This one is mostly kernel_thread/kernel_execve infrastructure +
conversions for arm, x86, um, alpha and s390; all of that has sat in
linux-next for a while. There are several moderately unpleasant conflicts;
I hadn't rebased that branch, but I'd put proposed conflict resolution into
signal.git#proposed-merge. Please, pull from
git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal for-linus
Shortlog:
Al Viro (26):
x86: get rid of TIF_IRET hackery
get rid of generic instances of asm/exec.h
the only place that needs to include asm/exec.h is linux/binfmts.h
don't bother exporting kernel_execve()
um: take cleaning singlestep to start_thread()
um: don't leak floating point state and segment registers on execve()
um: let signal_delivered() do SIGTRAP on singlestepping into handler
um: kill thread->forking
preparation for generic kernel_thread()
new helper: current_pt_regs()
generic kernel_execve()
generic sys_execve()
arm: split ret_from_fork, simplify kernel_thread() [based on patch by rmk]
arm: introduce ret_from_kernel_execve(), switch to generic kernel_execve()
arm: optimized current_pt_regs()
arm: get rid of execve wrapper, switch to generic execve() implementation
alpha: switch to generic sys_execve()
alpha: switch to generic kernel_thread()
alpha: introduce ret_from_kernel_execve(), switch to generic
kernel_execve()
x86: split ret_from_fork
x86, um/x86: switch to generic sys_execve and kernel_execve
um: switch to generic kernel_thread()
s390: fold execve_tail() into start_thread(), convert to generic
sys_execve()
s390: fold kernel_thread_helper() into ret_from_fork()
s390: switch to generic kernel_thread()
s390: convert to generic kernel_execve()
Diffstat:
arch/Kconfig | 3 +
arch/alpha/Kconfig | 1 +
arch/alpha/include/asm/Kbuild | 1 +
arch/alpha/include/asm/exec.h | 6 --
arch/alpha/include/asm/processor.h | 3 -
arch/alpha/include/asm/unistd.h | 2 +
arch/alpha/kernel/alpha_ksyms.c | 3 -
arch/alpha/kernel/entry.S | 69 +++++---------------
arch/alpha/kernel/process.c | 79 ++++++-----------------
arch/arm/Kconfig | 1 +
arch/arm/include/asm/Kbuild | 1 +
arch/arm/include/asm/exec.h | 6 --
arch/arm/include/asm/processor.h | 5 --
arch/arm/include/asm/ptrace.h | 5 ++
arch/arm/include/asm/system.h | 1 -
arch/arm/include/asm/unistd.h | 2 +
arch/arm/kernel/calls.S | 2 +-
arch/arm/kernel/entry-common.S | 29 +++++++--
arch/arm/kernel/process.c | 75 ++++------------------
arch/arm/kernel/sys_arm.c | 63 ------------------
arch/avr32/include/asm/Kbuild | 1 +
arch/avr32/include/asm/exec.h | 13 ----
arch/c6x/include/asm/Kbuild | 1 +
arch/c6x/include/asm/exec.h | 6 --
arch/cris/include/asm/Kbuild | 2 +
arch/cris/include/asm/exec.h | 6 --
arch/frv/include/asm/Kbuild | 1 +
arch/frv/include/asm/exec.h | 17 -----
arch/h8300/include/asm/Kbuild | 1 +
arch/h8300/include/asm/exec.h | 6 --
arch/hexagon/kernel/syscall.c | 1 -
arch/ia64/include/asm/Kbuild | 1 +
arch/ia64/include/asm/exec.h | 14 ----
arch/m32r/include/asm/Kbuild | 2 +
arch/m32r/include/asm/exec.h | 14 ----
arch/m68k/include/asm/Kbuild | 1 +
arch/m68k/include/asm/exec.h | 6 --
arch/microblaze/include/asm/Kbuild | 1 +
arch/microblaze/include/asm/exec.h | 14 ----
arch/mn10300/include/asm/Kbuild | 2 +
arch/mn10300/include/asm/exec.h | 16 -----
arch/parisc/include/asm/Kbuild | 1 +
arch/parisc/include/asm/exec.h | 6 --
