Moves macros to top-level (#1070)

Cargo.toml

@@ -4,11 +4,11 @@ members = [
     "arch/x86-64",
     "gui",
     "kernel",
+    "macros",
     "src/fs",
     "src/gmtx",
     "src/kernel",
     "src/llt",
-    "src/macros",
     "src/obconf",
     "src/param",
     "src/pfs",

kernel/Cargo.toml

@@ -7,7 +7,7 @@ edition = "2021"
 anstyle = { version = "1.0.8", default-features = false }
 bitfield-struct = "0.8.0"
 hashbrown = "0.14.5"
-macros = { path = "../src/macros" }
+macros = { path = "../macros" }
 obconf = { path = "../src/obconf", features = ["virt"] }
 spin = { version = "0.9.8", features = ["spin_mutex"], default-features = false }
 talc = { version = "4.4.1", default-features = false }

kernel/src/x86_64.rs

@@ -128,7 +128,7 @@ pub unsafe fn setup_main_cpu() {
     let mask = Rflags::new()
         .with_cf(true)
         .with_tf(true)
-        .with_if(true)
+        .with_if(true) // https://wiki.osdev.org/SWAPGS#Complications,_Part_2
         .with_df(true)
         .with_nt(true)
         .into_bits()
@@ -192,9 +192,9 @@ global_asm!(
 );
 
 // See Xfast_syscall on the PS4 for a reference.
-global_asm!("syscall_entry64:", "ud2");
+global_asm!("syscall_entry64:", "swapgs", "ud2");
 
-// See fast_syscall32 on the PS4 for a reference.
+// See Xfast_syscall32 on the PS4 for a reference.
 global_asm!("syscall_entry32:", "ud2");
 
 /// Raw value of a Global Descriptor-Table Register.

src/kernel/Cargo.toml

@@ -14,7 +14,7 @@ gmtx = { path = "../gmtx" }
 iced-x86 = { version = "1.18", features = ["code_asm"] }
 libc = "0.2"
 llt = { path = "../llt" }
-macros = { path = "../macros" }
+macros = { path = "../../macros" }
 param = { path = "../param" }
 serde = { version = "1.0", features = ["derive"] }
 serde_yaml = "0.9"