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elfparser: demangle legacy rust $GT$ and $LT$

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Related #2090
This commit is contained in:
Christian Hergert
2023-09-01 09:19:06 -07:00
parent a4b860a166
commit df4c6406c9
1 changed files with 26 additions and 1 deletions
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27
contrib/elfparser/demangle.cpp
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@ -27,6 +27,8 @@ sysprof_cplus_demangle (const char *name)
char *real_name; char *real_name;
char *ret; char *ret;
int status; int status;
guint i;
guint j;
if (name == NULL) if (name == NULL)
return NULL; return NULL;
@ -36,7 +38,30 @@ sysprof_cplus_demangle (const char *name)
if (real_name == NULL) if (real_name == NULL)
return NULL; return NULL;
ret = g_strdup (real_name); /* We need to return a string that is guaranteed it can be freed with
* g_free() rather than free(), so we might as well look for Legacy
* Rust mangling like '$LT$' and '$GT$' while we're at it.
*/
ret = (char *)g_malloc (strlen (real_name) + 1);
for (i = 0, j = 0; real_name[i]; i++)
{
if (real_name[i] == '$')
{
if (real_name[i+1] == 'L' && real_name[i+2] == 'T' && real_name[i+3] == '$')
ret[j++] = '<', i += 3;
else if (real_name[i+1] == 'G' && real_name[i+2] == 'T' && real_name[i+3] == '$')
ret[j++] = '>', i += 3;
}
else
{
ret[j++] = real_name[i];
}
}
ret[j] = 0;
free (real_name); free (real_name);
return ret; return ret;