mirror of https://github.com/hak5/openwrt-owl.git
uboot-imx: bump to 2018.03 which fixes the build issues with fdt64_t redefinitions
* change mx6qsabresd to mx6qsabres to match defconfig name * merge wanboard profiles since there is only one defconfig for the target device * move wanboard options from wandboard.h to defconfig * remove legacy patches Signed-off-by: Vladimir Vid <vladimir.vid@sartura.hr>master
Vladimir Vid
Hauke Mehrtens
parent
87493dac11
commit
856cc6d999
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@ -7,10 +7,10 @@
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include $(TOPDIR)/rules.mk
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PKG_VERSION:=2014.04
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PKG_VERSION:=2018.03
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PKG_RELEASE:=1
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PKG_HASH:=7b6444bd23eb61068c43bd1d44ec7e7bfdbce5cadeca20c833eee186b4d3fd31
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PKG_HASH:=7e7477534409d5368eb1371ffde6820f0f79780a1a1f676161c48442cb303dfd
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include $(INCLUDE_DIR)/u-boot.mk
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include $(INCLUDE_DIR)/package.mk
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@ -20,7 +20,7 @@ define U-Boot/Default
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UBOOT_IMAGE:=u-boot.imx
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endef
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define U-Boot/mx6qsabresd
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define U-Boot/mx6sabresd
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NAME:=SABRE i.MX6Quad board
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endef
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@ -48,31 +48,21 @@ define U-Boot/nitrogen6s1g
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NAME:=Nitrogen6x i.MX6Solo 1GB board
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endef
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define U-Boot/wandboard_dl
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NAME:=Wandboard Dual Lite
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BUILD_DEVICES:=wandboard
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endef
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define U-Boot/wandboard_quad
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NAME:=Wandboard Quad
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BUILD_DEVICES:=wandboard
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endef
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define U-Boot/wandboard_solo
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NAME:=Wandboard Solo
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define U-Boot/wandboard
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NAME:=Wandboard Dual Lite/Quad/Solo
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BUILD_DEVICES:=wandboard
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endef
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UBOOT_TARGETS := \
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mx6qsabresd \
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mx6sabresd \
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nitrogen6dl \
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nitrogen6dl2g \
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nitrogen6q \
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nitrogen6q2g \
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nitrogen6s \
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nitrogen6s1g \
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wandboard_dl \
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wandboard_quad \
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wandboard_solo
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wandboard
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UBOOT_MAKE_FLAGS += u-boot.imx
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$(eval $(call BuildPackage/U-Boot))
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@ -1,72 +0,0 @@
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From: Jeroen Hofstee <jeroen@myspectrum.nl>
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Date: Sun, 22 Jun 2014 21:10:39 +0000 (+0200)
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Subject: ARM:asm:io.h use static inline
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X-Git-Tag: v2014.10-rc2~47
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X-Git-Url: http://git.denx.de/?p=u-boot.git;a=commitdiff_plain;h=8863aa5c984460ce1112d8db895cbf8b13a6ac9d
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ARM:asm:io.h use static inline
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When compiling u-boot with W=1 the extern inline void for
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read* is likely causing the most noise. gcc / clang will
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warn there is never a actual declaration for these functions.
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Instead of declaring these extern make them static inline so
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it is actually declared.
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cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
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Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
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---
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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(v
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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(unsigne
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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(unsigne
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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(unsigne
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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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@ -1,80 +0,0 @@
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From: Jeroen Hofstee <jeroen@myspectrum.nl>
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Date: Wed, 8 Oct 2014 20:57:21 +0000 (+0200)
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Subject: arm: board: use __weak
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X-Git-Tag: v2015.01-rc1~176
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X-Git-Url: http://git.denx.de/?p=u-boot.git;a=commitdiff_plain;h=8590c800ee60e46f15d6085e3c1fed0d6881fc62
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arm: board: use __weak
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Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
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Acked-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
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---
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--- a/arch/arm/lib/board.c
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+++ b/arch/arm/lib/board.c
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@@ -63,25 +63,15 @@ extern void dataflash_print_info(void);
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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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- __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) __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) __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) __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) __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) __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) __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) __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) __attribute__((weak, alias("__blue_led_off")));
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+__weak void coloured_LED_init(void) {}
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+__weak void red_led_on(void) {}
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+__weak void red_led_off(void) {}
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+__weak void green_led_on(void) {}
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+__weak void green_led_off(void) {}
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+__weak void yellow_led_on(void) {}
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+__weak void yellow_led_off(void) {}
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+__weak void blue_led_on(void) {}
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+__weak void blue_led_off(void) {}
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/*
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************************************************************************
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@@ -198,27 +188,21 @@ static int arm_pci_init(void)
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*/
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typedef int (init_fnc_t) (void);
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-void __dram_init_banksize(void)
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+__weak void dram_init_banksize(void)
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{
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gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
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gd->bd->bi_dram[0].size = gd->ram_size;
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}
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-void dram_init_banksize(void)
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- __attribute__((weak, alias("__dram_init_banksize")));
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-int __arch_cpu_init(void)
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+__weak int arch_cpu_init(void)
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{
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return 0;
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}
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-int arch_cpu_init(void)
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- __attribute__((weak, alias("__arch_cpu_init")));
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-int __power_init_board(void)
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+__weak int power_init_board(void)
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{
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return 0;
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}
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-int power_init_board(void)
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- __attribute__((weak, alias("__power_init_board")));
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/* Record the board_init_f() bootstage (after arch_cpu_init()) */
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static int mark_bootstage(void)
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@ -1,27 +0,0 @@
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From: Jeroen Hofstee <jeroen@myspectrum.nl>
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Date: Thu, 26 Jun 2014 18:18:31 +0000 (+0200)
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Subject: common: main.c: make show_boot_progress __weak
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X-Git-Tag: v2014.10-rc1~130
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X-Git-Url: http://git.denx.de/?p=u-boot.git;a=commitdiff_plain;h=3422299dc28fa8257677d03cc1253e3c9bf17e9f
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common: main.c: make show_boot_progress __weak
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This not only looks a bit better it also prevents a
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warning with W=1 (no previous prototype).
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Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
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Acked-by: Simon Glass <sjg@chromium.org>
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---
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--- a/common/main.c
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+++ b/common/main.c
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@@ -27,8 +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) __attribute__((weak, alias("__show_boot_progress")));
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+__weak void show_boot_progress(int val) {}
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#define MAX_DELAY_STOP_STR 32
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@ -1,10 +1,17 @@
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--- a/include/configs/wandboard.h
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+++ b/include/configs/wandboard.h
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@@ -238,4 +238,7 @@
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#define CONFIG_CMD_CACHE
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#endif
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+#define CONFIG_FIT
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+#define CONFIG_FIT_VERBOSE
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+
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#endif /* __CONFIG_H * */
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--- a/configs/wandboard_defconfig
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+++ b/configs/wandboard_defconfig
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@@ -27,7 +27,7 @@ CONFIG_CMD_I2C=y
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CONFIG_CMD_MMC=y
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CONFIG_CMD_SATA=y
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CONFIG_CMD_USB=y
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-CONFIG_CMD_CACHE=y
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+# CONFIG_CMD_CACHE is not set
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CONFIG_CMD_EXT4_WRITE=y
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CONFIG_ENV_IS_IN_MMC=y
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CONFIG_DM=y
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@@ -39,3 +39,5 @@ CONFIG_USB_STORAGE=y
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CONFIG_VIDEO=y
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# CONFIG_VIDEO_SW_CURSOR is not set
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CONFIG_OF_LIBFDT=y
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+CONFIG_FIT=y
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+CONFIG_FIT_VERBOSE=y
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|
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@ -1,480 +0,0 @@
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From fb8ffd7cfc68b3dc44e182356a207d784cb30b34 Mon Sep 17 00:00:00 2001
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From: Masahiro Yamada <yamada.m@jp.panasonic.com>
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Date: Thu, 4 Sep 2014 02:40:58 +0900
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Subject: compiler*.h: sync include/linux/compiler*.h with Linux 3.16
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Copy them from Linux v3.16 tag.
