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freebsd-nq/contrib/libcxxrt/libelftc_dem_gnu3.c
David Chisnall 0f9eee39f0 Import a new libcxxrt. This fixes some potential crashing in the demangler. 
Approved by:	re (gjb)
MFC after:	1 week
2013-09-23 13:16:21 +00:00

3520 lines
77 KiB
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/*-
* Copyright (c) 2007, 2008 Hyogeol Lee <hyogeollee@gmail.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer
* in this position and unchanged.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/types.h>
#include <assert.h>
#include <ctype.h>
#include <errno.h>
#include <limits.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/**
* @file cpp_demangle.c
* @brief Decode IA-64 C++ ABI style implementation.
*
* IA-64 standard ABI(Itanium C++ ABI) references.
*
* http://www.codesourcery.com/cxx-abi/abi.html#mangling \n
* http://www.codesourcery.com/cxx-abi/abi-mangling.html
*/
/** @brief Dynamic vector data for string. */
struct vector_str {
/** Current size */
size_t size;
/** Total capacity */
size_t capacity;
/** String array */
char **container;
};
#define BUFFER_GROWFACTOR 1.618
#define VECTOR_DEF_CAPACITY 8
#define ELFTC_ISDIGIT(C) (isdigit((C) & 0xFF))
enum type_qualifier {
TYPE_PTR, TYPE_REF, TYPE_CMX, TYPE_IMG, TYPE_EXT, TYPE_RST, TYPE_VAT,
TYPE_CST
};
struct vector_type_qualifier {
size_t size, capacity;
enum type_qualifier *q_container;
struct vector_str ext_name;
};
enum read_cmd {
READ_FAIL, READ_NEST, READ_TMPL, READ_EXPR, READ_EXPL, READ_LOCAL,
READ_TYPE, READ_FUNC, READ_PTRMEM
};
struct vector_read_cmd {
size_t size, capacity;
enum read_cmd *r_container;
};
struct cpp_demangle_data {
struct vector_str output; /* output string vector */
struct vector_str output_tmp;
struct vector_str subst; /* substitution string vector */
struct vector_str tmpl;
struct vector_str class_type;
struct vector_read_cmd cmd;
bool paren; /* parenthesis opened */
bool pfirst; /* first element of parameter */
bool mem_rst; /* restrict member function */
bool mem_vat; /* volatile member function */
bool mem_cst; /* const member function */
int func_type;
const char *cur; /* current mangled name ptr */
const char *last_sname; /* last source name */
int push_head;
};
#define CPP_DEMANGLE_TRY_LIMIT 128
#define FLOAT_SPRINTF_TRY_LIMIT 5
#define FLOAT_QUADRUPLE_BYTES 16
#define FLOAT_EXTENED_BYTES 10
#define SIMPLE_HASH(x,y) (64 * x + y)
static size_t get_strlen_sum(const struct vector_str *v);
static bool vector_str_grow(struct vector_str *v);
static size_t
get_strlen_sum(const struct vector_str *v)
{
size_t i, len = 0;
if (v == NULL)
return (0);
assert(v->size > 0);
for (i = 0; i < v->size; ++i)
len += strlen(v->container[i]);
return (len);
}
/**
* @brief Deallocate resource in vector_str.
*/
static void
vector_str_dest(struct vector_str *v)
{
size_t i;
if (v == NULL)
return;
for (i = 0; i < v->size; ++i)
free(v->container[i]);
free(v->container);
}
/**
* @brief Find string in vector_str.
* @param v Destination vector.
* @param o String to find.
* @param l Length of the string.
* @return -1 at failed, 0 at not found, 1 at found.
*/
static int
vector_str_find(const struct vector_str *v, const char *o, size_t l)
{
size_t i;
if (v == NULL || o == NULL)
return (-1);
for (i = 0; i < v->size; ++i)
if (strncmp(v->container[i], o, l) == 0)
return (1);
return (0);
}
/**
* @brief Get new allocated flat string from vector.
*
* If l is not NULL, return length of the string.
* @param v Destination vector.
* @param l Length of the string.
* @return NULL at failed or NUL terminated new allocated string.
*/
static char *
vector_str_get_flat(const struct vector_str *v, size_t *l)
{
ssize_t elem_pos, elem_size, rtn_size;
size_t i;
char *rtn;
if (v == NULL || v->size == 0)
return (NULL);
if ((rtn_size = get_strlen_sum(v)) == 0)
return (NULL);
if ((rtn = malloc(sizeof(char) * (rtn_size + 1))) == NULL)
return (NULL);
elem_pos = 0;
for (i = 0; i < v->size; ++i) {
elem_size = strlen(v->container[i]);
memcpy(rtn + elem_pos, v->container[i], elem_size);
elem_pos += elem_size;
}
rtn[rtn_size] = '\0';
if (l != NULL)
*l = rtn_size;
return (rtn);
}
static bool
vector_str_grow(struct vector_str *v)
{
size_t i, tmp_cap;
char **tmp_ctn;
if (v == NULL)
return (false);
assert(v->capacity > 0);
tmp_cap = v->capacity * BUFFER_GROWFACTOR;
assert(tmp_cap > v->capacity);
if ((tmp_ctn = malloc(sizeof(char *) * tmp_cap)) == NULL)
return (false);
for (i = 0; i < v->size; ++i)
tmp_ctn[i] = v->container[i];
free(v->container);
v->container = tmp_ctn;
v->capacity = tmp_cap;
return (true);
}
/**
* @brief Initialize vector_str.
* @return false at failed, true at success.
*/
static bool
vector_str_init(struct vector_str *v)
{
if (v == NULL)
return (false);
v->size = 0;
v->capacity = VECTOR_DEF_CAPACITY;
assert(v->capacity > 0);
if ((v->container = malloc(sizeof(char *) * v->capacity)) == NULL)
return (false);
assert(v->container != NULL);
return (true);
}
/**
* @brief Remove last element in vector_str.
* @return false at failed, true at success.
*/
static bool
vector_str_pop(struct vector_str *v)
{
if (v == NULL)
return (false);
if (v->size == 0)
return (true);
--v->size;
free(v->container[v->size]);
v->container[v->size] = NULL;
return (true);
}
/**
* @brief Push back string to vector.
* @return false at failed, true at success.
*/
static bool
vector_str_push(struct vector_str *v, const char *str, size_t len)
{
if (v == NULL || str == NULL)
return (false);
if (v->size == v->capacity && vector_str_grow(v) == false)
return (false);
if ((v->container[v->size] = malloc(sizeof(char) * (len + 1))) == NULL)
return (false);
snprintf(v->container[v->size], len + 1, "%s", str);
++v->size;
return (true);
}
/**
* @brief Push front org vector to det vector.
* @return false at failed, true at success.
*/
static bool
vector_str_push_vector_head(struct vector_str *dst, struct vector_str *org)
{
size_t i, j, tmp_cap;
char **tmp_ctn;
if (dst == NULL || org == NULL)
return (false);
tmp_cap = (dst->size + org->size) * BUFFER_GROWFACTOR;
if ((tmp_ctn = malloc(sizeof(char *) * tmp_cap)) == NULL)
return (false);
for (i = 0; i < org->size; ++i)
if ((tmp_ctn[i] = strdup(org->container[i])) == NULL) {
for (j = 0; j < i; ++j)
free(tmp_ctn[j]);
free(tmp_ctn);
return (false);
}
for (i = 0; i < dst->size; ++i)
tmp_ctn[i + org->size] = dst->container[i];
free(dst->container);
dst->container = tmp_ctn;
dst->capacity = tmp_cap;
dst->size += org->size;
return (true);
}
/**
* @brief Get new allocated flat string from vector between begin and end.
*
* If r_len is not NULL, string length will be returned.
* @return NULL at failed or NUL terminated new allocated string.
*/
static char *
vector_str_substr(const struct vector_str *v, size_t begin, size_t end,
size_t *r_len)
{
size_t cur, i, len;
char *rtn;
if (v == NULL || begin > end)
return (NULL);
len = 0;
for (i = begin; i < end + 1; ++i)
len += strlen(v->container[i]);
if ((rtn = malloc(sizeof(char) * (len + 1))) == NULL)
return (NULL);
if (r_len != NULL)
*r_len = len;
cur = 0;
for (i = begin; i < end + 1; ++i) {
len = strlen(v->container[i]);
memcpy(rtn + cur, v->container[i], len);
cur += len;
}
rtn[cur] = '\0';
return (rtn);
}
static void cpp_demangle_data_dest(struct cpp_demangle_data *);
static int cpp_demangle_data_init(struct cpp_demangle_data *,
const char *);
static int cpp_demangle_get_subst(struct cpp_demangle_data *, size_t);
static int cpp_demangle_get_tmpl_param(struct cpp_demangle_data *, size_t);
static int cpp_demangle_push_fp(struct cpp_demangle_data *,
char *(*)(const char *, size_t));
static int cpp_demangle_push_str(struct cpp_demangle_data *, const char *,
size_t);
static int cpp_demangle_push_subst(struct cpp_demangle_data *,
const char *, size_t);
static int cpp_demangle_push_subst_v(struct cpp_demangle_data *,
struct vector_str *);
static int cpp_demangle_push_type_qualifier(struct cpp_demangle_data *,
struct vector_type_qualifier *, const char *);
static int cpp_demangle_read_array(struct cpp_demangle_data *);
static int cpp_demangle_read_encoding(struct cpp_demangle_data *);
static int cpp_demangle_read_expr_primary(struct cpp_demangle_data *);
static int cpp_demangle_read_expression(struct cpp_demangle_data *);
static int cpp_demangle_read_expression_binary(struct cpp_demangle_data *,
const char *, size_t);
static int cpp_demangle_read_expression_unary(struct cpp_demangle_data *,
const char *, size_t);
static int cpp_demangle_read_expression_trinary(struct cpp_demangle_data *,
const char *, size_t, const char *, size_t);
static int cpp_demangle_read_function(struct cpp_demangle_data *, int *,
struct vector_type_qualifier *);
static int cpp_demangle_local_source_name(struct cpp_demangle_data *ddata);
static int cpp_demangle_read_local_name(struct cpp_demangle_data *);
static int cpp_demangle_read_name(struct cpp_demangle_data *);
static int cpp_demangle_read_nested_name(struct cpp_demangle_data *);
static int cpp_demangle_read_number(struct cpp_demangle_data *, long *);
static int cpp_demangle_read_nv_offset(struct cpp_demangle_data *);
static int cpp_demangle_read_offset(struct cpp_demangle_data *);
static int cpp_demangle_read_offset_number(struct cpp_demangle_data *);
static int cpp_demangle_read_pointer_to_member(struct cpp_demangle_data *);
static int cpp_demangle_read_sname(struct cpp_demangle_data *);
static int cpp_demangle_read_subst(struct cpp_demangle_data *);
static int cpp_demangle_read_subst_std(struct cpp_demangle_data *);
static int cpp_demangle_read_subst_stdtmpl(struct cpp_demangle_data *,
const char *, size_t);
static int cpp_demangle_read_tmpl_arg(struct cpp_demangle_data *);
static int cpp_demangle_read_tmpl_args(struct cpp_demangle_data *);
static int cpp_demangle_read_tmpl_param(struct cpp_demangle_data *);
static int cpp_demangle_read_type(struct cpp_demangle_data *, int);
static int cpp_demangle_read_uqname(struct cpp_demangle_data *);
static int cpp_demangle_read_v_offset(struct cpp_demangle_data *);
static char *decode_fp_to_double(const char *, size_t);
static char *decode_fp_to_float(const char *, size_t);
static char *decode_fp_to_float128(const char *, size_t);
static char *decode_fp_to_float80(const char *, size_t);
static char *decode_fp_to_long_double(const char *, size_t);
static int hex_to_dec(char);
static void vector_read_cmd_dest(struct vector_read_cmd *);
static int vector_read_cmd_find(struct vector_read_cmd *, enum read_cmd);
static int vector_read_cmd_init(struct vector_read_cmd *);
static int vector_read_cmd_pop(struct vector_read_cmd *);
static int vector_read_cmd_push(struct vector_read_cmd *, enum read_cmd);
static void vector_type_qualifier_dest(struct vector_type_qualifier *);
static int vector_type_qualifier_init(struct vector_type_qualifier *);
static int vector_type_qualifier_push(struct vector_type_qualifier *,
enum type_qualifier);
/**
* @brief Decode the input string by IA-64 C++ ABI style.
