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Add elfutils-0.174-version-note.patch.

This commit is contained in:
Mark Wielaard 2018-11-15 00:43:39 +01:00
parent fd33ee5a7a
commit 95b280f1eb
2 changed files with 159 additions and 0 deletions
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156
elfutils-0.174-version-note.patch Normal file
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@ -0,0 +1,156 @@
commit 7a3f6fe60b8519b5372f5a5521ccbac59411f33f
Author: Mark Wielaard <mark@klomp.org>
Date: Sun Nov 11 23:50:41 2018 +0100
Recognize NT_VERSION notes.
NT_VERSION notes are emitted by the gas .version directive.
They have an empty description and (ab)use the owner name to store the
version data string.
Signed-off-by: Mark Wielaard <mark@klomp.org>
diff --git a/libebl/eblobjnote.c b/libebl/eblobjnote.c
index 57e9f52..8fda7d9 100644
--- a/libebl/eblobjnote.c
+++ b/libebl/eblobjnote.c
@@ -135,6 +135,14 @@ ebl_object_note (Ebl *ebl, const char *name, uint32_t type,
return;
}
+ /* NT_VERSION doesn't have any info. All data is in the name. */
+ if (descsz == 0 && type == NT_VERSION)
+ return;
+
+ /* Everything else should have the "GNU" owner name. */
+ if (strcmp ("GNU", name) != 0)
+ return;
+
switch (type)
{
case NT_GNU_BUILD_ID:
@@ -337,7 +345,7 @@ ebl_object_note (Ebl *ebl, const char *name, uint32_t type,
break;
case NT_GNU_ABI_TAG:
- if (strcmp (name, "GNU") == 0 && descsz >= 8 && descsz % 4 == 0)
+ if (descsz >= 8 && descsz % 4 == 0)
{
Elf_Data in =
{
diff --git a/libebl/eblobjnotetypename.c b/libebl/eblobjnotetypename.c
index af23cae..8cdd781 100644
--- a/libebl/eblobjnotetypename.c
+++ b/libebl/eblobjnotetypename.c
@@ -39,6 +39,7 @@
const char *
ebl_object_note_type_name (Ebl *ebl, const char *name, uint32_t type,
+ GElf_Word descsz,
char *buf, size_t len)
{
const char *res = ebl->object_note_type_name (name, type, buf, len);
@@ -80,14 +81,19 @@ ebl_object_note_type_name (Ebl *ebl, const char *name, uint32_t type,
if (strcmp (name, "GNU") != 0)
{
+ /* NT_VERSION is special, all data is in the name. */
+ if (descsz == 0 && type == NT_VERSION)
+ return "VERSION";
+
snprintf (buf, len, "%s: %" PRIu32, gettext ("<unknown>"), type);
return buf;
}
+ /* And finally all the "GNU" note types. */
static const char *knowntypes[] =
{
#define KNOWNSTYPE(name) [NT_##name] = #name
- KNOWNSTYPE (VERSION),
+ KNOWNSTYPE (GNU_ABI_TAG),
KNOWNSTYPE (GNU_HWCAP),
KNOWNSTYPE (GNU_BUILD_ID),
KNOWNSTYPE (GNU_GOLD_VERSION),
diff --git a/libebl/libebl.h b/libebl/libebl.h
index a34fe48..5830654 100644
--- a/libebl/libebl.h
+++ b/libebl/libebl.h
@@ -175,8 +175,8 @@ extern const char *ebl_core_note_type_name (Ebl *ebl, uint32_t type, char *buf,
/* Return name of the note section type for an object file. */
extern const char *ebl_object_note_type_name (Ebl *ebl, const char *name,
- uint32_t type, char *buf,
- size_t len);
+ uint32_t type, GElf_Word descsz,
+ char *buf, size_t len);
/* Print information about object note if available. */
extern void ebl_object_note (Ebl *ebl, const char *name, uint32_t type,
diff --git a/src/elflint.c b/src/elflint.c
index fa3af4c..dff74ee 100644
--- a/src/elflint.c
+++ b/src/elflint.c
@@ -1,5 +1,5 @@
/* Pedantic checking of ELF files compliance with gABI/psABI spec.
