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https://github.com/RGBCube/serenity
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Kernel: Replace raw asm functions with naked ones
This commit is contained in:
Hendiadyoin1
Gunnar Beutner
parent
c830de4983
commit
9b7e48c6bd
7 changed files with 203 additions and 202 deletions
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@ -42,122 +42,122 @@ static EntropySource s_entropy_source_interrupts { EntropySource::Static::Interr
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// clang-format off
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#if ARCH(I386)
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#define EH_ENTRY(ec, title) \
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extern "C" void title##_asm_entry(); \
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extern "C" void title##_handler(TrapFrame*) __attribute__((used)); \
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asm( \
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".globl " #title "_asm_entry\n" \
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"" #title "_asm_entry: \n" \
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" pusha\n" \
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" pushl %ds\n" \
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" pushl %es\n" \
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" pushl %fs\n" \
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" pushl %gs\n" \
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" pushl %ss\n" \
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" mov $" __STRINGIFY(GDT_SELECTOR_DATA0) ", %ax\n" \
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" mov %ax, %ds\n" \
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" mov %ax, %es\n" \
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" mov $" __STRINGIFY(GDT_SELECTOR_PROC) ", %ax\n" \
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" mov %ax, %gs\n" \
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" pushl %esp \n" /* set TrapFrame::regs */ \
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" subl $" __STRINGIFY(TRAP_FRAME_SIZE - 4) ", %esp \n" \
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" pushl %esp \n" \
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" cld\n" \
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" call enter_trap_no_irq \n" \
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" call " #title "_handler\n" \
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" jmp common_trap_exit \n");
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#define EH_ENTRY(ec, title) \
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extern "C" void title##_asm_entry(); \
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extern "C" void title##_handler(TrapFrame*) __attribute__((used)); \
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NAKED void title##_asm_entry(){ \
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asm( \
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" pusha\n" \
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" pushl %ds\n" \
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" pushl %es\n" \
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" pushl %fs\n" \
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" pushl %gs\n" \
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" pushl %ss\n" \
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" mov $" __STRINGIFY(GDT_SELECTOR_DATA0) ", %ax\n" \
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" mov %ax, %ds\n" \
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" mov %ax, %es\n" \
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" mov $" __STRINGIFY(GDT_SELECTOR_PROC) ", %ax\n" \
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" mov %ax, %gs\n" \
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" pushl %esp \n" /* set TrapFrame::regs */ \
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" subl $" __STRINGIFY(TRAP_FRAME_SIZE - 4) ", %esp \n" \
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" pushl %esp \n" \
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" cld\n" \
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" call enter_trap_no_irq \n" \
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" call " #title "_handler\n" \
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" jmp common_trap_exit \n"); \
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}
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#define EH_ENTRY_NO_CODE(ec, title) \
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extern "C" void title##_asm_entry(); \
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extern "C" void title##_handler(TrapFrame*) __attribute__((used)); \
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asm( \
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".globl " #title "_asm_entry\n" \
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"" #title "_asm_entry: \n" \
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" pushl $0x0\n" \
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" pusha\n" \
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" pushl %ds\n" \
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" pushl %es\n" \
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" pushl %fs\n" \
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" pushl %gs\n" \
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" pushl %ss\n" \
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" mov $" __STRINGIFY(GDT_SELECTOR_DATA0) ", %ax\n" \
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" mov %ax, %ds\n" \
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" mov %ax, %es\n" \
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" mov $" __STRINGIFY(GDT_SELECTOR_PROC) ", %ax\n" \
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" mov %ax, %gs\n" \
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" pushl %esp \n" /* set TrapFrame::regs */ \
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" subl $" __STRINGIFY(TRAP_FRAME_SIZE - 4) ", %esp \n" \
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" pushl %esp \n" \
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" cld\n" \
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" call enter_trap_no_irq \n" \
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" call " #title "_handler\n" \
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" jmp common_trap_exit \n");
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#define EH_ENTRY_NO_CODE(ec, title) \
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extern "C" void title##_asm_entry(); \
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extern "C" void title##_handler(TrapFrame*) __attribute__((used)); \
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NAKED void title##_asm_entry(){ \
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asm( \
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" pushl $0x0\n" \
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" pusha\n" \
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" pushl %ds\n" \
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" pushl %es\n" \
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" pushl %fs\n" \
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" pushl %gs\n" \
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" pushl %ss\n" \
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" mov $" __STRINGIFY(GDT_SELECTOR_DATA0) ", %ax\n" \
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" mov %ax, %ds\n" \
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" mov %ax, %es\n" \
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" mov $" __STRINGIFY(GDT_SELECTOR_PROC) ", %ax\n" \
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" mov %ax, %gs\n" \
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" pushl %esp \n" /* set TrapFrame::regs */ \
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" subl $" __STRINGIFY(TRAP_FRAME_SIZE - 4) ", %esp \n" \
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" pushl %esp \n" \
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" cld\n" \
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" call enter_trap_no_irq \n" \
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" call " #title "_handler\n" \
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" jmp common_trap_exit \n"); \
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}
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#elif ARCH(X86_64)
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#define EH_ENTRY(ec, title) \
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extern "C" void title##_asm_entry(); \
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extern "C" void title##_handler(TrapFrame*) __attribute__((used)); \
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asm( \
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".globl " #title "_asm_entry\n" \
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"" #title "_asm_entry: \n" \
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" pushq %r15\n" \
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" pushq %r14\n" \
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" pushq %r13\n" \
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" pushq %r12\n" \
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" pushq %r11\n" \
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" pushq %r10\n" \
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" pushq %r9\n" \
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" pushq %r8\n" \
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" pushq %rax\n" \
