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-rw-r--r--arch/parisc/boot/compressed/vmlinux.lds.S4
-rw-r--r--arch/parisc/kernel/ptrace.c31
-rw-r--r--arch/parisc/math-emu/cnv_float.h8
-rw-r--r--arch/parisc/mm/ioremap.c12
4 files changed, 33 insertions, 22 deletions
diff --git a/arch/parisc/boot/compressed/vmlinux.lds.S b/arch/parisc/boot/compressed/vmlinux.lds.S
index a4ce3314e78e..b658f77d6369 100644
--- a/arch/parisc/boot/compressed/vmlinux.lds.S
+++ b/arch/parisc/boot/compressed/vmlinux.lds.S
@@ -40,8 +40,8 @@ SECTIONS
#endif
_startcode_end = .;
- /* bootloader code and data starts behind area of extracted kernel */
- . = (SZ_end - SZparisc_kernel_start + KERNEL_BINARY_TEXT_START);
+ /* bootloader code and data starts at least behind area of extracted kernel */
+ . = MAX(ABSOLUTE(.), (SZ_end - SZparisc_kernel_start + KERNEL_BINARY_TEXT_START));
/* align on next page boundary */
. = ALIGN(4096);
diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c
index eca5b2a1c7e1..f468a5b44508 100644
--- a/arch/parisc/kernel/ptrace.c
+++ b/arch/parisc/kernel/ptrace.c
@@ -171,6 +171,9 @@ long arch_ptrace(struct task_struct *child, long request,
if ((addr & (sizeof(unsigned long)-1)) ||
addr >= sizeof(struct pt_regs))
break;
+ if (addr == PT_IAOQ0 || addr == PT_IAOQ1) {
+ data |= 3; /* ensure userspace privilege */
+ }
if ((addr >= PT_GR1 && addr <= PT_GR31) ||
addr == PT_IAOQ0 || addr == PT_IAOQ1 ||
(addr >= PT_FR0 && addr <= PT_FR31 + 4) ||
@@ -232,16 +235,18 @@ long arch_ptrace(struct task_struct *child, long request,
static compat_ulong_t translate_usr_offset(compat_ulong_t offset)
{
- if (offset < 0)
- return sizeof(struct pt_regs);
- else if (offset <= 32*4) /* gr[0..31] */
- return offset * 2 + 4;
- else if (offset <= 32*4+32*8) /* gr[0..31] + fr[0..31] */
- return offset + 32*4;
- else if (offset < sizeof(struct pt_regs)/2 + 32*4)
- return offset * 2 + 4 - 32*8;
+ compat_ulong_t pos;
+
+ if (offset < 32*4) /* gr[0..31] */
+ pos = offset * 2 + 4;
+ else if (offset < 32*4+32*8) /* fr[0] ... fr[31] */
+ pos = (offset - 32*4) + PT_FR0;
+ else if (offset < sizeof(struct pt_regs)/2 + 32*4) /* sr[0] ... ipsw */
+ pos = (offset - 32*4 - 32*8) * 2 + PT_SR0 + 4;
else
- return sizeof(struct pt_regs);
+ pos = sizeof(struct pt_regs);
+
+ return pos;
}
long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
@@ -285,9 +290,12 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
addr = translate_usr_offset(addr);
if (addr >= sizeof(struct pt_regs))
break;
+ if (addr == PT_IAOQ0+4 || addr == PT_IAOQ1+4) {
+ data |= 3; /* ensure userspace privilege */
+ }
if (addr >= PT_FR0 && addr <= PT_FR31 + 4) {
/* Special case, fp regs are 64 bits anyway */
- *(__u64 *) ((char *) task_regs(child) + addr) = data;
+ *(__u32 *) ((char *) task_regs(child) + addr) = data;
ret = 0;
}
else if ((addr >= PT_GR1+4 && addr <= PT_GR31+4) ||
