Re: [Tinycc-devel] bug introduced by the latest changes

2014-01-11 Thread Thomas Preud'homme 
Le vendredi 10 janvier 2014, 17:17:53 Vincent Lefevre a écrit :
 After the latest changes in the mob branch, the following program
 segfaults on Linux/x86_64:
 
 #include stdio.h
 #include stdlib.h
 
 static char *val[] = { 1.0001@100 };
 
 int main (void)
 {
   printf (%s\n, val[0]);
   return 0;
 }
 
 Removing the #include stdlib.h line makes the bug disappear.

Can you try a git bisect to see what commit introduced this bug? I'm sorry, I 
won't be able to look at it before a few days though but the informations 
might help some others or myself in a few days in the worst case.

Best regards,

Thomas

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Re: [Tinycc-devel] bug introduced by the latest changes

2014-01-11 Thread Vincent Lefevre 
On 2014-01-11 22:39:28 +0800, Thomas Preud'homme wrote:
 Can you try a git bisect to see what commit introduced this bug?

The last two commits.

-- 
Vincent Lefèvre vinc...@vinc17.net - Web: http://www.vinc17.net/
100% accessible validated (X)HTML - Blog: http://www.vinc17.net/blog/
Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)

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Re: [Tinycc-devel] bug introduced by the latest changes

2014-01-11 Thread Michael Matz 

Hi,

On Sat, 11 Jan 2014, Vincent Lefevre wrote:


On 2014-01-11 22:39:28 +0800, Thomas Preud'homme wrote:

Can you try a git bisect to see what commit introduced this bug?


The last two commits.


Fixed in mob.

ciao,
Michael.

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[Tinycc-devel] bug introduced by the latest changes

2014-01-10 Thread Vincent Lefevre 
After the latest changes in the mob branch, the following program
segfaults on Linux/x86_64:

#include stdio.h
#include stdlib.h

static char *val[] = { 1.0001@100 };

int main (void)
{
  printf (%s\n, val[0]);
  return 0;
}

Removing the #include stdlib.h line makes the bug disappear.

-- 
Vincent Lefèvre vinc...@vinc17.net - Web: http://www.vinc17.net/
100% accessible validated (X)HTML - Blog: http://www.vinc17.net/blog/
Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)

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Re: [Tinycc-devel] bug introduced by the latest changes

2014-01-10 Thread Vincent Lefevre 
On 2014-01-10 17:17:53 +0100, Vincent Lefevre wrote:
 After the latest changes in the mob branch, the following program
 segfaults on Linux/x86_64:
 
 #include stdio.h
 #include stdlib.h
 
 static char *val[] = { 1.0001@100 };
 
 int main (void)
 {
   printf (%s\n, val[0]);
   return 0;
 }

And the backtrace with gdb, after compiling with tcc -g:

Program received signal SIGSEGV, Segmentation fault.
0x77a7a244 in _IO_vfprintf_internal (s=optimized out, 
format=optimized out, ap=ap@entry=0x7fffd568) at vfprintf.c:1649
1649vfprintf.c: No such file or directory.
(gdb) bt
#0  0x77a7a244 in _IO_vfprintf_internal (s=optimized out, 
format=optimized out, ap=ap@entry=0x7fffd568) at vfprintf.c:1649
#1  0x77a7ff49 in __printf (format=optimized out) at printf.c:34
#2  0x08048416 in main () at tcc-stdlib-segv.c:21

-- 
Vincent Lefèvre vinc...@vinc17.net - Web: http://www.vinc17.net/
100% accessible validated (X)HTML - Blog: http://www.vinc17.net/blog/
Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)

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