From b79c4df714ff190f7149d3d5a86278bdc25a90ec Mon Sep 17 00:00:00 2001 From: Carl-Daniel Hailfinger Date: Mon, 26 Jun 2006 13:57:53 +0200 Subject: [PATCH] i386/x86-64: Consolidate arch/{i386,x86_64}/boot/compressed/misc.c Clean up arch/{i386,x86_64}/boot/compressed/misc.c a bit to reduce their differences. Should have zero effect on code generation. Signed-off-by: Carl-Daniel Hailfinger Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds --- arch/i386/boot/compressed/misc.c | 32 ++++++++++---------------- arch/x86_64/boot/compressed/misc.c | 46 +++++++++++++++++++------------------- 2 files changed, 35 insertions(+), 43 deletions(-) diff --git a/arch/i386/boot/compressed/misc.c b/arch/i386/boot/compressed/misc.c index f19f3a7492a..b2ccd543410 100644 --- a/arch/i386/boot/compressed/misc.c +++ b/arch/i386/boot/compressed/misc.c @@ -24,14 +24,6 @@ #undef memset #undef memcpy - -/* - * Why do we do this? Don't ask me.. - * - * Incomprehensible are the ways of bootloaders. - */ -static void* memset(void *, int, size_t); -static void* memcpy(void *, __const void *, size_t); #define memzero(s, n) memset ((s), 0, (n)) typedef unsigned char uch; @@ -93,7 +85,7 @@ static unsigned char *real_mode; /* Pointer to real-mode data */ #endif #define RM_SCREEN_INFO (*(struct screen_info *)(real_mode+0)) -extern char input_data[]; +extern unsigned char input_data[]; extern int input_len; static long bytes_out = 0; @@ -103,6 +95,9 @@ static unsigned long output_ptr = 0; static void *malloc(int size); static void free(void *where); +static void *memset(void *s, int c, unsigned n); +static void *memcpy(void *dest, const void *src, unsigned n); + static void putstr(const char *); extern int end; @@ -205,7 +200,7 @@ static void putstr(const char *s) outb_p(0xff & (pos >> 1), vidport+1); } -static void* memset(void* s, int c, size_t n) +static void* memset(void* s, int c, unsigned n) { int i; char *ss = (char*)s; @@ -214,14 +209,13 @@ static void* memset(void* s, int c, size_t n) return s; } -static void* memcpy(void* __dest, __const void* __src, - size_t __n) +static void* memcpy(void* dest, const void* src, unsigned n) { int i; - char *d = (char *)__dest, *s = (char *)__src; + char *d = (char *)dest, *s = (char *)src; - for (i=0;i<__n;i++) d[i] = s[i]; - return __dest; + for (i=0;i RM_EXT_MEM_K ? RM_ALT_MEM_K : RM_EXT_MEM_K) < 1024) error("Less than 2MB of memory"); #endif - output_data = (char *)__PHYSICAL_START; /* Normally Points to 1M */ + output_data = (unsigned char *)__PHYSICAL_START; /* Normally Points to 1M */ free_mem_end_ptr = (long)real_mode; } @@ -324,11 +318,9 @@ static void setup_output_buffer_if_we_run_high(struct moveparams *mv) #ifdef STANDARD_MEMORY_BIOS_CALL if (RM_EXT_MEM_K < (3*1024)) error("Less than 4MB of memory"); #else - if ((RM_ALT_MEM_K > RM_EXT_MEM_K ? RM_ALT_MEM_K : RM_EXT_MEM_K) < - (3*1024)) - error("Less than 4MB of memory"); + if ((RM_ALT_MEM_K > RM_EXT_MEM_K ? RM_ALT_MEM_K : RM_EXT_MEM_K) < (3*1024)) error("Less than 4MB of memory"); #endif - mv->low_buffer_start = output_data = (char *)LOW_BUFFER_START; + mv->low_buffer_start = output_data = (unsigned char *)LOW_BUFFER_START; low_buffer_end = ((unsigned int)real_mode > LOW_BUFFER_MAX ? LOW_BUFFER_MAX : (unsigned int)real_mode) & ~0xfff; low_buffer_size = low_buffer_end - LOW_BUFFER_START; diff --git a/arch/x86_64/boot/compressed/misc.c b/arch/x86_64/boot/compressed/misc.c index cf4b88c416d..3755b2e394d 100644 --- a/arch/x86_64/boot/compressed/misc.c +++ b/arch/x86_64/boot/compressed/misc.c @@ -77,11 +77,11 @@ static void gzip_release(void **); */ static unsigned char *real_mode; /* Pointer to real-mode data */ -#define EXT_MEM_K (*(unsigned short *)(real_mode + 0x2)) +#define RM_EXT_MEM_K (*(unsigned short *)(real_mode + 0x2)) #ifndef STANDARD_MEMORY_BIOS_CALL -#define ALT_MEM_K (*(unsigned long *)(real_mode + 0x1e0)) +#define RM_ALT_MEM_K (*(unsigned long *)(real_mode + 0x1e0)) #endif -#define SCREEN_INFO (*(struct screen_info *)(real_mode+0)) +#define RM_SCREEN_INFO (*(struct screen_info *)(real_mode+0)) extern unsigned char input_data[]; extern int input_len; @@ -92,9 +92,9 @@ static unsigned long output_ptr = 0; static void *malloc(int size); static void free(void *where); - -void* memset(void* s, int c, unsigned n); -void* memcpy(void* dest, const void* src, unsigned n); + +static void *memset(void *s, int c, unsigned n); +static void *memcpy(void *dest, const void *src, unsigned n); static void putstr(const char *); @@ -162,8 +162,8 @@ static void putstr(const char *s) int x,y,pos; char c; - x = SCREEN_INFO.orig_x; - y = SCREEN_INFO.orig_y; + x = RM_SCREEN_INFO.orig_x; + y = RM_SCREEN_INFO.orig_y; while ( ( c = *s++ ) != '\0' ) { if ( c == '\n' ) { @@ -184,8 +184,8 @@ static void putstr(const char *s) } } - SCREEN_INFO.orig_x = x; - SCREEN_INFO.orig_y = y; + RM_SCREEN_INFO.orig_x = x; + RM_SCREEN_INFO.orig_y = y; pos = (x + cols * y) * 2; /* Update cursor position */ outb_p(14, vidport); @@ -194,7 +194,7 @@ static void putstr(const char *s) outb_p(0xff & (pos >> 1), vidport+1); } -void* memset(void* s, int c, unsigned n) +static void* memset(void* s, int c, unsigned n) { int i; char *ss = (char*)s; @@ -203,7 +203,7 @@ void* memset(void* s, int c, unsigned n) return s; } -void* memcpy(void* dest, const void* src, unsigned n) +static void* memcpy(void* dest, const void* src, unsigned n) { int i; char *d = (char *)dest, *s = (char *)src; @@ -278,15 +278,15 @@ static void error(char *x) putstr(x); putstr("\n\n -- System halted"); - while(1); + while(1); /* Halt */ } -void setup_normal_output_buffer(void) +static void setup_normal_output_buffer(void) { #ifdef STANDARD_MEMORY_BIOS_CALL - if (EXT_MEM_K < 1024) error("Less than 2MB of memory"); + if (RM_EXT_MEM_K < 1024) error("Less than 2MB of memory"); #else - if ((ALT_MEM_K > EXT_MEM_K ? ALT_MEM_K : EXT_MEM_K) < 1024) error("Less than 2MB of memory"); + if ((RM_ALT_MEM_K > RM_EXT_MEM_K ? RM_ALT_MEM_K : RM_EXT_MEM_K) < 1024) error("Less than 2MB of memory"); #endif output_data = (unsigned char *)__PHYSICAL_START; /* Normally Points to 1M */ free_mem_end_ptr = (long)real_mode; @@ -297,13 +297,13 @@ struct moveparams { uch *high_buffer_start; int hcount; }; -void setup_output_buffer_if_we_run_high(struct moveparams *mv) +static void setup_output_buffer_if_we_run_high(struct moveparams *mv) { high_buffer_start = (uch *)(((ulg)&end) + HEAP_SIZE); #ifdef STANDARD_MEMORY_BIOS_CALL - if (EXT_MEM_K < (3*1024)) error("Less than 4MB of memory"); + if (RM_EXT_MEM_K < (3*1024)) error("Less than 4MB of memory"); #else - if ((ALT_MEM_K > EXT_MEM_K ? ALT_MEM_K : EXT_MEM_K) < (3*1024)) error("Less than 4MB of memory"); + if ((RM_ALT_MEM_K > RM_EXT_MEM_K ? RM_ALT_MEM_K : RM_EXT_MEM_K) < (3*1024)) error("Less than 4MB of memory"); #endif mv->low_buffer_start = output_data = (unsigned char *)LOW_BUFFER_START; low_buffer_end = ((unsigned int)real_mode > LOW_BUFFER_MAX @@ -319,7 +319,7 @@ void setup_output_buffer_if_we_run_high(struct moveparams *mv) mv->high_buffer_start = high_buffer_start; } -void close_output_buffer_if_we_run_high(struct moveparams *mv) +static void close_output_buffer_if_we_run_high(struct moveparams *mv) { if (bytes_out > low_buffer_size) { mv->lcount = low_buffer_size; @@ -335,7 +335,7 @@ int decompress_kernel(struct moveparams *mv, void *rmode) { real_mode = rmode; - if (SCREEN_INFO.orig_video_mode == 7) { + if (RM_SCREEN_INFO.orig_video_mode == 7) { vidmem = (char *) 0xb0000; vidport = 0x3b4; } else { @@ -343,8 +343,8 @@ int decompress_kernel(struct moveparams *mv, void *rmode) vidport = 0x3d4; } - lines = SCREEN_INFO.orig_video_lines; - cols = SCREEN_INFO.orig_video_cols; + lines = RM_SCREEN_INFO.orig_video_lines; + cols = RM_SCREEN_INFO.orig_video_cols; if (free_mem_ptr < 0x100000) setup_normal_output_buffer(); else setup_output_buffer_if_we_run_high(mv); -- cgit v1.2.3-70-g09d2