*
* GNU GCC v3 use IA-64 standard ABI.
* @return New allocated demangled string or NULL if failed.
* @todo 1. Testing and more test case. 2. Code cleaning.
*/
char *
__cxa_demangle_gnu3(const char *org)
{
struct cpp_demangle_data ddata;
ssize_t org_len;
unsigned int limit;
char *rtn = NULL;
if (org == NULL)
return (NULL);
org_len = strlen(org);
if (org_len > 11 && !strncmp(org, "_GLOBAL__I_", 11)) {
if ((rtn = malloc(org_len + 19)) == NULL)
return (NULL);
snprintf(rtn, org_len + 19,
"global constructors keyed to %s", org + 11);
return (rtn);
}
// Try demangling as a type for short encodings
if ((org_len < 2) || (org[0] != '_' || org[1] != 'Z' )) {
if (!cpp_demangle_data_init(&ddata, org))
return (NULL);
if (!cpp_demangle_read_type(&ddata, 0))
goto clean;
rtn = vector_str_get_flat(&ddata.output, (size_t *) NULL);
goto clean;
}
if (!cpp_demangle_data_init(&ddata, org + 2))
return (NULL);
rtn = NULL;
if (!cpp_demangle_read_encoding(&ddata))
goto clean;
limit = 0;
while (*ddata.cur != '\0') {
/*
* Breaking at some gcc info at tail. e.g) @@GLIBCXX_3.4
*/
if (*ddata.cur == '@' && *(ddata.cur + 1) == '@')
break;
if (!cpp_demangle_read_type(&ddata, 1))
goto clean;
if (limit++ > CPP_DEMANGLE_TRY_LIMIT)
goto clean;
}
if (ddata.output.size == 0)
goto clean;
if (ddata.paren && !vector_str_push(&ddata.output, ")", 1))
goto clean;
if (ddata.mem_vat && !vector_str_push(&ddata.output, " volatile", 9))
goto clean;
if (ddata.mem_cst && !vector_str_push(&ddata.output, " const", 6))
goto clean;
if (ddata.mem_rst && !vector_str_push(&ddata.output, " restrict", 9))
goto clean;
rtn = vector_str_get_flat(&ddata.output, (size_t *) NULL);
clean:
cpp_demangle_data_dest(&ddata);
return (rtn);
}
static void
cpp_demangle_data_dest(struct cpp_demangle_data *d)
{
if (d == NULL)
return;
vector_read_cmd_dest(&d->cmd);
vector_str_dest(&d->class_type);
vector_str_dest(&d->tmpl);
vector_str_dest(&d->subst);
vector_str_dest(&d->output_tmp);
vector_str_dest(&d->output);
}
static int
cpp_demangle_data_init(struct cpp_demangle_data *d, const char *cur)
{
if (d == NULL || cur == NULL)
return (0);
if (!vector_str_init(&d->output))
return (0);
if (!vector_str_init(&d->output_tmp))
goto clean1;
if (!vector_str_init(&d->subst))
goto clean2;
if (!vector_str_init(&d->tmpl))
goto clean3;
if (!vector_str_init(&d->class_type))
goto clean4;
if (!vector_read_cmd_init(&d->cmd))
goto clean5;
assert(d->output.container != NULL);
assert(d->output_tmp.container != NULL);
assert(d->subst.container != NULL);
assert(d->tmpl.container != NULL);
assert(d->class_type.container != NULL);
d->paren = false;
d->pfirst = false;
d->mem_rst = false;
d->mem_vat = false;
d->mem_cst = false;
d->func_type = 0;
d->cur = cur;
d->last_sname = NULL;
d->push_head = 0;
return (1);
clean5:
vector_str_dest(&d->class_type);
clean4:
vector_str_dest(&d->tmpl);
clean3:
vector_str_dest(&d->subst);
clean2:
vector_str_dest(&d->output_tmp);
clean1:
vector_str_dest(&d->output);
return (0);
}
static int
cpp_demangle_push_fp(struct cpp_demangle_data *ddata,
char *(*decoder)(const char *, size_t))
{
size_t len;
int rtn;
const char *fp;
char *f;
if (ddata == NULL || decoder == NULL)
return (0);
fp = ddata->cur;
while (*ddata->cur != 'E')
++ddata->cur;
++ddata->cur;
if ((f = decoder(fp, ddata->cur - fp)) == NULL)
return (0);
rtn = 0;
if ((len = strlen(f)) > 0)
rtn = cpp_demangle_push_str(ddata, f, len);
free(f);
return (rtn);
}
static int
cpp_demangle_push_str(struct cpp_demangle_data *ddata, const char *str,
size_t len)
{
if (ddata == NULL || str == NULL || len == 0)
return (0);
if (ddata->push_head > 0)
return (vector_str_push(&ddata->output_tmp, str, len));
return (vector_str_push(&ddata->output, str, len));
}
static int
cpp_demangle_push_subst(struct cpp_demangle_data *ddata, const char *str,
size_t len)
{
if (ddata == NULL || str == NULL || len == 0)
return (0);
if (!vector_str_find(&ddata->subst, str, len))
return (vector_str_push(&ddata->subst, str, len));
return (1);
}
static int
cpp_demangle_push_subst_v(struct cpp_demangle_data *ddata, struct vector_str *v)
{
size_t str_len;
int rtn;
char *str;
if (ddata == NULL || v == NULL)
return (0);
if ((str = vector_str_get_flat(v, &str_len)) == NULL)
return (0);
rtn = cpp_demangle_push_subst(ddata, str, str_len);
free(str);
return (rtn);
}
static int
cpp_demangle_push_type_qualifier(struct cpp_demangle_data *ddata,
struct vector_type_qualifier *v, const char *type_str)
{
struct vector_str subst_v;
size_t idx, e_idx, e_len;
int rtn;
char *buf;
if (ddata == NULL || v == NULL)
return (0);
if ((idx = v->size) == 0)
return (1);
rtn = 0;
if (type_str != NULL) {
if (!vector_str_init(&subst_v))
return (0);
if (!vector_str_push(&subst_v, type_str, strlen(type_str)))
goto clean;
}
e_idx = 0;
while (idx > 0) {
switch (v->q_container[idx - 1]) {
case TYPE_PTR:
if (!cpp_demangle_push_str(ddata, "*", 1))
goto clean;
if (type_str != NULL) {
if (!vector_str_push(&subst_v, "*", 1))
goto clean;
if (!cpp_demangle_push_subst_v(ddata, &subst_v))
goto clean;
}
break;
case TYPE_REF:
if (!cpp_demangle_push_str(ddata, "&", 1))
goto clean;
if (type_str != NULL) {
if (!vector_str_push(&subst_v, "&", 1))
goto clean;
if (!cpp_demangle_push_subst_v(ddata, &subst_v))
goto clean;
}
break;
case TYPE_CMX:
if (!cpp_demangle_push_str(ddata, " complex", 8))
goto clean;
if (type_str != NULL) {
if (!vector_str_push(&subst_v, " complex", 8))
goto clean;
if (!cpp_demangle_push_subst_v(ddata, &subst_v))
goto clean;
}
break;
case TYPE_IMG:
if (!cpp_demangle_push_str(ddata, " imaginary", 10))
goto clean;
if (type_str != NULL) {
if (!vector_str_push(&subst_v, " imaginary", 10))
goto clean;
if (!cpp_demangle_push_subst_v(ddata, &subst_v))
goto clean;
}
break;
case TYPE_EXT:
if (e_idx > v->ext_name.size - 1)
goto clean;
if ((e_len = strlen(v->ext_name.container[e_idx])) == 0)
goto clean;
if ((buf = malloc(sizeof(char) * (e_len + 1))) == NULL)
goto clean;
memcpy(buf, " ", 1);
memcpy(buf + 1, v->ext_name.container[e_idx], e_len);
if (!cpp_demangle_push_str(ddata, buf, e_len + 1)) {
free(buf);
goto clean;
}
if (type_str != NULL) {
if (!vector_str_push(&subst_v, buf,
e_len + 1)) {
free(buf);
goto clean;
}
if (!cpp_demangle_push_subst_v(ddata, &subst_v)) {
free(buf);
goto clean;
}
}
free(buf);
++e_idx;
break;
case TYPE_RST:
if (!cpp_demangle_push_str(ddata, " restrict", 9))
goto clean;
if (type_str != NULL) {
if (!vector_str_push(&subst_v, " restrict", 9))
goto clean;
if (!cpp_demangle_push_subst_v(ddata, &subst_v))
goto clean;
}
break;
case TYPE_VAT:
if (!cpp_demangle_push_str(ddata, " volatile", 9))
goto clean;
if (type_str != NULL) {
if (!vector_str_push(&subst_v, " volatile", 9))
goto clean;
if (!cpp_demangle_push_subst_v(ddata, &subst_v))
goto clean;
}
break;
case TYPE_CST:
if (!cpp_demangle_push_str(ddata, " const", 6))
goto clean;
if (type_str != NULL) {
if (!vector_str_push(&subst_v, " const", 6))
goto clean;
if (!cpp_demangle_push_subst_v(ddata, &subst_v))
goto clean;
}
break;
};
--idx;
}
rtn = 1;
clean:
if (type_str != NULL)
vector_str_dest(&subst_v);
return (rtn);
}
static int
cpp_demangle_get_subst(struct cpp_demangle_data *ddata, size_t idx)
{
size_t len;
if (ddata == NULL || ddata->subst.size <= idx)
return (0);
if ((len = strlen(ddata->subst.container[idx])) == 0)
return (0);
if (!cpp_demangle_push_str(ddata, ddata->subst.container[idx], len))
return (0);
/* skip '_' */
++ddata->cur;
return (1);
}
static int
cpp_demangle_get_tmpl_param(struct cpp_demangle_data *ddata, size_t idx)
{
size_t len;
if (ddata == NULL || ddata->tmpl.size <= idx)
return (0);
if ((len = strlen(ddata->tmpl.container[idx])) == 0)
return (0);
if (!cpp_demangle_push_str(ddata, ddata->tmpl.container[idx], len))
return (0);
++ddata->cur;
return (1);
}
static int
cpp_demangle_read_array(struct cpp_demangle_data *ddata)
{
size_t i, num_len, exp_len, p_idx, idx;
const char *num;
char *exp;
if (ddata == NULL || *(++ddata->cur) == '\0')
return (0);
if (*ddata->cur == '_') {
if (*(++ddata->cur) == '\0')
return (0);
if (!cpp_demangle_read_type(ddata, 0))
return (0);
if (!cpp_demangle_push_str(ddata, "[]", 2))
return (0);
} else {
if (ELFTC_ISDIGIT(*ddata->cur) != 0) {
num = ddata->cur;
while (ELFTC_ISDIGIT(*ddata->cur) != 0)
++ddata->cur;
if (*ddata->cur != '_')
return (0);
num_len = ddata->cur - num;
assert(num_len > 0);
if (*(++ddata->cur) == '\0')
return (0);
if (!cpp_demangle_read_type(ddata, 0))
return (0);
if (!cpp_demangle_push_str(ddata, "[", 1))
return (0);
if (!cpp_demangle_push_str(ddata, num, num_len))
return (0);
if (!cpp_demangle_push_str(ddata, "]", 1))
return (0);
} else {
p_idx = ddata->output.size;
if (!cpp_demangle_read_expression(ddata))
return (0);
if ((exp = vector_str_substr(&ddata->output, p_idx,
ddata->output.size - 1, &exp_len)) == NULL)
return (0);
idx = ddata->output.size;
for (i = p_idx; i < idx; ++i)
if (!vector_str_pop(&ddata->output)) {
free(exp);
return (0);
}
if (*ddata->cur != '_') {
free(exp);
return (0);
}
++ddata->cur;
if (*ddata->cur == '\0') {
free(exp);
return (0);
}
