Mail Archives: djgpp/2013/12/11/14:30:06
This is a multi-part message in MIME format.
--------------060303080403020808090609
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
On 12/11/2013 09:20 PM, Andris Pavenis wrote:
> On 11/28/2013 07:05 PM, DJ Delorie wrote:
>>> I found this:
>>> https://groups.google.com/forum/#!topic/comp.os.msdos.djgpp/WeMjxnR1NBc
>>> which seems to indicate that GCC will output non-386 opcodes anyway :-(
>> Only for atomic operations, which are typically only used when
>> threading, and DJGPP doesn't support threading.
> I did check with simple script (see attachment) under Linux in cross-compiler
> libstdc++ build directory (therefore i586-pc-msdosdjgpp-objdump)
>
Forgot to attach the script.
Running it in top build directory for gcc-4.8.2 cross-compiler I'm getting
output given in another attachment. So one can on 30386 expect trouble
not only with libstdc++ but also with FORTRAN, Ada and possibly even C
Andris
--------------060303080403020808090609
Content-Type: application/x-shellscript;
name="search486.sh"
Content-Transfer-Encoding: base64
Content-Disposition: attachment;
filename="search486.sh"
IyEgL2Jpbi9zaApzZWFyY2hfd29yZHM9ImJzd2FwIGNtcHhjaGcgeGFkZCIKc3JjX2ZpbGVz
PSQoZmluZCAuIC10eXBlIGYgLWEgLW5hbWUgJyoubycpCmZvciB3IGluICRzZWFyY2hfd29y
ZHMgOyBkbwogICAgZm9yIHggaW4gJHNyY19maWxlcyA7IGRvCiAgICAgICAgaWYgaTU4Ni1w
Yy1tc2Rvc2RqZ3BwLW9iamR1bXAgLS1kaXNhc3NlbWJsZSAkeCAyPi9kZXYvbnVsbCB8IGdy
ZXAgLXcgJHcgID5kaXNhc20udG1wIDsgdGhlbgogICAgICAgICAgICBlY2hvICc9PT09PT09
PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PScKICAgICAgICAg
ICAgZWNobyAkeAogICAgICAgICAgICBjYXQgZGlzYXNtLnRtcAogICAgICAgIGZpCiAgICBk
b25lCmRvbmUK
--------------060303080403020808090609
Content-Type: text/plain; charset=UTF-8;
name="search486.out"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
filename="search486.out"
==================================================
./i586-pc-msdosdjgpp/libgcc/_bswapsi2.o
4: 0f c8 bswap %eax
==================================================
./i586-pc-msdosdjgpp/libgcc/_bswapdi2.o
8: 0f ca bswap %edx
a: 0f c8 bswap %eax
==================================================
./i586-pc-msdosdjgpp/libgfortran/file_pos.o
3f1: 0f c8 bswap %eax
3fb: 0f c8 bswap %eax
==================================================
./i586-pc-msdosdjgpp/libgfortran/transfer.o
58: 0f cb bswap %ebx
6f: 0f cb bswap %ebx
71: 0f ce bswap %esi
8a: 0f cb bswap %ebx
97: 0f cb bswap %ebx
99: 0f c9 bswap %ecx
b9: 0f ce bswap %esi
bb: 0f cf bswap %edi
bd: 0f c9 bswap %ecx
bf: 0f cb bswap %ebx
a8: 0f ca bswap %edx
aa: 0f c9 bswap %ecx
d5: 0f ca bswap %edx
77: 0f ca bswap %edx
f6: 0f ca bswap %edx
==================================================
./i586-pc-msdosdjgpp/libquadmath/printf/fpioconst.o
a77: 0f cd bswap %ebp
==================================================
./i586-pc-msdosdjgpp/libquadmath/math/j1q.o
79a3: 0f c9 bswap %ecx
==================================================
./i586-pc-msdosdjgpp/libquadmath/math/expq.o
389a: 0f c8 bswap %eax
==================================================
./gcc/ada/rts/a-nscoty.o
10d1: 0f c9 bswap %ecx
==================================================
