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 Robotics / RCX / legOS / 3815
3814  |  3816
Subject: 
Re: compiling problmes 2
Newsgroups: 
lugnet.robotics.rcx.legos
Date: 
Thu, 7 Oct 2004 12:34:49 GMT
Viewed: 
8925 times
  
On Thursday 07 October 2004 11:23, ruessel wrote:
Hello Jochen, hello everybody,

thank you very much. Both of your hints helped a lot. As it were 271
linker-errors before your help, there are just 40 left now.
Maybe someone can help me and tell me where the other references are defined and
how I can resolve this overlapping problem:


Phase Linker starting
h8300-elf-ld.exe: section .text.hi [0000b3f0 -> 0000b437] overlaps section .bss
[0000b3f0 -> 0000b671]

I had the same problem when going to newer binutils and gcc.  Look at the
patch brickos-gcc33.diff at http://hoenicke.ath.cx/rcx/brickOS.html
The first part of that patch changes the linker script slightly to avoid this error.

h8300-elf-ld.exe: warning: cannot find entry symbol _start; defaulting to
00008000

I think with the default linker-script the directive ENTRY("_kmain") changes _start
to _kmain.

..\critsec.o(.text+0x89): In function `enter_critical_section':
..\critsec.c:98: undefined reference to `wait_event'
..\kmain.c:193: undefined reference to `tm_init'
..\kmain.o(.text+0xc7):..\kmain.c:225: undefined reference to `tm_start'
..\program.c:133: undefined reference to `execi'
..\program.o(.text+0x135):..\program.c:325: undefined reference to `msleep'
..\program.o(.text+0x15f):..\program.c:335: undefined reference to `killall'
..\program.c:384: undefined reference to `shutdown_tasks'

All these symbols are defined in tm.c

..\tm.o(.text+0xcf): In function `msleep':
..\tm.c:299: undefined reference to `MSECS_TO_TICKS'
..\tm.o(.text+0xdf):..\tm.c:299: undefined reference to `wait_event'
..\tm.o(.text+0xeb):..\tm.c:300: undefined reference to `MSECS_TO_TICKS'
..\tm.o(.text+0x1e1): In function `exit':
..\tm.c:580: undefined reference to `yield'

Hmm, maybe these errors in tm.c are the real problem.  yield is an inline assembler
function defined in tm.c.  MSECS_TO_TICKS is a macro defined in include/time.h

  Jochen



Message is in Reply To:
  Re: compiling problmes 2
 
(...) Hello Jochen, hello everybody, thank you very much. Both of your hints helped a lot. As it were 271 linker-errors before your help, there are just 40 left now. Maybe someone can help me and tell me where the other references are defined and (...) (20 years ago, 7-Oct-04, to lugnet.robotics.rcx.legos)

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