1228 lines
23 KiB
C
1228 lines
23 KiB
C
/*-
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* Copyright (c) 2008 Hyogeol Lee <hyogeollee@gmail.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer
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* in this position and unchanged.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/types.h>
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#include <assert.h>
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#include <ctype.h>
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#include <errno.h>
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#include <libelftc.h>
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#include <limits.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "_libelftc.h"
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ELFTC_VCSID("$Id: libelftc_dem_arm.c 2065 2011-10-26 15:24:47Z jkoshy $");
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/**
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* @file cpp_demangle_arm.c
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* @brief Decode function name encoding in ARM.
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*
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* Function name encoding in "The Annotated C++ Reference Manual".
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*
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* Ref : "The Annotated C++ Reference Manual", Margaet A.Ellis,
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* Bjarne Stroustrup, AT&T Bell Laboratories 1990, pp 122-126.
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*/
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enum encode_type {
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ENCODE_FUNC, ENCODE_OP, ENCODE_OP_CT, ENCODE_OP_DT, ENCODE_OP_USER
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};
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struct cstring {
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char *buf;
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size_t size;
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};
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struct demangle_data {
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bool ptr, ref, cnst, array;
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struct cstring array_str;
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const char *p;
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enum encode_type type;
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struct vector_str vec;
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struct vector_str arg;
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};
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#define SIMPLE_HASH(x,y) (64 * x + y)
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#define CPP_DEMANGLE_ARM_TRY 128
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static void dest_cstring(struct cstring *);
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static void dest_demangle_data(struct demangle_data *);
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static bool init_cstring(struct cstring *, size_t);
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static bool init_demangle_data(struct demangle_data *);
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static bool push_CTDT(const char *, size_t, struct vector_str *);
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static bool read_array(struct demangle_data *);
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static bool read_class(struct demangle_data *);
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static bool read_func(struct demangle_data *);
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static bool read_func_name(struct demangle_data *);
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static bool read_func_ptr(struct demangle_data *);
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static bool read_memptr(struct demangle_data *);
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static bool read_op(struct demangle_data *);
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static bool read_op_user(struct demangle_data *);
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static bool read_qual_name(struct demangle_data *);
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static int read_subst(struct demangle_data *);
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static int read_subst_iter(struct demangle_data *);
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static bool read_type(struct demangle_data *);
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/**
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* @brief Decode the input string by the ARM style.
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*
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* @return New allocated demangled string or NULL if failed.
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*/
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char *
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cpp_demangle_ARM(const char *org)
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{
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struct demangle_data d;
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size_t arg_begin, arg_len;
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unsigned int try;
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char *rtn, *arg;
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if (org == NULL)
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return (NULL);
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if (init_demangle_data(&d) == false)
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return (NULL);
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try = 0;
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rtn = NULL;
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d.p = org;
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if (read_func_name(&d) == false)
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goto clean;
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if (d.type == ENCODE_OP_CT) {
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if (push_CTDT("::", 2, &d.vec) == false)
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goto clean;
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goto flat;
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}
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if (d.type == ENCODE_OP_DT) {
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if (push_CTDT("::~", 3, &d.vec) == false)
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goto clean;
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goto flat;
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}
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if (d.type == ENCODE_OP_USER)
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goto flat;
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/* function type */
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if (*d.p != 'F')
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goto clean;
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++d.p;
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/* start argument types */
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if (vector_str_push(&d.vec, "(", 1) == false)
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goto clean;
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for (;;) {
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if (*d.p == 'T') {
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const int rtn_subst = read_subst(&d);
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if (rtn_subst == -1)
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goto clean;
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else if (rtn_subst == 1)
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break;
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continue;
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}
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if (*d.p == 'N') {
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const int rtn_subst_iter = read_subst_iter(&d);
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if (rtn_subst_iter == -1)
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goto clean;
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else if(rtn_subst_iter == 1)
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break;
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continue;
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}
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arg_begin = d.vec.size;
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if (read_type(&d) == false)
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goto clean;
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if (d.ptr == true) {
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if (vector_str_push(&d.vec, "*", 1) == false)
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goto clean;
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d.ptr = false;
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}
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if (d.ref == true) {
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if (vector_str_push(&d.vec, "&", 1) == false)
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goto clean;
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d.ref = false;
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}
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if (d.cnst == true) {
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if (vector_str_push(&d.vec, " const", 6) == false)
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goto clean;
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d.cnst = false;
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}
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if (d.array == true) {
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if (vector_str_push(&d.vec, d.array_str.buf,
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d.array_str.size) == false)
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goto clean;
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dest_cstring(&d.array_str);
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d.array = false;
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}
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if (*d.p == '\0')
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break;
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if ((arg = vector_str_substr(&d.vec, arg_begin, d.vec.size - 1,
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&arg_len)) == NULL)
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goto clean;
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if (vector_str_push(&d.arg, arg, arg_len) == false)
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goto clean;
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free(arg);
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if (vector_str_push(&d.vec, ", ", 2) == false)
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goto clean;
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if (++try > CPP_DEMANGLE_ARM_TRY)
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goto clean;
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}
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/* end argument types */
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if (vector_str_push(&d.vec, ")", 1) == false)
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goto clean;
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flat:
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rtn = vector_str_get_flat(&d.vec, NULL);
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clean:
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dest_demangle_data(&d);
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return (rtn);
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}
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/**
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* @brief Test input string is encoded by the ARM style.