if (!cpp_demangle_read_type(ddata, 0)) {
free(exp);
return (0);
}
if (!cpp_demangle_push_str(ddata, "[", 1)) {
free(exp);
return (0);
}
if (!cpp_demangle_push_str(ddata, exp, exp_len)) {
free(exp);
return (0);
}
if (!cpp_demangle_push_str(ddata, "]", 1)) {
free(exp);
return (0);
}
free(exp);
}
}
return (1);
}
static int
cpp_demangle_read_expr_primary(struct cpp_demangle_data *ddata)
{
const char *num;
if (ddata == NULL || *(++ddata->cur) == '\0')
return (0);
if (*ddata->cur == '_' && *(ddata->cur + 1) == 'Z') {
ddata->cur += 2;
if (*ddata->cur == '\0')
return (0);
if (!cpp_demangle_read_encoding(ddata))
return (0);
++ddata->cur;
return (1);
}
switch (*ddata->cur) {
case 'b':
switch (*(++ddata->cur)) {
case '0':
return (cpp_demangle_push_str(ddata, "false", 5));
case '1':
return (cpp_demangle_push_str(ddata, "true", 4));
default:
return (0);
};
case 'd':
++ddata->cur;
return (cpp_demangle_push_fp(ddata, decode_fp_to_double));
case 'e':
++ddata->cur;
if (sizeof(long double) == 10)
return (cpp_demangle_push_fp(ddata,
decode_fp_to_double));
return (cpp_demangle_push_fp(ddata, decode_fp_to_float80));
case 'f':
++ddata->cur;
return (cpp_demangle_push_fp(ddata, decode_fp_to_float));
case 'g':
++ddata->cur;
if (sizeof(long double) == 16)
return (cpp_demangle_push_fp(ddata,
decode_fp_to_double));
return (cpp_demangle_push_fp(ddata, decode_fp_to_float128));
case 'i':
case 'j':
case 'l':
case 'm':
case 'n':
case 's':
case 't':
case 'x':
case 'y':
if (*(++ddata->cur) == 'n') {
if (!cpp_demangle_push_str(ddata, "-", 1))
return (0);
++ddata->cur;
}
num = ddata->cur;
while (*ddata->cur != 'E') {
if (!ELFTC_ISDIGIT(*ddata->cur))
return (0);
++ddata->cur;
}
++ddata->cur;
return (cpp_demangle_push_str(ddata, num, ddata->cur - num));
default:
return (0);
};
}
static int
cpp_demangle_read_expression(struct cpp_demangle_data *ddata)
{
if (ddata == NULL || *ddata->cur == '\0')
return (0);
switch (SIMPLE_HASH(*ddata->cur, *(ddata->cur + 1))) {
case SIMPLE_HASH('s', 't'):
ddata->cur += 2;
return (cpp_demangle_read_type(ddata, 0));
case SIMPLE_HASH('s', 'r'):
ddata->cur += 2;
if (!cpp_demangle_read_type(ddata, 0))
return (0);
if (!cpp_demangle_read_uqname(ddata))
return (0);
if (*ddata->cur == 'I')
return (cpp_demangle_read_tmpl_args(ddata));
return (1);
case SIMPLE_HASH('a', 'a'):
/* operator && */
ddata->cur += 2;
return (cpp_demangle_read_expression_binary(ddata, "&&", 2));
case SIMPLE_HASH('a', 'd'):
/* operator & (unary) */
ddata->cur += 2;
return (cpp_demangle_read_expression_unary(ddata, "&", 1));
case SIMPLE_HASH('a', 'n'):
/* operator & */
ddata->cur += 2;
return (cpp_demangle_read_expression_binary(ddata, "&", 1));
case SIMPLE_HASH('a', 'N'):
/* operator &= */
ddata->cur += 2;
return (cpp_demangle_read_expression_binary(ddata, "&=", 2));
case SIMPLE_HASH('a', 'S'):
/* operator = */
ddata->cur += 2;
return (cpp_demangle_read_expression_binary(ddata, "=", 1));
case SIMPLE_HASH('c', 'l'):
/* operator () */
ddata->cur += 2;
return (cpp_demangle_read_expression_binary(ddata, "()", 2));
case SIMPLE_HASH('c', 'm'):
/* operator , */
ddata->cur += 2;
return (cpp_demangle_read_expression_binary(ddata, ",", 1));
case SIMPLE_HASH('c', 'o'):
/* operator ~ */
ddata->cur += 2;
return (cpp_demangle_read_expression_binary(ddata, "~", 1));
case SIMPLE_HASH('c', 'v'):
/* operator (cast) */
ddata->cur += 2;
return (cpp_demangle_read_expression_binary(ddata, "(cast)", 6));
case SIMPLE_HASH('d', 'a'):
/* operator delete [] */
ddata->cur += 2;
return (cpp_demangle_read_expression_unary(ddata, "delete []", 9));
case SIMPLE_HASH('d', 'e'):
/* operator * (unary) */
ddata->cur += 2;
return (cpp_demangle_read_expression_unary(ddata, "*", 1));
case SIMPLE_HASH('d', 'l'):
/* operator delete */
ddata->cur += 2;
return (cpp_demangle_read_expression_unary(ddata, "delete", 6));
case SIMPLE_HASH('d', 'v'):
/* operator / */
ddata->cur += 2;
return (cpp_demangle_read_expression_binary(ddata, "/", 1));
case SIMPLE_HASH('d', 'V'):
/* operator /= */
ddata->cur += 2;
return (cpp_demangle_read_expression_binary(ddata, "/=", 2));
case SIMPLE_HASH('e', 'o'):
/* operator ^ */
ddata->cur += 2;
return (cpp_demangle_read_expression_binary(ddata, "^", 1));
case SIMPLE_HASH('e', 'O'):
/* operator ^= */
ddata->cur += 2;
return (cpp_demangle_read_expression_binary(ddata, "^=", 2));
case SIMPLE_HASH('e', 'q'):
/* operator == */
ddata->cur += 2;
return (cpp_demangle_read_expression_binary(ddata, "==", 2));
case SIMPLE_HASH('g', 'e'):
/* operator >= */
ddata->cur += 2;
return (cpp_demangle_read_expression_binary(ddata, ">=", 2));
case SIMPLE_HASH('g', 't'):
/* operator > */
ddata->cur += 2;
return (cpp_demangle_read_expression_binary(ddata, ">", 1));
case SIMPLE_HASH('i', 'x'):
/* operator [] */
ddata->cur += 2;
return (cpp_demangle_read_expression_binary(ddata, "[]", 2));
case SIMPLE_HASH('l', 'e'):
/* operator <= */
ddata->cur += 2;
return (cpp_demangle_read_expression_binary(ddata, "<=", 2));
case SIMPLE_HASH('l', 's'):
/* operator << */
ddata->cur += 2;
return (cpp_demangle_read_expression_binary(ddata, "<<", 2));
case SIMPLE_HASH('l', 'S'):
/* operator <<= */
ddata->cur += 2;
return (cpp_demangle_read_expression_binary(ddata, "<<=", 3));
case SIMPLE_HASH('l', 't'):
/* operator < */
ddata->cur += 2;
return (cpp_demangle_read_expression_binary(ddata, "<", 1));
case SIMPLE_HASH('m', 'i'):
/* operator - */
ddata->cur += 2;
return (cpp_demangle_read_expression_binary(ddata, "-", 1));
case SIMPLE_HASH('m', 'I'):
/* operator -= */
ddata->cur += 2;
return (cpp_demangle_read_expression_binary(ddata, "-=", 2));
case SIMPLE_HASH('m', 'l'):
/* operator * */
ddata->cur += 2;
return (cpp_demangle_read_expression_binary(ddata, "*", 1));
case SIMPLE_HASH('m', 'L'):
/* operator *= */
ddata->cur += 2;
return (cpp_demangle_read_expression_binary(ddata, "*=", 2));
case SIMPLE_HASH('m', 'm'):
/* operator -- */
ddata->cur += 2;
return (cpp_demangle_read_expression_binary(ddata, "--", 2));
case SIMPLE_HASH('n', 'a'):
/* operator new[] */
ddata->cur += 2;
return (cpp_demangle_read_expression_unary(ddata, "new []", 6));
case SIMPLE_HASH('n', 'e'):
/* operator != */
ddata->cur += 2;
return (cpp_demangle_read_expression_binary(ddata, "!=", 2));
case SIMPLE_HASH('n', 'g'):
/* operator - (unary) */
ddata->cur += 2;
return (cpp_demangle_read_expression_unary(ddata, "-", 1));
case SIMPLE_HASH('n', 't'):
/* operator ! */
ddata->cur += 2;
return (cpp_demangle_read_expression_binary(ddata, "!", 1));
case SIMPLE_HASH('n', 'w'):
/* operator new */
ddata->cur += 2;
return (cpp_demangle_read_expression_unary(ddata, "new", 3));
case SIMPLE_HASH('o', 'o'):
/* operator || */
ddata->cur += 2;
return (cpp_demangle_read_expression_binary(ddata, "||", 2));
case SIMPLE_HASH('o', 'r'):
/* operator | */
ddata->cur += 2;
return (cpp_demangle_read_expression_binary(ddata, "|", 1));
case SIMPLE_HASH('o', 'R'):
/* operator |= */
ddata->cur += 2;
return (cpp_demangle_read_expression_binary(ddata, "|=", 2));
case SIMPLE_HASH('p', 'l'):
/* operator + */
ddata->cur += 2;
return (cpp_demangle_read_expression_binary(ddata, "+", 1));
case SIMPLE_HASH('p', 'L'):
/* operator += */
ddata->cur += 2;
return (cpp_demangle_read_expression_binary(ddata, "+=", 2));
case SIMPLE_HASH('p', 'm'):
/* operator ->* */
ddata->cur += 2;
return (cpp_demangle_read_expression_binary(ddata, "->*", 3));
case SIMPLE_HASH('p', 'p'):
/* operator ++ */
ddata->cur += 2;
return (cpp_demangle_read_expression_binary(ddata, "++", 2));
case SIMPLE_HASH('p', 's'):
/* operator + (unary) */
ddata->cur += 2;
return (cpp_demangle_read_expression_unary(ddata, "+", 1));
case SIMPLE_HASH('p', 't'):
/* operator -> */
ddata->cur += 2;
return (cpp_demangle_read_expression_binary(ddata, "->", 2));
case SIMPLE_HASH('q', 'u'):
/* operator ? */
ddata->cur += 2;
return (cpp_demangle_read_expression_trinary(ddata, "?", 1,
":", 1));
case SIMPLE_HASH('r', 'm'):
/* operator % */
ddata->cur += 2;
return (cpp_demangle_read_expression_binary(ddata, "%", 1));
case SIMPLE_HASH('r', 'M'):
/* operator %= */
ddata->cur += 2;
return (cpp_demangle_read_expression_binary(ddata, "%=", 2));
case SIMPLE_HASH('r', 's'):
/* operator >> */
ddata->cur += 2;
return (cpp_demangle_read_expression_binary(ddata, ">>", 2));
case SIMPLE_HASH('r', 'S'):
/* operator >>= */
ddata->cur += 2;
return (cpp_demangle_read_expression_binary(ddata, ">>=", 3));
case SIMPLE_HASH('r', 'z'):
/* operator sizeof */
ddata->cur += 2;
return (cpp_demangle_read_expression_unary(ddata, "sizeof", 6));
case SIMPLE_HASH('s', 'v'):
/* operator sizeof */
ddata->cur += 2;
return (cpp_demangle_read_expression_unary(ddata, "sizeof", 6));
};
switch (*ddata->cur) {
case 'L':
return (cpp_demangle_read_expr_primary(ddata));
case 'T':
return (cpp_demangle_read_tmpl_param(ddata));
};
return (0);
}
static int
cpp_demangle_read_expression_binary(struct cpp_demangle_data *ddata,
const char *name, size_t len)
{
if (ddata == NULL || name == NULL || len == 0)
return (0);
if (!cpp_demangle_read_expression(ddata))
return (0);
if (!cpp_demangle_push_str(ddata, name, len))