@@ -500,7 +508,8 @@ static void set_reg(struct pt_regs *regs, int num, unsigned long val)
return;
case RI(iaoq[0]):
case RI(iaoq[1]):
- regs->iaoq[num - RI(iaoq[0])] = val;
+ /* set 2 lowest bits to ensure userspace privilege: */
+ regs->iaoq[num - RI(iaoq[0])] = val | 3;
return;
case RI(sar): regs->sar = val;
return;
diff --git a/arch/parisc/math-emu/cnv_float.h b/arch/parisc/math-emu/cnv_float.h
index 933423fa5144..b0db61188a61 100644
--- a/arch/parisc/math-emu/cnv_float.h
+++ b/arch/parisc/math-emu/cnv_float.h
@@ -60,19 +60,19 @@
((exponent < (SGL_P - 1)) ? \
(Sall(sgl_value) << (SGL_EXP_LENGTH + 1 + exponent)) : FALSE)
-#define Int_isinexact_to_sgl(int_value) (int_value << 33 - SGL_EXP_LENGTH)
+#define Int_isinexact_to_sgl(int_value) ((int_value << 33 - SGL_EXP_LENGTH) != 0)
#define Sgl_roundnearest_from_int(int_value,sgl_value) \
if (int_value & 1<<(SGL_EXP_LENGTH - 2)) /* round bit */ \
- if ((int_value << 34 - SGL_EXP_LENGTH) || Slow(sgl_value)) \
+ if (((int_value << 34 - SGL_EXP_LENGTH) != 0) || Slow(sgl_value)) \
Sall(sgl_value)++
#define Dint_isinexact_to_sgl(dint_valueA,dint_valueB) \
- ((Dintp1(dint_valueA) << 33 - SGL_EXP_LENGTH) || Dintp2(dint_valueB))
+ (((Dintp1(dint_valueA) << 33 - SGL_EXP_LENGTH) != 0) || Dintp2(dint_valueB))
#define Sgl_roundnearest_from_dint(dint_valueA,dint_valueB,sgl_value) \
if (Dintp1(dint_valueA) & 1<<(SGL_EXP_LENGTH - 2)) \
- if ((Dintp1(dint_valueA) << 34 - SGL_EXP_LENGTH) || \
+ if (((Dintp1(dint_valueA) << 34 - SGL_EXP_LENGTH) != 0) || \
Dintp2(dint_valueB) || Slow(sgl_value)) Sall(sgl_value)++
#define Dint_isinexact_to_dbl(dint_value) \
diff --git a/arch/parisc/mm/ioremap.c b/arch/parisc/mm/ioremap.c
index 92a9b5f12f98..f29f682352f0 100644
--- a/arch/parisc/mm/ioremap.c
+++ b/arch/parisc/mm/ioremap.c
@@ -3,7 +3,7 @@
* arch/parisc/mm/ioremap.c
*
* (C) Copyright 1995 1996 Linus Torvalds
- * (C) Copyright 2001-2006 Helge Deller <deller@gmx.de>
+ * (C) Copyright 2001-2019 Helge Deller <deller@gmx.de>
* (C) Copyright 2005 Kyle McMartin <kyle@parisc-linux.org>
*/
@@ -84,7 +84,7 @@ void __iomem * __ioremap(unsigned long phys_addr, unsigned long size, unsigned l
addr = (void __iomem *) area->addr;
if (ioremap_page_range((unsigned long)addr, (unsigned long)addr + size,
phys_addr, pgprot)) {
- vfree(addr);
+ vunmap(addr);
return NULL;
}
@@ -92,9 +92,11 @@ void __iomem * __ioremap(unsigned long phys_addr, unsigned long size, unsigned l
}
EXPORT_SYMBOL(__ioremap);
-void iounmap(const volatile void __iomem *addr)
+void iounmap(const volatile void __iomem *io_addr)
{
- if (addr > high_memory)
- return vfree((void *) (PAGE_MASK & (unsigned long __force) addr));
+ unsigned long addr = (unsigned long)io_addr & PAGE_MASK;
+
+ if (is_vmalloc_addr((void *)addr))
+ vunmap((void *)addr);
}
EXPORT_SYMBOL(iounmap);
generated by cgit v1.2.3 (git 2.0.4) at 2024-04-27 07:54:24 +0000