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Kernel: Add exception_code to RegisterDump.

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Added the exception_code field to RegisterDump, removing the need
for RegisterDumpWithExceptionCode. To accomplish this, I had to
push a dummy exception code during some interrupt entries to properly
pad out the RegisterDump. Note that we also needed to change some code
in sys$sigreturn to deal with the new RegisterDump layout.
This commit is contained in:
Drew Stratford 2019-10-05 03:31:34 +13:00 • committed by Andreas Kling
parent 334e039294
commit 7fc903b97a
6 changed files with 23 additions and 38 deletions
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24
Kernel/Arch/i386/CPU.h
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@ -333,29 +333,6 @@ private:
};
struct [[gnu::packed]] RegisterDump
{
u16 ss;
u16 gs;
u16 fs;
u16 es;
u16 ds;
u32 edi;
u32 esi;
u32 ebp;
u32 esp;
u32 ebx;
u32 edx;
u32 ecx;
u32 eax;
u32 eip;
u16 cs;
u16 __csPadding;
u32 eflags;
u32 esp_if_crossRing;
u16 ss_if_crossRing;
};
struct [[gnu::packed]] RegisterDumpWithExceptionCode
{
u16 ss;
u16 gs;
@ -380,6 +357,7 @@ struct [[gnu::packed]] RegisterDumpWithExceptionCode
u16 ss_if_crossRing;
};
struct [[gnu::aligned(16)]] FPUState
{
u8 buffer[512];