Adjust for monotone.

1 files changed, 534 insertions, 0 deletions

diff --git a/libelf/libelfP.h b/libelf/libelfP.h
new file mode 100644
index 00000000..100f349a
--- /dev/null
+++ b/libelf/libelfP.h
@@ -0,0 +1,534 @@
+/* Internal interfaces for libelf.
+   Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2005 Red Hat, Inc.
+   Contributed by Ulrich Drepper <drepper@redhat.com>, 1998.
+
+   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, version 2.
+
+   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.  */
+
+#ifndef _LIBELFP_H
+#define _LIBELFP_H 1
+
+#include <ar.h>
+#include <gelf.h>
+#include <stdint.h>
+
+/* gettext helper macros.  */
+#define _(Str) dgettext ("libelf", Str)
+
+
+/* Helper Macros to write 32 bit and 64 bit functions.  */
+#define __elfw2_(Bits, Name) __elf##Bits##_##Name
+#define elfw2_(Bits, Name) elf##Bits##_##Name
+#define ElfW2_(Bits, Name) Elf##Bits##_##Name
+#define ELFW2_(Bits, Name) ELF##Bits##_##Name
+#define ELFW_(Name, Bits) Name##Bits
+#define __elfw2(Bits, Name) __elfw2_(Bits, Name)
+#define elfw2(Bits, Name) elfw2_(Bits, Name)
+#define ElfW2(Bits, Name) ElfW2_(Bits, Name)
+#define ELFW2(Bits, Name) ELFW2_(Bits, Name)
+#define ELFW(Name, Bits)  ELFW_(Name, Bits)
+
+
+/* Sizes of the external types, for 32 bits objects.  */
+#define ELF32_FSZ_ADDR   4
+#define ELF32_FSZ_OFF    4
+#define ELF32_FSZ_HALF   2
+#define ELF32_FSZ_WORD   4
+#define ELF32_FSZ_SWORD  4
+#define ELF32_FSZ_XWORD  8
+#define ELF32_FSZ_SXWORD 8
+
+/* Same for 64 bits objects.  */
+#define ELF64_FSZ_ADDR   8
+#define ELF64_FSZ_OFF    8
+#define ELF64_FSZ_HALF   2
+#define ELF64_FSZ_WORD   4
+#define ELF64_FSZ_SWORD  4
+#define ELF64_FSZ_XWORD  8
+#define ELF64_FSZ_SXWORD 8
+
+
+/* This is an extension of the ELF_F_* enumeration.  The values here are
+   not part of the library interface, they are only used internally.  */
+enum
+{
+  ELF_F_MMAPPED = 0x40,
+  ELF_F_MALLOCED = 0x80,
+  ELF_F_FILEDATA = 0x100
+};
+
+
+/* Get definition of all the external types.  */
+#include "exttypes.h"
+
+
+/* Error values.  */
+enum
+{
+  ELF_E_NOERROR = 0,
+  ELF_E_UNKNOWN_ERROR,
+  ELF_E_UNKNOWN_VERSION,
+  ELF_E_UNKNOWN_TYPE,
+  ELF_E_INVALID_HANDLE,
+  ELF_E_SOURCE_SIZE,
+  ELF_E_DEST_SIZE,
+  ELF_E_INVALID_ENCODING,
+  ELF_E_NOMEM,
+  ELF_E_INVALID_FILE,
+  ELF_E_INVALID_OP,
+  ELF_E_NO_VERSION,
+  ELF_E_INVALID_CMD,
+  ELF_E_RANGE,
+  ELF_E_ARCHIVE_FMAG,
+  ELF_E_INVALID_ARCHIVE,
+  ELF_E_NO_ARCHIVE,
+  ELF_E_NO_INDEX,
+  ELF_E_READ_ERROR,
+  ELF_E_WRITE_ERROR,
+  ELF_E_INVALID_CLASS,
+  ELF_E_INVALID_INDEX,
+  ELF_E_INVALID_OPERAND,
+  ELF_E_INVALID_SECTION,
+  ELF_E_INVALID_COMMAND,
+  ELF_E_WRONG_ORDER_EHDR,
+  ELF_E_FD_DISABLED,
+  ELF_E_FD_MISMATCH,
+  ELF_E_OFFSET_RANGE,
+  ELF_E_NOT_NUL_SECTION,
+  ELF_E_DATA_MISMATCH,
+  ELF_E_INVALID_SECTION_HEADER,
+  ELF_E_INVALID_DATA,
+  ELF_E_DATA_ENCODING,
+  ELF_E_SECTION_TOO_SMALL,
+  ELF_E_INVALID_ALIGN,
+  ELF_E_INVALID_SHENTSIZE,
+  ELF_E_UPDATE_RO,
+  ELF_E_NOFILE,
+  ELF_E_GROUP_NOT_REL,
+  ELF_E_INVALID_PHDR,
+  ELF_E_NO_PHDR,
+  /* Keep this as the last entry.  */
+  ELF_E_NUM
+};
+
+
+/* The visible `Elf_Data' type is not sufficent for some operations due
+   to a misdesigned interface.  Extend it for internal purposes.  */
+typedef struct
+{
+  Elf_Data d;
+  Elf_Scn *s;
+} Elf_Data_Scn;
+
+
+/* List of `Elf_Data' descriptors.  This is what makes up the section
+   contents.  */
+typedef struct Elf_Data_List
+{
+  /* `data' *must* be the first element in the struct.  */
+  Elf_Data_Scn data;
+  struct Elf_Data_List *next;
+  int flags;
+} Elf_Data_List;
+
+
+/* Descriptor for ELF section.  */
+struct Elf_Scn
+{
+  /* We have to distinguish several different situations:
+
+     1. the section is user created.  Therefore there is no file or memory
+        region to read the data from.  Here we have two different subcases:
+
+        a) data was not yet added (before the first `elf_newdata' call)
+
+        b) at least one data set is available
+
+     2. this is a section from a file/memory region.  We have to read the
+        current content in one data block if we have to.  But we don't
