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linux: remove gcc6 patches
This commit is contained in:
chewitt
parent
4d4fe5db74
commit
5ddd14b9de
@ -1,166 +0,0 @@
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From cb984d101b30eb7478d32df56a0023e4603cba7f Mon Sep 17 00:00:00 2001
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From: Joe Perches <joe@perches.com>
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Date: Thu, 25 Jun 2015 15:01:02 -0700
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Subject: compiler-gcc: integrate the various compiler-gcc[345].h files
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As gcc major version numbers are going to advance rather rapidly in the
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future, there's no real value in separate files for each compiler
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version.
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Deduplicate some of the macros #defined in each file too.
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Neaten comments using normal kernel commenting style.
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Signed-off-by: Joe Perches <joe@perches.com>
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Cc: Andi Kleen <andi@firstfloor.org>
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Cc: Michal Marek <mmarek@suse.cz>
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Cc: Segher Boessenkool <segher@kernel.crashing.org>
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Cc: Sasha Levin <levinsasha928@gmail.com>
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Cc: Anton Blanchard <anton@samba.org>
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Cc: Alan Modra <amodra@gmail.com>
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Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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---
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include/linux/compiler-gcc.h | 120 ++++++++++++++++++++++++++++++++++++++++--
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include/linux/compiler-gcc3.h | 23 --------
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include/linux/compiler-gcc4.h | 91 --------------------------------
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include/linux/compiler-gcc5.h | 67 -----------------------
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4 files changed, 116 insertions(+), 185 deletions(-)
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delete mode 100644 include/linux/compiler-gcc3.h
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delete mode 100644 include/linux/compiler-gcc4.h
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delete mode 100644 include/linux/compiler-gcc5.h
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diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
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index 5c2c14e..dfaa7b3 100644
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--- a/include/linux/compiler-gcc.h
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+++ b/include/linux/compiler-gcc.h
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@@ -122,10 +122,122 @@
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#define __maybe_unused __attribute__((unused))
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#define __always_unused __attribute__((unused))
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-#define __gcc_header(x) #x
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-#define _gcc_header(x) __gcc_header(linux/compiler-gcc##x.h)
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-#define gcc_header(x) _gcc_header(x)
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-#include gcc_header(__GNUC__)
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+/* gcc version specific checks */
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+
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+#if GCC_VERSION < 30200
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+# error Sorry, your compiler is too old - please upgrade it.
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+#endif
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+
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+#if GCC_VERSION < 30300
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+# define __used __attribute__((__unused__))
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+#else
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+# define __used __attribute__((__used__))
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+#endif
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+
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+#ifdef CONFIG_GCOV_KERNEL
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+# if GCC_VERSION < 30400
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+# error "GCOV profiling support for gcc versions below 3.4 not included"
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+# endif /* __GNUC_MINOR__ */
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+#endif /* CONFIG_GCOV_KERNEL */
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+
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+#if GCC_VERSION >= 30400
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+#define __must_check __attribute__((warn_unused_result))
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+#endif
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+
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+#if GCC_VERSION >= 40000
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+
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+/* GCC 4.1.[01] miscompiles __weak */
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+#ifdef __KERNEL__
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+# if GCC_VERSION >= 40100 && GCC_VERSION <= 40101
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+# error Your version of gcc miscompiles the __weak directive
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+# endif
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+#endif
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+
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+#define __used __attribute__((__used__))
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+#define __compiler_offsetof(a, b) \
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+ __builtin_offsetof(a, b)
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+
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+#if GCC_VERSION >= 40100 && GCC_VERSION < 40600
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+# define __compiletime_object_size(obj) __builtin_object_size(obj, 0)
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+#endif
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+
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+#if GCC_VERSION >= 40300
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+/* Mark functions as cold. gcc will assume any path leading to a call
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+ * to them will be unlikely. This means a lot of manual unlikely()s
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+ * are unnecessary now for any paths leading to the usual suspects
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+ * like BUG(), printk(), panic() etc. [but let's keep them for now for
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+ * older compilers]
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+ *
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+ * Early snapshots of gcc 4.3 don't support this and we can't detect this
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+ * in the preprocessor, but we can live with this because they're unreleased.
