diff options
| -rw-r--r-- | conio.inc | 3 | ||||
| -rw-r--r-- | extlinux.asm | 23 | ||||
| -rw-r--r-- | font.inc | 6 | ||||
| -rw-r--r-- | init.inc | 67 | ||||
| -rw-r--r-- | isolinux.asm | 44 | ||||
| -rw-r--r-- | ldlinux.asm | 48 | ||||
| -rw-r--r-- | parseconfig.inc | 61 | ||||
| -rw-r--r-- | pxelinux.asm | 92 | ||||
| -rw-r--r-- | runkernel.inc | 4 | ||||
| -rw-r--r-- | ui.inc | 112 |
10 files changed, 195 insertions, 265 deletions
@@ -373,6 +373,9 @@ debug_tracer: pushad ret %endif ; DEBUG_TRACERS + section .data +ScrollAttribute db 07h ; Grey on white (normal text color) + section .bss alignb 2 NextCharJump resw 1 ; Routine to interpret next print char diff --git a/extlinux.asm b/extlinux.asm index fd841c81..757609a2 100644 --- a/extlinux.asm +++ b/extlinux.asm @@ -1268,20 +1268,6 @@ exten_table_end: %ifdef debug ; This code for debugging only debug_magic dw 0D00Dh ; Debug code sentinel %endif -AppendLen dw 0 ; Bytes in append= command -OntimeoutLen dw 0 ; Bytes in ontimeout command -OnerrorLen dw 0 ; Bytes in onerror command -KbdTimeOut dw 0 ; Keyboard timeout (if any) -CmdLinePtr dw cmd_line_here ; Command line advancing pointer -initrd_flag equ $ -initrd_ptr dw 0 ; Initial ramdisk pointer/flag -VKernelCtr dw 0 ; Number of registered vkernels -ForcePrompt dw 0 ; Force prompt -AllowImplicit dw 1 ; Allow implicit kernels -AllowOptions dw 1 ; User-specified options allowed -SerialPort dw 0 ; Serial port base (or 0 for no serial port) -VGAFontSize dw 16 ; Defaults to 16 byte font -UserFont db 0 ; Using a user-specified font ScrollAttribute db 07h ; White on black (for text mode) alignb 4, db 0 @@ -1294,14 +1280,5 @@ EndOfGetCBuf dw getcbuf+trackbufsize ; = getcbuf+BufSafeBytes %error trackbufsize must be a multiple of SECTOR_SIZE %endif %endif -; -; Stuff for the command line; we do some trickery here with equ to avoid -; tons of zeros appended to our file and wasting space -; -linuxauto_cmd db 'linux auto',0 -linuxauto_len equ $-linuxauto_cmd -boot_image db 'BOOT_IMAGE=' -boot_image_len equ $-boot_image - align 4, db 0 ; Pad out any unfinished dword ldlinux_end equ $ @@ -123,5 +123,9 @@ vidrows_ok: mov [VidRows],al section vgafont nobits start=0E000h vgafontbuf resb 8192 - section .text + section .data + align 2, db 0 +VGAFontSize dw 16 ; Defaults to 16 byte font +UserFont db 0 ; Using a user-specified font + diff --git a/init.inc b/init.inc new file mode 100644 index 00000000..d2289d7e --- /dev/null +++ b/init.inc @@ -0,0 +1,67 @@ +; -*- fundamental -*- +; ----------------------------------------------------------------------- +; +; Copyright 2004 H. Peter Anvin - All Rights Reserved +; +; 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, +; Boston MA 02111-1307, USA; either version 2 of the License, or +; (at your option) any later version; incorporated herein by reference. +; +; ----------------------------------------------------------------------- +; $Id$ + +; +; init.inc +; +; Common initialization code (inline) +; + + section .text +common_init: + ; Now set up screen parameters + call adjust_screen + + ; Wipe the F-key area + mov al,NULLFILE + mov di,FKeyName + mov cx,10*(1 << FILENAME_MAX_LG2) + rep stosb + + mov si,linuxauto_cmd ; Default command: "linux auto" + mov di,default_cmd + mov cx,linuxauto_len + rep movsb + + mov di,KbdMap ; Default keymap 1:1 + xor al,al + inc ch ; CX <- 256 +mkkeymap: stosb + inc al + loop mkkeymap + +; +; Clear Files structures +; + mov di,Files + mov cx,(MAX_OPEN*open_file_t_size)/4 + xor eax,eax + rep stosd + +%if IS_PXELINUX + mov di,Files+tftp_pktbuf + mov cx,MAX_OPEN +.setbufptr: + mov [di],ax + add di,open_file_t_size + add ax,PKTBUF_SIZE + loop .setbufptr +%endif + + section .data +linuxauto_cmd db 'linux auto',0 +linuxauto_len equ $-linuxauto_cmd + + section .text ; This is an inline file... + diff --git a/isolinux.asm b/isolinux.asm index c545b013..faab78cd 100644 --- a/isolinux.asm +++ b/isolinux.asm @@ -835,17 +835,10 @@ all_read: ; ; Common initialization code ; +%include "init.inc" %include "cpuinit.inc" ; -; Clear Files structures -; - mov di,Files - mov cx,(MAX_OPEN*open_file_t_size)/4 - xor eax,eax - rep stosd - -; ; Now we're all set to start with our *real* business. First load the ; configuration file (if any) and parse it. ; @@ -858,17 +851,6 @@ all_read: ; to take'm out. In fact, we may want to put them back if we're going ; to boot ELKS at some point. ; - mov si,linuxauto_cmd ; Default command: "linux auto" - mov di,default_cmd - mov cx,linuxauto_len - rep movsb - - mov di,KbdMap ; Default keymap 1:1 - xor al,al - mov cx,256 -mkkeymap: stosb - inc al - loop mkkeymap ; ; Now, we need to sniff out the actual filesystem data structures. @@ -1627,22 +1609,6 @@ img_table: ; ; Misc initialized (data) variables ; - align 4, db 0 -AppendLen dw 0 ; Bytes in append= command -OntimeoutLen dw 0 ; Bytes in ontimeout command -OnerrorLen dw 0 ; Bytes in onerror command -KbdTimeOut dw 0 ; Keyboard timeout (if any) -CmdLinePtr dw cmd_line_here ; Command line advancing pointer -initrd_flag equ $ -initrd_ptr dw 0 ; Initial ramdisk pointer/flag -VKernelCtr dw 0 ; Number of registered vkernels -ForcePrompt dw 0 ; Force prompt -AllowImplicit dw 1 ; Allow implicit kernels -AllowOptions dw 1 ; User-specified options allowed -SerialPort dw 0 ; Serial port base (or 0 for no serial port) -VGAFontSize dw 16 ; Defaults to 16 byte font -UserFont db 0 ; Using a user-specified font -ScrollAttribute db 07h ; White on black (for text mode) ; ; Spec packet for disk image emulation @@ -1677,12 +1643,4 @@ EndOfGetCBuf dw getcbuf+trackbufsize ; = getcbuf+BufSafeBytes %endif %endif -; -; Stuff for the command line; we do some trickery here with equ to avoid -; tons of zeros appended to our file and wasting space -; -linuxauto_cmd db 'linux auto',0 -linuxauto_len equ $-linuxauto_cmd -boot_image db 'BOOT_IMAGE=' -boot_image_len equ $-boot_image ldlinux_end equ $ diff --git a/ldlinux.asm b/ldlinux.asm index b9760680..b8f23031 100644 --- a/ldlinux.asm +++ b/ldlinux.asm @@ -850,6 +850,7 @@ getfattype: ; Common initialization code ; %include "cpuinit.inc" +%include "init.inc" ; ; Clear Files structures @@ -865,19 +866,6 @@ getfattype: call initcache ; -; Initialization that does not need to go into the any of the pre-load -; areas -; - ; Now set up screen parameters - call adjust_screen - - ; Wipe the F-key area - mov al,NULLFILE - mov di,FKeyName - mov cx,10*(1 << FILENAME_MAX_LG2) - rep stosb - -; ; Now, everything is "up and running"... patch kaboom for more ; verbosity and using the full screen system ; @@ -897,17 +885,6 @@ getfattype: ; to take'm out. In fact, we may want to put them back if we're going ; to boot ELKS at some point. ; - mov si,linuxauto_cmd ; Default command: "linux auto" - mov di,default_cmd - mov cx,linuxauto_len - rep movsb - - mov di,KbdMap ; Default keymap 1:1 - xor al,al - inc ch ; CX <- 256 -mkkeymap: stosb - inc al - loop mkkeymap ; ; Load configuration file @@ -1558,21 +1535,6 @@ exten_table_end: %ifdef debug ; This code for debugging only debug_magic dw 0D00Dh ; Debug code sentinel %endif -AppendLen dw 0 ; Bytes in append= command -OntimeoutLen dw 0 ; Bytes in ontimeout command -OnerrorLen dw 0 ; Bytes in onerror command -KbdTimeOut dw 0 ; Keyboard timeout (if any) -CmdLinePtr dw cmd_line_here ; Command line advancing pointer -initrd_flag equ $ -initrd_ptr dw 0 ; Initial ramdisk pointer/flag -VKernelCtr dw 0 ; Number of registered vkernels -ForcePrompt dw 0 ; Force prompt -AllowImplicit dw 1 ; Allow implicit kernels -AllowOptions dw 1 ; User-specified options allowed -SerialPort dw 0 ; Serial port base (or 0 for no serial port) -VGAFontSize dw 16 ; Defaults to 16 byte font -UserFont db 0 ; Using a user-specified font -ScrollAttribute db 07h ; White on black (for text mode) alignb 4, db 0 BufSafe dw trackbufsize/SECTOR_SIZE ; Clusters we can load into trackbuf @@ -1584,14 +1546,6 @@ EndOfGetCBuf dw getcbuf+trackbufsize ; = getcbuf+BufSafeBytes %error trackbufsize must be a multiple of SECTOR_SIZE %endif %endif -; -; Stuff for the command line; we do some trickery here with equ to avoid -; tons of zeros appended to our file and wasting space -; -linuxauto_cmd db 'linux auto',0 -linuxauto_len equ $-linuxauto_cmd -boot_image db 'BOOT_IMAGE=' -boot_image_len equ $-boot_image align 4, db 0 ; Pad out any unfinished dword ldlinux_end equ $ diff --git a/parseconfig.inc b/parseconfig.inc index f738dafc..0a427696 100644 --- a/parseconfig.inc +++ b/parseconfig.inc @@ -47,7 +47,7 @@ pc_onerror: mov di,Onerror ; ; "append" command ; -pc_append: cmp word [VKernelCtr],byte 0 +pc_append: cmp byte [VKernel],0 ja .vk mov di,AppendBuf call getline @@ -71,7 +71,7 @@ pc_append: cmp word [VKernelCtr],byte 0 %if IS_PXELINUX pc_ipappend: call getint jc .err - cmp word [VKernelCtr], byte 0 + cmp byte [VKernel],0 jne .vk mov [IPAppend],bl .err: ret @@ -84,7 +84,7 @@ pc_ipappend: call getint ; %if IS_PXELINUX || IS_ISOLINUX pc_localboot: call getint - cmp word [VKernelCtr],byte 0 ; ("label" section only) + cmp byte [VKernel],0 ; ("label" section only) je .err mov di,VKernelBuf+vk_rname xor ax,ax @@ -96,7 +96,7 @@ pc_localboot: call getint ; ; "kernel" command -pc_kernel: cmp word [VKernelCtr],byte 0 +pc_kernel: cmp byte [VKernel],0 je .err ; ("label" section only) call pc_getline mov di,VKernelBuf+vk_rname @@ -246,7 +246,7 @@ pc_label: call commit_vk ; Commit any current vkernel call pc_getline mov di,VKernelBuf+vk_vname call mangle_name ; Mangle virtual name - inc word [VKernelCtr] ; One more vkernel + mov byte [VKernel],1 ; We've seen a "label" statement mov si,VKernelBuf+vk_vname ; By default, rname == vname mov di,VKernelBuf+vk_rname mov cx,FILENAME_MAX @@ -308,22 +308,51 @@ commit_vk: xor ax,ax rep stosb - cmp word [VKernelCtr],byte 0 - je cvk_ret ; No VKernel = return - cmp word [VKernelCtr],max_vk ; Above