From c1e4c1d53d2a4ac3899bfb812f583d9b72717694 Mon Sep 17 00:00:00 2001
From: Red Bear OS <build@redbearos.org>
Date: Wed, 8 Jul 2026 17:58:11 +0300
Subject: [PATCH] relibc: use /scheme/proc/{pid}/ctx for ptrace GETREGS/SETREGS

---
 src/platform/redox/ptrace.rs | 26 ++++++++++----------------
 1 file changed, 10 insertions(+), 16 deletions(-)

diff --git a/src/platform/redox/ptrace.rs b/src/platform/redox/ptrace.rs
index eef280d46b..b419ab7272 100644
--- a/src/platform/redox/ptrace.rs
+++ b/src/platform/redox/ptrace.rs
@@ -35,9 +35,8 @@ use syscall;
 
 pub struct Session {
     pub first: bool,
-    pub fpregs: File,
     pub mem: File,
-    pub regs: File,
+    pub ctx: File,
     pub tracer: File,
 }
 pub struct State {
@@ -94,16 +93,8 @@ pub fn get_session(
                         CStr::borrow(&CString::new(format!("/scheme/proc/{}/mem", pid)).unwrap()),
                         NEW_FLAGS,
                     )?,
-                    regs: File::open(
-                        CStr::borrow(
-                            &CString::new(format!("/scheme/proc/{}/regs/int", pid)).unwrap(),
-                        ),
-                        NEW_FLAGS,
-                    )?,
-                    fpregs: File::open(
-                        CStr::borrow(
-                            &CString::new(format!("/scheme/proc/{}/regs/float", pid)).unwrap(),
-                        ),
+                    ctx: File::open(
+                        CStr::borrow(&CString::new(format!("/scheme/proc/{}/ctx", pid)).unwrap()),
                         NEW_FLAGS,
                     )?,
                 }))
@@ -194,8 +185,9 @@ unsafe fn inner_ptrace(
         }
         sys_ptrace::PTRACE_GETREGS => {
             let c_regs = unsafe { &mut *(data as *mut user_regs_struct) };
-            let mut redox_regs = syscall::IntRegisters::default();
-            (&mut &session.regs).read(&mut redox_regs)?;
+            let mut full = syscall::FullContextRegs::default();
+            (&mut &session.ctx).read(&mut full)?;
+            let redox_regs = full.int;
             *c_regs = user_regs_struct {
                 r15: redox_regs.r15 as _,
                 r14: redox_regs.r14 as _,
@@ -229,7 +221,9 @@ unsafe fn inner_ptrace(
         }
         sys_ptrace::PTRACE_SETREGS => {
             let c_regs = unsafe { &*(data as *mut user_regs_struct) };
-            let redox_regs = syscall::IntRegisters {
+            let mut full = syscall::FullContextRegs::default();
+            (&mut &session.ctx).read(&mut full)?;
+            full.int = syscall::IntRegisters {
                 r15: c_regs.r15 as _,
                 r14: c_regs.r14 as _,
                 r13: c_regs.r13 as _,
@@ -258,7 +252,7 @@ unsafe fn inner_ptrace(
                 // fs: c_regs.fs as _,
                 // gs: c_regs.gs as _,
             };
-            (&mut &session.regs).write(&redox_regs)?;
+            (&mut &session.ctx).write(&full)?;
             Ok(0)
         }
         _ => unimplemented!(),