[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>
git-mirror · Jul 27, 2005 · 5d01e6c · 5d01e6c
1 parent dcf1310
commit 5d01e6c
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Showing 15 changed files with 88 additions and 119 deletions.
diff --git 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
@@ -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
@@ -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);

diff --git a/include/asm-cris/arch-v10/bitops.h b/include/asm-cris/arch-v10/bitops.h
@@ -51,7 +51,7 @@ extern inline unsigned long ffz(unsigned long w)
  *
  * Undefined if no bit exists, so code should check against 0 first.
  */
-extern __inline__ unsigned long __ffs(unsigned long word)
+extern inline unsigned long __ffs(unsigned long word)
 {
 	return cris_swapnwbrlz(~word);
 }

diff --git a/include/asm-cris/arch-v10/offset.h b/include/asm-cris/arch-v10/offset.h
@@ -25,7 +25,7 @@
 #define THREAD_usp 4 /* offsetof(struct thread_struct, usp) */
 #define THREAD_dccr 8 /* offsetof(struct thread_struct, dccr) */
 
-#define TASK_pid 133 /* offsetof(struct task_struct, pid) */
+#define TASK_pid 141 /* offsetof(struct task_struct, pid) */
 
 #define LCLONE_VM 256 /* CLONE_VM */
 #define LCLONE_UNTRACED 8388608 /* CLONE_UNTRACED */

diff --git a/include/asm-cris/bitops.h b/include/asm-cris/bitops.h
@@ -16,6 +16,7 @@
 
 #include <asm/arch/bitops.h>
 #include <asm/system.h>
+#include <asm/atomic.h>
 #include <linux/compiler.h>
 
 /*
@@ -88,23 +89,23 @@ struct __dummy { unsigned long a[100]; };
  * It also implies a memory barrier.
  */
 
-extern inline int test_and_set_bit(int nr, void *addr)
+extern inline int test_and_set_bit(int nr, volatile unsigned long *addr)
 {
 	unsigned int mask, retval;
 	unsigned long flags;
 	unsigned int *adr = (unsigned int *)addr;
 
 	adr += nr >> 5;
 	mask = 1 << (nr & 0x1f);
-	local_save_flags(flags);
-	local_irq_disable();
+	cris_atomic_save(addr, flags);
 	retval = (mask & *adr) != 0;
 	*adr |= mask;
+	cris_atomic_restore(addr, flags);
 	local_irq_restore(flags);
 	return retval;
 }
 
-extern inline int __test_and_set_bit(int nr, void *addr)
+extern inline int __test_and_set_bit(int nr, volatile unsigned long *addr)
 {
 	unsigned int mask, retval;
 	unsigned int *adr = (unsigned int *)addr;
@@ -131,19 +132,18 @@ extern inline int __test_and_set_bit(int nr, void *addr)
  * It also implies a memory barrier.
  */
 
-extern inline int test_and_clear_bit(int nr, void *addr)
+extern inline int test_and_clear_bit(int nr, volatile unsigned long *addr)
 {
 	unsigned int mask, retval;
 	unsigned long flags;
 	unsigned int *adr = (unsigned int *)addr;
 
 	adr += nr >> 5;
 	mask = 1 << (nr & 0x1f);
-	local_save_flags(flags);
-	local_irq_disable();
+	cris_atomic_save(addr, flags);
 	retval = (mask & *adr) != 0;
 	*adr &= ~mask;
-	local_irq_restore(flags);
+	cris_atomic_restore(addr, flags);
 	return retval;
 }
 
@@ -157,7 +157,7 @@ extern inline int test_and_clear_bit(int nr, void *addr)
  * but actually fail.  You must protect multiple accesses with a lock.
  */
 
-extern inline int __test_and_clear_bit(int nr, void *addr)
+extern inline int __test_and_clear_bit(int nr, volatile unsigned long *addr)
 {
 	unsigned int mask, retval;
 	unsigned int *adr = (unsigned int *)addr;
@@ -177,24 +177,23 @@ extern inline int __test_and_clear_bit(int nr, void *addr)
  * It also implies a memory barrier.
  */
 
-extern inline int test_and_change_bit(int nr, void *addr)
+extern inline int test_and_change_bit(int nr, volatile unsigned long *addr)
 {
 	unsigned int mask, retval;
 	unsigned long flags;
 	unsigned int *adr = (unsigned int *)addr;
 	adr += nr >> 5;
 	mask = 1 << (nr & 0x1f);
-	local_save_flags(flags);
-	local_irq_disable();
+	cris_atomic_save(addr, flags);
 	retval = (mask & *adr) != 0;
 	*adr ^= mask;
-	local_irq_restore(flags);
+	cris_atomic_restore(addr, flags);
 	return retval;
 }
 