return (0);
return (cpp_demangle_read_expression(ddata));
}
static int
cpp_demangle_read_expression_unary(struct cpp_demangle_data *ddata,
const char *name, size_t len)
{
if (ddata == NULL || name == NULL || len == 0)
return (0);
if (!cpp_demangle_read_expression(ddata))
return (0);
return (cpp_demangle_push_str(ddata, name, len));
}
static int
cpp_demangle_read_expression_trinary(struct cpp_demangle_data *ddata,
const char *name1, size_t len1, const char *name2, size_t len2)
{
if (ddata == NULL || name1 == NULL || len1 == 0 || name2 == NULL ||
len2 == 0)
return (0);
if (!cpp_demangle_read_expression(ddata))
return (0);
if (!cpp_demangle_push_str(ddata, name1, len1))
return (0);
if (!cpp_demangle_read_expression(ddata))
return (0);
if (!cpp_demangle_push_str(ddata, name2, len2))
return (0);
return (cpp_demangle_read_expression(ddata));
}
static int
cpp_demangle_read_function(struct cpp_demangle_data *ddata, int *ext_c,
struct vector_type_qualifier *v)
{
size_t class_type_size, class_type_len, limit;
const char *class_type;
if (ddata == NULL || *ddata->cur != 'F' || v == NULL)
return (0);
++ddata->cur;
if (*ddata->cur == 'Y') {
if (ext_c != NULL)
*ext_c = 1;
++ddata->cur;
}
if (!cpp_demangle_read_type(ddata, 0))
return (0);
if (*ddata->cur != 'E') {
if (!cpp_demangle_push_str(ddata, "(", 1))
return (0);
if (vector_read_cmd_find(&ddata->cmd, READ_PTRMEM)) {
if ((class_type_size = ddata->class_type.size) == 0)
return (0);
class_type =
ddata->class_type.container[class_type_size - 1];
if (class_type == NULL)
return (0);
if ((class_type_len = strlen(class_type)) == 0)
return (0);
if (!cpp_demangle_push_str(ddata, class_type,
class_type_len))
return (0);
if (!cpp_demangle_push_str(ddata, "::*", 3))
return (0);
++ddata->func_type;
} else {
if (!cpp_demangle_push_type_qualifier(ddata, v,
(const char *) NULL))
return (0);
vector_type_qualifier_dest(v);
if (!vector_type_qualifier_init(v))
return (0);
}
if (!cpp_demangle_push_str(ddata, ")(", 2))
return (0);
limit = 0;
for (;;) {
if (!cpp_demangle_read_type(ddata, 0))
return (0);
if (*ddata->cur == 'E')
break;
if (limit++ > CPP_DEMANGLE_TRY_LIMIT)
return (0);
}
if (vector_read_cmd_find(&ddata->cmd, READ_PTRMEM) == 1) {
if (!cpp_demangle_push_type_qualifier(ddata, v,
(const char *) NULL))
return (0);
vector_type_qualifier_dest(v);
if (!vector_type_qualifier_init(v))
return (0);
}
if (!cpp_demangle_push_str(ddata, ")", 1))
return (0);
}
++ddata->cur;
return (1);
}
/* read encoding, encoding are function name, data name, special-name */
static int
cpp_demangle_read_encoding(struct cpp_demangle_data *ddata)
{
if (ddata == NULL || *ddata->cur == '\0')
return (0);
/* special name */
switch (SIMPLE_HASH(*ddata->cur, *(ddata->cur + 1))) {
case SIMPLE_HASH('G', 'V'):
/* sentry object for 1 time init */
if (!cpp_demangle_push_str(ddata, "guard variable for ", 20))
return (0);
ddata->cur += 2;
break;
case SIMPLE_HASH('T', 'c'):
/* virtual function covariant override thunk */
if (!cpp_demangle_push_str(ddata,
"virtual function covariant override ", 36))
return (0);
ddata->cur += 2;
if (*ddata->cur == '\0')
return (0);
if (!cpp_demangle_read_offset(ddata))
return (0);
if (!cpp_demangle_read_offset(ddata))
return (0);
return (cpp_demangle_read_encoding(ddata));
case SIMPLE_HASH('T', 'D'):
/* typeinfo common proxy */
break;
case SIMPLE_HASH('T', 'h'):
/* virtual function non-virtual override thunk */
if (cpp_demangle_push_str(ddata,
"virtual function non-virtual override ", 38) == 0)
return (0);
ddata->cur += 2;
if (*ddata->cur == '\0')
return (0);
if (!cpp_demangle_read_nv_offset(ddata))
return (0);
return (cpp_demangle_read_encoding(ddata));
case SIMPLE_HASH('T', 'I'):
/* typeinfo structure */
/* FALLTHROUGH */
case SIMPLE_HASH('T', 'S'):
/* RTTI name (NTBS) */
if (!cpp_demangle_push_str(ddata, "typeinfo for ", 14))
return (0);
ddata->cur += 2;
if (*ddata->cur == '\0')
return (0);
return (cpp_demangle_read_type(ddata, 1));
case SIMPLE_HASH('T', 'T'):
/* VTT table */
if (!cpp_demangle_push_str(ddata, "VTT for ", 8))
return (0);
ddata->cur += 2;
return (cpp_demangle_read_type(ddata, 1));
case SIMPLE_HASH('T', 'v'):
/* virtual function virtual override thunk */
if (!cpp_demangle_push_str(ddata,
"virtual function virtual override ", 34))
return (0);
ddata->cur += 2;
if (*ddata->cur == '\0')
return (0);
if (!cpp_demangle_read_v_offset(ddata))
return (0);
return (cpp_demangle_read_encoding(ddata));
case SIMPLE_HASH('T', 'V'):
/* virtual table */
if (!cpp_demangle_push_str(ddata, "vtable for ", 12))
return (0);
ddata->cur += 2;
if (*ddata->cur == '\0')
return (0);
return (cpp_demangle_read_type(ddata, 1));
};
return (cpp_demangle_read_name(ddata));
}
static int
cpp_demangle_read_local_name(struct cpp_demangle_data *ddata)
{
size_t limit;
if (ddata == NULL)
return (0);
if (*(++ddata->cur) == '\0')
return (0);
if (!cpp_demangle_read_encoding(ddata))
return (0);
limit = 0;
for (;;) {
if (!cpp_demangle_read_type(ddata, 1))
return (0);
if (*ddata->cur == 'E')
break;
if (limit++ > CPP_DEMANGLE_TRY_LIMIT)
return (0);
}
if (*(++ddata->cur) == '\0')
return (0);
if (ddata->paren == true) {
if (!cpp_demangle_push_str(ddata, ")", 1))
return (0);
ddata->paren = false;
}
if (*ddata->cur == 's')
++ddata->cur;
else {
if (!cpp_demangle_push_str(ddata, "::", 2))
return (0);
if (!cpp_demangle_read_name(ddata))
return (0);
}
if (*ddata->cur == '_') {
++ddata->cur;
while (ELFTC_ISDIGIT(*ddata->cur) != 0)
++ddata->cur;
}
return (1);
}
static int
cpp_demangle_read_name(struct cpp_demangle_data *ddata)
{
struct vector_str *output, v;
size_t p_idx, subst_str_len;
int rtn;
char *subst_str;
if (ddata == NULL || *ddata->cur == '\0')
return (0);
output = ddata->push_head > 0 ? &ddata->output_tmp : &ddata->output;
subst_str = NULL;
switch (*ddata->cur) {
case 'S':
return (cpp_demangle_read_subst(ddata));
case 'N':
return (cpp_demangle_read_nested_name(ddata));
case 'Z':
return (cpp_demangle_read_local_name(ddata));
};
if (!vector_str_init(&v))
return (0);
p_idx = output->size;
rtn = 0;
if (!cpp_demangle_read_uqname(ddata))
goto clean;
if ((subst_str = vector_str_substr(output, p_idx, output->size - 1,
&subst_str_len)) == NULL)
goto clean;
if (subst_str_len > 8 && strstr(subst_str, "operator") != NULL) {
rtn = 1;
goto clean;
}
if (!vector_str_push(&v, subst_str, subst_str_len))
goto clean;
if (!cpp_demangle_push_subst_v(ddata, &v))
goto clean;
if (*ddata->cur == 'I') {
p_idx = output->size;
if (!cpp_demangle_read_tmpl_args(ddata))
goto clean;
free(subst_str);
if ((subst_str = vector_str_substr(output, p_idx,
output->size - 1, &subst_str_len)) == NULL)
goto clean;
if (!vector_str_push(&v, subst_str, subst_str_len))
goto clean;
if (!cpp_demangle_push_subst_v(ddata, &v))
goto clean;
}
rtn = 1;
clean:
free(subst_str);
vector_str_dest(&v);
return (rtn);
}
static int
cpp_demangle_read_nested_name(struct cpp_demangle_data *ddata)
{
struct vector_str *output, v;
size_t limit, p_idx, subst_str_len;
int rtn;
char *subst_str;
if (ddata == NULL || *ddata->cur != 'N')
return (0);
if (*(++ddata->cur) == '\0')
return (0);
while (*ddata->cur == 'r' || *ddata->cur == 'V' ||
*ddata->cur == 'K') {
switch (*ddata->cur) {
case 'r':
ddata->mem_rst = true;
break;
case 'V':
ddata->mem_vat = true;
break;
case 'K':
ddata->mem_cst = true;
break;
};
++ddata->cur;
}
output = ddata->push_head > 0 ? &ddata->output_tmp : &ddata->output;
if (!vector_str_init(&v))
return (0);
rtn = 0;
limit = 0;
for (;;) {
p_idx = output->size;
switch (*ddata->cur) {
case 'I':
if (!cpp_demangle_read_tmpl_args(ddata))
goto clean;
break;
case 'S':
if (!cpp_demangle_read_subst(ddata))
goto clean;
break;
case 'T':
if (!cpp_demangle_read_tmpl_param(ddata))
goto clean;
break;
default:
if (!cpp_demangle_read_uqname(ddata))
goto clean;
};
if ((subst_str = vector_str_substr(output, p_idx,
output->size - 1, &subst_str_len)) == NULL)
goto clean;
if (!vector_str_push(&v, subst_str, subst_str_len)) {
free(subst_str);
goto clean;
}
free(subst_str);
if (!cpp_demangle_push_subst_v(ddata, &v))
goto clean;
if (*ddata->cur == 'E')
break;
else if (*ddata->cur != 'I' &&
*ddata->cur != 'C' && *ddata->cur != 'D') {
if (!cpp_demangle_push_str(ddata, "::", 2))
goto clean;
if (!vector_str_push(&v, "::", 2))
goto clean;
}
if (limit++ > CPP_DEMANGLE_TRY_LIMIT)
goto clean;
}
++ddata->cur;
rtn = 1;
clean:
vector_str_dest(&v);
return (rtn);
}
/*
* read number
* number ::= [n] <decimal>
*/
static int
cpp_demangle_read_number(struct cpp_demangle_data *ddata, long *rtn)
{
long len, negative_factor;
if (ddata == NULL || rtn == NULL)
return (0);
negative_factor = 1;
if (*ddata->cur == 'n') {
negative_factor = -1;
++ddata->cur;
}
if (ELFTC_ISDIGIT(*ddata->cur) == 0)
return (0);
errno = 0;
if ((len = strtol(ddata->cur, (char **) NULL, 10)) == 0 &&
errno != 0)
return (0);
while (ELFTC_ISDIGIT(*ddata->cur) != 0)
++ddata->cur;
assert(len >= 0);
assert(negative_factor == 1 || negative_factor == -1);
*rtn = len * negative_factor;
return (1);
}
static int
cpp_demangle_read_nv_offset(struct cpp_demangle_data *ddata)
