas --compress-debug-sections=zlib-gnu -32 -g -o funcs.o funcs.s
+# ld --compress-debug-sections=zlib-gnu -melf_i386 -g -o zgnu32 funcs.o start.o
+
+# gas --compress-debug-sections=zlib-gnu -64 -g -o start.o start.s
+# gas --compress-debug-sections=zlib-gnu -64 -g -o funcs.o funcs.s
+# ld --compress-debug-sections=zlib-gnu -g -o zgnu32 funcs.o start.o
+
+# gas --compress-debug-sections=zlib-gabi -32 -g -o start.o start.s
+# gas --compress-debug-sections=zlib-gabi -32 -g -o funcs.o funcs.s
+# ld --compress-debug-sections=zlib-gabi -melf_i386 -g -o zgabi32 funcs.o start.o
+
+# gas --compress-debug-sections=zlib-gabi -64 -g -o start.o start.s
+# gas --compress-debug-sections=zlib-gabi -64 -g -o funcs.o funcs.s
+# ld --compress-debug-sections=zlib-gabi -g -o zgabi64 funcs.o start.o
+
+testfiles testfile-zgnu64
+testrun_compare ${abs_top_builddir}/tests/dwelfgetchdr testfile-zgnu64 <<\EOF
+section 1: NOT Compressed
+section 2: GNU Compressed size: 60
+section 3: GNU Compressed size: aa
+section 4: NOT Compressed
+section 5: GNU Compressed size: 8d
+section 6: NOT Compressed
+section 7: NOT Compressed
+section 8: NOT Compressed
+EOF
+
+testfiles testfile-zgabi64
+testrun_compare ${abs_top_builddir}/tests/dwelfgetchdr testfile-zgabi64 <<\EOF
+section 1: NOT Compressed
+section 2: ELF Compressed ch_type: 1, ch_size: 60, ch_addralign: 10
+section 3: ELF Compressed ch_type: 1, ch_size: aa, ch_addralign: 1
+section 4: NOT Compressed
+section 5: ELF Compressed ch_type: 1, ch_size: 8d, ch_addralign: 1
+section 6: NOT Compressed
+section 7: NOT Compressed
+section 8: NOT Compressed
+EOF
+
+testfiles testfile-zgnu32
+testrun_compare ${abs_top_builddir}/tests/dwelfgetchdr testfile-zgnu32 <<\EOF
+section 1: NOT Compressed
+section 2: GNU Compressed size: 40
+section 3: GNU Compressed size: 9a
+section 4: NOT Compressed
+section 5: GNU Compressed size: 85
+section 6: NOT Compressed
+section 7: NOT Compressed
+section 8: NOT Compressed
+EOF
+
+testfiles testfile-zgabi32
+testrun_compare ${abs_top_builddir}/tests/dwelfgetchdr testfile-zgabi32 <<\EOF
+section 1: NOT Compressed
+section 2: ELF Compressed ch_type: 1, ch_size: 40, ch_addralign: 8
+section 3: ELF Compressed ch_type: 1, ch_size: 9a, ch_addralign: 1
+section 4: NOT Compressed
+section 5: ELF Compressed ch_type: 1, ch_size: 85, ch_addralign: 1
+section 6: NOT Compressed
+section 7: NOT Compressed
+section 8: NOT Compressed
+EOF
+
+exit 0
diff --git a/tests/testfile-zgabi32.bz2 b/tests/testfile-zgabi32.bz2
new file mode 100755
index 0000000000000000000000000000000000000000..6159dbcea3a74cc1851ac69e8d985d3224b9fe3f
GIT binary patch
literal 767
zcmV<b0s#F&T4*^jL0KkKSu?W*00050|NsB@{V8s7d~EmpWmW(8|9$6Wcs(<4h;aTe
z5FikJ=rF(nGl7hZHB3r+Owu%H(0Z8-83CXH=?sQ|Gy_0nXaS~%fEo=LjRQ?I$QqiO
zG>n98A(KNRO&S0V0iXZ?00000003wJ03g#N38PFP#4$9$5s{`LiGUL(011$2zyJ}G