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*
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* @return True if input string is encoded by the ARM style.
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*/
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bool
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is_cpp_mangled_ARM(const char *org)
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{
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if (org == NULL)
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return (false);
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return (strstr(org, "__") != NULL);
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}
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static void
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dest_cstring(struct cstring *s)
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{
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if (s == NULL)
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return;
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free(s->buf);
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s->buf = NULL;
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s->size = 0;
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}
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static void
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dest_demangle_data(struct demangle_data *d)
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{
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if (d != NULL) {
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vector_str_dest(&d->arg);
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vector_str_dest(&d->vec);
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dest_cstring(&d->array_str);
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}
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}
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static bool
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init_cstring(struct cstring *s, size_t len)
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{
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if (s == NULL || len <= 1)
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return (false);
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if ((s->buf = malloc(sizeof(char) * len)) == NULL)
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return (false);
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s->size = len - 1;
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return (true);
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}
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static bool
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init_demangle_data(struct demangle_data *d)
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{
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if (d == NULL)
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return (false);
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d->ptr = false;
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d->ref = false;
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d->cnst = false;
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d->array = false;
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d->array_str.buf = NULL;
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d->array_str.size = 0;
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d->type = ENCODE_FUNC;
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if (vector_str_init(&d->vec) == false)
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return (false);
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if (vector_str_init(&d->arg) == false) {
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vector_str_dest(&d->vec);
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return (false);
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}
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return (true);
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}
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static bool
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push_CTDT(const char *s, size_t l, struct vector_str *v)
