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Update kernel

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This commit is contained in:
Alex
2023-08-06 04:53:14 +03:00
parent 3b65386399
commit 2c51e4432f
181 changed files with 21873 additions and 21475 deletions
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10
Architecture/amd64/SystemCalls.cpp
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@@ -31,11 +31,11 @@ extern "C" void SystemCallHandlerStub();
extern "C" __naked __used __no_stack_protector __aligned(16) void SystemCallHandlerStub()
{
asmv("swapgs\n"); /* Swap GS to get the TCB */
asmv("mov %rsp, %gs:0x8\n"); /* We save the current rsp to TCB->TempStack */
asmv("mov %gs:0x0, %rsp\n"); /* Get TCB->SystemCallStack and set it as rsp */
asmv("swapgs\n"); /* Swap GS to get the gsTCB */
asmv("mov %rsp, %gs:0x8\n"); /* We save the current rsp to gsTCB->TempStack */
asmv("mov %gs:0x0, %rsp\n"); /* Get gsTCB->SystemCallStack and set it as rsp */
asmv("push $0x1b\n"); /* Push user data segment for SyscallsFrame */
asmv("push %gs:0x8\n"); /* Push TCB->TempStack (old rsp) for SyscallsFrame */
asmv("push %gs:0x8\n"); /* Push gsTCB->TempStack (old rsp) for SyscallsFrame */
asmv("push %r11\n"); /* Push the flags for SyscallsFrame */
asmv("push $0x23\n"); /* Push user code segment for SyscallsFrame */
asmv("push %rcx\n"); /* Push the return address for SyscallsFrame + sysretq (https://www.felixcloutier.com/x86/sysret) */
@@ -78,7 +78,7 @@ extern "C" __naked __used __no_stack_protector __aligned(16) void SystemCallHand
"pop %rcx\n"
"pop %rbx\n");
/* Restore rsp from TCB->TempStack */
/* Restore rsp from gsTCB->TempStack */
asmv("mov %gs:0x8, %rsp\n");
#ifdef DEBUG
/* Easier to debug stacks */