{
if (ddata == NULL)
return (0);
if (!cpp_demangle_push_str(ddata, "offset : ", 9))
return (0);
return (cpp_demangle_read_offset_number(ddata));
}
/* read offset, offset are nv-offset, v-offset */
static int
cpp_demangle_read_offset(struct cpp_demangle_data *ddata)
{
if (ddata == NULL)
return (0);
if (*ddata->cur == 'h') {
++ddata->cur;
return (cpp_demangle_read_nv_offset(ddata));
} else if (*ddata->cur == 'v') {
++ddata->cur;
return (cpp_demangle_read_v_offset(ddata));
}
return (0);
}
static int
cpp_demangle_read_offset_number(struct cpp_demangle_data *ddata)
{
bool negative;
const char *start;
if (ddata == NULL || *ddata->cur == '\0')
return (0);
/* offset could be negative */
if (*ddata->cur == 'n') {
negative = true;
start = ddata->cur + 1;
} else {
negative = false;
start = ddata->cur;
}
while (*ddata->cur != '_')
++ddata->cur;
if (negative && !cpp_demangle_push_str(ddata, "-", 1))
return (0);
assert(start != NULL);
if (!cpp_demangle_push_str(ddata, start, ddata->cur - start))
return (0);
if (!cpp_demangle_push_str(ddata, " ", 1))
return (0);
++ddata->cur;
return (1);
}
static int
cpp_demangle_read_pointer_to_member(struct cpp_demangle_data *ddata)
{
size_t class_type_len, i, idx, p_idx;
int p_func_type, rtn;
char *class_type;
if (ddata == NULL || *ddata->cur != 'M' || *(++ddata->cur) == '\0')
return (0);
p_idx = ddata->output.size;
if (!cpp_demangle_read_type(ddata, 0))
return (0);
if ((class_type = vector_str_substr(&ddata->output, p_idx,
ddata->output.size - 1, &class_type_len)) == NULL)
return (0);
rtn = 0;
idx = ddata->output.size;
for (i = p_idx; i < idx; ++i)
if (!vector_str_pop(&ddata->output))
goto clean1;
if (!vector_read_cmd_push(&ddata->cmd, READ_PTRMEM))
goto clean1;
if (!vector_str_push(&ddata->class_type, class_type, class_type_len))
goto clean2;
p_func_type = ddata->func_type;
if (!cpp_demangle_read_type(ddata, 0))
goto clean3;
if (p_func_type == ddata->func_type) {
if (!cpp_demangle_push_str(ddata, " ", 1))
goto clean3;
if (!cpp_demangle_push_str(ddata, class_type, class_type_len))
goto clean3;
if (!cpp_demangle_push_str(ddata, "::*", 3))
goto clean3;
}
rtn = 1;
clean3:
if (!vector_str_pop(&ddata->class_type))
rtn = 0;
clean2:
if (!vector_read_cmd_pop(&ddata->cmd))
rtn = 0;
clean1:
free(class_type);
return (rtn);
}
/* read source-name, source-name is <len> <ID> */
static int
cpp_demangle_read_sname(struct cpp_demangle_data *ddata)
{
long len;
int err;
if (ddata == NULL || cpp_demangle_read_number(ddata, &len) == 0 ||
len <= 0)
return (0);
if (len == 12 && (memcmp("_GLOBAL__N_1", ddata->cur, 12) == 0))
err = cpp_demangle_push_str(ddata, "(anonymous namespace)", 21);
else
err = cpp_demangle_push_str(ddata, ddata->cur, len);
if (err == 0)
return (0);
assert(ddata->output.size > 0);
if (vector_read_cmd_find(&ddata->cmd, READ_TMPL) == 0)
ddata->last_sname =
ddata->output.container[ddata->output.size - 1];
ddata->cur += len;
return (1);
}
static int
cpp_demangle_read_subst(struct cpp_demangle_data *ddata)
{
long nth;
if (ddata == NULL || *ddata->cur == '\0')
return (0);
/* abbreviations of the form Sx */
switch (SIMPLE_HASH(*ddata->cur, *(ddata->cur + 1))) {
case SIMPLE_HASH('S', 'a'):
/* std::allocator */
if (cpp_demangle_push_str(ddata, "std::allocator", 14) == 0)
return (0);
ddata->cur += 2;
if (*ddata->cur == 'I')
return (cpp_demangle_read_subst_stdtmpl(ddata,
"std::allocator", 14));
return (1);
case SIMPLE_HASH('S', 'b'):
/* std::basic_string */
if (!cpp_demangle_push_str(ddata, "std::basic_string", 17))
return (0);
ddata->cur += 2;
if (*ddata->cur == 'I')
return (cpp_demangle_read_subst_stdtmpl(ddata,
"std::basic_string", 17));
return (1);
case SIMPLE_HASH('S', 'd'):
/* std::basic_iostream<char, std::char_traits<char> > */
if (!cpp_demangle_push_str(ddata, "std::iostream", 19))
return (0);
ddata->last_sname = "iostream";
ddata->cur += 2;
if (*ddata->cur == 'I')
return (cpp_demangle_read_subst_stdtmpl(ddata,
"std::iostream", 19));
return (1);
case SIMPLE_HASH('S', 'i'):
/* std::basic_istream<char, std::char_traits<char> > */
if (!cpp_demangle_push_str(ddata, "std::istream", 18))
return (0);
ddata->last_sname = "istream";
ddata->cur += 2;
if (*ddata->cur == 'I')
return (cpp_demangle_read_subst_stdtmpl(ddata,
"std::istream", 18));
return (1);
case SIMPLE_HASH('S', 'o'):
/* std::basic_ostream<char, std::char_traits<char> > */
if (!cpp_demangle_push_str(ddata, "std::ostream", 18))
return (0);
ddata->last_sname = "istream";
ddata->cur += 2;
if (*ddata->cur == 'I')
return (cpp_demangle_read_subst_stdtmpl(ddata,
"std::ostream", 18));
return (1);
case SIMPLE_HASH('S', 's'):
/*
* std::basic_string<char, std::char_traits<char>,
* std::allocator<char> >
*
* a.k.a std::string
*/
if (!cpp_demangle_push_str(ddata, "std::string", 11))
return (0);
ddata->last_sname = "string";
ddata->cur += 2;
if (*ddata->cur == 'I')
return (cpp_demangle_read_subst_stdtmpl(ddata,
"std::string", 11));
return (1);
case SIMPLE_HASH('S', 't'):
/* std:: */
return (cpp_demangle_read_subst_std(ddata));
};
if (*(++ddata->cur) == '\0')
return (0);
/* substitution */
if (*ddata->cur == '_')
return (cpp_demangle_get_subst(ddata, 0));
else {
errno = 0;
/* substitution number is base 36 */
if ((nth = strtol(ddata->cur, (char **) NULL, 36)) == 0 &&
errno != 0)
return (0);
/* first was '_', so increase one */
++nth;
while (*ddata->cur != '_')
++ddata->cur;
assert(nth > 0);
return (cpp_demangle_get_subst(ddata, nth));
}
/* NOTREACHED */
return (0);
}
static int
cpp_demangle_read_subst_std(struct cpp_demangle_data *ddata)
{
struct vector_str *output, v;
size_t p_idx, subst_str_len;
int rtn;
char *subst_str;
if (ddata == NULL)
return (0);
if (!vector_str_init(&v))
return (0);
subst_str = NULL;
rtn = 0;
if (!cpp_demangle_push_str(ddata, "std::", 5))
goto clean;
if (!vector_str_push(&v, "std::", 5))
goto clean;
ddata->cur += 2;
output = ddata->push_head > 0 ? &ddata->output_tmp : &ddata->output;
p_idx = output->size;
if (!cpp_demangle_read_uqname(ddata))
goto clean;
if ((subst_str = vector_str_substr(output, p_idx, output->size - 1,
&subst_str_len)) == NULL)
goto clean;
if (!vector_str_push(&v, subst_str, subst_str_len))
goto clean;
if (!cpp_demangle_push_subst_v(ddata, &v))
goto clean;
if (*ddata->cur == 'I') {
p_idx = output->size;
if (!cpp_demangle_read_tmpl_args(ddata))
goto clean;
free(subst_str);
if ((subst_str = vector_str_substr(output, p_idx,
output->size - 1, &subst_str_len)) == NULL)
goto clean;
if (!vector_str_push(&v, subst_str, subst_str_len))
goto clean;
if (!cpp_demangle_push_subst_v(ddata, &v))
goto clean;
}
rtn = 1;
clean:
free(subst_str);
vector_str_dest(&v);
return (rtn);
}
static int
cpp_demangle_read_subst_stdtmpl(struct cpp_demangle_data *ddata,
const char *str, size_t len)
{
struct vector_str *output;
size_t p_idx, substr_len;
int rtn;
char *subst_str, *substr;
if (ddata == NULL || str == NULL || len == 0)
return (0);
output = ddata->push_head > 0 ? &ddata->output_tmp : &ddata->output;
p_idx = output->size;
substr = NULL;
subst_str = NULL;
if (!cpp_demangle_read_tmpl_args(ddata))
return (0);
if ((substr = vector_str_substr(output, p_idx, output->size - 1,
&substr_len)) == NULL)
return (0);
rtn = 0;
if ((subst_str = malloc(sizeof(char) * (substr_len + len + 1))) ==
NULL)
goto clean;
memcpy(subst_str, str, len);
memcpy(subst_str + len, substr, substr_len);
subst_str[substr_len + len] = '\0';
if (!cpp_demangle_push_subst(ddata, subst_str, substr_len + len))
goto clean;
rtn = 1;
clean:
free(subst_str);
free(substr);
return (rtn);
}
static int
cpp_demangle_read_tmpl_arg(struct cpp_demangle_data *ddata)
{
if (ddata == NULL || *ddata->cur == '\0')
return (0);
switch (*ddata->cur) {
case 'L':
return (cpp_demangle_read_expr_primary(ddata));
case 'X':
return (cpp_demangle_read_expression(ddata));
};
return (cpp_demangle_read_type(ddata, 0));
}
static int
cpp_demangle_read_tmpl_args(struct cpp_demangle_data *ddata)
{
struct vector_str *v;
size_t arg_len, idx, limit, size;
char *arg;
if (ddata == NULL || *ddata->cur == '\0')
return (0);
++ddata->cur;
if (!vector_read_cmd_push(&ddata->cmd, READ_TMPL))
return (0);
if (!cpp_demangle_push_str(ddata, "<", 1))
return (0);
limit = 0;
v = ddata->push_head > 0 ? &ddata->output_tmp : &ddata->output;
for (;;) {
idx = v->size;
if (!cpp_demangle_read_tmpl_arg(ddata))
return (0);
if ((arg = vector_str_substr(v, idx, v->size - 1, &arg_len)) ==
NULL)
return (0);
if (!vector_str_find(&ddata->tmpl, arg, arg_len) &&
!vector_str_push(&ddata->tmpl, arg, arg_len)) {
free(arg);
return (0);
}
free(arg);
if (*ddata->cur == 'E') {
++ddata->cur;
size = v->size;
assert(size > 0);
if (!strncmp(v->container[size - 1], ">", 1)) {
if (!cpp_demangle_push_str(ddata, " >", 2))
return (0);
} else if (!cpp_demangle_push_str(ddata, ">", 1))
return (0);
break;
} else if (*ddata->cur != 'I' &&
!cpp_demangle_push_str(ddata, ", ", 2))
return (0);
if (limit++ > CPP_DEMANGLE_TRY_LIMIT)
return (0);
}
return (vector_read_cmd_pop(&ddata->cmd));
}
/*
* Read template parameter that forms in 'T[number]_'.
