forked from Minki/linux
861667dc82
The relocation code was essentially taken from the 2.4 modutils which perform relocation in userspace. In 2.6 relocation of multiple modules may be performed in parallel by the in-kernel loader so the global variable mips_hi16_list won't fly anymore. Fix race by moving it into mod_arch_specific. [ralf@linux-mips.org: folded in Tony's followup fix. Thanks Tony!] Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Tony Wu <tung7970@gmail.com> Cc: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/4189/
151 lines
4.2 KiB
C
151 lines
4.2 KiB
C
#ifndef _ASM_MODULE_H
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#define _ASM_MODULE_H
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#include <linux/list.h>
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#include <linux/elf.h>
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#include <asm/uaccess.h>
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struct mod_arch_specific {
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/* Data Bus Error exception tables */
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struct list_head dbe_list;
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const struct exception_table_entry *dbe_start;
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const struct exception_table_entry *dbe_end;
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struct mips_hi16 *r_mips_hi16_list;
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};
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typedef uint8_t Elf64_Byte; /* Type for a 8-bit quantity. */
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typedef struct {
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Elf64_Addr r_offset; /* Address of relocation. */
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Elf64_Word r_sym; /* Symbol index. */
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Elf64_Byte r_ssym; /* Special symbol. */
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Elf64_Byte r_type3; /* Third relocation. */
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Elf64_Byte r_type2; /* Second relocation. */
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Elf64_Byte r_type; /* First relocation. */
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} Elf64_Mips_Rel;
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typedef struct {
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Elf64_Addr r_offset; /* Address of relocation. */
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Elf64_Word r_sym; /* Symbol index. */
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Elf64_Byte r_ssym; /* Special symbol. */
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Elf64_Byte r_type3; /* Third relocation. */
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Elf64_Byte r_type2; /* Second relocation. */
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Elf64_Byte r_type; /* First relocation. */
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Elf64_Sxword r_addend; /* Addend. */
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} Elf64_Mips_Rela;
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#ifdef CONFIG_32BIT
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#define Elf_Shdr Elf32_Shdr
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#define Elf_Sym Elf32_Sym
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#define Elf_Ehdr Elf32_Ehdr
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#define Elf_Addr Elf32_Addr
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#define Elf_Mips_Rel Elf32_Rel
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#define Elf_Mips_Rela Elf32_Rela
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#define ELF_MIPS_R_SYM(rel) ELF32_R_SYM(rel.r_info)
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#define ELF_MIPS_R_TYPE(rel) ELF32_R_TYPE(rel.r_info)
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#endif
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#ifdef CONFIG_64BIT
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#define Elf_Shdr Elf64_Shdr
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#define Elf_Sym Elf64_Sym
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#define Elf_Ehdr Elf64_Ehdr
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#define Elf_Addr Elf64_Addr
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#define Elf_Mips_Rel Elf64_Mips_Rel
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#define Elf_Mips_Rela Elf64_Mips_Rela
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#define ELF_MIPS_R_SYM(rel) (rel.r_sym)
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#define ELF_MIPS_R_TYPE(rel) (rel.r_type)
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#endif
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#ifdef CONFIG_MODULES
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/* Given an address, look for it in the exception tables. */
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const struct exception_table_entry*search_module_dbetables(unsigned long addr);
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#else
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/* Given an address, look for it in the exception tables. */
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static inline const struct exception_table_entry *
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search_module_dbetables(unsigned long addr)
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{
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return NULL;
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}
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#endif
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#ifdef CONFIG_CPU_BMIPS
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#define MODULE_PROC_FAMILY "BMIPS "
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#elif defined CONFIG_CPU_MIPS32_R1
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#define MODULE_PROC_FAMILY "MIPS32_R1 "
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#elif defined CONFIG_CPU_MIPS32_R2
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#define MODULE_PROC_FAMILY "MIPS32_R2 "
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#elif defined CONFIG_CPU_MIPS64_R1
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#define MODULE_PROC_FAMILY "MIPS64_R1 "
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#elif defined CONFIG_CPU_MIPS64_R2
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#define MODULE_PROC_FAMILY "MIPS64_R2 "
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#elif defined CONFIG_CPU_R3000
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#define MODULE_PROC_FAMILY "R3000 "
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#elif defined CONFIG_CPU_TX39XX
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#define MODULE_PROC_FAMILY "TX39XX "
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#elif defined CONFIG_CPU_VR41XX
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#define MODULE_PROC_FAMILY "VR41XX "
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#elif defined CONFIG_CPU_R4300
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#define MODULE_PROC_FAMILY "R4300 "
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#elif defined CONFIG_CPU_R4X00
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#define MODULE_PROC_FAMILY "R4X00 "
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#elif defined CONFIG_CPU_TX49XX
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#define MODULE_PROC_FAMILY "TX49XX "
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#elif defined CONFIG_CPU_R5000
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#define MODULE_PROC_FAMILY "R5000 "
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#elif defined CONFIG_CPU_R5432
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#define MODULE_PROC_FAMILY "R5432 "
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#elif defined CONFIG_CPU_R5500
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#define MODULE_PROC_FAMILY "R5500 "
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#elif defined CONFIG_CPU_R6000
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#define MODULE_PROC_FAMILY "R6000 "
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#elif defined CONFIG_CPU_NEVADA
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#define MODULE_PROC_FAMILY "NEVADA "
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#elif defined CONFIG_CPU_R8000
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#define MODULE_PROC_FAMILY "R8000 "
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#elif defined CONFIG_CPU_R10000
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#define MODULE_PROC_FAMILY "R10000 "
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#elif defined CONFIG_CPU_RM7000
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#define MODULE_PROC_FAMILY "RM7000 "
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#elif defined CONFIG_CPU_RM9000
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#define MODULE_PROC_FAMILY "RM9000 "
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#elif defined CONFIG_CPU_SB1
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#define MODULE_PROC_FAMILY "SB1 "
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#elif defined CONFIG_CPU_LOONGSON1
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#define MODULE_PROC_FAMILY "LOONGSON1 "
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#elif defined CONFIG_CPU_LOONGSON2
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#define MODULE_PROC_FAMILY "LOONGSON2 "
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#elif defined CONFIG_CPU_CAVIUM_OCTEON
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#define MODULE_PROC_FAMILY "OCTEON "
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#elif defined CONFIG_CPU_XLR
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#define MODULE_PROC_FAMILY "XLR "
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#elif defined CONFIG_CPU_XLP
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#define MODULE_PROC_FAMILY "XLP "
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#else
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#error MODULE_PROC_FAMILY undefined for your processor configuration
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#endif
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#ifdef CONFIG_32BIT
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#define MODULE_KERNEL_TYPE "32BIT "
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#elif defined CONFIG_64BIT
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#define MODULE_KERNEL_TYPE "64BIT "
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#endif
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#ifdef CONFIG_MIPS_MT_SMTC
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#define MODULE_KERNEL_SMTC "MT_SMTC "
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#else
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#define MODULE_KERNEL_SMTC ""
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#endif
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#define MODULE_ARCH_VERMAGIC \
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MODULE_PROC_FAMILY MODULE_KERNEL_TYPE MODULE_KERNEL_SMTC
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#endif /* _ASM_MODULE_H */
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