diff options
| -rw-r--r-- | arch/cris/arch-v10/kernel/ptrace.c | 9 | ||||
| -rw-r--r-- | arch/cris/kernel/module.c | 39 | ||||
| -rw-r--r-- | arch/cris/kernel/process.c | 31 | ||||
| -rw-r--r-- | include/asm-cris/arch-v10/bitops.h | 2 | ||||
| -rw-r--r-- | include/asm-cris/arch-v10/offset.h | 2 | ||||
| -rw-r--r-- | include/asm-cris/bitops.h | 35 | ||||
| -rw-r--r-- | include/asm-cris/kmap_types.h | 4 | ||||
| -rw-r--r-- | include/asm-cris/page.h | 7 | ||||
| -rw-r--r-- | include/asm-cris/pgalloc.h | 10 | ||||
| -rw-r--r-- | include/asm-cris/pgtable.h | 42 | ||||
| -rw-r--r-- | include/asm-cris/processor.h | 9 | ||||
| -rw-r--r-- | include/asm-cris/thread_info.h | 2 | ||||
| -rw-r--r-- | include/asm-cris/timex.h | 2 | ||||
| -rw-r--r-- | include/asm-cris/types.h | 2 | ||||
| -rw-r--r-- | include/asm-cris/unistd.h | 11 |
15 files changed, 88 insertions, 119 deletions
diff --git a/arch/cris/arch-v10/kernel/ptrace.c b/arch/cris/arch-v10/kernel/ptrace.c index 581ecab..130dd21 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 f1d3e78..11b867d 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 a5ad2b6..949a0e4 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); diff --git a/include/asm-cris/arch-v10/bitops.h b/include/asm-cris/arch-v10/bitops.h index 21b7ae8..b73f539 100644 --- 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 index fcbd77e..675b51d 100644 --- 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 index d786111..e3da57f 100644 --- 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> /* @@ -88,7 +89,7 @@ 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; @@ -96,15 +97,15 @@ extern inline int test_and_set_bit(int nr, void *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; @@ -131,7 +132,7 @@ 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; @@ -139,11 +140,10 @@ extern inline int test_and_clear_bit(int nr, void *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 @@ found_middle: #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 index eec0974..492988c 100644 --- 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 index c767da1..bbf17bd 100644 --- 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 index b202e62..a131776 100644 --- 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 diff --git a/include/asm-cris/pgtable.h b/include/asm-cris/pgtable.h index f704294..a9143be 100644 --- a/include/asm-cris/pgtable.h +++ b/include/asm-cris/pgtable.h @@ -5,7 +5,8 @@ #ifndef _CRIS_PGTABLE_H #define _CRIS_PGTABLE_H -#include <asm-generic/4level-fixup.h> +#include <asm/page.h> +#include <asm-generic/pgtable-nopmd.h> #ifndef __ASSEMBLY__ #include <linux/config.h> @@ -41,22 +42,14 @@ extern void paging_init(void); * but the define is needed for a generic inline function.) */ #define set_pmd(pmdptr, pmdval) (*(pmdptr) = pmdval) -#define set_pgd(pgdptr, pgdval) (*(pgdptr) = pgdval) +#define set_pgu(pudptr, pudval) (*(pudptr) = pudval) -/* PMD_SHIFT determines the size of the area a second-level page table can +/* PGDIR_SHIFT determines the size of the area a second-level page table can * map. It is equal to the page size times the number of PTE's that fit in * a PMD page. A PTE is 4-bytes in CRIS. Hence the following number. */ -#define PMD_SHIFT (PAGE_SHIFT + (PAGE_SHIFT-2)) -#define PMD_SIZE (1UL << PMD_SHIFT) -#define PMD_MASK (~(PMD_SIZE-1)) - -/* PGDIR_SHIFT determines what a third-level page table entry can map. - * Since we fold into a two-level structure, this is the same as PMD_SHIFT. - */ - -#define PGDIR_SHIFT PMD_SHIFT +#define PGDIR_SHIFT (PAGE_SHIFT + (PAGE_SHIFT-2)) #define PGDIR_SIZE (1UL << PGDIR_SHIFT) #define PGDIR_MASK (~(PGDIR_SIZE-1)) @@ -67,7 +60,6 @@ extern void paging_init(void); * divide it by 4 (shift by 2). */ #define PTRS_PER_PTE (1UL << (PAGE_SHIFT-2)) -#define PTRS_PER_PMD 1 #define PTRS_PER_PGD (1UL << (PAGE_SHIFT-2)) /* calculate how many PGD entries a user-level program can use @@ -105,7 +97,7 @@ extern unsigned long empty_zero_page; #define pte_present(x) (pte_val(x) & _PAGE_PRESENT) #define pte_clear(mm,addr,xp) do { pte_val(*(xp)) = 0; } while (0) -#define pmd_none(x) (!pmd_val(x)) +#define pmd_none(x) (!pmd_val(x)) /* by removing the _PAGE_KERNEL bit from the comparision, the same pmd_bad * works for both _PAGE_TABLE and _KERNPG_TABLE pmd entries. */ @@ -116,16 +108,6 @@ extern