Hello together,
We have to make our own implementation of malloc() under Linux. Does
anybody can give me a hint where to start?
Our implementation should only work under Linux.
Thanks
Karsten
49  23175 
Karsten Jung wrote: Hello together,
We have to make our own implementation of malloc() under Linux. Does
anybody can give me a hint where to start?
libc? <www.gnu.org/software/libc/>
Our implementation should only work under Linux.
Karsten Jung wrote: Hello together,
We have to make our own implementation of malloc() under Linux. Does
anybody can give me a hint where to start?
Our implementation should only work under Linux.
Read the glibc code (if "pollution" from LGPL code is not a problem) and
ask on a Linux group, remembering that you will have to write your own
free and realloc code, and you have to deal with the issue of whether
other library routines are calling your malloc or the standard one.
Personally I would not bother without a *very* good reason (which might
exist).
You can't write a malloc routine in standard C which might be part of
why it is in the standard library, hence the suggestion of asking in a
Linux group.
--
Flash Gordon, living in interesting times.
Web site - http://home.flash-gordon.me.uk/
comp.lang.c posting guidelines and intro: http://clc-wiki.net/wiki/Intro_to_clc
Flash Gordon <sp**@flash-gordon.me.uk> writes: You can't write a malloc routine in standard C which might be part of
why it is in the standard library, hence the suggestion of asking in a
Linux group.
What you *can* do though is statically allocate a memory buffer, then
allocate out of that with your own "malloc".
--
John Devereux
Read C Programming Kerninghan & Ritchie you will get the idea.
Haider wrote: Read C Programming Kerninghan & Ritchie you will get the idea.
Get the idea about what? Please provide context when responding, there
is no guarantee that people can see the post you are replying to.
In any case, last time I looked I'm sure that K&R did not describe how
to implement malloc which is what the subject line of this thread is..
--
Flash Gordon, living in interesting times.
Web site - http://home.flash-gordon.me.uk/
comp.lang.c posting guidelines and intro: http://clc-wiki.net/wiki/Intro_to_clc
John Devereux wrote: Flash Gordon <sp**@flash-gordon.me.uk> writes:
You can't write a malloc routine in standard C which might be part of
why it is in the standard library, hence the suggestion of asking in a
Linux group.
What you *can* do though is statically allocate a memory buffer, then
allocate out of that with your own "malloc".
True, as long as you call is something other than malloc ;-)
It all depends on what the OP actually wants to achieve.
--
Flash Gordon, living in interesting times.
Web site - http://home.flash-gordon.me.uk/
comp.lang.c posting guidelines and intro: http://clc-wiki.net/wiki/Intro_to_clc
Flash Gordon said: Haider wrote: Read C Programming Kerninghan & Ritchie you will get the idea.
Get the idea about what? Please provide context when responding, there
is no guarantee that people can see the post you are replying to.
In any case, last time I looked I'm sure that K&R did not describe how
to implement malloc which is what the subject line of this thread is..
See Chapter 8, specifically section 8.7.
--
Richard Heathfield
"Usenet is a strange place" - dmr 29/7/1999 http://www.cpax.org.uk
email: rjh at above domain (but drop the www, obviously)
In article <ju************ @news.flash-gordon.me.uk>,
Flash Gordon <sp**@flash-gordon.me.uk> wrote: Read C Programming Kerninghan & Ritchie you will get the idea.
Get the idea about what? Please provide context when responding, there
is no guarantee that people can see the post you are replying to.
It's a good answer to almost every on-topic question in comp.lang.c,
so the context doesn't matter :-)
In any case, last time I looked I'm sure that K&R did not describe how
to implement malloc which is what the subject line of this thread is..
It describes the implementation of a "rudimentar y" storage allocator
as an example in the section on Address Arithmetic (5.4).
-- Richard
Richard Tobin wrote: In article <ju************ @news.flash-gordon.me.uk>,
Flash Gordon <sp**@flash-gordon.me.uk> wrote:
Read C Programming Kerninghan & Ritchie you will get the idea. Get the idea about what? Please provide context when responding, there
is no guarantee that people can see the post you are replying to.
It's a good answer to almost every on-topic question in comp.lang.c,
so the context doesn't matter :-)
The standard and the FAQ are better answers ;-)
In any case, last time I looked I'm sure that K&R did not describe how
to implement malloc which is what the subject line of this thread is..
It describes the implementation of a "rudimentar y" storage allocator
as an example in the section on Address Arithmetic (5.4).
My reply was still technically accurate, I was sure of what I stated. It
just happens that I was wrong to be sure of it ;-)
--
Flash Gordon, living in interesting times.
Web site - http://home.flash-gordon.me.uk/
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