Created attachment 59315 [details]
valgrind log

Created attachment 59316 [details]
valgrind log

hmm, we can patch out the ppc support of valgrind if the arch team has no resources to fix it

no, we want ppc support. I've asked Andreas to create this bugreport. 

http://publibn.boulder.ibm.com/doc_link/en_US/a_doc_lib/aixassem/alangref/lfsu.htm

lfsu    f5,-4(r11)

it seems there was already an attempt to support this instruction: 

VEX/priv/guest-ppc32/toIR.c: 

//zz    case 0x31: // lfsu (Load Float Single with Update, PPC32 p442)
//zz       if (rA_addr == 0) {
//zz          vex_printf("dis_fp_load(PPC32)(instr,lfsu)\n");
//zz          return False;
//zz       }
//zz       DIP("lfsu fr%u,%d(r%u)\n", frD_addr, simm16, rA_addr);
//zz       assign( EA, ea_rA_simm(rA_addr, simm16) );
//zz       putFReg( frD_addr, unop(Iop_F32toF64, loadBE(Ity_F32, mkexpr(EA))) );
//zz       putIReg( rA_addr, mkexpr(EA) );
//zz       break;

Andreas, can you try with commenting in this? 

Also, use --workaround-gcc296-bugs=yes. for some reason our compiler seems to write below the stack, thats a different bug we have to fix. 

http://bugs.kde.org/show_bug.cgi?id=117419

dis_fp_arith(PPC32)(3F: opc2)
disInstr(ppc32): unhandled instruction: 0xFDA0082C
                 primary 63(0x3F), secondary 44(0x2C)

Created attachment 59625 [details]
valgrind log

hmm, thats fsqrt. unsure if its 64bit or 32bit. guessing 64bit. 

Created attachment 59645 [details]
patch

try this patch.

Created attachment 59764 [details]
fsqrt.diff

Created attachment 59793 [details]
implement clock_getres

m_syswrap/syswrap-ppc32-linux.c:1748: error: '__NR_clock_getres' undeclared here (not in a function)

ok, 

--- coregrind/vki_unistd-ppc32-linux.h  (revision 5283)
+++ coregrind/vki_unistd-ppc32-linux.h  (working copy)
@@ -276,7 +276,7 @@
 //#define __NR_timer_delete            244
 //#define __NR_clock_settime           245
 #define __NR_clock_gettime             246
-//#define __NR_clock_getres            247
+#define __NR_clock_getres              247
 //#define __NR_clock_nanosleep         248
 //#define __NR_swapcontext             249
 #define __NR_tgkill                    250

Created attachment 59869 [details]
Missing syscalls

thanks, committed to upstream

everything upstream, package updated.