From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 101221 invoked by alias); 12 Sep 2018 04:16:44 -0000 Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-alpha-owner@sourceware.org Received: (qmail 100808 invoked by uid 89); 12 Sep 2018 04:15:56 -0000 Authentication-Results: sourceware.org; auth=none X-Spam-SWARE-Status: No, score=-26.9 required=5.0 tests=BAYES_00,FREEMAIL_FROM,GIT_PATCH_0,GIT_PATCH_1,GIT_PATCH_2,GIT_PATCH_3,RCVD_IN_DNSWL_NONE,SPF_PASS,TIME_LIMIT_EXCEEDED autolearn=unavailable version=3.3.2 spammy=Codes X-HELO: mail-oi0-f65.google.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=uuAKwVD8/T5LuM/ejafYA4GQwMJOVveQyfpxW2dVXY0=; b=GUm6ZaEKx4duMxnxCkoL13GvZBWER3fnacwRoSWaFHn5k4Jqkk4g+XqKo1t+w79hXM oNWKxooKo3qaEck3v0573lhGI/klVTIosDv2rZtHvGJPwsMcKFt0PY+zpqpOxNf7Act+ D+Scf0Oy7FsDF6Wc+8+SNV6wnfi8Q+ZysDjIkqcUFhu38F08RrwZRzdGrgo13O0ErSVh zGS1+xKtnwPv/NDR5qZCNSkybgDsoI9TXHegl9jZZhITCJt8hN4aSmcbzAeLkXBJKlT2 AXqkDJZRTFO134rdQOuvt3zTioWJCEh2Peps3ixrXkkHGalhfx9Gp6XNar7B0b9wtuPW uisA== MIME-Version: 1.0 In-Reply-To: <369062ae95df6648125b91354f707911cf8738de.1536720821.git.han_mao@c-sky.com> References: <369062ae95df6648125b91354f707911cf8738de.1536720821.git.han_mao@c-sky.com> From: "H.J. Lu" Date: Wed, 12 Sep 2018 04:16:00 -0000 Message-ID: Subject: Re: [PATCH v4 01/13] C-SKY: ABI related code To: Mao Han Cc: GNU C Library , c-sky_gcc_upstream@c-sky.com, gnu-csky@mentor.com Content-Type: text/plain; charset="UTF-8" X-SW-Source: 2018-09/txt/msg00138.txt.bz2 On Tue, Sep 11, 2018 at 7:56 PM, Mao Han wrote: > Codes in this patch contains lots of C-SKY ABI related code. They are > written accroding to the registers assgnments, relocations, assemblly > described in C-SKY CPU ABI Standards and C-SKY architercure user guide. > Available from: https://github.com/c-sky/csky-doc > This does not contain any linux related code. > > * sysdeps/csky/abiv2/__longjmp.S: New file. > * sysdeps/csky/abiv2/crti.S: Likewise. > * sysdeps/csky/abiv2/crtn.S: Likewise. > * sysdeps/csky/abiv2/csky-mcount.S: Likewise. > * sysdeps/csky/abiv2/dl-trampoline.S: Likewise. > * sysdeps/csky/abiv2/memcmp.S: Likewise. > * sysdeps/csky/abiv2/memcpy.S: Likewise. > * sysdeps/csky/abiv2/memmove.S: Likewise. > * sysdeps/csky/abiv2/memset.S: Likewise. > * sysdeps/csky/abiv2/setjmp.S: Likewise. > * sysdeps/csky/abiv2/start.S: Likewise. > * sysdeps/csky/abiv2/strcmp.S: Likewise. > * sysdeps/csky/abiv2/strcpy.S: Likewise. > * sysdeps/csky/abiv2/strlen.S: Likewise. > * sysdeps/csky/abort-instr.h: Likewise. > * sysdeps/csky/bits/endian.h: Likewise. > * sysdeps/csky/bits/link.h: Likewise. > * sysdeps/csky/bits/setjmp.h: Likewise. > * sysdeps/csky/bsd-_setjmp.S: Likewise. > * sysdeps/csky/bsd-setjmp.S: Likewise. > * sysdeps/csky/gccframe.h: Likewise. > * sysdeps/csky/jmpbuf-unwind.h: Likewise. > * sysdeps/csky/machine-gmon.h: Likewise. > * sysdeps/csky/memusage.h: Likewise. > * sysdeps/csky/stackinfo.h: Likewise. > * sysdeps/csky/sysdep.h: Likewise. > --- > sysdeps/csky/abiv2/__longjmp.S | 61 ++++++++++ > sysdeps/csky/abiv2/crti.S | 99 ++++++++++++++++ > sysdeps/csky/abiv2/crtn.S | 50 +++++++++ > sysdeps/csky/abiv2/csky-mcount.S | 72 ++++++++++++ > sysdeps/csky/abiv2/dl-trampoline.S | 50 +++++++++ > sysdeps/csky/abiv2/memcmp.S | 142 +++++++++++++++++++++++ > sysdeps/csky/abiv2/memcpy.S | 224 +++++++++++++++++++++++++++++++++++++ > sysdeps/csky/abiv2/memmove.S | 1 + > sysdeps/csky/abiv2/memset.S | 98 ++++++++++++++++ > sysdeps/csky/abiv2/setjmp.S | 77 +++++++++++++ > sysdeps/csky/abiv2/start.S | 109 ++++++++++++++++++ > sysdeps/csky/abiv2/strcmp.S | 156 ++++++++++++++++++++++++++ > sysdeps/csky/abiv2/strcpy.S | 127 +++++++++++++++++++++ > sysdeps/csky/abiv2/strlen.S | 102 +++++++++++++++++ > sysdeps/csky/abort-instr.h | 2 + > sysdeps/csky/bits/endian.h | 6 + > sysdeps/csky/bits/link.h | 55 +++++++++ > sysdeps/csky/bits/setjmp.h | 34 ++++++ > sysdeps/csky/bsd-_setjmp.S | 1 + > sysdeps/csky/bsd-setjmp.S | 1 + > sysdeps/csky/gccframe.h | 21 ++++ > sysdeps/csky/jmpbuf-unwind.h | 48 ++++++++ > sysdeps/csky/machine-gmon.h | 32 ++++++ > sysdeps/csky/memusage.h | 21 ++++ > sysdeps/csky/stackinfo.h | 29 +++++ > sysdeps/csky/sysdep.h | 88 +++++++++++++++ > 26 files changed, 1706 insertions(+) > create mode 100644 sysdeps/csky/abiv2/__longjmp.S > create mode 100644 sysdeps/csky/abiv2/crti.S > create mode 100644 sysdeps/csky/abiv2/crtn.S > create mode 100644 sysdeps/csky/abiv2/csky-mcount.S > create mode 100644 sysdeps/csky/abiv2/dl-trampoline.S > create mode 100644 sysdeps/csky/abiv2/memcmp.S > create mode 100644 sysdeps/csky/abiv2/memcpy.S > create mode 100644 sysdeps/csky/abiv2/memmove.S > create mode 100644 sysdeps/csky/abiv2/memset.S > create mode 100644 sysdeps/csky/abiv2/setjmp.S > create mode 100644 sysdeps/csky/abiv2/start.S > create mode 100644 sysdeps/csky/abiv2/strcmp.S > create mode 100644 sysdeps/csky/abiv2/strcpy.S > create mode 100644 sysdeps/csky/abiv2/strlen.S > create mode 100644 sysdeps/csky/abort-instr.h > create mode 100644 sysdeps/csky/bits/endian.h > create mode 100644 sysdeps/csky/bits/link.h > create mode 100644 sysdeps/csky/bits/setjmp.h > create mode 100644 sysdeps/csky/bsd-_setjmp.S > create mode 100644 sysdeps/csky/bsd-setjmp.S > create mode 100644 sysdeps/csky/gccframe.h > create mode 100644 sysdeps/csky/jmpbuf-unwind.h > create mode 100644 sysdeps/csky/machine-gmon.h > create mode 100644 sysdeps/csky/memusage.h > create mode 100644 sysdeps/csky/stackinfo.h > create mode 100644 sysdeps/csky/sysdep.h > > diff --git a/sysdeps/csky/abiv2/crti.S b/sysdeps/csky/abiv2/crti.S > new file mode 100644 > index 0000000..4526a9e > --- /dev/null > +++ b/sysdeps/csky/abiv2/crti.S > @@ -0,0 +1,99 @@ > +/* Special .init and .fini section support for C-SKY ABIV2. > + Copyright (C) 2018 Free Software Foundation, Inc. > + This file is part of the GNU C Library. > + > + The GNU C Library is free software; you can redistribute it and/or > + modify it under the terms of the GNU Lesser General Public > + License as published by the Free Software Foundation; either > + version 2.1 of the License, or (at your option) any later version. > + > + In addition to the permissions in the GNU Lesser General Public > + License, the Free Software Foundation gives you unlimited > + permission to link the compiled version of this file with other > + programs, and to distribute those programs without any restriction > + coming from the use of this file. (The GNU Lesser General Public > + License restrictions do apply in other respects; for example, they > + cover modification of the file, and distribution when not linked > + into another program.) > + > + Note that people who make modified versions of this file are not > + obligated to grant this special exception for their modified > + versions; it is their choice whether to do so. The GNU Lesser > + General Public License gives permission to release a modified > + version without this exception; this exception also makes it > + possible to release a modified version which carries forward this > + exception. > + > + The GNU C Library is distributed in the hope that it will be useful, > + but WITHOUT ANY WARRANTY; without even the implied warranty of > + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + Lesser General Public License for more details. > + > + You should have received a copy of the GNU Lesser General Public > + License along with the GNU C Library. If not, see > + . */ > + > +/* crti.S puts a function prologue at the beginning of the .init and > + .fini sections and defines global symbols for those addresses, so > + they can be called as functions. The symbols _init and _fini are > + magic and cause the linker to emit DT_INIT and DT_FINI. */ > + > +#include > +#include > + > +#ifndef PREINIT_FUNCTION > +# define PREINIT_FUNCTION __gmon_start__ > +#endif > + > +#ifndef PREINIT_FUNCTION_WEAK > +# define PREINIT_FUNCTION_WEAK 1 > +#endif > + > +#if PREINIT_FUNCTION_WEAK > + weak_extern (PREINIT_FUNCTION) > +#else > + .hidden PREINIT_FUNCTION > +#endif > + > + .section .init,"ax",@progbits > + .align 4 > + .globl _init > + .hidden _init Does C-SKY really need _init and _fini? -- H.J.