diff options
Diffstat (limited to 'openwrt/target/linux/image/ar7')
| -rw-r--r-- | openwrt/target/linux/image/ar7/Makefile | 50 | ||||
| -rw-r--r-- | openwrt/target/linux/image/ar7/src/gzip.h | 51 | ||||
| -rw-r--r-- | openwrt/target/linux/image/ar7/src/ld.script.in | 41 | ||||
| -rw-r--r-- | openwrt/target/linux/image/ar7/src/loader.c | 1349 | ||||
| -rw-r--r-- | openwrt/target/linux/image/ar7/src/srec2bin.c | 638 | ||||
| -rw-r--r-- | openwrt/target/linux/image/ar7/src/zimage.script.in | 11 |
6 files changed, 2140 insertions, 0 deletions
diff --git a/openwrt/target/linux/image/ar7/Makefile b/openwrt/target/linux/image/ar7/Makefile new file mode 100644 index 0000000..ee78cc9 --- /dev/null +++ b/openwrt/target/linux/image/ar7/Makefile @@ -0,0 +1,50 @@ +include $(TOPDIR)/rules.mk + +KDIR:=$(BUILD_DIR)/linux-$(KERNEL)-ar7 + +PKG_BUILD_DIR:=$(BUILD_DIR)/ar7loader + +LOADADDR := 0x94020000 +OUTPUT_FORMAT := elf32-tradlittlemips + +CFLAGS := -D__KERNEL__ -Wall -Wstrict-prototypes -Wno-trigraphs -Os \ + -fno-strict-aliasing -fno-common -fomit-frame-pointer -G 0 -mno-abicalls -fno-pic \ + -pipe -mlong-calls -fno-common \ + -mabi=32 -march=mips32 -Wa,-32 -Wa,-march=mips32 -Wa,-mips32 -Wa,--trap \ + + +$(PKG_BUILD_DIR): + mkdir -p $(PKG_BUILD_DIR) + +$(PKG_BUILD_DIR)/zimage.script: src/zimage.script.in + sed -e 's/@@OUTPUT_FORMAT@@/$(OUTPUT_FORMAT)/' \ + -e 's/@@LOADADDR@@/$(LOADADDR)/' <$< >$@ + +$(PKG_BUILD_DIR)/ld.script: src/ld.script.in + sed -e 's/@@OUTPUT_FORMAT@@/$(OUTPUT_FORMAT)/' \ + -e 's/@@LOADADDR@@/$(LOADADDR)/' <$< >$@ + +$(PKG_BUILD_DIR)/loader.o: src/loader.c + $(TARGET_CC) $(CFLAGS) -c -o $@ $< + +$(PKG_BUILD_DIR)/srec2bin: src/srec2bin.c + $(HOSTCC) -o $@ $< + +$(KDIR)/vmlinux.gz: $(KDIR)/vmlinux + gzip -c -vf9 < $< > $@ + +$(BIN_DIR)/openwrt-ar7-zimage.bin: $(KDIR)/vmlinux.gz compile + $(TARGET_CROSS)ld -T $(PKG_BUILD_DIR)/zimage.script -r -b binary $< -o $(KDIR)/zimage.o + $(TARGET_CROSS)ld -static -G 0 -no-warn-mismatch -R $(KDIR)/linux-$(KERNEL)*/vmlinux -T $(PKG_BUILD_DIR)/ld.script \ + $(PKG_BUILD_DIR)/loader.o \ + $(KDIR)/zimage.o \ + -o $(KDIR)/loader + $(TARGET_CROSS)objcopy -O srec $(KDIR)/loader $(KDIR)/ram_zimage.sre + $(PKG_BUILD_DIR)/srec2bin $(KDIR)/ram_zimage.sre $@ + +clean: + rm -rf $(PKG_BUILD_DIR) +prepare: $(PKG_BUILD_DIR) $(PKG_BUILD_DIR)/zimage.script $(PKG_BUILD_DIR)/ld.script +compile: prepare $(PKG_BUILD_DIR)/loader.o $(PKG_BUILD_DIR)/srec2bin +install: $(BIN_DIR)/openwrt-ar7-zimage.bin + diff --git a/openwrt/target/linux/image/ar7/src/gzip.h b/openwrt/target/linux/image/ar7/src/gzip.h new file mode 100644 index 0000000..917e666 --- /dev/null +++ b/openwrt/target/linux/image/ar7/src/gzip.h @@ -0,0 +1,51 @@ +//bvb#include "timemmap.h" + +#define OF(args) args +#define STATIC static + +#define WSIZE 0x8000 /* Slideing window size (defined as var + * "window" below) must be at least 32k, + * and a power of two. This is the + * data work window used for input buffer + * by the input routine */ + +typedef unsigned char uch; +typedef unsigned short ush; +typedef unsigned long ulg; + + +static char *output_data; +static ulg output_ptr; + +#ifndef NULL +#define NULL 0 +#endif + +#define NOMEMCPY /* Does routine memcpy exist? */ + +//bvb static uch *inbuf; /* input buffer */ +static uch *window; + +//bvb static uch outwin[WSIZE]; + +//bvb static unsigned insize; /* valid bytes in inbuf */ +static unsigned inptr; /* index of next byte to process in inbuf */ + +static unsigned outcnt; /* bytes in output buffer */ + +/* gzip flag byte */ +#define ASCII_FLAG 0x01 /* bit 0 set: file probably ascii text */ +#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */ +#define EXTRA_FIELD 0x04 /* bit 2 set: extra field present */ +#define ORIG_NAME 0x08 /* bit 3 set: original file name present */ +#define COMMENT 0x10 /* bit 4 set: file comment present */ +#define ENCRYPTED 0x20 /* bit 5 set: file is encrypted */ +#define RESERVED 0xC0 /* bit 6,7: reserved */ + +/* If BMAX needs to be larger than 16, then h and x[] should be ulg. */ +#define BMAX 16 /* maximum bit length of any code (16 for explode) */ +#define N_MAX 288 /* maximum number of codes in any set */ + +static char *input_data; + +static void *freememstart; diff --git a/openwrt/target/linux/image/ar7/src/ld.script.in b/openwrt/target/linux/image/ar7/src/ld.script.in new file mode 100644 index 0000000..9a9f3ef --- /dev/null +++ b/openwrt/target/linux/image/ar7/src/ld.script.in @@ -0,0 +1,41 @@ + OUTPUT_FORMAT("@@OUTPUT_FORMAT@@") + OUTPUT_ARCH(mips) +ENTRY(tikernelunzip) + SECTIONS +{ + + /* Allocate memory space on top of kernel bss space */ + . = _fbss; + .text : + { + *(.text) + *(.rodata) + *(.rodata1) + *(.gnu.warning) + *(.text.init) + *(.data.init) + } + + .data : + { + *(*) + } + +bss : + { + inflate_bss_start = .; + *(.dynbss) + *(.bss) + *(COMMON) + *(.sbss) + *(.scommon) + inflate_bss_end = .; + . = ALIGN (0x8000); + inflate_slide_window = .; + . += 0x8000; /* slide window is 8000h */ + inflate_free_memory_start = .; + } + + + +} diff --git a/openwrt/target/linux/image/ar7/src/loader.c b/openwrt/target/linux/image/ar7/src/loader.c new file mode 100644 index 0000000..f4f9295 --- /dev/null +++ b/openwrt/target/linux/image/ar7/src/loader.c @@ -0,0 +1,1349 @@ +/* inflate.c -- Not copyrighted 1992 by Mark Adler + version c10p1, 10 January 1993 */ + +/* + * Adapted for booting Linux by Hannu Savolainen 1993 + * based on gzip-1.0.3 + * + * Nicolas Pitre <nico@visuaide.com>, 1999/04/14 : + * Little mods for all variable to reside either into rodata or bss segments + * by marking constant variables with 'const' and initializing all the others + * at run-time only. This allows for the kernel uncompressor to run + * directly from Flash or ROM memory on embeded systems. + */ + +/* + Inflate deflated (PKZIP's method 8 compressed) data. (compress + with the gzip -3 option which will compress it in a compatible + format). + + The compression method searches for as much of the current string of bytes + (up to a length of 258) in the previous 32 K bytes. If it doesn't find any + matches (of at least length 3), it codes the next byte. Otherwise, it + codes the length of the matched string and its distance backwards from + the current position. There is a single Huffman code that codes both + single bytes (called "literals") and match lengths. A second Huffman + code codes the distance information, which follows a length code. Each + length or distance code actually represents a base value and a number + of "extra" (sometimes zero) bits to get to add to the base value. At + the end of each deflated block is a special end-of-block (EOB) literal/ + length code. The decoding process is basically: get a literal/length + code; if EOB then done; if a literal, emit the decoded byte; if a + length then get the distance and emit the referred-to bytes from the + sliding window of previously emitted data. + + There are (currently) three kinds of inflate blocks: stored, fixed, and + dynamic. The compressor deals with some chunk of data at a time, and + decides which method to use on a chunk-by-chunk basis. A chunk might + typically be 32 K or 64 K. If the chunk is incompressible, then the + "stored" method is used. In this case, the bytes are simply stored as + is, eight bits