kmp_debug.cpp
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/*
* kmp_debug.cpp -- debug utilities for the Guide library
*/
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "kmp.h"
#include "kmp_debug.h" /* really necessary? */
#include "kmp_i18n.h"
#include "kmp_io.h"
#ifdef KMP_DEBUG
void __kmp_debug_printf_stdout(char const *format, ...) {
va_list ap;
va_start(ap, format);
__kmp_vprintf(kmp_out, format, ap);
va_end(ap);
}
#endif
void __kmp_debug_printf(char const *format, ...) {
va_list ap;
va_start(ap, format);
__kmp_vprintf(kmp_err, format, ap);
va_end(ap);
}
#ifdef KMP_USE_ASSERT
int __kmp_debug_assert(char const *msg, char const *file, int line) {
if (file == NULL) {
file = KMP_I18N_STR(UnknownFile);
} else {
// Remove directories from path, leave only file name. File name is enough,
// there is no need in bothering developers and customers with full paths.
char const *slash = strrchr(file, '/');
if (slash != NULL) {
file = slash + 1;
}
}
#ifdef KMP_DEBUG
__kmp_acquire_bootstrap_lock(&__kmp_stdio_lock);
__kmp_debug_printf("Assertion failure at %s(%d): %s.\n", file, line, msg);
__kmp_release_bootstrap_lock(&__kmp_stdio_lock);
#ifdef USE_ASSERT_BREAK
#if KMP_OS_WINDOWS
DebugBreak();
#endif
#endif // USE_ASSERT_BREAK
#ifdef USE_ASSERT_STALL
/* __kmp_infinite_loop(); */
for (;;)
;
#endif // USE_ASSERT_STALL
#ifdef USE_ASSERT_SEG
{
int volatile *ZERO = (int *)0;
++(*ZERO);
}
#endif // USE_ASSERT_SEG
#endif
__kmp_fatal(KMP_MSG(AssertionFailure, file, line), KMP_HNT(SubmitBugReport),
__kmp_msg_null);
return 0;
} // __kmp_debug_assert
#endif // KMP_USE_ASSERT
/* Dump debugging buffer to stderr */
void __kmp_dump_debug_buffer(void) {
if (__kmp_debug_buffer != NULL) {
int i;
int dc = __kmp_debug_count;
char *db = &__kmp_debug_buffer[(dc % __kmp_debug_buf_lines) *
__kmp_debug_buf_chars];
char *db_end =
&__kmp_debug_buffer[__kmp_debug_buf_lines * __kmp_debug_buf_chars];
char *db2;
__kmp_acquire_bootstrap_lock(&__kmp_stdio_lock);
__kmp_printf_no_lock("\nStart dump of debugging buffer (entry=%d):\n",
dc % __kmp_debug_buf_lines);
for (i = 0; i < __kmp_debug_buf_lines; i++) {
if (*db != '\0') {
/* Fix up where no carriage return before string termination char */
for (db2 = db + 1; db2 < db + __kmp_debug_buf_chars - 1; db2++) {
if (*db2 == '\0') {
if (*(db2 - 1) != '\n') {
*db2 = '\n';
*(db2 + 1) = '\0';
}
break;
}
}
/* Handle case at end by shortening the printed message by one char if
* necessary */
if (db2 == db + __kmp_debug_buf_chars - 1 && *db2 == '\0' &&
*(db2 - 1) != '\n') {
*(db2 - 1) = '\n';
}
__kmp_printf_no_lock("%4d: %.*s", i, __kmp_debug_buf_chars, db);
*db = '\0'; /* only let it print once! */
}
db += __kmp_debug_buf_chars;
if (db >= db_end)
db = __kmp_debug_buffer;
}
__kmp_printf_no_lock("End dump of debugging buffer (entry=%d).\n\n",
(dc + i - 1) % __kmp_debug_buf_lines);
__kmp_release_bootstrap_lock(&__kmp_stdio_lock);
}
}