cpplib.c (xcalloc): From from cppalloc.c.
* cpplib.c (xcalloc): From from cppalloc.c. * cpplib.c (cpp_push_buffer): If recursion too deap, return NULL rather than exiting with fatal. (make_assertion, cpp_expand_to_buffer, push_macro_expansion, do_include, cpp_start_rea): Handle NULL return from cpp_push_buffer. (output_line_command): Update position even if no_output. (parse_clear_mark): Use fatal instead of abort. From-SVN: r12207
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426b6fa3ab
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56
gcc/cpplib.c
56
gcc/cpplib.c
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@ -262,7 +262,9 @@ static void trigraph_pcp ();
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static int finclude ();
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static void validate_else ();
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static int comp_def_part ();
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#ifdef abort
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extern void fancy_abort ();
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#endif
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static void pipe_closed ();
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static void print_containing_files ();
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static int lookup_import ();
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@ -288,7 +290,7 @@ static void push_macro_expansion PARAMS ((cpp_reader *,
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U_CHAR*, int, HASHNODE*));
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static struct cpp_pending *nreverse_pending PARAMS ((struct cpp_pending*));
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extern char *xrealloc ();
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extern char *xcalloc ();
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static char *xcalloc ();
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static char *savestring ();
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static void conditional_skip ();
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@ -605,7 +607,6 @@ make_assertion (pfile, option, str)
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char *option;
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U_CHAR *str;
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{
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cpp_buffer *ip;
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struct directive *kt;
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U_CHAR *buf, *p, *q;
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@ -637,9 +638,11 @@ make_assertion (pfile, option, str)
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return;
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}
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ip = cpp_push_buffer (pfile, buf, strlen (buf));
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do_assert (pfile, NULL, NULL, NULL);
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cpp_pop_buffer (pfile);
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if (cpp_push_buffer (pfile, buf, strlen (buf)) != NULL)
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{
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do_assert (pfile, NULL, NULL, NULL);
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cpp_pop_buffer (pfile);
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}
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}
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/* Append a chain of `struct file_name_list's
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@ -950,7 +953,7 @@ cpp_skip_hspace (pfile)
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/* Read the rest of the current line.
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The line is appended to PFILE's output buffer. */
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void
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static void
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copy_rest_of_line (pfile)
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cpp_reader *pfile;
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{
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@ -1864,7 +1867,11 @@ cpp_push_buffer (pfile, buffer, length)
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{
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register cpp_buffer *buf = CPP_BUFFER (pfile);
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if (buf == pfile->buffer_stack)
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fatal ("%s: macro or `#include' recursion too deep", buf->fname);
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{
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cpp_fatal (pfile, "%s: macro or `#include' recursion too deep",
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buf->fname);
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return NULL;
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}
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buf--;
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bzero ((char *) buf, sizeof (cpp_buffer));
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CPP_BUFFER (pfile) = buf;
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@ -1946,6 +1953,8 @@ cpp_expand_to_buffer (pfile, buf, length)
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buf1[length] = 0;
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ip = cpp_push_buffer (pfile, buf1, length);
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if (ip == NULL)
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return;
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ip->has_escapes = 1;
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#if 0
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ip->lineno = obuf.lineno = 1;
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@ -2067,11 +2076,15 @@ output_line_command (pfile, conditional, file_change)
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long line, col;
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cpp_buffer *ip = CPP_BUFFER (pfile);
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if (ip->fname == NULL || CPP_OPTIONS (pfile)->no_output) {
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if (ip->fname == NULL)
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return;
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}
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update_position (ip);
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if (CPP_OPTIONS (pfile)->no_line_commands
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|| CPP_OPTIONS (pfile)->no_output)
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return;
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line = CPP_BUFFER (pfile)->lineno;
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col = CPP_BUFFER (pfile)->colno;
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adjust_position (CPP_LINE_BASE (ip), ip->cur, &line, &col);
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@ -2986,6 +2999,8 @@ push_macro_expansion (pfile, xbuf, xbuf_len, hp)
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HASHNODE *hp;
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{
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register cpp_buffer *mbuf = cpp_push_buffer (pfile, xbuf, xbuf_len);
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if (mbuf == NULL)
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return;
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mbuf->cleanup = macro_cleanup;
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mbuf->data = hp;
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@ -3453,7 +3468,8 @@ do_include (pfile, keyword, unused1, unused2)
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#endif
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/* Actually process the file */
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cpp_push_buffer (pfile, NULL, 0);
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if (cpp_push_buffer (pfile, NULL, 0) == NULL)
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return 0;
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if (finclude (pfile, f, fname, is_system_include (pfile, fname),
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searchptr != dsp ? searchptr : SELF_DIR_DUMMY))
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{
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@ -5681,6 +5697,8 @@ cpp_start_read (pfile, fname)
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/* Do partial setup of input buffer for the sake of generating
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early #line directives (when -g is in effect). */
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fp = cpp_push_buffer (pfile, NULL, 0);
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if (!fp)
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return 0;
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if (opts->in_fname == NULL)
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opts->in_fname = "";
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fp->nominal_fname = fp->fname = opts->in_fname;
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@ -5945,7 +5963,8 @@ cpp_start_read (pfile, fname)
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cpp_perror_with_name (pfile, pend->arg);
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return 0;
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}
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cpp_push_buffer (pfile, NULL, 0);
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if (!cpp_push_buffer (pfile, NULL, 0))
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return 0;
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finclude (pfile, fd, pend->arg, 0, NULL_PTR);
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cpp_scan_buffer (pfile);
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}
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@ -6113,7 +6132,8 @@ cpp_start_read (pfile, fname)
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cpp_perror_with_name (pfile, pend->arg);
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return 0;
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}
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cpp_push_buffer (pfile, NULL, 0);
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if (!cpp_push_buffer (pfile, NULL, 0))
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return 0;
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finclude (pfile, fd, pend->arg, 0, NULL_PTR);
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}
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}
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@ -7169,6 +7189,16 @@ safe_read (desc, ptr, len)
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return len - left;
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}
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static char *
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xcalloc (number, size)
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unsigned number, size;
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{
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register unsigned total = number * size;
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register char *ptr = (char *) xmalloc (total);
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bzero (ptr, total);
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return ptr;
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}
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static char *
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savestring (input)
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char *input;
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@ -7199,7 +7229,7 @@ parse_clear_mark (pmark)
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{
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struct parse_marker **pp = &pmark->buf->marks;
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for (; ; pp = &(*pp)->next) {
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if (*pp == NULL) fatal ("internal error", "in parse_set_mark");
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if (*pp == NULL) abort ();
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if (*pp == pmark) break;
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}
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*pp = pmark->next;
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