Hi > On gcc 3.3.x --with-float=soft does nothing. If you are using a MIPS32 > ISA processor you can configure it with --target=mipsisa32[el]-linux to > get soft float and MIPS32 ISA by default. O.K. Thank you for the explanation. > But even better would be to use gcc 3.4.x or 4.0.x where > --with-float=soft works. I would also recommend binutils 2.16.1 or > above as there are some severe bugs in the mips linker in earlier versions. O.K. Yesterday I tried with the gcc 3.4.3, glibc 2.3.5 and binutils 2.16.1. libgcc.a looks O.K, because I did not find any FP instruction, however if I do objdump on libc.so.6, I get: 0002ff70 <__sigsetjmp_aux>: 2ff70: 3c1c0017 lui gp,0x17 2ff74: 279cce30 addiu gp,gp,-12752 2ff78: 0399e021 addu gp,gp,t9 2ff7c: 00801021 move v0,a0 2ff80: e4940038 swc1 $f20,56(a0) 2ff84: e495003c swc1 $f21,60(a0) 2ff88: e4960040 swc1 $f22,64(a0) 2ff8c: e4970044 swc1 $f23,68(a0) 2ff90: e4980048 swc1 $f24,72(a0) 2ff94: e499004c swc1 $f25,76(a0) 2ff98: e49a0050 swc1 $f26,80(a0) 2ff9c: e49b0054 swc1 $f27,84(a0) 2ffa0: e49c0058 swc1 $f28,88(a0) 2ffa4: e49d005c swc1 $f29,92(a0) 2ffa8: e49e0060 swc1 $f30,96(a0) 2ffac: e49f0064 swc1 $f31,100(a0) 2ffb0: ac9f0000 sw ra,0(a0) 2ffb4: ac860004 sw a2,4(a0) 2ffb8: ac870028 sw a3,40(a0) Again, FP instructions! I don't know what is wrong :-( Now I am trying with the: GCC: 4.1.0 GLIBC: 2.3.5 BINUTILS: 2.16.1 Linux Headers: 2.6.11 Will let you know, when the toolchain is built. BR, Matej P.S.: I am cc-ing crosstool mailing list too.