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{
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if (s == NULL || l == 0 || v == NULL)
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return (false);
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if (vector_str_push(v, s, l) == false)
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return (false);
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assert(v->size > 1);
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if (vector_str_push(v, v->container[v->size - 2],
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strlen(v->container[v->size - 2])) == false)
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return (false);
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if (vector_str_push(v, "()", 2) == false)
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return (false);
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return (true);
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}
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static bool
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read_array(struct demangle_data *d)
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{
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size_t len;
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const char *end;
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if (d == NULL || d->p == NULL)
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return (false);
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end = d->p;
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assert(end != NULL);
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for (;;) {
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if (*end == '\0')
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return (false);
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if (ELFTC_ISDIGIT(*end) == 0)
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break;
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++end;
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}
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if (*end != '_')
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return (false);
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len = end - d->p;
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assert(len > 0);
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dest_cstring(&d->array_str);
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if (init_cstring(&d->array_str, len + 3) == false)
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return (false);
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strncpy(d->array_str.buf + 1, d->p, len);
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*d->array_str.buf = '[';
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*(d->array_str.buf + len + 1) = ']';
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d->array = true;
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d->p = end + 1;
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return (true);
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}
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static bool
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read_class(struct demangle_data *d)
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{
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size_t len;
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char *str;
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if (d == NULL)
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return (false);
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len = strtol(d->p, &str, 10);
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if (len == 0 && (errno == EINVAL || errno == ERANGE))
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return (false);
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assert(len > 0);
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assert(str != NULL);
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if (vector_str_push(&d->vec, str, len) == false)
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return (false);
