T_RAIN wrote:
> Currently i got the folliwing error:
>
> Code:
> undefined reference to `malloc'

Is this the complete message? Did you include <stdio.h>? Any message
about with "sbrk"? Did you search the forum for newlib, syscalls and
stdo? Please paste or attach the complete output from the build-process.

Thanks for your reply:

Here is the complete output of the build process:

make -k all
...compiling main.c
arm-elf-gcc -I./ -c -fno-common -O0 -g main.c
...linking
arm-elf-ld -v -lc  -Map main.map -Tdemo_at91sam7_blink_flash.cmd -o
main.out crt.o  main.o lcd.o lowlevelInit.o debug.o libgcc.a
GNU ld version 2.17
main.o: In function `main':
I:\SOFTWARE\5.Semester\ARM_Projects\demo_at91sam7_blink_flash/main.c:49:
undefined reference to `printf'
make: *** [main.out] Error 1
make: Target `all' not remade because of errors.


This is the Makefile that i'm currently using:

# ***************************************************************
#      Makefile for Atmel AT91SAM7S256 - flash execution       
#                                                              
#                                                              
# * James P Lynch  September 3, 2006                            *
# ***************************************************************

NAME   = demo_at91sam7_blink_flash

# variables
CC      = arm-elf-gcc
LD      = arm-elf-ld -v -lc
AR      = arm-elf-ar
AS      = arm-elf-as
CP      = arm-elf-objcopy
OD    = arm-elf-objdump

CFLAGS  = -I./ -c -fno-common -O0 -g
AFLAGS  = -ahls -mapcs-32 -o crt.o
LFLAGS  =  -Map main.map -Tdemo_at91sam7_blink_flash.cmd
CPFLAGS = --output-target=binary
ODFLAGS  = -x --syms

OBJECTS = crt.o  main.o lcd.o lowlevelInit.o debug.o


# make target called by Eclipse (Project -> Clean ...)
clean:
  -rm $(OBJECTS) crt.lst main.lst main.out main.bin main.hex main.map
main.dmp


#make target called by Eclipse  (Project -> Build Project)
all:  main.out
  @ echo "...copying"
  $(CP) $(CPFLAGS) main.out main.bin
  $(OD) $(ODFLAGS) main.out > main.dmp

main.out: $(OBJECTS) demo_at91sam7_blink_flash.cmd
  @ echo "...linking"
  $(LD) $(LFLAGS) -o main.out $(OBJECTS) libgcc.a

crt.o: crt.s
  @ echo "...assembling crt.s"
  $(AS) $(AFLAGS) crt.s > crt.lst

main.o: main.c  include\AT91SAM7X256.h include\board_ex256.h
include\registers.h include\lcd.h
  @ echo "...compiling main.c"
  $(CC) $(CFLAGS) main.c

lcd.o: lcd.c  include\AT91SAM7X256.h include\ext_registers.h
include\lcd.h include\bits.h
  @ echo "...compiling lcd.c"
  $(CC) $(CFLAGS) lcd.c

lowlevelInit.o: lowlevelInit.c include\AT91SAM7X256.h
include\board_ex256.h
  @ echo "...compiling lowlevelInit.c"
  $(CC) $(CFLAGS) lowlevelInit.c

debug.o: debug.c include\AT91SAM7X256.h include\board_ex256.h
include\lib_AT91SAM7XC256.h
  @ echo "...compiling debug.c"
  $(CC) $(CFLAGS) debug.c


and yes i inculded:
#include <stdio.h>
#include <stdlib.h>

to my main.c file

I got these error message when i'm using functions like printf, malloc,
sprintf...


Is the liggcc file the newlib library. If not please tell me where I can
find it  in the yagarto filestructure.


Thank's a lot

Greetings,
T_RAIN


Martin Thomas wrote:
> T_RAIN wrote:
>> Currently i got the folliwing error:
>>
>> Code:
>> undefined reference to `malloc'
>
> Is this the complete message? Did you include <stdio.h>? Any message
> about with "sbrk"? Did you search the forum for newlib, syscalls and
> stdo? Please paste or attach the complete output from the build-process.

T_RAIN wrote:
> Hello everybody!
>
> I'm very new to the ARM controllers. I'm currently working with an
> ATSAM7 and the YAGARTO Toolchain.
>
> The toolchain works fine but i'm missing functions like sprintf and
> malloc!
>
> I read that they are avialable at the newlib library. How do i include
> this library into my code? I couldn't find any newlib directory in the
> installation path of Yagarto.
>
> Do i need special linker or complier flags when my code uses sprintf or
> malloc functions?
>
> Currently i got the folliwing error:
>
> Code:
> undefined reference to `malloc'
>
>
> Tanks a lot
>
> Greetings
> T_RAIN

Hi Both,

I have same kind of problem (almost started a new topic). I'm receiving
this error:

c:/winarm/bin/../lib/gcc/arm-elf/4.1.1/../../../../arm-elf/lib\libc.a(fr 
eer.o):
In function `_malloc_trim_r':
mallocr.c:(.text+0x48): undefined reference to `_sbrk_r'
mallocr.c:(.text+0x64): undefined reference to `_sbrk_r'
mallocr.c:(.text+0x84): undefined reference to `_sbrk_r'
c:/winarm/bin/../lib/gcc/arm-elf/4.1.1/../../../../arm-elf/lib\libc.a(ma 
llocr.o):
In function `_malloc_r':
mallocr.c:(.text+0x424): undefined reference to `_sbrk_r'
mallocr.c:(.text+0x4cc): undefined reference to `_sbrk_r'
collect2: ld returned 1 exit status

I would like to use stdlib.h or otherwise I have to code many standard
functions by my self.

Br. Tony