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* grub-core/Makefile.core.def (xnu): Add file lzss.c * grub-core/loader/lzss.c: New file. * grub-core/loader/xnu.c (grub_xnu_load_driver): Close binaryfile on Mach-O open failure. * grub-core/loader/macho.c (grub_macho_close): Free uncompressedXX. Don't free cmdsXX in uncompressedXX is set. (grub_macho_file): Init new fields. New argument is_64bit. All users updated. Handle compressed. Error out if no suitable architecture is found. Don't close file. (grub_macho_open): New argument is_64bit. All users updated. * grub-core/loader/macho32.c: Add defines for new fields. * grub-core/loader/macho64.c: Likewise. * grub-core/loader/machoXX.c (grub_macho_contains_macho): Make static. (grub_macho_parse): Handle compressed. Defer actual processing if compressed. (grub_macho_cmds_iterate): Decompress if compressed. New argument "filename". All users updated. (grub_macho_size): New argument "filename". All users updated. (grub_macho_get_entry_point): Likewise. (grub_macho_load): Handle compressed. * include/grub/macho.h (grub_macho_lzss_header): New struct. (GRUB_MACHO_LZSS_OFFSET): New define. (grub_decompress_lzss): New proto. * include/grub/machoload.h (grub_macho_file): New fields to handle compressed. (grub_macho_contains_macho64): Remove proto. (grub_macho_contains_macho32): Likewise. * util/grub.d/30_os-prober.in: Use kernel cache if available.
All executable files in this directory are processed in shell expansion order. 00_*: Reserved for 00_header. 10_*: Native boot entries. 20_*: Third party apps (e.g. memtest86+). The number namespace in-between is configurable by system installer and/or administrator. For example, you can add an entry to boot another OS as 01_otheros, 11_otheros, etc, depending on the position you want it to occupy in the menu; and then adjust the default setting via /etc/default/grub.