From bdb144b67a7660ce5d044ae9a2fd1a8030f12523 Mon Sep 17 00:00:00 2001 From: Jesper Nilsson Date: Sun, 29 Jun 2008 23:15:19 +0200 Subject: [CRIS] Build fixes for compressed and rescue images for v10 and v32: - Use the normal cross gcc instead of using an elf specific cris toolchain. This removes the dependency of this second toolchain. - Use the normal cross objcopy instead of overriding it to use elf-toolchain. This allows compiling using "CROSS_COMPILE=$CRIS_GCC/cris-axis-linux-gnu-" instead of just "CROSS_COMPILE=$CRIS_GCC/cris-axis-linux-gnu/bin/" - Remove redundant rules for compiling, the implicit rules are sufficient. - Convert the arch/cris/arch-v10/boot/compressed/head.S to format accepted by the cris-axis-linux-gnu-gcc (registers must be prefixed with '$', remove explicit underscore on exported symbols) - Remove a number of unused (and duplicated) prototypes from arch/cris/arch-v10/boot/compressed/misc.c. - Correct memcpy and memset return values (actually return them!) Signed-off-by: Jesper Nilsson --- arch/cris/arch-v10/boot/Makefile | 1 - arch/cris/arch-v10/boot/compressed/Makefile | 12 +-- arch/cris/arch-v10/boot/compressed/decompress.ld | 3 +- arch/cris/arch-v10/boot/compressed/head.S | 98 ++++++++++++------------ arch/cris/arch-v10/boot/compressed/misc.c | 23 +++--- arch/cris/arch-v10/boot/rescue/Makefile | 7 +- arch/cris/arch-v32/boot/Makefile | 1 - arch/cris/arch-v32/boot/compressed/Makefile | 4 - arch/cris/arch-v32/boot/rescue/Makefile | 1 - 9 files changed, 65 insertions(+), 85 deletions(-) (limited to 'arch/cris') diff --git a/arch/cris/arch-v10/boot/Makefile b/arch/cris/arch-v10/boot/Makefile index 20c83a5..2172030 100644 --- a/arch/cris/arch-v10/boot/Makefile +++ b/arch/cris/arch-v10/boot/Makefile @@ -2,7 +2,6 @@ # arch/cris/arch-v10/boot/Makefile # -OBJCOPY = objcopy-cris OBJCOPYFLAGS = -O binary --remove-section=.bss subdir- := compressed rescue diff --git a/arch/cris/arch-v10/boot/compressed/Makefile b/arch/cris/arch-v10/boot/compressed/Makefile index 4a031cb..9ec5f87 100644 --- a/arch/cris/arch-v10/boot/compressed/Makefile +++ b/arch/cris/arch-v10/boot/compressed/Makefile @@ -2,12 +2,10 @@ # arch/cris/arch-v10/boot/compressed/Makefile # -CC = gcc-cris -melf $(LINUXINCLUDE) -ccflags-y += -O2 -LD = ld-cris +asflags-y += $(LINUXINCLUDE) +ccflags-y += -O2 $(LINUXINCLUDE) ldflags-y += -T $(obj)/decompress.ld OBJECTS = $(obj)/head.o $(obj)/misc.o -OBJCOPY = objcopy-cris OBJCOPYFLAGS = -O binary --remove-section=.bss quiet_cmd_image = BUILD $@ @@ -21,12 +19,6 @@ $(obj)/decompress.o: $(OBJECTS) FORCE $(obj)/decompress.bin: $(obj)/decompress.o FORCE $(call if_changed,objcopy) -$(obj)/head.o: $(obj)/head.S .config - @$(CC) -D__ASSEMBLY__ -traditional -c $< -o $@ - -$(obj)/misc.o: $(obj)/misc.c .config - @$(CC) -D__KERNEL__ -c $< -o $@ - $(obj)/vmlinux: $(obj)/piggy.gz $(obj)/decompress.bin FORCE $(call if_changed,image) diff --git a/arch/cris/arch-v10/boot/compressed/decompress.ld b/arch/cris/arch-v10/boot/compressed/decompress.ld index 0b0a14f..e80f459 100644 --- a/arch/cris/arch-v10/boot/compressed/decompress.ld +++ b/arch/cris/arch-v10/boot/compressed/decompress.ld @@ -1,4 +1,5 @@ -OUTPUT_FORMAT(elf32-us-cris) +/* OUTPUT_FORMAT(elf32-us-cris) */ +OUTPUT_FORMAT(elf32-cris) MEMORY { diff --git a/arch/cris/arch-v10/boot/compressed/head.S b/arch/cris/arch-v10/boot/compressed/head.S index 610bdb2..981fbae 100644 --- a/arch/cris/arch-v10/boot/compressed/head.S +++ b/arch/cris/arch-v10/boot/compressed/head.S @@ -15,77 +15,77 @@ #define COMMAND_LINE_MAGIC 0x87109563 ;; Exported symbols - - .globl _input_data - + .globl input_data + + .text nop di ;; We need to initialze DRAM registers before we start using the DRAM - - cmp.d RAM_INIT_MAGIC, r8 ; Already initialized? + + cmp.d RAM_INIT_MAGIC, $r8 ; Already initialized? beq dram_init_finished nop - + #include "../../lib/dram_init.S" - -dram_init_finished: - + +dram_init_finished: + ;; Initiate the PA and PB ports - move.b CONFIG_ETRAX_DEF_R_PORT_PA_DATA, r0 - move.b r0, [R_PORT_PA_DATA] + move.b CONFIG_ETRAX_DEF_R_PORT_PA_DATA, $r0 + move.b $r0, [R_PORT_PA_DATA] - move.b CONFIG_ETRAX_DEF_R_PORT_PA_DIR, r0 - move.b r0, [R_PORT_PA_DIR] + move.b CONFIG_ETRAX_DEF_R_PORT_PA_DIR, $r0 + move.b $r0, [R_PORT_PA_DIR] - move.b CONFIG_ETRAX_DEF_R_PORT_PB_DATA, r0 - move.b