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+ * Maketime probing would be overkill here.
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+ *
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+ * gcc also has a __attribute__((__hot__)) to move hot functions into
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+ * a special section, but I don't see any sense in this right now in
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+ * the kernel context
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+ */
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+#define __cold __attribute__((__cold__))
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+
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+#define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__)
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+
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+#ifndef __CHECKER__
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+# define __compiletime_warning(message) __attribute__((warning(message)))
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+# define __compiletime_error(message) __attribute__((error(message)))
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+#endif /* __CHECKER__ */
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+#endif /* GCC_VERSION >= 40300 */
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+
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+#if GCC_VERSION >= 40500
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+/*
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+ * Mark a position in code as unreachable. This can be used to
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+ * suppress control flow warnings after asm blocks that transfer
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+ * control elsewhere.
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+ *
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+ * Early snapshots of gcc 4.5 don't support this and we can't detect
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+ * this in the preprocessor, but we can live with this because they're
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+ * unreleased. Really, we need to have autoconf for the kernel.
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+ */
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+#define unreachable() __builtin_unreachable()
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+
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+/* Mark a function definition as prohibited from being cloned. */
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+#define __noclone __attribute__((__noclone__))
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+
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+#endif /* GCC_VERSION >= 40500 */
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+
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+#if GCC_VERSION >= 40600
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+/*
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+ * Tell the optimizer that something else uses this function or variable.
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+ */
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+#define __visible __attribute__((externally_visible))
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+#endif
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+
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+/*
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+ * GCC 'asm goto' miscompiles certain code sequences:
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+ *
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+ * http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58670
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+ *
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+ * Work it around via a compiler barrier quirk suggested by Jakub Jelinek.
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+ *
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+ * (asm goto is automatically volatile - the naming reflects this.)
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+ */
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+#define asm_volatile_goto(x...) do { asm goto(x); asm (""); } while (0)
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+
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+#ifdef CONFIG_ARCH_USE_BUILTIN_BSWAP
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+#if GCC_VERSION >= 40400
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+#define __HAVE_BUILTIN_BSWAP32__
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+#define __HAVE_BUILTIN_BSWAP64__
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+#endif
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+#if GCC_VERSION >= 40800 || (defined(__powerpc__) && GCC_VERSION >= 40600)
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+#define __HAVE_BUILTIN_BSWAP16__
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+#endif
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+#endif /* CONFIG_ARCH_USE_BUILTIN_BSWAP */
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+
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+#if GCC_VERSION >= 50000
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+#define KASAN_ABI_VERSION 4
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+#elif GCC_VERSION >= 40902
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+#define KASAN_ABI_VERSION 3
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+#endif
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+
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+#endif /* gcc version >= 40000 specific checks */
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#if !defined(__noclone)
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#define __noclone /* not needed */
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--
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cgit v0.12
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@ -1,166 +0,0 @@
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From cb984d101b30eb7478d32df56a0023e4603cba7f Mon Sep 17 00:00:00 2001
|
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From: Joe Perches <joe@perches.com>
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Date: Thu, 25 Jun 2015 15:01:02 -0700
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Subject: compiler-gcc: integrate the various compiler-gcc[345].h files
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|
||||||
|
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As gcc major version numbers are going to advance rather rapidly in the
|
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||||||
future, there's no real value in separate files for each compiler
|
|
||||||
version.
|
|
||||||
|
|
||||||
Deduplicate some of the macros #defined in each file too.
|
|
||||||
|
|
||||||
Neaten comments using normal kernel commenting style.
