linux/arch/sh/kernel/sh_ksyms_32.c

134 lines
3.4 KiB
C
Raw Normal View History

#include <linux/module.h>
#include <linux/smp.h>
#include <linux/user.h>
#include <linux/elfcore.h>
#include <linux/sched.h>
#include <linux/in6.h>
#include <linux/interrupt.h>
#include <linux/vmalloc.h>
#include <linux/pci.h>
#include <linux/irq.h>
#include <asm/sections.h>
#include <asm/processor.h>
#include <asm/uaccess.h>
#include <asm/checksum.h>
#include <asm/io.h>
#include <asm/delay.h>
#include <asm/tlbflush.h>
#include <asm/cacheflush.h>
#include <asm/ftrace.h>
extern int dump_fpu(struct pt_regs *, elf_fpregset_t *);
extern struct hw_interrupt_type no_irq_type;
/* platform dependent support */
EXPORT_SYMBOL(dump_fpu);
EXPORT_SYMBOL(kernel_thread);
EXPORT_SYMBOL(irq_desc);
EXPORT_SYMBOL(no_irq_type);
EXPORT_SYMBOL(strlen);
/* PCI exports */
#ifdef CONFIG_PCI
EXPORT_SYMBOL(pci_alloc_consistent);
EXPORT_SYMBOL(pci_free_consistent);
#endif
/* mem exports */
EXPORT_SYMBOL(memchr);
EXPORT_SYMBOL(memcpy);
EXPORT_SYMBOL(memset);
EXPORT_SYMBOL(memmove);
EXPORT_SYMBOL(__copy_user);
#ifdef CONFIG_MMU
EXPORT_SYMBOL(get_vm_area);
#endif
EXPORT_SYMBOL(__udelay);
EXPORT_SYMBOL(__ndelay);
EXPORT_SYMBOL(__const_udelay);
sh: Fix FPU tuning on toolchains with mismatched multilib targets. Presently there is very little standing in the way of using an SH-4 toolchain for building an SH-2 kernel, and vice versa. Binutils itself has no limitations whatsoever and supports explicit ISA hinting, which we already use with varying degrees of success today. This leaves GCC as the odd one out, due to a rather dubious policy decision by the GCC folks to not include all of the CPU family variants in the default list of multilib targets in GCC4. Despite best efforts to the contrary, libgcc itself already contains awareness of the various CPU types and remains generally usable, allowing it to safely be referenced even on a mismatched target (and indeed, explicit ISA tuning by binutils keeps us honest in terms of ensuring that we do not link incompatible objects in). In order to support this, a couple of changes had to be made. Firstly, the introduction of MAYBE_DECLARE_EXPORT(), which provides a __weak extern reference for libgcc resident routines when finer-grained -m<cpu-family> based tuning is not supported by the toolchain. This fixes up the __sdivsi3_i4i and __udivsi3_i4i references when dealing with SH-2 kernels linked with an SH-4 libgcc. Secondly, in case where we are unable to find a suitable match for CPU family tuning but still have a toolchain that defaults to FP instruction generation, a suitable nofpu target must be selected. This is accomplished by selecting the first nofpu multilib target supported by the toolchain, which is also necessary for selecting the proper libgcc to link against. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-28 08:19:35 +00:00
#define DECLARE_EXPORT(name) \
extern void name(void);EXPORT_SYMBOL(name)
DECLARE_EXPORT(__udivsi3);
DECLARE_EXPORT(__sdivsi3);
DECLARE_EXPORT(__lshrsi3);
DECLARE_EXPORT(__ashrsi3);
DECLARE_EXPORT(__ashlsi3);
DECLARE_EXPORT(__ashiftrt_r4_6);
DECLARE_EXPORT(__ashiftrt_r4_7);
DECLARE_EXPORT(__ashiftrt_r4_8);
DECLARE_EXPORT(__ashiftrt_r4_9);
DECLARE_EXPORT(__ashiftrt_r4_10);
DECLARE_EXPORT(__ashiftrt_r4_11);
DECLARE_EXPORT(__ashiftrt_r4_12);
DECLARE_EXPORT(__ashiftrt_r4_13);
DECLARE_EXPORT(__ashiftrt_r4_14);
DECLARE_EXPORT(__ashiftrt_r4_15);
DECLARE_EXPORT(__ashiftrt_r4_20);
DECLARE_EXPORT(__ashiftrt_r4_21);
DECLARE_EXPORT(__ashiftrt_r4_22);
DECLARE_EXPORT(__ashiftrt_r4_23);
DECLARE_EXPORT(__ashiftrt_r4_24);
DECLARE_EXPORT(__ashiftrt_r4_27);
DECLARE_EXPORT(__ashiftrt_r4_30);
DECLARE_EXPORT(__movstr);
DECLARE_EXPORT(__movstrSI8);
DECLARE_EXPORT(__movstrSI12);
DECLARE_EXPORT(__movstrSI16);
DECLARE_EXPORT(__movstrSI20);
DECLARE_EXPORT(__movstrSI24);
DECLARE_EXPORT(__movstrSI28);
DECLARE_EXPORT(__movstrSI32);
DECLARE_EXPORT(__movstrSI36);
DECLARE_EXPORT(__movstrSI40);
DECLARE_EXPORT(__movstrSI44);
DECLARE_EXPORT(__movstrSI48);
DECLARE_EXPORT(__movstrSI52);
DECLARE_EXPORT(__movstrSI56);
DECLARE_EXPORT(__movstrSI60);
DECLARE_EXPORT(__movstr_i4_even);
DECLARE_EXPORT(__movstr_i4_odd);
DECLARE_EXPORT(__movstrSI12_i4);
DECLARE_EXPORT(__udiv_qrnnd_16);
DECLARE_EXPORT(__sdivsi3_i4);
DECLARE_EXPORT(__udivsi3_i4);
DECLARE_EXPORT(__sdivsi3_i4i);
DECLARE_EXPORT(__udivsi3_i4i);
#if !defined(CONFIG_CACHE_OFF) && (defined(CONFIG_CPU_SH4) || \
defined(CONFIG_SH7705_CACHE_32KB))
/* needed by some modules */
EXPORT_SYMBOL(flush_cache_all);
EXPORT_SYMBOL(flush_cache_range);
EXPORT_SYMBOL(flush_dcache_page);
#endif
#if !defined(CONFIG_CACHE_OFF) && defined(CONFIG_MMU) && \
(defined(CONFIG_CPU_SH4) || defined(CONFIG_SH7705_CACHE_32KB))
EXPORT_SYMBOL(clear_user_page);
#endif
#ifdef CONFIG_FUNCTION_TRACER
EXPORT_SYMBOL(mcount);
#endif
EXPORT_SYMBOL(csum_partial);
EXPORT_SYMBOL(csum_partial_copy_generic);
#ifdef CONFIG_IPV6
EXPORT_SYMBOL(csum_ipv6_magic);
#endif
EXPORT_SYMBOL(clear_page);
EXPORT_SYMBOL(copy_page);
EXPORT_SYMBOL(__clear_user);
EXPORT_SYMBOL(_ebss);
EXPORT_SYMBOL(empty_zero_page);
#ifndef CONFIG_CACHE_OFF
EXPORT_SYMBOL(__flush_purge_region);
EXPORT_SYMBOL(__flush_wback_region);
EXPORT_SYMBOL(__flush_invalidate_region);
#endif