per byte, with none of the above coding. The bytes are + preceded by a count, since there is no longer an EOB code. + + If the data is compressible, then either the fixed or dynamic methods + are used. In the dynamic method, the compressed data is preceded by + an encoding of the literal/length and distance Huffman codes that are + to be used to decode this block. The representation is itself Huffman + coded, and so is preceded by a description of that code. These code + descriptions take up a little space, and so for small blocks, there is + a predefined set of codes, called the fixed codes. The fixed method is + used if the block codes up smaller that way (usually for quite small + chunks), otherwise the dynamic method is used. In the latter case, the + codes are customized to the probabilities in the current block, and so + can code it much better than the pre-determined fixed codes. + + The Huffman codes themselves are decoded using a multi-level table + lookup, in order to maximize the speed of decoding plus the speed of + building the decoding tables. See the comments below that precede the + lbits and dbits tuning parameters. + */ + + +/* + Notes beyond the 1.93a appnote.txt: + + 1. Distance pointers never point before the beginning of the output + stream. + 2. Distance pointers can point back across blocks, up to 32k away. + 3. There is an implied maximum of 7 bits for the bit length table and + 15 bits for the actual data. + 4. If only one code exists, then it is encoded using one bit. (Zero + would be more efficient, but perhaps a little confusing.) If two + codes exist, they are coded using one bit each (0 and 1). + 5. There is no way of sending zero distance codes--a dummy must be + sent if there are none. (History: a pre 2.0 version of PKZIP would + store blocks with no distance codes, but this was discovered to be + too harsh a criterion.) Valid only for 1.93a. 2.04c does allow + zero distance codes, which is sent as one code of zero bits in + length. + 6. There are up to 286 literal/length codes. Code 256 represents the + end-of-block. Note however that the static length tree defines + 288 codes just to fill out the Huffman codes. Codes 286 and 287 + cannot be used though, since there is no length base or extra bits + defined for them. Similarly, there are up to 30 distance codes. + However, static trees define 32 codes (all 5 bits) to fill out the + Huffman codes, but the last two had better not show up in the data. + 7. Unzip can check dynamic Huffman blocks for complete code sets. + The exception is that a single code would not be complete (see #4). + 8. The five bits following the block type is really the number of + literal codes sent minus 257. + 9. Length codes 8,16,16 are interpreted as 13 length codes of 8 bits + (1+6+6). Therefore, to output three times the length, you output + three codes (1+1+1), whereas to output four times the same length, + you only need two codes (1+3). Hmm. + 10. In the tree reconstruction algorithm, Code = Code + Increment + only if BitLength(i) is not zero. (Pretty obvious.) + 11. Correction: 4 Bits: # of Bit Length codes - 4 (4 - 19) + 12. Note: length code 284 can represent 227-258, but length code 285 + really is 258. The last length deserves its own, short code + since it gets used a lot in very redundant files. The length + 258 is special since 258 - 3 (the min match length) is 255. + 13. The literal/length and distance code bit lengths are read as a + single stream of lengths. It is possible (and advantageous) for + a repeat code (16, 17, or 18) to go across the boundary between + the two sets of lengths. + */ + +#include "gzip.h" +#include <linux/config.h> + + + +#ifndef STATIC +#define STATIC +#endif /* !STATIC */ + +#define slide window + +/* Huffman code lookup table entry--this entry is four bytes for machines + that have 16-bit pointers (e.g. PC's in the small or medium model). + Valid extra bits are 0..13. e == 15 is EOB (end of block), e == 16 + means that v is a literal, 16 < e < 32 means that v is a pointer to + the next table, which codes e - 16 bits, and lastly e == 99 indicates + an unused code. If a code with e == 99 is looked up, this implies an + error in the data. */ +struct huft { + uch e; /* number of extra bits or operation */ + uch b; /* number of bits in this code or subcode */ + union { + ush n; /* literal, length base, or distance base */ + struct huft *t; /* pointer to next level of table */ + } v; +}; + + +/* Function prototypes */ +STATIC int huft_build OF((unsigned *, unsigned, unsigned, + const ush *, const ush *, struct huft **, int *)); +STATIC int huft_free OF((struct huft *)); +STATIC int inflate_codes OF((struct huft *, struct huft *, int, int)); +STATIC int inflate_stored OF((void)); +STATIC int inflate_fixed OF((void)); +STATIC int inflate_dynamic OF((void)); +STATIC int inflate_block OF((int *)); +STATIC int inflate OF((void)); +static void flush_window(void); +static void gzip_mark(void **); +static void gzip_release(void **); +STATIC uch get_byte(void); +STATIC void memzero(int *, int ); +static void makecrc(void); +static void *malloc(int); +static void free(void *); +int tikernelunzip(int,char *[], char *[]); +static int tidecompress(uch *, uch *); +#if !defined(NOMEMCPY) +static uch *memcpy(uch *, const uch *, int); +#endif + +void kernel_entry(int, char *[], char *[]); +void (*ke)(int, char *[], char *[]); /* Gen reference to kernel function */ + +void (*prnt)(unsigned int, char *); /* Gen reference to Yamon print function */ + +void printf(char *ptr); /* Generate our own printf */ + + + +/* The inflate algorithm uses a sliding 32 K byte window on the uncompressed + stream to find repeated byte strings. This is implemented here as a + circular buffer. The index is updated simply by incrementing and then + ANDing with 0x7fff (32K-1). */ +/* It is left to other modules to supply the 32 K area. It is assumed + to be usable as if it were declared "uch slide[32768];" or as just + "uch *slide;" and then malloc'ed in the latter case. The definition + must be in unzip.h, included above. */ +/* unsigned wp; current position in slide */ +#define wp outcnt +#define flush_output(w) (wp=(w),flush_window()) + +/* Tables for deflate from PKZIP's appnote.txt. */ +static const unsigned border[] = { /* Order of the bit length code lengths */ + 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; +static const ush cplens[] = { /* Copy lengths for literal codes 257..285 */ + 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31, + 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0}; + /* note: see note #13 above about the 258 in this list. */ +static const ush cplext[] = { /* Extra bits for literal codes 257..285 */ + 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, + 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0, 99, 99}; /* 99==invalid */ +static const ush cpdist[] = { /* Copy offsets for distance codes 0..29 */ + 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, + 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, + 8193, 12289, 16385, 24577}; +static const ush cpdext[] = { /* Extra bits for distance codes */ + 0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, + 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, + 