Adding upstream version 6.0.4-dfsg.upstream/6.0.4-dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 190 insertions, 0 deletions

diff --git a/include/iprt/formats/elf32.h b/include/iprt/formats/elf32.h
new file mode 100644
index 00000000..2d9d69e8
--- /dev/null
+++ b/include/iprt/formats/elf32.h
@@ -0,0 +1,190 @@
+/* $Id: elf32.h $ */
+/** @file
+ * IPRT - ELF 32-bit header.
+ */
+
+/*
+ * Copyright (C) 2010-2019 Oracle Corporation
+ *
+ * This file is part of VirtualBox Open Source Edition (OSE), as
+ * available from http://www.virtualbox.org. This file is free software;
+ * you can redistribute it and/or modify it under the terms of the GNU
+ * General Public License (GPL) as published by the Free Software
+ * Foundation, in version 2 as it comes in the "COPYING" file of the
+ * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
+ * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
+ * VirtualBox OSE distribution, in which case the provisions of the
+ * CDDL are applicable instead of those of the GPL.
+ *
+ * You may elect to license modified versions of this file under the
+ * terms and conditions of either the GPL or the CDDL or both.
+ */
+
+#ifndef IPRT_INCLUDED_formats_elf32_h
+#define IPRT_INCLUDED_formats_elf32_h
+#ifndef RT_WITHOUT_PRAGMA_ONCE
+# pragma once
+#endif
+
+#include <iprt/assertcompile.h>
+#include "elf-common.h"
+
+/*
+ * ELF 32 standard types.
+ */
+typedef uint32_t        Elf32_Addr;
+typedef uint16_t        Elf32_Half;
+typedef uint32_t        Elf32_Off;
+typedef int32_t         Elf32_Sword;
+typedef uint32_t        Elf32_Word;
+
+/*
+ * Ensure type size correctness in accordance to                                                             .
+ * Portable Format Specification (for ELF), Version 1.1, fig 1-2.                                            .
+ */
+AssertCompileSize(Elf32_Addr,   4);
+AssertCompileSize(Elf32_Half,   2);
+AssertCompileSize(Elf32_Off,    4);
+AssertCompileSize(Elf32_Sword,  4);
+AssertCompileSize(Elf32_Word,   4);
+
+/*
+ * ELF 32 non-standard types for convenience.
+ */
+typedef Elf32_Word      Elf32_Size;
+typedef Elf32_Word      Elf32_Hashelt;
+
+/*
+ * ELF header.
+ */
+typedef struct
+{
+    unsigned char e_ident[16];      /* ELF identification. */
+    Elf32_Half    e_type;           /* Object file type. */
+    Elf32_Half    e_machine;        /* Machine type. */
+    Elf32_Word    e_version;        /* Object file version. */
+    Elf32_Addr    e_entry;          /* Entry point address. */
+    Elf32_Off     e_phoff;          /* Program header offset. */
+    Elf32_Off     e_shoff;          /* Section header offset. */
+    Elf32_Word    e_flags;          /* Processor-specific flags. */
+    Elf32_Half    e_ehsize;         /* ELF header size. */
+    Elf32_Half    e_phentsize;      /* Size of program header entries. */
+    Elf32_Half    e_phnum;          /* Number of program headers. */
+    Elf32_Half    e_shentsize;      /* Size of section header entries. */
+    Elf32_Half    e_shnum;          /* Number of section headers. */
+    Elf32_Half    e_shstrndx;       /* Section name string table index. */
+} Elf32_Ehdr;
+
+/*
+ * Section header.
+ */
+typedef struct
+{
+    Elf32_Word    sh_name;          /* Section name. */
+    Elf32_Word    sh_type;          /* Section type. */
+    Elf32_Word    sh_flags;         /* Section attributes. */
+    Elf32_Addr    sh_addr;          /* Virtual address in memory. */
+    Elf32_Off     sh_offset;        /* Offset in file. */
+    Elf32_Word    sh_size;          /* Size of section. */
+    Elf32_Word    sh_link;          /* Link to other section. */
+    Elf32_Word    sh_info;          /* Miscellaneous information. */
+    Elf32_Word    sh_addralign;     /* Address alignment boundary. */
+    Elf32_Word    sh_entsize;       /* Size of entries, if section has table. */
+} Elf32_Shdr;
+
+
+/*
+ * Program header.
+ */
+typedef struct
+{
+    Elf32_Word    p_type;           /* Type of segment. */
+    Elf32_Off     p_offset;         /* Offset in file. */
+    Elf32_Addr    p_vaddr;          /* Virtual address in memory. */
+    Elf32_Addr    p_paddr;          /* Physical address (reserved). */
+    Elf32_Word    p_filesz;         /* Size of segment in file. */
+    Elf32_Word    p_memsz;          /* Size of segment in memory. */
+    Elf32_Word    p_flags;          /* Segment attributes. */
+    Elf32_Word    p_align;          /* Alignment of segment. */
+} Elf32_Phdr;
+
+
+/*
+ * Note header.
+ */
+typedef struct
+{
+    Elf32_Word    n_namesz;         /* Length of note's name. */
+    Elf32_Word    n_descsz;         /* Length of note's description. */
+    Elf32_Word    n_type;           /* Type of note. */
+} Elf32_Nhdr;
+
+
+/*
+ * Symbol table entry.
+ */
+typedef struct
+{
+    Elf32_Word    st_name;          /* Symbol name. */
+    Elf32_Addr    st_value;         /* Symbol value. */
+    Elf32_Word    st_size;          /* Size associated with symbol. */
+    unsigned char st_info;          /* Type and binding attributes. */
+    unsigned char st_other;         /* Reserved. */
+    Elf32_Half    st_shndx;         /* Section header table index. */
+} Elf32_Sym;
+
+
+/*
+ * Relocations.
+ */
+typedef struct
+{
+    Elf32_Addr    r_offset;         /* Location to be relocated. */
+    Elf32_Word    r_info;           /* Symbol index and type of relocation. */
+} Elf32_Rel;
+
+typedef struct
+{
+    Elf32_Addr    r_offset;         /* Location to be relocated. */
+    Elf32_Word    r_info;           /* Symbol index and type of relocation. */
+    Elf32_Sword   r_addend;         /* Constant part of expression. */
+} Elf32_Rela;
+
+/*
+ * Dynamic section entry.
+ * ".dynamic" section contains an array of this.
+ */
+typedef struct
+{
+    Elf32_Sword   d_tag;            /* Type of entry. */
+    union
+    {
+        Elf32_Word    d_val;        /* Integer value. */
+        Elf32_Addr    d_ptr;        /* Virtual address value. */
+    } d_un;
+} Elf32_Dyn;
+
+/*
+ * Helper macros.
+ */
+/** The symbol's type. */
+#define ELF32_ST_TYPE(info)         ((info) & 0xF)
+/** The symbol's binding. */
+#define ELF32_ST_BIND(info)         ((info) >> 4)
+/** Make st_info. given binding and type. */
+#define ELF32_ST_INFO(bind, type)   (((bind) << 4) + ((type) & 0xf))
+
+/** Relocation type. */
+#define ELF32_R_TYPE(info)          ((unsigned char)(info))
+/** Relocation symbol index. */
+#define ELF32_R_SYM(info)           ((info) >> 8)
+/** Make r_info given the symbol index and type.  */
+#define ELF32_R_INFO(sym, type)     (((sym) << 8) + (unsigned char)(type))
+
+
+#endif /* !IPRT_INCLUDED_formats_elf32_h */
+