From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-la0-x22d.google.com ([2a00:1450:4010:c03::22d]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1VnwnB-0000Ol-H6 for barebox@lists.infradead.org; Tue, 03 Dec 2013 20:42:04 +0000 Received: by mail-la0-f45.google.com with SMTP id eh20so9357937lab.4 for ; Tue, 03 Dec 2013 12:41:39 -0800 (PST) From: Antony Pavlov Date: Wed, 4 Dec 2013 00:48:54 +0400 Message-Id: <1386103735-30029-2-git-send-email-antonynpavlov@gmail.com> In-Reply-To: <1386103735-30029-1-git-send-email-antonynpavlov@gmail.com> References: <1386103735-30029-1-git-send-email-antonynpavlov@gmail.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH 1/2] MIPS: add asm-offsets.h generation To: barebox@lists.infradead.org Signed-off-by: Antony Pavlov --- arch/mips/Makefile | 43 ++++++++++++++++++++++++++ arch/mips/include/asm/asm-offsets.h | 1 + arch/mips/include/asm/ptrace.h | 35 +++++++++++++++++++++ arch/mips/lib/asm-offsets.c | 61 +++++++++++++++++++++++++++++++++++++ include/linux/kbuild.h | 15 +++++++++ 5 files changed, 155 insertions(+) create mode 100644 arch/mips/include/asm/asm-offsets.h create mode 100644 arch/mips/include/asm/ptrace.h create mode 100644 arch/mips/lib/asm-offsets.c create mode 100644 include/linux/kbuild.h diff --git a/arch/mips/Makefile b/arch/mips/Makefile index dc0fe56..62e1acf 100644 --- a/arch/mips/Makefile +++ b/arch/mips/Makefile @@ -143,3 +143,46 @@ dtbs: scripts KBUILD_DTBS := dtbs KBUILD_IMAGE ?= $(KBUILD_BINARY) + +##### +# Generate asm-offsets.h +# + +offsets-file := include/generated/asm-offsets.h + +always += $(offsets-file) +targets += $(offsets-file) +targets += arch/$(SRCARCH)/lib/asm-offsets.s + +# Default sed regexp - multiline due to syntax constraints +define sed-y + "/^->/{s:->#\(.*\):/* \1 */:; \ + s:^->\([^ ]*\) [\$$#]*\([-0-9]*\) \(.*\):#define \1 \2 /* \3 */:; \ + s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \ + s:->::; p;}" +endef + +quiet_cmd_offsets = GEN $@ +define cmd_offsets + (set -e; \ + echo "#ifndef __ASM_OFFSETS_H__"; \ + echo "#define __ASM_OFFSETS_H__"; \ + echo "/*"; \ + echo " * DO NOT MODIFY."; \ + echo " *"; \ + echo " * This file was generated by Kbuild"; \ + echo " *"; \ + echo " */"; \ + echo ""; \ + sed -ne $(sed-y) $<; \ + echo ""; \ + echo "#endif" ) > $@ +endef + +# We use internal kbuild rules to avoid the "is up to date" message from make +arch/$(SRCARCH)/lib/asm-offsets.s: arch/$(SRCARCH)/lib/asm-offsets.c FORCE + $(Q)mkdir -p $(dir $@) + $(call if_changed_dep,cc_s_c) + +$(obj)/$(offsets-file): arch/$(SRCARCH)/lib/asm-offsets.s Makefile + $(call cmd,offsets) diff --git a/arch/mips/include/asm/asm-offsets.h b/arch/mips/include/asm/asm-offsets.h new file mode 100644 index 0000000..d370ee3 --- /dev/null +++ b/arch/mips/include/asm/asm-offsets.h @@ -0,0 +1 @@ +#include diff --git a/arch/mips/include/asm/ptrace.h b/arch/mips/include/asm/ptrace.h new file mode 100644 index 0000000..211834d --- /dev/null +++ b/arch/mips/include/asm/ptrace.h @@ -0,0 +1,35 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 1994, 95, 96, 97, 98, 99, 2000 by Ralf Baechle + * Copyright (C) 1999, 2000 Silicon Graphics, Inc. + */ + +#ifndef _ASM_PTRACE_H +#define _ASM_PTRACE_H + +/* + * This struct