#include "wx/log.h"
#endif
-#if defined(__DARWIN__)
+// only Mac OS X 10.3+ has dlfcn.h, and it is simpler to always provide our own
+// wrappers using the native functions instead of doing checks for OS version
+#ifndef __DARWIN__
#include <dlfcn.h>
#endif
+// if some flags are not supported, just ignore them
+#ifndef RTLD_LAZY
+ #define RTLD_LAZY 0
+#endif
+
+#ifndef RTLD_NOW
+ #define RTLD_NOW 0
+#endif
+
+#ifndef RTLD_GLOBAL
+ #define RTLD_GLOBAL 0
+#endif
+
+
#if defined(HAVE_DLOPEN) || defined(__DARWIN__)
#define USE_POSIX_DL_FUNCS
#elif !defined(HAVE_SHL_LOAD)
static char dl_last_error[1024];
-static
-void TranslateError(const char *path, int number)
-{
- unsigned int index;
- static char *OFIErrorStrings[] =
- {
- "%s(%d): Object Image Load Failure\n",
- "%s(%d): Object Image Load Success\n",
- "%s(%d): Not an recognisable object file\n",
- "%s(%d): No valid architecture\n",
- "%s(%d): Object image has an invalid format\n",
- "%s(%d): Invalid access (permissions?)\n",
- "%s(%d): Unknown error code from NSCreateObjectFileImageFromFile\n",
- };
-#define NUM_OFI_ERRORS (sizeof(OFIErrorStrings) / sizeof(OFIErrorStrings[0]))
-
- index = number;
- if (index > NUM_OFI_ERRORS - 1) {
- index = NUM_OFI_ERRORS - 1;
- }
- sprintf(dl_last_error, OFIErrorStrings[index], path, number);
-}
-
const char *dlerror()
{
return dl_last_error;
NSObjectFileImage ofile;
NSModule handle = NULL;
- int dyld_result = NSCreateObjectFileImageFromFile(path, &ofile);
+ unsigned dyld_result = NSCreateObjectFileImageFromFile(path, &ofile);
if ( dyld_result != NSObjectFileImageSuccess )
{
handle = NULL;
+
+ static const char *errorStrings[] =
+ {
+ "%d: Object Image Load Failure",
+ "%d: Object Image Load Success",
+ "%d: Not an recognisable object file",
+ "%d: No valid architecture",
+ "%d: Object image has an invalid format",
+ "%d: Invalid access (permissions?)",
+ "%d: Unknown error code from NSCreateObjectFileImageFromFile"
+ };
+
+ const int index = dyld_result < WXSIZEOF(errorStrings)
+ ? dyld_result
+ : WXSIZEOF(errorStrings) - 1;
+
+ // this call to sprintf() is safe as strings above are fixed at
+ // compile-time and are shorter than WXSIZEOF(dl_last_error)
+ sprintf(dl_last_error, errorStrings[index], dyld_result);
}
else
{
NSLINKMODULE_OPTION_BINDNOW |
NSLINKMODULE_OPTION_RETURN_ON_ERROR
);
+
+ if ( !handle )
+ {
+ NSLinkEditErrors err;
+ int code;
+ const char *filename;
+ const char *errmsg;
+
+ NSLinkEditError(&err, &code, &filename, &errmsg);
+ strncpy(dl_last_error, errmsg, WXSIZEOF(dl_last_error)-1);
+ dl_last_error[WXSIZEOF(dl_last_error)-1] = '\0';
+ }
}
- if ( !handle )
- TranslateError(path, dyld_result);
return handle;
}
int dlclose(void *handle)
{
- NSUnLinkModule( handle, NSUNLINKMODULE_OPTION_NONE);
+ NSUnLinkModule((NSModule)handle, NSUNLINKMODULE_OPTION_NONE);
return 0;
}
p[0] = '_';
strcpy(p + 1, symbol);
- NSSymbol nsSymbol = NSLookupSymbolInModule( handle, p );
+ NSSymbol nsSymbol = NSLookupSymbolInModule((NSModule)handle, p );
return nsSymbol ? NSAddressOfSymbol(nsSymbol) : NULL;
}
/* static */
wxDllType wxDynamicLibrary::RawLoad(const wxString& libname, int flags)
{