* This function much like to read_subst but only for types.
*/
static int
cpp_demangle_read_tmpl_param(struct cpp_demangle_data *ddata)
{
long nth;
if (ddata == NULL || *ddata->cur != 'T')
return (0);
++ddata->cur;
if (*ddata->cur == '_')
return (cpp_demangle_get_tmpl_param(ddata, 0));
else {
errno = 0;
if ((nth = strtol(ddata->cur, (char **) NULL, 36)) == 0 &&
errno != 0)
return (0);
/* T_ is first */
++nth;
while (*ddata->cur != '_')
++ddata->cur;
assert(nth > 0);
return (cpp_demangle_get_tmpl_param(ddata, nth));
}
/* NOTREACHED */
return (0);
}
static int
cpp_demangle_read_type(struct cpp_demangle_data *ddata, int delimit)
{
struct vector_type_qualifier v;
struct vector_str *output;
size_t p_idx, type_str_len;
int extern_c, is_builtin;
long len;
char *type_str;
if (ddata == NULL)
return (0);
output = &ddata->output;
if (ddata->output.size > 0 && !strncmp(ddata->output.container[ddata->output.size - 1], ">", 1)) {
ddata->push_head++;
output = &ddata->output_tmp;
} else if (delimit == 1) {
if (ddata->paren == false) {
if (!cpp_demangle_push_str(ddata, "(", 1))
return (0);
if (ddata->output.size < 2)
return (0);
ddata->paren = true;
ddata->pfirst = true;
/* Need pop function name */
if (ddata->subst.size == 1 &&
!vector_str_pop(&ddata->subst))
return (0);
}
if (ddata->pfirst)
ddata->pfirst = false;
else if (*ddata->cur != 'I' &&
!cpp_demangle_push_str(ddata, ", ", 2))
return (0);
}
assert(output != NULL);
/*
* [r, V, K] [P, R, C, G, U] builtin, function, class-enum, array
* pointer-to-member, template-param, template-template-param, subst
*/
if (!vector_type_qualifier_init(&v))
return (0);
extern_c = 0;
is_builtin = 1;
p_idx = output->size;
type_str = NULL;
again:
/* builtin type */
switch (*ddata->cur) {
case 'a':
/* signed char */
if (!cpp_demangle_push_str(ddata, "signed char", 11))
goto clean;
++ddata->cur;
goto rtn;
case 'A':
/* array type */
if (!cpp_demangle_read_array(ddata))
goto clean;
is_builtin = 0;
goto rtn;
case 'b':
/* bool */
if (!cpp_demangle_push_str(ddata, "bool", 4))
goto clean;
++ddata->cur;
goto rtn;
case 'C':
/* complex pair */
if (!vector_type_qualifier_push(&v, TYPE_CMX))
goto clean;
++ddata->cur;
goto again;
case 'c':
/* char */
if (!cpp_demangle_push_str(ddata, "char", 4))
goto clean;
++ddata->cur;
goto rtn;
case 'd':
/* double */
if (!cpp_demangle_push_str(ddata, "double", 6))
goto clean;
++ddata->cur;
goto rtn;
case 'e':
/* long double */
if (!cpp_demangle_push_str(ddata, "long double", 11))
goto clean;
++ddata->cur;
goto rtn;
case 'f':
/* float */
if (!cpp_demangle_push_str(ddata, "float", 5))
goto clean;
++ddata->cur;
goto rtn;
case 'F':
/* function */
if (!cpp_demangle_read_function(ddata, &extern_c, &v))
goto clean;
is_builtin = 0;
goto rtn;
case 'g':
/* __float128 */
if (!cpp_demangle_push_str(ddata, "__float128", 10))
goto clean;
++ddata->cur;
goto rtn;
case 'G':
/* imaginary */
if (!vector_type_qualifier_push(&v, TYPE_IMG))
goto clean;
++ddata->cur;
goto again;
case 'h':
/* unsigned char */
if (!cpp_demangle_push_str(ddata, "unsigned char", 13))
goto clean;
++ddata->cur;
goto rtn;
case 'i':
/* int */
if (!cpp_demangle_push_str(ddata, "int", 3))
goto clean;
++ddata->cur;
goto rtn;
case 'j':
/* unsigned int */
if (!cpp_demangle_push_str(ddata, "unsigned int", 12))
goto clean;
++ddata->cur;
goto rtn;
case 'K':
/* const */
if (!vector_type_qualifier_push(&v, TYPE_CST))
goto clean;
++ddata->cur;
goto again;
case 'l':
/* long */
if (!cpp_demangle_push_str(ddata, "long", 4))
goto clean;
++ddata->cur;
goto rtn;
case 'm':
/* unsigned long */
if (!cpp_demangle_push_str(ddata, "unsigned long", 13))
goto clean;
++ddata->cur;
goto rtn;
case 'M':
/* pointer to member */
if (!cpp_demangle_read_pointer_to_member(ddata))
goto clean;
is_builtin = 0;
goto rtn;
case 'n':
/* __int128 */
if (!cpp_demangle_push_str(ddata, "__int128", 8))
goto clean;
++ddata->cur;
goto rtn;
case 'o':
/* unsigned __int128 */
if (!cpp_demangle_push_str(ddata, "unsigned _;int128", 17))
goto clean;
++ddata->cur;
goto rtn;
case 'P':
/* pointer */
if (!vector_type_qualifier_push(&v, TYPE_PTR))
goto clean;
++ddata->cur;
goto again;
case 'r':
/* restrict */
if (!vector_type_qualifier_push(&v, TYPE_RST))
goto clean;
++ddata->cur;
goto again;
case 'R':
/* reference */
if (!vector_type_qualifier_push(&v, TYPE_REF))
goto clean;
++ddata->cur;
goto again;
case 's':
/* short, local string */
if (!cpp_demangle_push_str(ddata, "short", 5))
goto clean;
++ddata->cur;
goto rtn;
case 'S':
/* substitution */
if (!cpp_demangle_read_subst(ddata))
goto clean;
is_builtin = 0;
goto rtn;
case 't':
/* unsigned short */
if (!cpp_demangle_push_str(ddata, "unsigned short", 14))
goto clean;
++ddata->cur;
goto rtn;
case 'T':
/* template parameter */
if (!cpp_demangle_read_tmpl_param(ddata))
goto clean;
is_builtin = 0;
goto rtn;
case 'u':
/* vendor extended builtin */
++ddata->cur;
if (!cpp_demangle_read_sname(ddata))
goto clean;
is_builtin = 0;
goto rtn;
case 'U':
/* vendor extended type qualifier */
if (!cpp_demangle_read_number(ddata, &len))
goto clean;
if (len <= 0)
goto clean;
if (!vector_str_push(&v.ext_name, ddata->cur, len))
return (0);
ddata->cur += len;
goto again;
case 'v':
/* void */
if (!cpp_demangle_push_str(ddata, "void", 4))
goto clean;
++ddata->cur;
goto rtn;
case 'V':
/* volatile */
if (!vector_type_qualifier_push(&v, TYPE_VAT))
goto clean;
++ddata->cur;
goto again;
case 'w':
/* wchar_t */
if (!cpp_demangle_push_str(ddata, "wchar_t", 6))
goto clean;
++ddata->cur;
goto rtn;
case 'x':
/* long long */
if (!cpp_demangle_push_str(ddata, "long long", 9))
goto clean;
++ddata->cur;
goto rtn;
case 'y':
/* unsigned long long */
if (!cpp_demangle_push_str(ddata, "unsigned long long", 18))
goto clean;
++ddata->cur;
goto rtn;
case 'z':
/* ellipsis */
if (!cpp_demangle_push_str(ddata, "ellipsis", 8))
goto clean;
++ddata->cur;
goto rtn;
};
if (!cpp_demangle_read_name(ddata))
goto clean;
is_builtin = 0;
rtn:
if ((type_str = vector_str_substr(output, p_idx, output->size - 1,
&type_str_len)) == NULL)
goto clean;
if (is_builtin == 0) {
if (!vector_str_find(&ddata->subst, type_str, type_str_len) &&
!vector_str_push(&ddata->subst, type_str, type_str_len))
goto clean;
}
if (!cpp_demangle_push_type_qualifier(ddata, &v, type_str))
goto clean;
free(type_str);
vector_type_qualifier_dest(&v);
if (ddata->push_head > 0) {
if (*ddata->cur == 'I' && cpp_demangle_read_tmpl_args(ddata)
== 0)
return (0);
if (--ddata->push_head > 0)
return (1);
if (!vector_str_push(&ddata->output_tmp, " ", 1))
return (0);
if (!vector_str_push_vector_head(&ddata->output,
&ddata->output_tmp))
return (0);
vector_str_dest(&ddata->output_tmp);
if (!vector_str_init(&ddata->output_tmp))
return (0);
if (!cpp_demangle_push_str(ddata, "(", 1))
return (0);
ddata->paren = true;
ddata->pfirst = true;
}
return (1);
clean:
free(type_str);
vector_type_qualifier_dest(&v);
return (0);
}
/*
* read unqualified-name, unqualified name are operator-name, ctor-dtor-name,
* source-name
*/
static int
cpp_demangle_read_uqname(struct cpp_demangle_data *ddata)
{
size_t len;
if (ddata == NULL || *ddata->cur == '\0')
return (0);
/* operator name */
switch (SIMPLE_HASH(*ddata->cur, *(ddata->cur + 1))) {
case SIMPLE_HASH('a', 'a'):
/* operator && */
if (!cpp_demangle_push_str(ddata, "operator&&", 10))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('a', 'd'):
/* operator & (unary) */
if (!cpp_demangle_push_str(ddata, "operator&", 9))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('a', 'n'):
/* operator & */
if (!cpp_demangle_push_str(ddata, "operator&", 9))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('a', 'N'):
/* operator &= */
if (!cpp_demangle_push_str(ddata, "operator&=", 10))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('a', 'S'):
/* operator = */
if (!cpp_demangle_push_str(ddata, "operator=", 9))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('c', 'l'):
/* operator () */
if (!cpp_demangle_push_str(ddata, "operator()", 10))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('c', 'm'):
/* operator , */
if (!cpp_demangle_push_str(ddata, "operator,", 9))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('c', 'o'):
/* operator ~ */
if (!cpp_demangle_push_str(ddata, "operator~", 9))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('c', 'v'):