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My main motivation of this commit is to add compiler-clang.h.
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Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
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Cc: Jeroen Hofstee <jeroen@myspectrum.nl>
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---
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include/linux/compiler-clang.h | 12 ++++++
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include/linux/compiler-gcc.h | 57 ++++++++++++++++++--------
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include/linux/compiler-gcc3.h | 20 ++++-----
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include/linux/compiler-gcc4.h | 59 +++++++++++++++++++--------
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include/linux/compiler-intel.h | 40 ++++++++++++++++++
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include/linux/compiler.h | 92 +++++++++++++++++++++++++++++++++++++++++-
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6 files changed, 236 insertions(+), 44 deletions(-)
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create mode 100644 include/linux/compiler-clang.h
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create mode 100644 include/linux/compiler-intel.h
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--- /dev/null
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+++ b/include/linux/compiler-clang.h
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@@ -0,0 +1,12 @@
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+#ifndef __LINUX_COMPILER_H
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+#error "Please don't include <linux/compiler-clang.h> directly, include <linux/compiler.h> instead."
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+#endif
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+
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+/* Some compiler specific definitions are overwritten here
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+ * for Clang compiler
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+ */
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+
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+#ifdef uninitialized_var
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+#undef uninitialized_var
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+#define uninitialized_var(x) x = *(&(x))
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+#endif
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--- a/include/linux/compiler-gcc.h
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+++ b/include/linux/compiler-gcc.h
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@@ -5,6 +5,9 @@
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/*
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* Common definitions for all gcc versions go here.
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*/
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+#define GCC_VERSION (__GNUC__ * 10000 \
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+ + __GNUC_MINOR__ * 100 \
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+ + __GNUC_PATCHLEVEL__)
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/* Optimization barrier */
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@@ -34,9 +37,15 @@
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__asm__ ("" : "=r"(__ptr) : "0"(ptr)); \
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(typeof(ptr)) (__ptr + (off)); })
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+/* Make the optimizer believe the variable can be manipulated arbitrarily. */
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+#define OPTIMIZER_HIDE_VAR(var) __asm__ ("" : "=r" (var) : "0" (var))
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+
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+#ifdef __CHECKER__
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+#define __must_be_array(arr) 0
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+#else
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/* &a[0] degrades to a pointer: a different type from an array */
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-#define __must_be_array(a) \
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- BUILD_BUG_ON_ZERO(__builtin_types_compatible_p(typeof(a), typeof(&a[0])))
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+#define __must_be_array(a) BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0]))
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+#endif
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/*
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* Force always-inline if the user requests it so via the .config,
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@@ -44,15 +53,18 @@
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*/
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#if !defined(CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING) || \
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!defined(CONFIG_OPTIMIZE_INLINING) || (__GNUC__ < 4)
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-# define inline inline __attribute__((always_inline))
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-# define __inline__ __inline__ __attribute__((always_inline))
|
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-# define __inline __inline __attribute__((always_inline))
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+# define inline inline __attribute__((always_inline)) notrace
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+# define __inline__ __inline__ __attribute__((always_inline)) notrace
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+# define __inline __inline __attribute__((always_inline)) notrace
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||||
+#else
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+/* A lot of inline functions can cause havoc with function tracing */
|
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+# define inline inline notrace
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+# define __inline__ __inline__ notrace
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+# define __inline __inline notrace
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#endif
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#define __deprecated __attribute__((deprecated))
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-#ifndef __packed
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-# define __packed __attribute__((packed))
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-#endif
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+#define __packed __attribute__((packed))
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#define __weak __attribute__((weak))
|
||||
|
||||
/*
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||||
@@ -60,8 +72,12 @@
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||||
* naked functions because then mcount is called without stack and frame pointer
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* being set up and there is no chance to restore the lr register to the value
|
||||
* before mcount was called.
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||||
+ *
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||||
+ * The asm() bodies of naked functions often depend on standard calling conventions,
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+ * therefore they must be noinline and noclone. GCC 4.[56] currently fail to enforce
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||||
+ * this, so we must do so ourselves. See GCC PR44290.
|
||||
*/
|
||||
-#define __naked __attribute__((naked)) notrace
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||||
+#define __naked __attribute__((naked)) noinline __noclone notrace
|
||||
|
||||
#define __noreturn __attribute__((noreturn))
|
||||
|
||||
@@ -75,13 +91,10 @@
|
||||
* would be.
|
||||
* [...]
|
||||
*/
|
||||
-#ifndef __pure
|
||||
-# define __pure __attribute__((pure))
|
||||
-#endif
|
||||
-#ifndef __aligned
|
||||
-# define __aligned(x) __attribute__((aligned(x)))
|
||||
-#endif
|
||||
-#define __printf(a,b) __attribute__((format(printf,a,b)))
|
||||
+#define __pure __attribute__((pure))
|
||||
+#define __aligned(x) __attribute__((aligned(x)))
|
||||
+#define __printf(a, b) __attribute__((format(printf, a, b)))
|
||||
+#define __scanf(a, b) __attribute__((format(scanf, a, b)))
|
||||
#define noinline __attribute__((noinline))
|
||||
#define __attribute_const__ __attribute__((__const__))
|
||||
#define __maybe_unused __attribute__((unused))
|
||||
@@ -91,3 +104,15 @@
|
||||
#define _gcc_header(x) __gcc_header(linux/compiler-gcc##x.h)
|
||||
#define gcc_header(x) _gcc_header(x)
|
||||
#include gcc_header(__GNUC__)
|
||||
+
|
||||
+#if !defined(__noclone)
|
||||
+#define __noclone /* not needed */
|
||||
+#endif
|
||||
+
|
||||
+/*
|
||||
+ * A trick to suppress uninitialized variable warning without generating any
|
||||
+ * code
|
||||
+ */
|
||||
+#define uninitialized_var(x) x = x
|
||||
+
|
||||
+#define __always_inline inline __attribute__((always_inline))
|
||||
--- a/include/linux/compiler-gcc3.h
|
||||
+++ b/include/linux/compiler-gcc3.h
|
||||
@@ -2,20 +2,22 @@
|
||||
#error "Please don't include <linux/compiler-gcc3.h> directly, include <linux/compiler.h> instead."
|
||||
#endif
|
||||
|
||||
-#if __GNUC_MINOR__ >= 3
|
||||
+#if GCC_VERSION < 30200
|
||||
+# error Sorry, your compiler is too old - please upgrade it.
|
||||
+#endif
|
||||
+
|
||||
+#if GCC_VERSION >= 30300
|
||||
# define __used __attribute__((__used__))
|
||||
#else
|
||||
# define __used __attribute__((__unused__))
|
||||
#endif
|
||||
|
||||
-#if __GNUC_MINOR__ >= 4
|
||||
+#if GCC_VERSION >= 30400
|
||||
#define __must_check __attribute__((warn_unused_result))
|
||||
#endif
|
||||
|
||||
-/*
|
||||
- * A trick to suppress uninitialized variable warning without generating any
|
||||
- * code
|
||||
- */
|
||||
-#define uninitialized_var(x) x = x
|
||||
-
|
||||
-#define __always_inline inline __attribute__((always_inline))
|
||||
+#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 */
|
||||
--- a/include/linux/compiler-gcc4.h
|
||||
+++ b/include/linux/compiler-gcc4.h
|
||||
@@ -4,7 +4,7 @@
|
||||
|
||||
/* GCC 4.1.[01] miscompiles __weak */
|
||||
#ifdef __KERNEL__
|
||||
-# if __GNUC_MINOR__ == 1 && __GNUC_PATCHLEVEL__ <= 1
|
||||
+# if GCC_VERSION >= 40100 && GCC_VERSION <= 40101
|
||||
# error Your version of gcc miscompiles the __weak directive
|
||||
# endif
|
||||
#endif
|
||||
@@ -12,17 +12,12 @@
|
||||
#define __used __attribute__((__used__))
|
||||
#define __must_check __attribute__((warn_unused_result))
|
||||
#define __compiler_offsetof(a,b) __builtin_offsetof(a,b)
|
||||
-#ifndef __always_inline
|
||||
-# define __always_inline inline __attribute__((always_inline))
|
||||
-#endif
|
||||
|
||||
-/*
|
||||
- * A trick to suppress uninitialized variable warning without generating any
|
||||
- * code
|
||||
- */
|
||||
-#define uninitialized_var(x) x = x
|
||||
+#if GCC_VERSION >= 40100 && GCC_VERSION < 40600
|
||||
+# define __compiletime_object_size(obj) __builtin_object_size(obj, 0)
|
||||
+#endif
|
||||
|
||||
-#if __GNUC_MINOR__ >= 3
|
||||
+#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
|
||||
@@ -38,8 +33,15 @@
|
||||
the kernel context */
|
||||
#define __cold __attribute__((__cold__))
|
||||
|
||||
+#define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__)
|
||||
|
||||
-#if __GNUC_MINOR__ >= 5
|
||||
+#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
|
||||
@@ -50,14 +52,37 @@
|
||||
* unreleased. Really, we need to have autoconf for the kernel.
