After recent fixes, the only patch left to be able to build Ada on mainline is for the wrapv problems http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21959 (patch by Andreas Schwab). It works at least on x86 and x86_64-linux:
http://gcc.gnu.org/ml/gcc-testresults/2005-06/msg01590.html http://gcc.gnu.org/ml/gcc-testresults/2005-06/msg01592.html The Ada PR has a small test case in C showing the problem, by Andrew Pinski: unsigned char c[0xFF]; void f(void) { unsigned char i; c[128] = 128; i = 0; while (1) { if (((signed char) i) < 0) break; c[i] = ' '; i++; } } If no one is looking at this, may be it's better to just commit the workaround patch? Laurent Index: misc.c =================================================================== RCS file: /cvs/gcc/gcc/gcc/ada/misc.c,v retrieving revision 1.103 diff -u -r1.103 misc.c --- misc.c 16 Jun 2005 09:05:06 -0000 1.103 +++ misc.c 26 Jun 2005 20:30:01 -0000 @@ -339,6 +339,8 @@ /* Uninitialized really means uninitialized in Ada. */ flag_zero_initialized_in_bss = 0; + flag_wrapv = 1; + return CL_Ada; }
