H. Peter Anvin [Sat, 1 Mar 2008 20:46:54 +0000 (12:46 -0800)]
Add a slightly edited version of SubmittingPatches.
H. Peter Anvin [Fri, 29 Feb 2008 20:02:36 +0000 (12:02 -0800)]
Document the file renaming from .doc -> .txt
H. Peter Anvin [Fri, 29 Feb 2008 00:04:08 +0000 (16:04 -0800)]
Rename text documentation from *.doc to *.txt
Rename plaintext documentation from doc/*.doc to doc/*.txt, to avoid
the chronic problem of web sites thinking they're in MS-Word format.
Sigh. As if Microsoft somehow had a monopoly on the word "document".
H. Peter Anvin [Wed, 27 Feb 2008 23:09:08 +0000 (15:09 -0800)]
Don't use "syslinux.cfg" to refer to config files in general
When printing error messages about configuration files, don't
necessarily call it "syslinux.cfg".
H. Peter Anvin [Tue, 26 Feb 2008 22:50:05 +0000 (14:50 -0800)]
Remove pngtopnm dependency from the samples/ directory
Ship syslogo.ppm.gz instead of syslogo.png, thereby eliminating a
dependency on pngtopnm which apparently isn't installed by default on
some distros.
H. Peter Anvin [Tue, 26 Feb 2008 05:10:12 +0000 (21:10 -0800)]
extlinux: compile hack for old distros
Some old distros would have <linux/fs.h> poison the namespace with a
non-glibc "struct statfs". Hack around it.
H. Peter Anvin [Fri, 22 Feb 2008 19:16:45 +0000 (11:16 -0800)]
Allow MENU EXIT to specify a menu tag
Allow MENU EXIT to "exit" to an arbitrary menu. This is really just a
variant of "MENU GOTO", but it allows displaying an exit marker.
H. Peter Anvin [Fri, 22 Feb 2008 19:03:34 +0000 (11:03 -0800)]
Fix the handling of hotkeys in MENU LABEL on submenus
Two bugs:
- We didn't strip ^ symbols inheriting from MENU LABEL to MENU TITLE
- We did consider_for_hotkey() with the wrong menu (the submenu
itself, as opposed to the parent menu.)
As part of these changes, make a function available to create an
uninitialized, mutable refstring (that can be constructed and then
used as a refstring, that is.)
H. Peter Anvin [Fri, 22 Feb 2008 02:49:43 +0000 (18:49 -0800)]
NEWS: Document Bruce Robson's Adaptec bug fix
H. Peter Anvin [Fri, 22 Feb 2008 02:17:49 +0000 (18:17 -0800)]
realloc(): try to protect a block in the path of a growing object
When we realloc() a block larger, try to protect the free block
following it from being immediately allocated by something else by
placing it at the end of the freelist instead of the beginning.
H. Peter Anvin [Fri, 22 Feb 2008 01:59:56 +0000 (17:59 -0800)]
realloc(): better implementation allowing in-place growth
Change the realloc() implementation to allow in-place growth. This is
an important step in handling files without knowing their sizes a
priori.
H. Peter Anvin [Wed, 20 Feb 2008 23:56:33 +0000 (15:56 -0800)]
"begin Ymodem download" is supposed to be an imperative...
H. Peter Anvin [Wed, 20 Feb 2008 02:40:37 +0000 (18:40 -0800)]
Fix MENU TITLE -> MENU LABEL inheritance
Correctly make it so MENU TITLE can be inherited upward as MENU TITLE
unless one is provided.
H. Peter Anvin [Wed, 20 Feb 2008 02:34:14 +0000 (18:34 -0800)]
Make sure color directives get attached to the proper menu.
Color directives would always end up attached to the root menu, no
matter what menu declaration they where actually located in.
H. Peter Anvin [Wed, 20 Feb 2008 02:27:35 +0000 (18:27 -0800)]
simple menu: fix the handling of '+' and '-' given disabled entries
When encountering disabled entries, we want to keep going. Given that
these particular keys have nonstandard scrolling, but the handling there.
H. Peter Anvin [Wed, 20 Feb 2008 02:25:08 +0000 (18:25 -0800)]
Fix the scrollbar handling for insanely huge menus
The handling of the scrollbar for insanely huge menus was broken,
causing it to disappear off the bottom of the menu window.
H. Peter Anvin [Wed, 20 Feb 2008 02:21:08 +0000 (18:21 -0800)]
simple menu: remember the cursor position on a per-menu basis
For each menu, remember what the current position of the cursor and
the scroll is.
