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Original file line number | Diff line number | Diff line change |
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#ifndef CRESCENT_HANDLE_H | ||
#define CRESCENT_HANDLE_H | ||
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#include <stdint.h> | ||
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#define INVALID_HANDLE ((Handle) -1) | ||
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typedef uint64_t Handle; | ||
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#endif |
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Original file line number | Diff line number | Diff line change |
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@@ -1,6 +1,12 @@ | ||
#pragma once | ||
#include "types.h" | ||
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void arch_hlt(); | ||
void arch_spinloop_hint(); | ||
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void arch_reboot(); | ||
void arch_reboot(); | ||
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#define __user __attribute__((address_space(1), noderef)) | ||
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bool arch_mem_copy_to_user(__user void* restrict user, const void* restrict kernel, usize size); | ||
bool arch_mem_copy_to_kernel(void* restrict kernel, __user const void* restrict user, usize size); |
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Original file line number | Diff line number | Diff line change |
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// bool arch_mem_copy_to_user(__user void* restrict user, const void* restrict kernel, usize size); | ||
// bool arch_mem_copy_to_kernel(void* restrict kernel, __user const void* restrict user, usize size); | ||
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#include <arch/x86/sched/usermode.inc> | ||
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.globl arch_mem_copy_to_user | ||
.globl arch_mem_copy_to_kernel | ||
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.type arch_mem_copy_to_user, @function | ||
arch_mem_copy_to_user: | ||
push %rbp | ||
mov %rsp, %rbp | ||
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lea 1f(%rip), %rax | ||
mov %rax, %gs:X86TASK_HANDLER_IP_OFF | ||
mov %rsp, %gs:X86TASK_HANDLER_SP_OFF | ||
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call memcpy | ||
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pop %rbp | ||
mov $1, %eax | ||
ret | ||
1: | ||
pop %rbp | ||
xor %eax, %eax | ||
ret | ||
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.type arch_mem_copy_to_kernel, @function | ||
arch_mem_copy_to_kernel: | ||
push %rbp | ||
mov %rsp, %rbp | ||
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lea 1f(%rip), %rax | ||
mov %rax, %gs:X86TASK_HANDLER_IP_OFF | ||
mov %rsp, %gs:X86TASK_HANDLER_SP_OFF | ||
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call memcpy | ||
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pop %rbp | ||
mov $1, %eax | ||
ret | ||
1: | ||
pop %rbp | ||
xor %eax, %eax | ||
ret |
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Original file line number | Diff line number | Diff line change |
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@@ -1,6 +1,7 @@ | ||
#ifndef USERMODE_INC | ||
#define USERMODE_INC | ||
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#define X86TASK_INSIDE_SYSCALL_OFFSET 380 | ||
#define X86TASK_HANDLER_IP_OFF 368 | ||
#define X86TASK_HANDLER_SP_OFF 376 | ||
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#endif |
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,10 @@ | ||
#pragma once | ||
#include "arch/misc.h" | ||
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static inline bool mem_copy_to_user(__user void* restrict user, const void* restrict kernel, usize size) { | ||
return arch_mem_copy_to_user(user, kernel, size); | ||
} | ||
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static inline bool mem_copy_to_kernel(void* restrict kernel, __user const void* restrict user, usize size) { | ||
return arch_mem_copy_to_kernel(kernel, user, size); | ||
} |
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