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-rw-r--r--kernel/arch/powerpc/include/asm/module.h94
1 files changed, 94 insertions, 0 deletions
diff --git a/kernel/arch/powerpc/include/asm/module.h b/kernel/arch/powerpc/include/asm/module.h
new file mode 100644
index 000000000..dcfcad139
--- /dev/null
+++ b/kernel/arch/powerpc/include/asm/module.h
@@ -0,0 +1,94 @@
+#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
+ * 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.? */
+#ifdef CONFIG_DYNAMIC_FTRACE
+ unsigned long toc;
+ unsigned long tramp;
+#endif
+
+#else /* powerpc64 */
+ /* Indices of PLT sections within module. */
+ unsigned int core_plt_section;
+ unsigned int init_plt_section;
+#ifdef CONFIG_DYNAMIC_FTRACE
+ unsigned long tramp;
+#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.
+ */
+
+#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
+
+bool is_module_trampoline(u32 *insns);
+int module_trampoline_target(struct module *mod, u32 *trampoline,
+ unsigned long *target);
+
+struct exception_table_entry;
+void sort_ex_table(struct exception_table_entry *start,
+ struct exception_table_entry *finish);
+
+#if defined(CONFIG_MODVERSIONS) && defined(CONFIG_PPC64)
+#define ARCH_RELOCATES_KCRCTAB
+#define reloc_start PHYSICAL_START
+#endif
+#endif /* __KERNEL__ */
+#endif /* _ASM_POWERPC_MODULE_H */