|
||||
*/
|
||||
#define unreachable() __builtin_unreachable()
|
||||
-#endif
|
||||
|
||||
+/* 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
|
||||
|
||||
-#if __GNUC_MINOR__ > 0
|
||||
-#define __compiletime_object_size(obj) __builtin_object_size(obj, 0)
|
||||
+/*
|
||||
+ * 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.
|
||||
+ * Fixed in GCC 4.8.2 and later versions.
|
||||
+ *
|
||||
+ * (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 __GNUC_MINOR__ >= 4
|
||||
-#define __compiletime_warning(message) __attribute__((warning(message)))
|
||||
-#define __compiletime_error(message) __attribute__((error(message)))
|
||||
+#if GCC_VERSION >= 40800 || (defined(__powerpc__) && GCC_VERSION >= 40600)
|
||||
+#define __HAVE_BUILTIN_BSWAP16__
|
||||
#endif
|
||||
+#endif /* CONFIG_ARCH_USE_BUILTIN_BSWAP */
|
||||
--- /dev/null
|
||||
+++ b/include/linux/compiler-intel.h
|
||||
@@ -0,0 +1,40 @@
|
||||
+#ifndef __LINUX_COMPILER_H
|
||||
+#error "Please don't include <linux/compiler-intel.h> directly, include <linux/compiler.h> instead."
|
||||
+#endif
|
||||
+
|
||||
+#ifdef __ECC
|
||||
+
|
||||
+/* Some compiler specific definitions are overwritten here
|
||||
+ * for Intel ECC compiler
|
||||
+ */
|
||||
+
|
||||
+#include <asm/intrinsics.h>
|
||||
+
|
||||
+/* Intel ECC compiler doesn't support gcc specific asm stmts.
|
||||
+ * It uses intrinsics to do the equivalent things.
|
||||
+ */
|
||||
+#undef RELOC_HIDE
|
||||
+#undef OPTIMIZER_HIDE_VAR
|
||||
+
|
||||
+#define RELOC_HIDE(ptr, off) \
|
||||
+ ({ unsigned long __ptr; \
|
||||
+ __ptr = (unsigned long) (ptr); \
|
||||
+ (typeof(ptr)) (__ptr + (off)); })
|
||||
+
|
||||
+/* This should act as an optimization barrier on var.
|
||||
+ * Given that this compiler does not have inline assembly, a compiler barrier
|
||||
+ * is the best we can do.
|
||||
+ */
|
||||
+#define OPTIMIZER_HIDE_VAR(var) barrier()
|
||||
+
|
||||
+/* Intel ECC compiler doesn't support __builtin_types_compatible_p() */
|
||||
+#define __must_be_array(a) 0
|
||||
+
|
||||
+#endif
|
||||
+
|
||||
+#ifndef __HAVE_BUILTIN_BSWAP16__
|
||||
+/* icc has this, but it's called _bswap16 */
|
||||
+#define __HAVE_BUILTIN_BSWAP16__
|
||||
+#define __builtin_bswap16 _bswap16
|
||||
+#endif
|
||||
+
|
||||
--- a/include/linux/compiler.h
|
||||
+++ b/include/linux/compiler.h
|
||||
@@ -5,16 +5,23 @@
|
||||
|
||||
#ifdef __CHECKER__
|
||||
# define __user __attribute__((noderef, address_space(1)))
|
||||
-# define __kernel /* default address space */
|
||||
+# define __kernel __attribute__((address_space(0)))
|
||||
# define __safe __attribute__((safe))
|
||||
# define __force __attribute__((force))
|
||||
# define __nocast __attribute__((nocast))
|
||||
# define __iomem __attribute__((noderef, address_space(2)))
|
||||
+# define __must_hold(x) __attribute__((context(x,1,1)))
|
||||
# define __acquires(x) __attribute__((context(x,0,1)))
|
||||
# define __releases(x) __attribute__((context(x,1,0)))
|
||||
# define __acquire(x) __context__(x,1)
|
||||
# define __release(x) __context__(x,-1)
|
||||
# define __cond_lock(x,c) ((c) ? ({ __acquire(x); 1; }) : 0)
|
||||
+# define __percpu __attribute__((noderef, address_space(3)))
|
||||
+#ifdef CONFIG_SPARSE_RCU_POINTER
|
||||
+# define __rcu __attribute__((noderef, address_space(4)))
|
||||
+#else
|
||||
+# define __rcu
|
||||
+#endif
|
||||
extern void __chk_user_ptr(const volatile void __user *);
|
||||
extern void __chk_io_ptr(const volatile void __iomem *);
|
||||
#else
|
||||
@@ -27,13 +34,20 @@ extern void __chk_io_ptr(const volatile
|
||||
# define __chk_user_ptr(x) (void)0
|
||||
# define __chk_io_ptr(x) (void)0
|
||||
# define __builtin_warning(x, y...) (1)
|
||||
+# define __must_hold(x)
|
||||
# define __acquires(x)
|
||||
# define __releases(x)
|
||||
# define __acquire(x) (void)0
|
||||
# define __release(x) (void)0
|
||||
# define __cond_lock(x,c) (c)
|
||||
+# define __percpu
|
||||
+# define __rcu
|
||||
#endif
|
||||
|
||||
+/* Indirect macros required for expanded argument pasting, eg. __LINE__. */
|
||||
+#define ___PASTE(a,b) a##b
|
||||
+#define __PASTE(a,b) ___PASTE(a,b)
|
||||
+
|
||||
#ifdef __KERNEL__
|
||||
|
||||
#ifdef __GNUC__
|
||||
@@ -49,6 +63,13 @@ extern void __chk_io_ptr(const volatile
|
||||
# include <linux/compiler-intel.h>
|
||||
#endif
|
||||
|
||||
+/* Clang compiler defines __GNUC__. So we will overwrite implementations
|
||||
+ * coming from above header files here
|
||||
+ */
|
||||
+#ifdef __clang__
|
||||
+#include <linux/compiler-clang.h>
|
||||
+#endif
|
||||
+
|
||||
/*
|
||||
* Generic compiler-dependent macros required for kernel
|
||||
* build go below this comment. Actual compiler/compiler version
|
||||
@@ -156,6 +177,15 @@ void ftrace_likely_update(struct ftrace_
|
||||
(typeof(ptr)) (__ptr + (off)); })
|
||||
#endif
|
||||
|
||||
+#ifndef OPTIMIZER_HIDE_VAR
|
||||
+#define OPTIMIZER_HIDE_VAR(var) barrier()
|
||||
+#endif
|
||||
+
|
||||
+/* Not-quite-unique ID. */
|
||||
+#ifndef __UNIQUE_ID
|
||||
+# define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __LINE__)
|
||||
+#endif
|
||||
+
|
||||
#endif /* __KERNEL__ */
|
||||
|
||||
#endif /* __ASSEMBLY__ */
|
||||
@@ -228,7 +258,7 @@ void ftrace_likely_update(struct ftrace_
|
||||
|
||||
/*
|
||||
* Rather then using noinline to prevent stack consumption, use
|
||||
- * noinline_for_stack instead. For documentaiton reasons.
