0b11ecb18c
there are prefixed with the respective architecture name. Useful for remote debugging a different architecture. * <x86/arch_debugger.h>: Introduced a structure for the FPU state, so that it isn't left to the debugger. * Removed the _kern_get_thread_cpu_state() syscall. Was originally intended for bdb compatiblity, but isn't really needed. * Kernel x86 arch_get_debug_cpu_state(): The use of fnsave was broken, since it reinits the FPU after saving the state. This resulted in weird results when debugging functions using the FPU. We now use fxsave, if available. Otherwise fnsave + frstor should be used -- not fully implemented yet. Same for arch_set_debug_cpu_state(). git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@31682 a95241bf-73f2-0310-859d-f6bbb57e9c96
69 lines
1.2 KiB
C
69 lines
1.2 KiB
C
/*
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* Copyright 2005-2009, Haiku Inc.
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* Distributed under the terms of the MIT License.
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*/
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#ifndef _ARCH_X86_DEBUGGER_H
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#define _ARCH_X86_DEBUGGER_H
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typedef struct x86_fp_register {
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uint8 value[10];
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uint8 reserved[6];
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} x86_fp_register;
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typedef struct x86_xmm_register {
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uint8 value[16];
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} x86_xmm_register;
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typedef struct x86_extended_registers {
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uint16 control;
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uint16 status;
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uint8 tag;
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uint8 reserved1;
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uint16 opcode;
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uint32 instruction_pointer;
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uint16 cs;
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uint16 reserved2;
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uint32 data_pointer;
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uint16 ds;
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uint16 reserved3;
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uint32 mxcsr;
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uint32 mxcsr_mask;
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union {
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x86_fp_register fp_registers[8]; // st0-st7
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x86_fp_register mmx_registers[8]; // mm0-mm7
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};
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x86_xmm_register xmm_registers[8]; // xmm0-xmm7
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uint8 reserved4[224]; // 288 - 512
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} x86_extended_registers;
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struct x86_debug_cpu_state {
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x86_extended_registers extended_registers;
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uint32 gs;
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uint32 fs;
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uint32 es;
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uint32 ds;
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uint32 edi;
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uint32 esi;
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uint32 ebp;
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uint32 esp;
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uint32 ebx;
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uint32 edx;
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uint32 ecx;
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uint32 eax;
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uint32 vector;
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uint32 error_code;
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uint32 eip;
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uint32 cs;
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uint32 eflags;
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uint32 user_esp;
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uint32 user_ss;
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} __attribute__((aligned(16)));
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#endif // _ARCH_X86_DEBUGGER_H
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