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Show First 20 Lines • Show All 361 Lines • ▼ Show 20 Lines	if ((lwpinfo.pl_flags & (PL_FLAG_SCE \| PL_FLAG_SCX)) != 0) {
* as rax - is preserved in orig_rax; rax gets overwritten		* as rax - is preserved in orig_rax; rax gets overwritten
* with syscall return value.		* with syscall return value.
*/		*/
l_regset->orig_rax = lwpinfo.pl_syscall_code;		l_regset->orig_rax = lwpinfo.pl_syscall_code;
}		}

return (0);		return (0);
}		}

		#define LINUX_URO(a,m) ((uintptr_t)a == offsetof(struct linux_pt_regset, m))

		int
		linux_ptrace_peekuser(struct thread td, pid_t pid, void addr, void *data)
		{
		struct linux_pt_regset reg;
		struct reg b_reg;
		uint64_t val;
		int error;

		if ((uintptr_t)addr & (sizeof(data) -1) \|\| (uintptr_t)addr < 0)
		return (EIO);
		if ((uintptr_t)addr >= sizeof(struct linux_pt_regset)) {
		LINUX_RATELIMIT_MSG_OPT1("PTRACE_PEEKUSER offset %ld "
		"not implemented; returning EINVAL", (uintptr_t)addr);
		return (EINVAL);
		}

		if (LINUX_URO(addr, fs_base))
		return (kern_ptrace(td, PT_GETFSBASE, pid, data, 0));
		if (LINUX_URO(addr, gs_base))
		return (kern_ptrace(td, PT_GETGSBASE, pid, data, 0));
		if ((error = kern_ptrace(td, PT_GETREGS, pid, &b_reg, 0)) != 0)
		return (error);
		bsd_to_linux_regset(&b_reg, &reg);
		val = *(&reg.r15 + ((uintptr_t)addr / sizeof(reg.r15)));
		return (copyout(&val, data, sizeof(val)));
		}

		#undef LINUX_URO