/* operator (cast) */
if (!cpp_demangle_push_str(ddata, "operator(cast)", 14))
return (0);
ddata->cur += 2;
return (cpp_demangle_read_type(ddata, 1));
case SIMPLE_HASH('d', 'a'):
/* operator delete [] */
if (!cpp_demangle_push_str(ddata, "operator delete []", 18))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('d', 'e'):
/* operator * (unary) */
if (!cpp_demangle_push_str(ddata, "operator*", 9))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('d', 'l'):
/* operator delete */
if (!cpp_demangle_push_str(ddata, "operator delete", 15))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('d', 'v'):
/* operator / */
if (!cpp_demangle_push_str(ddata, "operator/", 9))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('d', 'V'):
/* operator /= */
if (!cpp_demangle_push_str(ddata, "operator/=", 10))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('e', 'o'):
/* operator ^ */
if (!cpp_demangle_push_str(ddata, "operator^", 9))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('e', 'O'):
/* operator ^= */
if (!cpp_demangle_push_str(ddata, "operator^=", 10))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('e', 'q'):
/* operator == */
if (!cpp_demangle_push_str(ddata, "operator==", 10))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('g', 'e'):
/* operator >= */
if (!cpp_demangle_push_str(ddata, "operator>=", 10))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('g', 't'):
/* operator > */
if (!cpp_demangle_push_str(ddata, "operator>", 9))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('i', 'x'):
/* operator [] */
if (!cpp_demangle_push_str(ddata, "operator[]", 10))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('l', 'e'):
/* operator <= */
if (!cpp_demangle_push_str(ddata, "operator<=", 10))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('l', 's'):
/* operator << */
if (!cpp_demangle_push_str(ddata, "operator<<", 10))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('l', 'S'):
/* operator <<= */
if (!cpp_demangle_push_str(ddata, "operator<<=", 11))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('l', 't'):
/* operator < */
if (!cpp_demangle_push_str(ddata, "operator<", 9))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('m', 'i'):
/* operator - */
if (!cpp_demangle_push_str(ddata, "operator-", 9))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('m', 'I'):
/* operator -= */
if (!cpp_demangle_push_str(ddata, "operator-=", 10))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('m', 'l'):
/* operator * */
if (!cpp_demangle_push_str(ddata, "operator*", 9))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('m', 'L'):
/* operator *= */
if (!cpp_demangle_push_str(ddata, "operator*=", 10))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('m', 'm'):
/* operator -- */
if (!cpp_demangle_push_str(ddata, "operator--", 10))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('n', 'a'):
/* operator new[] */
if (!cpp_demangle_push_str(ddata, "operator new []", 15))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('n', 'e'):
/* operator != */
if (!cpp_demangle_push_str(ddata, "operator!=", 10))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('n', 'g'):
/* operator - (unary) */
if (!cpp_demangle_push_str(ddata, "operator-", 9))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('n', 't'):
/* operator ! */
if (!cpp_demangle_push_str(ddata, "operator!", 9))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('n', 'w'):
/* operator new */
if (!cpp_demangle_push_str(ddata, "operator new", 12))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('o', 'o'):
/* operator || */
if (!cpp_demangle_push_str(ddata, "operator||", 10))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('o', 'r'):
/* operator | */
if (!cpp_demangle_push_str(ddata, "operator|", 9))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('o', 'R'):
/* operator |= */
if (!cpp_demangle_push_str(ddata, "operator|=", 10))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('p', 'l'):
/* operator + */
if (!cpp_demangle_push_str(ddata, "operator+", 9))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('p', 'L'):
/* operator += */
if (!cpp_demangle_push_str(ddata, "operator+=", 10))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('p', 'm'):
/* operator ->* */
if (!cpp_demangle_push_str(ddata, "operator->*", 11))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('p', 'p'):
/* operator ++ */
if (!cpp_demangle_push_str(ddata, "operator++", 10))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('p', 's'):
/* operator + (unary) */
if (!cpp_demangle_push_str(ddata, "operator+", 9))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('p', 't'):
/* operator -> */
if (!cpp_demangle_push_str(ddata, "operator->", 10))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('q', 'u'):
/* operator ? */
if (!cpp_demangle_push_str(ddata, "operator?", 9))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('r', 'm'):
/* operator % */
if (!cpp_demangle_push_str(ddata, "operator%", 9))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('r', 'M'):
/* operator %= */
if (!cpp_demangle_push_str(ddata, "operator%=", 10))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('r', 's'):
/* operator >> */
if (!cpp_demangle_push_str(ddata, "operator>>", 10))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('r', 'S'):
/* operator >>= */
if (!cpp_demangle_push_str(ddata, "operator>>=", 11))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('r', 'z'):
/* operator sizeof */
if (!cpp_demangle_push_str(ddata, "operator sizeof ", 16))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('s', 'r'):
/* scope resolution operator */
if (!cpp_demangle_push_str(ddata, "scope resolution operator ",
26))
return (0);
ddata->cur += 2;
return (1);
case SIMPLE_HASH('s', 'v'):
/* operator sizeof */
if (!cpp_demangle_push_str(ddata, "operator sizeof ", 16))
return (0);
ddata->cur += 2;
return (1);
};
/* vendor extened operator */
if (*ddata->cur == 'v' && ELFTC_ISDIGIT(*(ddata->cur + 1))) {
if (!cpp_demangle_push_str(ddata, "vendor extened operator ",
24))
return (0);
if (!cpp_demangle_push_str(ddata, ddata->cur + 1, 1))
return (0);
ddata->cur += 2;
return (cpp_demangle_read_sname(ddata));
}
/* ctor-dtor-name */
switch (SIMPLE_HASH(*ddata->cur, *(ddata->cur + 1))) {
case SIMPLE_HASH('C', '1'):
/* FALLTHROUGH */
case SIMPLE_HASH('C', '2'):
/* FALLTHROUGH */
case SIMPLE_HASH('C', '3'):
if (ddata->last_sname == NULL)
return (0);
if ((len = strlen(ddata->last_sname)) == 0)
return (0);
if (!cpp_demangle_push_str(ddata, "::", 2))
return (0);
if (!cpp_demangle_push_str(ddata, ddata->last_sname, len))
return (0);
ddata->cur +=2;
return (1);
case SIMPLE_HASH('D', '0'):
/* FALLTHROUGH */
case SIMPLE_HASH('D', '1'):
/* FALLTHROUGH */
case SIMPLE_HASH('D', '2'):
if (ddata->last_sname == NULL)
return (0);
if ((len = strlen(ddata->last_sname)) == 0)
return (0);
if (!cpp_demangle_push_str(ddata, "::~", 3))
return (0);
if (!cpp_demangle_push_str(ddata, ddata->last_sname, len))
return (0);
ddata->cur +=2;
return (1);
};
/* source name */
if (ELFTC_ISDIGIT(*ddata->cur) != 0)
return (cpp_demangle_read_sname(ddata));
/* local source name */
if (*ddata->cur == 'L')
return (cpp_demangle_local_source_name(ddata));
return (1);
}
/*
* Read local source name.
*
* References:
* http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31775
* http://gcc.gnu.org/viewcvs?view=rev&revision=124467
*/
static int
cpp_demangle_local_source_name(struct cpp_demangle_data *ddata)
{
/* L */
if (ddata == NULL || *ddata->cur != 'L')
return (0);
++ddata->cur;
/* source name */
if (!cpp_demangle_read_sname(ddata))
return (0);
/* discriminator */
if (*ddata->cur == '_') {
++ddata->cur;
while (ELFTC_ISDIGIT(*ddata->cur) != 0)
++ddata->cur;
}
return (1);
}
static int
cpp_demangle_read_v_offset(struct cpp_demangle_data *ddata)
{
if (ddata == NULL)
return (0);
if (!cpp_demangle_push_str(ddata, "offset : ", 9))
return (0);
if (!cpp_demangle_read_offset_number(ddata))
return (0);
if (!cpp_demangle_push_str(ddata, "virtual offset : ", 17))
return (0);
return (!cpp_demangle_read_offset_number(ddata));
}
/*
* Decode floating point representation to string
* Return new allocated string or NULL
*
* Todo
* Replace these functions to macro.
