A Debian maintainer reported a few issues for us under X32 (X32 is not exactly X86, and its not exactly X64; see https://wiki.debian.org/X32Port).
We are having trouble fixing a few of the issues because GDB is available but doesn't quite work (see https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=799556). We have ASM code (both inline and block) that access arguments relative to ESP. For example: #define SSE2_key_schedule(Y,X) \ AS2( movq mm3, [X+7*8])\ ... SSE2_key_schedule(esp+4, esi) In the code above, the AS2 is just a two operand macro that abstracts away the differences between Intel, AT&T and MASM assembly. Under X32 with a non-corrupt stack, how would I access, say, what formerly was located at ESP+4? Thanks in advance. (Sorry about asking X32 questions here. According to https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=692042, it looks like they should got to debian-amd64@).
