3.13.0-11 - Add valgrind-3.13.0-debug-alt-file.patch.
This commit is contained in:
Mark Wielaard
parent
5c9a40daf7
commit
6cc1e8596b
113
valgrind-3.13.0-debug-alt-file.patch
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113
valgrind-3.13.0-debug-alt-file.patch
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From f3521f1d69312eb476c53eea06ee1187844efe18 Mon Sep 17 00:00:00 2001
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From: Mark Wielaard <mark@klomp.org>
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Date: Sat, 9 Dec 2017 23:01:29 +0100
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Subject: [PATCH] Fix gnu debug alt file resolving.
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The path to the alt file is relative to the actual debug file.
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Make sure that we got the real file, not a (build-id) symlink.
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---
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coregrind/m_debuginfo/readelf.c | 57 +++++++++++++++++++++++++++++++++++++++--
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1 file changed, 55 insertions(+), 2 deletions(-)
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diff --git a/coregrind/m_debuginfo/readelf.c b/coregrind/m_debuginfo/readelf.c
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index e612250..2d52322 100644
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--- a/coregrind/m_debuginfo/readelf.c
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+++ b/coregrind/m_debuginfo/readelf.c
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@@ -33,6 +33,7 @@
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#include "pub_core_basics.h"
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#include "pub_core_vki.h"
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+#include "pub_core_vkiscnums.h"
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#include "pub_core_debuginfo.h"
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#include "pub_core_libcbase.h"
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#include "pub_core_libcprint.h"
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@@ -40,6 +41,7 @@
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#include "pub_core_machine.h" /* VG_ELF_CLASS */
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#include "pub_core_options.h"
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#include "pub_core_oset.h"
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+#include "pub_core_syscall.h"
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#include "pub_core_tooliface.h" /* VG_(needs) */
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#include "pub_core_xarray.h"
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#include "priv_misc.h" /* dinfo_zalloc/free/strdup */
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@@ -1527,6 +1529,51 @@ static Bool check_compression(ElfXX_Shdr* h, DiSlice* s) {
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return True;
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}
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+/* Helper function to get the readlink path. Returns NULL on error.
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+ Otherwise the result needs to be released with dinfo_free.
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+*/
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+static HChar* readlink_path (const HChar *path)
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+{
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+ SizeT bufsiz = VG_(strlen)(path);
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+ HChar *buf = ML_(dinfo_strdup)("readlink_path.strdup", path);
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+ UInt tries = 8;
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+
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+ while (tries > 0) {
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+ SysRes res;
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+#if defined(VGP_arm64_linux)
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+ res = VG_(do_syscall4)(__NR_readlinkat, VKI_AT_FDCWD,
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+ (UWord)path, (UWord)buf, bufsiz);
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+#elif defined(VGO_linux) || defined(VGO_darwin)
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+ res = VG_(do_syscall3)(__NR_readlink, (UWord)path, (UWord)buf, bufsiz);
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+#elif defined(VGO_solaris)
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+ res = VG_(do_syscall4)(__NR_readlinkat, VKI_AT_FDCWD, (UWord)path,
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+ (UWord)buf, bufsiz);
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+#else
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+# error Unknown OS
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+#endif
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+ if (sr_isError(res))
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+ return NULL;
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+
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+ SSizeT r = sr_Res(res);
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+ if (r < 0) break;
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+ if (r == bufsiz) { // buffer too small; increase and retry
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+ bufsiz *= 2 + 16;
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+ buf = ML_(dinfo_realloc)("readlink_path.realloc", buf, bufsiz);
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+ tries--;
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+ continue;
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+ }
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+ buf[r] = '\0';
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+ break;
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+ }
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+
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+ if (tries == 0) { // We tried, but weird long path?
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+ ML_(dinfo_free)(buf);
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+ return NULL;
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+ }
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+
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+ return buf;
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+}
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+
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/* The central function for reading ELF debug info. For the
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object/exe specified by the DebugInfo, find ELF sections, then read
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the symbols, line number info, file name info, CFA (stack-unwind
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@@ -2926,8 +2973,12 @@ Bool ML_(read_elf_debug_info) ( struct _DebugInfo* di )
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(debugaltlink_escn.szB - buildid_offset)
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* 2 + 1);
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- /* The altfile might be relative to the debug file or main file. */
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+ /* The altfile might be relative to the debug file or main file.
