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Via File Syntax A.1 Overview of via files Via files are plain text files that contain command-line arguments and options to ARM development tools. You can use via files with all the ARM command-line tools, that is, you can specify a via file from the command line using the --via command-line option with: • armcc • armasm • armlink • fromelf • armar. See the documentation for the individual tool for more information. Note In general, you can use a via file to specify any command-line option to a tool, including --via. This means that you can call multiple nested via files from within a via file. This section includes: • Via file evaluation. A.1.1 Via file evaluation When a tool that supports via files is invoked it: 1. Replaces the first specified --via via_file argument with the sequence of argument words extracted from the via file, including recursively processing any nested --via commands in the via file. 2. Processes any subsequent --via via_file arguments in the same way, in the order they are presented. That is, via files are processed in the order you specify them, and each via file is processed completely including processing nested via files before processing the next via file. A-2 Copyright © 2007-2010 ARM. All rights reserved. ARM DUI 0348C Non-Confidential, ID101213
Via File Syntax A.2 Syntax Via files must conform to the following syntax rules: • A via file is a text file containing a sequence of words. Each word in the text file is converted into an argument string and passed to the tool. • Words are separated by whitespace, or the end of a line, except in delimited strings. For example: --c90 --strict (two words) --c90--strict (one word) • The end of a line is treated as whitespace. For example: --c90 --strict is equivalent to: --c90 --strict • Strings enclosed in quotation marks ("), or apostrophes (') are treated as a single word. Within a quoted word, an apostrophe is treated as an ordinary character. Within an apostrophe delimited word, a quotation mark is treated as an ordinary character. Quotation marks are used to delimit filenames or path names that contain spaces. For example: -I C:\My Project\includes (three words) -I "C:\My Project\includes" (two words) Apostrophes can be used to delimit words that contain quotes. For example: -DNAME='"RealView Compilation Tools"' (one word) • Characters enclosed in parentheses are treated as a single word. For example: --option(x, y, z) (one word) --option (x, y, z) (two words) • Within quoted or apostrophe delimited strings, you can use a backslash (\) character to escape the quote, apostrophe, and backslash characters. • A word that occurs immediately next to a delimited word is treated as a single word. For example: -I"C:\Project\includes" is treated as the single word: -IC:\Project\includes ARM DUI 0348C Copyright © 2007-2010 ARM. All rights reserved. A-3 ID101213 Non-Confidential,
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® RealView Compilation Tools Versi
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Product Status The information in t
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Contents RealView Compilation Tools
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Preface This preface introduces the
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Preface Appendix A Via File Syntax
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Preface Other publications The foll
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Chapter 1 Introduction This chapter
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Introduction 1.2 Source language mo
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Introduction 1.3 Language extension
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Introduction • Compiling a C sour
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Chapter 2 Compiler Command-line Opt
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Compiler Command-line Options 2.1.2
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Compiler Command-line Options Each
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Compiler Command-line Options Note
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Compiler Command-line Options • -
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Compiler Command-line Options Restr
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Compiler Command-line Options Defau
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Compiler Command-line Options Examp
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Compiler Command-line Options • a
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Compiler Command-line Options Synta
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Compiler Command-line Options • I
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Compiler Command-line Options See a
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Compiler Command-line Options Compi
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Compiler Command-line Options Selec
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Compiler Command-line Options • R
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Compiler Command-line Options Usage
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Compiler Command-line Options A num
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Compiler Command-line Options vfpv3
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Compiler Command-line Options The c
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Compiler Command-line Options #incl
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Compiler Command-line Options Error
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Compiler Command-line Options The i
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Compiler Command-line Options and a
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Compiler Command-line Options Error
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Chapter 3 Language Extensions This
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Language Extensions 3.1.2 #include_
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Language Extensions 3.2 C99 languag
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Language Extensions 3.3 C99 languag
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Language Extensions Restrictions Th
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Language Extensions static int y =
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Language Extensions 3.4.4 Dollar si
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Language Extensions 3.5 Standard C+
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Language Extensions Example 3-2 Lin
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Language Extensions 3.6 Standard C
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Language Extensions int counter __a
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Language Extensions 3.6.12 Structur
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Language Extensions 3.7 GNU languag
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Language Extensions 3.7.5 Character
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Language Extensions • You can use
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Language Extensions Errors The comp
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Chapter 4 Compiler-specific Feature
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Compiler-specific Features Usage __
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Compiler-specific Features Return v
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Compiler-specific Features Example
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Compiler-specific Features The func
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Compiler-specific Features Note The
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Compiler-specific Features Syntax _
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Compiler-specific Features See also
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Compiler-specific Features __weak v
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Compiler-specific Features When a c
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Compiler-specific Features Examples
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Compiler-specific Features Usage If
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Compiler-specific Features 4.3 Func
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Compiler-specific Features 4.3.2 __
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Compiler-specific Features Note Thi
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Compiler-specific Features 4.3.11 _
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Compiler-specific Features 4.4 Type
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Compiler-specific Features • Bit-
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Compiler-specific Features 4.5 Vari
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Compiler-specific Features In parti
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Compiler-specific Features 4.5.5 __
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Compiler-specific Features Note You
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Compiler-specific Features Default
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Compiler-specific Features • Chap
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Compiler-specific Features Where: t
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Compiler-specific Features This pra
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Compiler-specific Features • __at
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Compiler-specific Features Note Bot
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Compiler-specific Features 4.7 Inst
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Compiler-specific Features opcode2
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Compiler-specific Features Syntax v
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Compiler-specific Features Errors T
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Compiler-specific Features Syntax v
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Compiler-specific Features Restrict
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Compiler-specific Features Errors T
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Compiler-specific Features ptr poin
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Compiler-specific Features 4.7.44 A
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Compiler-specific Features Table 4-
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Compiler-specific Features 4.7.47 A
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Compiler-specific Features • __uh
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Compiler-specific Features • Para
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Page 415: Appendix A Via File Syntax This app
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Page 441 and 442: Appendix E Using NEON Support This
Page 443 and 444: Using NEON Support E.2 Vector data
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Using NEON Support int16x4_t lane);
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Using NEON Support // VST1.8 {d0},
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Using NEON Support uint64x1x2_t vld
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Using NEON Support float32x2x4_t vl
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Using NEON Support lane); // VLD2.8
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Using NEON Support // VLD4.16 {d0[0
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Using NEON Support // VST3.32 {d0,
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Using NEON Support // VST3.32 {d0[0
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Using NEON Support uint8x8_t vset_l
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Using NEON Support float32x2_t vmov
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Using NEON Support uint32x2_t vcvt_
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Using NEON Support // VMLA.I16 d0,
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Using NEON Support Vector long mult
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Using NEON Support Vector widening
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Using NEON Support int8x16_t vqabsq
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Using NEON Support Bitwise and int8
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Using NEON Support Bitwise Select N
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Using NEON Support E.3.31 Vector re
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