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Комп'ютери та електроніка Аудіо та домашній кінотеатр Додаткове музичне обладнання NXP CodeWarrior Development Studio Довідковий посібник

-ansi. NXP CodeWarrior Development Studio

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Chapter 3

Command-Line Options for Standard C

Conformance

This chapter explains the following command-line options for standard C conformance:

•

•

•

3.1 -ansi

Controls the ISO/IEC 9899-1990 ("C90") conformance options, overriding the given settings.

Syntax

-ansi keyword

The arguments for keyword

are: off urns ISO conformance off. Same as

-stdkeywords off -enum min -strict off. on | relaxed

Turns ISO conformance on in relaxed mode. Same as

-stdkeywords on -enum min -strict on strict

Turns ISO conformance on in strict mode. Same as

-stdkeywords on -enum int -strict on

CodeWarrior Development Studio for Power Architecture Processors Build Tools Reference Manual, Rev.

10.6, 02/2014

Freescale Semiconductor, Inc.

47

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Зміст

Compiler Architecture

Linker Architecture

Configuring Command-Line Tools

Setting CodeWarrior Environment Variables

Setting the PATH Environment Variable

Invoking Command-Line Tools

Parameter Formats

File Name Extensions

-Cpp_exceptions

-gcc_extensions

-relax_pointers

Naming Conventions

Specifying Source File Locations

Licensing Command-Line Options

-fullLicenseSearch

Diagnostic Command-Line Options

Library and Linking Command-Line Options

-ConvertArchiveToPartialLink

-resolved_partial

-sdatathreshold

-sdata2threshold

-tune_relocations

Code Generation Command-Line Options

-altivec_move_block

-ordered-fp-compares

-ppc_asm_to_vle

-readonlystrings

-spe_addl_vector

Optimization Command-Line Options

-far_near_addressing

-vle_enhance_merging

Assembly Language Statements

Statement Syntax

Non-Local Labels

Relocatable Labels

Case-Sensitive Identifiers

Integer Constants

Floating-Point Constants

Character Constants

Macro Directives

Conditional Preprocessor Directives

Compatibility Conditional Directives

.ifne if not equal

.iflt if less than

.ifle if less than or equal

.ifgt if greater than

.ifge if greater than or equal

Section Control Directives

Scope Control Directives

Symbol Definition Directives

Data Declaration Directives

Integer Directives

String Directives

Floating-Point Directives

Assembler Control Directives

Debugging Directives

Defining Macros

Macro Definition Syntax

Using the .macro Directive

Using Macro Arguments

Creating Unique Labels and Equates

Referring to the Number of Arguments

Invoking Macros

Using the #define Directive

GNU Compatibility

GNU Compatible Syntax option

Supported Extensions

Unsupported Extensions

Specifying Link Order in the IDE

Defining the Target's Memory Map

Defining Sections in the Output File

Associating Input Sections With Output Sections

Controlling Alignment

Specifying Memory Area Locations and Sizes

Creating Memory Gaps

Creating Symbols

Linker Command File Syntax

Linker Command File Operator Precedence and Support

Commands, Directives, and Keywords

. (location counter)

EXTERNAL_SYMBOL

INTERNAL_SYMBOL

NO_TRAILING_BSS_IN_BIN_FILES

Predefined Sections

Linking Binary Files

Using CodeWarrior IDE

Using Command-Line

Additional Small Data Sections

Linker Map File

Linker Generated Symbols

CodeWarrior Linker Command File (LCF)

Creating an LCF from Scratch

Relocating Code in ROM

Relocating Function in ROM

Placing Code in ROM

Create New ROM Segment

Create New ROM Section

Relocating Code and Data in Internal RAM

Placing Code and Data in RAM

Create New RAM Segment

Create New RAM Section

Relocating Code and Data in External MRAM

Unique LCF Examples

Configuring Linker File to Several ROM Blocks

Place the Library File in the LCF

Place Symbols in Specific Memory Location

How to Relocate Code in RAM

Linker Command File Commands

AGGRESSIVE_MERGE

AGGRESSIVE_MERGE_FILES

AGGRESSIVE_MERGE_SECTIONS

DO_NOT_MERGE_FILES

DO_NOT_MERGE_SECTIONS

SHORTEN_NAMES_FOR_TOR_101

Extensions to Standard C

Controlling Standard C Conformance

C++-style Comments

Unnamed Arguments

Extensions to the Preprocessor

Non-Standard Keywords

Declaring Variables by Address

Controlling C99 Extensions

Trailing Commas in Enumerations

Compound Literal Values

Designated Initializers

Predefined Symbol __func__

Implicit Return From main()