|
||||
+ * noinline_for_stack instead. For documentation reasons.
|
||||
*/
|
||||
#define noinline_for_stack noinline
|
||||
|
||||
@@ -270,11 +300,20 @@ void ftrace_likely_update(struct ftrace_
|
||||
# define __section(S) __attribute__ ((__section__(#S)))
|
||||
#endif
|
||||
|
||||
+#ifndef __visible
|
||||
+#define __visible
|
||||
+#endif
|
||||
+
|
||||
/* Are two types/vars the same type (ignoring qualifiers)? */
|
||||
#ifndef __same_type
|
||||
# define __same_type(a, b) __builtin_types_compatible_p(typeof(a), typeof(b))
|
||||
#endif
|
||||
|
||||
+/* Is this type a native word size -- useful for atomic operations */
|
||||
+#ifndef __native_word
|
||||
+# define __native_word(t) (sizeof(t) == sizeof(int) || sizeof(t) == sizeof(long))
|
||||
+#endif
|
||||
+
|
||||
/* Compile time object size, -1 for unknown */
|
||||
#ifndef __compiletime_object_size
|
||||
# define __compiletime_object_size(obj) -1
|
||||
@@ -284,7 +323,48 @@ void ftrace_likely_update(struct ftrace_
|
||||
#endif
|
||||
#ifndef __compiletime_error
|
||||
# define __compiletime_error(message)
|
||||
+/*
|
||||
+ * Sparse complains of variable sized arrays due to the temporary variable in
|
||||
+ * __compiletime_assert. Unfortunately we can't just expand it out to make
|
||||
+ * sparse see a constant array size without breaking compiletime_assert on old
|
||||
+ * versions of GCC (e.g. 4.2.4), so hide the array from sparse altogether.
|
||||
+ */
|
||||
+# ifndef __CHECKER__
|
||||
+# define __compiletime_error_fallback(condition) \
|
||||
+ do { ((void)sizeof(char[1 - 2 * condition])); } while (0)
|
||||
+# endif
|
||||
#endif
|
||||
+#ifndef __compiletime_error_fallback
|
||||
+# define __compiletime_error_fallback(condition) do { } while (0)
|
||||
+#endif
|
||||
+
|
||||
+#define __compiletime_assert(condition, msg, prefix, suffix) \
|
||||
+ do { \
|
||||
+ bool __cond = !(condition); \
|
||||
+ extern void prefix ## suffix(void) __compiletime_error(msg); \
|
||||
+ if (__cond) \
|
||||
+ prefix ## suffix(); \
|
||||
+ __compiletime_error_fallback(__cond); \
|
||||
+ } while (0)
|
||||
+
|
||||
+#define _compiletime_assert(condition, msg, prefix, suffix) \
|
||||
+ __compiletime_assert(condition, msg, prefix, suffix)
|
||||
+
|
||||
+/**
|
||||
+ * compiletime_assert - break build and emit msg if condition is false
|
||||
+ * @condition: a compile-time constant condition to check
|
||||
+ * @msg: a message to emit if condition is false
|
||||
+ *
|
||||
+ * In tradition of POSIX assert, this macro will break the build if the
|
||||
+ * supplied condition is *false*, emitting the supplied error message if the
|
||||
+ * compiler has support to do so.
|
||||
+ */
|
||||
+#define compiletime_assert(condition, msg) \
|
||||
+ _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
|
||||
+
|
||||
+#define compiletime_assert_atomic_type(t) \
|
||||
+ compiletime_assert(__native_word(t), \
|
||||
+ "Need native word sized stores/loads for atomicity.")
|
||||
|
||||
/*
|
||||
* Prevent the compiler from merging or refetching accesses. The compiler
|
||||
@@ -300,4 +380,12 @@ void ftrace_likely_update(struct ftrace_
|
||||
*/
|
||||
#define ACCESS_ONCE(x) (*(volatile typeof(x) *)&(x))
|
||||
|
||||
+/* Ignore/forbid kprobes attach on very low level functions marked by this attribute: */
|
||||
+#ifdef CONFIG_KPROBES
|
||||
+# define __kprobes __attribute__((__section__(".kprobes.text")))
|
||||
+# define nokprobe_inline __always_inline
|
||||
+#else
|
||||
+# define __kprobes
|
||||
+# define nokprobe_inline inline
|
||||
+#endif
|
||||
#endif /* __LINUX_COMPILER_H */
|
||||
|
|
@ -1,69 +0,0 @@
|
|||
From 0a5051ce6ebd5f6fad58fd50d6922493d8447f14 Mon Sep 17 00:00:00 2001
|
||||
From: Jeroen Hofstee <jeroen@myspectrum.nl>
|
||||
Date: Thu, 18 Sep 2014 20:10:27 +0200
|
||||
Subject: compiler_gcc: prevent redefining attributes
|
||||
|
||||
The libc headers on FreeBSD and likely related projects as well contain an
|
||||
header file, cdefs.h which provides similiar functionality as linux/compiler.h.
|
||||
It provides compiler independent defines like __weak __packed, to allow
|
||||
compiling with multiple compilers which might have a different syntax for such
|
||||
extension.
|
||||
|
||||
Since that header file is included in multiple standard headers, like stddef.h
|
||||
and stdarg.h, multiple definitions of those defines will be present if both are
|
||||
included. When compiling u-boot the compiler will warn about it hundreds of
|
||||
times since e.g. common.h will include both files indirectly.
|
||||
|
||||
commit 7ea50d52849fe8ffa5b5b74c979b60b1045d6fc9 "compiler_gcc: do not redefine
|
||||
__gnu_attributes" prevented such redefinitions, but this was undone by commit
|
||||
fb8ffd7cfc68b3dc44e182356a207d784cb30b34 "compiler*.h: sync
|
||||
include/linux/compiler*.h with Linux 3.16".
|
||||
|
||||
Add the checks back where necessary to prevent such warnings.
|
||||
|
||||
As the original patch this checkpatch warning is ignored:
|
||||
"WARNING: Adding new packed members is to be done with care"
|
||||
|
||||
Cc: Masahiro Yamada <yamada.m@jp.panasonic.com>
|
||||
Cc: Tom Rini <trini@ti.com>
|
||||
Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
|
||||
Acked-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
|
||||
---
|
||||
include/linux/compiler-gcc.h | 10 ++++++++++
|
||||
1 file changed, 10 insertions(+)
|
||||
|
||||
--- a/include/linux/compiler-gcc.h
|
||||
+++ b/include/linux/compiler-gcc.h
|
||||
@@ -64,8 +64,12 @@
|
||||
#endif
|
||||
|
||||
#define __deprecated __attribute__((deprecated))
|
||||
+#ifndef __packed
|
||||
#define __packed __attribute__((packed))
|
||||
+#endif
|
||||
+#ifndef __weak
|
||||
#define __weak __attribute__((weak))
|
||||
+#endif
|
||||
|
||||
/*
|
||||
* it doesn't make sense on ARM (currently the only user of __naked) to trace
|
||||
@@ -91,8 +95,12 @@
|
||||
* would be.
|
||||
* [...]
|
||||
*/
|
||||
+#ifndef __pure
|
||||
#define __pure __attribute__((pure))
|
||||
+#endif
|
||||
+#ifndef __aligned
|
||||
#define __aligned(x) __attribute__((aligned(x)))
|
||||
+#endif
|
||||
#define __printf(a, b) __attribute__((format(printf, a, b)))
|
||||
#define __scanf(a, b) __attribute__((format(scanf, a, b)))
|
||||
#define noinline __attribute__((noinline))
|
||||
@@ -115,4 +123,6 @@
|
||||
*/
|
||||
#define uninitialized_var(x) x = x
|
||||
|
||||
+#ifndef __always_inline
|
||||
#define __always_inline inline __attribute__((always_inline))
|
||||
+#endif
|
||||
|
|
@ -1,790 +0,0 @@
|
|||
From 9b2c282b348dfe966bbba967dc7a45ce817cce50 Mon Sep 17 00:00:00 2001
|
||||
From: Tom Rini <trini@konsulko.com>
|
||||
Date: Mon, 29 Feb 2016 11:34:15 -0500
|
||||
Subject: compiler*.h: sync include/linux/compiler*.h with Linux 4.5-rc6
|
||||
|
||||
Copy these from Linux v4.5-rc6 tag.
