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systemtap: 3.3 -> 4.0

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Upgrade systemtap from 3.3 to 4.0: Removed backported patch.

Very short summary of major changes from SystemTap 4.0
announcement by Frank Ch. Eigler <fche@redhat.com>:

> prometheus exporter network service; ebpf support extensions including
> strings and implementation of traditional log(), sprintf() functions;
> rebuilt rich tapset coverage for 4.17+ syscalls and for
> tracepoint-based syscalls; script language tweaks for supporting
> machine-generated scripts

Fixes [YOCTO #12950]

(From OE-Core rev: d7f828223f3fabdadcff974c1ed6f8f74e438405)

Signed-off-by: Victor Kamensky <kamensky@cisco.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Victor Kamensky via Openembedded-core
2018-10-15 11:21:28 -07:00
committed by Richard Purdie
parent befef28652
commit 5a0e22ebc9
2 changed files with 2 additions and 49 deletions
Download Patch File Download Diff File Expand all files Collapse all files

46
meta/recipes-kernel/systemtap/systemtap/0001-dwflpp-function_entrypc-avoid-usage-of-uninitialized.patch
View File

@@ -1,46 +0,0 @@
From 8466fca2a074323a235ef38d425f994a2ff7e64f Mon Sep 17 00:00:00 2001
From: Victor Kamensky <kamensky@cisco.com>
Date: Mon, 9 Jul 2018 09:31:19 -0700
Subject: [PATCH] dwflpp::function_entrypc avoid usage of uninitialized memory
Failure on 3.3 release was observed. Failure was elusive and
disappeared after seemingly random configure option change, or when
code was compiled with -O1 or -O0 (vs default -O2). Running failing
test case under valgrind memcheck pointed to couple places where
'Conditional jump or move depends on uninitialised value(s)' occured.
After addressing these in two places in dwflpp::function_entrypc,
valgrind memcheck run is clean and original issue got fixed.
Upstream-Status: Backport
Signed-off-by: Victor Kamensky <kamensky@cisco.com>
---
dwflpp.cxx | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/dwflpp.cxx b/dwflpp.cxx
index bfbb6b096..2172e705a 100644
--- a/dwflpp.cxx
+++ b/dwflpp.cxx
@@ -2465,13 +2465,17 @@ bool
dwflpp::function_entrypc (Dwarf_Addr * addr)
{
assert (function);
+
+ // assign default value
+ *addr = 0;
+
// PR10574: reject 0, which tends to be eliminated COMDAT
if (dwarf_entrypc (function, addr) == 0 && *addr != 0)
return true;
/* Assume the entry pc is the base address, or (if zero)
the first address of the ranges covering this DIE. */
- Dwarf_Addr start, end;
+ Dwarf_Addr start = 0, end;
if (dwarf_ranges (function, 0, addr, &start, &end) >= 0)
{
if (*addr == 0)
--
2.17.1

5
meta/recipes-kernel/systemtap/systemtap_git.inc
View File

@@ -1,7 +1,7 @@
LICENSE = "GPLv2"
LIC_FILES_CHKSUM = "file://COPYING;md5=b234ee4d69f5fce4486a80fdaf4a4263"
SRCREV = "48867d1cface9445d58e3c6e14497770b7eb77e1"
PV = "3.3"
SRCREV = "428f84e9e656bce71018e8902e4edb8aacafcc0e"
PV = "4.0"
SRC_URI = "git://sourceware.org/git/systemtap.git \
file://configure-allow-to-disable-libvirt.patch \
@@ -11,7 +11,6 @@ SRC_URI = "git://sourceware.org/git/systemtap.git \
file://0001-Do-not-let-configure-write-a-python-location-into-th.patch \
file://0001-Install-python-modules-to-correct-library-dir.patch \
file://0001-staprun-stapbpf-don-t-support-installing-a-non-root.patch \
file://0001-dwflpp-function_entrypc-avoid-usage-of-uninitialized.patch \
"
COMPATIBLE_HOST = '(x86_64|i.86|powerpc|arm|aarch64|microblazeel|mips).*-linux'