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cpplib.c (cpp_define, cpp_undef): Make sure the stacked buffer ends with a newline and a NUL.

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* cpplib.c (cpp_define, cpp_undef): Make sure the stacked buffer
	ends with a newline and a NUL.  Don't be so clever manipulating
	strings.

From-SVN: r31864
This commit is contained in:
Zack Weinberg 2000-02-09 18:35:41 +00:00 committed by Zack Weinberg
parent e8b22dd136
commit 2387c1d432
2 changed files with 36 additions and 13 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2000-02-09 Zack Weinberg <zack@wolery.cumb.org>
* cpplib.c (cpp_define, cpp_undef): Make sure the stacked buffer
ends with a newline and a NUL. Don't be so clever manipulating
strings.
Wed Feb 9 14:18:08 MET 2000 Jan Hubicka <jh@suse.cz>
* reload1.c (reload) Align stack frame to cfun->stack_alignment_needed,

43
gcc/cpplib.c
View File

@ -186,6 +186,11 @@ cpp_grow_buffer (pfile, n)
CPP_SET_WRITTEN (pfile, old_written);
}
/* Process the string STR as if it appeared as the body of a #define
If STR is just an identifier, define it with value 1.
If STR has anything after the identifier, then it should
be identifier=definition. */
/* Process the string STR as if it appeared as the body of a #define
If STR is just an identifier, define it with value 1.
If STR has anything after the identifier, then it should
@ -199,21 +204,28 @@ cpp_define (pfile, str)
U_CHAR *buf, *p;
size_t count;
/* Copy the entire option so we can modify it. */
count = strlen (str) + 3;
buf = (U_CHAR *) alloca (count);
memcpy (buf, str, count - 2);
/* Change the first "=" in the string to a space. If there is none,
tack " 1" on the end. */
p = (U_CHAR *) strchr (buf, '=');
p = strchr (str, '=');
/* Copy the entire option so we can modify it.
Change the first "=" in the string to a space. If there is none,
tack " 1" on the end. Then add a newline and a NUL. */
if (p)
{
*p = ' ';
count -= 2;
count = strlen (str) + 2;
buf = (U_CHAR *) alloca (count);
memcpy (buf, str, count - 2);
buf[p - str] = ' ';
buf[count - 2] = '\n';
buf[count - 1] = '\0';
}
else
strcpy (&buf[count-3], " 1");
{
count = strlen (str) + 4;
buf = (U_CHAR *) alloca (count);
memcpy (buf, str, count - 4);
strcpy (&buf[count-4], " 1\n");
}
if (cpp_push_buffer (pfile, buf, count - 1) != NULL)
{
do_define (pfile, NULL);
@ -1476,14 +1488,19 @@ cpp_undef (pfile, macro)
cpp_reader *pfile;
U_CHAR *macro;
{
if (cpp_push_buffer (pfile, macro, strlen (macro)))
/* Copy the string so we can append a newline. */
size_t len = strlen (macro);
U_CHAR *buf = alloca (len + 2);
memcpy (buf, macro, len);
buf[len] = '\n';
buf[len + 1] = '\0';
if (cpp_push_buffer (pfile, buf, len + 1))
{
do_undef (pfile, NULL);
cpp_pop_buffer (pfile);
}
}
/*
* Report an error detected by the program we are processing.
* Use the text of the line in the error message.