|
||||
|
||||
This is needed so that we can keep up with newer gcc versions. Note
|
||||
that we don't have the uapi/ hierarchy from the kernel so continue to
|
||||
use <linux/types.h>
|
||||
|
||||
Signed-off-by: Tom Rini <trini@konsulko.com>
|
||||
---
|
||||
include/linux/compiler-gcc.h | 259 ++++++++++++++++++++++++++++++++---------
|
||||
include/linux/compiler-gcc3.h | 23 ----
|
||||
include/linux/compiler-gcc4.h | 88 --------------
|
||||
include/linux/compiler-gcc5.h | 65 -----------
|
||||
include/linux/compiler-intel.h | 5 +
|
||||
include/linux/compiler.h | 178 ++++++++++++++++++++++++++--
|
||||
6 files changed, 383 insertions(+), 235 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
|
||||
|
||||
--- a/include/linux/compiler-gcc.h
|
||||
+++ b/include/linux/compiler-gcc.h
|
||||
@@ -5,14 +5,28 @@
|
||||
/*
|
||||
* Common definitions for all gcc versions go here.
|
||||
*/
|
||||
-#define GCC_VERSION (__GNUC__ * 10000 \
|
||||
- + __GNUC_MINOR__ * 100 \
|
||||
- + __GNUC_PATCHLEVEL__)
|
||||
-
|
||||
+#define GCC_VERSION (__GNUC__ * 10000 \
|
||||
+ + __GNUC_MINOR__ * 100 \
|
||||
+ + __GNUC_PATCHLEVEL__)
|
||||
|
||||
/* Optimization barrier */
|
||||
+
|
||||
/* The "volatile" is due to gcc bugs */
|
||||
#define barrier() __asm__ __volatile__("": : :"memory")
|
||||
+/*
|
||||
+ * This version is i.e. to prevent dead stores elimination on @ptr
|
||||
+ * where gcc and llvm may behave differently when otherwise using
|
||||
+ * normal barrier(): while gcc behavior gets along with a normal
|
||||
+ * barrier(), llvm needs an explicit input variable to be assumed
|
||||
+ * clobbered. The issue is as follows: while the inline asm might
|
||||
+ * access any memory it wants, the compiler could have fit all of
|
||||
+ * @ptr into memory registers instead, and since @ptr never escaped
|
||||
+ * from that, it proofed that the inline asm wasn't touching any of
|
||||
+ * it. This version works well with both compilers, i.e. we're telling
|
||||
+ * the compiler that the inline asm absolutely may see the contents
|
||||
+ * of @ptr. See also: https://llvm.org/bugs/show_bug.cgi?id=15495
|
||||
+ */
|
||||
+#define barrier_data(ptr) __asm__ __volatile__("": :"r"(ptr) :"memory")
|
||||
|
||||
/*
|
||||
* This macro obfuscates arithmetic on a variable address so that gcc
|
||||
@@ -32,58 +46,63 @@
|
||||
* the inline assembly constraint from =g to =r, in this particular
|
||||
* case either is valid.
|
||||
*/
|
||||
-#define RELOC_HIDE(ptr, off) \
|
||||
- ({ unsigned long __ptr; \
|
||||
- __asm__ ("" : "=r"(__ptr) : "0"(ptr)); \
|
||||
- (typeof(ptr)) (__ptr + (off)); })
|
||||
+#define RELOC_HIDE(ptr, off) \
|
||||
+({ \
|
||||
+ unsigned long __ptr; \
|
||||
+ __asm__ ("" : "=r"(__ptr) : "0"(ptr)); \
|
||||
+ (typeof(ptr)) (__ptr + (off)); \
|
||||
+})
|
||||
|
||||
/* Make the optimizer believe the variable can be manipulated arbitrarily. */
|
||||
-#define OPTIMIZER_HIDE_VAR(var) __asm__ ("" : "=r" (var) : "0" (var))
|
||||
+#define OPTIMIZER_HIDE_VAR(var) \
|
||||
+ __asm__ ("" : "=r" (var) : "0" (var))
|
||||
|
||||
#ifdef __CHECKER__
|
||||
-#define __must_be_array(arr) 0
|
||||
+#define __must_be_array(a) 0
|
||||
#else
|
||||
/* &a[0] degrades to a pointer: a different type from an array */
|
||||
-#define __must_be_array(a) BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0]))
|
||||
+#define __must_be_array(a) BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0]))
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Force always-inline if the user requests it so via the .config,
|
||||
* or if gcc is too old:
|
||||
*/
|
||||
-#if !defined(CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING) || \
|
||||
+#if !defined(CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING) || \
|
||||
!defined(CONFIG_OPTIMIZE_INLINING) || (__GNUC__ < 4)
|
||||
-# define inline inline __attribute__((always_inline)) notrace
|
||||
-# define __inline__ __inline__ __attribute__((always_inline)) notrace
|
||||
-# define __inline __inline __attribute__((always_inline)) notrace
|
||||
+#define inline inline __attribute__((always_inline)) notrace
|
||||
+#define __inline__ __inline__ __attribute__((always_inline)) notrace
|
||||
+#define __inline __inline __attribute__((always_inline)) notrace
|
||||
#else
|
||||
/* A lot of inline functions can cause havoc with function tracing */
|
||||
-# define inline inline notrace
|
||||
-# define __inline__ __inline__ notrace
|
||||
-# define __inline __inline notrace
|
||||
+#define inline inline notrace
|
||||
+#define __inline__ __inline__ notrace
|
||||
+#define __inline __inline notrace
|
||||
#endif
|
||||
|
||||
-#define __deprecated __attribute__((deprecated))
|
||||
-#ifndef __packed
|
||||
-#define __packed __attribute__((packed))
|
||||
-#endif
|
||||
-#ifndef __weak
|
||||
-#define __weak __attribute__((weak))
|
||||
-#endif
|
||||
+#define __always_inline inline __attribute__((always_inline))
|
||||
+#define noinline __attribute__((noinline))
|
||||
+
|
||||
+#define __deprecated __attribute__((deprecated))
|
||||
+#define __packed __attribute__((packed))
|
||||
+#define __weak __attribute__((weak))
|
||||
+#define __alias(symbol) __attribute__((alias(#symbol)))
|
||||
|
||||
/*
|
||||
- * it doesn't make sense on ARM (currently the only user of __naked) to trace
|
||||
- * naked functions because then mcount is called without stack and frame pointer
|
||||
- * being set up and there is no chance to restore the lr register to the value
|
||||
- * before mcount was called.
|
||||
+ * it doesn't make sense on ARM (currently the only user of __naked)
|
||||
+ * to trace naked functions because then mcount is called without
|
||||
+ * stack and frame pointer being set up and there is no chance to
|
||||
+ * restore the lr register to the value before mcount was called.
|
||||
+ *
|
||||
+ * The asm() bodies of naked functions often depend on standard calling
|
||||
+ * conventions, therefore they must be noinline and noclone.
|
||||
*
|
||||
- * The asm() bodies of naked functions often depend on standard calling conventions,
|
||||
- * therefore they must be noinline and noclone. GCC 4.[56] currently fail to enforce
|
||||
- * this, so we must do so ourselves. See GCC PR44290.
|
||||
+ * GCC 4.[56] currently fail to enforce this, so we must do so ourselves.
|
||||
+ * See GCC PR44290.
|
||||
*/
|
||||
-#define __naked __attribute__((naked)) noinline __noclone notrace
|
||||
+#define __naked __attribute__((naked)) noinline __noclone notrace
|
||||
|
||||
-#define __noreturn __attribute__((noreturn))
|
||||
+#define __noreturn __attribute__((noreturn))
|
||||
|
||||
/*
|
||||
* From the GCC manual:
|
||||
@@ -95,34 +114,170 @@
|
||||
* would be.