H. Peter Anvin [Wed, 20 Feb 2008 02:14:24 +0000 (18:14 -0800)]
Add support for MENU EXIT; no marker for MENU GOTO
H. Peter Anvin [Wed, 20 Feb 2008 02:13:47 +0000 (18:13 -0800)]
When entering a new menu, go to the default entry for that menu.
H. Peter Anvin [Wed, 20 Feb 2008 01:15:18 +0000 (17:15 -0800)]
Document MENU START
H. Peter Anvin [Wed, 20 Feb 2008 00:52:36 +0000 (16:52 -0800)]
Whitespace cleanup...
H. Peter Anvin [Wed, 20 Feb 2008 00:48:21 +0000 (16:48 -0800)]
com32: remove dependency files for "make tidy"
H. Peter Anvin [Wed, 20 Feb 2008 00:47:09 +0000 (16:47 -0800)]
Add dependency generation for com32 samples.
H. Peter Anvin [Wed, 20 Feb 2008 00:45:42 +0000 (16:45 -0800)]
Add dependency generation for com32 modules.
H. Peter Anvin [Wed, 20 Feb 2008 00:44:52 +0000 (16:44 -0800)]
Add dependency generation for the simple menu system
H. Peter Anvin [Wed, 20 Feb 2008 00:42:40 +0000 (16:42 -0800)]
Set m->title for both root and submenus
H. Peter Anvin [Wed, 20 Feb 2008 00:41:44 +0000 (16:41 -0800)]
Allow MENU LABEL <-> MENU TITLE for submenus to work both ways
Allow either "MENU LABEL" or "MENU TITLE" to default for each other.
H. Peter Anvin [Wed, 20 Feb 2008 00:37:50 +0000 (16:37 -0800)]
Allow an included file to be treated as a submenu.
H. Peter Anvin [Wed, 20 Feb 2008 00:25:26 +0000 (16:25 -0800)]
Document hierarchial menus so far...
H. Peter Anvin [Wed, 20 Feb 2008 00:16:03 +0000 (16:16 -0800)]
simple menu: The use of realloc() requires indirect pointers
Since we store pointers to struct menu_entry, we can't put it in
storage that is subject to realloc(). Accordingly, make menu_entries
an indirect array instead.
H. Peter Anvin [Tue, 19 Feb 2008 23:33:36 +0000 (15:33 -0800)]
simple menu: first cut at working submenus
With this edit, the submenu system seems to have minimal
functionality.
H. Peter Anvin [Tue, 19 Feb 2008 23:33:15 +0000 (15:33 -0800)]
refstr: handle NULL in refstr[n]dup()
H. Peter Anvin [Tue, 19 Feb 2008 22:08:50 +0000 (14:08 -0800)]
Simple menu: use refstrings consistently; now works again
Switch consistently to using refstrings; we now seem to have original
functionality back.
H. Peter Anvin [Tue, 19 Feb 2008 22:08:06 +0000 (14:08 -0800)]
refstr_get(): handle NULL, force inline
Make refstr_get() handle NULL correctly; force it to be an inline
since it seems to make no difference for code size.
H. Peter Anvin [Tue, 19 Feb 2008 22:07:44 +0000 (14:07 -0800)]
[v]rsprintf(): actually set the return pointer...
H. Peter Anvin [Tue, 19 Feb 2008 19:15:20 +0000 (11:15 -0800)]
submenu snapshot: it compiles now...
H. Peter Anvin [Mon, 18 Feb 2008 23:58:01 +0000 (15:58 -0800)]
Actually implement strnlen()
Actually implement strnlen(), which was in the header files but not in
the library.
H. Peter Anvin [Mon, 18 Feb 2008 23:55:53 +0000 (15:55 -0800)]
Actually implement syslinux_ipappend_strings()
Actually implement the library function syslinux_ipappend_strings(),
which had been in the header files but not in the actual library.
H. Peter Anvin [Sun, 17 Feb 2008 22:11:13 +0000 (14:11 -0800)]
Submenu support: development snapshot
Development snapshot before converting to refstrings
H. Peter Anvin [Tue, 19 Feb 2008 02:09:03 +0000 (18:09 -0800)]
memdump: fix typo
H. Peter Anvin [Sun, 17 Feb 2008 03:16:40 +0000 (19:16 -0800)]
VESA: work around bug in the Bochs VESA BIOS
The Bochs VESA BIOS returns a value other than 1 for the number of
banks in unbanked modes. Ignore the number of banks if bank_size == 0
(the spec says that for unbanked modes, banks == 1 && bank_size == 0;
for banked modes banks > 1 and bank_size != 0).