|
|
||||||
|
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||||||
Signed-off-by: Joe Perches <joe@perches.com>
|
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||||||
Cc: Andi Kleen <andi@firstfloor.org>
|
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||||||
Cc: Michal Marek <mmarek@suse.cz>
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||||||
Cc: Segher Boessenkool <segher@kernel.crashing.org>
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Cc: Sasha Levin <levinsasha928@gmail.com>
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Cc: Anton Blanchard <anton@samba.org>
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Cc: Alan Modra <amodra@gmail.com>
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Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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---
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include/linux/compiler-gcc.h | 120 ++++++++++++++++++++++++++++++++++++++++--
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include/linux/compiler-gcc3.h | 23 --------
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include/linux/compiler-gcc4.h | 91 --------------------------------
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include/linux/compiler-gcc5.h | 67 -----------------------
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4 files changed, 116 insertions(+), 185 deletions(-)
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delete mode 100644 include/linux/compiler-gcc3.h
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delete mode 100644 include/linux/compiler-gcc4.h
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delete mode 100644 include/linux/compiler-gcc5.h
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diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
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index 5c2c14e..dfaa7b3 100644
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--- a/include/linux/compiler-gcc.h
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+++ b/include/linux/compiler-gcc.h
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@@ -122,10 +122,122 @@
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#define __maybe_unused __attribute__((unused))
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#define __always_unused __attribute__((unused))
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-#define __gcc_header(x) #x
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-#define _gcc_header(x) __gcc_header(linux/compiler-gcc##x.h)
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-#define gcc_header(x) _gcc_header(x)
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-#include gcc_header(__GNUC__)
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+/* gcc version specific checks */
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+
|
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+#if GCC_VERSION < 30200
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+# error Sorry, your compiler is too old - please upgrade it.
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+#endif
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+
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+#if GCC_VERSION < 30300
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+# define __used __attribute__((__unused__))
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+#else
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+# define __used __attribute__((__used__))
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+#endif
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+
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+#ifdef CONFIG_GCOV_KERNEL
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+# if GCC_VERSION < 30400
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+# error "GCOV profiling support for gcc versions below 3.4 not included"
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+# endif /* __GNUC_MINOR__ */
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+#endif /* CONFIG_GCOV_KERNEL */
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+
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+#if GCC_VERSION >= 30400
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+#define __must_check __attribute__((warn_unused_result))
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+#endif
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+
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+#if GCC_VERSION >= 40000
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+
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+/* GCC 4.1.[01] miscompiles __weak */
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+#ifdef __KERNEL__
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+# if GCC_VERSION >= 40100 && GCC_VERSION <= 40101
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+# error Your version of gcc miscompiles the __weak directive
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+# endif
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+#endif
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+
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+#define __used __attribute__((__used__))
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+#define __compiler_offsetof(a, b) \
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+ __builtin_offsetof(a, b)
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+
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+#if GCC_VERSION >= 40100 && GCC_VERSION < 40600
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+# define __compiletime_object_size(obj) __builtin_object_size(obj, 0)
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+#endif
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+
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+#if GCC_VERSION >= 40300
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+/* Mark functions as cold. gcc will assume any path leading to a call
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+ * to them will be unlikely. This means a lot of manual unlikely()s
|
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+ * are unnecessary now for any paths leading to the usual suspects
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+ * like BUG(), printk(), panic() etc. [but let's keep them for now for
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+ * older compilers]
|
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+ *
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+ * Early snapshots of gcc 4.3 don't support this and we can't detect this
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+ * in the preprocessor, but we can live with this because they're unreleased.
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+ * Maketime probing would be overkill here.
|
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+ *
|
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+ * gcc also has a __attribute__((__hot__)) to move hot functions into
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+ * a special section, but I don't see any sense in this right now in
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+ * the kernel context
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+ */
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+#define __cold __attribute__((__cold__))
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+
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+#define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__)
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+
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+#ifndef __CHECKER__
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+# define __compiletime_warning(message) __attribute__((warning(message)))
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+# define __compiletime_error(message) __attribute__((error(message)))
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+#endif /* __CHECKER__ */
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+#endif /* GCC_VERSION >= 40300 */
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+
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+#if GCC_VERSION >= 40500
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+/*
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+ * Mark a position in code as unreachable. This can be used to
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+ * suppress control flow warnings after asm blocks that transfer
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+ * control elsewhere.
