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Re: mpolacek/ebl_dynamic_tag_name
- From: Marek Polacek <mpolacek at redhat dot com>
- To: elfutils-devel at lists dot fedorahosted dot org
- Date: Mon, 28 Mar 2011 16:15:47 +0200
- Subject: Re: mpolacek/ebl_dynamic_tag_name
On 03/28/2011 12:57 PM, Mark Wielaard wrote:
> I think you should include this and produce the ELF file during the test
> run instead of only including the binary. I realize that is stretching
> the testsuite support a little. But in this case the elf file is
> completely produced "synthetically" instead of depending on compiler
> versions/arch.
All right. Should be done now. Pushed to my branch.
Signed-off-by: Marek Polacek <mpolacek@redhat.com>
---
tests/ChangeLog | 8 ++-
tests/Makefile.am | 8 +-
tests/alldts.c | 275 +++++++++++++++++++++++++++++++++++++++++++++++++++
tests/run-alldts.sh | 106 ++++++++++++++++++++
4 files changed, 393 insertions(+), 4 deletions(-)
create mode 100644 tests/alldts.c
create mode 100755 tests/run-alldts.sh
diff --git a/tests/ChangeLog b/tests/ChangeLog
index 4ec3853..bfdbf67 100644
--- a/tests/ChangeLog
+++ b/tests/ChangeLog
@@ -1,4 +1,10 @@
-2011-04-02 Marek Polacek <mpolacek@redhat.com>
+2011-03-28 Marek Polacek <mpolacek@redhat.com>
+
+ * alldts.c: New file.
+ * run-alldts.sh: Use it.
+ * Makefile.am (EXTRA_DIST): Add and update all.
+
+2011-03-02 Marek Polacek <mpolacek@redhat.com>
* dwarf-getstring.c: New test.
* run-dwarf-getstring.sh: And its wrapper.
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 70029f7..35f55e3 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -57,7 +57,8 @@ noinst_PROGRAMS = arextract arsymtest newfile saridx scnnames
sectiondump \
dwfl-bug-addr-overflow arls dwfl-bug-fd-leak \
dwfl-addr-sect dwfl-bug-report early-offscn \
dwfl-bug-getmodules dwarf-getmacros addrcfi \
- test-flag-nobits dwarf-getstring rerequest_tag
+ test-flag-nobits dwarf-getstring rerequest_tag \
+ alldts
asm_TESTS = asm-tst1 asm-tst2 asm-tst3 asm-tst4 asm-tst5 \
asm-tst6 asm-tst7 asm-tst8 asm-tst9
@@ -70,7 +71,7 @@ TESTS = run-arextract.sh run-arsymtest.sh newfile test-nlist \
run-strip-test3.sh run-strip-test4.sh run-strip-test5.sh \
run-strip-test6.sh run-strip-test7.sh run-strip-test8.sh \
run-unstrip-test.sh run-unstrip-test2.sh \
- run-ecp-test.sh run-ecp-test2.sh \
+ run-ecp-test.sh run-ecp-test2.sh run-alldts.sh \
run-elflint-test.sh run-elflint-self.sh run-ranlib-test.sh \
run-ranlib-test2.sh run-ranlib-test3.sh run-ranlib-test4.sh \
run-addrscopes.sh run-strings-test.sh run-funcscopes.sh \
@@ -118,7 +119,7 @@ EXTRA_DIST = run-arextract.sh run-arsymtest.sh \
run-addrname-test.sh run-dwfl-bug-offline-rel.sh \
run-dwfl-addr-sect.sh run-early-offscn.sh \
run-dwarf-getmacros.sh run-test-flag-nobits.sh \
- run-dwarf-getstring.sh \
+ run-dwarf-getstring.sh run-alldts.sh \
testfile15.bz2 testfile15.debug.bz2 \
testfile16.bz2 testfile16.debug.bz2 \
testfile17.bz2 testfile17.debug.bz2 \
@@ -253,6 +254,7 @@ dwarf_getstring_LDADD = $(libdw) $(libmudflap)
addrcfi_LDADD = $(libdw) $(libebl) $(libelf) $(libmudflap) -ldl
test_flag_nobits_LDADD = $(libelf) $(libmudflap)
rerequest_tag_LDADD = $(libdw) $(libmudflap)
+alldts_LDADD = $(libebl) $(libelf) $(libmudflap)
if GCOV
check: check-am coverage
diff --git a/tests/alldts.c b/tests/alldts.c
new file mode 100644
index 0000000..ed7624a
--- /dev/null
+++ b/tests/alldts.c
@@ -0,0 +1,275 @@
+/* Create an ELF file with all the DT_* flags set.
