0c28130b5c
In include/asm-x86_64/string.h there are such comments: /* Use C out of line version for memcmp */ #define memcmp __builtin_memcmp int memcmp(const void * cs,const void * ct,size_t count); This would mean that if the compiler does not decide to use __builtin_memcmp, it emits a call to memcmp to be satisfied by the C out-of-line version in lib/string.c. What happens is that after preprocessing, in lib/string.i you may find the definition of "__builtin_strcmp". Actually, by accident, in the object you will find the definition of strcmp and such (maybe a trick intended to redirect calls to __builtin_memcmp to the default memcmp when the definition is not expanded); however, this particular case is not a documented feature as far as I can see. Also, the EXPORT_SYMBOL does not work, so it's duplicated in the arch. I simply added some #undef to lib/string.c and removed the (now duplicated) exports in x86-64 and UML/x86_64 subarchs (the second ones are introduced by another patch I just posted for -mm). Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> CC: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
192 lines
4.4 KiB
C
192 lines
4.4 KiB
C
#include <linux/config.h>
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#include <linux/module.h>
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#include <linux/smp.h>
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#include <linux/user.h>
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#include <linux/elfcore.h>
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#include <linux/mca.h>
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#include <linux/sched.h>
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#include <linux/in6.h>
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#include <linux/interrupt.h>
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#include <linux/smp_lock.h>
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#include <linux/pm.h>
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#include <linux/pci.h>
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#include <linux/apm_bios.h>
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#include <linux/kernel.h>
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#include <linux/string.h>
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#include <linux/tty.h>
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#include <linux/highmem.h>
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#include <linux/time.h>
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#include <asm/semaphore.h>
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#include <asm/processor.h>
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#include <asm/i387.h>
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#include <asm/uaccess.h>
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#include <asm/checksum.h>
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#include <asm/io.h>
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#include <asm/delay.h>
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#include <asm/irq.h>
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#include <asm/mmx.h>
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#include <asm/desc.h>
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#include <asm/pgtable.h>
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#include <asm/tlbflush.h>
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#include <asm/nmi.h>
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#include <asm/ist.h>
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#include <asm/kdebug.h>
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extern void dump_thread(struct pt_regs *, struct user *);
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extern spinlock_t rtc_lock;
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/* This is definitely a GPL-only symbol */
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EXPORT_SYMBOL_GPL(cpu_gdt_table);
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#if defined(CONFIG_APM_MODULE)
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extern void machine_real_restart(unsigned char *, int);
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EXPORT_SYMBOL(machine_real_restart);
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extern void default_idle(void);
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EXPORT_SYMBOL(default_idle);
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#endif
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#ifdef CONFIG_SMP
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extern void FASTCALL( __write_lock_failed(rwlock_t *rw));
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extern void FASTCALL( __read_lock_failed(rwlock_t *rw));
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#endif
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#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_HD) || defined(CONFIG_BLK_DEV_IDE_MODULE) || defined(CONFIG_BLK_DEV_HD_MODULE)
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extern struct drive_info_struct drive_info;
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EXPORT_SYMBOL(drive_info);
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#endif
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extern unsigned long cpu_khz;
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extern unsigned long get_cmos_time(void);
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/* platform dependent support */
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EXPORT_SYMBOL(boot_cpu_data);
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#ifdef CONFIG_DISCONTIGMEM
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EXPORT_SYMBOL(node_data);
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EXPORT_SYMBOL(physnode_map);
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#endif
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#ifdef CONFIG_X86_NUMAQ
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EXPORT_SYMBOL(xquad_portio);
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#endif
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EXPORT_SYMBOL(dump_thread);
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EXPORT_SYMBOL(dump_fpu);
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EXPORT_SYMBOL_GPL(kernel_fpu_begin);
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EXPORT_SYMBOL(__ioremap);
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EXPORT_SYMBOL(ioremap_nocache);
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EXPORT_SYMBOL(iounmap);
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EXPORT_SYMBOL(kernel_thread);
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EXPORT_SYMBOL(pm_idle);
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EXPORT_SYMBOL(pm_power_off);
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EXPORT_SYMBOL(get_cmos_time);