12, 12, 13, 13}; + +//bvb extern uch kernelimage[]; + + + + +/* Macros for inflate() bit peeking and grabbing. + The usage is: + + NEEDBITS(j) + x = b & mask_bits[j]; + DUMPBITS(j) + + where NEEDBITS makes sure that b has at least j bits in it, and + DUMPBITS removes the bits from b. The macros use the variable k + for the number of bits in b. Normally, b and k are register + variables for speed, and are initialized at the beginning of a + routine that uses these macros from a global bit buffer and count. + + If we assume that EOB will be the longest code, then we will never + ask for bits with NEEDBITS that are beyond the end of the stream. + So, NEEDBITS should not read any more bytes than are needed to + meet the request. Then no bytes need to be "returned" to the buffer + at the end of the last block. + + However, this assumption is not true for fixed blocks--the EOB code + is 7 bits, but the other literal/length codes can be 8 or 9 bits. + (The EOB code is shorter than other codes because fixed blocks are + generally short. So, while a block always has an EOB, many other + literal/length codes have a significantly lower probability of + showing up at all.) However, by making the first table have a + lookup of seven bits, the EOB code will be found in that first + lookup, and so will not require that too many bits be pulled from + the stream. + */ + +STATIC ulg bb; /* bit buffer */ +STATIC unsigned bk; /* bits in bit buffer */ +ulg bytes_out; +static ulg free_mem_ptr; +//bvb static ulg free_mem_ptr_end; + +STATIC const ush mask_bits[] = { + 0x0000, + 0x0001, 0x0003, 0x0007, 0x000f, 0x001f, 0x003f, 0x007f, 0x00ff, + 0x01ff, 0x03ff, 0x07ff, 0x0fff, 0x1fff, 0x3fff, 0x7fff, 0xffff +}; + +#define NEXTBYTE() ((uch)get_byte()) +#define NEEDBITS(n) {while(k<(n)){b|=((ulg)NEXTBYTE())<<k;k+=8;}} +#define DUMPBITS(n) {b>>=(n); k-=(n);} + + +/* + Huffman code decoding is performed using a multi-level table lookup. + The fastest way to decode is to simply build a lookup table whose + size is determined by the longest code. However, the time it takes + to build this table can also be a factor if the data being decoded + is not very long. The most common codes are necessarily the + shortest codes, so those codes dominate the decoding time, and hence + the speed. The idea is you can have a shorter table that decodes the + shorter, more probable codes, and then point to subsidiary tables for + the longer codes. The time it costs to decode the longer codes is + then traded against the time it takes to make longer tables. + + This results of this trade are in the variables lbits and dbits + below. lbits is the number of bits the first level table for literal/ + length codes can decode in one step, and dbits is the same thing for + the distance codes. Subsequent tables are also less than or equal to + those sizes. These values may be adjusted either when all of the + codes are shorter than that, in which case the longest code length in + bits is used, or when the shortest code is *longer* than the requested + table size, in which case the length of the shortest code in bits is + used. + + There are two different values for the two tables, since they code a + different number of possibilities each. The literal/length table + codes 286 possible values, or in a flat code, a little over eight + bits. The distance table codes 30 possible values, or a little less + than five bits, flat. The optimum values for speed end up being + about one bit more than those, so lbits is 8+1 and dbits is 5+1. + The optimum values may differ though from machine to machine, and + possibly even between compilers. Your mileage may vary. + */ + + +STATIC const int lbits = 9; /* bits in base literal/length lookup table */ +STATIC const int dbits = 6; /* bits in base distance lookup table */ + + +/* If BMAX needs to be larger than 16, then h and x[] should be ulg. */ +#define BMAX 16 /* maximum bit length of any code (16 for explode) */ +#define N_MAX 288 /* maximum number of codes in any set */ + + +STATIC unsigned hufts; /* track memory usage */ + + +STATIC int huft_build(b, n, s, d, e, t, m) +unsigned *b; /* code lengths in bits (all assumed <= BMAX) */ +unsigned n; /* number of codes (assumed <= N_MAX) */ +unsigned s; /* number of simple-valued codes (0..s-1) */ +const ush *d; /* list of base values for non-simple codes */ +const ush *e; /* list of extra bits for non-simple codes */ +struct huft **t; /* result: starting table */ +int *m; /* maximum lookup bits, returns actual */ +/* Given a list of code lengths and a maximum table size, make a set of + tables to decode that set of codes. Return zero on success, one if + the given code set is incomplete (the tables are still built in this + case), two if the input is invalid (all zero length codes or an + oversubscribed set of lengths), and three if not enough memory. */ +{ + unsigned a; /* counter for codes of length k */ + unsigned c[BMAX+1]; /* bit length count table */ + unsigned f; /* i repeats in table every f entries */ + int g; /* maximum code length */ + int h; /* table level */ + register unsigned i; /* counter, current code */ + register unsigned j; /* counter */ + register int k; /* number of bits in current code */ + int l; /* bits per table (returned in m) */ + register unsigned *p; /* pointer into c[], b[], or v[] */ + register struct huft *q; /* points to current table */ + struct huft r; /* table entry for structure assignment */ + struct huft *u[BMAX]; /* table stack */ + unsigned v[N_MAX]; /* values in order of bit length */ + register int w; /* bits before this table == (l * h) */ + unsigned x[BMAX+1]; /* bit offsets, then code stack */ + unsigned *xp; /* pointer into x */ + int y; /* number of dummy codes added */ + unsigned z; /* number of entries in current table */ + + + /* Generate counts for each bit length */ + memzero(c, sizeof(c)); + p = b; i = n; + do { + /* Tracecv(*p, (stderr, (n-i >= ' ' && n-i <= '~' ? "%c %d\n" : "0x%x %d\n"), n-i, *p)); */ + + c[*p]++; /* assume all entries <= BMAX */ + p++; /* Can't combine with above line (Solaris bug) */ + } while (--i); + if (c[0] == n) /* null input--all zero length codes */ + { + *t = (struct huft *)NULL; + *m = 0; + return 0; + } + + + /* Find minimum and maximum length, bound *m by those */ + l = *m; + for (j = 1; j <= BMAX; j++) + if (c[j]) + break; + k = j; /* minimum code length */ + if ((unsigned)l < j) + l = j; + for (i = BMAX; i; i--) + if (c[i]) + break; + g = i; /* maximum code length */ + if ((unsigned)l > i) + l = i; + *m = l; + + + /* Adjust last length count to fill out codes, if needed */ + for (y = 1 << j; j < i; j++, y <<= 1) + if ((y -= c[j]) < 0) + return 2; /* bad input: more codes than bits */ + if ((y -= c[i]) < 0) + return 2; + c[i] += y; + + + /* Generate starting offsets into the value table for each length */ + x[1] = j = 0; + p = c + 1; xp = x + 2; + while (--i) { /* note that i == g from above */ + *xp++ = (j += *p++); + } + + + /* Make a table of values in order of bit lengths */ + p = b; i = 0; + do { + if ((j = *p++) != 0) + v[x[j]++] = i; + } while (++i < n); + + + /* Generate the Huffman codes and for each, make the table entries */ + x[0] = i = 0; /* first Huffman code is zero */ + p = v; /* grab values in bit