 /* WARNING: non atomic and it can be reordered! */
 
-extern inline int __test_and_change_bit(int nr, void *addr)
+extern inline int __test_and_change_bit(int nr, volatile unsigned long *addr)
 {
 	unsigned int mask, retval;
 	unsigned int *adr = (unsigned int *)addr;
@@ -215,7 +214,7 @@ extern inline int __test_and_change_bit(int nr, void *addr)
  * This routine doesn't need to be atomic.
  */
 
-extern inline int test_bit(int nr, const void *addr)
+extern inline int test_bit(int nr, const volatile unsigned long *addr)
 {
 	unsigned int mask;
 	unsigned int *adr = (unsigned int *)addr;
@@ -259,7 +258,7 @@ extern inline int test_bit(int nr, const void *addr)
  * @offset: The bitnumber to start searching at
  * @size: The maximum size to search
  */
-extern inline int find_next_zero_bit (void * addr, int size, int offset)
+extern inline int find_next_zero_bit (const unsigned long * addr, int size, int offset)
 {
 	unsigned long *p = ((unsigned long *) addr) + (offset >> 5);
 	unsigned long result = offset & ~31UL;
@@ -301,7 +300,7 @@ extern inline int find_next_zero_bit (void * addr, int size, int offset)
  * @offset: The bitnumber to start searching at
  * @size: The maximum size to search
  */
-static __inline__ int find_next_bit(void *addr, int size, int offset)
+static __inline__ int find_next_bit(const unsigned long *addr, int size, int offset)
 {
 	unsigned long *p = ((unsigned long *) addr) + (offset >> 5);
         unsigned long result = offset & ~31UL;
@@ -367,7 +366,7 @@ static __inline__ int find_next_bit(void *addr, int size, int offset)
 #define minix_test_bit(nr,addr) test_bit(nr,addr)
 #define minix_find_first_zero_bit(addr,size) find_first_zero_bit(addr,size)
 
-extern inline int sched_find_first_bit(unsigned long *b)
+extern inline int sched_find_first_bit(const unsigned long *b)
 {
 	if (unlikely(b[0]))
 		return __ffs(b[0]);

diff --git a/include/asm-cris/kmap_types.h b/include/asm-cris/kmap_types.h
@@ -17,8 +17,8 @@ enum km_type {
 	KM_PTE1,
 	KM_IRQ0,
 	KM_IRQ1,
-	KM_CRYPTO_USER,
-	KM_CRYPTO_SOFTIRQ,
+	KM_SOFTIRQ0,
+	KM_SOFTIRQ1,
 	KM_TYPE_NR
 };
 

diff --git a/include/asm-cris/page.h b/include/asm-cris/page.h
@@ -29,18 +29,15 @@
  */
 #ifndef __ASSEMBLY__
 typedef struct { unsigned long pte; } pte_t;
-typedef struct { unsigned long pmd; } pmd_t;
 typedef struct { unsigned long pgd; } pgd_t;
 typedef struct { unsigned long pgprot; } pgprot_t;
 #endif
 
 #define pte_val(x)	((x).pte)
-#define pmd_val(x)	((x).pmd)
 #define pgd_val(x)	((x).pgd)
 #define pgprot_val(x)	((x).pgprot)
 
 #define __pte(x)	((pte_t) { (x) } )
-#define __pmd(x)	((pmd_t) { (x) } )
 #define __pgd(x)	((pgd_t) { (x) } )
 #define __pgprot(x)	((pgprot_t) { (x) } )
 
@@ -73,10 +70,6 @@ typedef struct { unsigned long pgprot; } pgprot_t;
 
 #ifndef __ASSEMBLY__
 
-#define BUG() do { \
-  printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
-} while (0)
-
 /* Pure 2^n version of get_order */
 static inline int get_order(unsigned long size)
 {

diff --git a/include/asm-cris/pgalloc.h b/include/asm-cris/pgalloc.h
@@ -47,16 +47,6 @@ extern inline void pte_free(struct page *pte)
 
 #define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte))
 
-/*
- * We don't have any real pmd's, and this code never triggers because
- * the pgd will always be present..
- */
-
-#define pmd_alloc_one(mm, addr)    ({ BUG(); ((pmd_t *)2); })
-#define pmd_free(x)                do { } while (0)
-#define __pmd_free_tlb(tlb,x)      do { } while (0)
-#define pgd_populate(mm, pmd, pte) BUG()
-
 #define check_pgt_cache()          do { } while (0)
 
 #endif