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utils: add symbol range support for binfile and elfparser

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This commit is contained in:
Christian Hergert
2019-05-28 12:13:49 -07:00
parent f18a7171cf
commit e39feeeeb0
4 changed files with 61 additions and 22 deletions
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23
src/libsysprof/binfile.c
View File

@ -519,7 +519,7 @@ bin_symbol_get_name (bin_file_t *file,
} }
gulong gulong
bin_symbol_get_address (bin_file_t *file, bin_symbol_get_address (bin_file_t *file,
const bin_symbol_t *symbol) const bin_symbol_t *symbol)
{ {
if (file->undefined_name == (char *)symbol) if (file->undefined_name == (char *)symbol)
@ -536,3 +536,24 @@ bin_symbol_get_address (bin_file_t *file,
return elf_parser_get_sym_address (elf, sym); return elf_parser_get_sym_address (elf, sym);
} }
} }
void
bin_symbol_get_address_range (bin_file_t *file,
const bin_symbol_t *symbol,
gulong *begin,
gulong *end)
{
if (file->undefined_name == (char *)symbol)
{
*begin = 0;
*end = 0;
}
else
{
ElfParser *elf;
const ElfSym *sym;
sym = get_elf_sym (file, symbol, &elf);
elf_parser_get_sym_address_range (elf, sym, begin, end);
}
}

24
src/libsysprof/binfile.h
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@ -32,15 +32,19 @@ typedef struct bin_symbol_t bin_symbol_t;
/* Binary File */ /* Binary File */
bin_file_t *bin_file_new (const char *filename); bin_file_t *bin_file_new (const char *filename);
void bin_file_free (bin_file_t *bin_file); void bin_file_free (bin_file_t *bin_file);
const bin_symbol_t *bin_file_lookup_symbol (bin_file_t *bin_file, const bin_symbol_t *bin_file_lookup_symbol (bin_file_t *bin_file,
gulong address); gulong address);
gboolean bin_file_check_inode (bin_file_t *bin_file, gboolean bin_file_check_inode (bin_file_t *bin_file,
ino_t inode); ino_t inode);
const char *bin_symbol_get_name (bin_file_t *bin_file, const char *bin_symbol_get_name (bin_file_t *bin_file,
const bin_symbol_t *symbol); const bin_symbol_t *symbol);
gulong bin_symbol_get_address (bin_file_t *bin_file, gulong bin_symbol_get_address (bin_file_t *bin_file,
const bin_symbol_t *symbol); const bin_symbol_t *symbol);
void bin_symbol_get_address_range (bin_file_t *bin_file,
const bin_symbol_t *symbol,
gulong *begin,
gulong *end);
#endif #endif

12
src/libsysprof/elfparser.c
View File

@ -805,12 +805,22 @@ elf_parser_owns_symbol (ElfParser *parser,
} }
gulong gulong
elf_parser_get_sym_address (ElfParser *parser, elf_parser_get_sym_address (ElfParser *parser,
const ElfSym *sym) const ElfSym *sym)
{ {
return sym->address - parser->text_section->load_address; return sym->address - parser->text_section->load_address;
} }
void
elf_parser_get_sym_address_range (ElfParser *parser,
const ElfSym *sym,
gulong *begin,
gulong *end)
{
*begin = sym->address - parser->text_section->load_address;
*end = *begin + st_size (parser, sym->table, sym->offset);
}
/* /*
* Utility functions * Utility functions
*/ */

24
src/libsysprof/elfparser.h
View File

@ -45,14 +45,18 @@ gulong elf_parser_get_text_offset (ElfParser *parser);
* of the file would have been mapped, so a - (m - o) is the position * of the file would have been mapped, so a - (m - o) is the position
* in the file of a. * in the file of a.
*/ */
const ElfSym *elf_parser_lookup_symbol (ElfParser *parser, const ElfSym *elf_parser_lookup_symbol (ElfParser *parser,
gulong address); gulong address);
guint32 elf_parser_get_crc32 (ElfParser *parser); guint32 elf_parser_get_crc32 (ElfParser *parser);
const char *elf_parser_get_sym_name (ElfParser *parser, const char *elf_parser_get_sym_name (ElfParser *parser,
const ElfSym *sym); const ElfSym *sym);
gulong elf_parser_get_sym_address (ElfParser *parser, gulong elf_parser_get_sym_address (ElfParser *parser,
const ElfSym *sym); const ElfSym *sym);
gboolean elf_parser_owns_symbol (ElfParser *parser, gboolean elf_parser_owns_symbol (ElfParser *parser,
const ElfSym *sym); const ElfSym *sym);
char *elf_demangle (const char *name); char *elf_demangle (const char *name);
void elf_parser_get_sym_address_range (ElfParser *parser,
const ElfSym *sym,
gulong *begin,
gulong *end);