From 6b9269abd64c54f11dc4aaf162d2915fccae6c77 Mon Sep 17 00:00:00 2001 From: Jon Loeliger Date: Thu, 1 Sep 2005 15:51:52 -0500 Subject: [PATCH] ppc/ppc64: Merge more include files This patch merges several include files from asm-ppc and asm-ppc64 into the new asm-powerpc. Signed-off-by: Jon Loeliger Signed-off-by: Kumar Gala Signed-off-by: Paul Mackerras --- include/asm-powerpc/module.h | 77 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 77 insertions(+) create mode 100644 include/asm-powerpc/module.h (limited to 'include/asm-powerpc/module.h') diff --git a/include/asm-powerpc/module.h b/include/asm-powerpc/module.h new file mode 100644 index 00000000000..4438f4fd652 --- /dev/null +++ b/include/asm-powerpc/module.h @@ -0,0 +1,77 @@ +#ifndef _POWERPC_MODULE_H +#define _POWERPC_MODULE_H + +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#include +#include + + +#ifndef __powerpc64__ +/* + * Thanks to Paul M for explaining this. + * + * PPC can only do rel jumps += 32MB, and often the kernel and other + * modules are furthur 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? */ +#else + /* Indices of PLT sections within module. */ + unsigned int core_plt_section; + unsigned int init_plt_section; +#endif + + /* List of BUG addresses, source line numbers and filenames */ + struct list_head bug_list; + struct bug_entry *bug_table; + unsigned int num_bugs; +}; + +extern struct bug_entry *module_find_bug(unsigned long bugaddr); + +/* + * Select ELF headers. + * Make empty section for module_frob_arch_sections to expand. + */ + +#ifdef __powerpc64__ +# define Elf_Shdr Elf64_Shdr +# define Elf_Sym Elf64_Sym +# define Elf_Ehdr Elf64_Ehdr +# ifdef MODULE + asm(".section .stubs,\"ax\",@nobits; .align 3; .previous"); +# endif +#else +# define Elf_Shdr Elf32_Shdr +# define Elf_Sym Elf32_Sym +# define Elf_Ehdr Elf32_Ehdr +# ifdef MODULE + asm(".section .plt,\"ax\",@nobits; .align 3; .previous"); + asm(".section .init.plt,\"ax\",@nobits; .align 3; .previous"); +# endif /* MODULE */ +#endif + + +struct exception_table_entry; +void sort_ex_table(struct exception_table_entry *start, + struct exception_table_entry *finish); + +#endif /* _POWERPC_MODULE_H */ -- cgit v1.2.3-18-g5258