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Merge pull request #257 from tkchia/tkchia/abort

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libcc.ansi: make abort() try harder to abort the process
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David Given 2022-07-16 13:55:22 +02:00 • committed by GitHub
commit bca0a5381d
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1 changed files with 18 additions and 1 deletions
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17
lang/cem/libcc.ansi/core/misc/abort.c
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@ -1,14 +1,31 @@
/* /*
* (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands. * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
* See the copyright notice in the ACK home directory, in the file "Copyright". * See the copyright notice in the ACK home directory, in the file "Copyright".
*
* (c) copyright 2022 by TK Chia.
*/ */
/* $Id$ */ /* $Id$ */
#include <stdlib.h> #include <stdlib.h>
#include <sys/types.h> #include <sys/types.h>
#include <signal.h> #include <signal.h>
#include <unistd.h>
void abort(void) void abort(void)
{ {
unsigned short count = 0;
int *bad_ptr = NULL;
while (--count != 0)
raise(SIGABRT); raise(SIGABRT);
/*
* If the target platform does not implement raise(.), or the
* SIGABRT signal turns out to be handled or ignored, then our
* process may still be running. Try harder to make the process
* crash or exit. -- tkchia
*/
while (--count != 0)
abs(*bad_ptr);
write(2, "abort!\n", 7);
for (;;)
_exit(128 + SIGABRT);
} }