order */ + h = -1; /* no tables yet--level -1 */ + w = -l; /* bits decoded == (l * h) */ + u[0] = (struct huft *)NULL; /* just to keep compilers happy */ + q = (struct huft *)NULL; /* ditto */ + z = 0; /* ditto */ + + /* go through the bit lengths (k already is bits in shortest code) */ + for (; k <= g; k++) + { + a = c[k]; + while (a--) + { + /* here i is the Huffman code of length k bits for value *p */ + /* make tables up to required level */ + while (k > w + l) + { + h++; + w += l; /* previous table always l bits */ + + /* compute minimum size table less than or equal to l bits */ + z = (z = g - w) > (unsigned)l ? l : z; /* upper limit on table size */ + if ((f = 1 << (j = k - w)) > a + 1) /* try a k-w bit table */ + { /* too few codes for k-w bit table */ + f -= a + 1; /* deduct codes from patterns left */ + xp = c + k; + while (++j < z) /* try smaller tables up to z bits */ + { + if ((f <<= 1) <= *++xp) + break; /* enough codes to use up j bits */ + f -= *xp; /* else deduct codes from patterns */ + } + } + z = 1 << j; /* table entries for j-bit table */ + + /* allocate and link in new table */ + if ((q = (struct huft *)malloc((z + 1)*sizeof(struct huft))) == + (struct huft *)NULL) + { + if (h) + huft_free(u[0]); + return 3; /* not enough memory */ + } + hufts += z + 1; /* track memory usage */ + *t = q + 1; /* link to list for huft_free() */ + *(t = &(q->v.t)) = (struct huft *)NULL; + u[h] = ++q; /* table starts after link */ + + /* connect to last table, if there is one */ + if (h) + { + x[h] = i; /* save pattern for backing up */ + r.b = (uch)l; /* bits to dump before this table */ + r.e = (uch)(16 + j); /* bits in this table */ + r.v.t = q; /* pointer to this table */ + j = i >> (w - l); /* (get around Turbo C bug) */ + u[h-1][j] = r; /* connect to last table */ + } + } + + /* set up table entry in r */ + r.b = (uch)(k - w); + if (p >= v + n) + r.e = 99; /* out of values--invalid code */ + else if (*p < s) + { + r.e = (uch)(*p < 256 ? 16 : 15); /* 256 is end-of-block code */ + r.v.n = (ush)(*p); /* simple code is just the value */ + p++; /* one compiler does not like *p++ */ + } + else + { + r.e = (uch)e[*p - s]; /* non-simple--look up in lists */ + r.v.n = d[*p++ - s]; + } + + /* fill code-like entries with r */ + f = 1 << (k - w); + for (j = i >> w; j < z; j += f) + q[j] = r; + + /* backwards increment the k-bit code i */ + for (j = 1 << (k - 1); i & j; j >>= 1) + i ^= j; + i ^= j; + + /* backup over finished tables */ + while ((i & ((1 << w) - 1)) != x[h]) + { + h--; /* don't need to update q */ + w -= l; + } + } + } + + + /* Return true (1) if we were given an incomplete table */ + return y != 0 && g != 1; +} + + + +STATIC int huft_free(t) +struct huft *t; /* table to free */ +/* Free the malloc'ed tables built by huft_build(), which makes a linked + list of the tables it made, with the links in a dummy first entry of + each table. */ +{ + register struct huft *p, *q; + + + /* Go through linked list, freeing from the malloced (t[-1]) address. */ + p = t; + while (p != (struct huft *)NULL) + { + q = (--p)->v.t; + free((char*)p); + p = q; + } + return 0; +} + + +STATIC int inflate_codes(tl, td, bl, bd) +struct huft *tl, *td; /* literal/length and distance decoder tables */ +int bl, bd; /* number of bits decoded by tl[] and td[] */ +/* inflate (decompress) the codes in a deflated (compressed) block. + Return an error code or zero if it all goes ok. */ +{ + register unsigned e; /* table entry flag/number of extra bits */ + unsigned n, d; /* length and index for copy */ + unsigned w; /* current window position */ + struct huft *t; /* pointer to table entry */ + unsigned ml, md; /* masks for bl and bd bits */ + register ulg b; /* bit buffer */ + register unsigned k; /* number of bits in bit buffer */ + + + /* make local copies of globals */ + b = bb; /* initialize bit buffer */ + k = bk; + w = wp; /* initialize window position */ + + /* inflate the coded data */ + ml = mask_bits[bl]; /* precompute masks for speed */ + md = mask_bits[bd]; + for (;;) /* do until end of block */ + { + NEEDBITS((unsigned)bl) + if ((e = (t = tl + ((unsigned)b & ml))->e) > 16) + { + do { + if (e == 99) + { + return 1; + } + DUMPBITS(t->b) + e -= 16; + NEEDBITS(e) + } while ((e = (t = t->v.t + ((unsigned)b & mask_bits[e]))->e) > 16); + } + DUMPBITS(t->b) + if (e == 16) /* then it's a literal */ + { + slide[w++] = (uch)t->v.n; + /* Tracevv((stderr, "%c", slide[w-1])); */ + if (w == WSIZE) + { + flush_output(w); + w = 0; + } + } + else /* it's an EOB or a length */ + { + /* exit if end of block */ + if (e == 15) + { + break; + } + + /* get length of block to copy */ + NEEDBITS(e) + n = t->v.n + ((unsigned)b & mask_bits[e]); + DUMPBITS(e); + + /* decode distance of block to copy */ + NEEDBITS((unsigned)bd) + if ((e = (t = td + ((unsigned)b & md))->e) > 16) + { + do { + if (e == 99) + { + return 1; + } + DUMPBITS(t->b) + e -= 16; + NEEDBITS(e) + } while ((e = (t = t->v.t + ((unsigned)b & mask_bits[e]))->e) > 16); + } + DUMPBITS(t->b) + NEEDBITS(e) + d = w - t->v.n - ((unsigned)b & mask_bits[e]); + DUMPBITS(e) + /* Tracevv((stderr,"\\[%d,%d]", w-d, n)); */ + + /* do the copy */ + do { + n -= (e = (e = WSIZE - ((d &= WSIZE-1) > w ? d : w)) > n ? n : e); +#if !defined(NOMEMCPY) && !defined(DEBUG) + if (w - d >= e) /* (this test assumes unsigned comparison) */ + { + memcpy(slide + w, slide + d, e); + w += e; + d += e; + } + else /* do it slow to avoid memcpy() overlap */ +#endif /* !NOMEMCPY */ + do { + slide[w++] = slide[d++]; + /* Tracevv((stderr, "%c", slide[w-1])); */ + } while (--e); + + if (w == WSIZE) + { + flush_output(w); + w = 0; + } + } while (n); + } + } + + + /* restore the globals from the locals */ + wp = w; /* restore global window pointer */ + bb = b; /* restore global bit buffer */ + bk = k; + + /* done */ + return 0; +} + + + +STATIC int inflate_stored() +/* "decompress" an inflated type 0 (stored) block. */ +{ + unsigned n; /* number of bytes in block */ + unsigned w; /* current window position */ + register ulg b; /* bit buffer */ + register unsigned k; /* number of bits in bit buffer */ + + + /* make local copies of globals */ + b = bb; /* initialize bit buffer */ + k = bk; + w = wp; /* initialize window position */ + + + /* go to byte boundary */ + n = k & 7; + DUMPBITS(n); + + + /* get the length and its complement */ + NEEDBITS(16) + n = ((unsigned)b & 0xffff); + DUMPBITS(16) + NEEDBITS(16) + if (n != (unsigned)((~b) & 0xffff)) + return 1; /* error in compressed data */ + DUMPBITS(16) + + + /* read and output the compressed data */ + while (n--) + { + NEEDBITS(8) + slide[w++] = (uch)b; + if (w == WSIZE) + { + flush_output(w); + w = 0; + } + DUMPBITS(8) + } + + + /* restore the globals from the locals */ + wp = w; /* restore global window pointer */ + bb = b; /* restore global bit buffer */ + bk = k; + + return 0; +} + + + +STATIC int inflate_fixed() +/* decompress an inflated type 1 (fixed Huffman codes) block. We should + either replace this with a custom decoder, or at least precompute the + Huffman tables. */ +{ + int i; /* temporary variable */ + struct huft *tl; /* literal/length code table */ + struct huft *td; /* distance code table */ + int bl; /* lookup bits for tl */ + int bd; /* lookup bits for td */ + unsigned