ARMCC

知识点

• 在keil中使用Using default compiler version5 / 6,其实实际调用的是当前ARMCC/ARMCLANG的最新版本编译器

ARMCLANG - Arm C/C++ (AC6) Compiler

Warnings

Control generation of diagnostics with the following settings:

• <unspecified> — adds no compiler control string. The behavior depends on compiler defaults or on options set on parent uVision group levels. Is the default setting.
• No Warnings — no diagnostics are shown. Sets the compiler control string -W.
• All Warnings — is the uVision default setting. Show all diagnostics (-Weverything) and excludes (-Wno-xxx) those listed in the compiler control string:
  -Weverything
  -Wno-reserved-id-macro
  -Wno-unused-macros
  -Wno-documentation-unknown-command
  -Wno-documentation
• AC5-like Warnings — show all warnings that ARM Compiler 5 would show. Suppresses the following warnings:
  -Wno-missing-variable-declarations
  -Wno-missing-prototypes
  -Wno-missing-noreturn
  -Wno-sign-conversion
  -Wnonportable-include-path
  -Wno-packed
  -Wno-reserved-id-macro
  -Wno-unused-macros
  -Wno-documentation-unknown-command
  -Wno-documentation
  -Wno-license-management
  -Wno-parentheses-equality
• MISRA compatible — show all warnings except those that conflict with MISRA rules. Adds the control strings:
  -Wno-covered-switch-default
  -Wno-unreachable-code-break