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https://github.com/RGBCube/serenity
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Kernel: Don't build with -mregparm=3
It was really confusing to have different calling conventions in kernel and userspace. Also this has prevented us from linking with libgcc.
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commit
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6 changed files with 54 additions and 52 deletions
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@ -1,7 +1,7 @@
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#include "APIC.h"
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#include "Assertions.h"
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#include "IRQHandler.h"
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#include "PIC.h"
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#include "APIC.h"
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#include "Process.h"
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#include "Scheduler.h"
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#include <AK/Types.h>
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@ -62,35 +62,36 @@ asm(
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" add $0x4, %esp\n"
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" iret\n");
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#define EH_ENTRY(ec) \
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#define EH_ENTRY(ec) \
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extern "C" void exception_##ec##_handler(RegisterDump&); \
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extern "C" void exception_##ec##_entry(); \
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asm( \
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".globl exception_" #ec "_entry\n" \
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"exception_" #ec "_entry: \n" \
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" pusha\n" \
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" pushw %ds\n" \
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" pushw %es\n" \
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" pushw %fs\n" \
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" pushw %gs\n" \
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" pushw %ss\n" \
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" pushw %ss\n" \
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" pushw %ss\n" \
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" pushw %ss\n" \
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" pushw %ss\n" \
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" popw %ds\n" \
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" popw %es\n" \
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" popw %fs\n" \
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" popw %gs\n" \
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" mov %esp, %eax\n" \
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" call exception_" #ec "_handler\n" \
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" popw %gs\n" \
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" popw %gs\n" \
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" popw %fs\n" \
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" popw %es\n" \
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" popw %ds\n" \
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" popa\n" \
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" add $0x4, %esp\n" \
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extern "C" void exception_##ec##_entry(); \
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asm( \
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".globl exception_" #ec "_entry\n" \
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"exception_" #ec "_entry: \n" \
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" pusha\n" \
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" pushw %ds\n" \
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" pushw %es\n" \
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" pushw %fs\n" \
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" pushw %gs\n" \
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" pushw %ss\n" \
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" pushw %ss\n" \
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" pushw %ss\n" \
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" pushw %ss\n" \
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" pushw %ss\n" \
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" popw %ds\n" \
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" popw %es\n" \
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" popw %fs\n" \
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" popw %gs\n" \
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" pushl %esp\n" \
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" call exception_" #ec "_handler\n" \
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" add $4, %esp\n" \
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" popw %gs\n" \
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" popw %gs\n" \
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" popw %fs\n" \
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" popw %es\n" \
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" popw %ds\n" \
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" popa\n" \
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" add $0x4, %esp\n" \
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" iret\n");
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#define EH_ENTRY_NO_CODE(ec) \
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@ -114,8 +115,9 @@ asm(
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" popw %es\n" \
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" popw %fs\n" \
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" popw %gs\n" \
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" mov %esp, %eax\n" \
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" pushl %esp\n" \
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" call exception_" #ec "_handler\n" \
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" add $4, %esp\n" \
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" popw %gs\n" \
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" popw %gs\n" \
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" popw %fs\n" \
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@ -265,10 +267,10 @@ void exception_14_handler(RegisterDump& regs)
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auto response = MM.handle_page_fault(PageFault(regs.exception_code, VirtualAddress(fault_address)));
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if (response == PageFaultResponse::ShouldCrash) {
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if(current->has_signal_handler(SIGSEGV)){
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current->send_urgent_signal_to_self(SIGSEGV);
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return;
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}
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if (current->has_signal_handler(SIGSEGV)) {
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current->send_urgent_signal_to_self(SIGSEGV);
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return;
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}
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kprintf("\033[31;1m%s(%u:%u) Unrecoverable page fault, %s address %p\033[0m\n",
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current->process().name().characters(),
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@ -301,7 +303,7 @@ void exception_14_handler(RegisterDump& regs)
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static void _exception##i() \
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{ \
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kprintf(msg "\n"); \
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u32 cr0, cr2, cr3, cr4; \
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u32 cr0, cr2, cr3, cr4; \
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asm("movl %%cr0, %%eax" \
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: "=a"(cr0)); \
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asm("movl %%cr2, %%eax" \
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