|
||||
* [...]
|
||||
*/
|
||||
-#ifndef __pure
|
||||
-#define __pure __attribute__((pure))
|
||||
+#define __pure __attribute__((pure))
|
||||
+#define __aligned(x) __attribute__((aligned(x)))
|
||||
+#define __printf(a, b) __attribute__((format(printf, a, b)))
|
||||
+#define __scanf(a, b) __attribute__((format(scanf, a, b)))
|
||||
+#define __attribute_const__ __attribute__((__const__))
|
||||
+#define __maybe_unused __attribute__((unused))
|
||||
+#define __always_unused __attribute__((unused))
|
||||
+
|
||||
+/* 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
|
||||
-#ifndef __aligned
|
||||
-#define __aligned(x) __attribute__((aligned(x)))
|
||||
+
|
||||
+#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
|
||||
-#define __printf(a, b) __attribute__((format(printf, a, b)))
|
||||
-#define __scanf(a, b) __attribute__((format(scanf, a, b)))
|
||||
-#define noinline __attribute__((noinline))
|
||||
-#define __attribute_const__ __attribute__((__const__))
|
||||
-#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__)
|
||||
+
|
||||
+#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
|
||||
+/*
|
||||
+ * When used with Link Time Optimization, gcc can optimize away C functions or
|
||||
+ * variables which are referenced only from assembly code. __visible tells the
|
||||
+ * optimizer that something else uses this function or variable, thus preventing
|
||||
+ * this.
|
||||
+ */
|
||||
+#define __visible __attribute__((externally_visible))
|
||||
+#endif
|
||||
+
|
||||
+
|
||||
+#if GCC_VERSION >= 40900 && !defined(__CHECKER__)
|
||||
+/*
|
||||
+ * __assume_aligned(n, k): Tell the optimizer that the returned
|
||||
+ * pointer can be assumed to be k modulo n. The second argument is
|
||||
+ * optional (default 0), so we use a variadic macro to make the
|
||||
+ * shorthand.
|
||||
+ *
|
||||
+ * Beware: Do not apply this to functions which may return
|
||||
+ * ERR_PTRs. Also, it is probably unwise to apply it to functions
|
||||
+ * returning extra information in the low bits (but in that case the
|
||||
+ * compiler should see some alignment anyway, when the return value is
|
||||
+ * massaged by 'flags = ptr & 3; ptr &= ~3;').
|
||||
+ */
|
||||
+#define __assume_aligned(a, ...) __attribute__((__assume_aligned__(a, ## __VA_ARGS__)))
|
||||
+#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
|
||||
+
|
||||
+#if GCC_VERSION >= 40902
|
||||
+/*
|
||||
+ * Tell the compiler that address safety instrumentation (KASAN)
|
||||
+ * should not be applied to that function.
|
||||
+ * Conflicts with inlining: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67368
|
||||
+ */
|
||||
+#define __no_sanitize_address __attribute__((no_sanitize_address))
|
||||
+#endif
|
||||
+
|
||||
+#endif /* gcc version >= 40000 specific checks */
|
||||
|
||||
#if !defined(__noclone)
|
||||
#define __noclone /* not needed */
|
||||
#endif
|
||||
|
||||
+#if !defined(__no_sanitize_address)
|
||||
+#define __no_sanitize_address
|
||||
+#endif
|
||||
+
|
||||
/*
|
||||
* A trick to suppress uninitialized variable warning without generating any
|
||||
* code
|
||||
*/
|
||||
#define uninitialized_var(x) x = x
|
||||
-
|
||||
-#ifndef __always_inline
|
||||
-#define __always_inline inline __attribute__((always_inline))
|
||||
-#endif
|
||||
--- a/include/linux/compiler-gcc3.h
|
||||
+++ /dev/null
|
||||
@@ -1,23 +0,0 @@
|
||||
-#ifndef __LINUX_COMPILER_H
|
||||
-#error "Please don't include <linux/compiler-gcc3.h> directly, include <linux/compiler.h> instead."
|
||||
-#endif
|
||||
-
|
||||
-#if GCC_VERSION < 30200
|
||||
-# error Sorry, your compiler is too old - please upgrade it.
|
||||
-#endif
|
||||
-
|
||||
-#if GCC_VERSION >= 30300
|
||||
-# define __used __attribute__((__used__))
|
||||
-#else
|
||||
-# define __used __attribute__((__unused__))
|
||||
-#endif
|
||||
-
|
||||
-#if GCC_VERSION >= 30400
|
||||
-#define __must_check __attribute__((warn_unused_result))
|
||||
-#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 */
|
||||
--- a/include/linux/compiler-gcc4.h
|
||||
+++ /dev/null
|
||||
@@ -1,88 +0,0 @@
|
||||
-#ifndef __LINUX_COMPILER_H
|
||||
-#error "Please don't include <linux/compiler-gcc4.h> directly, include <linux/compiler.h> instead."
|
||||
-#endif
|
||||
-
|
||||
-/* 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 __must_check __attribute__((warn_unused_result))
|
||||
-#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.
|
||||
- * Fixed in GCC 4.8.2 and later versions.
|
||||
- *
|
||||
- * (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 */
|
||||
--- a/include/linux/compiler-gcc5.h
|
||||
+++ /dev/null
|
||||
@@ -1,65 +0,0 @@
|
||||
-#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 */
|
||||
--- a/include/linux/compiler-intel.h
|
||||
+++ b/include/linux/compiler-intel.h
|
||||
@@ -13,9 +13,14 @@
|
||||
/* Intel ECC compiler doesn't support gcc specific asm stmts.
|
||||
* It uses intrinsics to do the equivalent things.
|
||||
*/
|
||||
+#undef barrier
|
||||
+#undef barrier_data
|
||||
#undef RELOC_HIDE
|
||||
#undef OPTIMIZER_HIDE_VAR
|
||||
|
||||
+#define barrier() __memory_barrier()
|
||||
+#define barrier_data(ptr) barrier()
|
||||
+
|
||||
#define RELOC_HIDE(ptr, off) \
|
||||
({ unsigned long __ptr; \
|
||||
__ptr = (unsigned long) (ptr); \
|
||||
--- a/include/linux/compiler.h
|
||||
+++ b/include/linux/compiler.h
|
||||
@@ -17,6 +17,7 @@
|
||||
# define __release(x) __context__(x,-1)
|
||||
# define __cond_lock(x,c) ((c) ? ({ __acquire(x); 1; }) : 0)
|
||||
# define __percpu __attribute__((noderef, address_space(3)))
|
||||
+# define __pmem __attribute__((noderef, address_space(5)))
|
||||
#ifdef CONFIG_SPARSE_RCU_POINTER
|
||||
# define __rcu __attribute__((noderef, address_space(4)))
|
||||
#else
|
||||
@@ -42,6 +43,7 @@ extern void __chk_io_ptr(const volatile
|
||||
# define __cond_lock(x,c) (c)
|
||||
# define __percpu
|
||||
# define __rcu
|
||||
+# define __pmem
|
||||
#endif
|
||||
|
||||
/* Indirect macros required for expanded argument pasting, eg. __LINE__. */
|
||||
@@ -54,7 +56,11 @@ extern void __chk_io_ptr(const volatile
|
||||
#include <linux/compiler-gcc.h>
|
||||
#endif
|
||||
|
||||
+#if defined(CC_USING_HOTPATCH) && !defined(__CHECKER__)
|
||||
+#define notrace __attribute__((hotpatch(0,0)))
|
||||
+#else
|
||||
#define notrace __attribute__((no_instrument_function))
|
||||
+#endif
|
||||
|
||||
/* Intel compiler defines __GNUC__. So we will overwrite implementations
|
||||
* coming from above header files here
|
||||
@@ -138,7 +144,7 @@ void ftrace_likely_update(struct ftrace_
|
||||
*/
|
||||
#define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
|
||||
#define __trace_if(cond) \
|
||||
- if (__builtin_constant_p((cond)) ? !!(cond) : \
|
||||
+ if (__builtin_constant_p(!!(cond)) ? !!(cond) : \
|
||||
({ \
|
||||
int ______r; \
|
||||
static struct ftrace_branch_data \
|
||||
@@ -165,6 +171,10 @@ void ftrace_likely_update(struct ftrace_
|
||||
# define barrier() __memory_barrier()
|
||||
#endif
|
||||
|
||||
+#ifndef barrier_data
|
||||
+# define barrier_data(ptr) barrier()
|
||||
+#endif
|
||||
+
|
||||
/* Unreachable code */
|
||||
#ifndef unreachable
|
||||
# define unreachable() do { } while (1)
|
||||
@@ -186,6 +196,126 @@ void ftrace_likely_update(struct ftrace_
|
||||
# define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __LINE__)
|
||||
#endif
|
||||
|
||||
+#include <linux/types.h>
|
||||
+
|
||||
+#define __READ_ONCE_SIZE \
|
||||
+({ \
|
||||
+ switch (size) { \
|
||||
+ case 1: *(__u8 *)res = *(volatile __u8 *)p; break; \
|
||||
+ case 2: *(__u16 *)res = *(volatile __u16 *)p; break; \
|
||||
+ case 4: *(__u32 *)res = *(volatile __u32 *)p; break; \
|
||||
+ case 8: *(__u64 *)res = *(volatile __u64 *)p; break; \
|
||||
+ default: \
|
||||
+ barrier(); \
|
||||
+ __builtin_memcpy((void *)res, (const void *)p, size); \
|
||||
+ barrier(); \
|
||||
+ } \
|
||||
+})
|
||||
+
|
||||
+static __always_inline
|
||||
+void __read_once_size(const volatile void *p, void *res, int size)
|
||||
+{
|
||||
+ __READ_ONCE_SIZE;
|
||||
+}
|
||||
+
|
||||
+#ifdef CONFIG_KASAN
|
||||
+/*
|
||||
+ * This function is not 'inline' because __no_sanitize_address confilcts
|
||||
+ * with inlining. Attempt to inline it may cause a build failure.
