[lttng-dev] [PATCH v3 2/2] Implement base-address-state tracing
Woegerer, Paul
Paul_Woegerer at mentor.com
Wed Nov 20 10:09:16 EST 2013
On 11/20/2013 02:26 PM, Amit Margalit wrote:
> Yes, that would be of value to me.
OK, I will submit a patch for that.
>
> Can you also have a variable to avoid tracking dlopen()/dlclose() ?
> Maybe one variable to disable both?
For tracking dlopen()/dlclose() you need to explicitly LD_PRELOAD
(liblttng-ust-dl.so.0) anyway. So no need for an extra variable there.
--
Best,
Paul
>
> Thanks,
>
> Amit Margalit
> IBM XIV - /Storage Reinvented/
> XIV-NAS Development Team
> Tel. 03-689-7774
> Fax. 03-689-7230
>
>
>
> From: "Woegerer, Paul" <Paul_Woegerer at mentor.com>
> To: Amit Margalit/Israel/IBM at IBMIL, Mathieu Desnoyers
> <mathieu.desnoyers at efficios.com>
> Cc: <lttng-dev at lists.lttng.org>
> Date: 11/19/2013 04:41 PM
> Subject: Re: [lttng-dev] [PATCH v3 2/2] Implement
> base-address-state tracing
> ------------------------------------------------------------------------
>
>
>
> On 11/18/2013 08:59 AM, Amit Margalit wrote:
> > Hi,
> >
> > I understand, and I see two issue with this -
> >
> > 1. The application will still perform all the tracking, but when the
> > event is to be generated, it will be checked and since it is
> > disabled, will not be emitted.
> > While the overhead of checking whether the event is enabled is
> > indeed minimal, the overhead of tracking existing state, is not
> > negligible - it includes code, data and CPU cycles.
> > 2. I believe that the average user will simply want to use
> > "enable-event -u -a" or similar, and should not care about later
> > disabling these specific events.
> >
> >
> > I believe this ought to be a compile-time option, and I don't mind if
> > it defaults to "Enabled"...
>
> How about an environment variable (e.g.
> LTTNG_UST_WITHOUT_BADDR_STATEDUMP) that suppresses base address state
> tracing.
>
> Would that be of value to you ?
>
> --
> Best,
> Paul
>
> >
> > What do you think?
> >
> > Amit Margalit
> > IBM XIV - /Storage Reinvented/
> > XIV-NAS Development Team
> > Tel. 03-689-7774
> > Fax. 03-689-7230
> >
> >
> >
> > From: Mathieu Desnoyers <mathieu.desnoyers at efficios.com>
> > To: Amit Margalit/Israel/IBM at IBMIL
> > Cc: lttng-dev at lists.lttng.org, Paul Woegerer
> > <paul_woegerer at mentor.com>
> > Date: 11/17/2013 04:02 PM
> > Subject: Re: [lttng-dev] [PATCH v3 2/2] Implement
> > base-address-state tracing
> > ------------------------------------------------------------------------
> >
> >
> >
> > ------------------------------------------------------------------------
> >
> > *From: *"Amit Margalit" <AMITM at il.ibm.com>*
> > To: *"Mathieu Desnoyers" <mathieu.desnoyers at efficios.com>*
> > Cc: *lttng-dev at lists.lttng.org, "Paul Woegerer"
> > <paul_woegerer at mentor.com>*
> > Sent: *Sunday, November 17, 2013 4:36:19 AM*
> > Subject: *Re: [lttng-dev] [PATCH v3 2/2] Implement base-address-state
> > tracing
> >
> > I guess I missed something in the discussion - is this going to be
> > active all the time, or can I disable it somehow?
> >
> > Maybe a command-line switch to turn this off?
> >
> > For me this is overhead that I don't need and don't want.
> >
> > You just have to not enable those new events if you don't care about
> > them.