+ Copyright (C) 2011 Red Hat, Inc.
+ This file is part of Red Hat elfutils.
+ Written by Marek Polacek <mpolacek@redhat.com>, 2011.
+
+ Red Hat elfutils 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; version 2 of the License.
+
+ Red Hat 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 Red Hat elfutils; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA.
+
+ Red Hat elfutils is an included package of the Open Invention Network.
+ An included package of the Open Invention Network is a package for which
+ Open Invention Network licensees cross-license their patents. No patent
+ license is granted, either expressly or impliedly, by designation as an
+ included package. Should you wish to participate in the Open Invention
+ Network licensing program, please visit www.openinventionnetwork.com
+ <http://www.openinventionnetwork.com>. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include ELFUTILS_HEADER(ebl)
+#include <elf.h>
+#include <gelf.h>
+#include <fcntl.h>
+#include <libelf.h>
+#include <stdio.h>
+#include <stdio_ext.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+
+int
+main (void)
+{
+ static const char fname[] = "testfile-alldts";
+ struct Ebl_Strtab *shst;
+ struct Ebl_Strent *dynscn;
+ struct Ebl_Strent *shstrtabse;
+ const Elf32_Sword dtflags[] =
+ {
+ DT_NULL, DT_NEEDED, DT_PLTRELSZ, DT_PLTGOT,
+ DT_HASH, DT_STRTAB, DT_SYMTAB, DT_RELA,
+ DT_RELASZ, DT_RELAENT, DT_STRSZ, DT_SYMENT,
+ DT_INIT, DT_FINI, DT_SONAME, DT_RPATH,
+ DT_SYMBOLIC, DT_REL, DT_RELSZ, DT_RELENT,
+ DT_PLTREL, DT_DEBUG, DT_TEXTREL, DT_JMPREL,
+ DT_BIND_NOW, DT_INIT_ARRAY, DT_FINI_ARRAY,
+ DT_INIT_ARRAYSZ, DT_FINI_ARRAYSZ, DT_RUNPATH,
+ DT_FLAGS, DT_ENCODING, DT_PREINIT_ARRAY,
+ DT_PREINIT_ARRAYSZ, DT_VERSYM, DT_GNU_PRELINKED,
+ DT_GNU_CONFLICTSZ, DT_GNU_LIBLISTSZ, DT_CHECKSUM,
+ DT_PLTPADSZ, DT_MOVEENT, DT_MOVESZ, DT_FEATURE_1,
+ DT_POSFLAG_1, DT_SYMINSZ, DT_SYMINENT, DT_GNU_HASH,
+ DT_TLSDESC_PLT, DT_TLSDESC_GOT, DT_GNU_CONFLICT,
+ DT_GNU_LIBLIST, DT_CONFIG, DT_DEPAUDIT, DT_AUDIT,
+ DT_PLTPAD, DT_MOVETAB, DT_SYMINFO, DT_RELACOUNT,
+ DT_RELCOUNT, DT_FLAGS_1, DT_VERDEF, DT_VERDEFNUM,
+ DT_VERNEED, DT_VERNEEDNUM, DT_AUXILIARY, DT_FILTER
+ };
+ const int ndtflags = sizeof (dtflags) / sizeof (dtflags[0]);
+
+ /* We use no threads here which can interfere with handling a stream. */
+ (void) __fsetlocking (stdout, FSETLOCKING_BYCALLER);
+
+ /* Open the file. */
+ int fd = open64 (fname, O_RDWR | O_CREAT | O_TRUNC, 0666);
+ if (fd == -1)
+ {
+ printf ("cannot open `%s': %m\n", fname);
+ return 1;
+ }
+
+ /* Tell the library which version are we expecting. */
+ elf_version (EV_CURRENT);
+
+ /* Create an ELF descriptor. */
