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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /libffi/src/debug.c
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Diffstat (limited to 'libffi/src/debug.c')
-rw-r--r--libffi/src/debug.c59
1 files changed, 59 insertions, 0 deletions
diff --git a/libffi/src/debug.c b/libffi/src/debug.c
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+++ b/libffi/src/debug.c
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+/* -----------------------------------------------------------------------
+ debug.c - Copyright (c) 1996 Red Hat, Inc.
+
+ Permission is hereby granted, free of charge, to any person obtaining
+ a copy of this software and associated documentation files (the
+ ``Software''), to deal in the Software without restriction, including
+ without limitation the rights to use, copy, modify, merge, publish,
+ distribute, sublicense, and/or sell copies of the Software, and to
+ permit persons to whom the Software is furnished to do so, subject to
+ the following conditions:
+
+ The above copyright notice and this permission notice shall be included
+ in all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND,
+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ DEALINGS IN THE SOFTWARE.
+ ----------------------------------------------------------------------- */
+
+#include <ffi.h>
+#include <ffi_common.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+/* General debugging routines */
+
+void ffi_stop_here(void)
+{
+ /* This function is only useful for debugging purposes.
+ Place a breakpoint on ffi_stop_here to be notified of
+ significant events. */
+}
+
+/* This function should only be called via the FFI_ASSERT() macro */
+
+void ffi_assert(char *expr, char *file, int line)
+{
+ fprintf(stderr, "ASSERTION FAILURE: %s at %s:%d\n", expr, file, line);
+ ffi_stop_here();
+ abort();
+}
+
+/* Perform a sanity check on an ffi_type structure */
+
+void ffi_type_test(ffi_type *a, char *file, int line)
+{
+ FFI_ASSERT_AT(a != NULL, file, line);
+
+ FFI_ASSERT_AT(a->type <= FFI_TYPE_LAST, file, line);
+ FFI_ASSERT_AT(a->type == FFI_TYPE_VOID || a->size > 0, file, line);
+ FFI_ASSERT_AT(a->type == FFI_TYPE_VOID || a->alignment > 0, file, line);
+ FFI_ASSERT_AT(a->type != FFI_TYPE_STRUCT || a->elements != NULL, file, line);
+
+}