+        read the data until it is necessary.  So we have the subcases:
+
+        a) the section in the file has size zero (for whatever reason)
+
+        b) the data of the file is not (yet) read
+
+        c) the data is read and available.
+
+     In addition to this we have different data sets, the raw and the converted
+     data.  This distinction only exists for the data read from the file.
+     All user-added data set (all but the first when read from the file or
+     all of them for user-create sections) are the same in both formats.
+     We don't create the converted data before it is necessary.
+
+     The `data_read' element signals whether data is available in the
+     raw format.
+
+     If there is data from the file/memory region or if read one data
+     set is added the `rawdata_list_read' pointer in non-NULL and points
+     to the last filled data set.  `raw_datalist_rear' is therefore NULL
+     only if there is no data set at all.
+
+     This so far allows to distinguish all but two cases (given that the
+     `rawdata_list' and `data_list' entries are initialized to zero) is
+     between not yet loaded data from the file/memory region and a section
+     with zero size and type ELF_T_BYTE.   */
+  Elf_Data_List data_list;	/* List of data buffers.  */
+  Elf_Data_List *data_list_rear; /* Pointer to the rear of the data list. */
+
+  Elf_Data_Scn rawdata;		/* Uninterpreted data of the section.  */
+
+  int data_read;		/* Nonzero if the section was created by the
+				   user or if the data from the file/memory
+				   is read.  */
+
+  size_t index;			/* Index of this section.  */
+  struct Elf *elf;		/* The underlying ELF file.  */
+
+  union
+  {
+    Elf32_Shdr *e32;		/* Pointer to 32bit section header.  */
+    Elf64_Shdr *e64;		/* Pointer to 64bit section header.  */
+  } shdr;
+
+  unsigned int shdr_flags;	/* Section header modified?  */
+  unsigned int flags;		/* Section changed in size?  */
+
+  char *rawdata_base;		/* The unmodified data of the section.  */
+  char *data_base;		/* The converted data of the section.  */
+
+  struct Elf_ScnList *list;	/* Pointer the the section list element the
+				   data is in.  */
+};
+
+
+/* List of section.  */
+typedef struct Elf_ScnList
+{
+  unsigned int cnt;		/* Number of elements of 'data' used.  */
+  unsigned int max;		/* Number of elements of 'data' allocated.  */
+  struct Elf_ScnList *next;	/* Next block of sections.  */
+  struct Elf_Scn data[0];	/* Section data.  */
+} Elf_ScnList;
+
+
+/* The ELF descriptor.  */
+struct Elf
+{
+  /* What kind of file is underneath (ELF file, archive...).  */
+  Elf_Kind kind;
+
+  /* Command used to create this descriptor.  */
+  Elf_Cmd cmd;
+
+  /* The binary class.  */
+  unsigned int class;
+
+  /* The used file descriptor.  -1 if not available anymore.  */
+  int fildes;
+
+  /* Offset in the archive this file starts or zero.  */
+  off_t start_offset;
+
+  /* Size of the file in the archive or the entire file size, or ~0
+     for an (yet) unknown size.  */
+  size_t maximum_size;
+
+  /* Address to which the file was mapped.  NULL if not mapped.  */
+  void *map_address;
+
+  /* Describes the way the memory was allocated and if the dirty bit is
+     signalled it means that the whole file has to be rewritten since
+     the layout changed.  */
+  int flags;
+
+  /* When created for an archive member this points to the descriptor
+     for the archive. */
+  Elf *parent;
+
+  /* Lock to handle multithreaded programs.  */
+  rwlock_define (,lock);
+
+  /* Reference counting for the descriptor.  */
+  int ref_count;
+
+  struct Elf *next;             /* Used in list of archive descriptors.  */
+
+  union
+  {
+    struct
+    {
+      int ehdr_flags;		/* Flags (dirty) for ELF header.  */
+      int phdr_flags;		/* Flags (dirty|malloc) for program header.  */
+      int shdr_malloced;	/* Nonzero if shdr array was allocated.  */
+
+      /* The next fields are only useful when testing for ==/!= NULL.  */
+      void *ehdr;
+      void *shdr;
+      void *phdr;
+
+      Elf_ScnList *scns_last;	/* Last element in the section list.
