diff options
Diffstat (limited to 'arch/powerpc/include/asm/module.h')
| -rw-r--r-- | arch/powerpc/include/asm/module.h | 65 |
1 files changed, 33 insertions, 32 deletions
diff --git a/arch/powerpc/include/asm/module.h b/arch/powerpc/include/asm/module.h index c1df590ec444..864e22deaa2c 100644 --- a/arch/powerpc/include/asm/module.h +++ b/arch/powerpc/include/asm/module.h @@ -1,25 +1,18 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ #ifndef _ASM_POWERPC_MODULE_H #define _ASM_POWERPC_MODULE_H #ifdef __KERNEL__ -/* - * 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 <linux/list.h> #include <asm/bug.h> #include <asm-generic/module.h> - #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 + * 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. */ @@ -34,35 +27,48 @@ struct ppc_plt_entry { struct mod_arch_specific { #ifdef __powerpc64__ unsigned int stubs_section; /* Index of stubs section in module */ + unsigned int stub_count; /* Number of stubs used */ +#ifdef CONFIG_PPC_KERNEL_PCREL + unsigned int got_section; /* What section is the GOT? */ + unsigned int pcpu_section; /* .data..percpu section */ +#else unsigned int toc_section; /* What section is the TOC? */ -#ifdef CONFIG_DYNAMIC_FTRACE - unsigned long toc; - unsigned long tramp; + bool toc_fixed; /* Have we fixed up .TOC.? */ #endif +#ifdef CONFIG_PPC64_ELF_ABI_V1 + /* For module function descriptor dereference */ + unsigned long start_opd; + unsigned long end_opd; +#endif #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; + unsigned long tramp_regs; +#ifdef CONFIG_PPC_FTRACE_OUT_OF_LINE + struct ftrace_ool_stub *ool_stubs; + unsigned int ool_stub_count; + unsigned int ool_stub_index; +#endif #endif -#endif /* powerpc64 */ - - /* 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. + * Make empty sections for module_frob_arch_sections to expand. */ #ifdef __powerpc64__ # ifdef MODULE asm(".section .stubs,\"ax\",@nobits; .align 3; .previous"); +# ifdef CONFIG_PPC_KERNEL_PCREL + asm(".section .mygot,\"a\",@nobits; .align 3; .previous"); +# endif # endif #else # ifdef MODULE @@ -72,20 +78,15 @@ struct mod_arch_specific { #endif #ifdef CONFIG_DYNAMIC_FTRACE -# ifdef MODULE - asm(".section .ftrace.tramp,\"ax\",@nobits; .align 3; .previous"); -# endif /* MODULE */ +int module_trampoline_target(struct module *mod, unsigned long trampoline, + unsigned long *target); +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 - -struct exception_table_entry; -void sort_ex_table(struct exception_table_entry *start, - struct exception_table_entry *finish); - -#ifdef CONFIG_MODVERSIONS -#define ARCH_RELOCATES_KCRCTAB - -extern const unsigned long reloc_start[]; -#endif #endif /* __KERNEL__ */ #endif /* _ASM_POWERPC_MODULE_H */ |