From c199251fbd9328e912a5d92859e9f5ed80bcc422 Mon Sep 17 00:00:00 2001
From: David Carlier <devnexen@gmail.com>
Date: Sat, 6 Nov 2021 18:53:05 +0000
Subject: [PATCH] freebsd ptrace request update

---
 libc-test/build.rs                      | 6 ++++++
 libc-test/semver/freebsd.txt            | 3 +++
 src/unix/bsd/freebsdlike/freebsd/mod.rs | 7 +++++++
 3 files changed, 16 insertions(+)

diff --git a/libc-test/build.rs b/libc-test/build.rs
index 651f25039c74c..2bf23876103d2 100644
--- a/libc-test/build.rs
+++ b/libc-test/build.rs
@@ -2034,6 +2034,9 @@ fn test_freebsd(target: &str) {
                 true
             }
 
+            // Added in FreeBSD 12.1
+            "PT_GET_SC_RET" | "PT_GET_SC_ARGS" if Some(11) == freebsd_ver => true,
+
             // Added in in FreeBSD 13.0 (r367776 and r367287)
             "SCM_CREDS2" | "LOCAL_CREDS_PERSISTENT" if Some(13) > freebsd_ver => true,
 
@@ -2065,6 +2068,9 @@ fn test_freebsd(target: &str) {
             // `procstat` is a private struct
             "procstat" => true,
 
+            // `ptrace_sc_ret` is not available in FreeBSD 11
+            "ptrace_sc_ret" if Some(11) == freebsd_ver => true,
+
             _ => false,
         }
     });
diff --git a/libc-test/semver/freebsd.txt b/libc-test/semver/freebsd.txt
index 9413be71553f0..04359e1d9041f 100644
--- a/libc-test/semver/freebsd.txt
+++ b/libc-test/semver/freebsd.txt
@@ -916,6 +916,8 @@ PT_GETLWPLIST
 PT_GETNUMLWPS
 PT_GETREGS
 PT_GET_EVENT_MASK
+PT_GET_SC_ARGS
+PT_GET_SC_RET
 PT_IO
 PT_KILL
 PT_LWPINFO
@@ -1691,6 +1693,7 @@ pthread_spinlock_t
 ptrace
 ptrace_io_desc
 ptrace_lwpinfo
+ptrace_sc_ret
 ptrace_vm_entry
 pututxline
 pwritev
diff --git a/src/unix/bsd/freebsdlike/freebsd/mod.rs b/src/unix/bsd/freebsdlike/freebsd/mod.rs
index 57ce5ab96bef5..0f23d2c383c98 100644
--- a/src/unix/bsd/freebsdlike/freebsd/mod.rs
+++ b/src/unix/bsd/freebsdlike/freebsd/mod.rs
@@ -153,6 +153,11 @@ s! {
         pub pl_syscall_narg: ::c_uint,
     }
 
+    pub struct ptrace_sc_ret {
+        pub sr_retval: [::register_t; 2],
+        pub sr_error: ::c_int,
+    }
+
     pub struct cpuset_t {
         #[cfg(target_pointer_width = "64")]
         __bits: [::c_long; 4],
@@ -1139,6 +1144,8 @@ pub const PT_FOLLOW_FORK: ::c_int = 23;
 pub const PT_LWP_EVENTS: ::c_int = 24;
 pub const PT_GET_EVENT_MASK: ::c_int = 25;
 pub const PT_SET_EVENT_MASK: ::c_int = 26;
+pub const PT_GET_SC_ARGS: ::c_int = 27;
+pub const PT_GET_SC_RET: ::c_int = 28;
 pub const PT_GETREGS: ::c_int = 33;
 pub const PT_SETREGS: ::c_int = 34;
 pub const PT_GETFPREGS: ::c_int = 35;