Sinipelto/banan-os
1
0
Fork 0
forked from Bananymous/banan-os
Code Pull Requests Activity

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

Browse Source 
This allows userspace to use both registers
This commit is contained in:
Bananymous
2025-11-10 21:48:38 +02:00
parent 7a68ce7e94
commit 89c0ff1a9d
17 changed files with 165 additions and 46 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
kernel/include/kernel/GDT.h
View File

@@ -129,7 +129,8 @@ namespace Kernel
}
#if ARCH(i686)
void set_tls(uintptr_t addr);
void set_fsbase(uintptr_t addr);
void set_gsbase(uintptr_t addr);
#endif
private:
@@ -153,8 +154,8 @@ namespace Kernel
BAN::Array<SegmentDescriptor, 7> m_gdt; // null, kernel code, kernel data, user code, user data, tss low, tss high
static constexpr uint16_t m_tss_offset = 0x28;
#elif ARCH(i686)
BAN::Array<SegmentDescriptor, 8> m_gdt; // null, kernel code, kernel data, user code, user data, processor data, tls, tss
static constexpr uint16_t m_tss_offset = 0x38;
BAN::Array<SegmentDescriptor, 9> m_gdt; // null, kernel code, kernel data, user code, user data, processor data, fsbase, gsbase, tss
static constexpr uint16_t m_tss_offset = 0x40;
#endif
TaskStateSegment m_tss;
const GDTR m_gdtr {