Curtis Taylor <cjt@xxxxxxxxxx> writes: > I have a case of g++ generating this instruction: > add $0xe,%esp > and creating a non 32bit aligned %esp. This is enabling a SIGSEGV in a > signal handler that expects the stack to be word aligned. Presumably there is going to be a pushw around there somewhere. gcc can create a misaligned stack temporarily but it shouldn't create one across a function call. If that is the case, you may be able to avoid the problem by using the -mno-push-args or -maccumulate-outgoing-args options. I agree that issuing this instruction violates the i386 ELF ABI, and if current mainline gcc does it that is a bug which should be fixed. Ian
