Date: Sun, 23 May 2010 18:32:02 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: cvs-src-old@freebsd.org 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 ... Message-ID: <201005231833.o4NIXcDK081887@repoman.freebsd.org>
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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
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