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- Fixed: Modern versions of GCC on PowerPC inserted padding to the end of pragma packed structures.

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- Worked aorund modern GCC bug where C++ exceptions in Objective-C++ code would result in an ICE (bug is already on their tracker, but I doubt it will be fixed unless I decide to dig into the issue myself).
- Turn off fused floating point instructions since these can cause slight deviations in floating point code.
- Use -static-libgcc when compiling on the Mac with GCC since we need to use a custom version of GCC to do so now.
- Note: ZDoom will currently still crash on exit on PowerPC since it seems to be deciding that NameManager needs to be destructed before the console commands.
This commit is contained in:
Braden Obrzut 2016-03-13 00:34:35 -05:00
parent 0269aeea80
commit 93be5aca05
10 changed files with 125 additions and 71 deletions
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7
CMakeLists.txt
View file

@ -167,6 +167,11 @@ else()
set( ALL_C_FLAGS "" )
set( REL_C_FLAGS "" )
set( DEB_C_FLAGS "" )
# If we're compiling with a custom GCC on the Mac (which we know since g++-4.2 doesn't support C++11) statically link libgcc.
if( APPLE AND "${CMAKE_C_COMPILER_ID}" STREQUAL "GNU" )
set( ALL_C_FLAGS "-static-libgcc" )
endif()
endif()
set( CMAKE_EXE_LINKER_FLAGS_RELEASE "${CMAKE_EXE_LINKER_FLAGS_RELEASE} ${REL_LINKER_FLAGS}" )
@ -193,7 +198,7 @@ option(FORCE_INTERNAL_GME "Use internal gme" ON)
# Fast math flags, required by some subprojects
set( ZD_FASTMATH_FLAG "" )
if( ZD_CMAKE_COMPILER_IS_GNUCXX_COMPATIBLE )
set( ZD_FASTMATH_FLAG "-ffast-math" )
set( ZD_FASTMATH_FLAG "-ffast-math -ffp-contract=fast" )
elseif( MSVC )
set( ZD_FASTMATH_FLAG "/fp:fast" )
endif()

