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output: elf -- Move common structures into outelf.h header

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All Elf formats we're supporting at the moment have
are using same structures, move them into a header
and name then with elf_ prefix.

This makes a few fields to carry 64 bit integers while
in former Elf32|x formats they can be 32 bit wide, but
I think it's acceptable tradeoff.

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
This commit is contained in:
Cyrill Gorcunov 2014-09-15 01:36:12 +04:00
parent 500dd5461c
commit c24568b0b0
1 changed files with 39 additions and 0 deletions
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39
output/outelf.h
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@ -38,6 +38,8 @@
#define OUTPUT_OUTELF_H
#include "output/elf.h"
#include "rbtree.h"
#include "saa.h"
/* symbol binding */
#define SYM_GLOBAL ELF32_ST_MKBIND(STB_GLOBAL)
@ -118,4 +120,41 @@ void elf_section_attrib(char *name, char *attr, int pass,
WRITELONG(p, n_value); \
} while (0)
struct elf_reloc {
struct elf_reloc *next;
int64_t address; /* relative to _start_ of section */
int64_t symbol; /* symbol index */
int64_t offset; /* symbol addend */
int type; /* type of relocation */
};
struct elf_symbol {
struct rbtree symv; /* symbol value and symbol rbtree */
int32_t strpos; /* string table position of name */
int32_t section; /* section ID of the symbol */
int type; /* symbol type */
int other; /* symbol visibility */
int32_t size; /* size of symbol */
int32_t globnum; /* symbol table offset if global */
struct elf_symbol *nextfwd; /* list of unresolved-size symbols */
char *name; /* used temporarily if in above list */
};
struct elf_section {
struct SAA *data;
uint64_t len;
uint64_t size;
uint64_t nrelocs;
int32_t index;
int type; /* SHT_PROGBITS or SHT_NOBITS */
uint64_t align; /* alignment: power of two */
uint64_t flags; /* section flags */
char *name;
struct SAA *rel;
uint64_t rellen;
struct elf_reloc *head;
struct elf_reloc **tail;
struct rbtree *gsyms; /* global symbols in section */
};
#endif /* OUTPUT_OUTELF_H */