commit: 46ee4b72fa83b9652bf4ac5a92914f7a558b4cab
Author: Sergei Trofimovich <slyfox <AT> gentoo <DOT> org>
AuthorDate: Fri Nov 11 23:02:48 2016 +0000
Commit: Sergei Trofimovich <slyfox <AT> gentoo <DOT> org>
CommitDate: Fri Nov 11 23:03:20 2016 +0000
URL: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=46ee4b72
app-forensics/honggfuzz: unbreak --linux_perf_bts_block flag
Workaround --linux_perf_bts_block flag breakage.
Mateusz reports that running honggfuzz fails as:
[2016-11-11T21:54:27+0000][W][1190] arch_perfOpen():223 mmap(mmapAuxBuf)
failed,
try increasing the kernel.perf_event_mlock_kb sysctl (up to even
300000000): Cannot allocate memory
It seems aux data also needs WRITE permissions.
Reported-by: Mateusz Lenik
Package-Manager: portage-2.3.2
.../honggfuzz/files/honggfuzz-0.8-bts-perms.patch | 19 ++++++++++
app-forensics/honggfuzz/honggfuzz-0.8-r1.ebuild | 42 ++++++++++++++++++++++
2 files changed, 61 insertions(+)
diff --git a/app-forensics/honggfuzz/files/honggfuzz-0.8-bts-perms.patch
b/app-forensics/honggfuzz/files/honggfuzz-0.8-bts-perms.patch
new file mode 100644
index 00000000..e8ac491
--- /dev/null
+++ b/app-forensics/honggfuzz/files/honggfuzz-0.8-bts-perms.patch
@@ -0,0 +1,19 @@
+Workaround --linux_perf_bts_block flag breakage.
+
+Mateusz reports that running honggfuzz fails as:
+ [2016-11-11T21:54:27+0000][W][1190] arch_perfOpen():223 mmap(mmapAuxBuf)
failed,
+ try increasing the kernel.perf_event_mlock_kb sysctl (up to even
300000000): Cannot allocate memory
+
+It seems aux data also needs WRITE permissions.
+
+Reported-by: Mateusz Lenik
+diff --git a/linux/perf.c b/linux/perf.c
+index d8ede5f..2f71b3d 100644
+--- a/linux/perf.c
++++ b/linux/perf.c
+@@ -217,3 +217,4 @@ static bool arch_perfOpen(honggfuzz_t * hfuzz, fuzzer_t *
fuzzer UNUSED, pid_t p
+ fuzzer->linux.perfMmapAux =
+- mmap(NULL, pem->aux_size, PROT_READ, MAP_SHARED, *perfFd,
pem->aux_offset);
++ mmap(NULL, pem->aux_size, PROT_READ | PROT_WRITE, MAP_SHARED,
*perfFd, pem->aux_offset);
++
+ if (fuzzer->linux.perfMmapAux == MAP_FAILED) {
diff --git a/app-forensics/honggfuzz/honggfuzz-0.8-r1.ebuild
b/app-forensics/honggfuzz/honggfuzz-0.8-r1.ebuild
new file mode 100644
index 00000000..8c9774c
--- /dev/null
+++ b/app-forensics/honggfuzz/honggfuzz-0.8-r1.ebuild
@@ -0,0 +1,42 @@
+# Copyright 1999-2016 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+EAPI=6
+
+inherit toolchain-funcs
+
+DESCRIPTION="A general purpose fuzzer with feedback support"
+HOMEPAGE="http://google.github.io/honggfuzz/";
+SRC_URI="https://github.com/google/honggfuzz/archive/${PV}.tar.gz ->
${P}.tar.gz"
+
+LICENSE="Apache-2.0"
+SLOT="0"
+KEYWORDS="~amd64"
+IUSE=""
+
+RDEPEND="
+ sys-libs/binutils-libs:=
+ sys-libs/libunwind
+"
+
+DEPEND="${RDEPEND}"
+
+DOCS=(
+ CHANGELOG
+ COPYING
+ CONTRIBUTING
+ README.md
+)
+
+PATCHES=("${FILESDIR}"/${P}-bts-perms.patch)
+
+src_compile() {
+ CC="$(tc-getCC)" CFLAGS="${CFLAGS}" LDFLAGS="${LDFLAGS}" emake
+}
+
+src_install() {
+ dobin ${PN}
+
+ einstalldocs
+}