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d->p = str + len;
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return (true);
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}
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static bool
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read_func(struct demangle_data *d)
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{
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size_t len;
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const char *name;
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char *delim;
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if (d == NULL)
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return (false);
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assert(d->p != NULL && "d->p (org str) is NULL");
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if ((delim = strstr(d->p, "__")) == NULL)
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return (false);
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len = delim - d->p;
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assert(len != 0);
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name = d->p;
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d->p = delim + 2;
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if (*d->p == 'Q' && ELFTC_ISDIGIT(*(d->p + 1))) {
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++d->p;
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if (read_qual_name(d) == false)
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return (false);
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} else if (ELFTC_ISDIGIT(*d->p)) {
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if (read_class(d) == false)
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return (false);
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if (vector_str_push(&d->vec, "::", 2) == false)
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return (false);
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}
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if (vector_str_push(&d->vec, name, len) == false)
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return (false);
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return (true);
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}
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static bool
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read_func_name(struct demangle_data *d)
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{
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size_t len;
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bool rtn;
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char *op_name;
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if (d == NULL)
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return (false);
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rtn = false;
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op_name = NULL;
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assert(d->p != NULL && "d->p (org str) is NULL");
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if (*d->p == '_' && *(d->p + 1) == '_') {
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d->p += 2;
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d->type = ENCODE_OP;
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if (read_op(d) == false)
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return (false);
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|
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if (d->type == ENCODE_OP_CT || d->type == ENCODE_OP_DT ||
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d->type == ENCODE_OP_USER)
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return (true);
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|
|
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/* skip "__" */
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d->p += 2;
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|
|
/* assume delimiter is removed */
|
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if (*d->p == 'Q' && ELFTC_ISDIGIT(*(d->p + 1))) {
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++d->p;