defines the way the registers are stored on the stack during an + * exception. As usual the registers k0/k1 aren't being saved. + */ +struct pt_regs { +#ifdef CONFIG_32BIT + /* Pad bytes for argument save space on the stack. */ + unsigned long pad0[6]; +#endif + + /* Saved main processor registers. */ + unsigned long regs[32]; + + /* Saved special registers. */ + unsigned long cp0_status; + unsigned long hi; + unsigned long lo; + unsigned long cp0_badvaddr; + unsigned long cp0_cause; + unsigned long cp0_epc; +} __attribute__ ((aligned (8))); + +#endif /* _ASM_PTRACE_H */ diff --git a/arch/mips/lib/asm-offsets.c b/arch/mips/lib/asm-offsets.c new file mode 100644 index 0000000..457bc8a --- /dev/null +++ b/arch/mips/lib/asm-offsets.c @@ -0,0 +1,61 @@ +/* + * offset.c: Calculate pt_regs and task_struct offsets. + * + * Copyright (C) 1996 David S. Miller + * Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003 Ralf Baechle + * Copyright (C) 1999, 2000 Silicon Graphics, Inc. + * + * Kevin Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com + * Copyright (C) 2000 MIPS Technologies, Inc. + */ + +#include +#include +#include + +void output_ptreg_defines(void); + +void output_ptreg_defines(void) +{ + COMMENT("MIPS pt_regs offsets."); + OFFSET(PT_R0, pt_regs, regs[0]); + OFFSET(PT_R1, pt_regs, regs[1]); + OFFSET(PT_R2, pt_regs, regs[2]); + OFFSET(PT_R3, pt_regs, regs[3]); + OFFSET(PT_R4, pt_regs, regs[4]); + OFFSET(PT_R5, pt_regs, regs[5]); + OFFSET(PT_R6, pt_regs, regs[6]); + OFFSET(PT_R7, pt_regs, regs[7]); + OFFSET(PT_R8, pt_regs, regs[8]); + OFFSET(PT_R9, pt_regs, regs[9]); + OFFSET(PT_R10, pt_regs, regs[10]); + OFFSET(PT_R11, pt_regs, regs[11]); + OFFSET(PT_R12, pt_regs, regs[12]); + OFFSET(PT_R13, pt_regs, regs[13]); + OFFSET(PT_R14, pt_regs, regs[14]); + OFFSET(PT_R15, pt_regs, regs[15]); + OFFSET(PT_R16, pt_regs, regs[16]); + OFFSET(PT_R17, pt_regs, regs[17]); + OFFSET(PT_R18, pt_regs, regs[18]); + OFFSET(PT_R19, pt_regs, regs[19]); + OFFSET(PT_R20, pt_regs, regs[20]); + OFFSET(PT_R21, pt_regs, regs[21]); + OFFSET(PT_R22, pt_regs, regs[22]); + OFFSET(PT_R23, pt_regs, regs[23]); + OFFSET(PT_R24, pt_regs, regs[24]); + OFFSET(PT_R25, pt_regs, regs[25]); + OFFSET(PT_R26, pt_regs, regs[26]); + OFFSET(PT_R27, pt_regs, regs[27]); + OFFSET(PT_R28, pt_regs, regs[28]); + OFFSET(PT_R29, pt_regs, regs[29]); + OFFSET(PT_R30, pt_regs, regs[30]); + OFFSET(PT_R31, pt_regs, regs[31]); + OFFSET(PT_LO, pt_regs, lo); + OFFSET(PT_HI, pt_regs, hi); + OFFSET(PT_EPC, pt_regs, cp0_epc); + OFFSET(PT_BVADDR, pt_regs, cp0_badvaddr); + OFFSET(PT_STATUS, pt_regs, cp0_status); + OFFSET(PT_CAUSE, pt_regs, cp0_cause); + DEFINE(PT_SIZE, sizeof(struct pt_regs)); + BLANK(); +} diff --git a/include/linux/kbuild.h b/include/linux/kbuild.h new file mode 100644 index 0000000..359d4a8 --- /dev/null +++ b/include/linux/kbuild.h @@ -0,0 +1,15 @@ +#ifndef __LINUX_KBUILD_H +#define __LINUX_KBUILD_H + +#define DEFINE(sym, val) \ + asm volatile("\n->" #sym " %0 " #val : : "i" (val)) + +#define BLANK() asm volatile("\n->" : : ) + +#define OFFSET(sym, str, mem) \ + DEFINE(sym, offsetof(struct str, mem)) + +#define COMMENT(x) \ + asm volatile("\n->#" x) + +#endif -- 1.8.4.4 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox