diff options
Diffstat (limited to 'arch/cris')
| -rw-r--r-- | arch/cris/Kconfig | 7 | ||||
| -rw-r--r-- | arch/cris/arch-v10/kernel/ptrace.c | 20 | ||||
| -rw-r--r-- | arch/cris/arch-v32/kernel/ptrace.c | 16 | ||||
| -rw-r--r-- | arch/cris/include/asm/pgtable.h | 2 |
4 files changed, 18 insertions, 27 deletions
diff --git a/arch/cris/Kconfig b/arch/cris/Kconfig index aefe3b1..613e628 100644 --- a/arch/cris/Kconfig +++ b/arch/cris/Kconfig @@ -1,10 +1,3 @@ -# -# For a description of the syntax of this configuration file, -# see the Configure script. -# - -mainmenu "Linux/CRIS Kernel Configuration" - config MMU bool default y diff --git a/arch/cris/arch-v10/kernel/ptrace.c b/arch/cris/arch-v10/kernel/ptrace.c index e70c804..320065f 100644 --- a/arch/cris/arch-v10/kernel/ptrace.c +++ b/arch/cris/arch-v10/kernel/ptrace.c @@ -76,9 +76,11 @@ ptrace_disable(struct task_struct *child) * (in user space) where the result of the ptrace call is written (instead of * being returned). */ -long arch_ptrace(struct task_struct *child, long request, long addr, long data) +long arch_ptrace(struct task_struct *child, long request, + unsigned long addr, unsigned long data) { int ret; + unsigned int regno = addr >> 2; unsigned long __user *datap = (unsigned long __user *)data; switch (request) { @@ -93,10 +95,10 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) unsigned long tmp; ret = -EIO; - if ((addr & 3) || addr < 0 || addr > PT_MAX << 2) + if ((addr & 3) || regno > PT_MAX) break; - tmp = get_reg(child, addr >> 2); + tmp = get_reg(child, regno); ret = put_user(tmp, datap); break; } @@ -110,19 +112,17 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) /* Write the word at location address in the USER area. */ case PTRACE_POKEUSR: ret = -EIO; - if ((addr & 3) || addr < 0 || addr > PT_MAX << 2) + if ((addr & 3) || regno > PT_MAX) break; - addr >>= 2; - - if (addr == PT_DCCR) { + if (regno == PT_DCCR) { /* don't allow the tracing process to change stuff like * interrupt enable, kernel/user bit, dma enables etc. */ data &= DCCR_MASK; data |= get_reg(child, PT_DCCR) & ~DCCR_MASK; } - if (put_reg(child, addr, data)) + if (put_reg(child, regno, data)) break; ret = 0; break; @@ -141,7 +141,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) break; } - data += sizeof(long); + datap++; } break; @@ -165,7 +165,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) } put_reg(child, i, tmp); - data += sizeof(long); + datap++; } break; diff --git a/arch/cris/arch-v32/kernel/ptrace.c b/arch/cris/arch-v32/kernel/ptrace.c index f4ebd1e..511ece9 100644 --- a/arch/cris/arch-v32/kernel/ptrace.c +++ b/arch/cris/arch-v32/kernel/ptrace.c @@ -126,9 +126,11 @@ ptrace_disable(struct task_struct *child) } -long arch_ptrace(struct task_struct *child, long request, long addr, long data) +long arch_ptrace(struct task_struct *child, long request, + unsigned long addr, unsigned long data) { int ret; + unsigned int regno = addr >> 2; unsigned long __user *datap = (unsigned long __user *)data; switch (request) { @@ -163,10 +165,10 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) unsigned long tmp; ret = -EIO; - if ((addr & 3) || addr < 0 || addr > PT_MAX << 2) + if ((addr & 3) || regno > PT_MAX) break; - tmp = get_reg(child, addr >> 2); + tmp = get_reg(child, regno); ret = put_user(tmp, datap); break; } @@ -180,19 +182,17 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) /* Write the word at location address in the USER area. */ case PTRACE_POKEUSR: ret = -EIO; - if ((addr & 3) || addr < 0 || addr > PT_MAX << 2) + if ((addr & 3) || regno > PT_MAX) break; - addr >>= 2; - - if (addr == PT_CCS) { + if (regno == PT_CCS) { /* don't allow the tracing process to change stuff like * interrupt enable, kernel/user bit, dma enables etc. */ data &= CCS_MASK; data |= get_reg(child, PT_CCS) & ~CCS_MASK; } - if (put_reg(child, addr, data)) + if (put_reg(child, regno, data)) break; ret = 0; break; diff --git a/arch/cris/include/asm/pgtable.h b/arch/cris/include/asm/pgtable.h index f63d6fc..9eaae21 100644 --- a/arch/cris/include/asm/pgtable.h +++ b/arch/cris/include/asm/pgtable.h @@ -248,10 +248,8 @@ static inline pgd_t * pgd_offset(const struct mm_struct *mm, unsigned long addre ((pte_t *) pmd_page_vaddr(*(dir)) + __pte_offset(address)) #define pte_offset_map(dir, address) \ ((pte_t *)page_address(pmd_page(*(dir))) + __pte_offset(address)) -#define pte_offset_map_nested(dir, address) pte_offset_map(dir, address) #define pte_unmap(pte) do { } while (0) -#define pte_unmap_nested(pte) do { } while (0) #define pte_pfn(x) ((unsigned long)(__va((x).pte)) >> PAGE_SHIFT) #define pfn_pte(pfn, prot) __pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot)) |