diff options
Diffstat (limited to 'src/arch/i386/core/etherboot.prefix.lds')
| -rw-r--r-- | src/arch/i386/core/etherboot.prefix.lds | 100 |
1 files changed, 0 insertions, 100 deletions
diff --git a/src/arch/i386/core/etherboot.prefix.lds b/src/arch/i386/core/etherboot.prefix.lds deleted file mode 100644 index 3550a2a3..00000000 --- a/src/arch/i386/core/etherboot.prefix.lds +++ /dev/null @@ -1,100 +0,0 @@ -OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386") -OUTPUT_ARCH(i386) - -ENTRY(_prefix_start) -SECTIONS { - /* Prefix */ - .prefix : { - _verbatim_start = . ; - _prefix_start = . ; - *(.prefix) - . = ALIGN(16); - _prefix_end = . ; - } = 0x9090 - _prefix_size = _prefix_end - _prefix_start; - - .text.nocompress : { - *(.prefix.udata) - } = 0x9090 - - decompress_to = . ; - .prefix.zdata : { - _compressed = . ; - *(.prefix.zdata) - _compressed_end = . ; - } - _compressed_size = _compressed_end - _compressed; - - . = ALIGN(16); - _verbatim_end = . ; - - - /* Size of the core of etherboot in memory */ - _base_size = _end - _text; - - /* _prefix_size is the length of the non-core etherboot prefix */ - _prefix_size = _prefix_end - _prefix_start; - - /* _verbatim_size is the actual amount that has to be copied to base memory */ - _verbatim_size = _verbatim_end - _verbatim_start; - - /* _image_size is the amount of base memory needed to run */ - _image_size = _base_size + _prefix_size; - - /* Standard sizes rounded up to paragraphs */ - _prefix_size_pgh = (_prefix_size + 15) / 16; - _verbatim_size_pgh = (_verbatim_size + 15) / 16; - _image_size_pgh = (_image_size + 15) / 16 ; - - /* Standard sizes in sectors */ - _prefix_size_sct = (_prefix_size + 511) / 512; - _verbatim_size_sct = (_verbatim_size + 511) / 512; - _image_size_sct = (_image_size + 511) / 512; - - /* Symbol offsets and sizes for the exe prefix */ - _exe_hdr_size = 32; - _exe_size = _verbatim_size; /* Should this be - 32 to exclude the header? */ - _exe_size_tail = (_exe_size) % 512; - _exe_size_pages = ((_exe_size) + 511) / 512; - _exe_bss_size = ((_image_size - _verbatim_size) + 15) / 16; - _exe_ss_offset = (_stack_offset + _prefix_size - _exe_hdr_size + 15) / 16 ; - - /* This is where we copy the compressed image before decompression. - * Prepare to decompress in place. The end mark is about 8.25 bytes long, - * and the worst case symbol is about 16.5 bytes long. Therefore - * We need to reserve at least 25 bytes of slack here. - * Currently I reserve 2048 bytes of just slack to be safe :) - * 2048 bytes easily falls within the BSS (the defualt stack is 4096 bytes) - * so we really are decompressing in place. - * - * Hmm. I missed a trick. In the very worst case (no compression) - * the encoded data is 9/8 the size as it started out so to be completely - * safe I need to be 1/8 of the uncompressed code size past the end. - * This will still fit compfortably into our bss in any conceivable scenario. - */ - _compressed_copy = _edata + _prefix_size - _compressed_size + - /* The amount to overflow _edata */ - MAX( ((_edata - _text + 7) / 8) , 2016 ) + 32; - _assert = ASSERT( ( _compressed_copy - _prefix_size ) < _ebss , "Cannot decompress in place" ) ; - - decompress = DEFINED(decompress) ? decompress : 0; - /DISCARD/ : { - *(.comment) - *(.note) - } - - /* Symbols used by the prefixes whose addresses are inconvinient - * to compute, at runtime in the code. - */ - image_basemem_size = DEFINED(image_basemem_size)? image_basemem_size : 65536; - image_basemem = DEFINED(image_basemem)? image_basemem : 65536; - _prefix_real_to_prot = _real_to_prot + _prefix_size ; - _prefix_prot_to_real = _prot_to_real + _prefix_size ; - _prefix_image_basemem_size = image_basemem_size + _prefix_size ; - _prefix_image_basemem = image_basemem + _prefix_size ; - _prefix_rm_in_call = _rm_in_call + _prefix_size ; - _prefix_in_call = _in_call + _prefix_size ; - _prefix_rom = rom + _prefix_size ; - _prefix_rm_etherboot_location = rm_etherboot_location + _prefix_size ; - _prefix_stack_end = _stack_end + _prefix_size ; -} |