change the prefix from lwut_ to lwt_

we'll be using a lot of this code in kernelmode too, later.

src/arch.rs

@@ -4,15 +4,15 @@ use std::mem::{size_of, zeroed};
 use stack::Stack;
 
 extern "C" {
-  #[link_name = "lwut_bootstrap"]
+  #[link_name = "lwt_bootstrap"]
   pub fn bootstrap();
-  #[link_name = "lwut_swapcontext"]
+  #[link_name = "lwt_swapcontext"]
   pub fn swapcontext(save: *mut Registers, restore: *mut Registers);
-  #[link_name = "lwut_get_sp_limit"]
+  #[link_name = "lwt_get_sp_limit"]
   pub fn get_sp_limit() -> *const u8;
-  #[link_name = "lwut_set_sp_limit"]
+  #[link_name = "lwt_set_sp_limit"]
   pub fn set_sp_limit(limit: *const u8);
-  #[link_name = "lwut_abort"]
+  #[link_name = "lwt_abort"]
   pub fn abort() -> !;
 }
 

src/arch.s

@@ -23,8 +23,8 @@ struc context
   ctx_xmm5 resq 2
 endstruc
 
-global lwut_swapcontext
-lwut_swapcontext:
+global lwt_swapcontext
+lwt_swapcontext:
 ;; this is where the actual context switching takes place. first, save every
 ;; register in the current context into the leaving context, pointed at by rdi,
 ;; making sure the return address ends up in the IP slot. then, restore every
@@ -77,8 +77,8 @@ lwut_swapcontext:
 
   jmp [rsi+ctx_ip]
 
-global lwut_bootstrap
-lwut_bootstrap:
+global lwt_bootstrap
+lwt_bootstrap:
 ;; some of the parameter registers aren't saved on context switch, and thus
 ;; can't be set into the struct directly. thus, initialisation from Rust-land
 ;; places the parameters in unrelated registers, and we frob them into place
@@ -96,18 +96,18 @@ lwut_bootstrap:
 ;; functions, with inline assembly, but I prefer keeping all the assembly-land
 ;; stuff in here.
 
-global lwut_set_sp_limit
-lwut_set_sp_limit:
+global lwt_set_sp_limit
+lwt_set_sp_limit:
   mov [fs:0x70], rdi
   ret
 
-global lwut_get_sp_limit
-lwut_get_sp_limit:
+global lwt_get_sp_limit
+lwt_get_sp_limit:
   mov rax, [fs:0x70]
   ret
 
-global lwut_abort
-lwut_abort:
+global lwt_abort
+lwt_abort:
 ;; when a context is created for a native thread, it should only be switched
 ;; out of. if it's accidentally switched into, it'll hit this, because that's
 ;; what we set the initial IP to.

src/platform.c

@@ -7,12 +7,12 @@
 
 // Register a stack with Valgrind. start < end. Returns an integer ID that can
 // be used to deregister the stack when it's deallocated.
-unsigned int lwut_stack_register(const void *start, const void *end) {
+unsigned int lwt_stack_register(const void *start, const void *end) {
   return VALGRIND_STACK_REGISTER(start, end);
 }
 
 // Deregister a stack from Valgrind. Takes the integer ID that was returned
 // on registration.
-void lwut_stack_deregister(unsigned int id) {
+void lwt_stack_deregister(unsigned int id) {
   VALGRIND_STACK_DEREGISTER(id);
 }

src/platform.rs

@@ -1,8 +1,8 @@
 use libc;
 
 extern "C" {
-  #[link_name = "lwut_stack_register"]
+  #[link_name = "lwt_stack_register"]
   pub fn stack_register(start: *const u8, end: *const u8) -> libc::c_uint;
-  #[link_name = "lwut_stack_deregister"]
+  #[link_name = "lwt_stack_deregister"]
   pub fn stack_deregister(id: libc::c_uint);
 }