diff options
| author | Olof Johansson <olof@lixom.net> | 2012-09-16 18:50:30 -0700 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2012-09-16 18:50:30 -0700 |
| commit | d192f93cfca6a0aedbf10fa548d8bc17b86275d6 (patch) | |
| tree | 357a4106ec49747bd78550a79d68f7b6d1f642a3 /arch/alpha/kernel/process.c | |
| parent | adcb079f28ec08165897e2450a4a60b219274008 (diff) | |
| parent | d5703bd35a4c76b0717ea51e2e8aabce341828a1 (diff) | |
Merge tag 'tegra-for-3.7-maintainers' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/maintainers
* tag 'tegra-for-3.7-maintainers' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra:
MAINTAINERS: tegra: remove Olof/Colin, add device tree files
MAINTAINERS: add defconfig file to TEGRA section
+ sync with 3.6-rc4
Diffstat (limited to 'arch/alpha/kernel/process.c')
| -rw-r--r-- | arch/alpha/kernel/process.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c index 153d3fce3e8..d6fde98b74b 100644 --- a/arch/alpha/kernel/process.c +++ b/arch/alpha/kernel/process.c @@ -455,3 +455,22 @@ get_wchan(struct task_struct *p) } return pc; } + +int kernel_execve(const char *path, const char *const argv[], const char *const envp[]) +{ + /* Avoid the HAE being gratuitously wrong, which would cause us + to do the whole turn off interrupts thing and restore it. */ + struct pt_regs regs = {.hae = alpha_mv.hae_cache}; + int err = do_execve(path, argv, envp, ®s); + if (!err) { + struct pt_regs *p = current_pt_regs(); + /* copy regs to normal position and off to userland we go... */ + *p = regs; + __asm__ __volatile__ ( + "mov %0, $sp;" + "br $31, ret_from_sys_call" + : : "r"(p)); + } + return err; +} +EXPORT_SYMBOL(kernel_execve); |
