From: Andreas Bießmann Date: Thu, 18 Apr 2013 22:48:50 +0000 (+0000) Subject: lib: consolidate hang() X-Git-Url: http://git.dujemihanovic.xyz/img/sics.gif?a=commitdiff_plain;h=d2eae43ba803cff75b44a07d08d718ecdecdee94;p=u-boot.git lib: consolidate hang() Delete all occurrences of hang() and provide a generic function. Signed-off-by: Andreas Bießmann Acked-by: Albert ARIBAUD [trini: Modify check around puts() in hang.c slightly] Signed-off-by: Tom Rini --- diff --git a/arch/arm/cpu/arm926ejs/mxs/spl_boot.c b/arch/arm/cpu/arm926ejs/mxs/spl_boot.c index 7e7044033e..ed525e58f3 100644 --- a/arch/arm/cpu/arm926ejs/mxs/spl_boot.c +++ b/arch/arm/cpu/arm926ejs/mxs/spl_boot.c @@ -148,10 +148,3 @@ inline void board_init_r(gd_t *id, ulong dest_addr) for (;;) ; } - -void hang(void) __attribute__ ((noreturn)); -void hang(void) -{ - for (;;) - ; -} diff --git a/arch/arm/cpu/arm926ejs/spear/spl.c b/arch/arm/cpu/arm926ejs/spear/spl.c index 48e6efbc47..0101c5dd12 100644 --- a/arch/arm/cpu/arm926ejs/spear/spl.c +++ b/arch/arm/cpu/arm926ejs/spear/spl.c @@ -31,13 +31,6 @@ #include #include -inline void hang(void) -{ - serial_puts("### ERROR ### Please RESET the board ###\n"); - for (;;) - ; -} - static void ddr_clock_init(void) { struct misc_regs *misc_p = (struct misc_regs *)CONFIG_SPEAR_MISCBASE; diff --git a/arch/arm/lib/board.c b/arch/arm/lib/board.c index 0521178ac3..09ab4ad736 100644 --- a/arch/arm/lib/board.c +++ b/arch/arm/lib/board.c @@ -706,9 +706,3 @@ void board_init_r(gd_t *id, ulong dest_addr) /* NOTREACHED - no way out of command loop except booting */ } - -void hang(void) -{ - puts("### ERROR ### Please RESET the board ###\n"); - for (;;); -} diff --git a/arch/avr32/lib/board.c b/arch/avr32/lib/board.c index 57e07dfb89..ccf862a7fb 100644 --- a/arch/avr32/lib/board.c +++ b/arch/avr32/lib/board.c @@ -120,11 +120,6 @@ static int display_banner (void) return 0; } -void hang(void) -{ - for (;;) ; -} - static int display_dram_config (void) { int i; diff --git a/arch/blackfin/lib/board.c b/arch/blackfin/lib/board.c index 75b6c463d8..ccea3b9fb1 100644 --- a/arch/blackfin/lib/board.c +++ b/arch/blackfin/lib/board.c @@ -432,17 +432,3 @@ void board_init_r(gd_t * id, ulong dest_addr) for (;;) main_loop(); } - -void hang(void) -{ -#ifdef CONFIG_STATUS_LED - status_led_set(STATUS_LED_BOOT, STATUS_LED_OFF); - status_led_set(STATUS_LED_CRASH, STATUS_LED_BLINKING); -#endif - puts("### ERROR ### Please RESET the board ###\n"); - while (1) - /* If a JTAG emulator is hooked up, we'll automatically trigger - * a breakpoint in it. If one isn't, this is just a NOP. - */ - asm("emuexcpt;"); -} diff --git a/arch/m68k/lib/board.c b/arch/m68k/lib/board.c index adaccfe69e..b2e3068364 100644 --- a/arch/m68k/lib/board.c +++ b/arch/m68k/lib/board.c @@ -663,10 +663,3 @@ void board_init_r (gd_t *id, ulong dest_addr) /* NOTREACHED - no way out of command loop except booting */ } - - -void hang(void) -{ - puts ("### ERROR ### Please RESET the board ###\n"); - for (;;); -} diff --git a/arch/microblaze/lib/board.c