Rich Felker bdb0817599 improve i386 inline syscall asm on non-broken compilers ... we have to avoid using ebx unconditionally in asm constraints for i386, because gcc 3 and 4 and possibly other simplistic compilers (pcc?) implement PIC via making ebx a fixed-use register, and disallow its use for anything else. rather than hard-coding knowledge of which compilers work (at least gcc 5+ and clang), perform a configure test; this should give us the good codegen on any new compilers we don't yet know about. swapping ebx and edx is kept for 1- and 2-arg syscalls because it avoids having any spills/stack-frame at all in small functions. for 6-arg, if ebx is directly usable, the complex shuffling introduced in commit c8798ef974 can be avoided, and ebp can be loaded the same way ebx is in 5-arg syscalls for compilers that don't support direct use of ebx.		2019-05-11 19:44:21 -04:00
..
bits	add io_pgetevents and rseq syscall numbers from linux v4.18	2018-12-09 22:29:12 -05:00
atomic_arch.h	remove a_ctz_l from arch specific atomic_arch.h	2018-04-19 12:23:17 -04:00
crt_arch.h
pthread_arch.h	make thread-pointer-loading asm non-volatile	2018-10-16 14:11:46 -04:00
reloc.h	introduce new symbol-lookup-free rcrt1/dlstart stage chaining	2015-09-17 06:30:55 +00:00
syscall_arch.h	improve i386 inline syscall asm on non-broken compilers	2019-05-11 19:44:21 -04:00