Kernel/LibC: Replace SYS_{GET,SET}_TLS with SYS_{SET,GET}_{FS,GS}BASE

This allows userspace to use both registers
2025-11-10 21:48:38 +02:00
parent 7a68ce7e94
commit 89c0ff1a9d
17 changed files with 165 additions and 46 deletions
--- a/kernel/arch/x86_64/Syscall.S
+++ b/kernel/arch/x86_64/Syscall.S
@@ -2,6 +2,7 @@
 // System V ABI: RDI, RSI, RDX, RCX, R8, R9
 .global asm_syscall_handler
 asm_syscall_handler:
+	swapgs
 	pushq %rbx
 	pushq %rcx
 	pushq %rdx
@@ -42,9 +43,9 @@ asm_syscall_handler:
 	popq %rdx
 	popq %rcx
 	popq %rbx
+	swapgs
 	iretq

-
 .global sys_fork_trampoline
 sys_fork_trampoline:
 	pushq %rbx