Initial ptrace compatibility for Redox OS

src/header/sys_ptrace/mod.rs

@@ -19,6 +19,8 @@ pub const PTRACE_SETFPREGS: c_int = 15;
 pub const PTRACE_ATTACH: c_int = 16;
 pub const PTRACE_DETACH: c_int = 17;
 pub const PTRACE_SYSCALL: c_int = 24;
+pub const PTRACE_SYSEMU: c_int = 31;
+pub const PTRACE_SYSEMU_SINGLESTEP: c_int = 32;
 
 // Can't use "params: ..." syntax, because... guess what? Cbingen again :(
 #[no_mangle]

src/header/sys_user/mod.rs

@@ -4,48 +4,48 @@ use platform::types::*;
 
 #[repr(C)]
 pub struct user_fpregs_struct {
-    cwd: u16,
-    swd: u16,
-    ftw: u16,
-    fop: u16,
-    rip: u64,
-    rdp: u64,
-    mxcsr: u32,
-    mxcr_mask: u32,
-    st_space: [u32; 32],
-    xmm_space: [u32; 64],
-    padding: [u32; 24],
+    pub cwd: u16,
+    pub swd: u16,
+    pub ftw: u16,
+    pub fop: u16,
+    pub rip: u64,
+    pub rdp: u64,
+    pub mxcsr: u32,
+    pub mxcr_mask: u32,
+    pub st_space: [u32; 32],
+    pub xmm_space: [u32; 64],
+    pub padding: [u32; 24],
 }
 
 #[repr(C)]
 pub struct user_regs_struct {
-    r15: c_ulong,
-    r14: c_ulong,
-    r13: c_ulong,
-    r12: c_ulong,
-    rbp: c_ulong,
-    rbx: c_ulong,
-    r11: c_ulong,
-    r10: c_ulong,
-    r9: c_ulong,
-    r8: c_ulong,
-    rax: c_ulong,
-    rcx: c_ulong,
-    rdx: c_ulong,
-    rsi: c_ulong,
-    rdi: c_ulong,
-    orig_rax: c_ulong,
-    rip: c_ulong,
-    cs: c_ulong,
-    eflags: c_ulong,
-    rsp: c_ulong,
-    ss: c_ulong,
-    fs_base: c_ulong,
-    gs_base: c_ulong,
-    ds: c_ulong,
-    es: c_ulong,
-    fs: c_ulong,
-    gs: c_ulong,
+    pub r15: c_ulong,
+    pub r14: c_ulong,
+    pub r13: c_ulong,
+    pub r12: c_ulong,
+    pub rbp: c_ulong,
+    pub rbx: c_ulong,
+    pub r11: c_ulong,
+    pub r10: c_ulong,
+    pub r9: c_ulong,
+    pub r8: c_ulong,
+    pub rax: c_ulong,
+    pub rcx: c_ulong,
+    pub rdx: c_ulong,
+    pub rsi: c_ulong,
+    pub rdi: c_ulong,
+    pub orig_rax: c_ulong,
+    pub rip: c_ulong,
+    pub cs: c_ulong,
+    pub eflags: c_ulong,
+    pub rsp: c_ulong,
+    pub ss: c_ulong,
+    pub fs_base: c_ulong,
+    pub gs_base: c_ulong,
+    pub ds: c_ulong,
+    pub es: c_ulong,
+    pub fs: c_ulong,
+    pub gs: c_ulong,
 }
 
 #[no_mangle]