- Update to release 1.18
OBS-URL: https://build.opensuse.org/package/show/devel:tools/dwarves?expand=0&rev=46
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version https://git-lfs.github.com/spec/v1
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oid sha256:f196b0604c16a3812031ed2cd4c14d27fef889186b514a16db2d2f52717aef70
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size 309028
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7
dwarves-1.18.tar.sign
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7
dwarves-1.18.tar.sign
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3
dwarves-1.18.tar.xz
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3
dwarves-1.18.tar.xz
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version https://git-lfs.github.com/spec/v1
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oid sha256:95aaec4c1d51816f6b2ce17fb80ddc95d48578e6bbdeafead3ecaf33a323d2c9
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size 324912
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@ -1,37 +0,0 @@
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From 2ecc308518edfe059f34fd1ad69ef39ad011cab9 Mon Sep 17 00:00:00 2001
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From: Arnaldo Carvalho de Melo <acme@redhat.com>
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Date: Fri, 18 Sep 2020 16:56:13 -0300
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Subject: [PATCH] dwarf_loader: Bail out at DW_TAG_imported_unit tags
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We need to support these in a future version, for now, just bail out to
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avoid segfaults afterwards.
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$ pahole examples/sles/vmlinux-5.3.18-109.g8ff6392-default.debug
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WARNING: DW_TAG_partial_unit used, some types will not be considered!
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Probably this was optimized using a tool like 'dwz'
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A future version of pahole will take support this.
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$
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Reported-by: Tom de Vries
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Bugtracker: https://github.com/acmel/dwarves/issues/10
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Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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---
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dwarf_loader.c | 2 ++
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1 file changed, 2 insertions(+)
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diff --git a/dwarf_loader.c b/dwarf_loader.c
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index 74e0227..fd058aa 100644
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--- a/dwarf_loader.c
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+++ b/dwarf_loader.c
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@@ -1615,6 +1615,8 @@ static struct tag *__die__process_tag(Dwarf_Die *die, struct cu *cu,
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struct tag *tag;
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switch (dwarf_tag(die)) {
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+ case DW_TAG_imported_unit:
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+ return NULL; // We don't support imported units yet, so to avoid segfaults
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case DW_TAG_array_type:
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tag = die__create_new_array(die, cu); break;
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case DW_TAG_base_type:
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--
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2.28.0
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@ -1,44 +0,0 @@
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From 8c92fd298101171dc8479acf4af2fdd2fad88c28 Mon Sep 17 00:00:00 2001
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From: Arnaldo Carvalho de Melo <acme@redhat.com>
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Date: Fri, 18 Sep 2020 13:53:01 -0300
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Subject: [PATCH] dwarf_loader: Ignore entries in a DW_TAG_partial_unit, for
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now
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We will have to keep all CUs in memory and do lookups in imported units,
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for now, just don't segfault.
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Reported-by: Tom de Vries
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Bugtracker: https://github.com/acmel/dwarves/issues/10
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Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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---
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dwarf_loader.c | 14 +++++++++++++-
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1 file changed, 13 insertions(+), 1 deletion(-)
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diff --git a/dwarf_loader.c b/dwarf_loader.c
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index b8d7b35..74e0227 100644
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--- a/dwarf_loader.c
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+++ b/dwarf_loader.c
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@@ -2085,7 +2085,19 @@ static int die__process(Dwarf_Die *die, struct cu *cu)
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Dwarf_Die child;
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const uint16_t tag = dwarf_tag(die);
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- if (tag != DW_TAG_compile_unit && tag != DW_TAG_type_unit && tag != DW_TAG_partial_unit) {
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+ if (tag == DW_TAG_partial_unit) {
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+ static bool warned;
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+
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+ if (!warned) {
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+ fprintf(stderr, "WARNING: DW_TAG_partial_unit used, some types will not be considered!\n"
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+ " Probably this was optimized using a tool like 'dwz'\n"
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+ " A future version of pahole will take support this.\n");
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+ warned = true;
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+ }
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+ return 0; // so that other units can be processed
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+ }
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+
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+ if (tag != DW_TAG_compile_unit && tag != DW_TAG_type_unit) {
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fprintf(stderr, "%s: DW_TAG_compile_unit, DW_TAG_type_unit or DW_TAG_partial_unit expected got %s!\n",
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__FUNCTION__, dwarf_tag_name(tag));
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return -EINVAL;
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--
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2.28.0
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@ -1,3 +1,16 @@
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-------------------------------------------------------------------
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Fri Oct 2 22:00:47 UTC 2020 - Jan Engelhardt <jengelh@inai.de>
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- Update to release 1.18
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* pahole now should be segfault free when handling gdb test
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suit DWARF files, including ADA, FORTRAN, rust and dwp
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compressed files (the latter is refused).
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* Bail out on partial units for now, avoiding segfaults.
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- Drop
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dwarves-dwarf_loader-Ignore-entries-in-a-DW_TAG_partial_unit-for-now.patch,
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dwarves-dwarf_loader-Bail-out-at-DW_TAG_imported_unit-tags.patch
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(merged)
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-------------------------------------------------------------------
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Mon Sep 21 18:48:25 UTC 2020 - Tom de Vries <tdevries@suse.com>
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@ -17,7 +17,7 @@
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Name: dwarves
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Version: 1.17
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Version: 1.18
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Release: 0
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Summary: DWARF utilities
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License: GPL-2.0-only
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@ -28,9 +28,7 @@ URL: http://acmel.wordpress.com/
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Source: https://fedorapeople.org/~acme/dwarves/dwarves-%version.tar.xz
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Source2: https://fedorapeople.org/~acme/dwarves/dwarves-%version.tar.sign
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Source9: baselibs.conf
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Patch0: libbpf-Fix-libbpf-hashmap-on-I-LP32-architectures.patch
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Patch1: dwarves-dwarf_loader-Ignore-entries-in-a-DW_TAG_partial_unit-for-now.patch
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Patch2: dwarves-dwarf_loader-Bail-out-at-DW_TAG_imported_unit-tags.patch
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Patch1: libbpf-Fix-libbpf-hashmap-on-I-LP32-architectures.patch
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BuildRequires: cmake
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BuildRequires: libdw-devel >= 0.170
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%if 0%{?suse_version} < 1550
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@ -90,7 +88,7 @@ for processing DWARF, a debugging data format for ELF files.
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%build
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%cmake
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make %{?_smp_mflags}
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%cmake_build
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%install
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%cmake_install
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