Subject:
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Re: compiling problmes 2
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Newsgroups:
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lugnet.robotics.rcx.legos
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Date:
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Thu, 7 Oct 2004 09:23:52 GMT
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Viewed:
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8755 times
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In lugnet.robotics.rcx.legos, Jochen Hoenicke wrote:
> On Monday 27 September 2004 14:13, ruessel wrote:
> >
> > I looked for some of those references and all of them are defined as extern in
> > some header-files. So they must be declared in an assembler-file , isn't it? And
> > by the way, I searched the whole directory - even the header files - so those
> > unresolved references are defined nowhere in the whole BrickOS-folder.
> >
> > Where can I get some information how to define these macros?
>
> Some of the functions are inline functions, that are *defined* in the
> header files, e.g.cputc_hex is defined in include/conio.h. With gcc you need
> to compile with optimization on, so that it will inline these functions correctly.
> Another possibility is to replace extern keyword with static, which AFAIK has the
> same effect with optimization on, but includes the functions if compiled without
> optimizations.
>
> Some others are defined in h8300.rcx. This is a linker script that maps theses
> variables to hard-coded addresses used by the ROM. E.g. AD_D is a unsigned
> byte whose address is 0xffe6.
>
> HTH,
> Jochen
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]
h8300-elf-ld.exe: warning: cannot find entry symbol _start; defaulting to
00008000
..\critsec.o(.text+0x89): In function `enter_critical_section':
..\critsec.c:98: undefined reference to `wait_event'
..\dkey.o(.text+0x9d): In function `getchar':
..\dkey.c:125: undefined reference to `wait_event'
..\dkey.o(.text+0xad):..\dkey.c:129: undefined reference to `wait_event'
..\kmain.o(.text+0x89): In function `kmain':
..\kmain.c:193: undefined reference to `tm_init'
..\kmain.o(.text+0xc7):..\kmain.c:225: undefined reference to `tm_start'
..\lnp-logical.o(.text+0x2a9): In function `lnp_logical_write':
..\lnp-logical.c:278: undefined reference to `wait_event'
..\lnp-logical.o(.text+0x2e3):..\lnp-logical.c:289: undefined reference to
`wait_event'
..\program.o(.text+0x97): In function `program_run':
..\program.c:133: undefined reference to `execi'
..\program.o(.text+0x111): In function `program_stop':
..\program.c:320: undefined reference to `shutdown_tasks'
..\program.o(.text+0x135):..\program.c:325: undefined reference to `msleep'
..\program.o(.text+0x15f):..\program.c:335: undefined reference to `killall'
..\program.o(.text+0x4a9): In function `key_handler':
..\program.c:384: undefined reference to `shutdown_tasks'
..\program.o(.text+0x4cb):..\program.c:390: undefined reference to `msleep'
..\program.o(.text+0x4f5):..\program.c:393: undefined reference to `killall'
..\program.o(.text+0x6dd):..\program.c:488: undefined reference to `wait_event'
..\program.o(.text+0x919): In function `program_init':
..\program.c:641: undefined reference to `execi'
..\program.o(.text+0x929):..\program.c:642: undefined reference to `execi'
..\remote.o(.text+0x10b): In function `lr_thread':
..\remote.c:122: undefined reference to `wait_event'
..\remote.o(.text+0x175): In function `lr_startup':
..\remote.c:152: undefined reference to `execi'
..\semaphore.o(.text+0x53): In function `sem_wait':
..\semaphore.c:70: undefined reference to `wait_event'
..\semaphore.o(.text+0xe9): In function `sem_timedwait':
..\semaphore.c:106: undefined reference to `wait_event'
..\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'
Phase Linker finished
Thanks
Rudolf
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Message has 1 Reply:
 | | Re: compiling problmes 2
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| (...) I had the same problem when going to newer binutils and gcc. Look at the patch brickos-gcc33.diff at (URL) first part of that patch changes the linker script slightly to avoid this error. (...) I think with the default linker-script the (...) (20 years ago, 7-Oct-04, to lugnet.robotics.rcx.legos)
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Message is in Reply To:
| | Re: compiling problmes 2
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| (...) Some of the functions are inline functions, that are *defined* in the header files, e.g.cputc_hex is defined in include/conio.h. With gcc you need to compile with optimization on, so that it will inline these functions correctly. Another (...) (20 years ago, 27-Sep-04, to lugnet.robotics.rcx.legos)
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