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Kernel: Change signal kernel API

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return rsp and rip are now stored per thread
This commit is contained in:
Bananymous
2023-07-23 18:33:10 +03:00
parent adb14ba373
commit f7bf6d5e62
7 changed files with 62 additions and 29 deletions
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17
kernel/arch/x86_64/IDT.cpp
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@@ -1,6 +1,7 @@
#include <BAN/Errors.h>
#include <kernel/IDT.h>
#include <kernel/InterruptController.h>
#include <kernel/InterruptStack.h>
#include <kernel/Memory/kmalloc.h>
#include <kernel/Panic.h>
#include <kernel/Process.h>
@@ -135,7 +136,7 @@ namespace IDT
"Unkown Exception 0x1F",
};
extern "C" void cpp_isr_handler(uint64_t isr, uint64_t error, const Registers* regs)
extern "C" void cpp_isr_handler(uint64_t isr, uint64_t error, Kernel::InterruptStack& interrupt_stack, const Registers* regs)
{
pid_t tid = Kernel::Scheduler::current_tid();
pid_t pid = tid ? Kernel::Process::current().pid() : 0;
@@ -154,6 +155,12 @@ namespace IDT
regs->cr0, regs->cr2, regs->cr3, regs->cr4
);
if (tid)
{
Kernel::Thread::current().set_return_rsp(interrupt_stack.rsp);
Kernel::Thread::current().set_return_rip(interrupt_stack.rip);
}
if (tid && Kernel::Thread::current().is_userspace() && !Kernel::Thread::current().is_in_syscall())
{
auto message = BAN::String::formatted("{}, aborting\n", isr_exceptions[isr]);
@@ -167,8 +174,14 @@ namespace IDT
}
}
extern "C" void cpp_irq_handler(uint64_t irq)
extern "C" void cpp_irq_handler(uint64_t irq, Kernel::InterruptStack& interrupt_stack)
{
if (Kernel::Scheduler::current_tid())
{
Kernel::Thread::current().set_return_rsp(interrupt_stack.rsp);
Kernel::Thread::current().set_return_rip(interrupt_stack.rip);
}
if (s_irq_handlers[irq])
s_irq_handlers[irq]();
else

6
kernel/arch/x86_64/interrupts.S
View File

@@ -64,7 +64,11 @@ isr_stub:
movq 176(%rsp), %rdi
movq 184(%rsp), %rsi
movq %rsp, %rdx
addq $192, %rdx
movq %rsp, %rcx
call cpp_isr_handler
addq $56, %rsp
@@ -75,6 +79,8 @@ isr_stub:
irq_stub:
pushaq
movq 0x78(%rsp), %rdi # irq number
movq %rsp, %rsi
addq $136, %rsi
call cpp_irq_handler
popaq
addq $16, %rsp