> >
> > Thanks,
> >
> > Mathieu
> >
> >
> > Thanks,
> >
> > Amit Margalit
> > IBM XIV - /Storage Reinvented/
> > XIV-NAS Development Team
> > Tel. 03-689-7774
> > Fax. 03-689-7230
> >
> >
> >
> > From: Mathieu Desnoyers <mathieu.desnoyers at efficios.com>
> > To: Paul Woegerer <paul_woegerer at mentor.com>
> > Cc: lttng-dev at lists.lttng.org
> > Date: 11/14/2013 09:30 PM
> > Subject: Re: [lttng-dev] [PATCH v3 2/2] Implement
> > base-address-state tracing
> > ------------------------------------------------------------------------
> >
> >
> >
> > ----- Original Message -----
> > > From: "Paul Woegerer" <paul_woegerer at mentor.com>
> > > To: lttng-dev at lists.lttng.org, "mathieu desnoyers"
> > <mathieu.desnoyers at efficios.com>
> > > Sent: Thursday, November 14, 2013 1:39:49 PM
> > > Subject: [PATCH v3 2/2] Implement base-address-state tracing
> > >
> > > Dump the base-address state (executable and shared objects) into
> session
> > > on session-enable (per-session events).
> >
> > Merged, thanks !
> >
> > Mathieu
> >
> > >
> > > Signed-off-by: Paul Woegerer <paul_woegerer at mentor.com>
> > > ---
> > > include/lttng/ust-tracepoint-event.h | 14 +++++++
> > > liblttng-ust-baddr/Makefile.am | 4 +-
> > > liblttng-ust-baddr/lttng-ust-baddr.c | 72
> > > ++++++++++++++++++++++++++++++++
> > > liblttng-ust-baddr/ust_baddr_statedump.c | 21 ++++++++++
> > > liblttng-ust-baddr/ust_baddr_statedump.h | 60
> > ++++++++++++++++++++++++++
> > > liblttng-ust/lttng-events.c | 2 +
> > > liblttng-ust/lttng-tracer-core.h | 3 ++
> > > liblttng-ust/lttng-ust-comm.c | 60
> > ++++++++++++++++++++++++++
> > > 8 files changed, 235 insertions(+), 1 deletion(-)
> > > create mode 100644 liblttng-ust-baddr/ust_baddr_statedump.c
> > > create mode 100644 liblttng-ust-baddr/ust_baddr_statedump.h
> > >
> > > diff --git a/include/lttng/ust-tracepoint-event.h
> > > b/include/lttng/ust-tracepoint-event.h
> > > index bb3a05d..be58030 100644
> > > --- a/include/lttng/ust-tracepoint-event.h
> > > +++ b/include/lttng/ust-tracepoint-event.h
> > > @@ -480,6 +480,18 @@ size_t
> > > __event_get_align__##_provider##___##_name(_TP_ARGS_PROTO(_args))
> \
> > > #define TP_FIELDS(...) __VA_ARGS__
> > >
> > > /*
> > > + * For state dump, check that "session" argument (mandatory)
> > matches the
> > > + * session this event belongs to. Ensures that we write state dump
> > data only
> > > + * into the started session, not into all sessions.
> > > + */
> > > +#undef _TP_SESSION_CHECK
> > > +#ifdef TP_SESSION_CHECK
> > > +#define _TP_SESSION_CHECK(session, csession) (session == csession)
> > > +#else /* TP_SESSION_CHECK */
> > > +#define _TP_SESSION_CHECK(session, csession) 1
> > > +#endif /* TP_SESSION_CHECK */
> > > +
> > > +/*
> > > * Using twice size for filter stack data to hold size and
> pointer for
> > > * each field (worse case). For integers, max size required is
> 64-bit.
