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initial work on booting from boot image

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This commit is contained in:
Joel Dice
2008-11-28 15:02:45 -07:00
parent d22a9ab270
commit 4d1af63ed2
6 changed files with 303 additions and 117 deletions
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29
src/bootimage.cpp
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@ -31,12 +31,6 @@ endsWith(const char* suffix, const char* s, unsigned length)
and memcmp(suffix, s + (length - suffixLength), suffixLength) == 0;
}
unsigned
codeMapSize(unsigned codeSize)
{
return ceiling(codeSize, BitsPerWord) * BytesPerWord;
}
object
makeCodeImage(Thread* t, Zone* zone, BootImage* image, uint8_t* code,
unsigned capacity)
@ -82,12 +76,6 @@ makeCodeImage(Thread* t, Zone* zone, BootImage* image, uint8_t* code,
return constants;
}
unsigned
heapMapSize(unsigned heapSize)
{
return ceiling(heapSize, BitsPerWord * 8) * BytesPerWord;
}
unsigned
objectSize(Thread* t, object o)
{
@ -238,15 +226,18 @@ writeBootImage(Thread* t, FILE* out)
image.magic = BootImage::Magic;
// fprintf(stderr, "heap size %d code size %d\n",
// image.heapSize, image.codeSize);
fwrite(&image, sizeof(BootImage), 1, out);
if (true) {
fprintf(stderr, "heap size %d code size %d\n",
image.heapSize, image.codeSize);
} else {
fwrite(&image, sizeof(BootImage), 1, out);
fwrite(heapMap, pad(heapMapSize(image.heapSize)), 1, out);
fwrite(heap, pad(image.heapSize), 1, out);
fwrite(heapMap, pad(heapMapSize(image.heapSize)), 1, out);
fwrite(heap, pad(image.heapSize), 1, out);
fwrite(codeMap, pad(codeMapSize(image.codeSize)), 1, out);
fwrite(code, pad(image.codeSize), 1, out);
fwrite(codeMap, pad(codeMapSize(image.codeSize)), 1, out);
fwrite(code, pad(image.codeSize), 1, out);
}
}
} // namespace