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m68k: fixup_next_boot_floppy: use Haiku names, write copies

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Change-Id: I99b007d8c67f278f5bb7a784ea0e56fdd15209c0
Reviewed-on: https://review.haiku-os.org/c/haiku/+/3099
Reviewed-by: Alex von Gluck IV <[email protected]>
This commit is contained in:
François Revol
2020-08-19 13:38:25 +00:00
committed by Alex von Gluck IV
parent ea3142ecba
commit 50addaaab6
1 changed files with 30 additions and 11 deletions
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src/tools/fixup_next_boot_floppy/fixup_next_boot_floppy.c
+30 -11
View File
@@ -39,15 +39,17 @@ static uint16_t checksum_16(uint16_t *p, int count)
int main(int argc, char **argv)
{
int fd;
unsigned int i;
uint16_t sum;
int labelOffsets[] = { 0, 15, 30, 45 };
int numLabels = sizeof(labelOffsets) / sizeof(int);
struct disk_label disklabel = {
H2B32(DL_V3),
H2B32(0),
H2B32(0),
"NextBoot",//"HaikuBoot",
"HaikuBoot",//"NextBoot",
H2B32(0),
H2B32(0xa991637a), //H2B32(0x4841494b), // dl_tag: 'HAIK'
H2B32(0x4841494b),//H2B32(0xa991637a), // dl_tag: 'HAIK'
"Sony MPX-111N 2880-512", // same as NS image, not sure it matters
"removable_rw_floppy",
H2B32(1024), // !! 1024 bytes / sector !!
@@ -61,14 +63,17 @@ int main(int argc, char **argv)
H2B16(0),
H2B16(0),
H2B16(0),
H2B32(0x20),H2B32(0xffffffff), // boot block locations XXX: move it closer to start?
"fdmach", //"haiku_loader",
"silly", //"schredder",
H2B32(0x20),H2B32(0xffffffff), // boot blocks in 1024 bytes sectors
// XXX: move it closer to start?
"haiku_loader",//"fdmach"
"schredder",//"silly"
'a', 'b',
// partitions
{
// Nextstep uses this:
{ H2B32(0), H2B32(0x540), H2B16(0x2000), H2B16(0x400), 't', H2B16(0x20), H2B16(0x800), 0, 1, "", 1, "4.3BSD"},
//{ H2B32(0), H2B32(0x540), H2B16(0x2000), H2B16(0x400), 't', H2B16(0x20), H2B16(0x800), 0, 1, "", 1, "4.3BSD"},
// XXX: should we fake an fs anyway?
{ H2B32(-1), H2B32(-1), H2B16(-1), H2B16(-1), 0, H2B16(-1), H2B16(-1), -1, 0, "", 0, ""},
{ H2B32(-1), H2B32(-1), H2B16(-1), H2B16(-1), 0, H2B16(-1), H2B16(-1), -1, 0, "", 0, ""},
{ H2B32(-1), H2B32(-1), H2B16(-1), H2B16(-1), 0, H2B16(-1), H2B16(-1), -1, 0, "", 0, ""},
{ H2B32(-1), H2B32(-1), H2B16(-1), H2B16(-1), 0, H2B16(-1), H2B16(-1), -1, 0, "", 0, ""},
@@ -76,23 +81,37 @@ int main(int argc, char **argv)
{ H2B32(-1), H2B32(-1), H2B16(-1), H2B16(-1), 0, H2B16(-1), H2B16(-1), -1, 0, "", 0, ""},
{ H2B32(-1), H2B32(-1), H2B16(-1), H2B16(-1), 0, H2B16(-1), H2B16(-1), -1, 0, "", 0, ""},
{ H2B32(-1), H2B32(-1), H2B16(-1), H2B16(-1), 0, H2B16(-1), H2B16(-1), -1, 0, "", 0, ""}
}
},
{ 0 },
0
};
fd = open(argv[1], O_RDWR);
if (fd < 0) {
return 1;
}
//XXX: implement support simple checksum of existing label?
//XXX: support simple checksum of existing label?
/*
if (read(fd, bootblock, DL_SIZE) < DL_SIZE) {
perror("read");
return 1;
}
*/
// TODO: update boot block offsets!
sum = checksum_16((uint16_t *)&disklabel, SUM_CNT);
fprintf(stderr, "checksum: 0x%04x\n", sum);
disklabel.dl_un.DL_v3_checksum = H2B16(sum);
lseek(fd, 0LL, SEEK_SET);
write(fd, &disklabel, DL_SIZE);
for (unsigned int i = 0; i < numLabels; i++) {
/* also write copies elsewhere, note we don't update the checksum */
disklabel.dl_label_blkno = H2B32(labelOffsets[i]);
/* oddly this field seems to use 512 bytes sectors */
lseek(fd, labelOffsets[i] * 0x200LL, SEEK_SET);
write(fd, &disklabel, DL_SIZE);
}
// TODO: patch the bootblock text segment to include the tgz
return 0;
}