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Top Forums Programming fread: segementation fault(coredump) w/o stdlib.h Post 302286635 by quintet on Wednesday 11th of February 2009 03:19:42 PM
Old 02-11-2009
Quote:
Originally Posted by shamrock
That's because malloc is declared in /usr/include/stdlib.h file and when you remove it from the code malloc is no longer defined and the program core dumps. Did your compiler not warn you of that.
Nope. I did not receive any warnings from the compiler. Moreover when i debug the program it did go through the malloc part without any issue but failed in the fread command.
 

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libmapmalloc(3LIB)						Interface Libraries						libmapmalloc(3LIB)

NAME
libmapmalloc - alternative memory allocator library SYNOPSIS
cc [ flag... ] file... -lmapmalloc [ library... ] #include <stdlib.h> DESCRIPTION
Functions in this library provide malloc routines that use mmap(2) instead of sbrk(2) for acquiring heap space. INTERFACES
The shared object libmapmalloc.so.1 provides the public interfaces defined below. See intro(3) for additional information on shared object interfaces. calloc cfree free mallinfo malloc mallopt memalign realloc valloc FILES
/usr/lib/libmapmalloc.so.1 shared object /usr/lib/64/libmapmalloc.so.1 64-bit shared object ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsl (32-bit) | +-----------------------------+-----------------------------+ | |SUNWcslx (64-bit) | +-----------------------------+-----------------------------+ |MT-Level |Safe | +-----------------------------+-----------------------------+ SEE ALSO
pvs(1), mmap(2), sbrk(2), intro(3), malloc(3C), malloc(3MALLOC), mapmalloc(3MALLOC), attributes(5) SunOS 5.10 22 May 2003 libmapmalloc(3LIB)
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