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um: Remove unused register save/restore functions

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These functions were only used when calling PTRACE_ARCH_PRCTL, but this
code has been removed.

Signed-off-by: Benjamin Berg <benjamin@sipsolutions.net>
Signed-off-by: Richard Weinberger <richard@nod.at>
This commit is contained in:
Benjamin Berg 2023-11-10 12:03:47 +01:00 committed by Richard Weinberger
parent 1ca1443570
commit 1e41c415e2
2 changed files with 0 additions and 22 deletions
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2
arch/um/include/shared/registers.h
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@ -14,8 +14,6 @@ extern int save_fp_registers(int pid, unsigned long *fp_regs);
extern int restore_fp_registers(int pid, unsigned long *fp_regs);
extern int save_fpx_registers(int pid, unsigned long *fp_regs);
extern int restore_fpx_registers(int pid, unsigned long *fp_regs);
extern int save_registers(int pid, struct uml_pt_regs *regs);
extern int restore_pid_registers(int pid, struct uml_pt_regs *regs);
extern int init_pid_registers(int pid);
extern void get_safe_registers(unsigned long *regs, unsigned long *fp_regs);
extern int get_fp_registers(int pid, unsigned long *regs);

20
arch/um/os-Linux/registers.c
View File

@ -11,26 +11,6 @@
#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;
}
/* This is set once at boot time and not changed thereafter */
static unsigned long exec_regs[MAX_REG_NR];