l[288]; /* length list for huft_build */ + + + /* set up literal table */ + for (i = 0; i < 144; i++) + l[i] = 8; + for (; i < 256; i++) + l[i] = 9; + for (; i < 280; i++) + l[i] = 7; + for (; i < 288; i++) /* make a complete, but wrong code set */ + l[i] = 8; + bl = 7; + if ((i = huft_build(l, 288, 257, cplens, cplext, &tl, &bl)) != 0) + return i; + + + /* set up distance table */ + for (i = 0; i < 30; i++) /* make an incomplete code set */ + l[i] = 5; + bd = 5; + if ((i = huft_build(l, 30, 0, cpdist, cpdext, &td, &bd)) > 1) + { + huft_free(tl); + + return i; + } + + + /* decompress until an end-of-block code */ + { + int iii; + + iii = inflate_codes(tl, td, bl, bd); + if (iii) + return 1; + } + + /* free the decoding tables, return */ + huft_free(tl); + huft_free(td); + return 0; +} + + + +STATIC int inflate_dynamic() +/* decompress an inflated type 2 (dynamic Huffman codes) block. */ +{ + int i; /* temporary variables */ + unsigned j; + unsigned l; /* last length */ + unsigned m; /* mask for bit lengths table */ + unsigned n; /* number of lengths to get */ + struct huft *tl; /* literal/length code table */ + struct huft *td; /* distance code table */ + int bl; /* lookup bits for tl */ + int bd; /* lookup bits for td */ + unsigned nb; /* number of bit length codes */ + unsigned nl; /* number of literal/length codes */ + unsigned nd; /* number of distance codes */ +#ifdef PKZIP_BUG_WORKAROUND + unsigned ll[288+32]; /* literal/length and distance code lengths */ +#else + unsigned ll[286+30]; /* literal/length and distance code lengths */ +#endif + register ulg b; /* bit buffer */ + register unsigned k; /* number of bits in bit buffer */ + + + /* make local bit buffer */ + b = bb; + k = bk; + + /* read in table lengths */ + NEEDBITS(5) + nl = 257 + ((unsigned)b & 0x1f); /* number of literal/length codes */ + DUMPBITS(5) + NEEDBITS(5) + nd = 1 + ((unsigned)b & 0x1f); /* number of distance codes */ + DUMPBITS(5) + NEEDBITS(4) + nb = 4 + ((unsigned)b & 0xf); /* number of bit length codes */ + DUMPBITS(4) +#ifdef PKZIP_BUG_WORKAROUND + if (nl > 288 || nd > 32) +#else + if (nl > 286 || nd > 30) +#endif + return 1; /* bad lengths */ + + + /* read in bit-length-code lengths */ + for (j = 0; j < nb; j++) + { + NEEDBITS(3) + ll[border[j]] = (unsigned)b & 7; + DUMPBITS(3) + } + for (; j < 19; j++) + ll[border[j]] = 0; + + + /* build decoding table for trees--single level, 7 bit lookup */ + bl = 7; + if ((i = huft_build(ll, 19, 19, NULL, NULL, &tl, &bl)) != 0) + { + if (i == 1) + huft_free(tl); + return i; /* incomplete code set */ + } + + + /* read in literal and distance code lengths */ + n = nl + nd; + m = mask_bits[bl]; + i = l = 0; + while ((unsigned)i < n) + { + NEEDBITS((unsigned)bl) + j = (td = tl + ((unsigned)b & m))->b; + DUMPBITS(j) + j = td->v.n; + if (j < 16) /* length of code in bits (0..15) */ + ll[i++] = l = j; /* save last length in l */ + else if (j == 16) /* repeat last length 3 to 6 times */ + { + NEEDBITS(2) + j = 3 + ((unsigned)b & 3); + DUMPBITS(2) + if ((unsigned)i + j > n) + return 1; + while (j--) + ll[i++] = l; + } + else if (j == 17) /* 3 to 10 zero length codes */ + { + NEEDBITS(3) + j = 3 + ((unsigned)b & 7); + DUMPBITS(3) + if ((unsigned)i + j > n) + return 1; + while (j--) + ll[i++] = 0; + l = 0; + } + else /* j == 18: 11 to 138 zero length codes */ + { + NEEDBITS(7) + j = 11 + ((unsigned)b & 0x7f); + DUMPBITS(7) + if ((unsigned)i + j > n) + return 1; + while (j--) + ll[i++] = 0; + l = 0; + } + } + + + /* free decoding table for trees */ + huft_free(tl); + + + /* restore the global bit buffer */ + bb = b; + bk = k; + + + /* build the decoding tables for literal/length and distance codes */ + bl = lbits; + if ((i = huft_build(ll, nl, 257, cplens, cplext, &tl, &bl)) != 0) + { + if (i == 1) { + /* error(" incomplete literal tree\n"); */ + huft_free(tl); + } + return i; /* incomplete code set */ + } + bd = dbits; + if ((i = huft_build(ll + nl, nd, 0, cpdist, cpdext, &td, &bd)) != 0) + { + if (i == 1) { + /* error(" incomplete distance tree\n"); */ +#ifdef PKZIP_BUG_WORKAROUND + i = 0; + } +#else + huft_free(td); + } + huft_free(tl); + return i; /* incomplete code set */ +#endif + } + + /* decompress until an end-of-block code */ + { + int iii; + iii = inflate_codes(tl, td, bl, bd); + if (iii ) + return 1; + } + + /* free the decoding tables, return */ + huft_free(tl); + huft_free(td); + + return 0; +} + + + +STATIC int inflate_block(e) +int *e; /* last block flag */ +/* decompress an inflated block */ +{ + unsigned t; /* block type */ + register ulg b; /* bit buffer */ + register unsigned k; /* number of bits in bit buffer */ + + + /* make local bit buffer */ + b = bb; + k = bk; + + /* read in last block bit */ + NEEDBITS(1); + *e = (int)b & 1; + DUMPBITS(1); + + + /* read in block type */ + NEEDBITS(2); + t = (unsigned)b & 3; + DUMPBITS(2); + + + /* restore the global bit buffer */ + bb = b; + bk = k; + + /* inflate that block type */ + if (t == 2) + return inflate_dynamic(); + if (t == 0) + return inflate_stored(); + if (t == 1) + return inflate_fixed(); + + + /* bad block type */ + return 2; +} + + + +STATIC int inflate() +/* decompress an inflated entry */ +{ + int e; /* last block flag */ + int r; /* result code */ + unsigned h; /* maximum struct huft's malloc'ed */ + void *ptr; + + /* initialize window, bit buffer */ + wp = 0; + bk = 0; + bb = 0; + + /* Initialize crc table */ + makecrc(); + + + /* decompress until the last block */ + h = 0; + do { + hufts = 0; + gzip_mark(&ptr); + r = inflate_block(&e); + if (r != 0) { + gzip_release(&ptr); + return r; + } + gzip_release(&ptr); + if (hufts > h) + h = hufts; + } while (!e); + + /* Undo too much lookahead. The next read will be byte aligned so we + * can discard unused bits in the last meaningful byte. + */ + while (bk >= 8) { + bk -= 8; + inptr--; + } + + /* flush out slide */ + flush_output(wp); + + + /* return success */ +#ifdef DEBUG + fprintf(stderr, "<%u> ", h); +#endif /* DEBUG */ + return 0; +} + +/********************************************************************** + * + * The following are support routines for inflate.c + * + **********************************************************************/ + +static ulg crc_32_tab[256]; +static ulg crc; /* initialized in makecrc() so it'll reside in bss */ +#define CRC_VALUE (crc ^ 0xffffffffL) + +/* + * Code to compute the CRC-32 table. Borrowed from + * gzip-1.0.3/makecrc.c. + */ + +static void +makecrc(void) +{ +/* Not copyrighted 1990 Mark Adler */ + + unsigned long c; /* crc shift register */ + unsigned long e; /* polynomial exclusive-or pattern */ + int i; /* counter for all possible eight bit values */ + int k; /* byte being shifted into crc apparatus */ + + /* terms of polynomial defining this crc (except x^32): */ + static const int p[] = {0,1,2,4,5,7,8,10,11,12,16,22,23,26}; + + /* Make exclusive-or pattern from polynomial */ + e = 0; + for (i = 0; i < sizeof(p)/sizeof(int); i++) + e |= 1L << (31 - p[i]); + + crc_32_tab[0] = 0; + + for (i = 1; i < 256; i++) + { + c = 0; + for (k = i | 256; k != 1; k >>= 1) + { + c = c & 1 ? (c >> 1) ^ e : c >> 1; + if (k & 1) + c ^= e; + } + crc_32_tab[i] = c; + } + + /* this is initialized here so this code could reside in ROM */ + crc = (ulg)0xffffffffL; /* shift register