- wxASSERT_MSG( (flags & wxDL_NOW) == 0,
+ wxASSERT_MSG( !(flags & wxDL_NOW) || !(flags & wxDL_LAZY),
_T("wxDL_LAZY and wxDL_NOW are mutually exclusive.") );
#ifdef USE_POSIX_DL_FUNCS
- int rtldFlags = 0;
+ // we need to use either RTLD_NOW or RTLD_LAZY because if we call dlopen()
+ // with flags == 0 recent versions of glibc just fail the call, so use
+ // RTLD_NOW even if wxDL_NOW was not specified
+ int rtldFlags = flags & wxDL_LAZY ? RTLD_LAZY : RTLD_NOW;
-#ifdef RTLD_LAZY
- if ( flags & wxDL_LAZY )
- {
- rtldFlags |= RTLD_LAZY;
- }
-#endif
-#ifdef RTLD_NOW
- if ( flags & wxDL_NOW )
- {
- rtldFlags |= RTLD_NOW;
- }
-#endif
-#ifdef RTLD_GLOBAL
if ( flags & wxDL_GLOBAL )
- {
rtldFlags |= RTLD_GLOBAL;
- }
-#endif
return dlopen(libname.fn_str(), rtldFlags);
#else // !USE_POSIX_DL_FUNCS
/* static */
void wxDynamicLibrary::Error()
{
-#if wxUSE_UNICODE
- wxWCharBuffer buffer = wxConvLocal.cMB2WC( dlerror() );
- const wxChar *err = buffer;
-#else
- const wxChar *err = dlerror();
-#endif
+ wxString err(dlerror());
- wxLogError(wxT("%s"), err ? err : _("Unknown dynamic library error"));
+ if ( err.empty() )
+ err = _("Unknown dynamic library error");
+
+ wxLogError(wxT("%s"), err);
}
#endif // wxHAVE_DYNLIB_ERROR
public:
// create a new wxDynamicLibraryDetails from the given data
static wxDynamicLibraryDetails *
- New(unsigned long start, unsigned long end, const wxString& path)
+ New(void *start, void *end, const wxString& path)
{
wxDynamicLibraryDetails *details = new wxDynamicLibraryDetails;
details->m_path = path;
details->m_name = path.AfterLast(_T('/'));
- details->m_address = wx_reinterpret_cast(void *, start);
- details->m_length = end - start;
+ details->m_address = start;
+ details->m_length = (char *)end - (char *)start;
// try to extract the library version from its name
const size_t posExt = path.rfind(_T(".so"));
#ifdef __LINUX__
// examine /proc/self/maps to find out what is loaded in our address space
- wxFFile file("/proc/self/maps");
+ wxFFile file(_T("/proc/self/maps"));
if ( file.IsOpened() )
{
// details of the module currently being parsed
wxString pathCur;
- unsigned long startCur,
- endCur;
+ void *startCur = NULL,
+ *endCur = NULL;
char path[1024];
char buf[1024];
while ( fgets(buf, WXSIZEOF(buf), file.fp()) )
{
- // format is: start-end perm something? maj:min inode path
- unsigned long start, end;
- switch ( sscanf(buf, "%08lx-%08lx %*4s %*08x %*02d:%*02d %*d %1024s\n",
+ // format is: "start-end perm offset maj:min inode path", see proc(5)
+ void *start,
+ *end;
+ switch ( sscanf(buf, "%p-%p %*4s %*p %*02x:%*02x %*d %1024s\n",
&start, &end, path) )
{
case 2:
continue;
}
+ wxASSERT_MSG( start >= endCur,
+ _T("overlapping regions in /proc/self/maps?") );
+
wxString pathNew = wxString::FromAscii(path);
if ( pathCur.empty() )
{
startCur = start;
endCur = end;
}
- else if ( pathCur == pathNew )
+ else if ( pathCur == pathNew && endCur == end )
{
- // continuation of the same module
- wxASSERT_MSG( start == endCur, _T("hole in /proc/self/maps?") );
+ // continuation of the same module in the address space
endCur = end;
}
else // end of the current module
projects / wxWidgets.git / blobdiff