diff options
Diffstat (limited to 'arch/cris/arch-v10')
-rw-r--r-- | arch/cris/arch-v10/README.mm | 6 | ||||
-rw-r--r-- | arch/cris/arch-v10/kernel/ptrace.c | 51 | ||||
-rw-r--r-- | arch/cris/arch-v10/kernel/signal.c | 2 |
3 files changed, 6 insertions, 53 deletions
diff --git a/arch/cris/arch-v10/README.mm b/arch/cris/arch-v10/README.mm index 6f08903f3139..517d1f027fe8 100644 --- a/arch/cris/arch-v10/README.mm +++ b/arch/cris/arch-v10/README.mm | |||
@@ -177,7 +177,7 @@ The example address is 0xd004000c; in binary this is: | |||
177 | Given the top-level Page Directory, the offset in that directory is calculated | 177 | Given the top-level Page Directory, the offset in that directory is calculated |
178 | using the upper 8 bits: | 178 | using the upper 8 bits: |
179 | 179 | ||
180 | extern inline pgd_t * pgd_offset(struct mm_struct * mm, unsigned long address) | 180 | static inline pgd_t * pgd_offset(struct mm_struct * mm, unsigned long address) |
181 | { | 181 | { |
182 | return mm->pgd + (address >> PGDIR_SHIFT); | 182 | return mm->pgd + (address >> PGDIR_SHIFT); |
183 | } | 183 | } |
@@ -190,14 +190,14 @@ The pgd_t from our example will therefore be the 208'th (0xd0) entry in mm->pgd. | |||
190 | 190 | ||
191 | Since the Middle Directory does not exist, it is a unity mapping: | 191 | Since the Middle Directory does not exist, it is a unity mapping: |
192 | 192 | ||
193 | extern inline pmd_t * pmd_offset(pgd_t * dir, unsigned long address) | 193 | static inline pmd_t * pmd_offset(pgd_t * dir, unsigned long address) |
194 | { | 194 | { |
195 | return (pmd_t *) dir; | 195 | return (pmd_t *) dir; |
196 | } | 196 | } |
197 | 197 | ||
198 | The Page Table provides the final lookup by using bits 13 to 23 as index: | 198 | The Page Table provides the final lookup by using bits 13 to 23 as index: |
199 | 199 | ||
200 | extern inline pte_t * pte_offset(pmd_t * dir, unsigned long address) | 200 | static inline pte_t * pte_offset(pmd_t * dir, unsigned long address) |
201 | { | 201 | { |
202 | return (pte_t *) pmd_page(*dir) + ((address >> PAGE_SHIFT) & | 202 | return (pte_t *) pmd_page(*dir) + ((address >> PAGE_SHIFT) & |
203 | (PTRS_PER_PTE - 1)); | 203 | (PTRS_PER_PTE - 1)); |
diff --git a/arch/cris/arch-v10/kernel/ptrace.c b/arch/cris/arch-v10/kernel/ptrace.c index 130dd214e41d..6cbd34a27b90 100644 --- a/arch/cris/arch-v10/kernel/ptrace.c +++ b/arch/cris/arch-v10/kernel/ptrace.c | |||
@@ -76,55 +76,11 @@ ptrace_disable(struct task_struct *child) | |||
76 | * (in user space) where the result of the ptrace call is written (instead of | 76 | * (in user space) where the result of the ptrace call is written (instead of |
77 | * being returned). | 77 | * being returned). |
78 | */ | 78 | */ |
79 | asmlinkage int | 79 | long arch_ptrace(struct task_struct *child, long request, long addr, long data) |
80 | sys_ptrace(long request, long pid, long addr, long data) | ||
81 | { | 80 | { |
82 | struct task_struct *child; | ||
83 | int ret; | 81 | int ret; |
84 | unsigned long __user *datap = (unsigned long __user *)data; | 82 | unsigned long __user *datap = (unsigned long __user *)data; |
85 | 83 | ||
86 | lock_kernel(); | ||
87 | ret = -EPERM; | ||
88 | |||
89 | if (request == PTRACE_TRACEME) { | ||
90 | /* are we already being traced? */ | ||
91 | if (current->ptrace & PT_PTRACED) | ||
92 | goto out; | ||
93 | ret = security_ptrace(current->parent, current); | ||
94 | if (ret) | ||
95 | goto out; | ||
96 | /* set the ptrace bit in the process flags. */ | ||
97 | current->ptrace |= PT_PTRACED; | ||
98 | ret = 0; | ||
99 | goto out; | ||
100 | } | ||
101 | |||
102 | ret = -ESRCH; | ||
103 | read_lock(&tasklist_lock); | ||
104 | child = find_task_by_pid(pid); | ||
105 | |||
106 | if (child) | ||
107 | get_task_struct(child); | ||
108 | |||
109 | read_unlock(&tasklist_lock); | ||
110 | |||
111 | if (!child) | ||
112 | goto out; | ||
113 | |||
114 | ret = -EPERM; | ||
115 | |||
116 | if (pid == 1) /* Leave the init process alone! */ | ||
117 | goto out_tsk; | ||
118 | |||
119 | if (request == PTRACE_ATTACH) { | ||
120 | ret = ptrace_attach(child); | ||
121 | goto out_tsk; | ||
122 | } | ||
123 | |||
124 | ret = ptrace_check_attach(child, request == PTRACE_KILL); | ||
125 | if (ret < 0) | ||
126 | goto out_tsk; | ||
127 | |||
128 | switch (request) { | 84 | switch (request) { |
129 | /* Read word at location address. */ | 85 | /* Read word at location address. */ |
130 | case PTRACE_PEEKTEXT: | 86 | case PTRACE_PEEKTEXT: |
@@ -289,10 +245,7 @@ sys_ptrace(long request, long pid, long addr, long data) | |||
289 | ret = ptrace_request(child, request, addr, data); | 245 | ret = ptrace_request(child, request, addr, data); |
290 | break; | 246 | break; |
291 | } | 247 | } |
292 | out_tsk: | 248 | |
293 | put_task_struct(child); | ||
294 | out: | ||
295 | unlock_kernel(); | ||
296 | return ret; | 249 | return ret; |
297 | } | 250 | } |
298 | 251 | ||
diff --git a/arch/cris/arch-v10/kernel/signal.c b/arch/cris/arch-v10/kernel/signal.c index 693771961f85..19bcad05716f 100644 --- a/arch/cris/arch-v10/kernel/signal.c +++ b/arch/cris/arch-v10/kernel/signal.c | |||
@@ -476,7 +476,7 @@ give_sigsegv: | |||
476 | * OK, we're invoking a handler | 476 | * OK, we're invoking a handler |
477 | */ | 477 | */ |
478 | 478 | ||
479 | extern inline void | 479 | static inline void |
480 | handle_signal(int canrestart, unsigned long sig, | 480 | handle_signal(int canrestart, unsigned long sig, |
481 | siginfo_t *info, struct k_sigaction *ka, | 481 | siginfo_t *info, struct k_sigaction *ka, |
482 | sigset_t *oldset, struct pt_regs * regs) | 482 | sigset_t *oldset, struct pt_regs * regs) |