unsigned long empty_zero_page; #ifndef __ASSEMBLY__ /* - * The "pgd_xxx()" functions here are trivial for a folded two-level - * setup: the pgd is never bad, and a pmd always exists (as it's folded - * into the pgd entry) - */ -extern inline int pgd_none(pgd_t pgd) { return 0; } -extern inline int pgd_bad(pgd_t pgd) { return 0; } -extern inline int pgd_present(pgd_t pgd) { return 1; } -extern inline void pgd_clear(pgd_t * pgdp) { } - -/* * The following only work if pte_present() is true. * Undefined behaviour if not.. */ @@ -275,7 +257,7 @@ extern inline void pmd_set(pmd_t * pmdp, pte_t * ptep) #define pmd_page_kernel(pmd) ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK)) /* to find an entry in a page-table-directory. */ -#define pgd_index(address) ((address >> PGDIR_SHIFT) & (PTRS_PER_PGD-1)) +#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1)) /* to find an entry in a page-table-directory */ extern inline pgd_t * pgd_offset(struct mm_struct * mm, unsigned long address) @@ -286,12 +268,6 @@ extern inline pgd_t * pgd_offset(struct mm_struct * mm, unsigned long address) /* to find an entry in a kernel page-table-directory */ #define pgd_offset_k(address) pgd_offset(&init_mm, address) -/* Find an entry in the second-level page table.. */ -extern inline pmd_t * pmd_offset(pgd_t * dir, unsigned long address) -{ - return (pmd_t *) dir; -} - /* Find an entry in the third-level page table.. */ #define __pte_offset(address) \ (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)) @@ -308,8 +284,6 @@ extern inline pmd_t * pmd_offset(pgd_t * dir, unsigned long address) #define pte_ERROR(e) \ printk("%s:%d: bad pte %p(%08lx).\n", __FILE__, __LINE__, &(e), pte_val(e)) -#define pmd_ERROR(e) \ - printk("%s:%d: bad pmd %p(%08lx).\n", __FILE__, __LINE__, &(e), pmd_val(e)) #define pgd_ERROR(e) \ printk("%s:%d: bad pgd %p(%08lx).\n", __FILE__, __LINE__, &(e), pgd_val(e)) @@ -348,5 +322,7 @@ extern inline void update_mmu_cache(struct vm_area_struct * vma, #define pte_to_pgoff(x) (pte_val(x) >> 6) #define pgoff_to_pte(x) __pte(((x) << 6) | _PAGE_FILE) +typedef pte_t *pte_addr_t; + #endif /* __ASSEMBLY__ */ #endif /* _CRIS_PGTABLE_H */ diff --git a/include/asm-cris/processor.h b/include/asm-cris/processor.h index 623bdf0..0dc2181 100644 --- a/include/asm-cris/processor.h +++ b/include/asm-cris/processor.h @@ -55,15 +55,6 @@ unsigned long get_wchan(struct task_struct *p); #define KSTK_ESP(tsk) ((tsk) == current ? rdusp() : (tsk)->thread.usp) -/* - * Free current thread data structures etc.. - */ - -extern inline void exit_thread(void) -{ - /* Nothing needs to be done. */ -} - extern unsigned long thread_saved_pc(struct task_struct *tsk); /* Free all resources held by a thread. */ diff --git a/include/asm-cris/thread_info.h b/include/asm-cris/thread_info.h index 5ba4b78..cef0140 100644 --- a/include/asm-cris/thread_info.h +++ b/include/asm-cris/thread_info.h @@ -43,7 +43,7 @@ struct thread_info { #endif -#define PREEMPT_ACTIVE 0x4000000 +#define PREEMPT_ACTIVE 0x10000000 /* * macros/functions for gaining access to the thread information structure diff --git a/include/asm-cris/timex.h b/include/asm-cris/timex.h index 375c41a..3fb069a 100644 --- a/include/asm-cris/timex.h +++ b/include/asm-cris/timex.h @@ -14,7 +14,7 @@ * used so it does not matter. */ -typedef unsigned int cycles_t; +typedef unsigned long long cycles_t; extern inline cycles_t get_cycles(void) { diff --git a/include/asm-cris/types.h b/include/asm-cris/types.h index 41a0d45..8fa6d6c 100644 --- a/include/asm-cris/types.h +++ b/include/asm-cris/types.h @@ -52,7 +52,7 @@ typedef unsigned long long u64; typedef u32 dma_addr_t; typedef u32 dma64_addr_t; -typedef unsigned int kmem_bufctl_t; +typedef unsigned short kmem_bufctl_t; #endif /* __ASSEMBLY__ */ diff --git a/include/asm-cris/unistd.h b/include/asm-cris/unistd.h index e80bf27..28232ad 100644 --- a/include/asm-cris/unistd.h +++ b/include/asm-cris/unistd.h @@ -288,8 +288,15 @@ #define __NR_mq_timedreceive (__NR_mq_open+3) #define __NR_mq_notify (__NR_mq_open+4) #define __NR_mq_getsetattr (__NR_mq_open+5) - -#define NR_syscalls 283 +#define __NR_sys_kexec_load 283 +#define __NR_waitid 284 +/* #define __NR_sys_setaltroot 285 */ +#define __NR_add_key 286 +#define __NR_request_key 287 +#define __NR_keyctl 288 + +#define NR_syscalls 289 + #ifdef __KERNEL__ |