- Copyright (C) 2001-2015, 2017 Red Hat, Inc.
+ Copyright (C) 2001-2015, 2017, 2018 Red Hat, Inc.
This file is part of elfutils.
Written by Ulrich Drepper <drepper@redhat.com>, 2001.
@@ -4332,7 +4332,17 @@ section [%2d] '%s': unknown core file note type %" PRIu32
case NT_GNU_BUILD_ID:
case NT_GNU_GOLD_VERSION:
case NT_GNU_PROPERTY_TYPE_0:
- break;
+ if (nhdr.n_namesz == sizeof ELF_NOTE_GNU
+ && strcmp (data->d_buf + name_offset, ELF_NOTE_GNU) == 0)
+ break;
+ else
+ {
+ /* NT_VERSION is 1, same as NT_GNU_ABI_TAG. It has no
+ descriptor and (ab)uses the name as version string. */
+ if (nhdr.n_descsz == 0 && nhdr.n_type == NT_VERSION)
+ break;
+ }
+ goto unknown_note;
case 0:
/* Linux vDSOs use a type 0 note for the kernel version word. */
@@ -4341,16 +4351,21 @@ section [%2d] '%s': unknown core file note type %" PRIu32
break;
FALLTHROUGH;
default:
+ {
+ unknown_note:
if (shndx == 0)
ERROR (gettext ("\
-phdr[%d]: unknown object file note type %" PRIu32 " at offset %zu\n"),
- phndx, (uint32_t) nhdr.n_type, offset);
+phdr[%d]: unknown object file note type %" PRIu32 " with owner name '%s' at offset %zu\n"),
+ phndx, (uint32_t) nhdr.n_type,
+ (char *) data->d_buf + name_offset, offset);
else
ERROR (gettext ("\
section [%2d] '%s': unknown object file note type %" PRIu32
- " at offset %zu\n"),
+ " with owner name '%s' at offset %zu\n"),
shndx, section_name (ebl, shndx),
- (uint32_t) nhdr.n_type, offset);
+ (uint32_t) nhdr.n_type,
+ (char *) data->d_buf + name_offset, offset);
+ }
}
}
diff --git a/src/readelf.c b/src/readelf.c
index c6c3fb3..659e34f 100644
--- a/src/readelf.c
+++ b/src/readelf.c
@@ -12201,6 +12201,7 @@ handle_notes_data (Ebl *ebl, const GElf_Ehdr *ehdr,
? ebl_core_note_type_name (ebl, nhdr.n_type,
buf, sizeof (buf))
: ebl_object_note_type_name (ebl, name, nhdr.n_type,
+ nhdr.n_descsz,
buf2, sizeof (buf2)));
/* Filter out invalid entries. */

3
elfutils.spec
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@ -27,6 +27,7 @@ Patch4: elfutils-0.174-size-rec-ar.patch
Patch5: elfutils-0.174-ar-sh_entsize-zero.patch
Patch6: elfutils-0.174-x86_64_unwind.patch
Patch7: elfutils-0.174-gnu-property-note.patch
Patch8: elfutils-0.174-version-note.patch
Requires: elfutils-libelf%{depsuffix} = %{version}-%{release}
Requires: elfutils-libs%{depsuffix} = %{version}-%{release}
@ -202,6 +203,7 @@ profiling) of processes.
%patch5 -p1 -b .ar_sh_entsize_zero
%patch6 -p1 -b .x86_64_unwind
%patch7 -p1 -b .gnu_prop_note
%patch8 -p1 -b .version_note
# In case the above patches added any new test scripts, make sure they
# are executable.
@ -337,6 +339,7 @@ fi
* Wed Nov 14 2018 Mark Wielaard <mjw@fedoraproject.org>
- Add elfutils-0.174-x86_64_unwind.patch.
- Add elfutils-0.174-gnu-property-note.patch.
- Add elfutils-0.174-version-note.patch.
* Tue Nov 6 2018 Mark Wielaard <mjw@fedoraproject.org> - 0.174-4
- Add elfutils-0.174-size-rec-ar.patch