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Diffstat (limited to 'arch/um/os-Linux/registers.c')
-rw-r--r--arch/um/os-Linux/registers.c31
1 files changed, 8 insertions, 23 deletions
diff --git a/arch/um/os-Linux/registers.c b/arch/um/os-Linux/registers.c
index b123955be7ac..d7ca148807b2 100644
--- a/arch/um/os-Linux/registers.c
+++ b/arch/um/os-Linux/registers.c
@@ -10,31 +10,12 @@
#include <sysdep/ptrace.h>
#include <sysdep/ptrace_user.h>
#include <registers.h>
-
-int save_registers(int pid, struct uml_pt_regs *regs)
-{
- int err;
-
- err = ptrace(PTRACE_GETREGS, pid, 0, regs->gp);
- if (err < 0)
- return -errno;
- return 0;
-}
-
-int restore_pid_registers(int pid, struct uml_pt_regs *regs)
-{
- int err;
-
- err = ptrace(PTRACE_SETREGS, pid, 0, regs->gp);
- if (err < 0)
- return -errno;
- return 0;
-}
+#include <stdlib.h>
/* This is set once at boot time and not changed thereafter */
static unsigned long exec_regs[MAX_REG_NR];
-static unsigned long exec_fp_regs[FP_SIZE];
+static unsigned long *exec_fp_regs;
int init_pid_registers(int pid)
{
@@ -44,7 +25,11 @@ int init_pid_registers(int pid)
if (err < 0)
return -errno;
- arch_init_registers(pid);
+ err = arch_init_registers(pid);
+ if (err < 0)
+ return err;
+
+ exec_fp_regs = malloc(host_fp_size);
get_fp_registers(pid, exec_fp_regs);
return 0;
}
@@ -54,5 +39,5 @@ void get_safe_registers(unsigned long *regs, unsigned long *fp_regs)
memcpy(regs, exec_regs, sizeof(exec_regs));
if (fp_regs)
- memcpy(fp_regs, exec_fp_regs, sizeof(exec_fp_regs));
+ memcpy(fp_regs, exec_fp_regs, host_fp_size);
}