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Libraries and Floating Point Support Guide
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The ARM C and C++ libraries
Mandatory linkage with the C library
C and C++ runtime libraries
C and C++ library features
Library heap usage requirements of the ARM C and C
Compliance with the Application Binary Interface (
Increasing portability of object files to other CL
ARM C and C++ library directory structure
Selection of ARM C and C++ library variants based
Thumb C libraries
C++ and C libraries and the std namespace
ARM C libraries and multithreading
ARM C libraries and reentrant functions
ARM C libraries and thread-safe functions
Use of static data in the C libraries
Use of the __user_libspace static data area by the
C library functions to access subsections of the _
Re-implementation of legacy function __user_libspa
Management of locks in multithreaded applications
How to ensure re-implemented mutex functions are c
Using the ARM C library in a multithreaded environ
Thread safety in the ARM C library
Thread safety in the ARM C++ library
The floating-point status word in a multithreaded
Using the C library with an application
Using the C and C++ libraries with an application
Using $Sub$$ to mix semihosted and nonsemihosted I
Using the libraries in a nonsemihosting environmen
C++ exceptions in a non-semihosting environment
Direct semihosting C library function dependencies
Indirect semihosting C library function dependenci
C library API definitions for targeting a differen
Building an application without the C library
Creating an application as bare machine C without
Integer and floating-point compiler functions and
Bare machine integer C
Bare machine C with floating-point processing
Customized C library startup code and access to C
Program design when exploiting the C library
Using low-level functions when exploiting the C li
Using high-level functions when exploiting the C l
Using malloc() when exploiting the C library
Tailoring the C library to a new execution environ
How C and C++ programs use the library functions
Initialization of the execution environment and ex
C++ initialization, construction and destruction
Legacy support for C$$pi_ctorvec instead of .init_
Exceptions system initialization
Emergency buffer memory for exceptions
Library functions called from main()
Program exit and the assert macro
Assembler macros that tailor locale functions in t
Link time selection of the locale subsystem in the
ISO8859-1 implementation
Shift-JIS and UTF-8 implementation
Runtime selection of the locale subsystem in the C
Definition of locale data blocks in the C library
LC_CTYPE data block
LC_COLLATE data block
LC_MONETARY data block
LC_NUMERIC data block
LC_TIME data block
Modification of C library functions for error sign
Modification of memory management functions in the
Avoiding the heap and heap-using library functions
C library support for memory allocation functions
Heap1, standard heap implementation
Heap2, alternative heap implementation
Using a heap implementation from bare machine C
Stack pointer initialization and heap bounds
Defining __initial_sp, __heap_base and __heap_limi
Extending heap size at runtime
Legacy support for __user_initial_stackheap()
Tailoring input/output functions in the C and C++
Target dependencies on low-level functions in the
The C library printf family of functions
The C library scanf family of functions
Redefining low-level library functions to enable d
The C library functions fread(), fgets() and gets(
Re-implementing __backspace() in the C library
Re-implementing __backspacewc() in the C library
Redefining target-dependent system I/O functions i
Tailoring non-input/output C library functions
Real-time integer division in the ARM libraries
Selecting real-time division in the ARM libraries
How the ARM C library fulfills ISO C specification
mathlib error handling
ISO-compliant implementation of signals supported
ISO-compliant C library input/output characteristi
Standard C++ library implementation definition
C library functions and extensions
Persistence of C and C++ library names across rele
Link time selection of C and C++ libraries
Managing projects that have explicit C or C++ libr
Compiler generated and library-resident helper fun
C and C++ library naming conventions
Using macro__ARM_WCHAR_NO_IO to disable FILE decla
The ARM C micro-library
Floating-point support
Libraries and Floating Point Support Guide
Extending heap size at runtime
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| Home > The ARM C and C++ libraries > Extending heap size at runtime | |||
To enable the heap to extend into areas of memory other than
the region of memory that is specified when the program starts,
you can redefine the function __user_heap_extend().
__user_heap_extend() returns blocks of
memory for heap usage in extending the size of the heap.
See also- Concepts
- Reference
Using the ARM C and C++ Libraries and Floating-Point Support:
| Copyright © 2007-2008, 2011-2012 ARM. All rights reserved. | ARM DUI 0378D |
| Non-Confidential | ID062912 |
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| Home > The ARM C and C++ libraries > Extending heap size at runtime |
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