[OpenWrt-Devel] [PATCH] uboot-lantiq: fix build with gcc5
Mathias Kresin
openwrt at kresin.me
Tue Dec 8 15:45:27 EST 2015
Signed-off-by: Mathias Kresin <openwrt at kresin.me>
---
.../patches/0045-no_extern_inline.patch | 101 +++++++++++++++++++++
.../uboot-lantiq/patches/0046-no_weak_alias.patch | 28 ++++++
.../patches/0047-add-gcc5-support.patch | 93 +++++++++++++++++++
3 files changed, 222 insertions(+)
create mode 100644 package/boot/uboot-lantiq/patches/0045-no_extern_inline.patch
create mode 100644 package/boot/uboot-lantiq/patches/0046-no_weak_alias.patch
create mode 100644 package/boot/uboot-lantiq/patches/0047-add-gcc5-support.patch
diff --git a/package/boot/uboot-lantiq/patches/0045-no_extern_inline.patch b/package/boot/uboot-lantiq/patches/0045-no_extern_inline.patch
new file mode 100644
index 0000000..45e8b7d
--- /dev/null
+++ b/package/boot/uboot-lantiq/patches/0045-no_extern_inline.patch
@@ -0,0 +1,101 @@
+From b11c5d1dc29e81326d1215011d19377737082aeb Mon Sep 17 00:00:00 2001
+From: Daniel Schwierzeck <daniel.schwierzeck at gmail.com>
+Date: Wed, 1 Jul 2015 16:36:43 +0200
+Subject: [PATCH] MIPS: change 'extern inline' to 'static inline'
+
+The kernel changed it a long time ago. Also this is now broken
+on gcc-5.x.
+
+Reported-by: Andy Kennedy <andy.kennedy at adtran.com>
+Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck at gmail.com>
+---
+ arch/mips/include/asm/io.h | 12 ++++++------
+ arch/mips/include/asm/system.h | 6 +++---
+ 2 files changed, 9 insertions(+), 9 deletions(-)
+
+diff --git a/arch/mips/include/asm/io.h b/arch/mips/include/asm/io.h
+index 3fa37f5..a7ab087 100644
+--- a/arch/mips/include/asm/io.h
++++ b/arch/mips/include/asm/io.h
+@@ -117,7 +117,7 @@ static inline void set_io_port_base(unsigned long base)
+ * Change virtual addresses to physical addresses and vv.
+ * These are trivial on the 1:1 Linux/MIPS mapping
+ */
+-extern inline phys_addr_t virt_to_phys(volatile void * address)
++static inline phys_addr_t virt_to_phys(volatile void * address)
+ {
+ #ifndef CONFIG_64BIT
+ return CPHYSADDR(address);
+@@ -126,7 +126,7 @@ extern inline phys_addr_t virt_to_phys(volatile void * address)
+ #endif
+ }
+
+-extern inline void * phys_to_virt(unsigned long address)
++static inline void * phys_to_virt(unsigned long address)
+ {
+ #ifndef CONFIG_64BIT
+ return (void *)KSEG0ADDR(address);
+@@ -138,7 +138,7 @@ extern inline void * phys_to_virt(unsigned long address)
+ /*
+ * IO bus memory addresses are also 1:1 with the physical address
+ */
+-extern inline unsigned long virt_to_bus(volatile void * address)
++static inline unsigned long virt_to_bus(volatile void * address)
+ {
+ #ifndef CONFIG_64BIT
+ return CPHYSADDR(address);
+@@ -147,7 +147,7 @@ extern inline unsigned long virt_to_bus(volatile void * address)
+ #endif
+ }
+
+-extern inline void * bus_to_virt(unsigned long address)
++static inline void * bus_to_virt(unsigned long address)
+ {
+ #ifndef CONFIG_64BIT
+ return (void *)KSEG0ADDR(address);
+@@ -165,12 +165,12 @@ extern unsigned long isa_slot_offset;
+ extern void * __ioremap(unsigned long offset, unsigned long size, unsigned long flags);
+
+ #if 0
+-extern inline void *ioremap(unsigned long offset, unsigned long size)
++static inline void *ioremap(unsigned long offset, unsigned long size)
+ {
+ return __ioremap(offset, size, _CACHE_UNCACHED);
+ }
+
+-extern inline void *ioremap_nocache(unsigned long offset, unsigned long size)
++static inline void *ioremap_nocache(unsigned long offset, unsigned long size)
+ {
+ return __ioremap(offset, size, _CACHE_UNCACHED);
+ }
+diff --git a/arch/mips/include/asm/system.h b/arch/mips/include/asm/system.h
+index 7a28952..d56f73b 100644
+--- a/arch/mips/include/asm/system.h
++++ b/arch/mips/include/asm/system.h
+@@ -22,7 +22,7 @@
+ #include <linux/kernel.h>
+ #endif
+
+-extern __inline__ void
++static __inline__ void
+ __sti(void)
+ {
+ __asm__ __volatile__(
+@@ -46,7 +46,7 @@ __sti(void)
+ * R4000/R4400 need three nops, the R4600 two nops and the R10000 needs
+ * no nops at all.
