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-rw-r--r--arch/cris/arch-v10/kernel/ptrace.c9
-rw-r--r--arch/cris/kernel/module.c39
-rw-r--r--arch/cris/kernel/process.c31
3 files changed, 46 insertions, 33 deletions
diff --git a/arch/cris/arch-v10/kernel/ptrace.c b/arch/cris/arch-v10/kernel/ptrace.c
index 581ecabaae5..130dd214e41 100644
--- a/arch/cris/arch-v10/kernel/ptrace.c
+++ b/arch/cris/arch-v10/kernel/ptrace.c
@@ -11,6 +11,7 @@
#include <linux/ptrace.h>
#include <linux/user.h>
#include <linux/signal.h>
+#include <linux/security.h>
#include <asm/uaccess.h>
#include <asm/page.h>
@@ -86,9 +87,13 @@ sys_ptrace(long request, long pid, long addr, long data)
ret = -EPERM;
if (request == PTRACE_TRACEME) {
+ /* are we already being traced? */
if (current->ptrace & PT_PTRACED)
goto out;
-
+ ret = security_ptrace(current->parent, current);
+ if (ret)
+ goto out;
+ /* set the ptrace bit in the process flags. */
current->ptrace |= PT_PTRACED;
ret = 0;
goto out;
@@ -207,7 +212,7 @@ sys_ptrace(long request, long pid, long addr, long data)
case PTRACE_KILL:
ret = 0;
- if (child->state == TASK_ZOMBIE)
+ if (child->exit_state == EXIT_ZOMBIE)
break;
child->exit_code = SIGKILL;
diff --git a/arch/cris/kernel/module.c b/arch/cris/kernel/module.c
index f1d3e784f30..11b867df861 100644
--- a/arch/cris/kernel/module.c
+++ b/arch/cris/kernel/module.c
@@ -32,7 +32,7 @@ void *module_alloc(unsigned long size)
{
if (size == 0)
return NULL;
- return vmalloc(size);
+ return vmalloc_exec(size);
}
@@ -59,26 +59,8 @@ int apply_relocate(Elf32_Shdr *sechdrs,
unsigned int relsec,
struct module *me)
{
- unsigned int i;
- Elf32_Rel *rel = (void *)sechdrs[relsec].sh_addr;
- Elf32_Sym *sym;
- uint32_t *location;
-
- DEBUGP("Applying relocate section %u to %u\n", relsec,
- sechdrs[relsec].sh_info);
- for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
- /* This is where to make the change */
- location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_offset
- + rel[i].r_offset;
- /* This is the symbol it is referring to. Note that all
- undefined symbols have been resolved. */
- sym = (Elf32_Sym *)sechdrs[symindex].sh_addr
- + ELF32_R_SYM(rel[i].r_info);
-
- /* We add the value into the location given */
- *location += sym->st_value;
- }
- return 0;
+ printk(KERN_ERR "module %s: REL relocation unsupported\n", me->name);
+ return -ENOEXEC;
}
int apply_relocate_add(Elf32_Shdr *sechdrs,
@@ -90,7 +72,7 @@ int apply_relocate_add(Elf32_Shdr *sechdrs,
unsigned int i;
Elf32_Rela *rela = (void *)sechdrs[relsec].sh_addr;
- DEBUGP ("Applying relocate section %u to %u\n", relsec,
+ DEBUGP ("Applying add relocate section %u to %u\n", relsec,
sechdrs[relsec].sh_info);
for (i = 0; i < sechdrs[relsec].sh_size / sizeof (*rela); i++) {
@@ -103,7 +85,18 @@ int apply_relocate_add(Elf32_Shdr *sechdrs,
Elf32_Sym *sym
= ((Elf32_Sym *)sechdrs[symindex].sh_addr
+ ELF32_R_SYM (rela[i].r_info));
- *loc = sym->st_value + rela[i].r_addend;
+ switch (ELF32_R_TYPE(rela[i].r_info)) {
+ case R_CRIS_32:
+ *loc = sym->st_value + rela[i].r_addend;
+ break;
+ case R_CRIS_32_PCREL:
+ *loc = sym->st_value - (unsigned)loc + rela[i].r_addend - 4;
+ break;
+ default:
+ printk(KERN_ERR "module %s: Unknown relocation: %u\n",
+ me->name, ELF32_R_TYPE(rela[i].r_info));
+ return -ENOEXEC;
+ }
}
return 0;
diff --git a/arch/cris/kernel/process.c b/arch/cris/kernel/process.c
index a5ad2b67585..949a0e40e03 100644
--- a/arch/cris/kernel/process.c
+++ b/arch/cris/kernel/process.c
@@ -1,4 +1,4 @@
-/* $Id: process.c,v 1.17 2004/04/05 13:53:48 starvik Exp $
+/* $Id: process.c,v 1.21 2005/03/04 08:16:17 starvik Exp $
*
* linux/arch/cris/kernel/process.c
*
@@ -8,6 +8,18 @@
* Authors: Bjorn Wesen (bjornw@axis.com)
*
* $Log: process.c,v $
+ * Revision 1.21 2005/03/04 08:16:17 starvik
+ * Merge of Linux 2.6.11.
+ *
+ * Revision 1.20 2005/01/18 05:57:22 starvik
+ * Renamed hlt_counter to cris_hlt_counter and made it global.
+ *
+ * Revision 1.19 2004/10/19 13:07:43 starvik
+ * Merge of Linux 2.6.9
+ *
+ * Revision 1.18 2004/08/16 12:37:23 starvik
+ * Merge of Linux 2.6.8
+ *
* Revision 1.17 2004/04/05 13:53:48 starvik
* Merge of Linux 2.6.5
*
@@ -161,18 +173,18 @@ EXPORT_SYMBOL(init_task);
* region by enable_hlt/disable_hlt.
*/
-static int hlt_counter=0;
+int cris_hlt_counter=0;
void disable_hlt(void)
{
- hlt_counter++;
+ cris_hlt_counter++;
}
EXPORT_SYMBOL(disable_hlt);
void enable_hlt(void)
{
- hlt_counter--;
+ cris_hlt_counter--;
}
EXPORT_SYMBOL(enable_hlt);
@@ -195,16 +207,19 @@ void cpu_idle (void)
/* endless idle loop with no priority at all */
while (1) {
while (!need_resched()) {
- void (*idle)(void) = pm_idle;
-
+ void (*idle)(void);
+ /*
+ * Mark this as an RCU critical section so that
+ * synchronize_kernel() in the unload path waits
+ * for our completion.
+ */
+ idle = pm_idle;
if (!idle)
idle = default_idle;
-
idle();
}
schedule();
}
-
}
void hard_reset_now (void);