Non-constant Static Data Initialization

Variable Argument Macros

Extra C99 Keywords

C++-Style Comments

C++-Style Digraphs

Empty Arrays in Structures

Hexadecimal Floating-Point Constants

Variable-Length Arrays

Unsuffixed Decimal Literal Values

C99 Complex Data Types

Controlling GCC Extensions

Initializing Automatic Arrays and Structures

The sizeof() Operator

Statements in Expressions

Redefining Macros

The typeof() Operator

Void and Function Pointer Arithmetic

The __builtin_constant_p() Operator

Forward Declarations of Static Arrays

Omitted Operands in Conditional Expressions

The __builtin_expect() Operator

Void Return Statements

Minimum and Maximum Operators

C++ Compiler Performance

Precompiling C++ Source Code

Using the Instance Manager

Extensions to Standard C++

__PRETTY_FUNCTION__ Identifier

Standard and Non-Standard Template Parsing

Implementation-Defined Behavior

What Can be Precompiled

Using a Precompiled File

Creating a Precompiled File

Precompiling a File in the CodeWarrior IDE

Precompiling a File on the Command Line

Updating a Precompiled File Automatically

Preprocessor Scope in Precompiled Files

Interprocedural Analysis

Invoking Interprocedural Analysis

Function-Level Optimization

File-Level Optimization

Program-Level Optimization

Program-Level Requirements

Dependencies Among Source Files

Function and Top-level Variable Declarations

Type Definitions

Unnamed Structures and Enumerations in C

Intermediate Optimizations

Dead Code Elimination

Expression Simplification

Common Subexpression Elimination

Copy Propagation

Dead Store Elimination

Live Range Splitting

Loop-Invariant Code Motion

Strength Reduction

Choosing Which Functions to Inline

Inlining Techniques

Assembly Syntax

Specifying Inline Assembly Statements

Function-Level Inline Assembly

Statement-Level Inline Assembly

GCC - Style Inline Assembly

Branch Prediction

PC-Relative Addressing

Normal, Record, and Overflow Forms

Creating Statement Labels

Using the Preprocessor

Referring to Assembly, C, and C++ Variables

Using Local Variables and Arguments

Creating a Stack Frame

Referring to Variables in Instruction Operands

Referring to Variables in Memory

Referring to Registers

Referring to Labels

Using Variable Names as Memory Locations

Using Immediate Operands

Assembler Directives

Intrinsic Functions

Low-Level Processor Synchronization

Absolute Value Functions

Byte-Reversing Functions

Setting the Floating-Point Environment

Manipulating the Contents of a Variable or Register

Data Cache Manipulation

Buffer Manipulation

ABI Conformance

Data Representation

Character Types

AltiVec™ Data Types

Data Addressing

Alignment Attribute Syntax

Aligning a Variable Declaration

Alignment in a Structure Definition

Structure Member

Typedef Declaration

Small Data Area PIC/PID Support

Internal and External Segments and References

PIC/PID Linker Command File Directives

Linker-defined Symbols

Uses for SDA PIC/PID

Building an SDA PIC/PID Application

Linking Assembly Files

Modifications to the Section Pragma

Internal and External Addressing Modes

Specifying ROM addr_mode

Specifying RAM addr_mode

Variable Length Encoding

Processors With VLE Capability

Compiling VLE Instructions

Assembling VLE Instructions

Linking VLE Object Code

Building a ROM Image

Linking a ROM Image

ROM Image Addresses

Specifying A Single ROM Block

Specifying Several ROM Blocks

Specifying Jump Table Location

Specifying Constant Data Location

Activating EC++

Differences Between ISO C++ and EC++

File Operations

Exception Handling

Unsupported Language Features

EC++ Specifications

Language Related Issues

Library-Related Issues

Main Standard Libraries

Using the Main Standard Libraries

Choosing an MSL Library