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|
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assert(d->vec.size > 0);
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|
|
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len = strlen(d->vec.container[d->vec.size - 1]);
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if ((op_name = malloc(sizeof(char) * (len + 1)))
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== NULL)
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return (false);
|
|
|
|
snprintf(op_name, len + 1, "%s",
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d->vec.container[d->vec.size - 1]);
|
|
vector_str_pop(&d->vec);
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|
|
|
if (read_qual_name(d) == false)
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goto clean;
|
|
|
|
if (vector_str_push(&d->vec, "::", 2) == false)
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goto clean;
|
|
|
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if (vector_str_push(&d->vec, op_name, len) == false)
|
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goto clean;
|
|
|
|
rtn = true;
|
|
} else if (ELFTC_ISDIGIT(*d->p)) {
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assert(d->vec.size > 0);
|
|
|
|
len = strlen(d->vec.container[d->vec.size - 1]);
|
|
if ((op_name = malloc(sizeof(char) * (len + 1)))
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== NULL)
|
|
return (false);
|
|
|
|
snprintf(op_name, len + 1, "%s",
|
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d->vec.container[d->vec.size - 1]);
|
|
vector_str_pop(&d->vec);
|
|
|
|
if (read_class(d) == false)
|
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goto clean;
|
|
|
|
if (vector_str_push(&d->vec, "::", 2) == false)
|
|
goto clean;
|
|
|
|
if (vector_str_push(&d->vec, op_name, len) == false)
|
|
goto clean;
|
|
|
|
rtn = true;
|
|
}
|
|
} else
|
|
return (read_func(d));
|
|
|
|
clean:
|
|
free(op_name);
|
|
|
|
return (rtn);
|
|
}
|
|
|
|
/* Read function ptr type */
|
|
static bool
|
|
read_func_ptr(struct demangle_data *d)
|
|
{
|
|
struct demangle_data fptr;
|
|
size_t arg_len, rtn_len;
|
|
char *arg_type, *rtn_type;
|
|
int lim;
|
|
|
|
if (d == NULL)
|
|
return (false);
|
|
|
|
if (init_demangle_data(&fptr) == false)
|
|
return (false);
|
|
|
|
fptr.p = d->p + 1;
|
|
lim = 0;
|
|
arg_type = NULL;
|
|
rtn_type = NULL;
|
|
|
|
for (;;) {
|
|
if (read_type(&fptr) == false) {
|
|
dest_demangle_data(&fptr);
|
|
|
|
return (false);
|
|
}
|
|
|
|
if (fptr.ptr == true) {
|
|
if (vector_str_push(&fptr.vec, "*", 1) == false) {
|
|
dest_demangle_data(&fptr);
|
|
|
|
return (false);
|
|
}
|
|
|
|
fptr.ptr = false;
|
|
}
|
|
|
|
if (fptr.ref == true) {
|
|
if (vector_str_push(&fptr.vec, "&", 1) == false) {
|
|
dest_demangle_data(&fptr);
|
|
|
|
return (false);
|
|
}
|
|
|
|
fptr.ref = false;
|
|
}
|
|
|
|
if (fptr.cnst == true) {
|
|
if (vector_str_push(&fptr.vec, " const", 6) == false) {
|
|
dest_demangle_data(&fptr);
|
|
|
|
return (false);
|
|
}
|
|
|
|
fptr.cnst = false;
|
|
}
|
|
|
|
if (*fptr.p == '_')
|
|
break;
|
|
|
|
if (vector_str_push(&fptr.vec, ", ", 2) == false) {
|
|
dest_demangle_data(&fptr);
|
|
|
|
return (false);
|
|
}
|
|
|
|
if (++lim > CPP_DEMANGLE_ARM_TRY) {
|
|
|
|
dest_demangle_data(&fptr);
|
|
|
|
return (false);
|
|
}
|
|
}
|
|
|
|
arg_type = vector_str_get_flat(&fptr.vec, &arg_len);
|
|
/* skip '_' */
|
|
d->p = fptr.p + 1;
|
|
|
|
dest_demangle_data(&fptr);
|
|
|
|
if (init_demangle_data(&fptr) == false) {
|
|
free(arg_type);
|
|
|
|
return (false);
|
|
}
|
|
|
|
fptr.p = d->p;
|
|
lim = 0;
|
|
|
|
if (read_type(&fptr) == false) {
|
|
free(arg_type);
|
|
dest_demangle_data(&fptr);
|
|
|
|
return (false);
|
|
}
|
|
|
|
rtn_type = vector_str_get_flat(&fptr.vec, &rtn_len);
|
|
d->p = fptr.p;
|
|
|
|
|
|
dest_demangle_data(&fptr);
|
|
|
|
if (vector_str_push(&d->vec, rtn_type, rtn_len) == false) {
|
|
free(rtn_type);
|
|
free(arg_type);
|
|
|
|
return (false);
|
|
}
|
|
|
|
free(rtn_type);
|
|
|
|
if (vector_str_push(&d->vec, " (*)(", 5) == false) {
|
|
free(arg_type);
|
|
|
|
return (false);
|
|
}
|
|
|
|
if (vector_str_push(&d->vec, arg_type, arg_len) == false) {
|
|
free(arg_type);
|
|
|
|
return (false);
|
|
}
|