> > > * Same for double-precision floats. Those fit within
> > > @@ -506,6 +518,8 @@ void
> > > __event_probe__##_provider##___##_name(_TP_ARGS_DATA_PROTO(_args))
> > \
> > >
> >
> > \
> > > if (0)
> >
> > \
> > > (void) __dynamic_len_idx;
> > /* don't warn if unused */ \
> > > + if (!_TP_SESSION_CHECK(session, __chan->session))
> > \
> > > + return;
> >
> > \
> > > if
> > (caa_unlikely(!CMM_ACCESS_ONCE(__chan->session->active)))
> > \
> > > return;
> >
> > \
> > > if
> > (caa_unlikely(!CMM_ACCESS_ONCE(__chan->enabled)))
> > \
> > > diff --git a/liblttng-ust-baddr/Makefile.am
> > b/liblttng-ust-baddr/Makefile.am
> > > index afa9489..0d3cf28 100644
> > > --- a/liblttng-ust-baddr/Makefile.am
> > > +++ b/liblttng-ust-baddr/Makefile.am
> > > @@ -5,7 +5,9 @@ lib_LTLIBRARIES = liblttng-ust-baddr.la
> > > liblttng_ust_baddr_la_SOURCES = \
> > > lttng-ust-baddr.c \
> > > ust_baddr.c \
> > > - ust_baddr.h
> > > + ust_baddr.h \
> > > + ust_baddr_statedump.c \
> > > + ust_baddr_statedump.h
> > > liblttng_ust_baddr_la_LIBADD = \
> > > -L$(top_builddir)/liblttng-ust/.libs \
> > > -llttng-ust
> > > diff --git a/liblttng-ust-baddr/lttng-ust-baddr.c
> > > b/liblttng-ust-baddr/lttng-ust-baddr.c
> > > index f24a171..a856965 100644
> > > --- a/liblttng-ust-baddr/lttng-ust-baddr.c
> > > +++ b/liblttng-ust-baddr/lttng-ust-baddr.c
> > > @@ -34,6 +34,7 @@
> > >
> > > #define TRACEPOINT_DEFINE
> > > #include "ust_baddr.h"
> > > +#include "ust_baddr_statedump.h"
> > >
> > > int
> > > lttng_ust_push_baddr(void *so_base, const char *so_name)
> > > @@ -62,3 +63,74 @@ lttng_ust_pop_baddr(void *so_base)
> > > tracepoint(ust_baddr, pop, so_base);
> > > return 0;
> > > }
> > > +
> > > +static int
> > > +extract_soinfo_events(struct dl_phdr_info *info, size_t size, void
> > *data)
> > > +{
> > > + int j;
> > > + int num_loadable_segment = 0;
> > > +
> > > + for (j = 0; j < info->dlpi_phnum; j++) {
> > > + char resolved_path[PATH_MAX];
> > > + struct stat sostat;
> > > + void *base_addr_ptr;
> > > +
> > > + if (info->dlpi_phdr[j].p_type !=
> > PT_LOAD)
> > > + continue;
> > > +
> > > + /* Calculate virtual memory
> > address of the loadable segment */
> > > + base_addr_ptr = (void *)
> > info->dlpi_addr
> > > + +
> > info->dlpi_phdr[j].p_vaddr;
> > > +
> > > + num_loadable_segment += 1;
> > > + if ((info->dlpi_name == NULL ||
> > info->dlpi_name[0] == 0)
> > > +
> > && num_loadable_segment == 1) {
> > > + /*
> > > + * If the
> > iterated element is the executable itself we
> > > + * have to use
> > Dl_info to determine its full path
> > > + */
> > > + Dl_info dl_info
> > = { 0 };
> > > + if
> > (!dladdr(base_addr_ptr, &dl_info))
> > > +
> > return 0;
> > > + if
> > (!realpath(dl_info.dli_fname, resolved_path))
> > > +
> > return 0;
> > > + } else {
> > > + /*
> > > + * For regular
> > dl_phdr_info entries we have to check if
> > > + * the path to
> > the shared object really exists
> > > + */
> > > + if
> > (!realpath(info->dlpi_name, resolved_path)) {
> > > +
> > /* Found vDSO, put the 'path' into brackets */
> > > +
> > snprintf(resolved_path, PATH_MAX - 1, "[%s]",
> > > +
> > info->dlpi_name);
> > > + }
> > > + }
> > > +
> > > + if (stat(resolved_path, &sostat)) {
> > > + sostat.st_size
> = 0;
> > > + sostat.st_mtime
> > = -1;
> > > + }
> > > +
> > > + tracepoint(ust_baddr_statedump,
> > soinfo,
> > > +
> > (struct lttng_session *) data, base_addr_ptr,
> > > +
> > resolved_path, sostat.st_size, sostat.st_mtime);
> > > +
> > > + /*
> > > + * We are only interested in the
> > base address (lowest virtual
> > > + * address associated with the
> > memory image), skip the rest
> > > + */
> > > + break;
> > > + }
> > > + return 0;
> > > +}
> > > +
> > > +int
> > > +lttng_ust_baddr_statedump(struct lttng_session *session)
> > > +{
> > > + /*
> > > + * Iterate through the list of currently loaded
> > shared objects and
> > > + * generate events for loadable segments using
> > extract_soinfo_events
> > > + */
> > > + dl_iterate_phdr(extract_soinfo_events, session);
> > > + return 0;
> > > +}
> > > diff --git a/liblttng-ust-baddr/ust_baddr_statedump.c
> > > b/liblttng-ust-baddr/ust_baddr_statedump.c
> > > new file mode 100644
> > > index 0000000..75f74ca
> > > --- /dev/null
> > > +++ b/liblttng-ust-baddr/ust_baddr_statedump.c
> > > @@ -0,0 +1,21 @@
> > > +/*
> > > + * Copyright (C) 2013 Paul Woegerer <paul_woegerer at mentor.com>
> > > + *
> > > + * This library is free software; you can redistribute it and/or
> > > + * modify it under the terms of the GNU Lesser General Public
> > > + * License as published by the Free Software Foundation; either
> > > + * version 2.1 of the License, or (at your option) any later version.