z36lU!BLt?Rnx^#x^){o_)6`~w6DB5src6vs6B9#CFeVcqWYEBx01X%dG|0&#AtP84
z2+AmAh{6?1>!;MnfJ-$c%yXTxV0GETe=$D)H(|(ZxHGvVfDVf&lp`3&`J{fB4hRJ#
zWt^rf;I8rX36>`i)Po&r?#x3kkiZ1WdJ-Ix9E5<5n2RCQDJF^0I*4%o;GjSyDw&*_
zA~I$QWD(a)C#B4OOb;U!Oti;XaBDNa-_Nh;Je^sV<cA!Lp^g9*b)K|u`D=@WIvQBz1z
zAkO>aKl=ljr6^~I{$!3b(HjqI*Gs9!4c+G#sfu7zA_!>QO(I1T*)Tlqh&l#$so>MB
zCWR5x!t_(ch~r^F#F)p1Ps=N7Qa(%df0E!*#+xh1fZ;_y5z2Tm`4pejY68R&jtcJv
z3V?iGVu>UThy#KEi;~}vH-3v#;lEO0+Qinmn!XI-DS)>_#uZ!b?)k=KN1Kvl&XVYI
zcrgc=9`#e0c8<b=hGp_`qXG_iIprKyp3zEj%P3_qMNn3AQY42c3s8nOh;+G*P!6~Z
zgQlizUWiCE5I{S#jRt);*)d6>;=nhC5TnNp9^s-ig8^vf8KF3UK=8}C$W>&!h~a3E
zslbNN2H-Rw%9-l5xPv?4xTTF9RiOm5*k)nRy)0Lhz{-U-saEpkx{#Y~Y;-4gpp5&%
z4ZwoK3Kt1|JW`<Q1EVX5)iGC{vm(a)-XG?+AFJ$UNg&5IAYM_jM`Us(a)6+VhouHPnU(J
x5(a)fLs)tWGq0%19=(faJX>8_VVz=f!nIAj-AL5RFEq~iaJxgwk>NEz9JfB?<JRQUh^
literal 0
HcmV?d00001
diff --git a/tests/testfile-zgabi64.bz2 b/tests/testfile-zgabi64.bz2
new file mode 100755
index 0000000000000000000000000000000000000000..3b44f089e98c7fe7f90969cbbefbca5d8a16c36a
GIT binary patch
literal 795
zcmV+$1LXWdT4*^jL0KkKSwf>T@&EzcfB*k~{cnC*dPo0UO(_58-}tj`bSHOEd`9o2
z7zTBCrZ&I=90EiYH87LZ{YIvkO$`HTG|<8g0BAG;qfImb292TyhCl(ML7)eudYWxd
zQ2-elX{II-iIIt;O)@etBLZLu(WXWwfr2zLFhe5~0x$qf2mr{_O))TxOpHw$X_1kE
z7!v?SjWRJb3=yG`f*BZ?5r6_<5}Kxv)bvbA;+PptG{`hygFrOXPe?Q#riM*4$kC%f
zWFDhKL7|`;001U};A;hb{Aj`zK81A|M7&D~BuA$);<a{EMD*FL{Y>Q~N{<g+k8OQZ
zwM3-f=@m84&3P)XEi3zrxOW!yfaJu41)ZzF!;(T(sghxvZFxn_U2S!C`A~)!Yb9TK
zby}KxL=GUCpF;@)2{KKjLr*{i!82(a)D9xg64CR(V}L2r?h)E$(n(a)g(9{>&=G)Md{J8
z;Tl>ZrExv>#+y8LL>HquUpxblMMMH(m5B3wQBQMeP8fyKxJC*L<@UL+!hNYts%H`e
z8Oe;q&DuqRXmVaKL{7+f(u)ro>C#Y8#4L-`+l1(>Mob23JD#b|A{keX4t+(dnu;wQ
z0lXh(xp7N=YL7Bh1j2Tl4M-^#=5v!qLySIdDC$62yrKfVcgQOM9)ti_2KC|Y#G?Kh
zp$WSE(n)3!hAlG@#$}5v<mK5tkFdj_$gCf(>RK7^7L&Co{7Ee9>&hKtzVPv^dU|Rf
zEZP*{u^K+Fh4gu(>vP_5Q2`5k)&yL(a)iTA+s87Zvd_=BSTNJ34N($qv%))V~UqZYz`
z1dRH~T&4PBgv|mrgy{0$uSCKL^5Ba6p$_V-y0SDcdJ~9d5u6diP)Boaop?xUIMW`4
z>SnHDu#pB$bk^XB2cG&$mgx-`3XB{crG5W8SpXn{+b?QDku3zT$LpIpD_A9_lN3(a)P
z85`aa?w`5Yi9<-p_IMk|gAt`rA03fx4Gb18K9E6zO&7`<AnDpHJP(a)hn4v9gQi02TZ
Z%-Q_&a*{Ly1>#@g?ntK!5(rdgen5r;U~B*Y
literal 0
HcmV?d00001
diff --git a/tests/testfile-zgnu32.bz2 b/tests/testfile-zgnu32.bz2
new file mode 100755
index 0000000000000000000000000000000000000000..9d622cad1739554cbf744ed471936a5b470a1148
GIT binary patch
literal 780
zcmV+n1M~bsT4*^jL0KkKSrTWQ^8f*#fB*mY{V8v8d(a)c9vWp)4e|9$6Wcs(<4h;aTe
z5FikJ=rF(n7&(9jrb#_2eiC|*LYQqS>6F@@ri}nJ(<9Vrw15E9)bfX^p`+A#gCVDq
z4(a)u=brbdrVH8xQO69i<yOafq-ATR(4fC+#RrVzwnBSsN~(V!VJWCog4$RU$J(@Cai
zJs<|AYB4Yb!enXcVlsLFj0vUyOaKX^0GJvns$}&v(9p(a)FLqKRW(U8P4XaE2MAPoS-
zGz@?M27m#}asxKZGK?5R5Ji21Q5yEQp)t=CDGIUfz~cARS5HPYDIDn^z*Io^;ucCG
zHtw5j1JVN%5M<aEaQzS(kf4#HkdcQ~U5_4t5gwNWlu%JfBnd+C+JOL;D8wQZF?0(h
z0WOF(a)r3nv6KpG%Mlpc^!E8?J&1<>d*V&OQFa-<(wM2O-fvjV(_WuK~}L`}JT+6*v?