contents */ +} + +/* gzip flag byte */ +#define ASCII_FLAG 0x01 /* bit 0 set: file probably ASCII text */ +#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */ +#define EXTRA_FIELD 0x04 /* bit 2 set: extra field present */ +#define ORIG_NAME 0x08 /* bit 3 set: original file name present */ +#define COMMENT 0x10 /* bit 4 set: file comment present */ +#define ENCRYPTED 0x20 /* bit 5 set: file is encrypted */ +#define RESERVED 0xC0 /* bit 6,7: reserved */ + +/* + * Do the uncompression! + */ +static int gunzip(void) +{ + uch flags; + unsigned char magic[2]; /* magic header */ + char method; + ulg orig_crc = 0; /* original crc */ + ulg orig_len = 0; /* original uncompressed length */ + int res; + + magic[0] = (unsigned char)get_byte(); + magic[1] = (unsigned char)get_byte(); + method = (unsigned char)get_byte(); + + + if (magic[0] != 037 || + ((magic[1] != 0213) && (magic[1] != 0236))) { + /* error("bad gzip magic numbers"); */ + //bvb printf("Compressed Kernel image Magic number error: 0x%x 0x%x\n", + //bvb (unsigned int)magic[0], (unsigned int)magic[1]); + return -1; + } + + /* We only support method #8, DEFLATED */ + if (method != 8) { + /* error("internal error, invalid method"); */ + //bvb printf("Kernel Compression Method number is %d(must be 8)\n", + //bvb (unsigned int) method); + + return -1; + } + + flags = (uch)get_byte(); + if ((flags & ENCRYPTED) != 0) { + /* error("Input is encrypted\n"); */ + return -1; + } + if ((flags & CONTINUATION) != 0) { + /* error("Multi part input\n"); */ + return -1; + } + if ((flags & RESERVED) != 0) { + /* error("Input has invalid flags\n"); */ + return -1; + } + (ulg)get_byte(); /* Get timestamp */ + /* bvb + ((ulg)get_byte()) << 8; + ((ulg)get_byte()) << 16; + ((ulg)get_byte()) << 24; + */ + (ulg)get_byte(); + (ulg)get_byte(); + (ulg)get_byte(); + + (void)get_byte(); /* Ignore extra flags for the moment */ + (void)get_byte(); /* Ignore OS type for the moment */ + + if ((flags & EXTRA_FIELD) != 0) { + unsigned len = (unsigned)get_byte(); + len |= ((unsigned)get_byte())<<8; + while (len--) (void)get_byte(); + } + + /* Get original file name if it was truncated */ + if ((flags & ORIG_NAME) != 0) { + /* Discard the old name */ + while (get_byte() != 0) /* null */ ; + } + + /* Discard file comment if any */ + if ((flags & COMMENT) != 0) { + while (get_byte() != 0) /* null */ ; + } + + /* Decompress */ + res = inflate(); + if (res) { + switch (res) { + case 0: + break; + case 1: + //bvb printf("Error: invalid compressed format (err=1)\n"); + break; + case 2: + //bvb printf("Error: invalid compressed format (err=2)\n"); + break; + case 3: + //bvb printf("Error: out of memory\n"); + break; + default: + //bvb printf("Error: invalid compressed format (other)\n"); + break; + } + return -1; + } + + /* Get the crc and original length */ + /* crc32 (see algorithm.doc) + * uncompressed input size modulo 2^32 + */ + orig_crc = (ulg) get_byte(); + orig_crc |= (ulg) get_byte() << 8; + orig_crc |= (ulg) get_byte() << 16; + orig_crc |= (ulg) get_byte() << 24; + + orig_len = (ulg) get_byte(); + orig_len |= (ulg) get_byte() << 8; + orig_len |= (ulg) get_byte() << 16; + orig_len |= (ulg) get_byte() << 24; + + /* Validate decompression */ + if (orig_crc != CRC_VALUE) { + //bvb printf("ERROR: crc error\n"); + return -1; + } + if (orig_len != bytes_out) { + //bvb printf("Error: CRC length error\n"); + return -1; + } + //bvb printf("Kernel Compression OK\n"); + return 0; +} + +int tikernelunzip(int argc, char *argv[], char *arge[]) +{ + extern unsigned int _ftext; + extern uch kernelimage[]; + uch *in, *out; + int status; + //bvb int *p; + + printf("Launching kernel decompressor.\n"); + + // out = (uch *)OUTBUF_ADDR; + out = (uch *)&_ftext; + in = &(kernelimage[0]); /* temp test file */ + + status = tidecompress(in, out); + + if (status == 0) + { + //bvb printf("Kernel Decompressor was successful, addr:0x%x\n", + //bvb (unsigned int)out); + //bvb return(0); + + printf("Kernel decompressor was successful ... launching kernel.\n"); + + ke = ( void(*)(int, char *[],char*[]))kernel_entry; + (*ke)(argc,argv,arge); + + return (0); + + } + else + { + //bvb printf("Error in compression: status=0x%x\n", status); + printf("Error in decompression!\n"); + return(1); + } + + //bvb p = (int *)0xb6000000; + //bvb *p = 0x46464646; + +} + + +int tidecompress(uch *indata, uch *outdata) +{ + extern unsigned int inflate_free_memory_start; + extern unsigned int inflate_slide_window; + + int i; + //bvb int *p; + //bvb int status; + int j; + + + j = 0; + //bvb p = (int *)0xb6000000; + //bvb *p = 0x556e7a70; + + /* Setup memory limits */ + //bvb freememstart = (void *)FREEMEM_START; + freememstart = (void *)&inflate_free_memory_start; + window = (uch *)&inflate_slide_window; /* only if using raw memory */ + + bytes_out = 0; + output_ptr = 0; + output_data = outdata; + input_data = indata; + + i = gunzip(); + return(i); +} + + +void printf(char *ptr) +{ + unsigned int *tempptr = (unsigned int *)0x90000534; + prnt = ( void (*)(unsigned int, char *)) *tempptr; + (*prnt)(0,ptr); +} + + +uch get_byte() +{ + uch c; + + c = *input_data; + input_data++; + + return(c); +} + +void memzero(int table[], int size) +{ + int i; + int j = size/4; + + for(i=0; i<j; i++) + { + table[i] = 0; + } +} + +/* =========================================================================== + * Write the output window window[0..outcnt-1] and update crc and bytes_out. + * (Used for the decompressed data only.) + */ +void flush_window() +{ + ulg c = crc; + unsigned n; + uch *in, *out, ch; + + + in = window; + out = &output_data[output_ptr]; + for (n = 0; n < outcnt; n++) { + ch = *out++ = *in++; + c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8); + } + crc = c; + bytes_out += (ulg)outcnt; + output_ptr += (ulg)outcnt; + outcnt = 0; + + //bvb printf("Bytes uncompressed: %d\r", bytes_out); +} + +static void gzip_mark(void **ptr) +{ + /* arch_decomp_wdog(); */ + *ptr = (void *) free_mem_ptr; +} + +static void gzip_release(void **ptr) +{ + /* arch_decomp_wdog(); */ + free_mem_ptr = (long) *ptr; +} + +void *malloc(int size) +{ + uch *p; + void *r; + + r = freememstart; + p = (uch *)r; + + p = p + size; + freememstart = (void *)p; + + return(r); +} + +void free(void *p) +{ +} + + diff --git a/openwrt/target/linux/image/ar7/src/srec2bin.c b/openwrt/target/linux/image/ar7/src/srec2bin.c new file mode 100644 index 0000000..0b27ca9 --- /dev/null +++ b/openwrt/target/linux/image/ar7/src/srec2bin.c @@ -0,0 +1,638 @@ +/*-----------------------------------------------------------------------------*/ +/* */ +/* Copyright (C) 1999-2000 by Texas Instruments, Inc. All rights reserved. */ +/* */ +/* IMPORTANT - READ CAREFULLY BEFORE PROCEEDING TO USE SOFTWARE. */ +/* */ +/* This document is displayed for you to read prior to using the software */ +/* and documentation. By using the software and documentation, or opening */ +/* the sealed packet containing the software, or proceeding to download the */ +/* software from a Bulletin Board System(BBS) or a WEB Server, you agree to */ +/* abide by the following Texas Instruments License Agreement. If you choose */ +/* not to agree with these provisions, promptly discontinue use of the */ +/* software and documentation and return the