22
src/CMakeLists.txt
View file

@ -465,28 +465,28 @@ if( ZD_CMAKE_COMPILER_IS_GNUCXX_COMPATIBLE )
set( CMAKE_C_FLAGS "-Wno-unused-result ${CMAKE_C_FLAGS}" )
set( CMAKE_CXX_FLAGS "-Wno-unused-result ${CMAKE_CXX_FLAGS}" )
endif()
set( CMAKE_C_FLAGS "-Wall -Wextra -Wno-unused -Wno-unused-parameter -Wno-missing-field-initializers ${CMAKE_C_FLAGS}" )
set( CMAKE_CXX_FLAGS "-Wall -Wextra -Wno-unused -Wno-unused-parameter -Wno-missing-field-initializers ${CMAKE_CXX_FLAGS}" )
set( CMAKE_C_FLAGS "-Wall -Wextra -Wno-unused -Wno-unused-parameter -Wno-missing-field-initializers -ffp-contract=off ${CMAKE_C_FLAGS}" )
set( CMAKE_CXX_FLAGS "-Wall -Wextra -Wno-unused -Wno-unused-parameter -Wno-missing-field-initializers -ffp-contract=off ${CMAKE_CXX_FLAGS}" )
# Use the highest C++ standard available since VS2015 compiles with C++14
# but we only require C++11. The recommended way to do this in CMake is to
# probably to use target_compile_features, but I don't feel like maintaining
# a list of features we use.
CHECK_CXX_COMPILER_FLAG( "-std=c++14" CAN_DO_CPP14 )
CHECK_CXX_COMPILER_FLAG( "-std=gnu++14" CAN_DO_CPP14 )
if ( CAN_DO_CPP14 )
set ( CMAKE_CXX_FLAGS "-std=c++14 ${CMAKE_CXX_FLAGS}" )
set ( CMAKE_CXX_FLAGS "-std=gnu++14 ${CMAKE_CXX_FLAGS}" )
else ()
CHECK_CXX_COMPILER_FLAG( "-std=c++1y" CAN_DO_CPP1Y )
CHECK_CXX_COMPILER_FLAG( "-std=gnu++1y" CAN_DO_CPP1Y )
if ( CAN_DO_CPP1Y )
set ( CMAKE_CXX_FLAGS "-std=c++1y ${CMAKE_CXX_FLAGS}" )
set ( CMAKE_CXX_FLAGS "-std=gnu++1y ${CMAKE_CXX_FLAGS}" )
else ()
CHECK_CXX_COMPILER_FLAG( "-std=c++11" CAN_DO_CPP11 )
CHECK_CXX_COMPILER_FLAG( "-std=gnu++11" CAN_DO_CPP11 )
if ( CAN_DO_CPP11 )
set ( CMAKE_CXX_FLAGS "-std=c++11 ${CMAKE_CXX_FLAGS}" )
set ( CMAKE_CXX_FLAGS "-std=gnu++11 ${CMAKE_CXX_FLAGS}" )
else ()
CHECK_CXX_COMPILER_FLAG( "-std=c++0x" CAN_DO_CPP0X )
CHECK_CXX_COMPILER_FLAG( "-std=gnu++0x" CAN_DO_CPP0X )
if ( CAN_DO_CPP0X )
set ( CMAKE_CXX_FLAGS "-std=c++0x ${CMAKE_CXX_FLAGS}" )
set ( CMAKE_CXX_FLAGS "-std=gnu++0x ${CMAKE_CXX_FLAGS}" )
endif ()
endif ()
endif ()
@ -645,6 +645,7 @@ set( PLAT_COCOA_SOURCES
posix/cocoa/i_input.mm
posix/cocoa/i_joystick.cpp
posix/cocoa/i_main.mm
posix/cocoa/i_main_except.cpp
posix/cocoa/i_system.mm
posix/cocoa/i_timer.cpp
posix/cocoa/i_video.mm
@ -681,6 +682,7 @@ elseif( APPLE )
set_source_files_properties( posix/osx/zdoom.icns PROPERTIES MACOSX_PACKAGE_LOCATION Resources )
set_source_files_properties( "${FMOD_LIBRARY}" PROPERTIES MACOSX_PACKAGE_LOCATION Frameworks )
set_source_files_properties( posix/osx/iwadpicker_cocoa.mm PROPERTIES COMPILE_FLAGS -fobjc-exceptions )
else()
set( SYSTEM_SOURCES_DIR posix posix/sdl )
set( SYSTEM_SOURCES ${PLAT_POSIX_SOURCES} ${PLAT_SDL_SOURCES} )

12
src/doomtype.h
View file

@ -123,6 +123,18 @@ typedef TMap<int, PClassActor *> FClassMap;
#define NO_SANITIZE
#endif
#if defined(__GNUC__)
// With versions of GCC newer than 4.2, it appears it was determined that the
// cost of an unaligned pointer on PPC was high enough to add padding to the
// end of packed structs. For whatever reason __packed__ and pragma pack are
// handled differently in this regard. Note that this only needs to be applied
// to types which are used in arrays or sizeof is needed. This also prevents
// code from taking references to the struct members.
#define FORCE_PACKED __attribute__((__packed__))
#else
#define FORCE_PACKED
#endif
#include "basictypes.h"
extern bool batchrun;

2
src/posix/cocoa/i_common.h
View file

@ -149,6 +149,8 @@ static const NSOpenGLPixelFormatAttribute NSOpenGLPFAAllowOfflineRenderers = NSO
- (void)setCollectionBehavior:(NSUInteger)collectionBehavior;
@end
typedef NSUInteger NSWindowCollectionBehavior;
#endif // prior to 10.5

