diff options
Diffstat (limited to 'runtime/sym.c')
| -rw-r--r-- | runtime/sym.c | 25 |
1 files changed, 22 insertions, 3 deletions
diff --git a/runtime/sym.c b/runtime/sym.c index 3843a3a5..c10e89fd 100644 --- a/runtime/sym.c +++ b/runtime/sym.c @@ -20,6 +20,25 @@ * @{ */ +/* Lookup the kernel address for this symbol. Returns 0 if not found. */ +static unsigned long _stp_kallsyms_lookup_name(const char *name) +{ + struct stap_symbol *s = &stap_symbols[0]; + unsigned num = stap_num_symbols; + + /* Warning: Linear search. If this function ends up being used in */ + /* time-critical places, maybe we need to create a new symbol table */ + /* sorted by name. */ + + while (num--) { + if ((strcmp(name, s->symbol) == 0) && (strcmp(s->modname,"") == 0)) + return s->addr; + s++; + } + + return 0; +} + static const char * _stp_kallsyms_lookup ( unsigned long addr, unsigned long *symbolsize, @@ -80,7 +99,7 @@ String _stp_symbol_sprint (String str, unsigned long address) name = _stp_kallsyms_lookup(address, &size, &offset, &modname, namebuf); - _stp_sprintf (str, "0x%lx", address); + _stp_sprintf (str, "%p", (void *)address); if (name) { if (modname) @@ -119,13 +138,13 @@ const char *_stp_symbol_sprint_basic (char *str, size_t len, unsigned long addre if (len > KSYM_NAME_LEN) { name = _stp_kallsyms_lookup(address, &size, &offset, &modname, str); if (!name) - snprintf(str, len, "0x%lx", address); + snprintf(str, len, "%p", (void *)address); } else { name = _stp_kallsyms_lookup(address, &size, &offset, &modname, namebuf); if (name) strlcpy(str, namebuf, len); else - snprintf(str, len, "0x%lx", address); + snprintf(str, len, "%p", (void *)address); } return str; |