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888ddfd531
gcc5 is pickier about inline code in header files. Signed-off-by: Trevor Woerner <twoerner@gmail.com>
198 lines
7.2 KiB
Diff
198 lines
7.2 KiB
Diff
From a5e50d6fd7321d0bc60fda2db938c170d09f9dee Mon Sep 17 00:00:00 2001
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From: Trevor Woerner <twoerner@gmail.com>
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Date: Thu, 24 Sep 2015 22:36:02 -0400
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Subject: [PATCH] gcc5 fixes
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gcc5 is pickier about inline functions defined in headers.
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Signed-off-by: Trevor Woerner <twoerner@gmail.com>
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---
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arch/arm/include/asm/io.h | 12 ++++----
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common/board_f.c | 18 ++++++------
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common/main.c | 2 +-
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include/linux/compiler-gcc5.h | 65 +++++++++++++++++++++++++++++++++++++++++++
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4 files changed, 81 insertions(+), 16 deletions(-)
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create mode 100644 include/linux/compiler-gcc5.h
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diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h
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index 6a1f05a..2f6925b 100644
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--- a/arch/arm/include/asm/io.h
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+++ b/arch/arm/include/asm/io.h
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@@ -75,7 +75,7 @@ static inline phys_addr_t virt_to_phys(void * vaddr)
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#define __arch_putw(v,a) (*(volatile unsigned short *)(a) = (v))
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#define __arch_putl(v,a) (*(volatile unsigned int *)(a) = (v))
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-extern inline void __raw_writesb(unsigned long addr, const void *data,
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+static inline void __raw_writesb(unsigned long addr, const void *data,
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int bytelen)
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{
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uint8_t *buf = (uint8_t *)data;
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@@ -83,7 +83,7 @@ extern inline void __raw_writesb(unsigned long addr, const void *data,
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__arch_putb(*buf++, addr);
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}
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-extern inline void __raw_writesw(unsigned long addr, const void *data,
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+static inline void __raw_writesw(unsigned long addr, const void *data,
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int wordlen)
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{
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uint16_t *buf = (uint16_t *)data;
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@@ -91,7 +91,7 @@ extern inline void __raw_writesw(unsigned long addr, const void *data,
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__arch_putw(*buf++, addr);
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}
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-extern inline void __raw_writesl(unsigned long addr, const void *data,
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+static inline void __raw_writesl(unsigned long addr, const void *data,
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int longlen)
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{
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uint32_t *buf = (uint32_t *)data;
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@@ -99,21 +99,21 @@ extern inline void __raw_writesl(unsigned long addr, const void *data,
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__arch_putl(*buf++, addr);
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}
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-extern inline void __raw_readsb(unsigned long addr, void *data, int bytelen)
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+static inline void __raw_readsb(unsigned long addr, void *data, int bytelen)
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{
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uint8_t *buf = (uint8_t *)data;
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while(bytelen--)
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*buf++ = __arch_getb(addr);
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}
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-extern inline void __raw_readsw(unsigned long addr, void *data, int wordlen)
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+static inline void __raw_readsw(unsigned long addr, void *data, int wordlen)
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{
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uint16_t *buf = (uint16_t *)data;
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while(wordlen--)
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*buf++ = __arch_getw(addr);
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}
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-extern inline void __raw_readsl(unsigned long addr, void *data, int longlen)
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+static inline void __raw_readsl(unsigned long addr, void *data, int longlen)
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{
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uint32_t *buf = (uint32_t *)data;
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while(longlen--)
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diff --git a/common/board_f.c b/common/board_f.c
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index f285bad..72b421c 100644
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--- a/common/board_f.c
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+++ b/common/board_f.c
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@@ -78,24 +78,24 @@ DECLARE_GLOBAL_DATA_PTR;
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************************************************************************
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* May be supplied by boards if desired
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*/
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-inline void __coloured_LED_init(void) {}
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+void __coloured_LED_init(void) {}
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void coloured_LED_init(void)
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__attribute__((weak, alias("__coloured_LED_init")));
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-inline void __red_led_on(void) {}
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+void __red_led_on(void) {}
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void red_led_on(void) __attribute__((weak, alias("__red_led_on")));
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-inline void __red_led_off(void) {}
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+void __red_led_off(void) {}
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void red_led_off(void) __attribute__((weak, alias("__red_led_off")));
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-inline void __green_led_on(void) {}
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+void __green_led_on(void) {}
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void green_led_on(void) __attribute__((weak, alias("__green_led_on")));
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-inline void __green_led_off(void) {}
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+void __green_led_off(void) {}
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void green_led_off(void) __attribute__((weak, alias("__green_led_off")));
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-inline void __yellow_led_on(void) {}
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+void __yellow_led_on(void) {}
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void yellow_led_on(void) __attribute__((weak, alias("__yellow_led_on")));
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-inline void __yellow_led_off(void) {}
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+void __yellow_led_off(void) {}
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void yellow_led_off(void) __attribute__((weak, alias("__yellow_led_off")));
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-inline void __blue_led_on(void) {}
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+void __blue_led_on(void) {}
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void blue_led_on(void) __attribute__((weak, alias("__blue_led_on")));
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-inline void __blue_led_off(void) {}
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+void __blue_led_off(void) {}
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void blue_led_off(void) __attribute__((weak, alias("__blue_led_off")));
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/*
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diff --git a/common/main.c b/common/main.c
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index 8b6f274..3312b90 100644
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--- a/common/main.c
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+++ b/common/main.c
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@@ -27,7 +27,7 @@ DECLARE_GLOBAL_DATA_PTR;
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/*
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* Board-specific Platform code can reimplement show_boot_progress () if needed
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*/
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-void inline __show_boot_progress (int val) {}
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+void __show_boot_progress (int val) {}
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void show_boot_progress (int val) __attribute__((weak, alias("__show_boot_progress")));
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#define MAX_DELAY_STOP_STR 32
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diff --git a/include/linux/compiler-gcc5.h b/include/linux/compiler-gcc5.h
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new file mode 100644
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index 0000000..c8c5659
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--- /dev/null
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+++ b/include/linux/compiler-gcc5.h
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@@ -0,0 +1,65 @@
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+#ifndef __LINUX_COMPILER_H
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+#error "Please don't include <linux/compiler-gcc5.h> directly, include <linux/compiler.h> instead."
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+#endif
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+
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+#define __used __attribute__((__used__))
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+#define __must_check __attribute__((warn_unused_result))
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+#define __compiler_offsetof(a, b) __builtin_offsetof(a, b)
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+
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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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+#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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+
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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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+/*
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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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+
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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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+#define __HAVE_BUILTIN_BSWAP32__
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+#define __HAVE_BUILTIN_BSWAP64__
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+#define __HAVE_BUILTIN_BSWAP16__
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+#endif /* CONFIG_ARCH_USE_BUILTIN_BSWAP */
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--
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2.6.0.rc3
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