+ Elf *elf = elf_begin (fd, ELF_C_WRITE, NULL);
+ if (elf == NULL)
+ {
+ printf ("cannot create ELF descriptor: %s\n", elf_errmsg (-1));
+ return 1;
+ }
+
+ /* Create an ELF header. */
+ Elf32_Ehdr *ehdr = elf32_newehdr (elf);
+ if (ehdr == NULL)
+ {
+ printf ("cannot create ELF header: %s\n", elf_errmsg (-1));
+ return 1;
+ }
+
+ ehdr->e_ident[0] = 42;
+ ehdr->e_ident[5] = 1;
+ ehdr->e_ident[6] = 2;
+ ehdr->e_type = ET_EXEC;
+ ehdr->e_machine = EM_386;
+ ehdr->e_version = 1;
+ ehdr->e_ehsize = 1;
+ ehdr->e_shnum = 3;
+
+ elf_flagehdr (elf, ELF_C_SET, ELF_F_DIRTY);
+
+ /* Create the program headers. */
+ Elf32_Phdr *phdr = elf32_newphdr (elf, 2);
+ if (phdr == NULL)
+ {
+ printf ("cannot create program headers: %s\n", elf_errmsg (-1));
+ return 1;
+ }
+
+ phdr[0].p_type = PT_PHDR;
+ phdr[1].p_type = PT_DYNAMIC;
+
+ elf_flagphdr (elf, ELF_C_SET, ELF_F_DIRTY);
+ shst = ebl_strtabinit (true);
+
+ /* Create the .dynamic section. */
+ Elf_Scn *scn = elf_newscn (elf);
+ if (scn == NULL)
+ {
+ printf ("cannot create DYNAMIC section: %s\n", elf_errmsg (-1));
+ return 1;
+ }
+
+ Elf32_Shdr *shdr = elf32_getshdr (scn);
+ if (shdr == NULL)
+ {
+ printf ("cannot get header for DYNAMIC section: %s\n", elf_errmsg (-1));
+ return 1;
+ }
+
+ dynscn = ebl_strtabadd (shst, ".dynamic", 0);
+
+ /* We'll need to know the section offset. But this will be set up
+ by elf_update later, so for now just store the address. */
+ const Elf32_Off *const dynscn_offset = &shdr->sh_offset;
+ shdr->sh_type = SHT_DYNAMIC;
+ shdr->sh_flags = SHF_ALLOC | SHF_WRITE;
+ shdr->sh_link = SHN_UNDEF;
+ shdr->sh_info = SHN_UNDEF;
+ /* This section will start here. */
+ shdr->sh_addr = 0x1a0;
+
+ /* Create new section data. */
+ Elf_Data *data = elf_newdata (scn);
+ if (data == NULL)
+ {
+ printf ("cannot create data for DYNAMIC section: %s\n", elf_errmsg (-1));
+ return 1;
+ }
+
+ /* Allocate memory for all the .dynamic entries. */
+ Elf32_Dyn *dyn = malloc (ndtflags * sizeof (Elf32_Dyn));
+ if (dyn == NULL)
+ {
+ printf ("malloc failed: %m\n");
+ return 1;
+ }
+
+ /* Now write all the DT_* flags. */
+ for (int i = 0; i < ndtflags; ++i)
+ {
+ dyn[i].d_tag = dtflags[i];
+ dyn[i].d_un.d_val = 0xdeadbeef;
+ }
+
+ /* Set the pointer to allocated memory. */
+ data->d_buf = dyn;
+ data->d_type = ELF_T_DYN;
+ data->d_version = EV_CURRENT;
+ data->d_size = ndtflags * sizeof (Elf32_Dyn);
+ data->d_align = 0x8;
+
+ /* Create .shstrtab section. */
+ scn = elf_newscn (elf);
+ if (scn == NULL)
+ {
+ printf ("cannot create SHSTRTAB section: %s\n", elf_errmsg (-1));
+ return 1;
+ }
+
+ shdr = elf32_getshdr (scn);
+ if (shdr == NULL)
+ {
+ printf ("cannot get header for SHSTRTAB section: %s\n", elf_errmsg (-1));
