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-rw-r--r--arch/um/kernel/dyn.lds.S12
-rw-r--r--arch/um/kernel/uml.lds.S11
-rw-r--r--arch/um/os-Linux/sys-x86_64/registers.c15
-rw-r--r--arch/um/sys-x86_64/ptrace.c6
4 files changed, 28 insertions, 16 deletions
diff --git a/arch/um/kernel/dyn.lds.S b/arch/um/kernel/dyn.lds.S
index 2454774..4185090 100644
--- a/arch/um/kernel/dyn.lds.S
+++ b/arch/um/kernel/dyn.lds.S
@@ -71,11 +71,13 @@ SECTIONS
*(.gnu.warning)
. = ALIGN(4096);
- __syscall_stub_start = .;
- *(.__syscall_stub*)
- __syscall_stub_end = .;
- . = ALIGN(4096);
} =0x90909090
+ . = ALIGN(4096);
+ .syscall_stub : {
+ __syscall_stub_start = .;
+ *(.__syscall_stub*)
+ __syscall_stub_end = .;
+ }
.fini : {
KEEP (*(.fini))
} =0x90909090
@@ -138,8 +140,8 @@ SECTIONS
.got : { *(.got.plt) *(.got) }
_edata = .;
PROVIDE (edata = .);
- __bss_start = .;
.bss : {
+ __bss_start = .;
*(.dynbss)
*(.bss .bss.* .gnu.linkonce.b.*)
*(COMMON)
diff --git a/arch/um/kernel/uml.lds.S b/arch/um/kernel/uml.lds.S
index 307b937..81acdc2 100644
--- a/arch/um/kernel/uml.lds.S
+++ b/arch/um/kernel/uml.lds.S
@@ -44,12 +44,13 @@ SECTIONS
/* .gnu.warning sections are handled specially by elf32.em. */
*(.gnu.warning)
*(.gnu.linkonce.t*)
+ }
- . = ALIGN(4096);
- __syscall_stub_start = .;
- *(.__syscall_stub*)
- __syscall_stub_end = .;
- . = ALIGN(4096);
+ . = ALIGN(4096);
+ .syscall_stub : {
+ __syscall_stub_start = .;
+ *(.__syscall_stub*)
+ __syscall_stub_end = .;
}
#include "asm/common.lds.S"
diff --git a/arch/um/os-Linux/sys-x86_64/registers.c b/arch/um/os-Linux/sys-x86_64/registers.c
index e6fc217..9467315 100644
--- a/arch/um/os-Linux/sys-x86_64/registers.c
+++ b/arch/um/os-Linux/sys-x86_64/registers.c
@@ -4,6 +4,7 @@
*/
#include <errno.h>
+#include <sys/ptrace.h>
#include <string.h>
#include "ptrace_user.h"
#include "uml-config.h"
@@ -17,6 +18,20 @@
static unsigned long exec_regs[MAX_REG_NR];
static unsigned long exec_fp_regs[HOST_FP_SIZE];
+int save_fp_registers(int pid, unsigned long *fp_regs)
+{
+ if(ptrace(PTRACE_GETFPREGS, pid, 0, fp_regs) < 0)
+ return -errno;
+ return 0;
+}
+
+int restore_fp_registers(int pid, unsigned long *fp_regs)
+{
+ if(ptrace(PTRACE_SETFPREGS, pid, 0, fp_regs) < 0)
+ return -errno;
+ return 0;
+}
+
void init_thread_registers(union uml_pt_regs *to)
{
memcpy(to->skas.regs, exec_regs, sizeof(to->skas.regs));
diff --git a/arch/um/sys-x86_64/ptrace.c b/arch/um/sys-x86_64/ptrace.c
index 55b66e0..1970d78 100644
--- a/arch/um/sys-x86_64/ptrace.c
+++ b/arch/um/sys-x86_64/ptrace.c
@@ -156,12 +156,6 @@ int is_syscall(unsigned long addr)
return(instr == 0x050f);
}
-int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu )
-{
- panic("dump_fpu");
- return(1);
-}
-
int get_fpregs(unsigned long buf, struct task_struct *child)
{
panic("get_fpregs");