+				   If NULL the data has not yet been
+				   read from the file.  */
+      unsigned int scnincr;	/* Number of sections allocate the last
+				   time.  */
+      off64_t sizestr_offset;	/* Offset of the size string in the parent
+				   if this is an archive member.  */
+    } elf;
+
+    struct
+    {
+      int ehdr_flags;		/* Flags (dirty) for ELF header.  */
+      int phdr_flags;		/* Flags (dirty|malloc) for program header.  */
+      int shdr_malloced;	/* Nonzero if shdr array was allocated.  */
+
+      Elf32_Ehdr *ehdr;		/* Pointer to the ELF header.  This is
+				   never malloced.  */
+      Elf32_Shdr *shdr;		/* Used when reading from a file.  */
+      Elf32_Phdr *phdr;		/* Pointer to the program header array.  */
+      Elf_ScnList *scns_last;	/* Last element in the section list.
+				   If NULL the data has not yet been
+				   read from the file.  */
+      unsigned int scnincr;	/* Number of sections allocate the last
+				   time.  */
+      off64_t sizestr_offset;	/* Offset of the size string in the parent
+				   if this is an archive member.  */
+      Elf32_Ehdr ehdr_mem;	/* Memory used for ELF header when not
+				   mmaped.  */
+      char __e32scnspad[sizeof (Elf64_Ehdr) - sizeof (Elf32_Ehdr)];
+
+      /* The section array.  */
+      Elf_ScnList scns;
+    } elf32;
+
+    struct
+    {
+      int ehdr_flags;		/* Flags (dirty) for ELF header.  */
+      int phdr_flags;		/* Flags (dirty|malloc) for program header.  */
+      int shdr_malloced;	/* Nonzero if shdr array was allocated.  */
+
+      Elf64_Ehdr *ehdr;		/* Pointer to the ELF header.  This is
+				   never malloced.  */
+      Elf64_Shdr *shdr;		/* Used when reading from a file.  */
+      Elf64_Phdr *phdr;		/* Pointer to the program header array.  */
+      Elf_ScnList *scns_last;	/* Last element in the section list.
+				   If NULL the data has not yet been
+				   read from the file.  */
+      unsigned int scnincr;	/* Number of sections allocate the last
+				   time.  */
+      off64_t sizestr_offset;	/* Offset of the size string in the parent
+				   if this is an archive member.  */
+      Elf64_Ehdr ehdr_mem;	/* Memory used for ELF header when not
+				   mmaped.  */
+
+      /* The section array.  */
+      Elf_ScnList scns;
+    } elf64;
+
+    struct
+    {
+      int has_index;		/* Set when file has index.  0 means
+				   undecided, > 0 means it has one.  */
+      Elf_Arsym *ar_sym;	/* Symbol table returned by elf_getarsym.  */
+      size_t ar_sym_num;	/* Number of entries in `ar_sym'.  */
+      char *long_names;		/* If no index is available but long names
+				   are used this elements points to the data.*/
+      size_t long_names_len;	/* Length of the long name table.  */
+      off_t offset;		/* Offset in file we are currently at.
