On 01/24/2013 04:02 PM, Jeffrey Walton wrote:
I have a small library that uses inline assembly to check OV/CY flags for both x86/x64 and ARM. x86/x64 uses FLAGS/EFLAGS, while ARM uses CPSR.
Please show some sample code.You can check the flags set by a preceding arithmetic/logical instruction in the *same* asm statement. You cannot use asm statements to access such flags set by other asm statements, or by code emitted by GCC.
-- Florian Weimer / Red Hat Product Security Team