limit? - ja cvk_overflow - mov di,[VKernelCtr] - dec di - shl di,vk_shift + ; Pack temporarily into trackbuf mov si,VKernelBuf - mov cx,(vk_size >> 2) + mov di,trackbuf + mov cx,vk_size + call rllpack + ; Now DX = number of bytes + mov di,[VKernelBytes] + mov cx,dx + add dx,di + jc .overflow ; If > 1 segment + mov [VKernelBytes],dx + mov si,trackbuf push es push word vk_seg pop es - rep movsd ; Copy to buffer segment + rep movsb pop es -cvk_ret: ret -cvk_overflow: mov word [VKernelCtr],max_vk ; No more than max_vk, please ret +.overflow: + mov si,vk_overflow_msg + call writestr + ret + + section .data +vk_overflow_msg db 'Out of memory parsing config file', CR, LF, 0 + + align 2, db 0 +AppendLen dw 0 ; Bytes in append= command +OntimeoutLen dw 0 ; Bytes in ontimeout command +OnerrorLen dw 0 ; Bytes in onerror command +KbdTimeOut dw 0 ; Keyboard timeout (if any) +CmdLinePtr dw cmd_line_here ; Command line advancing pointer +initrd_flag equ $ +initrd_ptr dw 0 ; Initial ramdisk pointer/flag +ForcePrompt dw 0 ; Force prompt +AllowImplicit dw 1 ; Allow implicit kernels +AllowOptions dw 1 ; User-specified options allowed +SerialPort dw 0 ; Serial port base (or 0 for no serial port) +VKernelBytes dw 0 ; Number of bytes used by vkernels +VKernel db 0 ; Have we seen any "label" statements? + + section .bss + alignb 4 ; For the good of REP MOVSD +command_line resb max_cmd_len+2 ; Command line buffer + alignb 4 +default_cmd resb max_cmd_len+1 ; "default" command line %include "rllpack.inc" diff --git a/pxelinux.asm b/pxelinux.asm index 4b1c6b1b..be550a19 100644 --- a/pxelinux.asm +++ b/pxelinux.asm @@ -35,9 +35,9 @@ FILENAME_MAX equ (1 << FILENAME_MAX_LG2) NULLFILE equ 0 ; Zero byte == null file name REBOOT_TIME equ 5*60 ; If failure, time until full reset %assign HIGHMEM_SLOP 128*1024 ; Avoid this much memory near the top -MAX_SOCKETS_LG2 equ 5 ; log2(Max number of open sockets) -MAX_SOCKETS equ (1 << MAX_SOCKETS_LG2) -PKTBUF_SIZE equ (65536/MAX_SOCKETS) ; Per-socket packet buffer size +MAX_OPEN_LG2 equ 5 ; log2(Max number of open sockets) +MAX_OPEN equ (1 << MAX_OPEN_LG2) +PKTBUF_SIZE equ (65536/MAX_OPEN) ; Per-socket packet buffer size TFTP_PORT equ htons(69) ; Default TFTP port PKT_RETRY equ 6 ; Packet transmit retry count PKT_TIMEOUT equ 12 ; Initial timeout, timer ticks @ 55 ms @@ -160,7 +160,7 @@ BOOTP_OPTION_MAGIC equ htonl(0x63825363) ; See RFC 2132 ; HBO = host byte order; NBO = network byte order ; (*) = written by options negotiation code, must be dword sized ; - struc tftp_port_t + struc open_file_t tftp_localport resw 1 ; Local port number (0 = not in use) tftp_remoteport resw 1 ; Remote port number tftp_remoteip resd 1 ; Remote IP address @@ -174,12 +174,9 @@ tftp_dataptr resw 1 ; Pointer to available data ; At end since it should not be zeroed on socked close tftp_pktbuf resw 1 ; Packet buffer offset endstruc - -tftp_clear_words equ (tftp_pktbuf/2) ; Number of words to zero on socket close - %ifndef DEPEND -%if (tftp_port_t_size & (tftp_port_t_size-1)) -%error "tftp_port_t is not a power of 2" +%if (open_file_t_size & (open_file_t_size-1)) +%error "open_file_t is not a power of 2" %endif %endif @@ -236,8 +233,8 @@ pxe_unload_stack_pkt: .reserved: resw 10 ; Reserved pxe_unload_stack_pkt_len equ $-pxe_unload_stack_pkt - alignb tftp_port_t_size -Sockets resb MAX_SOCKETS*tftp_port_t_size + alignb open_file_t_size +Files resb MAX_OPEN*open_file_t_size alignb 16 ; BOOTP/DHCP packet buffer @@ -508,26 +505,6 @@ have_pxe: have_entrypoint: ; -; Clear Sockets structures -; -clear_sockets: - mov ax,ds ; Set ES <- DS - mov es,ax - - mov di,Sockets - mov cx,(MAX_SOCKETS*tftp_port_t_size)/4 - xor eax,eax - push di - rep stosd - pop di ; di <- Sockets - mov cx,MAX_SOCKETS -.setbufptr: - mov [di+tftp_pktbuf],ax - add di,tftp_port_t_size - add ax,PKTBUF_SIZE - loop .setbufptr - -; ; Now attempt to get the BOOTP/DHCP packet that brought us life (and an IP ; address). This lives in the DHCPACK packet (query info 2). ; @@ -685,6 +662,7 @@ udp_init: ; ; Common initialization code ; +%include "init.inc" %include "cpuinit.inc" ; @@ -700,18 +678,6 @@ udp_init: ; to take'm out. In fact, we may want to put them back if we're going ; to boot ELKS at some point. ; - mov si,linuxauto_cmd ; Default command: "linux auto" - mov di,default_cmd - mov cx,linuxauto_len - rep movsb - - mov di,KbdMap ; Default keymap 1:1 - xor al,al - mov cx,256 -mkkeymap: stosb - inc al - loop mkkeymap - ; ; Store standard filename prefix @@ -1375,11 +1341,11 @@ searchdir: ; allocate_socket: push cx - mov bx,Sockets - mov cx,MAX_SOCKETS + mov bx,Files + mov cx,MAX_OPEN .check: cmp word [bx], byte 0 je .found - add bx,tftp_port_t_size + add bx,open_file_t_size loop .check xor cx,cx ; ZF = 1 pop cx @@ -1398,9 +1364,9 @@ allocate_socket: push ax mov ax,[NextSocket] inc ax - and ax,((1 << (13-MAX_SOCKETS_LG2))-1) | 0xC000 + and ax,((1 << (13-MAX_OPEN_LG2))-1) | 0xC000 mov [NextSocket],ax - shl cx,13-MAX_SOCKETS_LG2 + shl cx,13-MAX_OPEN_LG2 add cx,ax ; ZF = 0 xchg ch,cl ; Convert to network byte order mov [bx],cx ; Socket in use @@ -1417,7 +1383,7 @@ free_socket: xor ax,ax mov es,ax mov di,si - mov cx,tftp_clear_words + mov cx,tftp_pktbuf >> 1 ; tftp_pktbuf is not cleared rep stosw popa pop es @@ -2402,26 +2368,6 @@ pxe_udp_read_pkt: ; alignb 4, db 0 BaseStack dd StackBuf ; SS:ESP of base stack - dw 0 -AppendLen dw 0 ; Bytes in append= command -OntimeoutLen dw 0 ; Bytes in ontimeout command -OnerrorLen dw 0 ; Bytes in onerror command -KbdTimeOut dw 0 ; Keyboard timeout (if any) -CmdLinePtr dw cmd_line_here ; Command line advancing pointer -initrd_flag equ $ -initrd_ptr dw 0 ; Initial ramdisk pointer/flag -VKernelCtr dw 0 ; Number of registered vkernels -ForcePrompt dw 0 ; Force prompt -AllowImplicit dw 1 ; Allow implicit kernels -AllowOptions dw 1 ; User-specified options allowed -SerialPort dw 0 ; Serial port base (or 0 for no serial port) -VGAFontSize dw 16 ; Defaults to 16 byte font -UserFont db 0 ; Using a user-specified font -ScrollAttribute db 07h ; White on black (for text mode) - -; -; PXELINUX-specific variables -; NextSocket dw 49152 ; Counter for allocating socket numbers KeepPXE db 0 ; Should PXE be kept around? @@ -2484,12 +2430,4 @@ EndOfGetCBuf dw getcbuf+trackbufsize ; = getcbuf+BufSafeBytes IPAppend db 0 ; Default IPAPPEND option DHCPMagic db 0 ; DHCP site-specific option info -; -; Stuff for the command line; we do some trickery here with equ to avoid -; tons of zeros appended to our file and wasting space -; -linuxauto_cmd db 'linux auto',0 -linuxauto_len equ $-linuxauto_cmd -boot_image db 'BOOT_IMAGE=' -boot_image_len equ $-boot_image ldlinux_end equ $ diff --git a/runkernel.inc b/runkernel.inc index 0ff4562b..148d083b 100644 --- a/runkernel.inc +++ b/runkernel.inc @@ -535,6 +535,10 @@ loadinitrd: pop es ; Restore original ES ret + section .data +boot_image db 'BOOT_IMAGE=' +boot_image_len equ $-boot_image + section .bss alignb 4 RamdiskMax resd 1 ; Highest address for ramdisk @@ -227,21 +227,63 @@ clin_opt_ok: ; ; Now check if it is a "virtual kernel" ; - mov cx,[VKernelCtr] - push ds +vk_check: + xor si,si ; Beginning of vk_seg push word vk_seg pop ds - cmp cx,byte 0 - je not_vk - xor si,si ; Point to first vkernel -vk_check: pusha +.scan: + cmp si,[VKernelBytes] + jae .not_vk + mov di,VKernelBuf + call rllunpack + ; SI updated on return + sub di,cx ; Return to beginning of buf + push si mov cx,FILENAME_MAX - repe cmpsb ; Is this it? - je vk_found - popa - add si,vk_size - loop vk_check -not_vk: pop ds + es repe cmpsb + je .found + jmp .scan + +; +; We *are* using a "virtual kernel" +; +.found: + push es + push word real_mode_seg + pop es + mov di,cmd_line_here + mov si,VKernelBuf+vk_append + mov cx,[VKernelBuf+vk_appendlen] + rep movsb + mov [CmdLinePtr],di ; Where to add rest of cmd + pop es + mov di,KernelName + push di + mov si,VKernelBuf+vk_rname + mov cx,FILENAME_MAX ; We need ECX == CX later + rep movsb + pop di +%if IS_PXELINUX + mov al,[VKernelBuf+vk_ipappend] + mov [IPAppend],al +%endif + xor bx,bx ; Try only one version + +%if IS_SYSLINUX || IS_MDSLINUX + jmp get_kernel +%else + ; Is this a "localboot" pseudo-kernel? + cmp byte [VKernelBuf+vk_rname], 0 + jne get_kernel ; No, it's real, go get it + + mov ax, [VKernelBuf+vk_rname+1] + jmp local_boot +%endif + +.not_vk: + push cs + pop ds + ; ; Not a "virtual kernel" - check that's OK and construct the command line ; @@ -346,48 +388,6 @@ on_error: jmp load_kernel ; -; vk_found: We *are* using a "virtual kernel" -; -vk_found: popa - push di - mov di,VKernelBuf - mov cx,vk_size >> 2 - rep movsd - push es ; Restore old DS - pop ds - push es - push word real_mode_seg - pop es - mov di,cmd_line_here - mov si,VKernelBuf+vk_append - mov cx,[VKernelBuf+vk_appendlen] - rep movsb - mov [CmdLinePtr],di ; Where to add rest of cmd - pop es - pop di ; DI -> KernelName - push di - mov si,VKernelBuf+vk_rname - mov cx,FILENAME_MAX ; We need ECX == CX later - rep movsb - pop di -%if IS_PXELINUX - mov al,[VKernelBuf+vk_ipappend] - mov [IPAppend],al -%endif - xor bx,bx ; Try only one version - -%if IS_SYSLINUX || IS_MDSLINUX - jmp get_kernel -%else - ; Is this a "localboot" pseudo-kernel? - cmp byte [VKernelBuf+vk_rname], 0 - jne get_kernel ; No, it's real, go get it - - mov ax, [VKernelBuf+vk_rname+1] - jmp local_boot -%endif - -; ; kernel_corrupt: Called if the kernel file does not seem healthy ; kernel_corrupt: mov si,err_notkernel @@ -476,9 +476,5 @@ KernelExtPtr resw 1 ; During search, final null pointer CmdOptPtr resw 1 ; Pointer to first option on cmd line KbdFlags resb 1 ; Check for keyboard escapes FuncFlag resb 1 ; Escape sequences received from keyboard - alignb 4 ; For the good of REP MOVSD -command_line resb max_cmd_len+2 ; Command line buffer - alignb 4 -default_cmd resb max_cmd_len+1 ; "default" command line section .text |