*/
static char *
decode_fp_to_double(const char *p, size_t len)
{
double f;
size_t rtn_len, limit, i;
int byte;
char *rtn;
if (p == NULL || len == 0 || len % 2 != 0 || len / 2 > sizeof(double))
return (NULL);
memset(&f, 0, sizeof(double));
for (i = 0; i < len / 2; ++i) {
byte = hex_to_dec(p[len - i * 2 - 1]) +
hex_to_dec(p[len - i * 2 - 2]) * 16;
if (byte < 0 || byte > 255)
return (NULL);
#if ELFTC_BYTE_ORDER == ELFTC_BYTE_ORDER_LITTLE_ENDIAN
((unsigned char *)&f)[i] = (unsigned char)(byte);
#else /* ELFTC_BYTE_ORDER != ELFTC_BYTE_ORDER_LITTLE_ENDIAN */
((unsigned char *)&f)[sizeof(double) - i - 1] =
(unsigned char)(byte);
#endif /* ELFTC_BYTE_ORDER == ELFTC_BYTE_ORDER_LITTLE_ENDIAN */
}
rtn_len = 64;
limit = 0;
again:
if ((rtn = malloc(sizeof(char) * rtn_len)) == NULL)
return (NULL);
if (snprintf(rtn, rtn_len, "%fld", f) >= (int)rtn_len) {
free(rtn);
if (limit++ > FLOAT_SPRINTF_TRY_LIMIT)
return (NULL);
rtn_len *= BUFFER_GROWFACTOR;
goto again;
}
return rtn;
}
static char *
decode_fp_to_float(const char *p, size_t len)
{
size_t i, rtn_len, limit;
float f;
int byte;
char *rtn;
if (p == NULL || len == 0 || len % 2 != 0 || len / 2 > sizeof(float))
return (NULL);
memset(&f, 0, sizeof(float));
for (i = 0; i < len / 2; ++i) {
byte = hex_to_dec(p[len - i * 2 - 1]) +
hex_to_dec(p[len - i * 2 - 2]) * 16;
if (byte < 0 || byte > 255)
return (NULL);
#if ELFTC_BYTE_ORDER == ELFTC_BYTE_ORDER_LITTLE_ENDIAN
((unsigned char *)&f)[i] = (unsigned char)(byte);
#else /* ELFTC_BYTE_ORDER != ELFTC_BYTE_ORDER_LITTLE_ENDIAN */
((unsigned char *)&f)[sizeof(float) - i - 1] =
(unsigned char)(byte);
#endif /* ELFTC_BYTE_ORDER == ELFTC_BYTE_ORDER_LITTLE_ENDIAN */
}
rtn_len = 64;
limit = 0;
again:
if ((rtn = malloc(sizeof(char) * rtn_len)) == NULL)
return (NULL);
if (snprintf(rtn, rtn_len, "%ff", f) >= (int)rtn_len) {
free(rtn);
if (limit++ > FLOAT_SPRINTF_TRY_LIMIT)
return (NULL);
rtn_len *= BUFFER_GROWFACTOR;
goto again;
}
return rtn;
}
static char *
decode_fp_to_float128(const char *p, size_t len)
{
long double f;
size_t rtn_len, limit, i;
int byte;
unsigned char buf[FLOAT_QUADRUPLE_BYTES];
char *rtn;
switch(sizeof(long double)) {
case FLOAT_QUADRUPLE_BYTES:
return (decode_fp_to_long_double(p, len));
case FLOAT_EXTENED_BYTES:
if (p == NULL || len == 0 || len % 2 != 0 ||
len / 2 > FLOAT_QUADRUPLE_BYTES)
return (NULL);
memset(buf, 0, FLOAT_QUADRUPLE_BYTES);
for (i = 0; i < len / 2; ++i) {
byte = hex_to_dec(p[len - i * 2 - 1]) +
hex_to_dec(p[len - i * 2 - 2]) * 16;
if (byte < 0 || byte > 255)
return (NULL);
#if ELFTC_BYTE_ORDER == ELFTC_BYTE_ORDER_LITTLE_ENDIAN
buf[i] = (unsigned char)(byte);
#else /* ELFTC_BYTE_ORDER != ELFTC_BYTE_ORDER_LITTLE_ENDIAN */
buf[FLOAT_QUADRUPLE_BYTES - i -1] =
(unsigned char)(byte);
#endif /* ELFTC_BYTE_ORDER == ELFTC_BYTE_ORDER_LITTLE_ENDIAN */
}
memset(&f, 0, FLOAT_EXTENED_BYTES);
#if ELFTC_BYTE_ORDER == ELFTC_BYTE_ORDER_LITTLE_ENDIAN
memcpy(&f, buf, FLOAT_EXTENED_BYTES);
#else /* ELFTC_BYTE_ORDER != ELFTC_BYTE_ORDER_LITTLE_ENDIAN */
memcpy(&f, buf + 6, FLOAT_EXTENED_BYTES);
#endif /* ELFTC_BYTE_ORDER == ELFTC_BYTE_ORDER_LITTLE_ENDIAN */
rtn_len = 256;
limit = 0;
again:
if ((rtn = malloc(sizeof(char) * rtn_len)) == NULL)
return (NULL);
if (snprintf(rtn, rtn_len, "%Lfd", f) >= (int)rtn_len) {
free(rtn);
if (limit++ > FLOAT_SPRINTF_TRY_LIMIT)
return (NULL);
rtn_len *= BUFFER_GROWFACTOR;
goto again;
}
return (rtn);
default:
return (NULL);
}
}
static char *
decode_fp_to_float80(const char *p, size_t len)
{
long double f;
size_t rtn_len, limit, i;
int byte;
unsigned char buf[FLOAT_EXTENED_BYTES];
char *rtn;
switch(sizeof(long double)) {
case FLOAT_QUADRUPLE_BYTES:
if (p == NULL || len == 0 || len % 2 != 0 ||
len / 2 > FLOAT_EXTENED_BYTES)
return (NULL);
memset(buf, 0, FLOAT_EXTENED_BYTES);
for (i = 0; i < len / 2; ++i) {
byte = hex_to_dec(p[len - i * 2 - 1]) +
hex_to_dec(p[len - i * 2 - 2]) * 16;
if (byte < 0 || byte > 255)
return (NULL);
#if ELFTC_BYTE_ORDER == ELFTC_BYTE_ORDER_LITTLE_ENDIAN
buf[i] = (unsigned char)(byte);
#else /* ELFTC_BYTE_ORDER != ELFTC_BYTE_ORDER_LITTLE_ENDIAN */
buf[FLOAT_EXTENED_BYTES - i -1] =
(unsigned char)(byte);
#endif /* ELFTC_BYTE_ORDER == ELFTC_BYTE_ORDER_LITTLE_ENDIAN */
}
memset(&f, 0, FLOAT_QUADRUPLE_BYTES);
#if ELFTC_BYTE_ORDER == ELFTC_BYTE_ORDER_LITTLE_ENDIAN
memcpy(&f, buf, FLOAT_EXTENED_BYTES);
#else /* ELFTC_BYTE_ORDER != ELFTC_BYTE_ORDER_LITTLE_ENDIAN */
memcpy((unsigned char *)(&f) + 6, buf, FLOAT_EXTENED_BYTES);
#endif /* ELFTC_BYTE_ORDER == ELFTC_BYTE_ORDER_LITTLE_ENDIAN */
rtn_len = 256;
limit = 0;
again:
if ((rtn = malloc(sizeof(char) * rtn_len)) == NULL)
return (NULL);
if (snprintf(rtn, rtn_len, "%Lfd", f) >= (int)rtn_len) {
free(rtn);
if (limit++ > FLOAT_SPRINTF_TRY_LIMIT)
return (NULL);
rtn_len *= BUFFER_GROWFACTOR;
goto again;
}
return (rtn);
case FLOAT_EXTENED_BYTES:
return (decode_fp_to_long_double(p, len));
default:
return (NULL);
}
}
static char *
decode_fp_to_long_double(const char *p, size_t len)
{
long double f;
size_t rtn_len, limit, i;
int byte;
char *rtn;
if (p == NULL || len == 0 || len % 2 != 0 ||
len / 2 > sizeof(long double))
return (NULL);
memset(&f, 0, sizeof(long double));
for (i = 0; i < len / 2; ++i) {
byte = hex_to_dec(p[len - i * 2 - 1]) +
hex_to_dec(p[len - i * 2 - 2]) * 16;
if (byte < 0 || byte > 255)
return (NULL);
#if ELFTC_BYTE_ORDER == ELFTC_BYTE_ORDER_LITTLE_ENDIAN
((unsigned char *)&f)[i] = (unsigned char)(byte);
#else /* ELFTC_BYTE_ORDER != ELFTC_BYTE_ORDER_LITTLE_ENDIAN */
((unsigned char *)&f)[sizeof(long double) - i - 1] =
(unsigned char)(byte);
#endif /* ELFTC_BYTE_ORDER == ELFTC_BYTE_ORDER_LITTLE_ENDIAN */
}
rtn_len = 256;
limit = 0;
again:
if ((rtn = malloc(sizeof(char) * rtn_len)) == NULL)
return (NULL);
if (snprintf(rtn, rtn_len, "%Lfd", f) >= (int)rtn_len) {
free(rtn);
if (limit++ > FLOAT_SPRINTF_TRY_LIMIT)
return (NULL);
rtn_len *= BUFFER_GROWFACTOR;
goto again;
}
return (rtn);
}
/* Simple hex to integer function used by decode_to_* function. */
static int
hex_to_dec(char c)
{
switch (c) {
case '0':
return (0);
case '1':
return (1);
case '2':
return (2);
case '3':
return (3);
case '4':
return (4);
case '5':
return (5);
case '6':
return (6);
case '7':
return (7);
case '8':
return (8);
case '9':
return (9);
case 'a':
return (10);
case 'b':
return (11);
case 'c':
return (12);
case 'd':
return (13);
case 'e':
return (14);
case 'f':
return (15);
default:
return (-1);
};
}
static void
vector_read_cmd_dest(struct vector_read_cmd *v)
{
if (v == NULL)
return;
free(v->r_container);
}
/* return -1 at failed, 0 at not found, 1 at found. */
static int
vector_read_cmd_find(struct vector_read_cmd *v, enum read_cmd dst)
{
size_t i;
if (v == NULL || dst == READ_FAIL)
return (-1);
for (i = 0; i < v->size; ++i)
if (v->r_container[i] == dst)
return (1);
return (0);
}
static int
vector_read_cmd_init(struct vector_read_cmd *v)
{
if (v == NULL)
return (0);
v->size = 0;
v->capacity = VECTOR_DEF_CAPACITY;
if ((v->r_container = malloc(sizeof(enum read_cmd) * v->capacity))
== NULL)
return (0);
return (1);
}
static int
vector_read_cmd_pop(struct vector_read_cmd *v)
{
if (v == NULL || v->size == 0)
return (0);
--v->size;
v->r_container[v->size] = READ_FAIL;
return (1);
}
static int
vector_read_cmd_push(struct vector_read_cmd *v, enum read_cmd cmd)
{
enum read_cmd *tmp_r_ctn;
size_t tmp_cap;
size_t i;
if (v == NULL)
return (0);
if (v->size == v->capacity) {
tmp_cap = v->capacity * BUFFER_GROWFACTOR;
if ((tmp_r_ctn = malloc(sizeof(enum read_cmd) * tmp_cap))
== NULL)
return (0);
for (i = 0; i < v->size; ++i)
tmp_r_ctn[i] = v->r_container[i];
free(v->r_container);
v->r_container = tmp_r_ctn;
v->capacity = tmp_cap;
}
v->r_container[v->size] = cmd;
++v->size;
return (1);
}
static void
vector_type_qualifier_dest(struct vector_type_qualifier *v)
{
if (v == NULL)
return;
free(v->q_container);
vector_str_dest(&v->ext_name);
}
/* size, capacity, ext_name */
static int
vector_type_qualifier_init(struct vector_type_qualifier *v)
{
if (v == NULL)
return (0);
v->size = 0;
v->capacity = VECTOR_DEF_CAPACITY;
if ((v->q_container = malloc(sizeof(enum type_qualifier) * v->capacity))
== NULL)
return (0);
assert(v->q_container != NULL);
if (vector_str_init(&v->ext_name) == false) {
free(v->q_container);
return (0);
}
return (1);
}
static int
vector_type_qualifier_push(struct vector_type_qualifier *v,
enum type_qualifier t)
{
enum type_qualifier *tmp_ctn;
size_t tmp_cap;
size_t i;
if (v == NULL)
return (0);
if (v->size == v->capacity) {
tmp_cap = v->capacity * BUFFER_GROWFACTOR;
if ((tmp_ctn = malloc(sizeof(enum type_qualifier) * tmp_cap))
== NULL)
return (0);
for (i = 0; i < v->size; ++i)
tmp_ctn[i] = v->q_container[i];
free(v->q_container);
v->q_container = tmp_ctn;
v->capacity = tmp_cap;
}
v->q_container[v->size] = t;
++v->size;
return (1);
}
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