Lpc2000

Steve Franks wrote:

>Anyone know what lib's contain the following?  I can't seem to locate
>it.  Or, it could be a link ordering problem, I suppose.  I get the
>same errors when adding either a call to sprintf or std::stringstream
>
>Thanks,
>Steve
>
>C:\WinARM\arm-elf\lib\libc.a(mallocr.o): In function
>`_malloc_r':mallocr.c:(.text+0x430): undefined reference to `_sbrk_r'
>:mallocr.c:(.text+0x5ec): undefined reference to `_sbrk_r'
>C:\WinARM\arm-elf\lib\libc.a(syswrite.o): In function
>`write':syswrite.c:(.text+0x24): undefined reference to `_write_r'
>C:\WinARM\arm-elf\lib\libc.a(freer.o): In function
>`_malloc_trim_r':mallocr.c:(.text+0x48): undefined reference to
>`_sbrk_r'
>:mallocr.c:(.text+0x70): undefined reference to `_sbrk_r'
>:mallocr.c:(.text+0xb4): undefined reference to `_sbrk_r'
>C:\WinARM\arm-elf\lib\libc.a(makebuf.o): In function
>`__smakebuf':makebuf.c:(.text+0x44): undefined reference to `_fstat_r'
>:makebuf.c:(.text+0xe4): undefined reference to `isatty'
>C:\WinARM\arm-elf\lib\libc.a(stdio.o): In function
>`__sread':stdio.c:(.text+0x1c): undefined reference to `_read_r'
>C:\WinARM\arm-elf\lib\libc.a(stdio.o): In function
>`__swrite':stdio.c:(.text+0x78): undefined reference to `_lseek_r'
>:stdio.c:(.text+0x9c): undefined reference to `_write_r'
>C:\WinARM\arm-elf\lib\libc.a(stdio.o): In function
>`__sseek':stdio.c:(.text+0xc0): undefined reference to `_lseek_r'
>C:\WinARM\arm-elf\lib\libc.a(stdio.o): In function
>`__sclose':stdio.c:(.text+0xf8): undefined reference to `_close_r'
>make: *** [main.elf] Error 1
>
>  
>

Those are definately newlib stub functions being called.  A stub is a 
hook in newlib that normally doesn't require any external function to be 
linked to it, unless that stub function gets linked into your program.  
Look around for newlib stub examples.  I have a number of those stub 
functions on the rdcf2 DOS filesystem:

http://www.openhardware.net/?title=RDCF2%20DOS%20FAT%20Filesystem%20for%20LPC2138&dir=rdcf2&file=rdcf2lpc2138.html

TomW

-- 
Tom Walsh - WN3L - Embedded Systems Consultant
http://openhardware.net, http://cyberiansoftware.com
"Windows? No thanks, I have work to do..."
----------------------------------------------------