arch/s390/Kconfig | 1 +
arch/s390/include/asm/processor.h | 4 +-
arch/s390/include/asm/unistd.h | 2 +
arch/s390/kernel/compat_linux.c | 26 --------
arch/s390/kernel/compat_linux.h | 2 -
arch/s390/kernel/compat_wrapper.S | 2 +-
arch/s390/kernel/entry.S | 51 ++++++---------
arch/s390/kernel/entry.h | 3 -
arch/s390/kernel/entry64.S | 50 ++++++---------
arch/s390/kernel/process.c | 107 ++++++++++---------------------
arch/sh/include/asm/Kbuild | 1 +
arch/sh/include/asm/exec.h | 10 ---
arch/sparc/include/asm/Kbuild | 1 +
arch/sparc/include/asm/exec.h | 6 --
arch/tile/include/asm/Kbuild | 1 +
arch/tile/include/asm/exec.h | 20 ------
arch/um/include/asm/processor-generic.h | 11 ---
arch/um/kernel/exec.c | 46 ++------------
arch/um/kernel/internal.h | 1 -
arch/um/kernel/process.c | 25 ++-----
arch/um/kernel/signal.c | 6 ++-
arch/um/kernel/syscall.c | 41 ++++--------
arch/unicore32/include/asm/Kbuild | 1 +
arch/unicore32/include/asm/exec.h | 15 ----
arch/unicore32/kernel/sys.c | 1 -
arch/x86/Kconfig | 1 +
arch/x86/ia32/ia32entry.S | 2 +-
arch/x86/ia32/sys_ia32.c | 15 ----
arch/x86/include/asm/processor.h | 5 --
arch/x86/include/asm/sys_ia32.h | 2 -
arch/x86/include/asm/syscalls.h | 2 +-
arch/x86/include/asm/thread_info.h | 2 -
arch/x86/include/asm/unistd.h | 2 +
arch/x86/kernel/Makefile | 2 +-
arch/x86/kernel/asm-offsets.c | 3 +
arch/x86/kernel/entry_32.S | 26 +++++--
arch/x86/kernel/entry_64.S | 74 +++++++--------------
arch/x86/kernel/process.c | 65 -------------------
arch/x86/kernel/process_32.c | 37 +++++++++--
arch/x86/kernel/process_64.c | 35 ++++++----
arch/x86/kernel/signal.c | 4 -
arch/x86/kernel/sys_i386_32.c | 40 ------------
arch/x86/kernel/vm86_32.c | 6 +-
arch/x86/syscalls/syscall_32.tbl | 2 +-
arch/x86/um/Kconfig | 1 +
arch/x86/um/shared/sysdep/syscalls.h | 2 +
arch/x86/um/signal.c | 6 --
arch/x86/um/sys_call_table_32.c | 3 +-
arch/x86/um/syscalls_32.c | 27 ++------
arch/x86/um/syscalls_64.c | 23 +------
arch/xtensa/include/asm/Kbuild | 2 +
arch/xtensa/include/asm/exec.h | 14 ----
fs/binfmt_elf.c | 1 -
fs/binfmt_elf_fdpic.c | 1 -
fs/exec.c | 61 ++++++++++++++++--
include/linux/binfmts.h | 6 ++
include/linux/compat.h | 8 ++-
include/linux/ptrace.h | 4 +
include/linux/sched.h | 3 +
kernel/fork.c | 13 ++++-
103 files changed, 431 insertions(+), 993 deletions(-)
delete mode 100644 arch/alpha/include/asm/exec.h
delete mode 100644 arch/arm/include/asm/exec.h
delete mode 100644 arch/avr32/include/asm/exec.h
delete mode 100644 arch/c6x/include/asm/exec.h
delete mode 100644 arch/cris/include/asm/exec.h
delete mode 100644 arch/frv/include/asm/exec.h
delete mode 100644 arch/h8300/include/asm/exec.h
delete mode 100644 arch/ia64/include/asm/exec.h
delete mode 100644 arch/m32r/include/asm/exec.h
delete mode 100644 arch/m68k/include/asm/exec.h
delete mode 100644 arch/microblaze/include/asm/exec.h
delete mode 100644 arch/mn10300/include/asm/exec.h
delete mode 100644 arch/parisc/include/asm/exec.h
delete mode 100644 arch/sh/include/asm/exec.h
delete mode 100644 arch/sparc/include/asm/exec.h
delete mode 100644 arch/tile/include/asm/exec.h
delete mode 100644 arch/um/kernel/internal.h
delete mode 100644 arch/unicore32/include/asm/exec.h
delete mode 100644 arch/x86/kernel/sys_i386_32.c
delete mode 100644 arch/xtensa/include/asm/exec.h
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