> > > + *
> > > + * This library is distributed in the hope that it will be useful,
> > > + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> > > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> > > + * Lesser General Public License for more details.
> > > + *
> > > + * You should have received a copy of the GNU Lesser General Public
> > > + * License along with this library; if not, write to the Free
> Software
> > > + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
> > 02110-1301
> > > USA
> > > + */
> > > +
> > > +#define TRACEPOINT_CREATE_PROBES
> > > +#define TP_SESSION_CHECK
> > > +#include "ust_baddr_statedump.h"
> > > diff --git a/liblttng-ust-baddr/ust_baddr_statedump.h
> > > b/liblttng-ust-baddr/ust_baddr_statedump.h
> > > new file mode 100644
> > > index 0000000..77a9af4
> > > --- /dev/null
> > > +++ b/liblttng-ust-baddr/ust_baddr_statedump.h
> > > @@ -0,0 +1,60 @@
> > > +#undef TRACEPOINT_PROVIDER
> > > +#define TRACEPOINT_PROVIDER ust_baddr_statedump
> > > +
> > > +#if !defined(_TRACEPOINT_UST_BADDR_STATEDUMP_H) ||
> > > defined(TRACEPOINT_HEADER_MULTI_READ)
> > > +#define _TRACEPOINT_UST_BADDR_STATEDUMP_H
> > > +
> > > +#ifdef __cplusplus
> > > +extern "C" {
> > > +#endif
> > > +
> > > +/*
> > > + * Copyright (C) 2013 Paul Woegerer <paul_woegerer at mentor.com>
> > > + *
> > > + * Permission is hereby granted, free of charge, to any person
> > obtaining a
> > > copy
> > > + * of this software and associated documentation files (the
> > "Software"), to
> > > deal
> > > + * in the Software without restriction, including without
> > limitation the
> > > rights
> > > + * to use, copy, modify, merge, publish, distribute, sublicense,
> > and/or sell
> > > + * copies of the Software, and to permit persons to whom the
> > Software is
> > > + * furnished to do so, subject to the following conditions:
> > > + *
> > > + * The above copyright notice and this permission notice shall be
> > included
> > > in
> > > + * all copies or substantial portions of the Software.
> > > + *
> > > + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> > EXPRESS
> > > OR
> > > + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
> > MERCHANTABILITY,
> > > + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO
> > EVENT SHALL
> > > THE
> > > + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
> > OTHER
> > > + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
> > ARISING
> > > FROM,
> > > + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
> > DEALINGS IN
> > > THE
> > > + * SOFTWARE.
