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Differential D40095 Diff 122076 sys/compat/linux/linux_ptrace.c

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sys/compat/linux/linux_ptrace.c

Show First 20 Lines • Show All 94 Lines • ▼ Show 20 Lines#define LINUX_PTRACE_O_MASK (LINUX_PTRACE_O_TRACESYSGOOD | \
LINUX_PTRACE_O_TRACEVFORKDONE | LINUX_PTRACE_O_TRACEEXIT | \ LINUX_PTRACE_O_TRACEVFORKDONE | LINUX_PTRACE_O_TRACEEXIT | \
LINUX_PTRACE_O_TRACESECCOMP | LINUX_PTRACE_O_EXITKILL | \ LINUX_PTRACE_O_TRACESECCOMP | LINUX_PTRACE_O_EXITKILL | \
LINUX_PTRACE_O_SUSPEND_SECCOMP) LINUX_PTRACE_O_SUSPEND_SECCOMP)
#define LINUX_PTRACE_SYSCALL_INFO_NONE 0 #define LINUX_PTRACE_SYSCALL_INFO_NONE 0
#define LINUX_PTRACE_SYSCALL_INFO_ENTRY 1 #define LINUX_PTRACE_SYSCALL_INFO_ENTRY 1
#define LINUX_PTRACE_SYSCALL_INFO_EXIT 2 #define LINUX_PTRACE_SYSCALL_INFO_EXIT 2
#define LINUX_PTRACE_PEEKUSER_ORIG_RAX 120
#define LINUX_PTRACE_PEEKUSER_RIP 128
#define LINUX_PTRACE_PEEKUSER_CS 136
#define LINUX_PTRACE_PEEKUSER_DS 184
static int static int
map_signum(int lsig, int *bsigp) map_signum(int lsig, int *bsigp)
{ {
int bsig; int bsig;
if (lsig == 0) { if (lsig == 0) {
*bsigp = 0; *bsigp = 0;
return (0); return (0);
▲ Show 20 Lines • Show All 53 Lines • ▼ Show 20 Lines
{ {
int error; int error;
error = kern_ptrace(td, PT_READ_I, pid, addr, 0); error = kern_ptrace(td, PT_READ_I, pid, addr, 0);
if (error == 0) if (error == 0)
error = copyout(td->td_retval, data, sizeof(l_int)); error = copyout(td->td_retval, data, sizeof(l_int));
else if (error == ENOMEM) else if (error == ENOMEM)
error = EIO; error = EIO;
td->td_retval[0] = error;
return (error);
}
static int
linux_ptrace_peekuser(struct thread *td, pid_t pid, void *addr, void *data)
{
struct reg b_reg;
uint64_t val;
int error;
error = kern_ptrace(td, PT_GETREGS, pid, &b_reg, 0);
if (error != 0)
return (error);
switch ((uintptr_t)addr) {
#ifdef __amd64__
case LINUX_PTRACE_PEEKUSER_ORIG_RAX:
val = b_reg.r_rax;
break;
case LINUX_PTRACE_PEEKUSER_RIP:
val = b_reg.r_rip;
break;
case LINUX_PTRACE_PEEKUSER_CS:
val = b_reg.r_cs;
break;
case LINUX_PTRACE_PEEKUSER_DS:
val = b_reg.r_ds;
break;
#endif /* __amd64__ */
default:
linux_msg(td, "PTRACE_PEEKUSER offset %ld not implemented; "
"returning EINVAL", (uintptr_t)addr);
return (EINVAL);
}
error = copyout(&val, data, sizeof(val));
td->td_retval[0] = error; td->td_retval[0] = error;
return (error); return (error);
} }
static int static int
linux_ptrace_pokeuser(struct thread *td, pid_t pid, void *addr, void *data) linux_ptrace_pokeuser(struct thread *td, pid_t pid, void *addr, void *data)
{ {
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