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+ *
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+ * Early snapshots of gcc 4.5 don't support this and we can't detect
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+ * this in the preprocessor, but we can live with this because they're
|
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+ * unreleased. Really, we need to have autoconf for the kernel.
|
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+ */
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+#define unreachable() __builtin_unreachable()
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+
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+/* Mark a function definition as prohibited from being cloned. */
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+#define __noclone __attribute__((__noclone__))
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+
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+#endif /* GCC_VERSION >= 40500 */
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+
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+#if GCC_VERSION >= 40600
|
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+/*
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+ * Tell the optimizer that something else uses this function or variable.
|
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+ */
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+#define __visible __attribute__((externally_visible))
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||||||
+#endif
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+
|
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+/*
|
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+ * GCC 'asm goto' miscompiles certain code sequences:
|
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+ *
|
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+ * http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58670
|
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+ *
|
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+ * Work it around via a compiler barrier quirk suggested by Jakub Jelinek.
|
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+ *
|
|
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+ * (asm goto is automatically volatile - the naming reflects this.)
|
|
||||||
+ */
|
|
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+#define asm_volatile_goto(x...) do { asm goto(x); asm (""); } while (0)
|
|
||||||
+
|
|
||||||
+#ifdef CONFIG_ARCH_USE_BUILTIN_BSWAP
|
|
||||||
+#if GCC_VERSION >= 40400
|
|
||||||
+#define __HAVE_BUILTIN_BSWAP32__
|
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+#define __HAVE_BUILTIN_BSWAP64__
|
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||||||
+#endif
|
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+#if GCC_VERSION >= 40800 || (defined(__powerpc__) && GCC_VERSION >= 40600)
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+#define __HAVE_BUILTIN_BSWAP16__
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+#endif
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+#endif /* CONFIG_ARCH_USE_BUILTIN_BSWAP */
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+
|
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+#if GCC_VERSION >= 50000
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+#define KASAN_ABI_VERSION 4
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+#elif GCC_VERSION >= 40902
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+#define KASAN_ABI_VERSION 3
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||||||
+#endif
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+
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+#endif /* gcc version >= 40000 specific checks */
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#if !defined(__noclone)
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#define __noclone /* not needed */
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||||||
--
|
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||||||
cgit v0.12
|
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||||||
|
|
||||||
@ -1,166 +0,0 @@
|
|||||||
From cb984d101b30eb7478d32df56a0023e4603cba7f Mon Sep 17 00:00:00 2001
|
|
||||||
From: Joe Perches <joe@perches.com>
|
|
||||||
Date: Thu, 25 Jun 2015 15:01:02 -0700
|
|
||||||
Subject: compiler-gcc: integrate the various compiler-gcc[345].h files
|
|
||||||
|
|
||||||
As gcc major version numbers are going to advance rather rapidly in the
|
|
||||||
future, there's no real value in separate files for each compiler
|
|
||||||
version.
|
|
||||||
|
|
||||||
Deduplicate some of the macros #defined in each file too.
|
|
||||||
|
|
||||||
Neaten comments using normal kernel commenting style.
