[PATCH] CRIS update: updates for 2.6.12

Patches to make CRIS work with 2.6.12.

Signed-off-by: Mikael Starvik <starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

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);