[Buildroot] [buildroot 0001944]: gcc copiled by buildroot can not support "-gcov" feature.

[bugs at busybox.net]

A NOTE has been added to this issue. 
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http://busybox.net/bugs/view.php?id=1944 
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Reported By:                jacky_deng
Assigned To:                buildroot
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Project:                    buildroot
Issue ID:                   1944
Category:                   Standards Compliance
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     assigned
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Date Submitted:             01-20-2008 18:41 PST
Last Modified:              01-20-2008 19:12 PST
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Summary:                    gcc copiled by buildroot can not support "-gcov"
feature.
Description: 
I wanna check the code coverage in a system.So I do as the following steps
1. gcc -fprofile-arcs -ftest-coverage -lgcov -o test -g test.c
2. No error during compile the file period. The target file "test" and
"test.gcno" can be successfully generated.
3. Then I run the program $./test
Expect:
  The program can run successfuly and a file "test.gcda" would be created
automatically.
Actually:
  The program can run successfully, But the file test.gcda didn't be
created.


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---------------------------------------------------------------------- 
 jacky_deng - 01-20-08 18:45  
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The gcc compiled by buildroot. 

---------------------------------------------------------------------- 
 jacky_deng - 01-20-08 19:12  
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I use readelf to check the binary files compiled by "uclibc-gcc"

Expect:
$ readelf -a test |grep gcov_exit
    57: 08048a60  3254 FUNC    LOCAL  DEFAULT    3 gcov_exit
  The above binary is built in another linux workstation,use glibc-gcc.

Actually:
$ readelf -a test |grep gcov_exit
didn't find gcov_exit in the binary file.
  The above binary is built by the uclibc-gcc 

Issue History 
Date Modified   Username       Field                    Change               
====================================================================== 
01-20-08 18:41  jacky_deng     New Issue                                    
01-20-08 18:41  jacky_deng     Status                   new => assigned     
01-20-08 18:41  jacky_deng     Assigned To               => buildroot       
01-20-08 18:45  jacky_deng     Issue Monitored: jacky_deng                    
01-20-08 18:45  jacky_deng     Note Added: 0003459                          
01-20-08 19:12  jacky_deng     Note Added: 0003464                          
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