|
|
|
free(arg_type);
|
|
|
|
return (vector_str_push(&d->vec, ")", 1));
|
|
}
|
|
|
|
static bool
|
|
read_memptr(struct demangle_data *d)
|
|
{
|
|
struct demangle_data mptr;
|
|
size_t len;
|
|
bool rtn;
|
|
char *mptr_str;
|
|
|
|
if (d == NULL || d->p == NULL)
|
|
return (false);
|
|
|
|
if (init_demangle_data(&mptr) == false)
|
|
return (false);
|
|
|
|
rtn = false;
|
|
mptr_str = NULL;
|
|
|
|
mptr.p = d->p;
|
|
if (*mptr.p == 'Q') {
|
|
++mptr.p;
|
|
|
|
if (read_qual_name(&mptr) == false)
|
|
goto clean;
|
|
} else {
|
|
if (read_class(&mptr) == false)
|
|
goto clean;
|
|
}
|
|
|
|
d->p = mptr.p;
|
|
|
|
if ((mptr_str = vector_str_get_flat(&mptr.vec, &len)) == NULL)
|
|
goto clean;
|
|
|
|
if (vector_str_push(&d->vec, mptr_str, len) == false)
|
|
goto clean;
|
|
|
|
if (vector_str_push(&d->vec, "::*", 3) == false)
|
|
goto clean;
|
|
|
|
rtn = true;
|
|
clean:
|
|
free(mptr_str);
|
|
dest_demangle_data(&mptr);
|
|
|
|
return (rtn);
|
|
}
|
|
|
|
static bool
|
|
read_op(struct demangle_data *d)
|
|
{
|
|
|
|
if (d == NULL)
|
|
return (false);
|
|
|
|
assert(d->p != NULL && "d->p (org str) is NULL");
|
|
|
|
switch (SIMPLE_HASH(*(d->p), *(d->p+1))) {
|
|
case SIMPLE_HASH('m', 'l') :
|
|
d->p += 2;
|
|
return (vector_str_push(&d->vec, "operator*", 9));
|
|
case SIMPLE_HASH('d', 'v') :
|
|
d->p += 2;
|
|
return (vector_str_push(&d->vec, "operator/", 9));
|
|
case SIMPLE_HASH('m', 'd') :
|
|
d->p += 2;
|
|
return (vector_str_push(&d->vec, "operator%", 9));
|
|
case SIMPLE_HASH('p', 'l') :
|
|
d->p += 2;
|
|
return (vector_str_push(&d->vec, "operator+", 9));
|
|
case SIMPLE_HASH('m', 'i') :
|
|
d->p += 2;
|
|
return (vector_str_push(&d->vec, "operator-", 9));
|
|
case SIMPLE_HASH('l', 's') :
|
|
d->p += 2;
|
|
return (vector_str_push(&d->vec, "operator<<", 10));
|
|
case SIMPLE_HASH('r', 's') :
|
|
d->p += 2;
|
|
return (vector_str_push(&d->vec, "operator>>", 10));
|
|
case SIMPLE_HASH('e', 'q') :
|
|
d->p += 2;
|
|
return (vector_str_push(&d->vec, "operator==", 10));
|
|
case SIMPLE_HASH('n', 'e') :
|
|
d->p += 2;
|
|
return (vector_str_push(&d->vec, "operator!=", 10));
|
|
case SIMPLE_HASH('l', 't') :
|
|
d->p += 2;
|
|
return (vector_str_push(&d->vec, "operator<", 9));
|
|
case SIMPLE_HASH('g', 't') :
|
|
d->p += 2;
|
|
return (vector_str_push(&d->vec, "operator>", 9));
|
|
case SIMPLE_HASH('l', 'e') :
|
|
d->p += 2;
|
|
return (vector_str_push(&d->vec, "operator<=", 10));
|
|
case SIMPLE_HASH('g', 'e') :
|
|
d->p += 2;
|
|
return (vector_str_push(&d->vec, "operator>=", 10));
|
|
case SIMPLE_HASH('a', 'd') :
|
|
d->p += 2;
|
|
if (*d->p == 'v') {
|
|
++d->p;
|
|
return (vector_str_push(&d->vec, "operator/=",
|
|
10));
|
|
} else
|
|
return (vector_str_push(&d->vec, "operator&", 9));
|
|
case SIMPLE_HASH('o', 'r') :
|
|
d->p += 2;
|
|
return (vector_str_push(&d->vec, "operator|", 9));
|
|
case SIMPLE_HASH('e', 'r') :
|
|
d->p += 2;
|
|
return (vector_str_push(&d->vec, "operator^", 9));
|
|
case SIMPLE_HASH('a', 'a') :
|
|
d->p += 2;
|
|
if (*d->p == 'd') {
|
|
++d->p;
|
|
return (vector_str_push(&d->vec, "operator&=",
|
|
10));
|
|
} else
|
|
return (vector_str_push(&d->vec, "operator&&",
|
|
10));
|
|
case SIMPLE_HASH('o', 'o') :
|
|
d->p += 2;
|
|
return (vector_str_push(&d->vec, "operator||", 10));
|
|
case SIMPLE_HASH('n', 't') :
|
|
d->p += 2;
|
|
return (vector_str_push(&d->vec, "operator!", 9));
|
|
case SIMPLE_HASH('c', 'o') :
|
|
d->p += 2;
|
|
return (vector_str_push(&d->vec, "operator~", 9));
|
|
case SIMPLE_HASH('p', 'p') :
|
|
d->p += 2;
|
|
return (vector_str_push(&d->vec, "operator++", 10));
|
|
case SIMPLE_HASH('m', 'm') :
|
|
d->p += 2;
|
|
return (vector_str_push(&d->vec, "operator--", 10));
|
|
case SIMPLE_HASH('a', 's') :
|
|
d->p += 2;
|
|
return (vector_str_push(&d->vec, "operator=", 9));
|
|
case SIMPLE_HASH('r', 'f') :
|
|
d->p += 2;
|
|
return (vector_str_push(&d->vec, "operator->", 10));
|
|
case SIMPLE_HASH('a', 'p') :
|
|
/* apl */
|
|
if (*(d->p + 2) != 'l')
|
|
return (false);
|
|
|
|
d->p += 3;
|
|
return (vector_str_push(&d->vec, "operator+=", 10));
|
|
case SIMPLE_HASH('a', 'm') :
|
|
d->p += 2;
|
|
if (*d->p == 'i') {
|
|
++d->p;
|
|
return (vector_str_push(&d->vec, "operator-=",
|
|
10));
|
|
} else if (*d->p == 'u') {
|
|
++d->p;
|
|
