Remove segments from push_all

src/kernel/cpu.h

@@ -4,7 +4,6 @@
 
 struct cpu_state
 {
-	uint64_t ds;
 	uint64_t r15, r14, r13, r12, r11, r10, r9,  r8;
 	uint64_t rdi, rsi, rbp, rbx, rdx, rcx, rax;
 	uint64_t interrupt, errorcode;

src/kernel/debug.cpp

@@ -34,7 +34,6 @@ print_regs(const cpu_state &regs)
 	print_reg("sp0", tss_get_stack(0));
 
 	cons->puts("\n");
-	print_reg(" ds", regs.ds);
 	print_reg(" cs", regs.cs);
 	print_reg(" ss", regs.ss);
 

src/kernel/push_all.inc

@@ -1,32 +1,31 @@
 %macro push_all_and_segments 0
-	push rax
-	push rcx
-	push rdx
-	push rbx
-	push rbp
-	push rsi
-	push rdi
+	; ss        ; rsp + a8
+	; rsp       ; rsp + a0
+	; rflags    ; rsp + 98
+	; cs        ; rsp + 90
+	; rip       ; rsp + 88
+	; error     ; rsp + 80
+	; vector    ; rsp + 78
 
-	push r8
-	push r9
-	push r10
-	push r11
-	push r12
-	push r13
-	push r14
-	push r15
+	push rax    ; rsp + 70
+	push rcx    ; rsp + 68
+	push rdx    ; rsp + 60
+	push rbx    ; rsp + 58
+	push rbp    ; rsp + 50
+	push rsi    ; rsp + 48
+	push rdi    ; rsp + 40
 
-	mov ax, ds
-	push rax
+	push r8     ; rsp + 38
+	push r9     ; rsp + 30
+	push r10    ; rsp + 28
+	push r11    ; rsp + 20
+	push r12    ; rsp + 18
+	push r13    ; rsp + 10
+	push r14    ; rsp + 08
+	push r15    ; rsp + 00
 %endmacro
 
 %macro pop_all_and_segments 0
-	pop rax
-	mov ds, ax
-	mov es, ax
-	mov fs, ax
-	mov gs, ax
-
 	pop r15
 	pop r14
 	pop r13

src/kernel/scheduler.cpp

@@ -141,7 +141,7 @@ scheduler::load_process(const char *name, const void *data, size_t size)
 
 	// Highest state in the stack is the process' kernel stack for the loader
 	// to iret to:
-	state->ds = state->ss = ss;
+	state->ss = ss;
 	state->cs = cs;
 	state->rflags = rflags_int;
 	state->rip = 0; // to be filled by the loader
@@ -151,7 +151,7 @@ scheduler::load_process(const char *name, const void *data, size_t size)
 	// iret to this which will kick off the loading:
 	cpu_state *loader_state = reinterpret_cast<cpu_state *>(sp0) - 2;
 
-	loader_state->ds = loader_state->ss = kss;
+	loader_state->ss = kss;
 	loader_state->cs = kcs;
 	loader_state->rflags = rflags_noint;
 	loader_state->rip = reinterpret_cast<uint64_t>(ramdisk_process_loader);