r0, [R_PORT_PB_DATA] + move.b CONFIG_ETRAX_DEF_R_PORT_PB_DATA, $r0 + move.b $r0, [R_PORT_PB_DATA] - move.b CONFIG_ETRAX_DEF_R_PORT_PB_DIR, r0 - move.b r0, [R_PORT_PB_DIR] + move.b CONFIG_ETRAX_DEF_R_PORT_PB_DIR, $r0 + move.b $r0, [R_PORT_PB_DIR] ;; Setup the stack to a suitably high address. ;; We assume 8 MB is the minimum DRAM in an eLinux ;; product and put the sp at the top for now. - move.d 0x40800000, sp + move.d 0x40800000, $sp ;; Figure out where the compressed piggyback image is ;; in the flash (since we wont try to copy it to DRAM ;; before unpacking). It is at _edata, but in flash. ;; Use (_edata - basse) as offset to the current PC. - -basse: move.d pc, r5 - and.d 0x7fffffff, r5 ; strip any non-cache bit - subq 2, r5 ; compensate for the move.d pc instr - move.d r5, r0 ; save for later - flash address of 'basse' - add.d _edata, r5 - sub.d basse, r5 ; r5 = flash address of '_edata' - + +basse: move.d $pc, $r5 + and.d 0x7fffffff, $r5 ; strip any non-cache bit + subq 2, $r5 ; compensate for the move.d $pc instr + move.d $r5, $r0 ; save for later - flash address of 'basse' + add.d _edata, $r5 + sub.d basse, $r5 ; $r5 = flash address of '_edata' + ;; Copy text+data to DRAM - - move.d basse, r1 ; destination - move.d _edata, r2 ; end destination -1: move.w [r0+], r3 - move.w r3, [r1+] - cmp.d r2, r1 + + move.d basse, $r1 ; destination + move.d _edata, $r2 ; end destination +1: move.w [$r0+], $r3 + move.w $r3, [$r1+] + cmp.d $r2, $r1 bcs 1b nop - move.d r5, [_input_data] ; for the decompressor + move.d $r5, [input_data] ; for the decompressor ;; Clear the decompressors BSS (between _edata and _end) - - moveq 0, r0 - move.d _edata, r1 - move.d _end, r2 -1: move.w r0, [r1+] - cmp.d r2, r1 + + moveq 0, $r0 + move.d _edata, $r1 + move.d _end, $r2 +1: move.w $r0, [$r1+] + cmp.d $r2, $r1 bcs 1b nop @@ -94,16 +94,16 @@ basse: move.d pc, r5 move.d $r10, [$r12] move.d _cmd_line_addr, $r12 move.d $r11, [$r12] - - ;; Do the decompression and save compressed size in _inptr - jsr _decompress_kernel - - ;; Put start address of root partition in r9 so the kernel can use it + ;; Do the decompression and save compressed size in inptr + + jsr decompress_kernel + + ;; Put start address of root partition in $r9 so the kernel can use it ;; when mounting from flash - move.d [_input_data], r9 ; flash address of compressed kernel - add.d [_inptr], r9 ; size of compressed kernel + move.d [input_data], $r9 ; flash address of compressed kernel + add.d [inptr], $r9 ; size of compressed kernel ;; Restore command line magic and address. move.d _cmd_line_magic, $r10 @@ -112,12 +112,12 @@ basse: move.d pc, r5 move.d [$r11], $r11 ;; Enter the decompressed kernel - move.d RAM_INIT_MAGIC, r8 ; Tell kernel that DRAM is initialized + move.d RAM_INIT_MAGIC, $r8 ; Tell kernel that DRAM is initialized jump 0x40004000 ; kernel is linked to this address - + .data -_input_data: +input_data: .dword 0 ; used by the decompressor _cmd_line_magic: .dword 0 diff --git a/arch/cris/arch-v10/boot/compressed/misc.c b/arch/cris/arch-v10/boot/compressed/misc.c index 9a43ab1..59961f2 100644 --- a/arch/cris/arch-v10/boot/compressed/misc.c +++ b/arch/cris/arch-v10/boot/compressed/misc.c @@ -30,8 +30,7 @@ #define STATIC static void* memset(void* s, int c, size_t n); -void* memcpy(void* __dest, __const void* __src, - size_t __n); +void* memcpy(void* __dest, __const void* __src, size_t __n); #define memzero(s, n) memset ((s), 0, (n)) @@ -81,11 +80,8 @@ static unsigned outcnt = 0; /* bytes in output buffer */ # define Tracecv(c,x) #endif -static int fill_inbuf(void); static void flush_window(void); static void error(char *m); -static void gzip_mark(void **); -static void gzip_release(void **); extern char *input_data; /* lives in head.S */ @@ -95,7 +91,6 @@ static unsigned long output_ptr = 0; static void *malloc(int size); static void free(void *where); -static void error(char *m); static void gzip_mark(void **); static void gzip_release(void **); @@ -103,8 +98,8 @@ static void puts(const char *); /* the "heap" is put directly after the BSS ends, at end */ -extern int end; -static long free_mem_ptr = (long)&end; +extern int _end; +static long free_mem_ptr = (long)&_end; #include "../../../../../lib/inflate.c" @@ -170,6 +165,8 @@ memset(void* s, int c, size_t n) char *ss = (char*)s; for (i=0;i