return (vector_str_push(&d->vec, "operator*=",
|
|
10));
|
|
} else if (*d->p == 'd') {
|
|
++d->p;
|
|
return (vector_str_push(&d->vec, "operator%=",
|
|
10));
|
|
}
|
|
|
|
return (false);
|
|
case SIMPLE_HASH('a', 'l') :
|
|
/* als */
|
|
if (*(d->p + 2) != 's')
|
|
return (false);
|
|
|
|
d->p += 3;
|
|
return (vector_str_push(&d->vec, "operator<<=", 11));
|
|
case SIMPLE_HASH('a', 'r') :
|
|
/* ars */
|
|
if (*(d->p + 2) != 's')
|
|
return (false);
|
|
|
|
d->p += 3;
|
|
return (vector_str_push(&d->vec, "operator>>=", 11));
|
|
case SIMPLE_HASH('a', 'o') :
|
|
/* aor */
|
|
if (*(d->p + 2) != 'r')
|
|
return (false);
|
|
|
|
d->p += 3;
|
|
return (vector_str_push(&d->vec, "operator|=", 10));
|
|
case SIMPLE_HASH('a', 'e') :
|
|
/* aer */
|
|
if (*(d->p + 2) != 'r')
|
|
return (false);
|
|
|
|
d->p += 3;
|
|
return (vector_str_push(&d->vec, "operator^=", 10));
|
|
case SIMPLE_HASH('c', 'm') :
|
|
d->p += 2;
|
|
return (vector_str_push(&d->vec, "operator,", 9));
|
|
case SIMPLE_HASH('r', 'm') :
|
|
d->p += 2;
|
|
return (vector_str_push(&d->vec, "operator->*", 11));
|
|
case SIMPLE_HASH('c', 'l') :
|
|
d->p += 2;
|
|
return (vector_str_push(&d->vec, "()", 2));
|
|
case SIMPLE_HASH('v', 'c') :
|
|
d->p += 2;
|
|
return (vector_str_push(&d->vec, "[]", 2));
|
|
case SIMPLE_HASH('c', 't') :
|
|
d->p += 4;
|
|
d->type = ENCODE_OP_CT;
|
|
|
|
if (*d->p == 'Q' && ELFTC_ISDIGIT(*(d->p + 1))) {
|
|
++d->p;
|
|
|
|
return (read_qual_name(d));
|
|
} else if (ELFTC_ISDIGIT(*d->p))
|
|
return (read_class(d));
|
|
|
|
return (false);
|
|
case SIMPLE_HASH('d', 't') :
|
|
d->p += 4;
|
|
d->type = ENCODE_OP_DT;
|
|
|
|
if (*d->p == 'Q' && ELFTC_ISDIGIT(*(d->p + 1))) {
|
|
++d->p;
|
|
|
|
return (read_qual_name(d));
|
|
} else if (ELFTC_ISDIGIT(*d->p))
|
|
return (read_class(d));
|
|
|
|
return (false);
|
|
case SIMPLE_HASH('n', 'w') :
|
|
d->p += 2;
|
|
return (vector_str_push(&d->vec, "operator new()", 14));
|
|
case SIMPLE_HASH('d', 'l') :
|
|
d->p += 2;
|
|
return (vector_str_push(&d->vec, "operator delete()",
|
|
17));
|
|
case SIMPLE_HASH('o', 'p') :
|
|
/* __op<TO_TYPE>__<FROM_TYPE> */
|
|
d->p += 2;
|
|
|
|
d->type = ENCODE_OP_USER;
|
|
|
|
return (read_op_user(d));
|
|
default :
|
|
return (false);
|
|
};
|
|
}
|
|
|
|
static bool
|
|
read_op_user(struct demangle_data *d)
|
|
{
|
|
struct demangle_data from, to;
|
|
size_t from_len, to_len;
|
|
bool rtn;
|
|
char *from_str, *to_str;
|
|
|
|
if (d == NULL)
|
|
return (false);
|
|
|
|
if (init_demangle_data(&from) == false)
|
|
return (false);
|
|
|
|
rtn = false;
|
|
from_str = NULL;
|
|
to_str = NULL;
|
|
if (init_demangle_data(&to) == false)
|
|
goto clean;
|
|
|
|
to.p = d->p;
|
|
if (*to.p == 'Q') {
|
|
++to.p;
|
|
|
|
if (read_qual_name(&to) == false)
|
|
goto clean;
|
|
|
|
/* pop last '::' */
|
|
if (vector_str_pop(&to.vec) == false)
|
|
goto clean;
|
|
} else {
|
|
if (read_class(&to) == false)
|
|
goto clean;
|
|
|
|
/* skip '__' */
|
|
to.p += 2;
|
|
}
|
|
|
|
if ((to_str = vector_str_get_flat(&to.vec, &to_len)) == NULL)
|
|
goto clean;
|
|
|
|
from.p = to.p;
|
|
if (*from.p == 'Q') {
|
|
++from.p;
|
|
|
|
if (read_qual_name(&from) == false)
|
|
goto clean;
|
|
|
|
/* pop last '::' */
|
|
if (vector_str_pop(&from.vec) == false)
|
|
goto clean;
|
|
} else {
|
|
if (read_class(&from) == false)
|
|
goto clean;
|
|
}
|
|
|
|
if ((from_str = vector_str_get_flat(&from.vec, &from_len)) == NULL)
|
|
goto clean;
|
|
|
|
if (vector_str_push(&d->vec, from_str, from_len) == false)
|
|
goto clean;
|
|
|
|
if (vector_str_push(&d->vec, "::operator ", 11) == false)
|
|
return (false);
|
|
|
|
if (vector_str_push(&d->vec, to_str, to_len) == false)
|
|
goto clean;
|
|
|
|
rtn = vector_str_push(&d->vec, "()", 2);
|
|
clean:
|
|
free(to_str);
|
|
free(from_str);
|
|
dest_demangle_data(&to);
|
|
dest_demangle_data(&from);
|
|
|
|
return (rtn);
|
|
}
|
|
|
|
/* single digit + class names */
|
|
static bool
|
|
read_qual_name(struct demangle_data *d)
|
|
{
|
|
int i;
|
|
char num;
|
|
|
|
if (d == NULL)
|
|
return (false);
|
|
|
|
assert(d->p != NULL && "d->p (org str) is NULL");
|
|
assert(*d->p > 48 && *d->p < 58 && "*d->p not in ASCII numeric range");
|
|
|
|
num = *d->p - 48;
|
|
|
|
assert(num > 0);
|
|
|
|
++d->p;
|
|
for (i = 0; i < num ; ++i) {
|
|