+				   elf_next() advances this to the next
+				   member of the archive.  */
+      Elf_Arhdr elf_ar_hdr;	/* Structure returned by 'elf_getarhdr'.  */
+      struct ar_hdr ar_hdr;	/* Header read from file.  */
+      char ar_name[16];		/* NUL terminated ar_name of elf_ar_hdr.  */
+      char raw_name[17];	/* This is a buffer for the NUL terminated
+				   named raw_name used in the elf_ar_hdr.  */
+      struct Elf *children;	/* List of all descriptors for this archive. */
+    } ar;
+  } state;
+
+  /* There absolutely never must be anything following the union.  */
+};
+
+
+/* Type of the conversion functions.  These functions will convert the
+   byte order.  */
+typedef void (*xfct_t) (void *, const void *, size_t, int);
+
+/* The table with the function pointers.  */
+extern const xfct_t __elf_xfctstom[EV_NUM - 1][EV_NUM - 1][ELFCLASSNUM - 1][ELF_T_NUM] attribute_hidden;
+extern const xfct_t __elf_xfctstof[EV_NUM - 1][EV_NUM - 1][ELFCLASSNUM - 1][ELF_T_NUM] attribute_hidden;
+
+
+/* Array with sizes of the external types indexed by ELF version, binary
+   class, and type. */
+extern const size_t __libelf_type_sizes[EV_NUM - 1][ELFCLASSNUM - 1][ELF_T_NUM] attribute_hidden;
+/* We often have to access the size for a type in the current version.  */
+#if EV_NUM != 2
+# define elf_typesize(class,type,n) \
+  elfw2(class,fsize) (type, n, __libelf_version)
+#else
+# define elf_typesize(class,type,n) \
+  (__libelf_type_sizes[EV_CURRENT - 1][ELFW(ELFCLASS,class) - 1][type] * n)
+#endif
+
+/* Currently selected version of the ELF specification.  */
+extern unsigned int __libelf_version attribute_hidden;
+
+/* The byte value used for filling gaps.  */
+extern int __libelf_fill_byte attribute_hidden;
+
+/* Nonzero if the version was set.  */
+extern int __libelf_version_initialized attribute_hidden;
+
+
+/* The libelf API does not have such a function but it is still useful.
+   Get the memory size for the given type.
+
+   These functions cannot be marked internal since they are aliases
+   of the export elfXX_fsize functions.*/
+extern size_t __elf32_msize (Elf_Type __type, size_t __count,
+			     unsigned int __version);
+extern size_t __elf64_msize (Elf_Type __type, size_t __count,
+			     unsigned int __version);
+
+
+/* Create Elf descriptor from memory image.  */
+extern Elf *__libelf_read_mmaped_file (int fildes, void *map_address,
+				       off_t offset, size_t maxsize,
+				       Elf_Cmd cmd, Elf *parent)
+     internal_function;
+
+/* Set error value.  */
+extern void __libelf_seterrno (int value) internal_function;
+
+/* Get the next archive header.  */
+extern int __libelf_next_arhdr (Elf *elf) internal_function;
+
+/* Read all of the file associated with the descriptor.  */
+extern char *__libelf_readall (Elf *elf) internal_function;
+
+/* Read the complete section table and convert the byte order if necessary.  */
+extern int __libelf_readsections (Elf *elf) internal_function;
+
+/* Store the information for the raw data in the `rawdata_list' element.  */
+extern int __libelf_set_rawdata (Elf_Scn *scn) internal_function;
+
+
+/* Helper functions for elf_update.  */
+extern off_t __elf32_updatenull (Elf *elf, int *change_bop, size_t shnum)
+     internal_function;
+extern off_t __elf64_updatenull (Elf *elf, int *change_bop, size_t shnum)
+     internal_function;
+
+extern int __elf32_updatemmap (Elf *elf, int change_bo, size_t shnum)
+     internal_function;
+extern int __elf64_updatemmap (Elf *elf, int change_bo, size_t shnum)
+     internal_function;
+extern int __elf32_updatefile (Elf *elf, int change_bo, size_t shnum)
+     internal_function;
+extern int __elf64_updatefile (Elf *elf, int change_bo, size_t shnum)
+     internal_function;
+
+
+/* Alias for exported functions to avoid PLT entries.  */
+extern int __elf_end_internal (Elf *__elf);