material to the place you */ +/* obtained it. */ +/* */ +/* Texas Instruments License Agreement */ +/* */ +/* 1. License - Texas Instruments (hereinafter "TI"), grants you a license */ +/* to use the software program and documentation in this package ("Licensed */ +/* Materials") for Texas Instruments broadband products. */ +/* */ +/* 2. Restrictions - You may not reverse-assemble or reverse-compile the */ +/* Licensed Materials provided in object code or executable format. You may */ +/* not sublicense, transfer, assign, rent, or lease the Licensed Materials */ +/* or this Agreement without written permission from TI. */ +/* */ +/* 3. Copyright - The Licensed Materials are copyrighted. Accordingly, you */ +/* may either make one copy of the Licensed Materials for backup and/or */ +/* archival purposes or copy the Licensed Materials to another medium and */ +/* keep the original Licensed Materials for backup and/or archival purposes. */ +/* */ +/* 4. Runtime and Applications Software - You may create modified or */ +/* derivative programs of software identified as Runtime Libraries or */ +/* Applications Software, which, in source code form, remain subject to this */ +/* Agreement, but object code versions of such derivative programs are not */ +/* subject to this Agreement. */ +/* */ +/* 5. 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Compliance with such regulations is */ +/* your responsibility. */ +/* */ +/* *** IMPORTANT NOTICE *** */ +/* */ +/* Texas Instruments (TI) reserves the right to make changes to or to */ +/* discontinue any semiconductor product or service identified in this */ +/* publication without notice. TI advises its customers to obtain the latest */ +/* version of the relevant information to verify, before placing orders, */ +/* that the information being relied upon is current. */ +/* */ +/* TI warrants performance of its semiconductor products and related */ +/* software to current specifications in accordance with TI's standard */ +/* warranty. Testing and other quality control techniques are utilized to */ +/* the extent TI deems necessary to support this warranty. Unless mandated */ +/* by government requirements, specific testing of all parameters of each */ +/* device is not necessarily performed. */ +/* */ +/* Please be aware that Texas Instruments products are not intended for use */ +/* in life-support appliances, devices, or systems. Use of a TI product in */ +/* such applications without the written approval of the appropriate TI */ +/* officer is prohibited. Certain applications using semiconductor devices */ +/* may involve potential risks of injury, property damage, or loss of life. */ +/* In order to minimize these risks, adequate design and operating */ +/* safeguards should be provided by the customer to minimize inherent or */ +/* procedural hazards. Inclusion of TI products in such applications is */ +/* understood to be fully at the risk of the customer using TI devices or */ +/* systems. */ +/* */ +/* TI assumes no liability for TI applications assistance, customer product */ +/* design, software performance, or infringement of patents or services */ +/* described herein. Nor does TI warrant or represent that license, either */ +/* expressed or implied, is granted under any patent right, copyright, mask */ +/* work right, or other intellectual property right of TI covering or */ +/* relating to any combination, machine, or process in which such */ +/* semiconductor products or services might be or are used. */ +/* */ +/* All company and/or product names are trademarks and/or registered */ +/* trademarks of their respective manaufacturers. */ +/* */ +/*-----------------------------------------------------------------------------*/ + +// + +// #include <string.h> +#include <stdio.h> +#include <ctype.h> + +//Rev 0.1 Original +// 8 Jan 2001 MJH Added code to write data to Binary file +// note: outputfile is name.bin, where name is first part +// of input file. ie tmp.rec -> tmp.bin +// +// srec2bin <input SREC file> <Output Binary File> <If Present, Big Endian> +// +// TAG +// bit32u TAG_BIG = 0xDEADBE42; +// bit32u TAG_LITTLE = 0xFEEDFA42; +// +// File Structure +// +// TAG : 32 Bits +// [DATA RECORDS] +// +// Data Records Structure +// +// LENGTH : 32 Bits <- Length of DATA, excludes ADDRESS and CHECKSUM +// ADDRESS : 32 Bits +// DATA : 8 Bits * LENGTH +// CHECKSUM: 32 Bits <- 0 - (Sum of Length --> End of Data) +// +// Note : If Length == 0, Address will be Program Start +// +// +// +// +// + +#define MajRevNum 0 +#define MinRevNum 2 + + +#define EndianSwitch(x) ((x >> 24) | (x << 24) | ((x << 8) & (0x00FF0000)) | ((x >> 8) & (0x0000FF00)) ) + +typedef unsigned char bit8u; +typedef unsigned int bit32u; +typedef int bit32; + +#define FALSE 0 +#define TRUE (!FALSE) + + +bit32u CheckSum; +int RecStart; +int debug; +int verbose; + +FILE *OpenOutputFile( char *Name ); +FILE *fOut; +bit32u RecLength=0; + +bit32u AddressCurrent; + +bit32u gh(char *cp,int nibs); + +int BigEndian; + +int inputline; + +// char buf[16*1024]; + +char buffer[2048]; +char *cur_ptr; +int cur_line=0; +int cur_len=0; + +int s1s2s3_total=0; + +bit32u PBVal; +int PBValid; +bit32u PBAdr; + + +void dumpfTell(char *s, bit32u Value) +{ + int Length; + Length = (int) RecLength; + if (debug) + printf("[%s ] ftell()[0x%08lX] Length[0x%4X] Length[%4d] Value[0x%08x]\n", + s, ftell(fOut), Length, Length, Value); +} + +void DispHex(bit32u Hex) +{ +// printf("%X", Hex); +} + +void WaitDisplay(void) +{ + static int Count=0; + static int Index=0; + char iline[]={"-\\|/"}; + + Count++; + if ((Count % 32)==0) + { + if (verbose) + printf("%c%c",iline[Index++],8); + Index &= 3; + } +} + + +void binOut32 ( bit32u Data ) +{ +// On UNIX machine all 32bit writes need ENDIAN switched +// Data = EndianSwitch(Data); +// fwrite( &Data, sizeof(bit32u), 1, fOut); + + char sdat[4]; + int i; + + for(i=0;i<4;i++) + sdat[i]=(char)(Data>>(i*8)); + fwrite( sdat, 1, 4, fOut); + dumpfTell("Out32" , Data); +} + +// Only update RecLength on Byte Writes +// All 32 bit writes will be for Length etc + +void binOut8 ( bit8u Data ) +{ + int n; + dumpfTell("B4Data" , (bit32u) (Data & 0xFF) ); + n = fwrite( &Data, sizeof(bit8u), 1, fOut); + if (n != 1) + printf("Error in writing %X for Address 0x%8X\n", Data, AddressCurrent); + RecLength += 1; +} + +// Currently ONLY used for outputting Program Start + +void binRecStart(bit32u Address) +{ + RecLength = 0; + CheckSum = Address; + RecStart = TRUE; + + if (debug) + printf("[RecStart] CheckSum[0x%08X] Length[%4d] Address[0x%08X]\n", + CheckSum, RecLength, Address); + + + dumpfTell("RecLength", RecLength); + binOut32( RecLength ); + dumpfTell("Address", Address); + binOut32( Address ); +} + +void binRecEnd(void) +{ + long RecEnd; + + if (!RecStart) // if no record started, do not end it + { + return; + } + + RecStart = FALSE; + + + RecEnd = ftell(fOut); // Save Current position + + if (debug) + printf("[RecEnd ] CheckSum[0x%08X] Length[%4d] Length[0x%X] RecEnd[0x%08lX]\n", + CheckSum, RecLength, RecLength, RecEnd); + + fseek( fOut, -(RecLength), SEEK_CUR); // move back Start Of Data + + dumpfTell("Data ", -1); + + fseek( fOut, -4, SEEK_CUR); // move back Start Of Address + + dumpfTell("Address ", -1); + + fseek( fOut, -4, SEEK_CUR); // move