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MPLAB® XC32 C/C++ Compiler User's Guide for PIC32C/SAM MCUs
MPLAB® XC32 C/C++ Compiler User's Guide for PIC32C/SAM MCUs
  1. Home
  2. 3 How To's
  3. 3.5 Understanding the Compilation Process
  4. 3.5.11 How Can I Tell How Big a Function Is?

  • Notice to Development Tools Customers
  • 1 Preface
  • 2 Compiler Overview
  • 3 How To's
    • 3.1 Installing and Activating the Compiler
    • 3.2 Invoking the Compiler
    • 3.3 Writing Source Code
    • 3.4 Getting My Application To Do What I Want
    • 3.5 Understanding the Compilation Process
      • 3.5.1 What’s the Difference Between the Free and PRO Modes?
      • 3.5.2 How Can I Make My Code Smaller?
      • 3.5.3 How Can I Reduce RAM Usage?
      • 3.5.4 How Can I Make My Code Faster?
      • 3.5.5 How Does the Compiler Place Everything in Memory?
      • 3.5.6 How Can I Make My Interrupt Routine Faster?
      • 3.5.7 How Big Can C Variables Be?
      • 3.5.8 What Optimizations Will Be Applied to My Code?
      • 3.5.9 What Devices are Supported by the Compiler?
      • 3.5.10 How Do I Know What Code the Compiler Is Producing?
      • 3.5.11 How Can I Tell How Big a Function Is?
      • 3.5.12 How Can I Find Stack Usage Information For Each Function of My Program?
      • 3.5.13 How Do I Know What Resources Are Being Used by Each Function?
      • 3.5.14 How Do I Find Out Where Variables and Functions Have Been Positioned?
      • 3.5.15 Why are Some Objects Positioned into Memory that I Reserved?
      • 3.5.16 How Do I Know How Much Memory Is Still Available?
      • 3.5.17 How Do I Use Library Files In My Project?
      • 3.5.18 How Do I Customize the C Runtime Startup Code?
      • 3.5.19 How Do I Stop My Project's Checksum From Changing?
    • 3.6 Fixing Code That Does Not Work
  • 4 XC32 Toolchain and MPLAB X IDE
  • 5 Command-line Driver
  • 6 C Standard Issues
  • 7 Device-Related Features
  • 8 Supported Data Types and Variables
  • 9 Memory Allocation and Access
  • 10 Chip-Level Security and Arm® TrustZone® Technology
  • 11 Floating-point Support
  • 12 Fixed-Point Arithmetic Support
  • 13 Operators and Statements
  • 14 Register Usage
  • 15 Stack
  • 16 Functions
  • 17 Interrupts
  • 18 Main, Runtime Start-up and Reset
  • 19 Libraries
  • 20 Mixing C/C++ and Assembly Language
  • 21 Optimizations
  • 22 Preprocessing
  • 23 Linking Programs
  • 24 Implementation-Defined Behavior
  • 25 C++ Implementation-Defined Behavior
  • 26 Built-in Functions
  • 27 ASCII Character Set
  • 28 Document Revision History
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3.5.11 How Can I Tell How Big a Function Is?

This size of a function (the amount of assembly code generated for that function) can be determined from the assembly list file. See 3.5.10 How Do I Know What Code the Compiler Is Producing? for more on creating an assembly listing file.

The online versions of the documents are provided as a courtesy. Verify all content and data in the device’s PDF documentation found on the device product page.

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