+ return 1;
+ }
+
+ shstrtabse = ebl_strtabadd (shst, ".shstrtab", 0);
+
+ shdr->sh_type = SHT_STRTAB;
+ shdr->sh_flags = 0;
+ shdr->sh_addr = 0;
+ shdr->sh_link = SHN_UNDEF;
+ shdr->sh_info = SHN_UNDEF;
+ shdr->sh_entsize = 1;
+
+ /* We have to store the section index in the ELF header. */
+ ehdr->e_shstrndx = elf_ndxscn (scn);
+
+ data = elf_newdata (scn);
+ if (data == NULL)
+ {
+ printf ("cannot create data SHSTRTAB section: %s\n", elf_errmsg (-1));
+ return 1;
+ }
+
+ /* No more sections, finalize the section header string table. */
+ ebl_strtabfinalize (shst, data);
+
+ elf32_getshdr (elf_getscn (elf, 1))->sh_name = ebl_strtaboffset (dynscn);
+ shdr->sh_name = ebl_strtaboffset (shstrtabse);
+
+ /* Let the library compute the internal structure information. */
+ if (elf_update (elf, ELF_C_NULL) < 0)
+ {
+ printf ("failure in elf_update(NULL): %s\n", elf_errmsg (-1));
+ return 1;
+ }
+
+ ehdr = elf32_getehdr (elf);
+
+ phdr[0].p_offset = ehdr->e_phoff;
+ phdr[0].p_vaddr = ehdr->e_phoff;
+ phdr[0].p_paddr = ehdr->e_phoff;
+ phdr[0].p_flags = PF_R | PF_X;
+ phdr[0].p_filesz = ehdr->e_phnum * elf32_fsize (ELF_T_PHDR, 1, EV_CURRENT);
+ phdr[0].p_memsz = ehdr->e_phnum * elf32_fsize (ELF_T_PHDR, 1, EV_CURRENT);
+ phdr[0].p_align = sizeof (Elf32_Word);
+
+ phdr[1].p_flags = PF_W | PF_R;
+ phdr[1].p_offset = *dynscn_offset;
+ /* Set up the start of this segment to equal start address of the
+ .dynamic section. */
+ phdr[1].p_vaddr = 0x1a0;
+ phdr[1].p_paddr = 0x1a0;
+ phdr[1].p_align = 2 * sizeof (Elf32_Word);
+ phdr[1].p_filesz = ndtflags * sizeof (Elf32_Dyn);
+ phdr[1].p_memsz = ndtflags * sizeof (Elf32_Dyn);
+
+ /* Write out the file. */
+ if (elf_update (elf, ELF_C_WRITE) < 0)
+ {
+ printf ("failure in elf_update(WRITE): %s\n", elf_errmsg (-1));
+ return 1;
+ }
+
+ /* We don't need the string table anymore. */
+ ebl_strtabfree (shst);
+
+ /* And the data allocated in the .shstrtab section. */
+ free (data->d_buf);
+
+ /* All done. */
+ if (elf_end (elf) != 0)
+ {
+ printf ("failure in elf_end: %s\n", elf_errmsg (-1));
+ return 1;
+ }
+
+ return 0;
+}
diff --git a/tests/run-alldts.sh b/tests/run-alldts.sh
new file mode 100755
index 0000000..327f2f1
--- /dev/null
+++ b/tests/run-alldts.sh
@@ -0,0 +1,106 @@
+#! /bin/sh
+# Copyright (C) 2011 Red Hat, Inc.
+# This file is part of Red Hat elfutils.
+#
+# Red Hat elfutils 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; version 2 of the License.
+#
+# Red Hat 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 Red Hat elfutils; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA.
+#
+# Red Hat elfutils is an included package of the Open Invention Network.
