With a new version of gcrtl.o, I can now compiled the application now. Thanx for pointing out it. Aaron -----Original Message----- From: Ian Lance Taylor [mailto:ian@xxxxxxxx] Sent: Thursday, September 29, 2005 10:52 AM To: Aaron Chen Cc: gcc-help@xxxxxxxxxxx Subject: Re: Fail to compile file with profile for mips system using cross-compiling "Aaron Chen" <AaronC@xxxxxxxxxxxxxxxx> writes: > The steps to reproduce the error: > 1.mips_lexra_fp_be-gcc -c -pg -g test.c > 2.mips_lexra_fp_be-gcc -pg -o test test.o > > Then get the following error messages: > ###### > /projects/mips/lexra_fp_be/bin/../target/usr/lib/gcrt1.o: In function `__gmon_start__': > gmon-start.c(.text+0xb8): undefined reference to `_start' > collect2: ld returned 1 exit status > ####### In general profiling requires library support. gcc will do its best to set up the profiling call, but if you don't have the right support in the library and the OS it will fail. In particular the gcrt1.o file did not come from gcc. Sorry I can't be more helpful. Ian