Macintosh-SW/newworld-rom
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Support older Trampolines

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Trampolines 7.x and earlier expect an `AAPL,toolbox-image,lzss`
property, rather than `AAPL,toolbox-parcels`. This change to bootmake.py
checks the Trampoline binary and assembles the boot script to suit it.

When you use an older Trampoline, the resultant booter will *not* be a
binary match for any Apple release. However, it should work. Also, BYO
Trampoline. Older binaries have not been included!
This commit is contained in:
Elliot Nunn 2018-03-17 13:07:45 +08:00
parent d2aefec405
commit a65721a0e3
1 changed files with 25 additions and 11 deletions
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36
scripts/bootmake.py
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@ -71,18 +71,19 @@ DATA_OFFSET = 0x5000
# Load the two binary blobs, and save their offsets and sizes.
out_path, elf_path, parcels_path = argv[1:]
out_path, elf_path, payload_path = argv[1:]
tbxi = bytearray(DATA_OFFSET)
for x in ['elf', 'parcels']:
for x in ['elf', 'payload']:
locals()[x + '_offset'] = len(tbxi)
with open(locals()[x + '_path'], 'rb') as f:
data = f.read()
while len(data) % 4:
data.extend(b'\x00')
locals()[x + '_size'] = len(data)
locals()[x + '_data'] = data
tbxi.extend(data)
@ -90,6 +91,19 @@ info_size = len(tbxi)
# Put the payload in the correct device tree property.
if b'AAPL,toolbox-parcels' in elf_data:
# Used by v8-10 booters
payload_type = 'parcels'
payload_prop_name = 'AAPL,toolbox-parcels'
else:
# Used by v1 LZSSed-ROM-image booters, and by v3-7 parcels-based booters
payload_type = 'lzss'
payload_prop_name = 'AAPL,toolbox-image,lzss'
# Assemble the CHRP-BOOT text for Open Firmware to parse.
BOOT_SCRIPT = ''
@ -219,9 +233,9 @@ pagesz 1- constant pagesz-1
h# {elf_offset:06X} constant elf-offset
h# {elf_size:06X} constant elf-size
elf-size pagesz-1 + pagemask and constant elf-pages
h# {parcels_offset:06X} constant parcels-offset
h# {parcels_size:06X} constant parcels-size
parcels-size pagesz-1 + pagemask and constant parcels-pages
h# {payload_offset:06X} constant {payload_type}-offset
h# {payload_size:06X} constant {payload_type}-size
{payload_type}-size pagesz-1 + pagemask and constant {payload_type}-pages
h# {info_size:06X} constant info-size
info-size pagesz-1 + pagemask and constant info-pages
0 value load-base-claim
@ -233,25 +247,25 @@ info-size pagesz-1 + pagemask and constant info-pages
info-pages 1000 claim-virt to info-base
load-base info-base info-pages 10 do-map then
\ allocate room for both images
parcels-pages 400000 claim-mem constant rom-phys parcels-pages 1000 claim-virt constant rom-virt rom-phys rom-virt parcels-pages 10 do-map
{payload_type}-pages 400000 claim-mem constant rom-phys {payload_type}-pages 1000 claim-virt constant rom-virt rom-phys rom-virt {payload_type}-pages 10 do-map
elf-pages 1000 claim-mem constant elf-phys elf-pages 1000 claim-virt constant elf-virt
elf-phys elf-virt elf-pages 10 do-map info-base elf-offset + elf-virt elf-size move debug? if cr ." elf-phys,elf-virt,elf-pages: " elf-phys u. ." , " elf-virt u. ." , " elf-pages u. then
\ copy the compressed image
debug? if cr ." copying compressed ROM image" then
rom-virt parcels-pages 0 fill
info-base parcels-offset + rom-virt parcels-size move
rom-virt {payload_type}-pages 0 fill
info-base {payload_type}-offset + rom-virt {payload_type}-size move
'release-load-area 0= if
info-base info-pages do-unmap load-base-claim ?dup if info-pages release-mem then
then
debug? if cr ." MacOS-ROM phys,virt,size: " rom-phys u. ." , " rom-virt u. ." , " parcels-size u. then
debug? if cr ." MacOS-ROM phys,virt,size: " rom-phys u. ." , " rom-virt u. ." , " {payload_type}-size u. then
\ create the actual property
debug? if cr ." finding/creating '/rom/macos' package" then
device-end 0 to my-self
" /rom" find-device
" macos" ['] find-device catch if 2drop new-device " macos" device-name finish-device then
" /rom/macos" find-device
debug? if cr ." creating 'AAPL,toolbox-parcels' property" then
rom-virt encode-int parcels-size encode-int encode+ " AAPL,toolbox-parcels" property
debug? if cr ." creating '{payload_prop_name}' property" then
rom-virt encode-int {payload_type}-size encode-int encode+ " {payload_prop_name}" property
device-end
debug? if cr ." copying MacOS.elf to load-base" then
'release-load-area if