From: paul_woegerer@mentor.com (Paul Woegerer)
Subject: [lttng-dev] [PATCH lttng-ust 0/2] Shared object base address tracing
Date: Mon, 11 Nov 2013 16:28:06 +0100 [thread overview]
Message-ID: <1384183688-19038-1-git-send-email-paul_woegerer@mentor.com> (raw)
The following two patches implement https://bugs.lttng.org/issues/474
The first patch provides tracing of dlopen/dlclose calls with the use of an
LD_PRELOAD library (liblttng-ust-dl.so) using the following events:
ust_baddr:push(void *baddr, const char*sopath, int64_t size, int64_t mtime)
ust_baddr:pop(void *baddr)
The second patch adds support for tracing the whole state of currently loaded
shared objects at session-enable time. The corresponding events are only
emitted into the session that got enabled. The following event is used:
ust_baddr_statedump (same args as ust_baddr:push)
Paul Woegerer (2):
Base-address tracing for dlopen and dlclose
Implement base-address-state tracing
Makefile.am | 2 +
configure.ac | 2 +
include/Makefile.am | 1 +
include/lttng/tracepoint.h | 12 +--
include/lttng/ust-dl.h | 54 ++++++++++++
include/lttng/ust-tracepoint-event.h | 14 +++
liblttng-ust-baddr/Makefile.am | 20 +++++
liblttng-ust-baddr/lttng-ust-baddr.c | 111 ++++++++++++++++++++++++
liblttng-ust-baddr/ust_baddr.c | 20 +++++
liblttng-ust-baddr/ust_baddr.h | 66 ++++++++++++++
liblttng-ust-baddr/ust_baddr_statedump.c | 21 +++++
liblttng-ust-baddr/ust_baddr_statedump.h | 60 +++++++++++++
liblttng-ust-dl/Makefile.am | 17 ++++
liblttng-ust-dl/ustdl.c | 144 +++++++++++++++++++++++++++++++
liblttng-ust/lttng-events.c | 10 +++
liblttng-ust/lttng-tracer-core.h | 2 +
liblttng-ust/lttng-ust-comm.c | 52 +++++++++++
17 files changed, 603 insertions(+), 5 deletions(-)
create mode 100644 include/lttng/ust-dl.h
create mode 100644 liblttng-ust-baddr/Makefile.am
create mode 100644 liblttng-ust-baddr/lttng-ust-baddr.c
create mode 100644 liblttng-ust-baddr/ust_baddr.c
create mode 100644 liblttng-ust-baddr/ust_baddr.h
create mode 100644 liblttng-ust-baddr/ust_baddr_statedump.c
create mode 100644 liblttng-ust-baddr/ust_baddr_statedump.h
create mode 100644 liblttng-ust-dl/Makefile.am
create mode 100644 liblttng-ust-dl/ustdl.c
--
1.8.4.2
next reply other threads:[~2013-11-11 15:28 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-11 15:28 Paul Woegerer [this message]
2013-11-11 15:28 ` [lttng-dev] [PATCH 1/2] Base-address tracing for dlopen and dlclose Paul Woegerer
2013-11-12 20:10 ` Matthew Khouzam
2013-11-13 13:25 ` Mathieu Desnoyers
2013-11-13 13:46 ` Woegerer, Paul
2013-11-13 13:51 ` Mathieu Desnoyers
2013-11-11 15:28 ` [lttng-dev] [PATCH 2/2] Implement base-address-state tracing Paul Woegerer
2013-11-13 13:48 ` Mathieu Desnoyers
2013-11-12 19:59 ` [lttng-dev] [PATCH lttng-ust 0/2] Shared object base address tracing Alexandre Montplaisir
2013-11-13 10:00 ` Woegerer, Paul
2013-11-13 13:19 ` Mathieu Desnoyers
2013-11-13 18:09 ` Alexandre Montplaisir
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