./gcc/ada/rts/a-ncelfu.o
57e9: 0f c9 bswap %ecx
==================================================
./gcc/ada/rts/a-nucoty.o
10d1: 0f c9 bswap %ecx
==================================================
./gcc/ada/rts/g-shsh32.o
3db: 0f cc bswap %esp
4eb: 0f cc bswap %esp
==================================================
./gcc/ada/rts/a-nscefu.o
57e9: 0f c9 bswap %ecx
==================================================
./gcc/ada/rts/g-bytswa.o
16: 0f c8 bswap %eax
2f: 0f ce bswap %esi
31: 0f cb bswap %ebx
==================================================
./gcc/ada/rts/i-fortra.o
2505: 0f c9 bswap %ecx
==================================================
./gcc/ada/rts/g-alleve.o
1205d: 0f c9 bswap %ecx
==================================================
./i586-pc-msdosdjgpp/libbacktrace/fileline.o
94: f0 0f b1 73 1c lock cmpxchg %esi,0x1c(%ebx)
b3: f0 0f b1 43 0c lock cmpxchg %eax,0xc(%ebx)
1d0: f0 0f b1 53 0c lock cmpxchg %edx,0xc(%ebx)
1fd: f0 0f b1 53 1c lock cmpxchg %edx,0x1c(%ebx)
==================================================
./i586-pc-msdosdjgpp/libbacktrace/dwarf.o
20af: f0 0f b1 02 lock cmpxchg %eax,(%edx)
222a: f0 0f b1 39 lock cmpxchg %edi,(%ecx)
2729: f0 0f b1 4b 34 lock cmpxchg %ecx,0x34(%ebx)
2730: f0 0f b1 73 38 lock cmpxchg %esi,0x38(%ebx)
2737: f0 0f b1 7b 3c lock cmpxchg %edi,0x3c(%ebx)
2742: f0 0f b1 4b 30 lock cmpxchg %ecx,0x30(%ebx)
35c4: f0 0f b1 1a lock cmpxchg %ebx,(%edx)
4539: f0 0f b1 0b lock cmpxchg %ecx,(%ebx)
4545: f0 0f b1 13 lock cmpxchg %edx,(%ebx)
==================================================
./i586-pc-msdosdjgpp/libgfortran/unit.o
3: f0 0f c1 05 00 00 00 lock xadd %eax,0x0
==================================================
./i586-pc-msdosdjgpp/libgfortran/unix.o
58: f0 0f c1 0b lock xadd %ecx,(%ebx)
==================================================
./i586-pc-msdosdjgpp/libstdc++-v3/src/c++98/atomicity.o
8: f0 0f c1 02 lock xadd %eax,(%edx)
==================================================
./i586-pc-msdosdjgpp/libstdc++-v3/libsupc++/eh_ptr.o
20: f0 0f c1 43 a0 lock xadd %eax,-0x60(%ebx)
11: f0 0f c1 50 a0 lock xadd %edx,-0x60(%eax)
==================================================
./i586-pc-msdosdjgpp/libstdc++-v3/libsupc++/eh_throw.o
12: f0 0f c1 50 c0 lock xadd %edx,-0x40(%eax)
==================================================
./i586-pc-msdosdjgpp/libstdc++-v3/libsupc++/eh_tm.o
f: f0 0f c1 03 lock xadd %eax,(%ebx)
==================================================
./i586-pc-msdosdjgpp/libquadmath/math/sincos_table.o
f1b: 0f c1 c7 xadd %eax,%edi
==================================================
./i586-pc-msdosdjgpp/libquadmath/math/erfq.o
40ee: 0f c0 d8 xadd %bl,%al
==================================================
./i586-pc-msdosdjgpp/libquadmath/math/lgammaq.o
602e: 0f c0 e1 xadd %ah,%cl
603e: 0f c0 38 xadd %bh,(%eax)
638e: 0f c0 26 xadd %ah,(%esi)
==================================================
./i586-pc-msdosdjgpp/libquadmath/math/log2q.o
e2e: 0f c0 c8 xadd %cl,%al
==================================================
./i586-pc-msdosdjgpp/libquadmath/math/log10q.o
fbe: 0f c0 c8 xadd %cl,%al
--------------060303080403020808090609--
- Raw text -