Using Console I/O

Allocating Additional Heap Space

Third Party Standard Libraries

Embedded Warrior Library

Using the Embedded Warrior Libraries

EWL Naming Convention

How to Rebuild the EWL Libraries

Runtime Libraries

Required Libraries and Source Code Files

Allocating Additional Heap Space

Choosing a Runtime Library

Board Initialization Code

Syntax for Declaration Specifications

__declspec(never_inline)

Syntax for Attribute Specifications

__attribute__((deprecated))

__attribute__((force_export))

__attribute__((malloc))

__attribute__((noalias))

__attribute__((returns_twice))

__attribute__((unused))

__attribute__((used))

Syntax for Declaration Specifications

Declaration Specifications

__declspec(do_not_merge)

__declspec(final)

__declspec(force_export)

__declspec(interrupt)

__declspec(no_linker_opts)

__declspec(section name)

__declspec(vle_off)

__declspec(vle_on)

__declspec(weak)

__VERSION_NUM__

__embedded_cplusplus

__PRETTY_FUNCTION__

__PPCBROADWAY__

Processor Core Specific Macros

Checking Pragma Settings

Saving and Restoring Pragma Settings

Determining Which Settings Are Saved and Restored

Invalid Pragmas

ignore_oldstyle

only_std_keywords

require_prototypes

array_new_delete

defer_defarg_parsing

direct_destruction

inline_bottom_up

inline_bottom_up_once

inline_max_auto_size

inline_max_size

inline_max_total_size

no_conststringconv

no_static_dtors

old_friend_lookup

opt_classresults

parse_func_templ

parse_mfunc_templ

suppress_init_code

thread_safe_init

warn_hidevirtual

warn_no_explicit_virtual

warn_no_typename

warn_notinlined

warn_structclass

asmpoundcomment

asmsemicolcomment

dollar_identifiers

multibyteaware_preserve_literals

extended_errorcheck

showmessagenumber

show_error_filestack

suppress_warnings

warn_any_ptr_int_conv

warn_extracomma

warn_filenamecaps

warn_filenamecaps_system

warn_hiddenlocals

warn_illtokenpasting

warn_illunionmembers

warn_impl_f2i_conv

warn_impl_i2f_conv

warn_impl_s2u_conv

warn_implicitconv

warn_missingreturn

warn_no_side_effect

warn_pch_portability

warn_possunwant

warn_ptr_int_conv

warn_resultnotused

warn_undefmacro

warn_uninitializedvar

check_header_flags

fullpath_prepdump

msg_show_lineref

msg_show_realref

old_pragma_once

pragma_prepdump

precompile_target

simple_prepdump

aggressive_inline

dont_reuse_strings

explicit_zero_data

float_constants

readonly_strings

reverse_bitfields

store_object_files

global_optimizer

ipa_inline_max_auto_size

ipa_not_complete

load_store_elimination

opt_common_subs

opt_dead_assignments

opt_loop_invariants

opt_propagation

opt_strength_reduction

opt_strength_reduction_strict

opt_unroll_loops

opt_vectorize_loops

optimization_level

optimize_for_size

optimizewithasm

strictheaderchecking

Diagnostic Pragmas

incompatible_return_small_structs

incompatible_sfpe_double_params

Debugging Information Pragmas

dwarf2typedefchains

dwarf2lexblockcodeaddrcalc

Library and Linking Pragmas

Code generation Pragmas

alignment_metrowerks

altivec_codegen

altivec_pim_warnings

disable_registers

e500_floatingpoint

e500v2_floatingpoint

has8bytebitfields

legacy_struct_alignment

merge_float_consts

min_struct_align

misaligned_mem_access

no_register_save_helpers

ppc_lvxl_stvxl_errata

read_only_switch_tables

read_only_vtable_RTTI

vec2x32float_align_4

z4_16bit_cond_branch_errata_5116

z4_mtlr_se_rfi_errata_26553

Optimization Pragmas

aggressive_hoisting

c9x_alias_by_type

epilogue_helper_functions

fp_contract_aggressive

ipa_rescopes_globals

peephole_enable_16bit_load_store_inst

ppc_opt_defuse_mem_limit

ppc_unroll_instructions_limit

ppc_unroll_speculative

prologue_helper_functions

remove_frsp_aggressive

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