+# An included package of the Open Invention Network is a package for which
+# Open Invention Network licensees cross-license their patents. No patent
+# license is granted, either expressly or impliedly, by designation as an
+# included package. Should you wish to participate in the Open Invention
+# Network licensing program, please visit www.openinventionnetwork.com
+# <http://www.openinventionnetwork.com>.
+
+. $srcdir/test-subr.sh
+
+# This will produce "testfile-alldts" file
+./alldts
+
+testrun_compare ../src/readelf -d testfile-alldts <<\EOF
+
+Dynamic segment contains 66 entries:
+ Addr: 0x000001a0 Offset: 0x000078 Link to section: [ 0] ''
+ Type Value
+ NULL
+ NEEDED Shared library: [(null)]
+ PLTRELSZ 3735928559 (bytes)
+ PLTGOT 0xdeadbeef
+ HASH 0xdeadbeef
+ STRTAB 0xdeadbeef
+ SYMTAB 0xdeadbeef
+ RELA 0xdeadbeef
+ RELASZ 3735928559 (bytes)
+ RELAENT 3735928559 (bytes)
+ STRSZ 3735928559 (bytes)
+ SYMENT 3735928559 (bytes)
+ INIT 0xdeadbeef
+ FINI 0xdeadbeef
+ SONAME Library soname: [(null)]
+ RPATH Library rpath: [(null)]
+ SYMBOLIC 0xdeadbeef
+ REL 0xdeadbeef
+ RELSZ 3735928559 (bytes)
+ RELENT 3735928559 (bytes)
+ PLTREL ???
+ DEBUG
+ TEXTREL
+ JMPREL 0xdeadbeef
+ BIND_NOW
+ INIT_ARRAY 0xdeadbeef
+ FINI_ARRAY 0xdeadbeef
+ INIT_ARRAYSZ 3735928559 (bytes)
+ FINI_ARRAYSZ 3735928559 (bytes)
+ RUNPATH Library runpath: [(null)]
+ FLAGS ORIGIN SYMBOLIC TEXTREL BIND_NOW 0xdeadbee0
+ PREINIT_ARRAY 0xdeadbeef
+ PREINIT_ARRAY 0xdeadbeef
+ PREINIT_ARRAYSZ 0xdeadbeef
+ VERSYM 0xdeadbeef
+ GNU_PRELINKED 0xdeadbeef
+ GNU_CONFLICTSZ 3735928559 (bytes)
+ GNU_LIBLISTSZ 3735928559 (bytes)
+ CHECKSUM 0xdeadbeef
+ PLTPADSZ 3735928559 (bytes)
+ MOVEENT 3735928559 (bytes)
+ MOVESZ 3735928559 (bytes)
+ FEATURE_1 PARINIT CONFEXP 0xdeadbeec
+ POSFLAG_1 LAZYLOAD GROUPPERM 0xdeadbeec
+ SYMINSZ 3735928559 (bytes)
+ SYMINENT 3735928559 (bytes)
+ GNU_HASH 0xdeadbeef
+ TLSDESC_PLT 0xdeadbeef
+ TLSDESC_GOT 0xdeadbeef
+ GNU_CONFLICT 0xdeadbeef
+ GNU_LIBLIST 0xdeadbeef
+ CONFIG 0xdeadbeef
+ DEPAUDIT 0xdeadbeef
+ AUDIT 0xdeadbeef
+ PLTPAD 0xdeadbeef
+ MOVETAB 0xdeadbeef
+ SYMINFO 0xdeadbeef
+ RELACOUNT 3735928559
+ RELCOUNT 3735928559
+ FLAGS_1 NOW GLOBAL GROUP NODELETE INITFIRST NOOPEN ORIGIN TRANS
INTERPOSE NODEFLIB NODUMP CONFALT DISPRELDNE DISPRELPND 0xdeac0000
+ VERDEF 0xdeadbeef
+ VERDEFNUM 3735928559
+ VERNEED 0xdeadbeef
+ VERNEEDNUM 3735928559
+ AUXILIARY 0xdeadbeef
+ FILTER 0xdeadbeef
+EOF
+
+rm -f testfile-alldts
+
+exit 0
--
1.7.3.4