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authorGabe Black <gabeblack@google.com>2013-11-23 00:38:49 -0800
committerIsaac Christensen <isaac.christensen@se-eng.com>2014-09-15 17:37:13 +0200
commit7c7b5ffabbaa55faa17adb18ebbd1de79a9c61eb (patch)
tree8da7693be44dd1adf896c0958181be74702c0534 /payloads/libpayload/libc
parentaca67ed0d218fb551ef29416f079d548e77fc26f (diff)
downloadcoreboot-7c7b5ffabbaa55faa17adb18ebbd1de79a9c61eb.tar.xz
libpayload: Add a new "die" function to fatally signal programming errors.
If a programming error is detected, die can be used to print a message and stop execution similar to failing an assert. There's also a "die_if" function which is conditional. die functions, like asserts, should be used to trap programming errors and not when the hardware does something wrong. If all code was written perfectly, no die function would ever be called. In other words, it would be appropriate to use die if a function was called with a value that was out of bounds or if malloc failed. It wouldn't be appropriate if an external device doesn't respond. In the future, the die family of functions might print a stack trace or show other debugging info. Old-Change-Id: I653fc8cb0b4e459522f1b86f7fac280836d57916 Signed-off-by: Gabe Black <gabeblack@google.com> Reviewed-on: https://chromium-review.googlesource.com/178000 Reviewed-by: Gabe Black <gabeblack@chromium.org> Commit-Queue: Gabe Black <gabeblack@chromium.org> Tested-by: Gabe Black <gabeblack@chromium.org> (cherry picked from commit 59df109d56a0f5346562de9b3124666a4443adf0) libpayload: Fix the license in some files which were accidentally made GPL. Some files were accidentally made GPL when they were added to libpayload. This change changes them over to a BSD license to be in line with the intended license of libpayload. Old-Change-Id: Ia95ac4951b173dcb93cb489705680e7313df3c92 Signed-off-by: Gabe Black <gabeblack@google.com> Reviewed-on: https://chromium-review.googlesource.com/182202 Reviewed-by: Ronald Minnich <rminnich@chromium.org> Commit-Queue: Gabe Black <gabeblack@chromium.org> Tested-by: Gabe Black <gabeblack@chromium.org> (cherry picked from commit 5f47600e50e82de226f2fa6ea81d4a3d1c56277b) Squashed the initial patch for "die" functions and a later update to the license header. Change-Id: I3a62cd820e676f4458e61808733d81edd3d76e87 Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com> Reviewed-on: http://review.coreboot.org/6889 Tested-by: build bot (Jenkins) Reviewed-by: David Hendricks <dhendrix@chromium.org>
Diffstat (limited to 'payloads/libpayload/libc')
-rw-r--r--payloads/libpayload/libc/Makefile.inc1
-rw-r--r--payloads/libpayload/libc/die.c42
2 files changed, 43 insertions, 0 deletions
diff --git a/payloads/libpayload/libc/Makefile.inc b/payloads/libpayload/libc/Makefile.inc
index 53f3c9b1bb..e2eee15c7c 100644
--- a/payloads/libpayload/libc/Makefile.inc
+++ b/payloads/libpayload/libc/Makefile.inc
@@ -36,6 +36,7 @@ libc-$(CONFIG_LP_LIBC) += args.c strings.c
libc-$(CONFIG_LP_LIBC) += strlcpy.c
libc-$(CONFIG_LP_LIBC) += qsort.c
libc-$(CONFIG_LP_LIBC) += hexdump.c
+libc-$(CONFIG_LP_LIBC) += die.c
# should be moved to coreboot directory
libc-$(CONFIG_LP_LAR) += lar.c
diff --git a/payloads/libpayload/libc/die.c b/payloads/libpayload/libc/die.c
new file mode 100644
index 0000000000..62e98b3b9b
--- /dev/null
+++ b/payloads/libpayload/libc/die.c
@@ -0,0 +1,42 @@
+/*
+ * This file is part of the libpayload project.
+ *
+ * Copyright 2013 Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <libpayload.h>
+
+void die_work(const char *file, const char *func, const int line,
+ const char *fmt, ...)
+{
+ va_list args;
+
+ printf("%s:%d %s(): ", file, line, func);
+ va_start(args, fmt);
+ vprintf(fmt, args);
+ va_end(args);
+ abort();
+}