text: /* SPDX-License-Identifier: GPL-2.0-or-later */
  #ifndef _ASM_POWERPC_MODULE_H
  #define _ASM_POWERPC_MODULE_H
  #ifdef __KERNEL__
  
  /*
   */
  
  #include <linux/list.h>
  #include <asm/bug.h>
  #include <asm-generic/module.h>
  
  
  #ifdef CONFIG_MPROFILE_KERNEL
  #define MODULE_ARCH_VERMAGIC_FTRACE	"mprofile-kernel "
  #else
  #define MODULE_ARCH_VERMAGIC_FTRACE	""
  #endif
  
  #ifdef CONFIG_RELOCATABLE
  #define MODULE_ARCH_VERMAGIC_RELOCATABLE	"relocatable "
  #else
  #define MODULE_ARCH_VERMAGIC_RELOCATABLE	""
  #endif
  
  #define MODULE_ARCH_VERMAGIC MODULE_ARCH_VERMAGIC_FTRACE MODULE_ARCH_VERMAGIC_RELOCATABLE
  
  #ifndef __powerpc64__
  /*
   * Thanks to Paul M for explaining this.
   *
   * PPC can only do rel jumps += 32MB, and often the kernel and other
   * modules are further away than this.  So, we jump to a table of
   * trampolines attached to the module (the Procedure Linkage Table)
   * whenever that happens.
   */
  
  struct ppc_plt_entry {
  	/* 16 byte jump instruction sequence (4 instructions) */
  	unsigned int jump[4];
  };
  #endif	/* __powerpc64__ */
  
  
  struct mod_arch_specific {
  #ifdef __powerpc64__
  	unsigned int stubs_section;	/* Index of stubs section in module */
  	unsigned int toc_section;	/* What section is the TOC? */
  	bool toc_fixed;			/* Have we fixed up .TOC.? */
  
  	/* For module function descriptor dereference */
  	unsigned long start_opd;
  	unsigned long end_opd;
  #else /* powerpc64 */
  	/* Indices of PLT sections within module. */
  	unsigned int core_plt_section;
  	unsigned int init_plt_section;
  #endif /* powerpc64 */
  
  #ifdef CONFIG_DYNAMIC_FTRACE
  	unsigned long tramp;
  #ifdef CONFIG_DYNAMIC_FTRACE_WITH_REGS
  	unsigned long tramp_regs;
  #endif
  #endif
  
  	/* List of BUG addresses, source line numbers and filenames */
  	struct list_head bug_list;
  	struct bug_entry *bug_table;
  	unsigned int num_bugs;
  };
  
  /*
   * Select ELF headers.
   * Make empty section for module_frob_arch_sections to expand.
   */
  
  #ifdef __powerpc64__
  #    ifdef MODULE
  	asm(".section .stubs,\"ax\",@nobits; .align 3; .previous");
  #    endif
  #else
  #    ifdef MODULE
  	asm(".section .plt,\"ax\",@nobits; .align 3; .previous");
  	asm(".section .init.plt,\"ax\",@nobits; .align 3; .previous");
  #    endif	/* MODULE */
  #endif
  
  #ifdef CONFIG_DYNAMIC_FTRACE
  #    ifdef MODULE
  	asm(".section .ftrace.tramp,\"ax\",@nobits; .align 3; .previous");
  #    endif	/* MODULE */
  #endif
  
  int module_trampoline_target(struct module *mod, unsigned long trampoline,
  			     unsigned long *target);
  
  #ifdef CONFIG_DYNAMIC_FTRACE
  int module_finalize_ftrace(struct module *mod, const Elf_Shdr *sechdrs);
  #else
  static inline int module_finalize_ftrace(struct module *mod, const Elf_Shdr *sechdrs)
  {
  	return 0;
  }
  #endif
  
  #endif /* __KERNEL__ */
  #endif	/* _ASM_POWERPC_MODULE_H */
  