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EXPORT_SYMBOL(cpu_khz);
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EXPORT_SYMBOL(apm_info);
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EXPORT_SYMBOL(__down_failed);
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EXPORT_SYMBOL(__down_failed_interruptible);
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EXPORT_SYMBOL(__down_failed_trylock);
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EXPORT_SYMBOL(__up_wakeup);
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/* Networking helper routines. */
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EXPORT_SYMBOL(csum_partial_copy_generic);
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/* Delay loops */
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EXPORT_SYMBOL(__ndelay);
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EXPORT_SYMBOL(__udelay);
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EXPORT_SYMBOL(__delay);
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EXPORT_SYMBOL(__const_udelay);
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EXPORT_SYMBOL(__get_user_1);
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EXPORT_SYMBOL(__get_user_2);
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EXPORT_SYMBOL(__get_user_4);
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EXPORT_SYMBOL(__put_user_1);
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EXPORT_SYMBOL(__put_user_2);
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EXPORT_SYMBOL(__put_user_4);
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EXPORT_SYMBOL(__put_user_8);
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EXPORT_SYMBOL(strpbrk);
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EXPORT_SYMBOL(strstr);
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EXPORT_SYMBOL(strncpy_from_user);
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EXPORT_SYMBOL(__strncpy_from_user);
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EXPORT_SYMBOL(clear_user);
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EXPORT_SYMBOL(__clear_user);
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EXPORT_SYMBOL(__copy_from_user_ll);
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EXPORT_SYMBOL(__copy_to_user_ll);
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EXPORT_SYMBOL(strnlen_user);
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EXPORT_SYMBOL(dma_alloc_coherent);
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EXPORT_SYMBOL(dma_free_coherent);
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#ifdef CONFIG_PCI
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EXPORT_SYMBOL(pci_mem_start);
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#endif
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#ifdef CONFIG_PCI_BIOS
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EXPORT_SYMBOL(pcibios_set_irq_routing);
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EXPORT_SYMBOL(pcibios_get_irq_routing_table);
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#endif
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#ifdef CONFIG_X86_USE_3DNOW
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EXPORT_SYMBOL(_mmx_memcpy);
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EXPORT_SYMBOL(mmx_clear_page);
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EXPORT_SYMBOL(mmx_copy_page);
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#endif
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#ifdef CONFIG_X86_HT
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EXPORT_SYMBOL(smp_num_siblings);
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EXPORT_SYMBOL(cpu_sibling_map);
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#endif
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#ifdef CONFIG_SMP
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EXPORT_SYMBOL(cpu_data);
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EXPORT_SYMBOL(cpu_online_map);
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EXPORT_SYMBOL(cpu_callout_map);
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EXPORT_SYMBOL(__write_lock_failed);
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EXPORT_SYMBOL(__read_lock_failed);
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/* Global SMP stuff */
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EXPORT_SYMBOL(smp_call_function);
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/* TLB flushing */
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EXPORT_SYMBOL(flush_tlb_page);
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#endif
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#ifdef CONFIG_X86_IO_APIC
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EXPORT_SYMBOL(IO_APIC_get_PCI_irq_vector);
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#endif
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#ifdef CONFIG_MCA
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EXPORT_SYMBOL(machine_id);
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#endif
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#ifdef CONFIG_VT
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EXPORT_SYMBOL(screen_info);
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#endif
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EXPORT_SYMBOL(get_wchan);
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EXPORT_SYMBOL(rtc_lock);
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EXPORT_SYMBOL_GPL(set_nmi_callback);
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EXPORT_SYMBOL_GPL(unset_nmi_callback);
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EXPORT_SYMBOL(register_die_notifier);
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#ifdef CONFIG_HAVE_DEC_LOCK
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EXPORT_SYMBOL(_atomic_dec_and_lock);
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#endif
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EXPORT_SYMBOL(__PAGE_KERNEL);
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#ifdef CONFIG_HIGHMEM
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EXPORT_SYMBOL(kmap);
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EXPORT_SYMBOL(kunmap);
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EXPORT_SYMBOL(kmap_atomic);
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EXPORT_SYMBOL(kunmap_atomic);
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EXPORT_SYMBOL(kmap_atomic_to_page);
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#endif
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#if defined(CONFIG_X86_SPEEDSTEP_SMI) || defined(CONFIG_X86_SPEEDSTEP_SMI_MODULE)
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EXPORT_SYMBOL(ist_info);
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#endif
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EXPORT_SYMBOL(csum_partial);
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