[hlcoders] Round 2: srcds on newer linuxes
I've updated the KI list with the code issues that prevent compiling on gcc 4: http://developer.valvesoftware.com/wiki/SDK_Known_Issues_List#Mod_fails_to_compile_with_gcc_4.x Unfortunately there are now run-time issues. The first big issue is that every time you respawn, your vision is stuck very close to the ground. This seems to be very similar to the long-standing #15 Deeper Underground HL2DM bug as listed on the http://forums.steampowered.com/forums/showthread.php?s=threadid=248425 HL2DM bug list page, however it occurs every time. Crouching and uncrouching fixes the issue. Has anyone else seen this? I may try reverting to gcc3.x... ___ To unsubscribe, edit your list preferences, or view the list archives, please visit: http://list.valvesoftware.com/mailman/listinfo/hlcoders
RE: [hlcoders] Round 2: srcds on newer linuxes
I've updated http://developer.valvesoftware.com/wiki/Compiling_under_Linux to mention that gcc 4.x will not work. However this behavior is surprising as I've extensively used cross-gcc version libraries before, due to the need to interface with third party products on old OSes. Generally you should be able to load a library with a new gcc as long as both libraries link to the correct runtimes dynamically. For instance http://gcc.gnu.org/onlinedocs/libstdc++/abi.html#ABI_multi_testing contains an example of essentially the exact scenario that I attempted, and it should work. My current suspicion is that gcc 4 is generating code that is invalid, possibly due to a gcc bug, or possibly due to the code containing undefined behavior, which gcc 4 interprets differently than gcc 3 did. Unfortunately due to the necessity low warning levels it's hard to say which it might be. In any case I've reverted to gcc 3.4.4 and both issues have gone away. At 2006/06/11 06:17 PM, Alfred Reynolds wrote: The C++ ABI implemented in GCC 4.x differs significantly from 3.x, I am amazed the binary even loads. You will need to use the 3.x series of GCC to compile your mod. - Alfred [EMAIL PROTECTED] wrote: I've updated the KI list with the code issues that prevent compiling on gcc 4: http://developer.valvesoftware.com/wiki/SDK_Known_Issues_List#Mod_fails_ to_compile_with_gcc_4.x Unfortunately there are now run-time issues. The first big issue is that every time you respawn, your vision is stuck very close to the ground. This seems to be very similar to the long-standing #15 Deeper Underground HL2DM bug as listed on the http://forums.steampowered.com/forums/showthread.php?s=threadid=248425 HL2DM bug list page, however it occurs every time. Crouching and uncrouching fixes the issue. Has anyone else seen this? I may try reverting to gcc3.x... ___ To unsubscribe, edit your list preferences, or view the list archives, please visit: http://list.valvesoftware.com/mailman/listinfo/hlcoders ___ To unsubscribe, edit your list preferences, or view the list archives, please visit: http://list.valvesoftware.com/mailman/listinfo/hlcoders ___ To unsubscribe, edit your list preferences, or view the list archives, please visit: http://list.valvesoftware.com/mailman/listinfo/hlcoders
RE: [hlcoders] Round 2: srcds on newer linuxes
Libraries under Linux make use of C bindings, their binary format is static and well defined. The Source engine makes use of C++ entities between its shared libraries (in particular pure virtual interfaces), the C++ ABI is NOT stable between GCC major versions. A quick google of this will give you plenty of details. - Alfred [EMAIL PROTECTED] wrote: I've updated http://developer.valvesoftware.com/wiki/Compiling_under_Linux to mention that gcc 4.x will not work. However this behavior is surprising as I've extensively used cross-gcc version libraries before, due to the need to interface with third party products on old OSes. Generally you should be able to load a library with a new gcc as long as both libraries link to the correct runtimes dynamically. For instance http://gcc.gnu.org/onlinedocs/libstdc++/abi.html#ABI_multi_testing contains an example of essentially the exact scenario that I attempted, and it should work. My current suspicion is that gcc 4 is generating code that is invalid, possibly due to a gcc bug, or possibly due to the code containing undefined behavior, which gcc 4 interprets differently than gcc 3 did. Unfortunately due to the necessity low warning levels it's hard to say which it might be. In any case I've reverted to gcc 3.4.4 and both issues have gone away. At 2006/06/11 06:17 PM, Alfred Reynolds wrote: The C++ ABI implemented in GCC 4.x differs significantly from 3.x, I am amazed the binary even loads. You will need to use the 3.x series of GCC to compile