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52274fadd6
2006-10-07 Soren Sandmann <sandmann@daimi.au.dk> Deal with address offsets. Address lookup is now: - First convert the address to an offset into the file - Then convert to an offset into the text segment - Then add the load address of the text segment (found in the debug binary) - Then finally lookup the result in the symbol table. * elfparser.c (elf_parser_get_text_offset): New function * elfparser.c (elf_parser_lookup_symbol): Treat addresses as offsets into the text segment. * binfile.c (bin_file_new): Store the offset of the text section of the actual binary (not the debug one) (bin_file_lookup_symbol): Subtract text_offset before passing address to elf parser. * module/sysprof-module.c: Remove include of linux/config.h
35 lines
1.2 KiB
C
35 lines
1.2 KiB
C
#include <glib.h>
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typedef struct ElfSym ElfSym;
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typedef struct ElfParser ElfParser;
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ElfParser * elf_parser_new (const char *filename,
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GError **err);
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void elf_parser_free (ElfParser *parser);
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const char * elf_parser_get_debug_link (ElfParser *parser,
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guint32 *crc32);
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const guchar *elf_parser_get_eh_frame (ElfParser *parser);
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gulong elf_parser_get_text_offset (ElfParser *parser);
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/* Lookup a symbol in the file.
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*
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* The symbol returned is const, so don't free it it or anything. It
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* will be valid until elf_parser_free() is called on the parser.
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*
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*
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* The address should be given in "file coordinates". This means that
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* if the file is mapped at address m and offset o, then an address a
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* should be looked up as "a - (m - o)". (m - o) is where the start
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* of the file would have been mapped, so a - (m - o) is the position
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* in the file of a.
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*/
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const ElfSym *elf_parser_lookup_symbol (ElfParser *parser,
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gulong address);
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guint32 elf_parser_get_crc32 (ElfParser *parser);
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const char *elf_parser_get_sym_name (ElfParser *parser,
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const ElfSym *sym);
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gulong elf_parser_get_sym_address (ElfParser *parser,
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const ElfSym *sym);
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char *elf_demangle (const char *name);
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