110
src/posix/cocoa/i_main.mm
View file

@ -67,7 +67,6 @@ EXTERN_CVAR(Bool, fullscreen )
// ---------------------------------------------------------------------------
namespace
{
@ -78,6 +77,9 @@ void (*TermFuncs[MAX_TERMS])();
const char *TermNames[MAX_TERMS];
size_t NumTerms;
} // unnamed namespace
// Expose this for i_main_except.cpp
void call_terms()
{
while (NumTerms > 0)
@ -86,8 +88,6 @@ void call_terms()
}
}
} // unnamed namespace
void addterm(void (*func)(), const char *name)
{
@ -133,49 +133,12 @@ void Mac_I_FatalError(const char* const message)
DArgs* Args; // command line arguments
namespace
// Newer versions of GCC than 4.2 have a bug with C++ exceptions in Objective-C++ code.
// To work around we'll implement the try and catch in standard C++.
// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61759
void OriginalMainExcept(int argc, char** argv);
void OriginalMainTry(int argc, char** argv)
{
const int ARGC_MAX = 64;
int s_argc;
char* s_argv[ARGC_MAX];
TArray<FString> s_argvStorage;
bool s_restartedFromWADPicker;
void NewFailure()
{
I_FatalError("Failed to allocate memory from system heap");
}
int OriginalMain(int argc, char** argv)
{
printf(GAMENAME" %s - %s - Cocoa version\nCompiled on %s\n\n",
GetVersionString(), GetGitTime(), __DATE__);
seteuid(getuid());
std::set_new_handler(NewFailure);
// Set LC_NUMERIC environment variable in case some library decides to
// clear the setlocale call at least this will be correct.
// Note that the LANG environment variable is overridden by LC_*
setenv("LC_NUMERIC", "C", 1);
setlocale(LC_ALL, "C");
// Set reasonable default values for video settings
const NSSize screenSize = [[NSScreen mainScreen] frame].size;
vid_defwidth = static_cast<int>(screenSize.width);
vid_defheight = static_cast<int>(screenSize.height);
vid_vsync = true;
fullscreen = true;
try
{
Args = new DArgs(argc, argv);
/*
@ -203,24 +166,49 @@ int OriginalMain(int argc, char** argv)
C_InitConsole(80 * 8, 25 * 8, false);
D_DoomMain();
}
catch(const CDoomError& error)
{
const char* const message = error.GetMessage();
}
if (NULL != message)
{
fprintf(stderr, "%s\n", message);
Mac_I_FatalError(message);
}
namespace
{
exit(-1);
}
catch(...)
{
call_terms();
throw;
}
const int ARGC_MAX = 64;
int s_argc;
char* s_argv[ARGC_MAX];
TArray<FString> s_argvStorage;
bool s_restartedFromWADPicker;
void NewFailure()
{
I_FatalError("Failed to allocate memory from system heap");
}
int OriginalMain(int argc, char** argv)
{
printf(GAMENAME" %s - %s - Cocoa version\nCompiled on %s\n\n",
GetVersionString(), GetGitTime(), __DATE__);
seteuid(getuid());
std::set_new_handler(NewFailure);
// Set LC_NUMERIC environment variable in case some library decides to
// clear the setlocale call at least this will be correct.
// Note that the LANG environment variable is overridden by LC_*
setenv("LC_NUMERIC", "C", 1);
setlocale(LC_ALL, "C");
// Set reasonable default values for video settings
const NSSize screenSize = [[NSScreen mainScreen] frame].size;
vid_defwidth = static_cast<int>(screenSize.width);
vid_defheight = static_cast<int>(screenSize.height);
vid_vsync = true;
fullscreen = true;
OriginalMainExcept(argc, argv);
return 0;
}

