From 0a36956261c67d61def90e1aefeb6c46568ff167 Mon Sep 17 00:00:00 2001 From: Andreas Sandberg Date: Wed, 9 Jan 2019 14:50:27 +0000 Subject: sim-se: Refactor clone to avoid most ifdefs Some parts of clone are architecture dependent. In some cases, we are able to use architecture-specific helper functions or register aliases. However, there is still some architecture-specific that is protected by ifdefs in the common clone implementation. Move these architecture-specific bits to the architecture-specific OS class instead to avoid these ifdefs and make the code a bit more readable. Change-Id: Ia0903d738d0ba890863bddfa77e3b717db7f45de Signed-off-by: Andreas Sandberg Cc: Giacomo Travaglini Cc: Javier Setoain Cc: Brandon Potter Reviewed-on: https://gem5-review.googlesource.com/c/15435 Reviewed-by: Jason Lowe-Power Maintainer: Brandon Potter --- src/arch/alpha/linux/linux.hh | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'src/arch/alpha/linux') diff --git a/src/arch/alpha/linux/linux.hh b/src/arch/alpha/linux/linux.hh index cacb96bd3..3fd65679d 100644 --- a/src/arch/alpha/linux/linux.hh +++ b/src/arch/alpha/linux/linux.hh @@ -31,6 +31,7 @@ #ifndef __ALPHA_ALPHA_LINUX_LINUX_HH__ #define __ALPHA_ALPHA_LINUX_LINUX_HH__ +#include "arch/alpha/utility.hh" #include "kern/linux/linux.hh" /* AlphaLinux class contains static constants/definitions/misc. @@ -196,6 +197,17 @@ class AlphaLinux : public Linux // For futex system call static const unsigned TGT_EAGAIN = 35; static const unsigned TGT_EWOULDBLOCK = TGT_EAGAIN; + + static void + archClone(uint64_t flags, + Process *pp, Process *cp, + ThreadContext *ptc, ThreadContext *ctc, + uint64_t stack, uint64_t tls) + { + AlphaISA::copyMiscRegs(ptc, ctc); + if (stack) + ctc->setIntReg(AlphaISA::StackPointerReg, stack); + } }; #endif // __ALPHA_ALPHA_LINUX_LINUX_HH__ -- cgit v1.2.3