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CPU: Handle Debug exception

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We currently only care about debug exceptions that are triggered
by the single-step execution mode.

The debug exception is translated to a SIGTRAP, which can be caught
and handled by the tracing thread.
This commit is contained in:
Itamar 2020-04-13 16:37:47 +03:00 • committed by Andreas Kling
parent 1191ab9500
commit d04409b444
2 changed files with 32 additions and 3 deletions
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2
Kernel/Arch/i386/CPU.h
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@ -480,6 +480,8 @@ inline FlatPtr offset_in_page(const void* address)
u32 read_cr3();
void write_cr3(u32);
u32 read_dr6();
class CPUID {
public:
CPUID(u32 function) { asm volatile("cpuid"