H. Peter Anvin [Sun, 17 Feb 2008 02:44:57 +0000 (18:44 -0800)]
rllback: improve compression by allowing two-byte run lengths
With the command line size being set to 2K, it's common to need longer
runs. Allow runs up to 8K.
Bruce Robson [Sun, 17 Feb 2008 00:06:18 +0000 (16:06 -0800)]
ISOLINUX: Adaptec bug fix: handle the case of DL missing bit 7
Intel Classic R+ computer with Adaptec 1542CP BIOS 1.02 passes garbage
in sp_drive, and the drive number originally passed in DL does not
have 80h bit set. Check for this case and compensate if appropriate.
H. Peter Anvin [Sat, 16 Feb 2008 08:32:53 +0000 (00:32 -0800)]
Get rid of 4096-entry limit in the simple menu system
Use a dynamic array instead of a static array which we would simply
crash on overflow. Always make it a power-of-two sized so we don't
end up doing a realloc() and a full array copy on every extend.
H. Peter Anvin [Sat, 16 Feb 2008 08:13:50 +0000 (00:13 -0800)]
If we're showing a scrollbar, always show at least one unit
In the simple menu system, if we're showing a scrollbar at all, always
show at least one unit of it.
H. Peter Anvin [Sat, 16 Feb 2008 06:51:46 +0000 (22:51 -0800)]
Put virtual kernels (CLI labels) in high memory
Support putting virtual kernels in high memory instead of using a
dedicated segment for it. This both reduces the low memory footprint
by 64K, and allows for functionally unlimited labels (tested with over
a hundred thousand.)
H. Peter Anvin [Sat, 16 Feb 2008 06:50:29 +0000 (22:50 -0800)]
hello.c: print arguments, no input section
Make "Hello, World!" a little bit more plain, but do print out its
arguments, if any. Useful for testing.
H. Peter Anvin [Sat, 16 Feb 2008 06:35:18 +0000 (22:35 -0800)]
Don't close the A20 gate; leave it open
Don't close the A20 gate (restore to previous state); leave it open.
This is good for performance, but also avoids a nasty race condition
when leaving protected mode to then quickly re-enter protected mode.
H. Peter Anvin [Sat, 16 Feb 2008 02:32:12 +0000 (18:32 -0800)]
Slightly simpler to use interface to simple_pm_call
Clean up the interface to simple_pm_call so we generally can avoid a
bunch of push/call/pop/ret boilerplate.
H. Peter Anvin [Sat, 16 Feb 2008 02:10:54 +0000 (18:10 -0800)]
bcopy32: refactor the bcopy routine to be able to reuse the pm part
Refactor the bcopy routine to be able to reuse the pm entry and exit
portion to call other "simple" protected-mode routines ("simple" in
the sense that no interrupt thunking support is present or expected.)
Note: consider whether or not it would be preferrable to move the
thunking support into low memory and have it be always present.
H. Peter Anvin [Thu, 14 Feb 2008 08:02:43 +0000 (00:02 -0800)]
VESA: suppress an unused arguments warning
Suppress a warning about unused arguments.
H. Peter Anvin [Thu, 14 Feb 2008 08:02:12 +0000 (00:02 -0800)]
VESA: align the row buffer to a multiple of 4 bytes.
We do dword accesses to the row buffer, so align it to 4 bytes.
H. Peter Anvin [Thu, 14 Feb 2008 08:01:20 +0000 (00:01 -0800)]
Add __aligned() and __alignas() macros
Add macros __aligned() (which takes a byte count), and __alignas()
(which takes a type or expression whose type is used, same as sizeof).
H. Peter Anvin [Thu, 14 Feb 2008 06:37:33 +0000 (22:37 -0800)]
VESA: Minor cleanups
Minor cleanups for clarity
H. Peter Anvin [Thu, 14 Feb 2008 06:21:37 +0000 (22:21 -0800)]
VESA: move debugging code to separate header file
Move the debugging function to a separate header file, so we can
include it at will when convenient.
H. Peter Anvin [Thu, 14 Feb 2008 06:17:03 +0000 (22:17 -0800)]
Set the window size to 2 GB for linear framebuffer
Set the window size to 2 GB for linear framebuffer, lest the
calculation:
l = min(bytes, win_size-win_off);
... incorrectly returns zero when win_off == 0.
H. Peter Anvin [Thu, 14 Feb 2008 05:43:00 +0000 (21:43 -0800)]
Bypass pixel conversion when the output format is BGRA32
When the output format is BGRA32, we don't need any conversion at
all. Skip the dummy copy.
