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Diffstat (limited to 'contrib/syslinux/latest/core/layout.inc')
| -rw-r--r-- | contrib/syslinux/latest/core/layout.inc | 171 |
1 files changed, 0 insertions, 171 deletions
diff --git a/contrib/syslinux/latest/core/layout.inc b/contrib/syslinux/latest/core/layout.inc deleted file mode 100644 index dab27dd..0000000 --- a/contrib/syslinux/latest/core/layout.inc +++ /dev/null @@ -1,171 +0,0 @@ -; ----------------------------------------------------------------------- -; -; Copyright 1994-2009 H. Peter Anvin - All Rights Reserved -; Copyright 2009-2010 Intel Corporation; author: H. Peter Anvin -; -; This program is free software; you can redistribute it and/or modify -; it under the terms of the GNU General Public License as published by -; the Free Software Foundation, Inc., 53 Temple Place Ste 330, -; Bostom MA 02111-1307, USA; either version 2 of the License, or -; (at your option) any later version; incorporated herein by reference. -; -; ----------------------------------------------------------------------- - -; -; layout.inc -; -; Memory layout of segments -; - - ; Default to 16-bit code - bits 16 - -; Memory below 0800h is reserved for the BIOS and the MBR. -BSS_START equ 0800h - -; Text starts at the load address of 07C00h. -TEXT_START equ 7C00h - -; -; 16-bit stack layout -; -; PXELINUX: There are apparently some AMI BIOSes in the field which -; put their BEV stack somewhere below 7C00h (and therefore don't -; handle localboot properly), so avoid that immediate memory region. -; The range that is known to be bad is approximately 75E8..7C00; the -; lower bound is tight. -; - global STACK_LEN, STACK_TOP, STACK_BASE -STACK_LEN equ 4096 -%if IS_PXELINUX -STACK_TOP equ 7000h -%else -STACK_TOP equ 7c00h -%endif -STACK_BASE equ STACK_TOP - STACK_LEN - -; The secondary BSS section, above the text; we really wish we could -; just make it follow .bcopy32 or hang off the end, -; but it doesn't seem to work that way. -LATEBSS_START equ 0B800h - -; -; 32-bit stack layout -; - global STACK32_LEN -STACK32_LEN equ 64*1024 - - section .stack nobits write align=4096 - resb STACK32_LEN - -; -; The various sections and their relationship -; - ; Use .earlybss for things that MUST be in low memory. - section .earlybss nobits write - section .config write progbits align=4 - section .replacestub exec write progbits align=16 - section .gentextnr exec write nobits align=16 - - ; Use .bss16 for things that doesn't have to be in low memory; - ; .earlybss should be used for things that absolutely have - ; to be below 0x7c00. - section .bss16 write nobits align=16 - -%if 0 ; IS_PXELINUX - ; Warning here: RBFG build 22 randomly overwrites - ; memory location [0x5680,0x576c), possibly more. It - ; seems that it gets confused and screws up the - ; pointer to its own internal packet buffer and starts - ; writing a received ARP packet into low memory. - section .rbfg write nobits -RBFG_brainfuck: resb 2048 ; Bigger than an Ethernet packet... -%endif - - section .init exec write progbits align=1 - section .text16 exec write progbits align=1 - section .textnr exec nowrite progbits align=1 - section .bcopyxx.text exec nowrite progbits align=16 - section .bcopyxx.data noexec write progbits align=16 - section .data16 noexec write progbits align=16 - - section .adv write nobits align=512 - - ; .uibss contains bss data which is guaranteed to be - ; safe to clobber during the loading of the image. This - ; is because while loading the primary image we will clobber - ; the spillover from the last fractional sector load. - section .uibss write nobits align=16 - - ; Symbols from linker script -%macro SECINFO 1 - extern __%1_start, __%1_lma, __%1_end - extern __%1_len, __%1_dwords -%endmacro - SECINFO bss16 - SECINFO uibss - SECINFO config - SECINFO replacestub - SECINFO bcopyxx - - SECINFO pm_code - SECINFO high_clear - - SECINFO bss - - extern free_high_memory - - global _start - - section .text16 - -; -; Segment assignments in the bottom 640K -; Keep the low-memory footprint as small as possible... overrun is a hard -; failure! -; - -serial_buf_size equ 4096 ; Should be a power of 2 - -; -; Contents of aux_seg -; - extern aux_seg ; Actual segment assigned by linker - - struc aux -.fontbuf resb 8192 -.serial resb serial_buf_size - - alignb 4096 ; Align the next segment to 4K - endstruc - - section .auxseg write nobits align=16 -auxseg resb aux_size - -; -; Transfer buffer segment: guaranteed to be aligned 64K, used for disk I/O -; One symbol for the segment number, one for the absolute address -; - extern xfer_buf_seg - section .xfer_buf write nobits align=65536 - global core_xfer_buf -core_xfer_buf resb 65536 - -; -; Segment for the real mode code (needed as long as we have a in-kernel -; loader and/or COM16 support. -; One symbol for the segment number, one for the absolute address -; - extern real_mode_seg - section .real_mode write nobits align=65536 - global core_real_mode -core_real_mode resb 65536 -comboot_seg equ real_mode_seg ; COMBOOT image loading zone - -; -; At the very end, the lowmem heap -; - extern __lowmem_heap -min_lowmem_heap equ 65536 - - section .text16 |