Content originally posted in LPCWare by jdebliek on Fri Jul 04 09:55:41 MST 2014
I am getting a number of undefined references when compiling a project. I have tried the nohost and semihost redlib libraries and even newlib, but I get the following reference errors:
c:/nxp/lpcxpresso_6.1.0_164/lpcxpresso/tools/bin/../lib/gcc/arm-none-eabi/4.6.2/../../../../arm-none-eabi/lib/armv7-m\libcr_c.a(alloc.o): In function `malloc':
alloc.c:(.text.malloc+0x70): undefined reference to `_sbrk'
alloc.c:(.text.malloc+0x90): undefined reference to `_sbrk'
c:/nxp/lpcxpresso_6.1.0_164/lpcxpresso/tools/bin/../lib/gcc/arm-none-eabi/4.6.2/../../../../arm-none-eabi/lib/armv7-m\libcr_c.a(alloc.o): In function `_Csys_alloc':
alloc.c:(.text._Csys_alloc+0xe): undefined reference to `__sys_write'
alloc.c:(.text._Csys_alloc+0x12): undefined reference to `__sys_appexit'
c:/nxp/lpcxpresso_6.1.0_164/lpcxpresso/tools/bin/../lib/gcc/arm-none-eabi/4.6.2/../../../../arm-none-eabi/lib/armv7-m\libcr_c.a(cr_clock.o): In function `clock':
cr_clock.c:(.text.clock+0x0): undefined reference to `__sys_clock'
c:/nxp/lpcxpresso_6.1.0_164/lpcxpresso/tools/bin/../lib/gcc/arm-none-eabi/4.6.2/../../../../arm-none-eabi/lib/armv7-m\libcr_c.a(_deferredlazyseek.o): In function `__flsbuf':
_deferredlazyseek.c:(.text.(float, long, short, bool, float __restrict)+0x8a): undefined reference to `__sys_istty'
c:/nxp/lpcxpresso_6.1.0_164/lpcxpresso/tools/bin/../lib/gcc/arm-none-eabi/4.6.2/../../../../arm-none-eabi/lib/armv7-m\libcr_c.a(_writebuf.o): In function `_Cwritebuf':
_writebuf.c:(.text._Cwritebuf+0x16): undefined reference to `__sys_flen'
_writebuf.c:(.text._Cwritebuf+0x2a): undefined reference to `__sys_seek'
_writebuf.c:(.text._Cwritebuf+0x52): undefined reference to `__sys_write'
c:/nxp/lpcxpresso_6.1.0_164/lpcxpresso/tools/bin/../lib/gcc/arm-none-eabi/4.6.2/../../../../arm-none-eabi/lib/armv7-m\libcr_c.a(fseek.o): In function `fseek':
fseek.c:(.text.fseek+0x1a): undefined reference to `__sys_istty'
fseek.c:(.text.fseek+0x3c): undefined reference to `__sys_flen'
If I disable the "no startup or default libs" linker option, I get fewer undefined references, but there are still two remaining:
c:/nxp/lpcxpresso_6.1.0_164/lpcxpresso/tools/bin/../lib/gcc/arm-none-eabi/4.6.2/../../../../arm-none-eabi/lib/armv7-m\libc.a(lib_a-sbrkr.o): In function `_sbrk_r':
sbrkr.c:(.text._sbrk_r+0xc): undefined reference to `_sbrk'
c:/nxp/lpcxpresso_6.1.0_164/lpcxpresso/tools/bin/../lib/gcc/arm-none-eabi/4.6.2/../../../../arm-none-eabi/lib/armv7-m\libc.a(lib_a-timesr.o): In function `_times_r':
timesr.c:(.text._times_r+0x2): undefined reference to `_times'
I am not sure what else to try. Any help would be appreciated.
