BMC/Intel-BMC/linux.git/arch/blackfin/kernel/ptrace.c, branch dev

blackfin/ptrace: call find_vma with the mmap_sem held

2014-06-06T23:08:16+00:00

Performing vma lookups without taking the mm->mmap_sem is asking for trouble. While doing the search, the vma in question can be modified or even removed before returning to the caller. Take the lock (shared) in order to avoid races while iterating through the vmacache and/or rbtree. Signed-off-by: Davidlohr Bueso Cc: Steven Miao Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Disintegrate asm/system.h for Blackfin [ver #2]

2012-03-21T03:00:08+00:00

Disintegrate asm/system.h for Blackfin. Signed-off-by: David Howells cc: uclinux-dist-devel@blackfin.uclinux.org Signed-off-by: Bob Liu

ptrace: cleanup arch_ptrace() and friends on Blackfin

2010-10-28T01:03:10+00:00

Change signature of get/put_reg() according to the change of arch_ptrace() and remove unnecessary castings. Signed-off-by: Namhyung Kim Acked-by: Mike Frysinger Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

ptrace: change signature of arch_ptrace()

2010-10-28T01:03:10+00:00

Fix up the arguments to arch_ptrace() to take account of the fact that @addr and @data are now unsigned long rather than long as of a preceding patch in this series. Signed-off-by: Namhyung Kim Cc: Acked-by: Roland McGrath Acked-by: David Howells Acked-by: Geert Uytterhoeven Acked-by: David S. Miller Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Blackfin: add new cacheflush syscall

2010-10-22T07:48:59+00:00

Flushing caches sometimes requires anomaly workarounds which require supervisor-only insns. Normally we don't need to flush caches from userspace so this isn't a problem, but when gcc generates trampolines on the stack, we do. So add a new syscall for gcc to use modeled after the mips version. Signed-off-by: Sonic Zhang Signed-off-by: Mike Frysinger

Blackfin: ptrace: enable access to L1 stacks

2010-10-22T07:48:52+00:00

If an app is placing its stack in L1 scratchpad SRAM, make sure ptrace is granted access to it so that gdb can do its thing. Signed-off-by: Barry Song Signed-off-by: Mike Frysinger

ptrace: unify FDPIC implementations

2010-05-27T16:12:44+00:00

The Blackfin/FRV/SuperH guys all have the same exact FDPIC ptrace code in their arch handlers (since they were probably copied & pasted). Since these ptrace interfaces are an arch independent aspect of the FDPIC code, unify them in the common ptrace code so new FDPIC ports don't need to copy and paste this fundamental stuff yet again. Signed-off-by: Mike Frysinger Acked-by: Roland McGrath Acked-by: David Howells Acked-by: Paul Mundt Cc: Oleg Nesterov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Blackfin: fix single stepping over system calls

2010-03-09T05:30:51+00:00

On Blackfin systems, the hardware single step exception triggers before the system call exception, so we need to save this info to process it later on. Otherwise, single stepping in userspace misses a few insns right after the system call. This is based a bit on the SuperH code added in commit 4b505db9c4c72dbd. Reported-by: Roland McGrath Signed-off-by: Mike Frysinger

Blackfin: initial tracehook support

2010-03-09T05:30:51+00:00

Signed-off-by: Mike Frysinger

Blackfin: initial regset support

2010-03-09T05:30:51+00:00

We don't support core dumps (yet?), but this should make things easier. Signed-off-by: Mike Frysinger