Resolves #1634684 - usdt probes failing

Signed-off-by: Rafael dos Santos <rdossant@redhat.com>

bcc-0.7.0-usdt-addr-calc.patch

@@ -0,0 +1,24 @@
+From b998421b18a34d0b47a6bda996c91bad12fa5da0 Mon Sep 17 00:00:00 2001
+From: Ildar Musin <zildermann@gmail.com>
+Date: Thu, 1 Nov 2018 01:19:41 +0100
+Subject: [PATCH] Fix USDT semaphore address calculation for position
+ independent executables (resolves #1998) (#2023)
+
+Fix USDT semaphore address calculation for position independent executables
+---
+ src/cc/bcc_syms.cc | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/cc/bcc_syms.cc b/src/cc/bcc_syms.cc
+index a52e3f432..be9781afc 100644
+--- a/src/cc/bcc_syms.cc
++++ b/src/cc/bcc_syms.cc
+@@ -444,7 +444,7 @@ int bcc_resolve_global_addr(int pid, const char *module, const uint64_t address,
+       mod.start == 0x0)
+     return -1;
+ 
+-  *global = mod.start + mod.file_offset + address;
++  *global = mod.start - mod.file_offset + address;
+   return 0;
+ }
+ 

bcc.spec

@@ -9,7 +9,7 @@
 
 Name:           bcc
 Version:        0.7.0
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        BPF Compiler Collection (BCC)
 License:        ASL 2.0
 URL:            https://github.com/iovisor/bcc
@@ -21,6 +21,8 @@ Patch0:         %{name}-%{version}-uflow-str-bytes.patch
 Patch1:         %{name}-%{version}-utf8-encoding.patch
 # https://bugzilla.redhat.com/show_bug.cgi?id=1637515
 Patch2:         %{name}-%{version}-killsnoop-str-bytes.patch
+# https://bugzilla.redhat.com/show_bug.cgi?id=1634684
+Patch3:         %{name}-%{version}-usdt-addr-calc.patch
 
 # Arches will be included as upstream support is added and dependencies are
 # satisfied in the respective arches
@@ -172,6 +174,9 @@ mv %{buildroot}%{_datadir}/%{name}/examples %{buildroot}%{_docdir}/%{name}/
 
 
 %changelog
+* Thu Nov 01 2018 Rafael dos Santos <rdossant@redhat.com> - 0.7.0-4
+- Fix attaching to usdt probes (#1634684)
+
 * Mon Oct 22 2018 Rafael dos Santos <rdossant@redhat.com> - 0.7.0-3
 - Fix encoding of non-utf8 characters (#1516678)
 - Fix str-bytes conversion in killsnoop (#1637515)