Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 186 insertions, 0 deletions

diff --git a/arch/ppc/boot/utils/addSystemMap.c b/arch/ppc/boot/utils/addSystemMap.c
new file mode 100644
index 0000000..4654f89
--- /dev/null
+++ b/arch/ppc/boot/utils/addSystemMap.c
@@ -0,0 +1,186 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <byteswap.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+void xlate( char * inb, char * trb, unsigned len )
+{
+    unsigned i;
+    for (  i=0; i<len; ++i ) {
+	char c = *inb++;
+	char c1 = c >> 4;
+	char c2 = c & 0xf;
+	if ( c1 > 9 )
+	    c1 = c1 + 'A' - 10;
+	else
+	    c1 = c1 + '0';
+	if ( c2 > 9 )
+	    c2 = c2 + 'A' - 10;
+	else
+	    c2 = c2 + '0';
+	*trb++ = c1;
+	*trb++ = c2;
+    }
+    *trb = 0;
+}
+
+#define ElfHeaderSize  (64 * 1024)
+#define ElfPages  (ElfHeaderSize / 4096)
+#define KERNELBASE (0xc0000000)
+
+void get4k( /*istream *inf*/FILE *file, char *buf )
+{
+    unsigned j;
+    unsigned num = fread(buf, 1, 4096, file);
+    for (  j=num; j<4096; ++j )
+	buf[j] = 0;
+}
+
+void put4k( /*ostream *outf*/FILE *file, char *buf )
+{
+    fwrite(buf, 1, 4096, file);
+}
+
+int main(int argc, char **argv)
+{
+    char inbuf[4096];
+    FILE *ramDisk = NULL;
+    FILE *inputVmlinux = NULL;
+    FILE *outputVmlinux = NULL;
+    unsigned i = 0;
+    unsigned long ramFileLen = 0;
+    unsigned long ramLen = 0;
+    unsigned long roundR = 0;
+    unsigned long kernelLen = 0;
+    unsigned long actualKernelLen = 0;
+    unsigned long round = 0;
+    unsigned long roundedKernelLen = 0;
+    unsigned long ramStartOffs = 0;
+    unsigned long ramPages = 0;
+    unsigned long roundedKernelPages = 0;
+    if ( argc < 2 ) {
+	printf("Name of System Map file missing.\n");
+	exit(1);
+    }
+
+    if ( argc < 3 ) {
+	printf("Name of vmlinux file missing.\n");
+	exit(1);
+    }
+
+    if ( argc < 4 ) {
+	printf("Name of vmlinux output file missing.\n");
+	exit(1);
+    }
+
+    ramDisk = fopen(argv[1], "r");
+    if ( ! ramDisk ) {
+	printf("System Map file \"%s\" failed to open.\n", argv[1]);
+	exit(1);
+    }
+    inputVmlinux = fopen(argv[2], "r");
+    if ( ! inputVmlinux ) {
+	printf("vmlinux file \"%s\" failed to open.\n", argv[2]);
+	exit(1);
+    }
+    outputVmlinux = fopen(argv[3], "w");
+    if ( ! outputVmlinux ) {
+	printf("output vmlinux file \"%s\" failed to open.\n", argv[3]);
+	exit(1);
+    }
+    fseek(ramDisk, 0, SEEK_END);
+    ramFileLen = ftell(ramDisk);
+    fseek(ramDisk, 0, SEEK_SET);
+    printf("%s file size = %ld\n", argv[1], ramFileLen);
+
+    ramLen = ramFileLen;
+
+    roundR = 4096 - (ramLen % 4096);
+    if ( roundR ) {
+	printf("Rounding System Map file up to a multiple of 4096, adding %ld\n", roundR);
+	ramLen += roundR;
+    }
+
+    printf("Rounded System Map size is %ld\n", ramLen);
+    fseek(inputVmlinux, 0, SEEK_END);
+    kernelLen = ftell(inputVmlinux);
+    fseek(inputVmlinux, 0, SEEK_SET);
+    printf("kernel file size = %ld\n", kernelLen);
+    if ( kernelLen == 0 ) {
+	printf("You must have a linux kernel specified as argv[2]\n");
+	exit(1);
+    }
+
+    actualKernelLen = kernelLen - ElfHeaderSize;
+
+    printf("actual kernel length (minus ELF header) = %ld\n", actualKernelLen);
+
+    round = actualKernelLen % 4096;
+    roundedKernelLen = actualKernelLen;
+    if ( round )
+	roundedKernelLen += (4096 - round);
+
+    printf("actual kernel length rounded up to a 4k multiple = %ld\n", roundedKernelLen);
+
+    ramStartOffs = roundedKernelLen;
+    ramPages = ramLen / 4096;
+
+    printf("System map pages to copy = %ld\n", ramPages);
+
+    // Copy 64K ELF header
+      for (i=0; i<(ElfPages); ++i) {
+	  get4k( inputVmlinux, inbuf );
+	  put4k( outputVmlinux, inbuf );
+      }
+
+
+
+    roundedKernelPages = roundedKernelLen / 4096;
+
+    fseek(inputVmlinux, ElfHeaderSize, SEEK_SET);
+
+    {
+	for ( i=0; i<roundedKernelPages; ++i ) {
+	    get4k( inputVmlinux, inbuf );
+	    if ( i == 0 ) {
+		unsigned long * p;
+		printf("Storing embedded_sysmap_start at 0x3c\n");
+		p = (unsigned long *)(inbuf + 0x3c);
+
+#if (BYTE_ORDER == __BIG_ENDIAN)
+		*p = ramStartOffs;
+#else
+		*p = bswap_32(ramStartOffs);
+#endif
+
+		printf("Storing embedded_sysmap_end at 0x44\n");
+		p = (unsigned long *)(inbuf + 0x44);
+#if (BYTE_ORDER == __BIG_ENDIAN)
+		*p = ramStartOffs + ramFileLen;
+#else
+		*p = bswap_32(ramStartOffs + ramFileLen);
+#endif
+	    }
+	    put4k( outputVmlinux, inbuf );
+	}
+    }
+
+    {
+	for ( i=0; i<ramPages; ++i ) {
+	    get4k( ramDisk, inbuf );
+	    put4k( outputVmlinux, inbuf );
+	}
+    }
+
+
+    fclose(ramDisk);
+    fclose(inputVmlinux);
+    fclose(outputVmlinux);
+    /* Set permission to executable */
+    chmod(argv[3], S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH);
+
+    return 0;
+
+}
+