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Kernel: Don't build with -mregparm=3

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It was really confusing to have different calling conventions in kernel
and userspace. Also this has prevented us from linking with libgcc.
This commit is contained in:
Andreas Kling 2019-11-06 13:03:45 +01:00
parent 01b21e5e05
commit 1c6f8d3cbd
6 changed files with 54 additions and 52 deletions
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72
Kernel/Arch/i386/CPU.cpp
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@ -1,7 +1,7 @@
#include "APIC.h"
#include "Assertions.h"
#include "IRQHandler.h"
#include "PIC.h"
#include "APIC.h"
#include "Process.h"
#include "Scheduler.h"
#include <AK/Types.h>
@ -62,35 +62,36 @@ asm(
" add $0x4, %esp\n"
" iret\n");
#define EH_ENTRY(ec) \
#define EH_ENTRY(ec) \
extern "C" void exception_##ec##_handler(RegisterDump&); \
extern "C" void exception_##ec##_entry(); \
asm( \
".globl exception_" #ec "_entry\n" \
"exception_" #ec "_entry: \n" \
" pusha\n" \
" pushw %ds\n" \
" pushw %es\n" \
" pushw %fs\n" \
" pushw %gs\n" \
" pushw %ss\n" \
" pushw %ss\n" \
" pushw %ss\n" \
" pushw %ss\n" \
" pushw %ss\n" \
" popw %ds\n" \
" popw %es\n" \
" popw %fs\n" \
" popw %gs\n" \
" mov %esp, %eax\n" \
" call exception_" #ec "_handler\n" \
" popw %gs\n" \
" popw %gs\n" \
" popw %fs\n" \
" popw %es\n" \
" popw %ds\n" \
" popa\n" \
" add $0x4, %esp\n" \
extern "C" void exception_##ec##_entry(); \
asm( \
".globl exception_" #ec "_entry\n" \
"exception_" #ec "_entry: \n" \
" pusha\n" \
" pushw %ds\n" \
" pushw %es\n" \
" pushw %fs\n" \
" pushw %gs\n" \
" pushw %ss\n" \
" pushw %ss\n" \
" pushw %ss\n" \
" pushw %ss\n" \
" pushw %ss\n" \
" popw %ds\n" \
" popw %es\n" \
" popw %fs\n" \
" popw %gs\n" \
" pushl %esp\n" \
" call exception_" #ec "_handler\n" \
" add $4, %esp\n" \
" popw %gs\n" \
" popw %gs\n" \
" popw %fs\n" \
" popw %es\n" \
" popw %ds\n" \
" popa\n" \
" add $0x4, %esp\n" \
" iret\n");
#define EH_ENTRY_NO_CODE(ec) \
@ -114,8 +115,9 @@ asm(
" popw %es\n" \
" popw %fs\n" \
" popw %gs\n" \
" mov %esp, %eax\n" \
" pushl %esp\n" \
" call exception_" #ec "_handler\n" \
" add $4, %esp\n" \
" popw %gs\n" \
" popw %gs\n" \
" popw %fs\n" \
@ -265,10 +267,10 @@ void exception_14_handler(RegisterDump& regs)
auto response = MM.handle_page_fault(PageFault(regs.exception_code, VirtualAddress(fault_address)));
if (response == PageFaultResponse::ShouldCrash) {
if(current->has_signal_handler(SIGSEGV)){
current->send_urgent_signal_to_self(SIGSEGV);
return;
}
if (current->has_signal_handler(SIGSEGV)) {
current->send_urgent_signal_to_self(SIGSEGV);
return;
}
kprintf("\033[31;1m%s(%u:%u) Unrecoverable page fault, %s address %p\033[0m\n",
current->process().name().characters(),
@ -301,7 +303,7 @@ void exception_14_handler(RegisterDump& regs)
static void _exception##i() \
{ \
kprintf(msg "\n"); \
u32 cr0, cr2, cr3, cr4; \
u32 cr0, cr2, cr3, cr4; \
asm("movl %%cr0, %%eax" \
: "=a"(cr0)); \
asm("movl %%cr2, %%eax" \