+ */
+-extern __inline__ void
++static __inline__ void
+ __cli(void)
+ {
+ __asm__ __volatile__(
+@@ -207,7 +207,7 @@ do { \
+ * For 32 and 64 bit operands we can take advantage of ll and sc.
+ * FIXME: This doesn't work for R3000 machines.
+ */
+-extern __inline__ unsigned long xchg_u32(volatile int * m, unsigned long val)
++static __inline__ unsigned long xchg_u32(volatile int * m, unsigned long val)
+ {
+ #ifdef CONFIG_CPU_HAS_LLSC
+ unsigned long dummy;
diff --git a/package/boot/uboot-lantiq/patches/0046-no_weak_alias.patch b/package/boot/uboot-lantiq/patches/0046-no_weak_alias.patch
new file mode 100644
index 0000000..4701ab1
--- /dev/null
+++ b/package/boot/uboot-lantiq/patches/0046-no_weak_alias.patch
@@ -0,0 +1,28 @@
+From 3422299dc28fa8257677d03cc1253e3c9bf17e9f Mon Sep 17 00:00:00 2001
+From: Jeroen Hofstee <jeroen at myspectrum.nl>
+Date: Thu, 26 Jun 2014 20:18:31 +0200
+Subject: [PATCH] common: main.c: make show_boot_progress __weak
+
+This not only looks a bit better it also prevents a
+warning with W=1 (no previous prototype).
+
+Signed-off-by: Jeroen Hofstee <jeroen at myspectrum.nl>
+Acked-by: Simon Glass <sjg at chromium.org>
+---
+ common/main.c | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+diff --git a/common/main.c b/common/main.c
+index 32618f1..2979fbe 100644
+--- a/common/main.c
++++ b/common/main.c
+@@ -17,8 +17,7 @@ DECLARE_GLOBAL_DATA_PTR;
+ /*
+ * Board-specific Platform code can reimplement show_boot_progress () if needed
+ */
+-void inline __show_boot_progress (int val) {}
+-void show_boot_progress (int val) __attribute__((weak, alias("__show_boot_progress")));
++__weak void show_boot_progress(int val) {}
+
+ static void modem_init(void)
+ {
diff --git a/package/boot/uboot-lantiq/patches/0047-add-gcc5-support.patch b/package/boot/uboot-lantiq/patches/0047-add-gcc5-support.patch
new file mode 100644
index 0000000..4d55f00
--- /dev/null
+++ b/package/boot/uboot-lantiq/patches/0047-add-gcc5-support.patch
@@ -0,0 +1,93 @@
+From 478b02f1a7043b673565075ea5016376f3293b23 Mon Sep 17 00:00:00 2001
+From: Hans de Goede <hdegoede at redhat.com>
+Date: Sat, 7 Feb 2015 22:52:40 +0100
+Subject: [PATCH] Add linux/compiler-gcc5.h to fix builds with gcc5
+
+Add linux/compiler-gcc5/h from the kernel sources at:
+
+commit 5631b8fba640a4ab2f8a954f63a603fa34eda96b
+Author: Steven Noonan <steven at uplinklabs.net>
+Date: Sat Oct 25 15:09:42 2014 -0700
+
+ compiler/gcc4+: Remove inaccurate comment about 'asm goto' miscompiles
+
+Signed-off-by: Hans de Goede <hdegoede at redhat.com>
+---
+ include/linux/compiler-gcc5.h | 65 +++++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 65 insertions(+)
+ create mode 100644 include/linux/compiler-gcc5.h
+
+diff --git a/include/linux/compiler-gcc5.h b/include/linux/compiler-gcc5.h
+new file mode 100644
+index 0000000..c8c5659
+--- /dev/null
++++ b/include/linux/compiler-gcc5.h
+@@ -0,0 +1,65 @@
++#ifndef __LINUX_COMPILER_H
++#error "Please don't include <linux/compiler-gcc5.h> directly, include <linux/compiler.h> instead."
++#endif
++
++#define __used __attribute__((__used__))
++#define __must_check __attribute__((warn_unused_result))
++#define __compiler_offsetof(a, b) __builtin_offsetof(a, b)
++
++/* 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__ */
++
++/*
++ * 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__))
++
++/*
++ * Tell the optimizer that something else uses this function or variable.
++ */
++#define __visible __attribute__((externally_visible))
++
++/*
++ * 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
++#define __HAVE_BUILTIN_BSWAP32__
++#define __HAVE_BUILTIN_BSWAP64__
++#define __HAVE_BUILTIN_BSWAP16__
++#endif /* CONFIG_ARCH_USE_BUILTIN_BSWAP */
+--
+1.7.10.4
+
--
1.9.1
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