From e04f9ef1093287155f1d0820bd63c4b3c6c5d3d2 Mon Sep 17 00:00:00 2001
From: Nat Goodspeed <nat@lindenlab.com>
Date: Tue, 14 Dec 2010 19:27:43 -0500
Subject: [PATCH] SWAT-352: when loading lleventhost, call apr_dso_error()
function. In addition to its usual apr_sterror() function, APR defines a
special function specifically for errors relating to the apr_dso_*()
functions. Introduce ll_apr_warn_status() and ll_apr_assert_status()
overloads accepting apr_dso_handle_t* to call apr_dso_error() as well as
apr_strerror() and log its output. Use new ll_apr_warn_status() in
LLAppViewer::loadEventHostModule() for apr_dso_load() and apr_dso_sym()
calls. Instead of shorthand ll_apr_assert_status(), use with
llassert_always() so check is still performed even in Release build. Add more
lleventhost-related debugging output, e.g. full pathname of the DLL. On Mac
and Linux, call 'file' command to report nature of the DLL too.
---
indra/llcommon/llapr.cpp | 22 ++++++++++++++++++++--
indra/llcommon/llapr.h | 5 +++++
indra/newview/llappviewer.cpp | 33 +++++++++++++++++++++++++++++++--
3 files changed, 56 insertions(+), 4 deletions(-)
diff --git a/indra/llcommon/llapr.cpp b/indra/llcommon/llapr.cpp
index 66ec5bad2c5..d1c44c94032 100644
--- a/indra/llcommon/llapr.cpp
+++ b/indra/llcommon/llapr.cpp
@@ -28,6 +28,7 @@
#include "linden_common.h"
#include "llapr.h"
+#include "apr_dso.h"
apr_pool_t *gAPRPoolp = NULL; // Global APR memory pool
LLVolatileAPRPool *LLAPRFile::sAPRFilePoolp = NULL ; //global volatile APR memory pool.
@@ -279,14 +280,31 @@ bool ll_apr_warn_status(apr_status_t status)
{
if(APR_SUCCESS == status) return false;
char buf[MAX_STRING]; /* Flawfinder: ignore */
- apr_strerror(status, buf, MAX_STRING);
+ apr_strerror(status, buf, sizeof(buf));
LL_WARNS("APR") << "APR: " << buf << LL_ENDL;
return true;
}
+bool ll_apr_warn_status(apr_status_t status, apr_dso_handle_t *handle)
+{
+ bool result = ll_apr_warn_status(status);
+ // Despite observed truncation of actual Mac dylib load errors, increasing
+ // this buffer to more than MAX_STRING doesn't help: it appears that APR
+ // stores the output in a fixed 255-character internal buffer. (*sigh*)
+ char buf[MAX_STRING]; /* Flawfinder: ignore */
+ apr_dso_error(handle, buf, sizeof(buf));
+ LL_WARNS("APR") << "APR: " << buf << LL_ENDL;
+ return result;
+}
+
void ll_apr_assert_status(apr_status_t status)
{
- llassert(ll_apr_warn_status(status) == false);
+ llassert(! ll_apr_warn_status(status));
+}
+
+void ll_apr_assert_status(apr_status_t status, apr_dso_handle_t *handle)
+{
+ llassert(! ll_apr_warn_status(status, handle));
}
//---------------------------------------------------------------------
diff --git a/indra/llcommon/llapr.h b/indra/llcommon/llapr.h
index 4930270af81..af33ce666f1 100644
--- a/indra/llcommon/llapr.h
+++ b/indra/llcommon/llapr.h
@@ -53,6 +53,8 @@
extern LL_COMMON_API apr_thread_mutex_t* gLogMutexp;
extern apr_thread_mutex_t* gCallStacksLogMutexp;
+struct apr_dso_handle_t;
+
/**
* @brief initialize the common apr constructs -- apr itself, the
* global pool, and a mutex.
@@ -259,8 +261,11 @@ class LL_COMMON_API LLAPRFile : boost::noncopyable
* @return Returns <code>true</code> if status is an error condition.
*/
bool LL_COMMON_API ll_apr_warn_status(apr_status_t status);
+/// There's a whole other APR error-message function if you pass a DSO handle.
+bool LL_COMMON_API ll_apr_warn_status(apr_status_t status, apr_dso_handle_t* handle);
void LL_COMMON_API ll_apr_assert_status(apr_status_t status);
+void LL_COMMON_API ll_apr_assert_status(apr_status_t status, apr_dso_handle_t* handle);
extern "C" LL_COMMON_API apr_pool_t* gAPRPoolp; // Global APR memory pool
diff --git a/indra/newview/llappviewer.cpp b/indra/newview/llappviewer.cpp
index eb8d87e184a..a6953a47f02 100644
--- a/indra/newview/llappviewer.cpp
+++ b/indra/newview/llappviewer.cpp
@@ -4622,6 +4622,35 @@ void LLAppViewer::loadEventHostModule(S32 listen_port)
return;
}
+ LL_INFOS("eventhost") << "Found lleventhost at '" << dso_path << "'" << LL_ENDL;
+#if ! defined(LL_WINDOWS)
+ {
+ std::string outfile("/tmp/lleventhost.file.out");
+ std::string command("file '" + dso_path + "' > '" + outfile + "' 2>&1");
+ int rc = system(command.c_str());
+ if (rc != 0)
+ {
+ LL_WARNS("eventhost") << command << " ==> " << rc << ':' << LL_ENDL;
+ }
+ else
+ {
+ LL_INFOS("eventhost") << command << ':' << LL_ENDL;
+ }
+ {
+ std::ifstream reader(outfile.c_str());
+ std::string line;
+ while (std::getline(reader, line))
+ {
+ size_t len = line.length();
+ if (len && line[len-1] == '\n')
+ line.erase(len-1);
+ LL_INFOS("eventhost") << line << LL_ENDL;
+ }
+ }
+ remove(outfile.c_str());
+ }
+#endif // LL_WINDOWS
+
apr_dso_handle_t * eventhost_dso_handle = NULL;
apr_pool_t * eventhost_dso_memory_pool = NULL;
@@ -4630,13 +4659,13 @@ void LLAppViewer::loadEventHostModule(S32 listen_port)
apr_status_t rv = apr_dso_load(&eventhost_dso_handle,
dso_path.c_str(),
eventhost_dso_memory_pool);
- ll_apr_assert_status(rv);
+ llassert_always(! ll_apr_warn_status(rv, eventhost_dso_handle));
llassert_always(eventhost_dso_handle != NULL);
int (*ll_plugin_start_func)(LLSD const &) = NULL;
rv = apr_dso_sym((apr_dso_handle_sym_t*)&ll_plugin_start_func, eventhost_dso_handle, "ll_plugin_start");
- ll_apr_assert_status(rv);
+ llassert_always(! ll_apr_warn_status(rv, eventhost_dso_handle));
llassert_always(ll_plugin_start_func != NULL);
LLSD args;
--
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