From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932612AbbGJPCH (ORCPT ); Fri, 10 Jul 2015 11:02:07 -0400 Received: from mailapp01.imgtec.com ([195.59.15.196]:53179 "EHLO mailapp01.imgtec.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933006AbbGJPBu (ORCPT ); Fri, 10 Jul 2015 11:01:50 -0400 From: Paul Burton To: CC: Matthew Fortune , Paul Burton , Michael Ellerman , , Richard Weinberger , "James Hogan" , Andy Lutomirski , "Ralf Baechle" , "Maciej W. Rozycki" , Andrew Morton Subject: [PATCH 03/16] MIPS: add offsets to sigcontext FP fields to struct mips_abi Date: Fri, 10 Jul 2015 16:00:12 +0100 Message-ID: <1436540426-10021-4-git-send-email-paul.burton@imgtec.com> X-Mailer: git-send-email 2.4.4 In-Reply-To: <1436540426-10021-1-git-send-email-paul.burton@imgtec.com> References: <1436540426-10021-1-git-send-email-paul.burton@imgtec.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.100.200.2] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add fields to struct mips_abi, which holds information regarding the kernel-userland ABI regarding signals, to specify the offsets to the FP related fields within the appropriate variant of struct sigcontext. Signed-off-by: Paul Burton --- arch/mips/include/asm/abi.h | 4 ++++ arch/mips/kernel/signal.c | 6 +++++- arch/mips/kernel/signal32.c | 6 +++++- arch/mips/kernel/signal_n32.c | 6 +++++- 4 files changed, 19 insertions(+), 3 deletions(-) diff --git a/arch/mips/include/asm/abi.h b/arch/mips/include/asm/abi.h index 7186bb5..37f8407 100644 --- a/arch/mips/include/asm/abi.h +++ b/arch/mips/include/asm/abi.h @@ -20,6 +20,10 @@ struct mips_abi { struct pt_regs *regs, sigset_t *set); const unsigned long rt_signal_return_offset; const unsigned long restart; + + unsigned off_sc_fpregs; + unsigned off_sc_fpc_csr; + unsigned off_sc_used_math; }; #endif /* _ASM_ABI_H */ diff --git a/arch/mips/kernel/signal.c b/arch/mips/kernel/signal.c index 796c7d8..ddf8318 100644 --- a/arch/mips/kernel/signal.c +++ b/arch/mips/kernel/signal.c @@ -521,7 +521,11 @@ struct mips_abi mips_abi = { .setup_rt_frame = setup_rt_frame, .rt_signal_return_offset = offsetof(struct mips_vdso, rt_signal_trampoline), - .restart = __NR_restart_syscall + .restart = __NR_restart_syscall, + + .off_sc_fpregs = offsetof(struct sigcontext, sc_fpregs), + .off_sc_fpc_csr = offsetof(struct sigcontext, sc_fpc_csr), + .off_sc_used_math = offsetof(struct sigcontext, sc_used_math), }; static void handle_signal(struct ksignal *ksig, struct pt_regs *regs) diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c index 19a7705..6b65658 100644 --- a/arch/mips/kernel/signal32.c +++ b/arch/mips/kernel/signal32.c @@ -587,7 +587,11 @@ struct mips_abi mips_abi_32 = { .setup_rt_frame = setup_rt_frame_32, .rt_signal_return_offset = offsetof(struct mips_vdso, o32_rt_signal_trampoline), - .restart = __NR_O32_restart_syscall + .restart = __NR_O32_restart_syscall, + + .off_sc_fpregs = offsetof(struct sigcontext32, sc_fpregs), + .off_sc_fpc_csr = offsetof(struct sigcontext32, sc_fpc_csr), + .off_sc_used_math = offsetof(struct sigcontext32, sc_used_math), }; static int signal32_init(void) diff --git a/arch/mips/kernel/signal_n32.c b/arch/mips/kernel/signal_n32.c index f1d4751..0d017fd 100644 --- a/arch/mips/kernel/signal_n32.c +++ b/arch/mips/kernel/signal_n32.c @@ -153,5 +153,9 @@ struct mips_abi mips_abi_n32 = { .setup_rt_frame = setup_rt_frame_n32, .rt_signal_return_offset = offsetof(struct mips_vdso, n32_rt_signal_trampoline), - .restart = __NR_N32_restart_syscall + .restart = __NR_N32_restart_syscall, + + .off_sc_fpregs = offsetof(struct sigcontext, sc_fpregs), + .off_sc_fpc_csr = offsetof(struct sigcontext, sc_fpc_csr), + .off_sc_used_math = offsetof(struct sigcontext, sc_used_math), }; -- 2.4.4