From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Mon, 26 Mar 2007 14:49:20 +0100 (BST) Received: from rwcrmhc11.comcast.net ([204.127.192.81]:34251 "EHLO rwcrmhc11.comcast.net") by ftp.linux-mips.org with ESMTP id S20022801AbXCZNtP (ORCPT ); Mon, 26 Mar 2007 14:49:15 +0100 Received: from [192.168.1.4] (c-69-251-93-234.hsd1.md.comcast.net[69.251.93.234]) by comcast.net (rwcrmhc11) with ESMTP id <20070326134813m11004cq4he>; Mon, 26 Mar 2007 13:48:14 +0000 Message-ID: <4607CF1D.50904@gentoo.org> Date: Mon, 26 Mar 2007 09:48:13 -0400 From: Kumba User-Agent: Thunderbird 2.0b2 (Windows/20070116) MIME-Version: 1.0 To: Atsushi Nemoto CC: linux-mips@linux-mips.org, ths@networkno.de, ralf@linux-mips.org Subject: Re: [PATCH]: Remove CONFIG_BUILD_ELF64 entirely References: <4606AA74.3070907@gentoo.org> <20070326.020705.63742150.anemo@mba.ocn.ne.jp> <4606C063.1030802@gentoo.org> <20070326.193641.15269037.nemoto@toshiba-tops.co.jp> In-Reply-To: <20070326.193641.15269037.nemoto@toshiba-tops.co.jp> Content-Type: multipart/mixed; boundary="------------040102000707030204010708" Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 14692 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: kumba@gentoo.org Precedence: bulk X-list: linux-mips This is a multi-part message in MIME format. --------------040102000707030204010708 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Atsushi Nemoto wrote: > It looks very strange. "lui k1, %hi(kernelsp)" should be enough for > the -msym32 kernel. What is a version of binutils and gcc you are using? > > And could you show me disassembled list of handle_int (or some other > rountines using get_saved_sp) of failed kernel? > > If you were using gcc 3.x, does this fix work for you? > > #if defined(CONFIG_32BIT) || (defined(KBUILD_64BIT_SYM32) && __GNUC__ >= 4) > lui k1, %hi(kernelsp) > #else # mips64-unknown-linux-gnu-ld --version GNU ld version 2.16.1 # mips64-unknown-linux-gnu-gcc --version mips64-unknown-linux-gnu-gcc (GCC) 4.1.1 (Gentoo 4.1.1-r3) And the disassembly of vmlinux.32 for the handle_int function is attached. I haven't built a kernel w/ gcc-3.x for some time, probably last time being when I was chasing down the strange funkiness in my Octane's userland in 2.6.19. --Kumba -- Gentoo/MIPS Team Lead "Such is oft the course of deeds that move the wheels of the world: small hands do them because they must, while the eyes of the great are elsewhere." --Elrond --------------040102000707030204010708 Content-Type: text/plain; name="vmlnx-26204-dis-hi.txt" Content-Transfer-Encoding: 7bit Content-Disposition: inline; filename="vmlnx-26204-dis-hi.txt" 80006ac0 : 80006ac0: 401a6000 mfc0 k0,$12 80006ac4: 001ad0c0 sll k0,k0,0x3 80006ac8: 07400007 bltz k0,80006ae8 80006acc: 03a0d82d move k1,sp 80006ad0: 3c1b0000 lui k1,0x0 80006ad4: 677b0000 daddiu k1,k1,0 80006ad8: 001bdc38 dsll k1,k1,0x10 80006adc: 677b8047 daddiu k1,k1,-32697 80006ae0: 001bdc38 dsll k1,k1,0x10 80006ae4: df7b5008 ld k1,20488(k1) 80006ae8: 03a0d02d move k0,sp 80006aec: 677dfed0 daddiu sp,k1,-304 80006af0: ffba00e8 sd k0,232(sp) 80006af4: ffa30018 sd v1,24(sp) 80006af8: ffa00000 sd zero,0(sp) 80006afc: 40036000 mfc0 v1,$12 80006b00: ffa20010 sd v0,16(sp) 80006b04: ffa30100 sd v1,256(sp) 80006b08: ffa40020 sd a0,32(sp) 80006b0c: 40036800 mfc0 v1,$13 80006b10: ffa50028 sd a1,40(sp) 80006b14: ffa30120 sd v1,288(sp) 80006b18: ffa60030 sd a2,48(sp) 80006b1c: 40237000 dmfc0 v1,$14 80006b20: ffa70038 sd a3,56(sp) 80006b24: ffa80040 sd t0,64(sp) 80006b28: ffa90048 sd t1,72(sp) 80006b2c: ffa30128 sd v1,296(sp) 80006b30: ffb900c8 sd t9,200(sp) 80006b34: ffbc00e0 sd gp,224(sp) 80006b38: ffbf00f8 sd ra,248(sp) 80006b3c: 37bc3fff ori gp,sp,0x3fff 80006b40: 3b9c3fff xori gp,gp,0x3fff 80006b44: ffa10008 sd at,8(sp) 80006b48: 00001810 mfhi v1 80006b4c: ffa30108 sd v1,264(sp) 80006b50: 00001812 mflo v1 80006b54: ffaa0050 sd t2,80(sp) 80006b58: ffab0058 sd t3,88(sp) 80006b5c: ffa30110 sd v1,272(sp) 80006b60: ffac0060 sd t4,96(sp) 80006b64: ffad0068 sd t5,104(sp) 80006b68: ffae0070 sd t6,112(sp) 80006b6c: ffaf0078 sd t7,120(sp) 80006b70: ffb800c0 sd t8,192(sp) 80006b74: ffb00080 sd s0,128(sp) 80006b78: ffb10088 sd s1,136(sp) 80006b7c: ffb20090 sd s2,144(sp) 80006b80: ffb30098 sd s3,152(sp) 80006b84: ffb400a0 sd s4,160(sp) 80006b88: ffb500a8 sd s5,168(sp) 80006b8c: ffb600b0 sd s6,176(sp) 80006b90: ffb700b8 sd s7,184(sp) 80006b94: ffbe00f0 sd s8,240(sp) 80006b98: 400c6000 mfc0 t4,$12 80006b9c: 3c0d1000 lui t5,0x1000 80006ba0: 35ad001f ori t5,t5,0x1f 80006ba4: 018d6025 or t4,t4,t5 80006ba8: 398c001f xori t4,t4,0x1f 80006bac: 408c6000 mtc0 t4,$12 ... 80006bbc: df900058 ld s0,88(gp) 80006bc0: ff9d0058 sd sp,88(gp) 80006bc4: 3c1f8000 lui ra,0x8000 80006bc8: 0800154e j 80005538 80006bcc: 67ff68a0 daddiu ra,ra,26784 --------------040102000707030204010708--