linux add ptrace_rseq_configuration

Author: devnexen

libc-test/build.rs

@@ -3027,6 +3027,8 @@ fn test_linux(target: &str) {
             // FIXME: requires >= 5.4.1 kernel headers
             "j1939_filter" if musl => true,
 
+            "ptrace_rseq_configuration" => true,
+
             _ => false,
         }
     });
@@ -3268,6 +3270,9 @@ fn test_linux(target: &str) {
             | "RTNLGRP_STATS" // linux v5.18+
                 => true,
 
+            // Added in Linux 5.13
+            "PTRACE_GET_RSEQ_CONFIGURATION" => true,
+
             _ => false,
         }
     });

libc-test/semver/linux-gnu-x86_64.txt

@@ -19,12 +19,14 @@ NFT_MSG_NEWOBJ
 PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
 PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP
 PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP
+PTRACE_GET_RSEQ_CONFIGURATION
 PTRACE_SYSEMU
 PTRACE_SYSEMU_SINGLESTEP
 _libc_fpstate
 flock64
 getcontext
 makecontext
+ptrace_rseq_configuration
 setcontext
 swapcontext
 termios2

src/unix/linux_like/linux/gnu/b64/x86_64/mod.rs

@@ -265,6 +265,14 @@ s! {
         pub seccomp_notif_resp: ::__u16,
         pub seccomp_data: ::__u16,
     }
+
+    pub struct ptrace_rseq_configuration {
+        pub rseq_abi_pointer: ::__u64,
+        pub rseq_abi_size: ::__u32,
+        pub signature: ::__u32,
+        pub flags: ::__u32,
+        pub pad: ::__u32,
+    }
 }
 
 s_no_extra_traits! {
@@ -535,6 +543,7 @@ pub const O_ASYNC: ::c_int = 0x2000;
 pub const O_NDELAY: ::c_int = 0x800;
 
 pub const PTRACE_DETACH: ::c_uint = 17;
+pub const PTRACE_GET_RSEQ_CONFIGURATION: ::c_uint = 0x420f;
 
 pub const EFD_NONBLOCK: ::c_int = 0x800;