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authorGuillaume Cottenceau <gc@mandriva.com>2001-02-22 17:21:43 +0000
committerGuillaume Cottenceau <gc@mandriva.com>2001-02-22 17:21:43 +0000
commit31d44a623579fbca300f20bc751c7278c4375980 (patch)
treee54cb0772ebc6ffce9fc7ccdcc61d094751d3b54 /mdk-stage1/insmod-modutils/include/kallsyms.h
parent446293819c1c265f0799036bde77f98145187ecf (diff)
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use modutils for non Intel arch's
Diffstat (limited to 'mdk-stage1/insmod-modutils/include/kallsyms.h')
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diff --git a/mdk-stage1/insmod-modutils/include/kallsyms.h b/mdk-stage1/insmod-modutils/include/kallsyms.h
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+/* kallsyms headers
+ Copyright 2000 Keith Owens <kaos@ocs.com.au>
+
+ This file is part of the Linux modutils. It is exported to kernel
+ space so debuggers can access the kallsyms data.
+
+ The kallsyms data contains all the non-stack symbols from a kernel
+ or a module. The kernel symbols are held between __start___kallsyms
+ and __stop___kallsyms. The symbols for a module are accessed via
+ the struct module chain which is based at module_list.
+
+ 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.
+
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ident "$Id$"
+
+#ifndef MODUTILS_KALLSYMS_H
+#define MODUTILS_KALLSYMS_H 1
+
+/* Have to (re)define these ElfW entries here because external kallsyms
+ * code does not have access to modutils/include/obj.h. This code is
+ * included from user spaces tools (modutils) and kernel, they need
+ * different includes.
+ */
+
+#ifndef ELFCLASS32
+#ifdef __KERNEL__
+#include <linux/elf.h>
+#else /* __KERNEL__ */
+#include <elf.h>
+#endif /* __KERNEL__ */
+#endif /* ELFCLASS32 */
+
+#ifndef ELFCLASSM
+#define ELFCLASSM ELF_CLASS
+#endif
+
+#ifndef ElfW
+# if ELFCLASSM == ELFCLASS32
+# define ElfW(x) Elf32_ ## x
+# define ELFW(x) ELF32_ ## x
+# else
+# define ElfW(x) Elf64_ ## x
+# define ELFW(x) ELF64_ ## x
+# endif
+#endif
+
+/* Format of data in the kallsyms section.
+ * Most of the fields are small numbers but the total size and all
+ * offsets can be large so use the 32/64 bit types for these fields.
+ *
+ * Do not use sizeof() on these structures, modutils may be using extra
+ * fields. Instead use the size fields in the header to access the
+ * other bits of data.
+ */
+
+struct kallsyms_header {
+ int size; /* Size of this header */
+ ElfW(Word) total_size; /* Total size of kallsyms data */
+ int sections; /* Number of section entries */
+ ElfW(Off) section_off; /* Offset to first section entry */
+ int section_size; /* Size of one section entry */
+ int symbols; /* Number of symbol entries */
+ ElfW(Off) symbol_off; /* Offset to first symbol entry */
+ int symbol_size; /* Size of one symbol entry */
+ ElfW(Off) string_off; /* Offset to first string */
+ ElfW(Addr) start; /* Start address of first section */
+ ElfW(Addr) end; /* End address of last section */
+};
+
+struct kallsyms_section {
+ ElfW(Addr) start; /* Start address of section */
+ ElfW(Word) size; /* Size of this section */
+ ElfW(Off) name_off; /* Offset to section name */
+ ElfW(Word) flags; /* Flags from section */
+};
+
+struct kallsyms_symbol {
+ ElfW(Off) section_off; /* Offset to section that owns this symbol */
+ ElfW(Addr) symbol_addr; /* Address of symbol */
+ ElfW(Off) name_off; /* Offset to symbol name */
+};
+
+#define KALLSYMS_SEC_NAME "__kallsyms"
+#define KALLSYMS_IDX 2 /* obj_kallsyms creates kallsyms as section 2 */
+
+#define kallsyms_next_sec(h,s) \
+ ((s) = (struct kallsyms_section *)((char *)(s) + (h)->section_size))
+#define kallsyms_next_sym(h,s) \
+ ((s) = (struct kallsyms_symbol *)((char *)(s) + (h)->symbol_size))
+
+int kallsyms_symbol_to_address(
+ const char *name, /* Name to lookup */
+ unsigned long *token, /* Which module to start with */
+ const char **mod_name, /* Set to module name or "kernel" */
+ unsigned long *mod_start, /* Set to start address of module */
+ unsigned long *mod_end, /* Set to end address of module */
+ const char **sec_name, /* Set to section name */
+ unsigned long *sec_start, /* Set to start address of section */
+ unsigned long *sec_end, /* Set to end address of section */
+ const char **sym_name, /* Set to full symbol name */
+ unsigned long *sym_start, /* Set to start address of symbol */
+ unsigned long *sym_end /* Set to end address of symbol */
+ );
+
+int kallsyms_address_to_symbol(
+ unsigned long address, /* Address to lookup */
+ const char **mod_name, /* Set to module name */
+ unsigned long *mod_start, /* Set to start address of module */
+ unsigned long *mod_end, /* Set to end address of module */
+ const char **sec_name, /* Set to section name */
+ unsigned long *sec_start, /* Set to start address of section */
+ unsigned long *sec_end, /* Set to end address of section */
+ const char **sym_name, /* Set to full symbol name */
+ unsigned long *sym_start, /* Set to start address of symbol */
+ unsigned long *sym_end /* Set to end address of symbol */
+ );
+
+#endif /* kallsyms.h */