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Re: Using standard malloc()
- From: Balasaravanan P <pbalasaravanan at gmail dot com>
- To: Balasaravanan P <pbalasaravanan at gmail dot com>, ecos-discuss at sources dot redhat dot com
- Date: Thu, 12 May 2005 10:38:50 +0530
- Subject: Re: [ECOS] Using standard malloc()
- References: <122f850005051023046ec45ca3@mail.gmail.com> <20050511204245.GX31731@lunn.ch>
- Reply-to: Balasaravanan P <pbalasaravanan at gmail dot com>
Hi Andrew,
Thanks for the reply.
I am using MIPS 4kc processor.
I also tried enabling "CYGBLD_ISO_MALLOC_HEADER" but could give correct value.
I have pasted the ecosconfig export ecm file below.
=========================================
cdl_savefile_version 1;
cdl_savefile_command cdl_savefile_version {};
cdl_savefile_command cdl_savefile_command {};
cdl_savefile_command cdl_configuration { description hardware template
package };
cdl_savefile_command cdl_package { value_source user_value
wizard_value inferred_value };
cdl_savefile_command cdl_component { value_source user_value
wizard_value inferred_value };
cdl_savefile_command cdl_option { value_source user_value wizard_value
inferred_value };
cdl_savefile_command cdl_interface { value_source user_value
wizard_value inferred_value };
cdl_configuration eCos {
description "" ;
hardware mips32_4kc ;
template kernel ;
package -hardware CYGPKG_HAL_MIPS v2_0 ;
package -hardware CYGPKG_HAL_MIPS_MIPS32 v2_0 ;
package -hardware CYGPKG_HAL_MIPS v2_0 ;
package CYGPKG_HAL v2_0 ;
package CYGPKG_IO v2_0 ;
package CYGPKG_IO_SERIAL v2_0 ;
package CYGPKG_INFRA v2_0 ;
package CYGPKG_KERNEL v2_0 ;
package CYGPKG_ERROR v2_0 ;
package CYGPKG_MEMALLOC v2_0 ;
package CYGPKG_ISOINFRA v2_0 ;
};
cdl_option CYGFUN_HAL_COMMON_KERNEL_SUPPORT {
user_value 1
};
cdl_option CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK {
user_value 0
};
cdl_option CYGHWR_HAL_MIPS_MIPS32_CORE {
user_value 4Kc
};
cdl_component CYGSEM_KERNEL_SCHED_TIMESLICE {
user_value 1
};
cdl_component CYGPKG_KERNEL_INSTRUMENT {
user_value 0
};
cdl_option CYGDBG_KERNEL_INSTRUMENT_SMP {
user_value 0
};
cdl_component CYGDBG_KERNEL_INSTRUMENT_MSGS {
user_value 0
};
cdl_option CYGSEM_MEMALLOC_ALLOCATOR_FIXED_THREADAWARE {
user_value 0
};
cdl_option CYGSEM_MEMALLOC_ALLOCATOR_VARIABLE_THREADAWARE {
user_value 0
};
cdl_option CYGSEM_MEMALLOC_ALLOCATOR_VARIABLE_COALESCE {
user_value 0
};
cdl_option CYGBLD_MEMALLOC_MALLOC_IMPLEMENTATION_HEADER {
user_value <cyg/memalloc/dlmalloc.hxx>
};
cdl_option CYGIMP_MEMALLOC_MALLOC_VARIABLE_SIMPLE {
user_value 0
};
cdl_option CYGIMP_MEMALLOC_MALLOC_DLMALLOC {
user_value 1
};
cdl_option CYGBLD_ISO_ERRNO_CODES_HEADER {
inferred_value 1 <cyg/error/codes.h>
};
cdl_option CYGBLD_ISO_ERRNO_HEADER {
inferred_value 1 <cyg/error/errno.h>
};
cdl_option CYGBLD_ISO_RAND_HEADER {
user_value 0 0
};
cdl_option CYGBLD_ISO_MALLOC_HEADER {
user_value 0 0
};
cdl_option CYGBLD_ISO_STDLIB_SYSTEM_HEADER {
user_value 0 0
};
cdl_option CYGBLD_ISO_STRERROR_HEADER {
inferred_value 1 <cyg/error/strerror.h>
};
Best Regards,
Bala.
On 5/12/05, Andrew Lunn <andrew@lunn.ch> wrote:
> On Wed, May 11, 2005 at 11:34:30AM +0530, Balasaravanan P wrote:
> > Hi,
> >
> > I am writing an abstraction layer for an existing application this
> > requires me to use malloc to create threads.
> >
> > I tried using the standard LIBC malloc which returns NULL. I tried
> > printing the mallinfo structure and it shows 0 for all its members.
> >
> > Is there any other way to use standard malloc or am I missing any
> > configuration steps.
>
> You are missing something somewhere. malloc should work. What is the
> target and the configuration? Do an ecosconfig export and post the
> result.
>
> Andrew
>
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