Bug 55698

Summary: floating point in ecos on i386 system
Product: [Retired] eCos Reporter: Need Real Name <rini>
Component: ecosconfigAssignee: Julian Smart <julians>
Status: CLOSED WONTFIX QA Contact: Julian Smart <julians>
Severity: medium Docs Contact:
Priority: medium    
Version: CVS   
Target Milestone: ---   
Target Release: ---   
Hardware: i386   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
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Clone Of: Environment:
Last Closed: 2003-06-20 16:04:14 UTC Type: ---
Regression: --- Mount Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Need Real Name 2001-11-05 08:04:39 UTC 
Description of Problem:
I have a problem using floats in a ecos prg. see the prg.
I use a downloaded floppy image to boot the pc. If i config my tree, where 
i build the samples against, with the following lines i have the problem:
ecosconfig pc
ecosconfig tree 
make

if i manualy disable the CYGHWR_HAL_I386_FPU_SWITCH_LAZY (user_value 0) 
the program works fine. 


int main(void)
{

char s[100];
float f;//=0.0123;

strcpy (s,"Rini van Zetten");

f=0.2;
printf("Hello, eCos world!, f= %f\n",f);

return 0;
}

before the line f=0.2; the value of s is of course "Rini van Zetten" but 
after that line the first 4 chars are changed.
Also if i comment out the char part the program crashes on the printf 
statement.


Version-Release number of selected component (if applicable):
dowloaded from cvs last week of october

How Reproducible:

see description

Steps to Reproduce:
1. 
2. 
3. 

Actual Results:

see description

Expected Results:


see description

Additional Information:
	
the problem is solved but in the email list Jonathan Larmour asked me to 
report it as a bug.
Comment 1 Alex Schuilenburg 2003-06-20 16:04:14 UTC 
This bug has moved to http://bugs.ecos.sourceware.org/show_bug.cgi?id=55698