LM3S2776, Eclipse, Codesourcery GCC, arm-none-eabi-gdb
Hi All, I think I am having Linker problems and I have not yet become One with the Voodoo magic of complex makefiles.
Due to memory size constraints I am trying to use the FreeType 2 library in my application instead of storing bitmaps for large characters to be displayed on an LCD.
I have been building my application on the LM3S1968 uart_echo example (because it was a good place to start) so I am still using the Makefile (modified to suit) and as a result depend on the Makedefs file.
I have compiled Freetype 2 library with its makefile to produce libfreetype.a
Added the following to the Makefile:
IPATH+=/FreeType/include
${COMPILER}/uart_echo.axf: c:/Freetype/objs/libfreetype.a
I am following the FreeType 2 tutorial http://freetype.sourceforge.net/freetyp … step1.html
and so code looks like this:
#include “ft2build.h”
#include FT_FREETYPE_H //this is actually legal BTW
void main(){
FT_Library library; /* handle to library */ //This works fine
FT_Face face; /* handle to face object */
error = FT_Init_FreeType( &library ); //This is causing the errors
and I get the following errors
make all
LD gcc/uart_echo.axf
c:/stellarisidestuff/codesourcery/sourcery g++ lite/bin/…/lib/gcc/arm-none-eabi/4.4.1/…/…/…/…/arm-none-eabi/lib/thumb2/libc.a(lib_a-fstatr.o): In function `_fstat_r’:
fstatr.c:(.text+0x14): undefined reference to `_fstat’
c:/stellarisidestuff/codesourcery/sourcery g++ lite/bin/…/lib/gcc/arm-none-eabi/4.4.1/…/…/…/…/arm-none-eabi/lib/thumb2/libc.a(lib_a-openr.o): In function `_open_r’:
openr.c:(.text+0x16): undefined reference to `_open’
…this continues for sbrk, write, close, isatty, lseek, read
After much searching I found this thread http://old.nabble.com/Invalid-Preproces … 78956.html (where I have also posted but don’t expect a quick reply if any)
So I tried adding the lines to my Makefile (no idea if this is the solution)
freetype_cflags = freetype-config --cflags
freetype_libs = freetype-config --libs
CFLAGS += $freetype_cflags
LDFLAGS += $freetype_libs
However that generates the following errors(what is the correct format for this ??):
make all
arm-none-eabi-gcc: reetype_cflags: No such file or directory
arm-none-eabi-gcc: reetype_cflags: No such file or directory
arm-none-eabi-gcc: reetype_cflags: No such file or directory
arm-none-eabi-gcc: reetype_cflags: No such file or directory
LD gcc/uart_echo.axf
C:\StellarisIDEstuff\CodeSourcery\Sourcery G++ Lite\bin\arm-none-eabi-ld.EXE: reetype_libs: No such file: No such file or directory
make: *** [gcc/uart_echo.axf] Error 1
There is also this in the Codesourcery Getting Started guide. Ch 4.1 pg 20
"Sourcery G++ requires that you specify a linker script with the -T option to build applications for
bare-board targets. Linker errors like undefined reference to `read’ are a symptom of
failing to use an appropriate linker script. Default linker scripts are provided in arm-none-eabi/
lib. Refer to Chapter 5, “CS3™: The CodeSourcery Common Startup Code Sequence” for information
about the boards and linker scripts supported by Sourcery G++ Lite. You must also add the
processor options for your board, as documented in that chapter, to your compile and link command
lines."
I think there is some stupid error im making with getting this thing to link, however I have no idea !