+extern Elf *__elf_begin_internal (int __fildes, Elf_Cmd __cmd, Elf *__ref)
+     attribute_hidden;
+extern Elf32_Ehdr *__elf32_getehdr_internal (Elf *__elf) attribute_hidden;
+extern Elf64_Ehdr *__elf64_getehdr_internal (Elf *__elf) attribute_hidden;
+extern Elf32_Ehdr *__elf32_newehdr_internal (Elf *__elf) attribute_hidden;
+extern Elf64_Ehdr *__elf64_newehdr_internal (Elf *__elf) attribute_hidden;
+extern Elf32_Phdr *__elf32_getphdr_internal (Elf *__elf) attribute_hidden;
+extern Elf64_Phdr *__elf64_getphdr_internal (Elf *__elf) attribute_hidden;
+extern Elf32_Phdr *__elf32_newphdr_internal (Elf *__elf, size_t __cnt)
+     attribute_hidden;
+extern Elf64_Phdr *__elf64_newphdr_internal (Elf *__elf, size_t __cnt)
+     attribute_hidden;
+extern int __elf_getshnum_internal (Elf *__elf, size_t *__dst)
+     attribute_hidden;
+extern int __elf_getshstrndx_internal (Elf *__elf, size_t *__dst)
+     attribute_hidden;
+extern Elf32_Shdr *__elf32_getshdr_internal (Elf_Scn *__scn) attribute_hidden;
+extern Elf64_Shdr *__elf64_getshdr_internal (Elf_Scn *__scn) attribute_hidden;
+extern Elf_Scn *__elf_getscn_internal (Elf *__elf, size_t __index)
+     attribute_hidden;
+extern Elf_Scn *__elf_nextscn_internal (Elf *__elf, Elf_Scn *__scn)
+     attribute_hidden;
+extern Elf_Data *__elf_getdata_internal (Elf_Scn *__scn, Elf_Data *__data)
+     attribute_hidden;
+extern Elf_Data *__elf_rawdata_internal (Elf_Scn *__scn, Elf_Data *__data)
+     attribute_hidden;
+extern char *__elf_strptr_internal (Elf *__elf, size_t __index,
+				    size_t __offset) attribute_hidden;
+extern Elf_Data *__elf32_xlatetom_internal (Elf_Data *__dest,
+					    const Elf_Data *__src,
+					    unsigned int __encode)
+     attribute_hidden;
+extern Elf_Data *__elf64_xlatetom_internal (Elf_Data *__dest,
+					    const Elf_Data *__src,
+					    unsigned int __encode)
+     attribute_hidden;
+extern Elf_Data *__elf32_xlatetof_internal (Elf_Data *__dest,
+					    const Elf_Data *__src,
+					    unsigned int __encode)
+     attribute_hidden;
+extern Elf_Data *__elf64_xlatetof_internal (Elf_Data *__dest,
+					    const Elf_Data *__src,
+					    unsigned int __encode)
+     attribute_hidden;
+extern unsigned int __elf_version_internal (unsigned int __version)
+     attribute_hidden;
+extern unsigned long int __elf_hash_internal (const char *__string)
+       __attribute__ ((__pure__, visibility ("hidden")));
+extern long int __elf32_checksum_internal (Elf *__elf) attribute_hidden;
+extern long int __elf64_checksum_internal (Elf *__elf) attribute_hidden;
+
+
+extern GElf_Ehdr *__gelf_getehdr_internal (Elf *__elf, GElf_Ehdr *__dest);
+extern size_t __gelf_fsize_internal (Elf *__elf, Elf_Type __type,
+				     size_t __count, unsigned int __version)
+     attribute_hidden;
+extern GElf_Shdr *__gelf_getshdr_internal (Elf_Scn *__scn, GElf_Shdr *__dst)
+     attribute_hidden;
+extern GElf_Sym *__gelf_getsym_internal (Elf_Data *__data, int __ndx,
+					 GElf_Sym *__dst) attribute_hidden;
+
+
+extern uint32_t __libelf_crc32 (uint32_t crc, unsigned char *buf, size_t len)
+     attribute_hidden;
+
+
+/* We often have to update a flag iff a value changed.  Make this
+   convenient.  None of the parameters must have a side effect.  */
+#ifdef __GNUC__
+# define update_if_changed(var, exp, flag) \
+  do {									      \
+    __typeof__ (var) *_var = &(var);					      \
+    __typeof__ (exp) _exp = (exp);					      \
+    if (*_var != _exp)							      \
+      {									      \
+	*_var = _exp;							      \
+	(flag) |= ELF_F_DIRTY;						      \
+      }									      \
+  } while (0)
+#else
+# define update_if_changed(var, exp, flag) \
+  do {									      \
+    if ((var) != (exp))							      \
+      {									      \
+	(var) = (exp);							      \
+	(flag) |= ELF_F_DIRTY;						      \
+      }									      \
+  } while (0)
+#endif
+
+#endif  /* libelfP.h */