b/arch/microblaze/lib/board.c index 3a6d81aa09..bb402432c6 100644 --- a/arch/microblaze/lib/board.c +++ b/arch/microblaze/lib/board.c @@ -195,10 +195,3 @@ void board_init_f(ulong not_used) main_loop(); } } - -void hang(void) -{ - puts("### ERROR ### Please RESET the board ###\n"); - for (;;) - ; -} diff --git a/arch/mips/lib/board.c b/arch/mips/lib/board.c index f19f198ae9..fac791520e 100644 --- a/arch/mips/lib/board.c +++ b/arch/mips/lib/board.c @@ -344,10 +344,3 @@ void board_init_r(gd_t *id, ulong dest_addr) /* NOTREACHED - no way out of command loop except booting */ } - -void hang(void) -{ - puts("### ERROR ### Please RESET the board ###\n"); - for (;;) - ; -} diff --git a/arch/nds32/lib/board.c b/arch/nds32/lib/board.c index a7d27fc7f8..57af1bee9b 100644 --- a/arch/nds32/lib/board.c +++ b/arch/nds32/lib/board.c @@ -404,10 +404,3 @@ void board_init_r(gd_t *id, ulong dest_addr) /* NOTREACHED - no way out of command loop except booting */ } - -void hang(void) -{ - puts("### ERROR ### Please RESET the board ###\n"); - for (;;) - ; -} diff --git a/arch/nios2/lib/board.c b/arch/nios2/lib/board.c index 0f2bc7e8ae..f430ef082a 100644 --- a/arch/nios2/lib/board.c +++ b/arch/nios2/lib/board.c @@ -162,14 +162,3 @@ void board_init(void) main_loop(); } } - - -/***********************************************************************/ - -void hang(void) -{ - disable_interrupts(); - puts("### ERROR ### Please reset board ###\n"); - for (;;) - ; -} diff --git a/arch/openrisc/lib/board.c b/arch/openrisc/lib/board.c index 85aa1899be..630e45fdb1 100644 --- a/arch/openrisc/lib/board.c +++ b/arch/openrisc/lib/board.c @@ -154,15 +154,3 @@ void board_init(void) main_loop(); } } - - -/***********************************************************************/ - -void hang(void) -{ - disable_interrupts(); - puts("### ERROR ### Please reset board ###\n"); - - for (;;) - ; -} diff --git a/arch/powerpc/lib/board.c b/arch/powerpc/lib/board.c index 422b4a39bb..41b22949ff 100644 --- a/arch/powerpc/lib/board.c +++ b/arch/powerpc/lib/board.c @@ -1050,15 +1050,6 @@ void board_init_r(gd_t *id, ulong dest_addr) /* NOTREACHED - no way out of command loop except booting */ } -void hang(void) -{ - puts("### ERROR ### Please RESET the board ###\n"); - bootstage_error(BOOTSTAGE_ID_NEED_RESET); - for (;;) - ; -} - - #if 0 /* We could use plain global data, but the resulting code is bigger */ /* * Pointer to initial global data area diff --git a/arch/sh/lib/board.c b/arch/sh/lib/board.c index 6e43acfbd3..0789ed055d 100644 --- a/arch/sh/lib/board.c +++ b/arch/sh/lib/board.c @@ -200,12 +200,3 @@ void sh_generic_init(void) main_loop(); } } - -/***********************************************************************/ - -void hang(void) -{ - puts("Board ERROR\n"); - for (;;) - ; -} diff --git a/arch/sparc/lib/board.c b/arch/sparc/lib/board.c index 79fb4c87ef..fbc535fa09 100644 --- a/arch/sparc/lib/board.c +++ b/arch/sparc/lib/board.c @@ -411,13 +411,4 @@ void board_init_f(ulong bootflag) } -void hang(void) -{ - puts("### ERROR ### Please RESET the board ###\n"); -#ifdef CONFIG_SHOW_BOOT_PROGRESS - bootstage_error(BOOTSTAGE_ID_NEED_RESET); -#endif - for (;;) ; -} - /************************************************************************/ diff --git a/arch/x86/lib/board.c b/arch/x86/lib/board.c index f372898f61..228c2c8226 100644 --- a/arch/x86/lib/board.c +++ b/arch/x86/lib/board.c @@ -264,10 +264,3 @@ void board_init_r(gd_t *id, ulong dest_addr) /* NOTREACHED - no way out of command loop except booting */ } - -void hang(void) -{ - puts("### ERROR ### Please RESET the board ###\n"); - for (;;) - ; -} diff --git a/common/board_f.c b/common/board_f.c index 3a6638f8ee..32e59faa02 100644 --- a/common/board_f.c +++ b/common/board_f.c @@ -1087,13 +1087,3 @@ void board_init_f_r(void) hang(); } #endif /* CONFIG_X86 */ - -void hang(void) -{ - puts("### ERROR ### Please RESET the board ###\n"); -#ifdef CONFIG_SANDBOX - os_exit(0); -#else - for (;;); -#endif -} diff --git a/common/spl/spl.c b/common/spl/spl.c index 6715e0d203..7ce2d5f214 100644 --- a/common/spl/spl.c +++ b/common/spl/spl.c @@ -48,13 +48,6 @@ struct spl_image_info spl_image; /* Define board data structure */ static bd_t bdata __attribute__ ((section(".data"))); -inline void hang(void) -{ - puts("### ERROR ### Please RESET the board ###\n"); - for (;;) - ; -} - /* * Default function to determine if u-boot or the OS should * be started. This implementation always returns 1. diff --git a/drivers/mtd/nand/mxc_nand_spl.c b/drivers/mtd/nand/mxc_nand_spl.c index 09f23c30c4..edc589e5b7 100644 --- a/drivers/mtd/nand/mxc_nand_spl.c +++ b/drivers/mtd/nand/mxc_nand_spl.c @@ -355,12 +355,3 @@ void nand_boot(void) hang(); } } - -/* - * Called in case of an exception. - */ -void hang(void) -{ - /* Loop forever */ - while (1) ; -} diff --git a/lib/Makefile b/lib/Makefile index a3131d873f..8f81862b72 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -71,6 +71,7 @@ COBJS-$(CONFIG_BCH) += bch.o COBJS-y += crc32.o COBJS-y += ctype.o COBJS-y += div64.o +COBJS-y += hang.o COBJS-y += linux_string.o COBJS-$(CONFIG_REGEX) += slre.o COBJS-y += string.o diff --git a/lib/hang.c b/lib/hang.c new file mode 100644 index 0000000000..fc1286c0b7 --- /dev/null +++ b/lib/hang.c @@ -0,0 +1,47 @@ +/* + * (C) Copyright 2013 + * Andreas Bießmann + * + * This file consolidates all the different hang() functions implemented in + * u-boot. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include +#include + +/** + * hang - stop processing by staying in an endless loop + * + * The purpose of this function is to stop further execution of code cause + * something went completely wrong. To catch this and give some feedback to + * the user one needs to catch the bootstage_error (see show_boot_progress()) + * in the board code. + */ +void hang(void) +{ +#if !defined(CONFIG_SPL_BUILD) || (defined(CONFIG_SPL_LIBCOMMON_SUPPORT) && \ + defined(CONFIG_SPL_SERIAL_SUPPORT)) + puts("### ERROR ### Please RESET the board ###\n"); +#endif + bootstage_error(BOOTSTAGE_ID_NEED_RESET); + for (;;) + ; +}