if (read_class(d) == false)
|
|
return (false);
|
|
|
|
if (vector_str_push(&d->vec, "::", 2) == false)
|
|
return (false);
|
|
}
|
|
|
|
if (*d->p != '\0')
|
|
d->p = d->p + 2;
|
|
|
|
return (true);
|
|
}
|
|
|
|
/* Return -1 at fail, 0 at success, and 1 at end */
|
|
static int
|
|
read_subst(struct demangle_data *d)
|
|
{
|
|
size_t idx;
|
|
char *str;
|
|
|
|
if (d == NULL)
|
|
return (-1);
|
|
|
|
idx = strtol(d->p + 1, &str, 10);
|
|
if (idx == 0 && (errno == EINVAL || errno == ERANGE))
|
|
return (-1);
|
|
|
|
assert(idx > 0);
|
|
assert(str != NULL);
|
|
|
|
d->p = str;
|
|
|
|
if (vector_str_push(&d->vec, d->arg.container[idx - 1],
|
|
strlen(d->arg.container[idx - 1])) == false)
|
|
return (-1);
|
|
|
|
if (vector_str_push(&d->arg, d->arg.container[idx - 1],
|
|
strlen(d->arg.container[idx - 1])) == false)
|
|
return (-1);
|
|
|
|
if (*d->p == '\0')
|
|
return (1);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
read_subst_iter(struct demangle_data *d)
|
|
{
|
|
int i;
|
|
size_t idx;
|
|
char repeat;
|
|
char *str;
|
|
|
|
if (d == NULL)
|
|
return (-1);
|
|
|
|
++d->p;
|
|
assert(*d->p > 48 && *d->p < 58 && "*d->p not in ASCII numeric range");
|
|
|
|
repeat = *d->p - 48;
|
|
|
|
assert(repeat > 1);
|
|
|
|
++d->p;
|
|
|
|
idx = strtol(d->p, &str, 10);
|
|
if (idx == 0 && (errno == EINVAL || errno == ERANGE))
|
|
return (-1);
|
|
|
|
assert(idx > 0);
|
|
assert(str != NULL);
|
|
|
|
d->p = str;
|
|
|
|
for (i = 0; i < repeat ; ++i) {
|
|
if (vector_str_push(&d->vec, d->arg.container[idx - 1],
|
|
strlen(d->arg.container[idx - 1])) == false)
|
|
return (-1);
|
|
|
|
if (vector_str_push(&d->arg, d->arg.container[idx - 1],
|
|
strlen(d->arg.container[idx - 1])) == false)
|
|
return (-1);
|
|
|
|
if (i != repeat - 1 &&
|
|
vector_str_push(&d->vec, ", ", 2) == false)
|
|
return (-1);
|
|
}
|
|
|
|
if (*d->p == '\0')
|
|
return (1);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static bool
|
|
read_type(struct demangle_data *d)
|
|
{
|
|
|
|
if (d == NULL)
|
|
return (false);
|
|
|
|
assert(d->p != NULL && "d->p (org str) is NULL");
|
|
|
|
while (*d->p == 'U' || *d->p == 'C' || *d->p == 'V' || *d->p == 'S' ||
|
|
*d->p == 'P' || *d->p == 'R' || *d->p == 'A' || *d->p == 'F' ||
|
|
*d->p == 'M') {
|
|
switch (*d->p) {
|
|
case 'U' :
|
|
++d->p;
|
|
|
|
if (vector_str_push(&d->vec, "unsigned ", 9) == false)
|
|
return (false);
|
|
|
|
break;
|
|
case 'C' :
|
|
++d->p;
|
|
|
|
if (*d->p == 'P')
|
|
d->cnst = true;
|
|
else {
|
|
if (vector_str_push(&d->vec, "const ", 6) ==
|
|
false)
|
|
return (false);
|
|
}
|
|
|
|
break;
|
|
case 'V' :
|
|
++d->p;
|
|
|
|
if (vector_str_push(&d->vec, "volatile ", 9) == false)
|
|
return (false);
|
|
|
|
break;
|
|
case 'S' :
|
|
++d->p;
|
|
|
|
if (vector_str_push(&d->vec, "signed ", 7) == false)
|
|
return (false);
|
|
|
|
break;
|
|
case 'P' :
|
|
++d->p;
|
|
|
|
if (*d->p == 'F')
|
|
return (read_func_ptr(d));
|
|
else
|
|
d->ptr = true;
|
|
|
|
break;
|
|
case 'R' :
|
|
++d->p;
|
|
|
|
d->ref = true;
|
|
|
|
break;
|
|
case 'F' :
|
|
break;
|
|
case 'A' :
|
|
++d->p;
|
|
|
|
if (read_array(d) == false)
|
|
return (false);
|
|
|
|
break;
|
|
case 'M' :
|
|
++d->p;
|
|
|
|
if (read_memptr(d) == false)
|
|
return (false);
|
|
|
|
break;
|
|
default :
|
|
break;
|
|
};
|
|
};
|
|
|
|
if (ELFTC_ISDIGIT(*d->p))
|
|
return (read_class(d));
|
|
|
|
switch (*d->p) {
|
|
case 'Q' :
|
|
++d->p;
|
|
|
|
return (read_qual_name(d));
|
|
case 'v' :
|
|
++d->p;
|
|
|
|
return (vector_str_push(&d->vec, "void", 4));
|
|
case 'c' :
|
|
++d->p;
|
|
|
|
return (vector_str_push(&d->vec, "char", 4));
|
|
case 's' :
|
|
++d->p;
|
|
|
|
return (vector_str_push(&d->vec, "short", 5));
|
|
case 'i' :
|
|
++d->p;
|
|
|
|
return (vector_str_push(&d->vec, "int", 3));
|
|
case 'l' :
|
|
++d->p;
|
|
|
|
return (vector_str_push(&d->vec, "long", 4));
|
|
case 'f' :
|
|
++d->p;
|
|
|
|
return (vector_str_push(&d->vec, "float", 5));
|
|
case 'd':
|
|
++d->p;
|
|
|
|
return (vector_str_push(&d->vec, "double", 6));
|
|
case 'r':
|
|
++d->p;
|
|
|
|
return (vector_str_push(&d->vec, "long double", 11));
|
|
case 'e':
|
|
++d->p;
|
|
|
|
return (vector_str_push(&d->vec, "...", 3));
|
|
default:
|
|
return (false);
|
|
};
|
|
|
|
/* NOTREACHED */
|
|
return (false);
|
|
}
|