aboutsummaryrefslogtreecommitdiff
path: root/arch/sh/kernel/vsyscall
diff options
context:
space:
mode:
Diffstat (limited to 'arch/sh/kernel/vsyscall')
-rw-r--r--arch/sh/kernel/vsyscall/Makefile2
-rw-r--r--arch/sh/kernel/vsyscall/vsyscall-sigreturn.S35
-rw-r--r--arch/sh/kernel/vsyscall/vsyscall-trapa.S21
-rw-r--r--arch/sh/kernel/vsyscall/vsyscall.c10
4 files changed, 49 insertions, 19 deletions
diff --git a/arch/sh/kernel/vsyscall/Makefile b/arch/sh/kernel/vsyscall/Makefile
index 4bbce1cfa35..8f0ea5fc835 100644
--- a/arch/sh/kernel/vsyscall/Makefile
+++ b/arch/sh/kernel/vsyscall/Makefile
@@ -15,7 +15,7 @@ quiet_cmd_syscall = SYSCALL $@
export CPPFLAGS_vsyscall.lds += -P -C -Ush
vsyscall-flags = -shared -s -Wl,-soname=linux-gate.so.1 \
- $(call ld-option, -Wl$(comma)--hash-style=sysv)
+ $(call cc-ldoption, -Wl$(comma)--hash-style=sysv)
SYSCFLAGS_vsyscall-trapa.so = $(vsyscall-flags)
diff --git a/arch/sh/kernel/vsyscall/vsyscall-sigreturn.S b/arch/sh/kernel/vsyscall/vsyscall-sigreturn.S
index 555a64f124c..23af1758405 100644
--- a/arch/sh/kernel/vsyscall/vsyscall-sigreturn.S
+++ b/arch/sh/kernel/vsyscall/vsyscall-sigreturn.S
@@ -34,6 +34,41 @@ __kernel_rt_sigreturn:
1: .short __NR_rt_sigreturn
.LEND_rt_sigreturn:
.size __kernel_rt_sigreturn,.-.LSTART_rt_sigreturn
+ .previous
.section .eh_frame,"a",@progbits
+.LCIE1:
+ .ualong .LCIE1_end - .LCIE1_start
+.LCIE1_start:
+ .ualong 0 /* CIE ID */
+ .byte 0x1 /* Version number */
+ .string "zRS" /* NUL-terminated augmentation string */
+ .uleb128 0x1 /* Code alignment factor */
+ .sleb128 -4 /* Data alignment factor */
+ .byte 0x11 /* Return address register column */
+ .uleb128 0x1 /* Augmentation length and data */
+ .byte 0x1b /* DW_EH_PE_pcrel | DW_EH_PE_sdata4. */
+ .byte 0xc, 0xf, 0x0 /* DW_CFA_def_cfa: r15 ofs 0 */
+
+ .align 2
+.LCIE1_end:
+
+ .ualong .LFDE0_end-.LFDE0_start /* Length FDE0 */
+.LFDE0_start:
+ .ualong .LFDE0_start-.LCIE1 /* CIE pointer */
+ .ualong .LSTART_sigreturn-. /* PC-relative start address */
+ .ualong .LEND_sigreturn-.LSTART_sigreturn
+ .uleb128 0 /* Augmentation */
+ .align 2
+.LFDE0_end:
+
+ .ualong .LFDE1_end-.LFDE1_start /* Length FDE1 */
+.LFDE1_start:
+ .ualong .LFDE1_start-.LCIE1 /* CIE pointer */
+ .ualong .LSTART_rt_sigreturn-. /* PC-relative start address */
+ .ualong .LEND_rt_sigreturn-.LSTART_rt_sigreturn
+ .uleb128 0 /* Augmentation */
+ .align 2
+.LFDE1_end:
+
.previous
diff --git a/arch/sh/kernel/vsyscall/vsyscall-trapa.S b/arch/sh/kernel/vsyscall/vsyscall-trapa.S
index 3b6eb34c43f..0eb74d00690 100644
--- a/arch/sh/kernel/vsyscall/vsyscall-trapa.S
+++ b/arch/sh/kernel/vsyscall/vsyscall-trapa.S
@@ -3,9 +3,8 @@
.type __kernel_vsyscall,@function
__kernel_vsyscall:
.LSTART_vsyscall:
- /* XXX: We'll have to do something here once we opt to use the vDSO
- * page for something other than the signal trampoline.. as well as
- * fill out .eh_frame -- PFM. */
+ trapa #0x10
+ nop
.LEND_vsyscall:
.size __kernel_vsyscall,.-.LSTART_vsyscall
.previous
@@ -16,24 +15,22 @@ __kernel_vsyscall:
.LCIE_start:
.ualong 0 /* CIE ID */
.byte 0x1 /* Version number */
- .string "zRS" /* NUL-terminated augmentation string */
+ .string "zR" /* NUL-terminated augmentation string */
.uleb128 0x1 /* Code alignment factor */
.sleb128 -4 /* Data alignment factor */
.byte 0x11 /* Return address register column */
- /* Augmentation length and data (none) */
- .byte 0xc /* DW_CFA_def_cfa */
- .uleb128 0xf /* r15 */
- .uleb128 0x0 /* offset 0 */
-
+ .uleb128 0x1 /* Augmentation length and data */
+ .byte 0x1b /* DW_EH_PE_pcrel | DW_EH_PE_sdata4. */
+ .byte 0xc,0xf,0x0 /* DW_CFA_def_cfa: r15 ofs 0 */
.align 2
.LCIE_end:
.ualong .LFDE_end-.LFDE_start /* Length FDE */
.LFDE_start:
- .ualong .LCIE /* CIE pointer */
- .ualong .LSTART_vsyscall-. /* start address */
+ .ualong .LFDE_start-.LCIE /* CIE pointer */
+ .ualong .LSTART_vsyscall-. /* PC-relative start address */
.ualong .LEND_vsyscall-.LSTART_vsyscall
- .uleb128 0
+ .uleb128 0 /* Augmentation */
.align 2
.LFDE_end:
.previous
diff --git a/arch/sh/kernel/vsyscall/vsyscall.c b/arch/sh/kernel/vsyscall/vsyscall.c
index 3f7e415be86..5ca579720a0 100644
--- a/arch/sh/kernel/vsyscall/vsyscall.c
+++ b/arch/sh/kernel/vsyscall/vsyscall.c
@@ -11,7 +11,6 @@
* for more details.
*/
#include <linux/mm.h>
-#include <linux/slab.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/gfp.h>
@@ -74,8 +73,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
ret = install_special_mapping(mm, addr, PAGE_SIZE,
VM_READ | VM_EXEC |
- VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC |
- VM_ALWAYSDUMP,
+ VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC,
syscall_pages);
if (unlikely(ret))
goto up_fail;
@@ -95,17 +93,17 @@ const char *arch_vma_name(struct vm_area_struct *vma)
return NULL;
}
-struct vm_area_struct *get_gate_vma(struct task_struct *task)
+struct vm_area_struct *get_gate_vma(struct mm_struct *mm)
{
return NULL;
}
-int in_gate_area(struct task_struct *task, unsigned long address)
+int in_gate_area(struct mm_struct *mm, unsigned long address)
{
return 0;
}
-int in_gate_area_no_task(unsigned long address)
+int in_gate_area_no_mm(unsigned long address)
{
return 0;
}