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| author | Sonic Zhang <sonic.zhang@analog.com> | 2010-09-06 12:16:04 +0200 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2010-10-22 09:48:59 +0200 |
| commit | 99a5b2878b56d24919eb7e646f2d8e02f63a6efc (patch) | |
| tree | 5db99463ad9f68e383aa54c9d102f91f5b890091 /arch/blackfin/kernel/ptrace.c | |
| parent | Blackfin: bf548-ezkit: increase u-boot partition size (diff) | |
| download | linux-99a5b2878b56d24919eb7e646f2d8e02f63a6efc.tar.xz linux-99a5b2878b56d24919eb7e646f2d8e02f63a6efc.zip | |
Blackfin: add new cacheflush syscall
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 <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'arch/blackfin/kernel/ptrace.c')
| -rw-r--r-- | arch/blackfin/kernel/ptrace.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/blackfin/kernel/ptrace.c b/arch/blackfin/kernel/ptrace.c index d890c1e35ec6..b35839354130 100644 --- a/arch/blackfin/kernel/ptrace.c +++ b/arch/blackfin/kernel/ptrace.c @@ -114,8 +114,8 @@ put_reg(struct task_struct *task, long regno, unsigned long data) /* * check that an address falls within the bounds of the target process's memory mappings */ -static inline int is_user_addr_valid(struct task_struct *child, - unsigned long start, unsigned long len) +int +is_user_addr_valid(struct task_struct *child, unsigned long start, unsigned long len) { struct vm_area_struct *vma; struct sram_list_struct *sraml; |