> "Hansen" <[EMAIL PROTECTED]> wrote in message > news:[EMAIL PROTECTED] >> Hi Group >> >> I've started up a C++ standard make project in Eclipse, where I would >> like to make an applikation for the lpc2138. >> >> When trying to use C++ functions like <stdio.h> and printf() I get the >> following message when linking: >> >> undefined reference to 'puts' >> >> I get the same kind of message when trying other functions as well, and >> also >> when trying to declare a function as virtual. Also when using assert() >> which >> are a C function. >> >> My linking command looks like this: >> >> -T $(LD_SCRIPT_RAM) -lstdc++ >> -Wl,-Map=".\bin\Ram\Blinky.map",-Ttext=0x40000000,-Tdata=0x40003000 \ >> --gc-sections -o .\RAM\Blinky.elf \ >> -nostartfiles -nodefaultlibs
>"Lionel B" <[EMAIL PROTECTED]> wrote in message >news:[EMAIL PROTECTED] > > It sounds as if the linker is not picking up the standard library libc. Is > there a particular reason you are using > he -nostartfiles and -nodefaultlibs options? These tell the linker not to > use standard system startup files and > standard system libraries respectively. Without -nodefaultlibs you > shouldn't have to specify -lstdc++ either - the > linker should automatically pick up the standard libraries. Maybe try > passing: > > -T $(LD_SCRIPT_RAM) \ > -Wl,-Map=".\bin\Ram\Blinky.map",-Ttext=0x40000000,-Tdata=0x40003000 \ > --gc-sections -o .\RAM\Blinky.elf > > Regards, > -- > Lionel B I have my own startup.s since this is needed for the lpc2138. Thats why I use the -nostartfiles. But when removing the -nodefaultlibs I get the a line of undefined references from libc.a. Also since my memory on the lpc2138 is rather limited I don't want to bring unused code in my application. I've tried using the following options: -T $(LD_SCRIPT_RAM) -lc -lnewlib.lpc -Wl,-Map=".\bin\Ram\Blinky.map",-Ttext=0x40000000,-Tdata=0x40003000 \ --gc-sections -o .\RAM\Blinky.elf -nostartfiles -nodefaultlibs And it resultet in 3 undefined references to 'device table' in libnewlib-lpc.a I'm rather new at this, so pleace have patience with me :o) Regards S�ren Hansen _______________________________________________ Help-gplusplus mailing list [email protected] http://lists.gnu.org/mailman/listinfo/help-gplusplus
