Hi > Now I am trying with the: > GCC: 4.1.0 > GLIBC: 2.3.5 > BINUTILS: 2.16.1 > Linux Headers: 2.6.11 Here are the results: ligcc.a does not have any sf instructions. busybox built as dynamic binary does not have any sf ins. libc.so.6 has this: ------------------------------------------------------------- 0002fe80 <__longjmp>: 2fe80: c4940038 lwc1 $f20,56(a0) 2fe84: c495003c lwc1 $f21,60(a0) 2fe88: c4960040 lwc1 $f22,64(a0) 2fe8c: c4970044 lwc1 $f23,68(a0) 2fe90: c4980048 lwc1 $f24,72(a0) 2fe94: c499004c lwc1 $f25,76(a0) 2fe98: c49a0050 lwc1 $f26,80(a0) 2fe9c: c49b0054 lwc1 $f27,84(a0) 2fea0: c49c0058 lwc1 $f28,88(a0) 2fea4: c49d005c lwc1 $f29,92(a0) 2fea8: c49e0060 lwc1 $f30,96(a0) 2feac: c49f0064 lwc1 $f31,100(a0) 2feb0: 8c820030 lw v0,48(a0) 2feb4: 00000000 nop 2feb8: 44c2f800 ctc1 v0,$31 2febc: 8c9c002c lw gp,44(a0) 2fec0: 8c900008 lw s0,8(a0) 2fec4: 8c91000c lw s1,12(a0) 2fec8: 8c920010 lw s2,16(a0) 2fecc: 8c930014 lw s3,20(a0) 2fed0: 8c940018 lw s4,24(a0) 2fed4: 8c95001c lw s5,28(a0) 2fed8: 8c960020 lw s6,32(a0) 2fedc: 8c970024 lw s7,36(a0) 2fee0: 8c990000 lw t9,0(a0) 2fee4: 8c9d0004 lw sp,4(a0) 2fee8: 8c9e0028 lw s8,40(a0) 2feec: 14a00005 bnez a1,2ff04 <__longjmp+0x84> 2fef0: 00000000 nop 2fef4: 03200008 jr t9 2fef8: 24020001 li v0,1 2fefc: 1000ffff b 2fefc <__longjmp+0x7c> 2ff00: 00000000 nop 2ff04: 03200008 jr t9 2ff08: 00a01021 move v0,a1 2ff0c: 1000fffb b 2fefc <__longjmp+0x7c> 2ff10: 00000000 nop ------------------------------------------------------------- and ------------------------------------------------------------- 0002ff70 <__sigsetjmp_aux>: 2ff70: 3c1c0017 lui gp,0x17 2ff74: 279cce40 addiu gp,gp,-12736 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) 2ffbc: ac9c002c sw gp,44(a0) 2ffc0: ac900008 sw s0,8(a0) 2ffc4: ac91000c sw s1,12(a0) 2ffc8: ac920010 sw s2,16(a0) 2ffcc: ac930014 sw s3,20(a0) 2ffd0: ac940018 sw s4,24(a0) 2ffd4: ac95001c sw s5,28(a0) 2ffd8: ac960020 sw s6,32(a0) 2ffdc: ac970024 sw s7,36(a0) 2ffe0: 8f9982a8 lw t9,-32088(gp) 2ffe4: 4443f800 cfc1 v1,$31 2ffe8: 03200008 jr t9 2ffec: ac430030 sw v1,48(v0) ------------------------------------------------------------- I did: mipsel-linux-objdump -S libc.so.6 | less and then searching for $f (floating point registers) If I link busybox static, I get those two functions linked in. How to solve this? One more thing. I can compile strace only with gcc-3.3.4. With any other version I get: syscall.c:449: error: 'SYS_read' undeclared (first use in this function) I applayed the patch for this, but it doesn't seem to help. BR, Matej
