diff options
Diffstat (limited to 'arch/x86/boot/compressed')
| -rw-r--r-- | arch/x86/boot/compressed/misc.c | 66 |
1 files changed, 34 insertions, 32 deletions
diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c index 69aec2f4155..50d054c2901 100644 --- a/arch/x86/boot/compressed/misc.c +++ b/arch/x86/boot/compressed/misc.c @@ -127,7 +127,8 @@ typedef unsigned char uch; typedef unsigned short ush; typedef unsigned long ulg; -#define WSIZE 0x80000000 /* Window size must be at least 32k, +#define WSIZE 0x80000000 /* + * Window size must be at least 32k, * and a power of two * We don't actually have a window just * a huge output buffer so I report @@ -152,22 +153,22 @@ static unsigned outcnt; /* bytes in output buffer */ #define RESERVED 0xC0 /* bit 6,7: reserved */ #define get_byte() (inptr < insize ? inbuf[inptr++] : fill_inbuf()) - + /* Diagnostic functions */ #ifdef DEBUG -# define Assert(cond,msg) {if(!(cond)) error(msg);} +# define Assert(cond, msg) {if(!(cond)) error(msg); } # define Trace(x) fprintf x -# define Tracev(x) {if (verbose) fprintf x ;} -# define Tracevv(x) {if (verbose>1) fprintf x ;} -# define Tracec(c,x) {if (verbose && (c)) fprintf x ;} -# define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;} +# define Tracev(x) {if (verbose) fprintf x ; } +# define Tracevv(x) {if (verbose > 1) fprintf x ; } +# define Tracec(c, x) {if (verbose && (c)) fprintf x ; } +# define Tracecv(c, x) {if (verbose > 1 && (c)) fprintf x ; } #else -# define Assert(cond,msg) +# define Assert(cond, msg) # define Trace(x) # define Tracev(x) # define Tracevv(x) -# define Tracec(c,x) -# define Tracecv(c,x) +# define Tracec(c, x) +# define Tracecv(c, x) #endif static int fill_inbuf(void); @@ -175,7 +176,7 @@ static void flush_window(void); static void error(char *m); static void gzip_mark(void **); static void gzip_release(void **); - + /* * This is set up by the setup-routine at boot-time */ @@ -190,7 +191,7 @@ static unsigned char *real_mode; /* Pointer to real-mode data */ extern unsigned char input_data[]; extern int input_len; -static long bytes_out = 0; +static long bytes_out; static void *malloc(int size); static void free(void *where); @@ -229,8 +230,10 @@ static void *malloc(int size) { void *p; - if (size <0) error("Malloc error"); - if (free_mem_ptr <= 0) error("Memory error"); + if (size < 0) + error("Malloc error"); + if (free_mem_ptr <= 0) + error("Memory error"); free_mem_ptr = (free_mem_ptr + 3) & ~3; /* Align */ @@ -256,19 +259,19 @@ static void gzip_release(void **ptr) { free_mem_ptr = (memptr) *ptr; } - + static void scroll(void) { int i; - memcpy ( vidmem, vidmem + cols * 2, ( lines - 1 ) * cols * 2 ); - for ( i = ( lines - 1 ) * cols * 2; i < lines * cols * 2; i += 2 ) + memcpy(vidmem, vidmem + cols * 2, (lines - 1) * cols * 2); + for (i = (lines - 1) * cols * 2; i < lines * cols * 2; i += 2) vidmem[i] = ' '; } static void putstr(const char *s) { - int x,y,pos; + int x, y, pos; char c; #ifdef CONFIG_X86_32 @@ -279,18 +282,18 @@ static void putstr(const char *s) x = RM_SCREEN_INFO.orig_x; y = RM_SCREEN_INFO.orig_y; - while ( ( c = *s++ ) != '\0' ) { - if ( c == '\n' ) { + while ((c = *s++) != '\0') { + if (c == '\n') { x = 0; - if ( ++y >= lines ) { + if (++y >= lines) { scroll(); y--; } } else { vidmem [(x + cols * y) * 2] = c; - if ( ++x >= cols ) { + if (++x >= cols) { x = 0; - if ( ++y >= lines ) { + if (++y >= lines) { scroll(); y--; } @@ -308,22 +311,22 @@ static void putstr(const char *s) outb(0xff & (pos >> 1), vidport+1); } -static void* memset(void* s, int c, unsigned n) +static void *memset(void *s, int c, unsigned n) { int i; char *ss = s; - for (i=0;i<n;i++) ss[i] = c; + for (i = 0; i < n; i++) ss[i] = c; return s; } -static void* memcpy(void* dest, const void* src, unsigned n) +static void *memcpy(void *dest, const void *src, unsigned n) { int i; const char *s = src; char *d = dest; - for (i=0;i<n;i++) d[i] = s[i]; + for (i = 0; i < n; i++) d[i] = s[i]; return dest; } @@ -383,11 +386,10 @@ static void parse_elf(void *output) int i; memcpy(&ehdr, output, sizeof(ehdr)); - if(ehdr.e_ident[EI_MAG0] != ELFMAG0 || + if (ehdr.e_ident[EI_MAG0] != ELFMAG0 || ehdr.e_ident[EI_MAG1] != ELFMAG1 || ehdr.e_ident[EI_MAG2] != ELFMAG2 || - ehdr.e_ident[EI_MAG3] != ELFMAG3) - { + ehdr.e_ident[EI_MAG3] != ELFMAG3) { error("Kernel is not a valid ELF file"); return; } @@ -400,7 +402,7 @@ static void parse_elf(void *output) memcpy(phdrs, output + ehdr.e_phoff, sizeof(*phdrs) * ehdr.e_phnum); - for (i=0; i<ehdr.e_phnum; i++) { + for (i = 0; i < ehdr.e_phnum; i++) { phdr = &phdrs[i]; switch (phdr->p_type) { @@ -409,7 +411,7 @@ static void parse_elf(void *output) dest = output; dest += (phdr->p_paddr - LOAD_PHYSICAL_ADDR); #else - dest = (void*)(phdr->p_paddr); + dest = (void *)(phdr->p_paddr); #endif memcpy(dest, output + phdr->p_offset, |