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" pushq %rcx\n" \
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" pushq %rdx\n" \
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" pushq %rbx\n" \
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" pushq %rsp\n" \
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" pushq %rbp\n" \
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" pushq %rsi\n" \
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" pushq %rdi\n" \
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" pushq %rsp \n" /* set TrapFrame::regs */ \
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" subq $" __STRINGIFY(TRAP_FRAME_SIZE - 8) ", %rsp \n" \
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" subq $0x8, %rsp\n" /* align stack */ \
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" lea 0x8(%rsp), %rdi \n" \
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" cld\n" \
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" call enter_trap_no_irq \n" \
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" lea 0x8(%rsp), %rdi \n" \
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" call " #title "_handler\n" \
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" addq $0x8, %rsp\n" /* undo alignment */ \
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" jmp common_trap_exit \n");
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#define EH_ENTRY(ec, title) \
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extern "C" void title##_asm_entry(); \
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extern "C" void title##_handler(TrapFrame*) __attribute__((used)); \
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NAKED void title##_asm_entry(){ \
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asm( \
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" pushq %r15\n" \
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" pushq %r14\n" \
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" pushq %r13\n" \
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" pushq %r12\n" \
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" pushq %r11\n" \
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" pushq %r10\n" \
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" pushq %r9\n" \
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" pushq %r8\n" \
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" pushq %rax\n" \
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" pushq %rcx\n" \
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" pushq %rdx\n" \
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" pushq %rbx\n" \
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" pushq %rsp\n" \
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" pushq %rbp\n" \
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" pushq %rsi\n" \
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" pushq %rdi\n" \
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" pushq %rsp \n" /* set TrapFrame::regs */ \
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" subq $" __STRINGIFY(TRAP_FRAME_SIZE - 8) ", %rsp \n" \
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" subq $0x8, %rsp\n" /* align stack */ \
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" lea 0x8(%rsp), %rdi \n" \
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" cld\n" \
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" call enter_trap_no_irq \n" \
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" lea 0x8(%rsp), %rdi \n" \
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" call " #title "_handler\n" \
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" addq $0x8, %rsp\n" /* undo alignment */ \
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" jmp common_trap_exit \n"); \
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}
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#define EH_ENTRY_NO_CODE(ec, title) \
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extern "C" void title##_handler(TrapFrame*) __attribute__((used)); \
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extern "C" void title##_asm_entry(); \
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asm( \
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".globl " #title "_asm_entry\n" \
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"" #title "_asm_entry: \n" \
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" pushq $0x0\n" \
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" pushq %r15\n" \
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" pushq %r14\n" \
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" pushq %r13\n" \
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" pushq %r12\n" \
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" pushq %r11\n" \
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" pushq %r10\n" \
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" pushq %r9\n" \
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" pushq %r8\n" \
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" pushq %rax\n" \
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" pushq %rcx\n" \
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" pushq %rdx\n" \
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" pushq %rbx\n" \
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" pushq %rsp\n" \
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" pushq %rbp\n" \
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" pushq %rsi\n" \
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" pushq %rdi\n" \
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" pushq %rsp \n" /* set TrapFrame::regs */ \
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" subq $" __STRINGIFY(TRAP_FRAME_SIZE - 8) ", %rsp \n" \
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" movq %rsp, %rdi \n" \
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" cld\n" \
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" call enter_trap_no_irq \n" \
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" movq %rsp, %rdi \n" \
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" call " #title "_handler\n" \
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" jmp common_trap_exit \n");
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#define EH_ENTRY_NO_CODE(ec, title) \
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extern "C" void title##_handler(TrapFrame*) __attribute__((used)); \
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extern "C" void title##_asm_entry(); \
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NAKED void title##_asm_entry(){ \
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asm( \
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" pushq $0x0\n" \
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" pushq %r15\n" \
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" pushq %r14\n" \
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" pushq %r13\n" \
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" pushq %r12\n" \
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" pushq %r11\n" \
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" pushq %r10\n" \
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" pushq %r9\n" \
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" pushq %r8\n" \
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" pushq %rax\n" \
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" pushq %rcx\n" \
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" pushq %rdx\n" \
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" pushq %rbx\n" \
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" pushq %rsp\n" \
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" pushq %rbp\n" \
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" pushq %rsi\n" \
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" pushq %rdi\n" \
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" pushq %rsp \n" /* set TrapFrame::regs */ \
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" subq $" __STRINGIFY(TRAP_FRAME_SIZE - 8) ", %rsp \n" \
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" movq %rsp, %rdi \n" \
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" cld\n" \
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" call enter_trap_no_irq \n" \
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" movq %rsp, %rdi \n" \
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" call " #title "_handler\n" \
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" jmp common_trap_exit \n"); \
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}
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#endif
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// clang-format on
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@ -37,10 +37,6 @@ static volatile bool s_smp_enabled;
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static Atomic<ProcessorMessage*> s_message_pool;
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Atomic<u32> Processor::s_idle_cpu_mask { 0 };
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extern "C" void thread_context_first_enter(void);
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extern "C" void exit_kernel_thread(void);
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extern "C" void do_assume_context(Thread* thread, u32 flags);
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// The compiler can't see the calls to these functions inside assembly.
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// Declare them, to avoid dead code warnings.
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extern "C" void context_first_init(Thread* from_thread, Thread* to_thread, TrapFrame* trap) __attribute__((used));
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