> > > + */
> > > +
> > > +#include <stdint.h>
> > > +#include <unistd.h>
> > > +#include <lttng/ust-events.h>
> > > +
> > > +#define LTTNG_UST_BADDR_STATEDUMP_PROVIDER
> > > +#include <lttng/tracepoint.h>
> > > +
> > > +TRACEPOINT_EVENT(ust_baddr_statedump, soinfo,
> > > + TP_ARGS(struct lttng_session *, session, void *,
> > baddr, const char*,
> > > sopath, int64_t, size, int64_t, mtime),
> > > + TP_FIELDS(
> > > + ctf_integer_hex(void *, baddr,
> baddr)
> > > + ctf_string(sopath, sopath)
> > > + ctf_integer(int64_t, size, size)
> > > + ctf_integer(int64_t, mtime, mtime)
> > > + )
> > > +)
> > > +
> > > +#endif /* _TRACEPOINT_UST_BADDR_STATEDUMP_H */
> > > +
> > > +#undef TRACEPOINT_INCLUDE
> > > +#define TRACEPOINT_INCLUDE "./ust_baddr_statedump.h"
> > > +
> > > +/* This part must be outside ifdef protection */
> > > +#include <lttng/tracepoint-event.h>
> > > +
> > > +#ifdef __cplusplus
> > > +}
> > > +#endif
> > > diff --git a/liblttng-ust/lttng-events.c b/liblttng-ust/lttng-events.c
> > > index 26601a6..21e3639 100644
> > > --- a/liblttng-ust/lttng-events.c
> > > +++ b/liblttng-ust/lttng-events.c
> > > @@ -293,6 +293,8 @@ int lttng_session_enable(struct lttng_session
> > *session)
> > > /* Set atomically the state to "active" */
> > > CMM_ACCESS_ONCE(session->active) = 1;
> > > CMM_ACCESS_ONCE(session->been_active) = 1;
> > > +
> > > + lttng_ust_sockinfo_session_enabled(session->owner,
> > session);
> > > end:
> > > return ret;
> > > }
> > > diff --git a/liblttng-ust/lttng-tracer-core.h
> > > b/liblttng-ust/lttng-tracer-core.h
> > > index f643a7e..e7f549e 100644
> > > --- a/liblttng-ust/lttng-tracer-core.h
> > > +++ b/liblttng-ust/lttng-tracer-core.h
> > > @@ -45,4 +45,7 @@ const char *lttng_ust_obj_get_name(int id);
> > >
> > > int lttng_get_notify_socket(void *owner);
> > >
> > > +void lttng_ust_sockinfo_session_enabled(void *owner,
> > > + struct lttng_session
> > *session_enabled);
> > > +
> > > #endif /* _LTTNG_TRACER_CORE_H */
> > > diff --git a/liblttng-ust/lttng-ust-comm.c
> > b/liblttng-ust/lttng-ust-comm.c
> > > index a6e4ba3..6ef3006 100644
> > > --- a/liblttng-ust/lttng-ust-comm.c
> > > +++ b/liblttng-ust/lttng-ust-comm.c
> > > @@ -34,6 +34,7 @@
> > > #include <time.h>
> > > #include <assert.h>
> > > #include <signal.h>
> > > +#include <dlfcn.h>
> > > #include <urcu/uatomic.h>
> > > #include <urcu/futex.h>
> > > #include <urcu/compiler.h>
> > > @@ -106,6 +107,7 @@ struct sock_info {
> > >
> > > char wait_shm_path[PATH_MAX];
> > > char *wait_shm_mmap;
> > > + struct lttng_session *session_enabled;
> > > };
> > >
> > > /* Socket from app (connect) to session daemon (listen) for
> > communication */
> > > @@ -122,6 +124,8 @@ struct sock_info global_apps = {
> > > .notify_socket = -1,
> > >
> > > .wait_shm_path = "/" LTTNG_UST_WAIT_FILENAME,
> > > +
> > > + .session_enabled = NULL,
> > > };
> > >
> > > /* TODO: allow global_apps_sock_path override */
> > > @@ -135,6 +139,8 @@ struct sock_info local_apps = {
> > >
> > > .socket = -1,
> > > .notify_socket = -1,
> > > +
> > > + .session_enabled = NULL,
> > > };
> > >
> > > static int wait_poll_fallback;
> > > @@ -176,6 +182,7 @@ static const char *cmd_name_mapping[] = {
> > >
> > > static const char *str_timeout;
> > > static int got_timeout_env;
> > > +static void *ust_baddr_handle;
> > >
