FW: procedure for building rtems-4.5.0beta2

Mike Davies mikert at noco.demon.co.uk
Thu May 4 10:16:43 UTC 2000

In message <20000504022823.16486.qmail at web612.mail.yahoo.com>, m ds
<mdsdm at yahoo.com> writes
>It seems, from other's previous messages, that the
>latest beta doesn't work correctly with cygwin. I'm
>not sure on how to fix that, but the test of the cross
>compiler you did, isn't exactly bare-bones. A simpler
>test, like in the old "Getting Started" guide, might
>be better. It doesn't test the linker though:
>--cut here------
>int f (int i)
>   return (i+1);
>--end cut--------
>then assemble (extremely verbosely) with:
>i386-rtems-gcc -c -v -Q -o f.o f.c
>Hope this helps somewhat,


I tried the little function that you suggested, and it
seems to work (I took an object dump of the resulting
object file and put it at the end of the compiler output).

I tried the command "./bit_rtems i386 pc386" again with the problem
result as before (compiler can't produce executables !) :-(

Does anybody have a fix for the latest beta under Cygwin ?

Thanks for your help

bash-2.02$ i386-rtems-gcc -c -v -Q -o f.o f.c
Reading specs from /home/mike/rtems-4.5.0-beta2/install/lib/gcc-
gcc version 2.95.2 19991024 (release)
lib/i386-rtems/2.95.2/cpp.exe -lan
g-c -v -D__GNUC__=2 -D__GNUC_MINOR__=95 -Di386 -Drtems -D__rtems__ -
D__i386__ -D
__rtems__ -D__rtems__ -D__i386 -D__rtems -Asystem(rtems) -Acpu(i386) -
386) f.c C:\TEMP/ccqExu13.i
GNU CPP version 2.95.2 19991024 (release) (i386 RTEMS with ELF)
#include "..." search starts here:
#include <...> search starts here:
End of search list.
The following default directories have been omitted from the search
End of omitted list.
lib/i386-rtems/2.95.2/cc1.exe C:\T
EMP/ccqExu13.i -dumpbase f.c -version -o C:\TEMP/cc86CZu1.s
GNU C version 2.95.2 19991024 (release) (i386-rtems) compiled by GNU C
version 2
.95.2 19991024 (release).
options passed:
options enabled:  -fpeephole -ffunction-cse -fkeep-static-consts
 -fpcc-struct-return -fcommon -fgnu-linker -fargument-alias -fident -
 -mhard-float -mno-soft-float -mieee-fp -mfp-ret-in-387 -mschedule-
 -mcpu=i386 -march=pentium
time in parse: 0.000000
time in integration: 0.000000
time in jump: 0.000000
time in cse: 0.000000
time in gcse: 0.000000
time in loop: 0.000000
time in cse2: 0.000000
time in branch-prob: 0.000000
time in flow: 0.000000
time in combine: 0.000000
time in regmove: 0.000000
time in sched: 0.000000
time in local-alloc: 0.000000
time in global-alloc: 0.000000
time in flow2: 0.000000
time in sched2: 0.000000
time in shorten-branch: 0.000000
time in stack-reg: 0.000000
time in final: 0.000000
time in varconst: 0.000000
time in symout: 0.000000
time in dump: 0.000000
 /home/mike/rtems-4.5.0-beta2/install/i386-rtems/bin/as.exe -V -Qy -o
f.o C:\TEMP/cc86CZu1.s
GNU assembler version 2.9.5 (i386-rtems) using BFD version

bash-2.02$ i386-rtems-objdump -afpxd f.o

f.o:     file format elf32-i386
architecture: i386, flags 0x00000010:
start address 0x00000000

Idx Name          Size      VMA       LMA       File off  Algn
  0 .text         0000000e  00000000  00000000  00000034  2**2
                                  CONTENTS, ALLOC, LOAD, READONLY, CODE
  1 .data         00000000  00000000  00000000  00000044  2**2
                                  CONTENTS, ALLOC, LOAD, DATA
  2 .bss          00000000  00000000  00000000  00000044  2**2
  3 .note         00000014  00000000  00000000  00000044  2**0
                                  CONTENTS, READONLY
  4 .comment      00000026  00000000  00000000  00000058  2**0
                                  CONTENTS, READONLY
00000000 l    df *ABS*  00000000 f.c
00000000 l    d  .text  00000000
00000000 l    d  .data  00000000
00000000 l    d  .bss   00000000
00000000 l       .text  00000000 gcc2_compiled.
00000000 l    d  .note  00000000
00000000 l    d  .comment       00000000
00000000 g     F .text  0000000e f

Disassembly of section .text:

00000000 <f>:
   0:   55                      push   %ebp
   1:   89 e5                   mov    %esp,%ebp
   3:   8b 55 08                mov    0x8(%ebp),%edx
   6:   42                      inc    %edx
   7:   89 d0                   mov    %edx,%eax
   9:   eb 01                   jmp    c <f+0xc>
   b:   90                      nop
   c:   c9                      leave
   d:   c3                      ret

Mike Davies

More information about the users mailing list