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Fix a crash in some languages when loading a dynamic library. 

The crash is inside wxDynamicLibrary::Load() when loading Eeschema,
and hard to find on Windows (gdb shows nothing).
Perhaps due to some issue with a specific string.

The fix is to switch to "C" locale with LC_COLLATE option to load the dll.

Fixes: lp:1853681
https://bugs.launchpad.net/kicad/+bug/1853681
This commit is contained in:
jean-pierre charras 2019-11-24 11:56:02 +01:00
parent 44a6a61ff9
commit a6566b9b53
1 changed files with 16 additions and 4 deletions
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20
common/kiway.cpp
View File

@ -201,7 +201,19 @@ KIFACE* KIWAY::KiFACE( FACE_T aFaceId, bool doLoad )
void* addr = NULL;
if( !dso.Load( dname, wxDL_VERBATIM | wxDL_NOW | wxDL_GLOBAL ) )
// For some reason wxDynamicLibrary::Load() crashes in some languages
// (chinese for instance) when loading the dynamic library.
// The crash happens for Eeschema.
// So switch to "C" locale during loading (LC_COLLATE is enough).
int lc_new_type = LC_COLLATE;
std::string user_locale = setlocale( lc_new_type, nullptr );
setlocale( lc_new_type, "C" );
bool success = dso.Load( dname, wxDL_VERBATIM | wxDL_NOW | wxDL_GLOBAL );
setlocale( lc_new_type, user_locale.c_str() );
if( !success )
{
// Failure: error reporting UI was done via wxLogSysError().
// No further reporting required here. Apparently this is not true on all
@ -209,7 +221,7 @@ KIFACE* KIWAY::KiFACE( FACE_T aFaceId, bool doLoad )
// here and catching it in the KiCad launcher resolves the crash issue. See bug
// report https://bugs.launchpad.net/kicad/+bug/1577786.
msg.Printf( _( "Failed to load kiface library \"%s\"." ), GetChars( dname ) );
msg.Printf( _( "Failed to load kiface library \"%s\"." ), dname );
THROW_IO_ERROR( msg );
}
else if( ( addr = dso.GetSymbol( wxT( KIFACE_INSTANCE_NAME_AND_VERSION ) ) ) == NULL )
@ -219,7 +231,7 @@ KIFACE* KIWAY::KiFACE( FACE_T aFaceId, bool doLoad )
// above with the Load() call. This has not been tested.
msg.Printf(
_( "Could not read instance name and version symbol form kiface library \"%s\"." ),
GetChars( dname ) );
dname );
THROW_IO_ERROR( msg );
}
else
@ -253,7 +265,7 @@ KIFACE* KIWAY::KiFACE( FACE_T aFaceId, bool doLoad )
msg = wxString::Format( _(
"Fatal Installation Bug. File:\n"
"\"%s\"\ncould not be loaded\n" ), GetChars( dname ) );
"\"%s\"\ncould not be loaded\n" ), dname );
if( ! wxFileExists( dname ) )
msg << _( "It is missing.\n" );