RE: Fail to compile file with profile for mips system using cross-compiling

RE: Fail to compile file with profile for mips system using cross-compiling

[Aaron Chen]

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@airs.com] 
Sent: Thursday, September 29, 2005 10:52 AM
To: Aaron Chen
Cc: gcc-help@gcc.gnu.org
Subject: Re: Fail to compile file with profile for mips system using
cross-compiling

"Aaron Chen" <AaronC@tridentmicro.com> 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

Re: Fail to compile file with profile for mips system using cross-compiling

[Ian Lance Taylor]

"Aaron Chen" <AaronC@tridentmicro.com> 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

Fail to compile file with profile for mips system using cross-compiling

[Aaron Chen]

Hi all,
   I have met the following issue when compile application with mips system. The test .c file is 

#include <stdio.h>

int main(int argc, char **argv){
    int i = 5;
    int j = 0;

    printf("\nHello World!, i is %x, j is %x\n", i, j);
}
...

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
#######

I googled such issue and find many guys face the same problem but less answers are found or the solutions cannot work. Also, I have tried to add "-static" option , just as some guys mentioned else where but still failed.

What I should point out is that such compiling can work on x86 system. And failed on a mips-cross-compiling system. 

The configuration of my pc is : mips-cross-compiling tool chain, mips-gcc 2.95.3, mips-ld 2.10.91.  The kernel is 2.6.9-1.667, Fedora 3.

Any ideas on this issue?

Thanx.

Aaron