From owner-cvs-src-old@FreeBSD.ORG Sun May 23 18:33:38 2010 Return-Path: Delivered-To: cvs-src-old@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 9566A106566B for ; Sun, 23 May 2010 18:33:38 +0000 (UTC) (envelope-from kib@FreeBSD.org) Received: from repoman.freebsd.org (unknown [IPv6:2001:4f8:fff6::29]) by mx1.freebsd.org (Postfix) with ESMTP id 7FCCB8FC13 for ; Sun, 23 May 2010 18:33:38 +0000 (UTC) Received: from repoman.freebsd.org (localhost [127.0.0.1]) by repoman.freebsd.org (8.14.3/8.14.3) with ESMTP id o4NIXcNT081888 for ; Sun, 23 May 2010 18:33:38 GMT (envelope-from kib@repoman.freebsd.org) Received: (from svn2cvs@localhost) by repoman.freebsd.org (8.14.3/8.14.3/Submit) id o4NIXcDK081887 for cvs-src-old@freebsd.org; Sun, 23 May 2010 18:33:38 GMT (envelope-from kib@repoman.freebsd.org) Message-Id: <201005231833.o4NIXcDK081887@repoman.freebsd.org> X-Authentication-Warning: repoman.freebsd.org: svn2cvs set sender to kib@repoman.freebsd.org using -f From: Konstantin Belousov Date: Sun, 23 May 2010 18:32:02 +0000 (UTC) To: cvs-src-old@freebsd.org X-FreeBSD-CVS-Branch: HEAD Subject: cvs commit: src/sys/amd64/amd64 elf_machdep.c trap.c src/sys/amd64/ia32 ia32_syscall.c src/sys/amd64/include proc.h src/sys/amd64/linux32 linux32_sysvec.c src/sys/arm/arm elf_machdep.c trap.c src/sys/cddl/dev/systrace systrace.c ... X-BeenThere: cvs-src-old@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: **OBSOLETE** CVS commit messages for the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 23 May 2010 18:33:38 -0000 kib 2010-05-23 18:32:02 UTC FreeBSD src repository Modified files: sys/amd64/amd64 elf_machdep.c trap.c sys/amd64/ia32 ia32_syscall.c sys/amd64/include proc.h sys/amd64/linux32 linux32_sysvec.c sys/arm/arm elf_machdep.c trap.c sys/cddl/dev/systrace systrace.c sys/compat/ia32 ia32_sysvec.c ia32_util.h sys/compat/svr4 svr4_sysvec.c sys/conf files sys/i386/i386 elf_machdep.c trap.c sys/i386/ibcs2 ibcs2_sysvec.c sys/i386/include proc.h sys/i386/linux linux_sysvec.c sys/ia64/ia32 ia32_trap.c sys/ia64/ia64 elf_machdep.c trap.c sys/ia64/include proc.h sys/kern imgact_aout.c init_main.c kern_exec.c kern_sig.c subr_trap.c sys_process.c sys/mips/mips elf64_machdep.c elf_machdep.c trap.c sys/powerpc/aim trap.c sys/powerpc/booke trap.c sys/powerpc/include proc.h sys/powerpc/powerpc elf_machdep.c sys/sparc64/include proc.h sys/sparc64/sparc64 elf_machdep.c trap.c sys/sun4v/include proc.h sys/sun4v/sun4v trap.c sys/sys proc.h ptrace.h sysent.h Log: SVN rev 208453 on 2010-05-23 18:32:02Z by kib Reorganize syscall entry and leave handling. Extend struct sysvec with three new elements: sv_fetch_syscall_args - the method to fetch syscall arguments from usermode into struct syscall_args. The structure is machine-depended (this might be reconsidered after all architectures are converted). sv_set_syscall_retval - the method to set a return value for usermode from the syscall. It is a generalization of cpu_set_syscall_retval(9) to allow ABIs to override the way to set a return