34
src/posix/cocoa/i_main_except.cpp Normal file
View file

@ -0,0 +1,34 @@
// Workaround for GCC Objective-C++ with C++ exceptions bug.
#include "doomerrors.h"
#include <stdlib.h>
// Import some functions from i_main.mm
void call_terms();
void Mac_I_FatalError(const char* const message);
void OriginalMainTry(int argc, char** argv);
void OriginalMainExcept(int argc, char** argv)
{
try
{
OriginalMainTry(argc, argv);
}
catch(const CDoomError& error)
{
const char* const message = error.GetMessage();
if (NULL != message)
{
fprintf(stderr, "%s\n", message);
Mac_I_FatalError(message);
}
exit(-1);
}
catch(...)
{
call_terms();
throw;
}
}

4
src/sound/music_dumb.cpp
View file

@ -100,14 +100,14 @@ typedef struct tagITFILEHEADER
DWORD reserved2;
BYTE chnpan[64];
BYTE chnvol[64];
} ITFILEHEADER, *PITFILEHEADER;
} FORCE_PACKED ITFILEHEADER, *PITFILEHEADER;
typedef struct MODMIDICFG
{
char szMidiGlb[9*32]; // changed from CHAR
char szMidiSFXExt[16*32]; // changed from CHAR
char szMidiZXXExt[128*32]; // changed from CHAR
} MODMIDICFG, *LPMODMIDICFG;
} FORCE_PACKED MODMIDICFG, *LPMODMIDICFG;
#pragma pack()

2
src/textures/pcxtexture.cpp
View file

@ -72,7 +72,7 @@ struct PCXHeader
BYTE padding[54];
};
} FORCE_PACKED;
#pragma pack()
//==========================================================================

6
src/w_zip.h
View file

@ -13,7 +13,7 @@ struct FZipEndOfCentralDirectory
DWORD DirectorySize;
DWORD DirectoryOffset;
WORD ZipCommentLength;
};
} FORCE_PACKED;
// FZipFileInfo
struct FZipCentralDirectoryInfo
@ -36,7 +36,7 @@ struct FZipCentralDirectoryInfo
DWORD ExternalAttributes;
DWORD LocalHeaderOffset;
// file name and other variable length info follows
};
} FORCE_PACKED;
// FZipLocalHeader
struct FZipLocalFileHeader
@ -53,7 +53,7 @@ struct FZipLocalFileHeader
WORD NameLength;
WORD ExtraLength;
// file name and other variable length info follows
};
} FORCE_PACKED;
#pragma pack()

17
tools/zipdir/zipdir.c
View file

@ -60,6 +60,17 @@
#define __cdecl
#endif
#ifdef __GNUC__
// With versions of GCC newer than 4.2, it appears it was determined that the
// cost of an unaligned pointer on PPC was high enough to add padding to the
// end of packed structs. For whatever reason __packed__ and pragma pack are
// handled differently in this regard. Note that this only needs to be applied
// to types which are used in arrays.
#define FORCE_PACKED __attribute__((__packed__))
#else
#define FORCE_PACKED
#endif
#ifndef __BIG_ENDIAN__
#define MAKE_ID(a,b,c,d) ((a)|((b)<<8)|((c)<<16)|((d)<<24))
#define LittleShort(x) (x)
@ -150,7 +161,7 @@ typedef struct
UINT32 UncompressedSize; // 22
WORD NameLength; // 26
WORD ExtraLength; // 28
} LocalFileHeader;
} FORCE_PACKED LocalFileHeader;
typedef struct
{
@ -171,7 +182,7 @@ typedef struct
WORD InternalAttributes;
UINT32 ExternalAttributes;
UINT32 LocalHeaderOffset;
} CentralDirectoryEntry;
} FORCE_PACKED CentralDirectoryEntry;
typedef struct
{
@ -183,7 +194,7 @@ typedef struct
UINT32 DirectorySize;
UINT32 DirectoryOffset;
WORD ZipCommentLength;
} EndOfCentralDirectory;
} FORCE_PACKED EndOfCentralDirectory;
//#pragma pack(pop)
// EXTERNAL FUNCTION PROTOTYPES --------------------------------------------