back Start Of Length + + dumpfTell("Length ", -1); + + binOut32( RecLength ); + + fseek( fOut, RecEnd, SEEK_SET); // move to end of Record + + CheckSum += RecLength; + + CheckSum = ~CheckSum + 1; // Two's complement + + binOut32( CheckSum ); + + if (verbose) + printf("[Created Record of %d Bytes with CheckSum [0x%8X]\n", RecLength, CheckSum); +} + +void binRecOutProgramStart(bit32u Address) +{ + if (Address != (AddressCurrent+1)) + { + binRecEnd(); + binRecStart(Address); + } + AddressCurrent = Address; +} +void binRecOutByte(bit32u Address, bit8u Data) +{ + // If Address is one after Current Address, output Byte + // If not, close out last record, update Length, write checksum + // Then Start New Record, updating Current Address + + if (Address != (AddressCurrent+1)) + { + binRecEnd(); + binRecStart(Address); + } + AddressCurrent = Address; + CheckSum += Data; + binOut8( Data ); +} + +//============================================================================= +// SUPPORT FUNCTIONS +//============================================================================= +int readline(FILE *fil,char *buf,int len) +{ + int rlen; + + rlen=0; + if (len==0) return(0); + while(1) + { + if (cur_len==0) + { + cur_len=fread(buffer, 1, sizeof(buffer), fil); + if (cur_len==0) + { + if (rlen) + { + *buf=0; + return(rlen); + } + return(-1); + } + cur_ptr=buffer; + } + if (cur_len) + { + if (*cur_ptr=='\n') + { + *buf=0; + cur_ptr++; + cur_len--; + return(rlen); + } + else + { + if ((len>1)&&(*cur_ptr!='\r')) + { + *buf++=*cur_ptr++; + len--; + } + else + cur_ptr++; + + rlen++; + cur_len--; + } + } + else + { + *buf=0; + cur_ptr++; + cur_len--; + return(rlen); + } + } +} + + +int SRLerrorout(char *c1,char *c2) +{ + printf("\nERROR: %s - '%s'.",c1,c2); + return(FALSE); +} + + +int checksum(char *cp,int count) +{ + char *scp; + int cksum; + int dum; + + scp=cp; + while(*scp) + { + if (!isxdigit(*scp++)) + return(SRLerrorout("Invalid hex digits",cp)); + } + scp=cp; + + cksum=count; + + while(count) + { + cksum += gh(scp,2); + if (count == 2) + dum = ~cksum; + scp += 2; + count--; + } + cksum&=0x0ff; + // printf("\nCk:%02x",cksum); + return(cksum==0x0ff); +} + +bit32u gh(char *cp,int nibs) +{ + int i; + bit32u j; + + j=0; + + for(i=0;i<nibs;i++) + { + j<<=4; + if ((*cp>='a')&&(*cp<='z')) *cp &= 0x5f; + if ((*cp>='0')&&(*cp<='9')) + j += (*cp-0x30); + else + if ((*cp>='A')&&(*cp<='F')) + j += (*cp-0x37); + else + SRLerrorout("Bad Hex char", cp); + cp++; + } + return(j); +} + + +//============================================================================= +// PROCESS SREC LINE +//============================================================================= + +int srecLine(char *pSrecLine) +{ + char *scp,ch; + int itmp,count,dat; + bit32u adr; + static bit32u RecordCounter=0; + + cur_line++; + scp=pSrecLine; + + if (*pSrecLine!='S') + return(SRLerrorout("Not an Srecord file",scp)); + pSrecLine++; + if (strlen(pSrecLine)<4) + return(SRLerrorout("Srecord too short",scp)); + + ch=*pSrecLine++; + + count=gh(pSrecLine,2); + + pSrecLine += 2; + + // if(debug) + // printf("count %d, strlen(pSrecLine) = %d, pSrecLine =[%s]\n", count, strlen(pSrecLine), pSrecLine); + RecordCounter++; + DispHex(RecordCounter); + + if ((count*2) != strlen(pSrecLine)) return(SRLerrorout("Count field larger than record",scp)); + + if (!checksum(pSrecLine, count)) return(SRLerrorout("Bad Checksum",scp)); + + switch(ch) + { + case '0': if (count<3) return(SRLerrorout("Invalid Srecord count field",scp)); + itmp=gh(pSrecLine,4); pSrecLine+=4; count-=2; + if (itmp) return(SRLerrorout("Srecord 1 address not zero",scp)); + break; + case '1': if (count<3) return(SRLerrorout("Invalid Srecord count field",scp)); + return(SRLerrorout("Srecord Not valid for MIPS",scp)); + break; + case '2': if (count<4) return(SRLerrorout("Invalid Srecord count field",scp)); + return(SRLerrorout("Srecord Not valid for MIPS",scp)); + break; + case '3': if (count<5) return(SRLerrorout("Invalid Srecord count field",scp)); + adr=gh(pSrecLine,8); pSrecLine+=8; count-=4; + count--; + while(count) + { + dat=gh(pSrecLine,2); pSrecLine+=2; count--; + binRecOutByte(adr, (char) (dat & 0xFF)); + adr++; + } + s1s2s3_total++; + break; + case '4': return(SRLerrorout("Invalid Srecord type",scp)); + break; + case '5': if (count<3) return(SRLerrorout("Invalid Srecord count field",scp)); + itmp=gh(pSrecLine,4); pSrecLine+=4; count-=2; + if (itmp|=s1s2s3_total) return(SRLerrorout("Incorrect number of S3 Record processed",scp)); + break; + case '6': return(SRLerrorout("Invalid Srecord type",scp)); + break; + case '7': // PROGRAM START + if (count<5) return(SRLerrorout("Invalid Srecord count field",scp)); + adr=gh(pSrecLine,8); pSrecLine+=8; count-=4; + if (count!=1) return(SRLerrorout("Invalid Srecord count field",scp)); + binRecOutProgramStart(adr); + break; + case '8': if (count<4) return(SRLerrorout("Invalid Srecord count field",scp)); + return(SRLerrorout("Srecord Not valid for MIPS",scp)); + break; + case '9': if (count<3) return(SRLerrorout("Invalid Srecord count field",scp)); + return(SRLerrorout("Srecord Not valid for MIPS",scp)); + break; + default: + break; + } + return(TRUE); +} + + +//============================================================================= +// MAIN LOGIC, READS IN LINE AND OUTPUTS BINARY +//============================================================================= + +int srec2bin(int argc,char *argv[],int verbose) +{ + int i,rlen,sts; + FILE *fp; + char ac; + char buff[256]; + bit32u TAG_BIG = 0xDEADBE42; + bit32u TAG_LITTLE = 0xFEEDFA42; + + bit32u Tag; + + + if(argc < 3) + { + printf("\nError: <srec2bin <srec input file> <bin output file>\n\n"); + return(0); + } + + if (argc > 3) BigEndian=TRUE; else BigEndian=FALSE; + + if (BigEndian) + Tag = TAG_BIG; + else + Tag = TAG_LITTLE; + + if (verbose) + printf("\nEndian: %s, Tag is 0x%8X\n",(BigEndian)?"BIG":"LITTLE", Tag); + + fp = fopen(argv[1],"rt"); + + if (fp==NULL) + { + printf("\nError: Opening input file, %s.", argv[1]); + return(0); + } + + fOut = fopen( argv[2], "wb"); + + if (fOut==NULL) + { + printf("\nError: Opening Output file, %s.", argv[2]); + if(fp) fclose(fp); + return(0); + } + + RecStart = FALSE; + + AddressCurrent = 0xFFFFFFFFL; + + // Setup Tag + + dumpfTell("Tag", Tag); + + binOut32(Tag); + + + inputline=0; + sts=TRUE; + + rlen = readline(fp,buff,sizeof buff); + + while( (sts) && (rlen != -1)) + { + if (strlen(buff)) + { + sts &= srecLine(buff); + WaitDisplay(); + } + rlen = readline(fp,buff,sizeof buff); + } + + + // printf("PC: 0x%08X, Length 0x%08X, Tag 0x%08X\n", ProgramStart, RecLength, TAG_LITTLE); + + binRecEnd(); + + if(fp) fclose(fp); + if(fOut) fclose(fOut); + + return(1); +} + +main(int argc, char *argv[]) +{ + debug = TRUE; + debug = FALSE; + verbose = FALSE; + srec2bin(argc,argv,verbose); + return 0; +} + diff --git a/openwrt/target/linux/image/ar7/src/zimage.script.in b/openwrt/target/linux/image/ar7/src/zimage.script.in new file mode 100644 index 0000000..5fb5dcc --- /dev/null +++ b/openwrt/target/linux/image/ar7/src/zimage.script.in @@ -0,0 +1,11 @@ + OUTPUT_FORMAT("@@OUTPUT_FORMAT@@") +OUTPUT_ARCH(mips) + SECTIONS +{ + .data : + { + kernelimage = .; + *(.data) + kernelimage_end = .; + } +} |