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authorLv Zheng <lv.zheng@intel.com>2016-08-04 11:45:47 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2016-08-13 04:16:39 +0300
commit34f3a91b3bf3e886c83309fc9f9c27765c27e16d (patch)
tree375dc414b009cc71e3225866ff7af208da5e630e /include/acpi
parent9fa1cebdbfff3db8953cebca8ee327d75edefc40 (diff)
downloadlinux-34f3a91b3bf3e886c83309fc9f9c27765c27e16d.tar.xz
ACPICA: OSL: Fix a regression that old GCC requires a workaround for strchr()
ACPICA commit be836c36454a624a4fb1d17234080ef8c07993fc There is a GCC false-warning issue on specific GCC versions that "strchr" will be preprocessed and extracted to contain !__buildin_constant_p() checker and it surely is a constant logical value "1" for strchr() arguments. Then -Wlogical-op errorneously reports a warning. The regression is triggered after the standard headers are re-ordered in the EFI porting task. This patch fixes this regression by moving the workaround to a new position after including all other standard headers. Link: https://github.com/acpica/acpica/commit/be836c36 Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/acpi')
-rw-r--r--include/acpi/platform/acenvex.h5
-rw-r--r--include/acpi/platform/acgcc.h11
-rw-r--r--include/acpi/platform/acgccex.h58
3 files changed, 62 insertions, 12 deletions
diff --git a/include/acpi/platform/acenvex.h b/include/acpi/platform/acenvex.h
index 060fb08e643b..b3171b9d6974 100644
--- a/include/acpi/platform/acenvex.h
+++ b/include/acpi/platform/acenvex.h
@@ -69,7 +69,10 @@
#endif
-#if defined(_MSC_VER)
+#if defined(__GNUC__) && !defined(__INTEL_COMPILER)
+#include "acgccex.h"
+
+#elif defined(_MSC_VER)
#include "acmsvcex.h"
#endif
diff --git a/include/acpi/platform/acgcc.h b/include/acpi/platform/acgcc.h
index 9f79e98e549b..8f66aaabadf7 100644
--- a/include/acpi/platform/acgcc.h
+++ b/include/acpi/platform/acgcc.h
@@ -70,17 +70,6 @@
*/
#define ACPI_UNUSED_VAR __attribute__ ((unused))
-/*
- * Some versions of gcc implement strchr() with a buggy macro. So,
- * undef it here. Prevents error messages of this form (usually from the
- * file getopt.c):
- *
- * error: logical '&&' with non-zero constant will always evaluate as true
- */
-#ifdef strchr
-#undef strchr
-#endif
-
/* GCC supports __VA_ARGS__ in macros */
#define COMPILER_VA_MACRO 1
diff --git a/include/acpi/platform/acgccex.h b/include/acpi/platform/acgccex.h
new file mode 100644
index 000000000000..46ead2caada4
--- /dev/null
+++ b/include/acpi/platform/acgccex.h
@@ -0,0 +1,58 @@
+/******************************************************************************
+ *
+ * Name: acgccex.h - Extra GCC specific defines, etc.
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2016, Intel Corp.
+ * All rights reserved.
+ *
+ * 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,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES.
+ */
+
+#ifndef __ACGCCEX_H__
+#define __ACGCCEX_H__
+
+/*
+ * Some versions of gcc implement strchr() with a buggy macro. So,
+ * undef it here. Prevents error messages of this form (usually from the
+ * file getopt.c):
+ *
+ * error: logical '&&' with non-zero constant will always evaluate as true
+ */
+#ifdef strchr
+#undef strchr
+#endif
+
+#endif /* __ACGCCEX_H__ */