|
||||
+ * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67368
|
||||
+ * '__maybe_unused' allows us to avoid defined-but-not-used warnings.
|
||||
+ */
|
||||
+static __no_sanitize_address __maybe_unused
|
||||
+void __read_once_size_nocheck(const volatile void *p, void *res, int size)
|
||||
+{
|
||||
+ __READ_ONCE_SIZE;
|
||||
+}
|
||||
+#else
|
||||
+static __always_inline
|
||||
+void __read_once_size_nocheck(const volatile void *p, void *res, int size)
|
||||
+{
|
||||
+ __READ_ONCE_SIZE;
|
||||
+}
|
||||
+#endif
|
||||
+
|
||||
+static __always_inline void __write_once_size(volatile void *p, void *res, int size)
|
||||
+{
|
||||
+ switch (size) {
|
||||
+ case 1: *(volatile __u8 *)p = *(__u8 *)res; break;
|
||||
+ case 2: *(volatile __u16 *)p = *(__u16 *)res; break;
|
||||
+ case 4: *(volatile __u32 *)p = *(__u32 *)res; break;
|
||||
+ case 8: *(volatile __u64 *)p = *(__u64 *)res; break;
|
||||
+ default:
|
||||
+ barrier();
|
||||
+ __builtin_memcpy((void *)p, (const void *)res, size);
|
||||
+ barrier();
|
||||
+ }
|
||||
+}
|
||||
+
|
||||
+/*
|
||||
+ * Prevent the compiler from merging or refetching reads or writes. The
|
||||
+ * compiler is also forbidden from reordering successive instances of
|
||||
+ * READ_ONCE, WRITE_ONCE and ACCESS_ONCE (see below), but only when the
|
||||
+ * compiler is aware of some particular ordering. One way to make the
|
||||
+ * compiler aware of ordering is to put the two invocations of READ_ONCE,
|
||||
+ * WRITE_ONCE or ACCESS_ONCE() in different C statements.
|
||||
+ *
|
||||
+ * In contrast to ACCESS_ONCE these two macros will also work on aggregate
|
||||
+ * data types like structs or unions. If the size of the accessed data
|
||||
+ * type exceeds the word size of the machine (e.g., 32 bits or 64 bits)
|
||||
+ * READ_ONCE() and WRITE_ONCE() will fall back to memcpy and print a
|
||||
+ * compile-time warning.
|
||||
+ *
|
||||
+ * Their two major use cases are: (1) Mediating communication between
|
||||
+ * process-level code and irq/NMI handlers, all running on the same CPU,
|
||||
+ * and (2) Ensuring that the compiler does not fold, spindle, or otherwise
|
||||
+ * mutilate accesses that either do not require ordering or that interact
|
||||
+ * with an explicit memory barrier or atomic instruction that provides the
|
||||
+ * required ordering.
|
||||
+ */
|
||||
+
|
||||
+#define __READ_ONCE(x, check) \
|
||||
+({ \
|
||||
+ union { typeof(x) __val; char __c[1]; } __u; \
|
||||
+ if (check) \
|
||||
+ __read_once_size(&(x), __u.__c, sizeof(x)); \
|
||||
+ else \
|
||||
+ __read_once_size_nocheck(&(x), __u.__c, sizeof(x)); \
|
||||
+ __u.__val; \
|
||||
+})
|
||||
+#define READ_ONCE(x) __READ_ONCE(x, 1)
|
||||
+
|
||||
+/*
|
||||
+ * Use READ_ONCE_NOCHECK() instead of READ_ONCE() if you need
|
||||
+ * to hide memory access from KASAN.
|
||||
+ */
|
||||
+#define READ_ONCE_NOCHECK(x) __READ_ONCE(x, 0)
|
||||
+
|
||||
+#define WRITE_ONCE(x, val) \
|
||||
+({ \
|
||||
+ union { typeof(x) __val; char __c[1]; } __u = \
|
||||
+ { .__val = (__force typeof(x)) (val) }; \
|
||||
+ __write_once_size(&(x), __u.__c, sizeof(x)); \
|
||||
+ __u.__val; \
|
||||
+})
|
||||
+
|
||||
+/**
|
||||
+ * smp_cond_acquire() - Spin wait for cond with ACQUIRE ordering
|
||||
+ * @cond: boolean expression to wait for
|
||||
+ *
|
||||
+ * Equivalent to using smp_load_acquire() on the condition variable but employs
|
||||
+ * the control dependency of the wait to reduce the barrier on many platforms.
|
||||
+ *
|
||||
+ * The control dependency provides a LOAD->STORE order, the additional RMB
|
||||
+ * provides LOAD->LOAD order, together they provide LOAD->{LOAD,STORE} order,
|
||||
+ * aka. ACQUIRE.
|
||||
+ */
|
||||
+#define smp_cond_acquire(cond) do { \
|
||||
+ while (!(cond)) \
|
||||
+ cpu_relax(); \
|
||||
+ smp_rmb(); /* ctrl + rmb := acquire */ \
|
||||
+} while (0)
|
||||
+
|
||||
#endif /* __KERNEL__ */
|
||||
|
||||
#endif /* __ASSEMBLY__ */
|
||||
@@ -304,6 +434,14 @@ void ftrace_likely_update(struct ftrace_
|
||||
#define __visible
|
||||
#endif
|
||||
|
||||
+/*
|
||||
+ * Assume alignment of return value.
|
||||
+ */
|
||||
+#ifndef __assume_aligned
|
||||
+#define __assume_aligned(a, ...)
|
||||
+#endif
|
||||
+
|
||||
+
|
||||
/* Are two types/vars the same type (ignoring qualifiers)? */
|
||||
#ifndef __same_type
|
||||
# define __same_type(a, b) __builtin_types_compatible_p(typeof(a), typeof(b))
|
||||
@@ -311,7 +449,7 @@ void ftrace_likely_update(struct ftrace_
|
||||
|
||||
/* Is this type a native word size -- useful for atomic operations */
|
||||
#ifndef __native_word
|
||||
-# define __native_word(t) (sizeof(t) == sizeof(int) || sizeof(t) == sizeof(long))
|
||||
+# define __native_word(t) (sizeof(t) == sizeof(char) || sizeof(t) == sizeof(short) || sizeof(t) == sizeof(int) || sizeof(t) == sizeof(long))
|
||||
#endif
|
||||
|
||||
/* Compile time object size, -1 for unknown */
|
||||
@@ -373,12 +511,38 @@ void ftrace_likely_update(struct ftrace_
|
||||
* to make the compiler aware of ordering is to put the two invocations of
|
||||
* ACCESS_ONCE() in different C statements.