|
|
||||||
|
|
||||||
Signed-off-by: Joe Perches <joe@perches.com>
|
|
||||||
Cc: Andi Kleen <andi@firstfloor.org>
|
|
||||||
Cc: Michal Marek <mmarek@suse.cz>
|
|
||||||
Cc: Segher Boessenkool <segher@kernel.crashing.org>
|
|
||||||
Cc: Sasha Levin <levinsasha928@gmail.com>
|
|
||||||
Cc: Anton Blanchard <anton@samba.org>
|
|
||||||
Cc: Alan Modra <amodra@gmail.com>
|
|
||||||
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
||||||
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
||||||
---
|
|
||||||
include/linux/compiler-gcc.h | 120 ++++++++++++++++++++++++++++++++++++++++--
|
|
||||||
include/linux/compiler-gcc3.h | 23 --------
|
|
||||||
include/linux/compiler-gcc4.h | 91 --------------------------------
|
|
||||||
include/linux/compiler-gcc5.h | 67 -----------------------
|
|
||||||
4 files changed, 116 insertions(+), 185 deletions(-)
|
|
||||||
delete mode 100644 include/linux/compiler-gcc3.h
|
|
||||||
delete mode 100644 include/linux/compiler-gcc4.h
|
|
||||||
delete mode 100644 include/linux/compiler-gcc5.h
|
|
||||||
|
|
||||||
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
|
|
||||||
index 5c2c14e..dfaa7b3 100644
|
|
||||||
--- a/include/linux/compiler-gcc.h
|
|
||||||
+++ b/include/linux/compiler-gcc.h
|
|
||||||
@@ -122,10 +122,122 @@
|
|
||||||
#define __maybe_unused __attribute__((unused))
|
|
||||||
#define __always_unused __attribute__((unused))
|
|
||||||
|
|
||||||
-#define __gcc_header(x) #x
|
|
||||||
-#define _gcc_header(x) __gcc_header(linux/compiler-gcc##x.h)
|
|
||||||
-#define gcc_header(x) _gcc_header(x)
|
|
||||||
-#include gcc_header(__GNUC__)
|
|
||||||
+/* gcc version specific checks */
|
|
||||||
+
|
|
||||||
+#if GCC_VERSION < 30200
|
|
||||||
+# error Sorry, your compiler is too old - please upgrade it.
|
|
||||||
+#endif
|
|
||||||
+
|
|
||||||
+#if GCC_VERSION < 30300
|
|
||||||
+# define __used __attribute__((__unused__))
|
|
||||||
+#else
|
|
||||||
+# define __used __attribute__((__used__))
|
|
||||||
+#endif
|
|
||||||
+
|
|
||||||
+#ifdef CONFIG_GCOV_KERNEL
|
|
||||||
+# if GCC_VERSION < 30400
|
|
||||||
+# error "GCOV profiling support for gcc versions below 3.4 not included"
|
|
||||||
+# endif /* __GNUC_MINOR__ */
|
|
||||||
+#endif /* CONFIG_GCOV_KERNEL */
|
|
||||||
+
|
|
||||||
+#if GCC_VERSION >= 30400
|
|
||||||
+#define __must_check __attribute__((warn_unused_result))
|
|
||||||
+#endif
|
|
||||||
+
|
|
||||||
+#if GCC_VERSION >= 40000
|
|
||||||
+
|
|
||||||
+/* GCC 4.1.[01] miscompiles __weak */
|
|
||||||
+#ifdef __KERNEL__
|
|
||||||
+# if GCC_VERSION >= 40100 && GCC_VERSION <= 40101
|
|
||||||
+# error Your version of gcc miscompiles the __weak directive
|
|
||||||
+# endif
|
|
||||||
+#endif
|
|
||||||
+
|
|
||||||
+#define __used __attribute__((__used__))
|
|
||||||
+#define __compiler_offsetof(a, b) \
|
|
||||||
+ __builtin_offsetof(a, b)
|
|
||||||
+
|
|
||||||
+#if GCC_VERSION >= 40100 && GCC_VERSION < 40600
|
|
||||||
+# define __compiletime_object_size(obj) __builtin_object_size(obj, 0)
|
|
||||||
+#endif
|
|
||||||
+
|
|
||||||
+#if GCC_VERSION >= 40300
|
|
||||||
+/* Mark functions as cold. gcc will assume any path leading to a call
|
|
||||||
+ * to them will be unlikely. This means a lot of manual unlikely()s
|
|
||||||
+ * are unnecessary now for any paths leading to the usual suspects
|
|
||||||
+ * like BUG(), printk(), panic() etc. [but let's keep them for now for
|
|
||||||
+ * older compilers]
|
|
||||||
+ *
|
|
||||||
+ * Early snapshots of gcc 4.3 don't support this and we can't detect this
|
|
||||||
+ * in the preprocessor, but we can live with this because they're unreleased.
|
|
||||||
+ * Maketime probing would be overkill here.
