From: Michael Urman <mu@tortall.net>
Date: Sat, 2 Aug 2003 17:45:53 +0000 (-0000)
Subject: Add Elf64 constants to elf.h
X-Git-Tag: v0.3.0~6^2~18
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=0e8c56a4ed200da4de118b7942d333f8dffd986c;p=yasm

Add Elf64 constants to elf.h
Add elf_set_arch function to tell elf backend the machine, allow to deny.
Move arch/machine checking into backend.

svn path=/trunk/yasm/; revision=1026
---

diff --git a/modules/objfmts/elf/elf-objfmt.c b/modules/objfmts/elf/elf-objfmt.c
index 37e0853f..15be24d5 100644
--- a/modules/objfmts/elf/elf-objfmt.c
+++ b/modules/objfmts/elf/elf-objfmt.c
@@ -131,10 +131,7 @@ elf_objfmt_initialize(const char *in_filename,
     elf_symtab_entry *entry;
 
     cur_arch = a;
-
-    /* FIXME: only support x86 arch, x86 machine */
-    if (yasm__strcasecmp(cur_arch->keyword, "x86") != 0 ||
-	yasm__strcasecmp(machine, "x86") != 0)
+    if (!elf_set_arch(a, machine))
 	return 1;
 
     elf_objfmt_parse_scnum = 4;    /* section numbering starts at 0;
diff --git a/modules/objfmts/elf/elf.c b/modules/objfmts/elf/elf.c
index 106c5136..da19bd71 100644
--- a/modules/objfmts/elf/elf.c
+++ b/modules/objfmts/elf/elf.c
@@ -34,6 +34,23 @@
 #define YASM_OBJFMT_ELF_INTERNAL
 #include "elf.h"
 
+static /*@dependent@*/ yasm_arch *cur_arch;
+static const char *arch_machine = NULL;
+
+int
+elf_set_arch(yasm_arch *arch, const char *machine)
+{
+    cur_arch = arch;
+    arch_machine = machine;
+
+    /* FIXME: only support x86 arch, x86 machine */
+    if (yasm__strcasecmp(cur_arch->keyword, "x86") != 0 ||
+	yasm__strcasecmp(machine, "x86") != 0)
+	return 0;
+
+    return 1;
+}
+
 /* reloc functions */
 elf_reloc_entry *
 elf_reloc_entry_new(yasm_symrec *sym,
diff --git a/modules/objfmts/elf/elf.h b/modules/objfmts/elf/elf.h
index 339aff65..207b5fb1 100644
--- a/modules/objfmts/elf/elf.h
+++ b/modules/objfmts/elf/elf.h
@@ -49,6 +49,8 @@ typedef enum {
     ET_EXEC = 2,				/* Executable */
     ET_DYN = 3,					/* Shared object */
     ET_CORE = 4,				/* Core */
+    ET_LOOS = 0xfe00,				/* Environment specific */
+    ET_HIOS = 0xfeff,
     ET_LOPROC = 0xff00,				/* Processor specific */
     ET_HIPROC = 0xffff
 } elf_file_type;
@@ -84,10 +86,19 @@ typedef enum {
     EI_CLASS = 4,				/* File class */
     EI_DATA = 5,				/* Data encoding */
     EI_VERSION = 6,				/* File version */
-    EI_PAD = 7,					/* Pad through end */
+    EI_OSABI = 7,				/* OS and ABI */
+    EI_ABIVERSION = 8,				/* version of ABI */
+
+    EI_PAD = 9,					/* Pad to end; start here */
     EI_NIDENT = 16				/* Sizeof e_ident[] */
 } elf_identification_index;
 
+typedef enum {
+    ELFOSABI_SYSV = 0,				/* System V ABI */
+    ELFOSABI_HPUX = 1,				/* HP-UX os */
+    ELFOSABI_STANDALONE = 255			/* Standalone / embedded app */
+} elf_osabi_index;
+
 typedef enum {
     ELFCLASSNONE = 0,				/* invalid */
     ELFCLASS32 = 1,				/* 32-bit */
@@ -115,6 +126,8 @@ typedef enum {
     SHT_SHLIB = 10,		/* reserved; unspecified semantics */
     SHT_DYNSYM = 11,		/* like symtab, but more for dynamic linking */
 
+    SHT_LOOS = 0x60000000,	/* reserved for environment specific use */
+    SHT_HIOS = 0x6fffffff,
     SHT_LOPROC = 0x70000000,	/* reserved for processor specific semantics */
     SHT_HIPROC = 0x7fffffff/*,
     SHT_LOUSER = 0x80000000,*/	/* reserved for applications; safe */
@@ -125,7 +138,8 @@ typedef enum {
 typedef enum {
     SHF_WRITE = 0x1,		/* data should be writable at runtime */
     SHF_ALLOC = 0x2,		/* occupies memory at runtime */
-    SHF_EXECINSTR = 0x4/*,*/	/* contains machine instructions */
+    SHF_EXECINSTR = 0x4,	/* contains machine instructions */
+    SHF_MASKOS = 0x0f000000/*,*//* environment specific use */
     /*SHF_MASKPROC = 0xf0000000*/	/* bits reserved for processor specific needs */
 } elf_section_flags;
 
@@ -135,6 +149,8 @@ typedef enum {
     SHN_LORESERVE = 0xff00,	/* reserved for various semantics */
     SHN_LOPROC = 0xff00,	/* reserved for processor specific semantics */
     SHN_HIPROC = 0xff1f,
+    SHN_LOOS = 0xff20,		/* reserved for environment specific use */
+    SHN_HIOS = 0xff3f,
     SHN_ABS = 0xfff1,		/* associated symbols don't change on reloc */
     SHN_COMMON = 0xfff2,	/* associated symbols refer to unallocated */
     SHN_HIRESERVE = 0xffff
@@ -146,6 +162,8 @@ typedef enum {
     STB_GLOBAL = 1,		/* visible to all combined object files */
     STB_WEAK = 2,		/* global but lower precedence */
 
+    STB_LOOS = 10,		/* Environment specific use */
+    STB_HIOS = 12,
     STB_LOPROC = 13,		/* reserved for processor specific semantics */
     STB_HIPROC = 15
 } elf_symbol_binding;
@@ -158,6 +176,8 @@ typedef enum {
     STT_SECTION = 3,		/* a section: often for relocation, STB_LOCAL */
     STT_FILE = 4,		/* often source filename: STB_LOCAL, SHN_ABS */
 
+    STT_LOOS = 10,		/* Environment specific use */
+    STT_HIOS = 12,
     STT_LOPROC = 13,		/* reserved for processor specific semantics */
     STT_HIPROC = 15
 } elf_symbol_type;
@@ -173,6 +193,8 @@ typedef enum {
 #define ELF32_ST_INFO(bind, type)	(((bind) << 4) + ((type) & 0xf))
 #define ELF32_R_INFO(s,t)		(((s)<<8)+(unsigned char)(t))
 
+#define ELF64_R_INFO(s,t)		(((s)<<32) + ((t) & 0xffffffffL))
+
 /* elf relocation type - index of semantics */
 typedef enum {
     R_386_NONE = 0,		/* none */
@@ -262,6 +284,8 @@ struct elf_symtab_entry {
 
 
 
+int elf_set_arch(struct yasm_arch *arch, const char *machine);
+
 /* reloc functions */
 elf_reloc_entry *elf_reloc_entry_new(yasm_symrec *sym,
 				     elf_address addr,