Differential D32368 Diff 96989 sys/amd64/linux/linux_ptrace.c

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sys/amd64/linux/linux_ptrace.c

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{		{

linux_msg(td, "PTRACE_SEIZE not implemented; returning EINVAL");		linux_msg(td, "PTRACE_SEIZE not implemented; returning EINVAL");
return (EINVAL);		return (EINVAL);
}		}

static int		static int
linux_ptrace_get_syscall_info(struct thread *td, pid_t pid,		linux_ptrace_get_syscall_info(struct thread *td, pid_t pid,
l_ulong addr, l_ulong data)		l_ulong len, l_ulong data)
{		{
struct ptrace_lwpinfo lwpinfo;		struct ptrace_lwpinfo lwpinfo;
struct ptrace_sc_ret sr;		struct ptrace_sc_ret sr;
struct reg b_reg;		struct reg b_reg;
struct syscall_info si;		struct syscall_info si;
int error;		int error;

error = kern_ptrace(td, PT_LWPINFO, pid, &lwpinfo, sizeof(lwpinfo));		error = kern_ptrace(td, PT_LWPINFO, pid, &lwpinfo, sizeof(lwpinfo));
▲ Show 20 Lines • Show All 48 Lines • ▼ Show 20 Lines	linux_ptrace_get_syscall_info(struct thread *td, pid_t pid,
error = kern_ptrace(td, PT_GETREGS, pid, &b_reg, 0);		error = kern_ptrace(td, PT_GETREGS, pid, &b_reg, 0);
if (error != 0)		if (error != 0)
return (error);		return (error);

si.arch = LINUX_ARCH_AMD64;		si.arch = LINUX_ARCH_AMD64;
si.instruction_pointer = b_reg.r_rip;		si.instruction_pointer = b_reg.r_rip;
si.stack_pointer = b_reg.r_rsp;		si.stack_pointer = b_reg.r_rsp;

error = copyout(&si, (void *)data, sizeof(si));		len = MIN(len, sizeof(si));
		error = copyout(&si, (void *)data, len);
if (error == 0)		if (error == 0)
td->td_retval[0] = sizeof(si);		td->td_retval[0] = sizeof(si);

return (error);		return (error);
}		}

int		int
linux_ptrace(struct thread td, struct linux_ptrace_args uap)		linux_ptrace(struct thread td, struct linux_ptrace_args uap)
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