z(a)PvLx6jkqXsEz0tj@aqIVi|>*F}7JmQeNKp2q8)VtOh|gNf!B(%@PR61Pg#*GZ0}Q
zh?tN~AhiHqgPs-vA>?X*jD})!yxK9i7U!mx(?AX7^f8ha0Kr}l#gkYiY0&P?TsWqz
zgPku?abrnHwn9;J$q4Hcd1g7jrm|~MR^X|eXh=RcYH!v?t21DCzSShq&|M!(*$p0#
znI6VpOnc$iSR|^Dice_i$5>Moj2M!7vitt+OyG&}EO38S%?@!YnnO&6(ZVN{qyws|
zGzk|UeDRR8U@$Om5aE9mVfe=ZFw!V7PrIK9WkqBMYXv(a)w1-v=R!XW5n=U7tC0tu{D
z(a)51bza!6+ME|4m=1(a)H}vxWAo!+Znwvoc$Xaf;P37800QW!|ru3Jg58d#|dOd(a)igw6
z`IfS>^ZO3bs3pqHF+dyyj2?s!?G_Tazec-uIe9~Sndh~#cDxZWqrsIkBZnGB&e}OK
zHlE)MBE?jULAULAI+1SNVLi0$3x5~em;RCdo^-MyT)<$CHOCUDGHPo>2rNs#@pmLs
Kg$V&BdCxGFj#bD2
literal 0
HcmV?d00001
diff --git a/tests/testfile-zgnu64.bz2 b/tests/testfile-zgnu64.bz2
new file mode 100755
index 0000000000000000000000000000000000000000..1bc2c0906a4f2404d2df2b6e8aa6e096665ae2ba
GIT binary patch
literal 785
zcmV+s1Md7nT4*^jL0KkKSz)bY&;S9*|NsAg{cnDGdPCoQOgR7N-|)9?bS8IDd`9o2
z7zTBCrZ&I=8-Zrb6eJT(rlFdeWc3XXQ%w(1p`g$PjWjfApfU{r4Kf;Or>M{X05r+9
zG|B29WMVX6O&JCOG-;s084Ltq6C+GaOh$~1AkmP(CYS&d6A(2|Q$Y<iG}A*Nrhw2g
zG&BGjXwVG+0MGyc003wJ001OXMwHJ&hMOcFlhpLo&<&}kK+wnlHlP|BXwVt~pc)MT
z0000B9Rr$@2_y;e9?^JK(a)+lRwy39}0Bo#9AK4d}dW1Dv`6m~*9j{iwEDa>xjg)bd_
zUdu<RxT+JHCa@~!;F5(a)Abq0j5FLm)OzKZ8fD4Syd0abQaw>eg+DPevzr7;bpn;Th1
zsW1Y}X<fT%hAY9r!mzfjhsfs<VmnFZ1l$UmLhj?;3KKA-6pW3!*1S1d!A1`H07Sxz
zGqVT<cT8*Q&c3SOsU)*OS_<i-AMGDQb!i&Ep_5YyOC6&XhgqVY!Ub`ZIIt*>d&0Vk
zbEm&G2DtWbB8?LmmNPp(n>dMQD*7a#I6UVB8<{ZlAaTx&AJ>QmVwM^25)Mp{<kGvS
z#~|**b7PfIwnve1AXl%Dg2zG#bxUsQIZjDb;rdl9*FjW~kbo5frXVaujV=gNsA})C
zw9az0jD#@str2VCht9cq(<4YydvVe94Y3(a)ciZBcZ3;<{K6(a)lsM3apwOKcp1;-Y7&^
z*b*;$uOCz;{p<M*My=!U-Y#sp;UPyPa}q>`^kC)#xfr(3)Zb{d#KWOL89(a)ojL5W^u
z8jxfbHicM{3;_da7Nanl<N3(Jb0C?3PzC(a)gRP{DwgQ|X}>UO7*2zC>Aglp#qA*#rP
zr35q4TDw?1pr<H+d(Nkm{f1ld0t4t?il)m1ug$6Z2FaC)M2<gFUX=ng816Q2H(a)K*n
zR7a_46XY26m0)=3?c6jRn$ztB3`FV)L1KDIql=OU45bk<Fr~~RZ6P+snE2O-ngEH~
PKjQ94rwS4bHLRKdHyTwY
literal 0
HcmV?d00001
--
2.4.3