From ae9c1d1b16061242068353ff9064c8c9ef63b577 Mon Sep 17 00:00:00 2001 From: dzwdz Date: Sat, 24 Jul 2021 18:53:34 +0200 Subject: sysexit() now overrides all registers when doing anything more complex than starting a new program, you pretty much need to pass a full register dump. otherwise stuff will break --- src/kernel/arch/i386/registers.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'src/kernel/arch/i386/registers.h') diff --git a/src/kernel/arch/i386/registers.h b/src/kernel/arch/i386/registers.h index feba157..1264139 100644 --- a/src/kernel/arch/i386/registers.h +++ b/src/kernel/arch/i386/registers.h @@ -1,11 +1,17 @@ #pragma once #include +// TODO merge registers and registers_pushad + struct registers { uint32_t eax, ebx, ecx, edx, esi, edi; void *ebp, *esp, *eip; }; +struct registers_pushad { + uint32_t edi, esi, ebp, esp, ebx, edx, ecx, eax; +} __attribute__((__packed__)); + // saves a return value according to the SysV ABI inline void regs_savereturn(struct registers *regs, uint64_t value) { regs->eax = value; -- cgit v1.2.3