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crash-trace-command
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import crash-trace-command-2.0-16.el8

This commit is contained in:
CentOS Sources 2020-07-28 09:34:21 -04:00 committed by Stepan Oksanichenko
parent 2a981336d1
commit 66003516e2
2 changed files with 50 additions and 1 deletions
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43
SOURCES/ftrace_event_call_rh_data.patch Normal file
View File

@ -0,0 +1,43 @@
Fix the extension trace.so for RHEL7.6, which moved
ftrace_event_call.data into an anonymous union, and the
previous offset has changed, so the trace.so extension
module fails to load, indicating "no commands registered:
shared object unloaded".
--- crash-trace-command-2.0/trace.c.orig
+++ crash-trace-command-2.0/trace.c
@@ -853,8 +853,18 @@ static int syscall_get_enter_fields(ulon
inited = 1;
data_offset = MAX(MEMBER_OFFSET("ftrace_event_call", "data"),
MEMBER_OFFSET("trace_event_call", "data"));
- if (data_offset < 0)
- return -1;
+ if (data_offset < 0) {
+ /*
+ * rhel-7.6 moved the .data member into an anonymous union.
+ */
+ if (MEMBER_EXISTS("ftrace_event_call", "rh_data") &&
+ MEMBER_EXISTS("ftrace_event_data", "data")) {
+ data_offset = MEMBER_OFFSET("ftrace_event_call", "rh_data") +
+ MEMBER_OFFSET("ftrace_event_data", "data");
+ inited = 2;
+ } else
+ return -1;
+ }
enter_fields_offset = MEMBER_OFFSET("syscall_metadata", "enter_fields");
if (enter_fields_offset < 0)
@@ -868,6 +878,12 @@ work:
"read ftrace_event_call data", RETURN_ON_ERROR))
return -1;
+ if (inited == 2) {
+ if (!readmem(metadata, KVADDR, &metadata, sizeof(metadata),
+ "read ftrace_event_call data (indirect rh_data)", RETURN_ON_ERROR))
+ return -1;
+ }
+
*fields = metadata + enter_fields_offset;
return 0;
}

8
SPECS/crash-trace-command.spec
View File

@ -4,7 +4,7 @@
Summary: Trace extension module for the crash utility
Name: crash-trace-command
Version: 2.0
Release: 15%{?dist}
Release: 16%{?dist}
License: GPLv2
Group: Development/Debuggers
Source: %{name}-%{version}.tar.gz
@ -30,6 +30,7 @@ Patch8: TRACE_EVENT_FL_TRACEPOINT_flag.patch
Patch9: big_endian_nr_pages.patch
Patch10: ppc64_ring_buffer_read.patch
Patch11: rhel8_build.patch
Patch12: ftrace_event_call_rh_data.patch
%description
Command for reading ftrace data from a dumpfile.
@ -48,6 +49,7 @@ Command for reading ftrace data from a dumpfile.
%patch9 -p1 -b big_endian_nr_pages.patch
%patch10 -p1 -b ppc64_ring_buffer_read.patch
%patch11 -p1 -b rhel8_build.patch
%patch12 -p1 -b ftrace_event_call_rh_data.patch
%build
make
@ -65,6 +67,10 @@ rm -rf %{buildroot}
%doc COPYING
%changelog
* Tue Apr 28 2019 Dave Anderson <anderson@redhat.com> - 2.0-16
- Fix for RHEL7 ftrace_event_call data structure change
Resolves: rhbz#1827734
* Wed Sep 19 2018 Dave Anderson <anderson@redhat.com> - 2.0-15
- annocheck: link with -Wl,-z,now
Resolves: rhbz#1630558