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+ Make sure that we got the real file, not a symlink. */
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HChar *dbgname = di->fsm.dbgname ? di->fsm.dbgname : di->fsm.filename;
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+ HChar* rdbgname = readlink_path (dbgname);
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+ if (rdbgname == NULL)
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+ rdbgname = ML_(dinfo_strdup)("rdbgname", dbgname);
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for (j = 0; j < debugaltlink_escn.szB - buildid_offset; j++)
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VG_(sprintf)(
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@@ -2937,9 +2988,11 @@ Bool ML_(read_elf_debug_info) ( struct _DebugInfo* di )
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+ buildid_offset + j));
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/* See if we can find a matching debug file */
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- aimg = find_debug_file( di, dbgname, altbuildid,
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+ aimg = find_debug_file( di, rdbgname, altbuildid,
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altfile_str_m, 0, True );
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+ ML_(dinfo_free)(rdbgname);
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+
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if (altfile_str_m)
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ML_(dinfo_free)(altfile_str_m);
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ML_(dinfo_free)(altbuildid);
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--
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1.8.3.1
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@ -3,7 +3,7 @@
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Summary: Tool for finding memory management bugs in programs
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Summary: Tool for finding memory management bugs in programs
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Name: %{?scl_prefix}valgrind
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Name: %{?scl_prefix}valgrind
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Version: 3.13.0
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Version: 3.13.0
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Release: 10%{?dist}
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Release: 11%{?dist}
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Epoch: 1
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Epoch: 1
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License: GPLv2+
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License: GPLv2+
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URL: http://www.valgrind.org/
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URL: http://www.valgrind.org/
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@ -147,6 +147,9 @@ Patch16: valgrind-3.13.0-static-tls.patch
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# KDE#386397 PPC64 valgrind truncates powerpc timebase to 32-bits.
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# KDE#386397 PPC64 valgrind truncates powerpc timebase to 32-bits.
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Patch17: valgrind-3.13.0-ppc64-timebase.patch
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Patch17: valgrind-3.13.0-ppc64-timebase.patch
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# KDE#387773 - Files in .gnu_debugaltlink should be resolved relative to .debug
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Patch18: valgrind-3.13.0-debug-alt-file.patch
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%if %{build_multilib}
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%if %{build_multilib}
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# Ensure glibc{,-devel} is installed for both multilib arches
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# Ensure glibc{,-devel} is installed for both multilib arches
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BuildRequires: /lib/libc.so.6 /usr/lib/libc.so /lib64/libc.so.6 /usr/lib64/libc.so
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BuildRequires: /lib/libc.so.6 /usr/lib/libc.so /lib64/libc.so.6 /usr/lib64/libc.so
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@ -278,6 +281,7 @@ Valgrind User Manual for details.
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%patch15 -p1
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%patch15 -p1
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%patch16 -p1
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%patch16 -p1
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%patch17 -p1
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%patch17 -p1
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%patch18 -p1
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%build
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%build
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# We need to use the software collection compiler and binutils if available.
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# We need to use the software collection compiler and binutils if available.
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@ -480,6 +484,9 @@ echo ===============END TESTING===============
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%endif
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%endif
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%changelog
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%changelog
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* Sun Dec 10 2017 Mark Wielaard <mjw@fedoraproject.org> - 3.13.0-11
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- Add valgrind-3.13.0-debug-alt-file.patch.
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* Thu Nov 2 2017 Mark Wielaard <mjw@fedoraproject.org> - 3.13.0-10
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* Thu Nov 2 2017 Mark Wielaard <mjw@fedoraproject.org> - 3.13.0-10
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- Add valgrind-3.13.0-ppc64-timebase.patch.
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- Add valgrind-3.13.0-ppc64-timebase.patch.
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