|
|
||||||
+ *
|
|
||||||
+ * gcc also has a __attribute__((__hot__)) to move hot functions into
|
|
||||||
+ * a special section, but I don't see any sense in this right now in
|
|
||||||
+ * the kernel context
|
|
||||||
+ */
|
|
||||||
+#define __cold __attribute__((__cold__))
|
|
||||||
+
|
|
||||||
+#define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__)
|
|
||||||
+
|
|
||||||
+#ifndef __CHECKER__
|
|
||||||
+# define __compiletime_warning(message) __attribute__((warning(message)))
|
|
||||||
+# define __compiletime_error(message) __attribute__((error(message)))
|
|
||||||
+#endif /* __CHECKER__ */
|
|
||||||
+#endif /* GCC_VERSION >= 40300 */
|
|
||||||
+
|
|
||||||
+#if GCC_VERSION >= 40500
|
|
||||||
+/*
|
|
||||||
+ * Mark a position in code as unreachable. This can be used to
|
|
||||||
+ * suppress control flow warnings after asm blocks that transfer
|
|
||||||
+ * control elsewhere.
|
|
||||||
+ *
|
|
||||||
+ * Early snapshots of gcc 4.5 don't support this and we can't detect
|
|
||||||
+ * this in the preprocessor, but we can live with this because they're
|
|
||||||
+ * unreleased. Really, we need to have autoconf for the kernel.
|
|
||||||
+ */
|
|
||||||
+#define unreachable() __builtin_unreachable()
|
|
||||||
+
|
|
||||||
+/* Mark a function definition as prohibited from being cloned. */
|
|
||||||
+#define __noclone __attribute__((__noclone__))
|
|
||||||
+
|
|
||||||
+#endif /* GCC_VERSION >= 40500 */
|
|
||||||
+
|
|
||||||
+#if GCC_VERSION >= 40600
|
|
||||||
+/*
|
|
||||||
+ * Tell the optimizer that something else uses this function or variable.
|
|
||||||
+ */
|
|
||||||
+#define __visible __attribute__((externally_visible))
|
|
||||||
+#endif
|
|
||||||
+
|
|
||||||
+/*
|
|
||||||
+ * GCC 'asm goto' miscompiles certain code sequences:
|
|
||||||
+ *
|
|
||||||
+ * http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58670
|
|
||||||
+ *
|
|
||||||
+ * Work it around via a compiler barrier quirk suggested by Jakub Jelinek.
|
|
||||||
+ *
|
|
||||||
+ * (asm goto is automatically volatile - the naming reflects this.)
|
|
||||||
+ */
|
|
||||||
+#define asm_volatile_goto(x...) do { asm goto(x); asm (""); } while (0)
|
|
||||||
+
|
|
||||||
+#ifdef CONFIG_ARCH_USE_BUILTIN_BSWAP
|
|
||||||
+#if GCC_VERSION >= 40400
|
|
||||||
+#define __HAVE_BUILTIN_BSWAP32__
|
|
||||||
+#define __HAVE_BUILTIN_BSWAP64__
|
|
||||||
+#endif
|
|
||||||
+#if GCC_VERSION >= 40800 || (defined(__powerpc__) && GCC_VERSION >= 40600)
|
|
||||||
+#define __HAVE_BUILTIN_BSWAP16__
|
|
||||||
+#endif
|
|
||||||
+#endif /* CONFIG_ARCH_USE_BUILTIN_BSWAP */
|
|
||||||
+
|
|
||||||
+#if GCC_VERSION >= 50000
|
|
||||||
+#define KASAN_ABI_VERSION 4
|
|
||||||
+#elif GCC_VERSION >= 40902
|
|
||||||
+#define KASAN_ABI_VERSION 3
|
|
||||||
+#endif
|
|
||||||
+
|
|
||||||
+#endif /* gcc version >= 40000 specific checks */
|
|
||||||
|
|
||||||
#if !defined(__noclone)
|
|
||||||
#define __noclone /* not needed */
|
|
||||||
--
|
|
||||||
cgit v0.12
|
|
||||||
|
|
||||||
Loading…
x
Reference in New Issue
Block a user