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53 lines
1.3 KiB
53 lines
1.3 KiB
/* |
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* Copyright (C) 2002 Jeff Dike ([email protected]) |
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* Licensed under the GPL |
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*/ |
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#ifndef __UM_PROCESSOR_I386_H |
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#define __UM_PROCESSOR_I386_H |
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#include <linux/string.h> |
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#include <asm/segment.h> |
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#include <asm/ldt.h> |
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extern int host_has_cmov; |
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struct uml_tls_struct { |
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struct user_desc tls; |
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unsigned flushed:1; |
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unsigned present:1; |
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}; |
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struct arch_thread { |
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struct uml_tls_struct tls_array[GDT_ENTRY_TLS_ENTRIES]; |
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unsigned long debugregs[8]; |
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int debugregs_seq; |
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struct faultinfo faultinfo; |
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}; |
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#define INIT_ARCH_THREAD { \ |
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.tls_array = { [ 0 ... GDT_ENTRY_TLS_ENTRIES - 1 ] = \ |
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{ .present = 0, .flushed = 0 } }, \ |
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.debugregs = { [ 0 ... 7 ] = 0 }, \ |
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.debugregs_seq = 0, \ |
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.faultinfo = { 0, 0, 0 } \ |
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} |
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#define STACKSLOTS_PER_LINE 8 |
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static inline void arch_flush_thread(struct arch_thread *thread) |
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{ |
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/* Clear any TLS still hanging */ |
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memset(&thread->tls_array, 0, sizeof(thread->tls_array)); |
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} |
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static inline void arch_copy_thread(struct arch_thread *from, |
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struct arch_thread *to) |
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{ |
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memcpy(&to->tls_array, &from->tls_array, sizeof(from->tls_array)); |
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} |
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#define current_sp() ({ void *sp; __asm__("movl %%esp, %0" : "=r" (sp) : ); sp; }) |
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#define current_bp() ({ unsigned long bp; __asm__("movl %%ebp, %0" : "=r" (bp) : ); bp; }) |
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#endif
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