14974 2007-08-15 11:07:16 -0700 Build failure on PPC Linux 2007-10-23 08:36:30 -0700 1 1 1 Unclassified WebKit JavaScriptCore 523.x (Safari 3) Mac (PowerPC) Linux RESOLVED DUPLICATE 14521 P2 Normal --- 0 mh+webkit webkit-unassigned ddkilzer mrowe oldest_to_newest 2237 0 mh+webkit 2007-08-15 11:07:16 -0700 The assembly in JavaScriptCore/wtf/TCSpinLock.h fails to build on PPC with the following error message: g++ -c -g -O2 -Wall -D_REENTRANT -I/usr/include -g -Wall -W -DQT_SHARED -DBUILDING_GDK__ -I/usr/share/qt4/mkspecs/linux-g++ -I../../../JavaScriptCore/kjs -I../../../JavaScriptCore -I../../../JavaScriptCore/kjs -I../../../JavaScriptCore/bindings -I../../../JavaScriptCore/bindings/c -I../../../JavaScriptCore/wtf -Itmp -I../../../JavaScriptCore -I../../../JavaScriptCore/kjs -I../../../JavaScriptCore/bindings -I../../../JavaScriptCore/bindings/c -I../../../JavaScriptCore/wtf -I../../../JavaScriptCore/pcre -Itmp -I../../../JavaScriptCore/kjs -I. -o TCSystemAlloc.o ../../../JavaScriptCore/wtf/TCSystemAlloc.cpp ../../../JavaScriptCore/wtf/TCSpinLock.h: In function 'void* TCMalloc_SystemAlloc(size_t, size_t)': ../../../JavaScriptCore/wtf/TCSpinLock.h:98: error: 'asm' operand requires impossible reload The toolchain in use is : gcc 4.1.3 20070812 (prerelease) (Debian 4.1.2-15) glibc 2.6.1 and binutils 2.17cvs20070804 2187 1 mrowe 2007-08-16 01:37:15 -0700 Patches are welcome. The code in TCSpinLock.h compiles under GCC 4.0 on PowerPC Mac OS X. A simple workaround would be to use the pthread version of TCMalloc_SpinLock rather than the custom assembly version. 2157 2 mh+webkit 2007-08-16 12:01:55 -0700 After further investigation, it is likely a regression in g++. It builds with -O0, and builds at -O2 with g++-4.0. Maybe you should give a try building with g++-4.1 or 4.2 on OSX, it may also fail. 2120 3 mrowe 2007-08-16 20:21:09 -0700 Mac OS X only ships with GCC 4.0.1. Mainline GCC does not support many of the features that Apple has added and which are possibly used by the Mac port, so it is not particularly easy to test with other versions. 59252 4 ddkilzer 2007-10-23 08:36:30 -0700 *** This bug has been marked as a duplicate of 14521 ***