> -----邮件原件----- > 发件人: Bruno Haible <br...@clisp.org> > 发送时间: 2021年9月4日 21:17 > 收件人: bug-gnulib@gnu.org > 抄送: Sun Haiyong <youb...@sina.com> > 主题: Re: [PATCH] stack-direction: Add support for loongarch CPU > > Hi, > > Sun Haiyong wrote: > > * m4/stack-direction.m4 (SV_STACK_DIRECTION): When the CPU is > loongarch, > > set "sv_cv_stack_direction" to "-1" . > > Thanks for the patch. Do you know a document which explains the ABI of this > architecture (I mean: register usage, max number of arguments passed in > registers, stack direction, stack alignment, etc.)? > Thanks.
> For the moment, I am only able to guess, based on [1] which says that > LoongArch is basically a clone of mips64 with different encoding of the > instructions. So, I've applied your patch. > > [1] > https://www.phoronix.com/scan.php?page=news_item&px=LoongArch-MIPS > -Copy-Kernel > About LoongArch, see the link: https://lore.kernel.org/linux-arch/20210903095213.797973-2-chenhuacai@loongs on.cn/T/#u > > 2021-09-04 Sun Haiyong <youb...@sina.com> (tiny change) > > sigsegv: Improve cross-compilation support for LoongArch CPU. > * m4/stack-direction.m4 (SV_STACK_DIRECTION): Assume the stack > grows > down on LoongArch. > > diff --git a/m4/stack-direction.m4 b/m4/stack-direction.m4 > index 93287254b..e682be97d 100644 > --- a/m4/stack-direction.m4 > +++ b/m4/stack-direction.m4 > @@ -1,4 +1,4 @@ > -# stack-direction.m4 serial 7 > +# stack-direction.m4 serial 8 > dnl Copyright (C) 2002-2021 Free Software Foundation, Inc. > dnl This file is free software, distributed under the terms of the GNU > dnl General Public License. As a special exception to the GNU General > @@ -32,6 +32,7 @@ AC_DEFUN([SV_STACK_DIRECTION], > i?86 | x86_64 | \ > i860 | \ > ia64 | \ > + loongarch* | \ > m32r | \ > m68* | \ > m88k | \ > >