value. sv_syscallnames - the table of syscall names. Use sv_set_syscall_retval in kern_sigsuspend() instead of hardcoding the call to cpu_set_syscall_retval(). The new functions syscallenter(9) and syscallret(9) are provided that use sv_*syscall* pointers and contain the common repeated code from the syscall() implementations for the architecture-specific syscall trap handlers. Syscallenter() fetches arguments, calls syscall implementation from ABI sysent table, and set up return frame. The end of syscall bookkeeping is done by syscallret(). Take advantage of single place for MI syscall handling code and implement ptrace_lwpinfo pl_flags PL_FLAG_SCE, PL_FLAG_SCX and PL_FLAG_EXEC. The SCE and SCX flags notify the debugger that the thread is stopped at syscall entry or return point respectively. The EXEC flag augments SCX and notifies debugger that the process address space was changed by one of exec(2)-family syscalls. The i386, amd64, sparc64, sun4v, powerpc and ia64 syscall()s are changed to use syscallenter()/syscallret(). MIPS and arm are not converted and use the mostly unchanged syscall() implementation. Reviewed by: jhb, marcel, marius, nwhitehorn, stas Tested by: marcel (ia64), marius (sparc64), nwhitehorn (powerpc), stas (mips) MFC after: 1 month Revision Changes Path 1.34 +5 -1 src/sys/amd64/amd64/elf_machdep.c 1.344 +19 -138 src/sys/amd64/amd64/trap.c 1.22 +38 -122 src/sys/amd64/ia32/ia32_syscall.c 1.29 +8 -0 src/sys/amd64/include/proc.h 1.57 +31 -16 src/sys/amd64/linux32/linux32_sysvec.c 1.15 +5 -1 src/sys/arm/arm/elf_machdep.c 1.42 +0 -1 src/sys/arm/arm/trap.c 1.3 +0 -1 src/sys/cddl/dev/systrace/systrace.c 1.38 +6 -1 src/sys/compat/ia32/ia32_sysvec.c 1.10 +4 -0 src/sys/compat/ia32/ia32_util.h 1.51 +4 -1 src/sys/compat/svr4/svr4_sysvec.c 1.1517 +1 -1 src/sys/conf/files 1.31 +5 -1 src/sys/i386/i386/elf_machdep.c 1.329 +25 -139 src/sys/i386/i386/trap.c 1.35 +4 -1 src/sys/i386/ibcs2/ibcs2_sysvec.c 1.31 +8 -0 src/sys/i386/include/proc.h 1.171 +36 -18 src/sys/i386/linux/linux_sysvec.c 1.15 +75 -107 src/sys/ia64/ia32/ia32_trap.c 1.33 +4 -1 src/sys/ia64/ia64/elf_machdep.c 1.137 +42 -93 src/sys/ia64/ia64/trap.c 1.19 +10 -0 src/sys/ia64/include/proc.h 1.107 +4 -0 src/sys/kern/imgact_aout.c 1.310 +20 -1 src/sys/kern/init_main.c 1.347 +4 -0 src/sys/kern/kern_exec.c 1.390 +1 -1 src/sys/kern/kern_sig.c 1.311 +162 -0 src/sys/kern/subr_trap.c 1.166 +6 -2 src/sys/kern/sys_process.c 1.5 +5 -1 src/sys/mips/mips/elf64_machdep.c 1.13 +9 -2 src/sys/mips/mips/elf_machdep.c 1.13 +0 -1 src/sys/mips/mips/trap.c 1.81 +37 -88 src/sys/powerpc/aim/trap.c 1.7 +34 -86 src/sys/powerpc/booke/trap.c 1.10 +10 -0 src/sys/powerpc/include/proc.h 1.31 +4 -1 src/sys/powerpc/powerpc/elf_machdep.c 1.17 +12 -0 src/sys/sparc64/include/proc.h 1.31 +5 -1 src/sys/sparc64/sparc64/elf_machdep.c 1.104 +14 -109 src/sys/sparc64/sparc64/trap.c 1.4 +12 -0 src/sys/sun4v/include/proc.h 1.22 +51 -106 src/sys/sun4v/sun4v/trap.c 1.548 +8 -0 src/sys/sys/proc.h 1.32 +3 -0 src/sys/sys/ptrace.h 1.65 +6 -0 src/sys/sys/sysent.h