your mod. - Alfred [EMAIL PROTECTED] wrote: I've updated the KI list with the code issues that prevent compiling on gcc 4: http://developer.valvesoftware.com/wiki/SDK_Known_Issues_List#Mod_fails_ to_compile_with_gcc_4.x Unfortunately there are now run-time issues. The first big issue is that every time you respawn, your vision is stuck very close to the ground. This seems to be very similar to the long-standing #15 Deeper Underground HL2DM bug as listed on the http://forums.steampowered.com/forums/showthread.php?s=threadid=248425 HL2DM bug list page, however it occurs every time. Crouching and uncrouching fixes the issue. Has anyone else seen this? I may try reverting to gcc3.x... ___ To unsubscribe, edit your list preferences, or view the list archives, please visit: http://list.valvesoftware.com/mailman/listinfo/hlcoders ___ To unsubscribe, edit your list preferences, or view the list archives, please visit: http://list.valvesoftware.com/mailman/listinfo/hlcoders ___ To unsubscribe, edit your list preferences, or view the list archives, please visit: http://list.valvesoftware.com/mailman/listinfo/hlcoders ___ To unsubscribe, edit your list preferences, or view the list archives, please visit: http://list.valvesoftware.com/mailman/listinfo/hlcoders
RE: [hlcoders] Round 2: srcds on newer linuxes
Thanks for the tips! I'd forgotten that fact about the Source SDK, although I'd actually discovered it once before when trying to run efence on a mod in order to try to debug Physical Mayhem. Quite frankly I'm still baffled as to how it resulted in the behavior it did, but oh well I've got bigger fish to try. :) I've strengthened the messaging on: http://developer.valvesoftware.com/wiki/Compiling_under_Linux#Requirements At 2006/06/11 08:23 PM, Alfred Reynolds wrote: Libraries under Linux make use of C bindings, their binary format is static and well defined. The Source engine makes use of C++ entities between its shared libraries (in particular pure virtual interfaces), the C++ ABI is NOT stable between GCC major versions. A quick google of this will give you plenty of details. - Alfred [EMAIL PROTECTED] wrote: I've updated http://developer.valvesoftware.com/wiki/Compiling_under_Linux to mention that gcc 4.x will not work. However this behavior is surprising as I've extensively used cross-gcc version libraries before, due to the need to interface with third party products on old OSes. Generally you should be able to load a library with a new gcc as long as both libraries link to the correct runtimes dynamically. For instance http://gcc.gnu.org/onlinedocs/libstdc++/abi.html#ABI_multi_testing contains an example of essentially the exact scenario that I attempted, and it should work. My current suspicion is that gcc 4 is generating code that is invalid, possibly due to a gcc bug, or possibly due to the code containing undefined behavior, which gcc 4 interprets differently than gcc 3 did. Unfortunately due to the necessity low warning levels it's hard to say which it might be. In any case I've reverted to gcc 3.4.4 and both issues have gone away. At 2006/06/11 06:17 PM, Alfred Reynolds wrote: The C++ ABI implemented in GCC 4.x differs significantly from 3.x, I am amazed the binary even loads. You will need to use the 3.x series of GCC to compile your mod. - Alfred [EMAIL PROTECTED] wrote: I've updated the KI list with the code issues that prevent compiling on gcc 4: http://developer.valvesoftware.com/wiki/SDK_Known_Issues_List#Mod_fails_ to_compile_with_gcc_4.x Unfortunately there are now run-time issues. The first big issue is that every time you respawn, your vision is stuck very close to the ground. This seems to be very similar to the long-standing #15 Deeper Underground HL2DM bug as listed on the http://forums.steampowered.com/forums/showthread.php?s=threadid=248425 HL2DM bug list page, however it occurs every time. Crouching and uncrouching fixes the issue. Has anyone else seen this? I may try reverting to gcc3.x... ___ To unsubscribe, edit your list preferences, or view the list archives, please visit: http://list.valvesoftware.com/mailman/listinfo/hlcoders ___ To unsubscribe, edit your list preferences, or view the list archives, please visit: http://list.valvesoftware.com/mailman/listinfo/hlcoders ___ To unsubscribe, edit your list preferences, or view the list archives, please visit: http://list.valvesoftware.com/mailman/listinfo/hlcoders ___ To unsubscribe, edit your list preferences, or view the list archives, please visit: http://list.valvesoftware.com/mailman/listinfo/hlcoders ___ To unsubscribe, edit your list preferences, or view the list archives, please visit: http://list.valvesoftware.com/mailman/listinfo/hlcoders