> > > extern void lttng_ring_buffer_client_overwrite_init(void);
> > > extern void lttng_ring_buffer_client_overwrite_rt_init(void);
> > > @@ -235,6 +242,39 @@ void print_cmd(int cmd, int handle)
> > > }
> > >
> > > static
> > > +void *lttng_ust_baddr_handle(void)
> > > +{
> > > + if (!ust_baddr_handle) {
> > > + ust_baddr_handle = dlopen(
> > > +
> > "liblttng-ust-baddr.so.0", RTLD_NOW | RTLD_GLOBAL);
> > > + if (ust_baddr_handle == NULL)
> > > + ERR("%s",
> > dlerror());
> > > + }
> > > + return ust_baddr_handle;
> > > +}
> > > +
> > > +static
> > > +int lttng_ust_baddr_statedump(struct lttng_session *session)
> > > +{
> > > + static
> > > + int (*lttng_ust_baddr_init_fn)(struct
> > lttng_session *);
> > > +
> > > + if (!lttng_ust_baddr_init_fn) {
> > > + void *baddr_handle =
> > lttng_ust_baddr_handle();
> > > + if (baddr_handle) {
> > > +
> > lttng_ust_baddr_init_fn = dlsym(baddr_handle,
> > > +
> > "lttng_ust_baddr_statedump");
> > > + if
> > (lttng_ust_baddr_init_fn == NULL)
> > > +
> > ERR("%s", dlerror());
> > > + }
> > > + if (!lttng_ust_baddr_init_fn)
> > > + return -1;
> > > + }
> > > +
> > > + return lttng_ust_baddr_init_fn(session);
> > > +}
> > > +
> > > +static
> > > int setup_local_apps(void)
> > > {
> > > const char *home_dir;
> > > @@ -1143,6 +1183,13 @@ restart:
> > > ret =
> > handle_message(sock_info, sock, &lum);
> > > if (ret) {
> > >
> > ERR("Error handling message for %s socket", sock_info->name);
> > > + } else {
> > > +
> > struct lttng_session *session =
> > > +
> > sock_info->session_enabled;
> > > +
> > if (session) {
> > > +
> > sock_info->session_enabled = NULL;
> > > +
> > lttng_ust_baddr_statedump(session);
> > > + }
> > > }
> > > continue;
> > > default:
> > > @@ -1379,6 +1426,12 @@ void __attribute__((destructor))
> > lttng_ust_exit(void)
> > > * cleanup the threads if there are stalled in a
> > syscall.
> > > */
> > > lttng_ust_cleanup(1);
> > > +
> > > + if (ust_baddr_handle) {
> > > + int ret =
> dlclose(ust_baddr_handle);
> > > + if (ret)
> > > + ERR("%s",
> > dlerror());
> > > + }
> > > }
> > >
> > > /*
> > > @@ -1456,3 +1509,10 @@ void ust_after_fork_child(sigset_t
> > *restore_sigset)
> > > ust_after_fork_common(restore_sigset);
> > > lttng_ust_init();
> > > }
> > > +
> > > +void lttng_ust_sockinfo_session_enabled(void *owner,
> > > + struct lttng_session
> > *session_enabled)
> > > +{
> > > + struct sock_info *sock_info = owner;
> > > + sock_info->session_enabled = session_enabled;
> > > +}
> > > --
> > > 1.8.4.2
> > >
> > >
> >
> > --
> > Mathieu Desnoyers
> > EfficiOS Inc._
> > __http://www.efficios.com_ <http://www.efficios.com/>
> >
> > _______________________________________________
> > lttng-dev mailing list
> > lttng-dev at lists.lttng.org_
> > __http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev_
> >
> >
> >
> >
> >
> > --
> > Mathieu Desnoyers
> > EfficiOS Inc.
> > http://www.efficios.com
> <http://www.efficios.com/><http://www.efficios.com/>
>
>
> --
> Paul Woegerer, SW Development Engineer
> Sourcery Analyzer <http://go.mentor.com/sourceryanalyzer>
> Mentor Graphics, Embedded Software Division
>
>
--
Paul Woegerer, SW Development Engineer
Sourcery Analyzer <http://go.mentor.com/sourceryanalyzer>
Mentor Graphics, Embedded Software Division
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