|
||||
*
|
||||
- * This macro does absolutely -nothing- to prevent the CPU from reordering,
|
||||
- * merging, or refetching absolutely anything at any time. Its main intended
|
||||
- * use is to mediate communication between process-level code and irq/NMI
|
||||
- * handlers, all running on the same CPU.
|
||||
+ * ACCESS_ONCE will only work on scalar types. For union types, ACCESS_ONCE
|
||||
+ * on a union member will work as long as the size of the member matches the
|
||||
+ * size of the union and the size is smaller than word size.
|
||||
+ *
|
||||
+ * The major use cases of ACCESS_ONCE used to be (1) Mediating communication
|
||||
+ * between process-level code and irq/NMI handlers, all running on the same CPU,
|
||||
+ * and (2) Ensuring that the compiler does not fold, spindle, or otherwise
|
||||
+ * mutilate accesses that either do not require ordering or that interact
|
||||
+ * with an explicit memory barrier or atomic instruction that provides the
|
||||
+ * required ordering.
|
||||
+ *
|
||||
+ * If possible use READ_ONCE()/WRITE_ONCE() instead.
|
||||
*/
|
||||
-#define ACCESS_ONCE(x) (*(volatile typeof(x) *)&(x))
|
||||
+#define __ACCESS_ONCE(x) ({ \
|
||||
+ __maybe_unused typeof(x) __var = (__force typeof(x)) 0; \
|
||||
+ (volatile typeof(x) *)&(x); })
|
||||
+#define ACCESS_ONCE(x) (*__ACCESS_ONCE(x))
|
||||
+
|
||||
+/**
|
||||
+ * lockless_dereference() - safely load a pointer for later dereference
|
||||
+ * @p: The pointer to load
|
||||
+ *
|
||||
+ * Similar to rcu_dereference(), but for situations where the pointed-to
|
||||
+ * object's lifetime is managed by something other than RCU. That
|
||||
+ * "something other" might be reference counting or simple immortality.
|
||||
+ */
|
||||
+#define lockless_dereference(p) \
|
||||
+({ \
|
||||
+ typeof(p) _________p1 = READ_ONCE(p); \
|
||||
+ smp_read_barrier_depends(); /* Dependency order vs. p above. */ \
|
||||
+ (_________p1); \
|
||||
+})
|
||||
|
||||
/* Ignore/forbid kprobes attach on very low level functions marked by this attribute: */
|
||||
#ifdef CONFIG_KPROBES
|
||||
|
|
@ -1,89 +0,0 @@
|
|||
--- a/include/configs/wandboard.h
|
||||
+++ b/include/configs/wandboard.h
|
||||
@@ -49,7 +49,7 @@
|
||||
#define CONFIG_CMD_BMODE
|
||||
#define CONFIG_CMD_SETEXPR
|
||||
|
||||
-#define CONFIG_BOOTDELAY 5
|
||||
+#define CONFIG_BOOTDELAY 3
|
||||
|
||||
#define CONFIG_SYS_MEMTEST_START 0x10000000
|
||||
#define CONFIG_SYS_MEMTEST_END (CONFIG_SYS_MEMTEST_START + 500 * SZ_1M)
|
||||
@@ -102,13 +102,15 @@
|
||||
|
||||
#if defined(CONFIG_MX6DL) || defined(CONFIG_MX6S)
|
||||
#define CONFIG_DEFAULT_FDT_FILE "imx6dl-wandboard.dtb"
|
||||
+#define CONFIG_OWRT_NAME "openwrt-imx6-imx6dl-wandboard-fit-uImage.itb"
|
||||
#elif defined(CONFIG_MX6Q)
|
||||
#define CONFIG_DEFAULT_FDT_FILE "imx6q-wandboard.dtb"
|
||||
+#define CONFIG_OWRT_NAME "openwrt-imx6-imx6q-wandboard-fit-uImage.itb"
|
||||
#endif
|
||||
|
||||
#define CONFIG_EXTRA_ENV_SETTINGS \
|
||||
"script=boot.scr\0" \
|
||||
- "image=zImage\0" \
|
||||
+ "image=" CONFIG_OWRT_NAME "\0" \
|
||||
"console=ttymxc0\0" \
|
||||
"splashpos=m,m\0" \
|
||||
"fdt_high=0xffffffff\0" \
|
||||
@@ -137,11 +139,11 @@
|
||||
"mmcargs=setenv bootargs console=${console},${baudrate} " \
|
||||
"root=${mmcroot}\0" \
|
||||
"loadbootscript=" \
|
||||
- "fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${script};\0" \
|
||||
+ "ext2load mmc ${mmcdev}:${mmcpart} ${loadaddr} ${script};\0" \
|
||||
"bootscript=echo Running bootscript from mmc ...; " \
|
||||
"source\0" \
|
||||
- "loadimage=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${image}\0" \
|
||||
- "loadfdt=fatload mmc ${mmcdev}:${mmcpart} ${fdt_addr} ${fdt_file}\0" \
|
||||
+ "loaduimage=ext2load mmc ${mmcdev}:${mmcpart} ${loadaddr} ${uimage}\0" \
|
||||
+ "loadfdt=ext2load mmc ${mmcdev}:${mmcpart} ${fdt_addr} ${fdt_file}\0" \
|
||||
"mmcboot=echo Booting from mmc ...; " \
|
||||
"run mmcargs; " \
|
||||
"if test ${boot_fdt} = yes || test ${boot_fdt} = try; then " \
|
||||
@@ -155,31 +157,7 @@
|
||||
"fi; " \
|
||||
"fi; " \
|
||||
"else " \
|
||||
- "bootz; " \
|
||||
- "fi;\0" \
|
||||
- "netargs=setenv bootargs console=${console},${baudrate} " \
|
||||
- "root=/dev/nfs " \
|
||||
- "ip=dhcp nfsroot=${serverip}:${nfsroot},v3,tcp\0" \
|
||||
- "netboot=echo Booting from net ...; " \
|
||||
- "run netargs; " \
|
||||
- "if test ${ip_dyn} = yes; then " \
|
||||
- "setenv get_cmd dhcp; " \
|
||||
- "else " \
|
||||
- "setenv get_cmd tftp; " \
|
||||
- "fi; " \
|
||||
- "${get_cmd} ${image}; " \
|
||||
- "if test ${boot_fdt} = yes || test ${boot_fdt} = try; then " \
|
||||
- "if ${get_cmd} ${fdt_addr} ${fdt_file}; then " \
|
||||
- "bootz ${loadaddr} - ${fdt_addr}; " \
|
||||
- "else " \
|
||||
- "if test ${boot_fdt} = try; then " \
|
||||
- "bootz; " \
|
||||
- "else " \
|
||||
- "echo WARN: Cannot load the DT; " \
|
||||
- "fi; " \
|
||||
- "fi; " \
|
||||
- "else " \
|
||||
- "bootz; " \
|
||||
+ "bootm; " \
|
||||
"fi;\0"
|
||||
|
||||
#define CONFIG_BOOTCOMMAND \
|
||||
@@ -189,10 +167,10 @@
|
||||
"else " \
|
||||
"if run loadimage; then " \
|
||||
"run mmcboot; " \
|
||||
- "else run netboot; " \
|
||||
+ "else echo WARN: Can not boot the image; " \
|
||||
"fi; " \
|
||||
"fi; " \
|
||||
- "else run netboot; fi"
|
||||
+ "fi"
|
||||
|
||||
/* Miscellaneous configurable options */
|
||||
#define CONFIG_SYS_LONGHELP
|
||||
Loading…
Reference in New Issue