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Diffstat (limited to 'sos-code-article2/sos/assert.h')
-rw-r--r-- | sos-code-article2/sos/assert.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/sos-code-article2/sos/assert.h b/sos-code-article2/sos/assert.h new file mode 100644 index 0000000..a14ca0b --- /dev/null +++ b/sos-code-article2/sos/assert.h @@ -0,0 +1,42 @@ +/* Copyright (C) 2004 The KOS Team + + This program is free software; you can redistribute it and/or + modify it under the terms of the GNU General Public License + as published by the Free Software Foundation; either version 2 + of the License, or (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, + USA. +*/ +#ifndef _SOS_ASSERT_H_ +#define _SOS_ASSERT_H_ + +#include <drivers/bochs.h> +#include <drivers/x86_videomem.h> + +/** + * If the expr is FALSE, print a message and halt the machine + */ +#define SOS_ASSERT_FATAL(expr) \ + ({ \ + int __res=(int)(expr); \ + if (! __res) { \ + asm("cli\n"); /* disable interrupts -- x86 only */ \ + sos_bochs_printf("%s@%s:%d Assertion " # expr " failed\n", \ + __PRETTY_FUNCTION__, __FILE__, __LINE__); \ + sos_x86_videomem_printf(24, 0, 12, \ + "%s@%s:%d Assertion " # expr " failed", \ + __PRETTY_FUNCTION__, __FILE__, __LINE__); \ + for (;;) asm("hlt;") ; /* Infinite loop, ie simple system halt */ \ + } \ + }) + + +#endif /* _SOS_ASSERT_H_ */ |