H. Peter Anvin [Thu, 14 Feb 2008 05:38:37 +0000 (21:38 -0800)]
Treat linear framebuffer as a degenerate paged framebuffer
Simplify the code by treating linear framebuffer as a degenerate case
of a paged framebuffer (a single window covering all of memory, which
is already in position 0 - the only possible position.)
H. Peter Anvin [Thu, 14 Feb 2008 03:00:12 +0000 (19:00 -0800)]
VESA: move pixel formatting into __vesacon_copy_to_screen()
Make pixel formatting an integral part of __vesacon_copy_to_screen().
In order to cut down on the dispatch overhead, make the formatting
functions contain the pixel loop, so we only do indirect dispatch
twice per pixel row - once for the formatting and once for copying to
the screen.
H. Peter Anvin [Thu, 14 Feb 2008 02:03:17 +0000 (18:03 -0800)]
Fix the calculation of bytes_per_pixel
Handle cases where __vesa_info.mi.bpp is not a multiple of 8, e.g. 15.
Remove totally redundant switch statement in vesacon_update_characters().
H. Peter Anvin [Thu, 14 Feb 2008 01:49:38 +0000 (17:49 -0800)]
Replace C version of memmove() with slightly optimized assembly
Replace the C version of memmove() with a slightly more optimized
assembly version that at least can do dword-sized rep moves.
H. Peter Anvin [Thu, 14 Feb 2008 00:08:27 +0000 (16:08 -0800)]
Document support for nonlinear frame buffers.
H. Peter Anvin [Thu, 14 Feb 2008 00:06:29 +0000 (16:06 -0800)]
VESA: Support 15-bit RGB modes.
If there are manufacturers which don't support linear framebuffers out
there, then there is probably someone who want a 15-bit mode, too.
H. Peter Anvin [Thu, 14 Feb 2008 00:05:06 +0000 (16:05 -0800)]
Add support for paged (banked) VESA video mode
Add support for paged ("banked", non-linear-framebuffer) VESA video
modes. Apparently some manufacturers haven't caught on that
non-linear graphics modes have been obsolete for 15 years or so
already.
H. Peter Anvin [Wed, 13 Feb 2008 18:58:29 +0000 (10:58 -0800)]
Correct comment specific to SYSLINUX in the other derivatives
There was a comment which applied to SYSLINUX that had been copied
verbatim to the other derivatives; fix.
H. Peter Anvin [Wed, 13 Feb 2008 18:56:39 +0000 (10:56 -0800)]
isolinux: spec buffer size is 13h (19), not 13
The El Torito spec says "13", but it's implicitly hexadecimal. We got
it right in one place and wrong in another. Fix.
H. Peter Anvin [Wed, 13 Feb 2008 02:38:39 +0000 (18:38 -0800)]
The shuffle descriptors need to be unused for input *and* output
The memory used to hold shuffle descriptors must be unused during the
entire execution of the shuffle sequence, and therefore needs to be
free at input *and* output time.
Once we have picked a region for the shuffle descriptors, we can free
this working copy and start over with a clean memory map, the only
thing we do there is mark as reserved the memory used by the
descriptors.
H. Peter Anvin [Wed, 13 Feb 2008 00:53:20 +0000 (16:53 -0800)]
Change the minimum number of shuffle descriptors to 64.
Only use 64 as a static guarantee of the number of shuffle
descriptors; corresponding to 768 bytes of memory.
H. Peter Anvin [Wed, 13 Feb 2008 00:47:39 +0000 (16:47 -0800)]
Query the shuffle descriptor set size and use it
Query the maximum number of shuffle descriptors, and use that number
as the descriptor block size.
H. Peter Anvin [Wed, 13 Feb 2008 00:39:17 +0000 (16:39 -0800)]
Move the prototypes for syslinux_shuffle_boot_*()
Move the prototypes for syslinux_shuffle_boot_[pr]m() from
<syslinux/movebits.h> to <syslinux/boot[pr]m.h>, which anyway has the
required structure definitions. #include <syslinux/movebits.h> in
those files instead of relying on forward structure definitions.
H. Peter Anvin [Wed, 13 Feb 2008 00:05:04 +0000 (16:05 -0800)]
A bit more exactitude in the documentation
H. Peter Anvin [Tue, 12 Feb 2008 23:56:45 +0000 (15:56 -0800)]
Switch the display file and graphics routines to using the getc stack
The file display and graphics routines used their own file management
since the old getc code did not nest. The new one does (necessary to
support INCLUDE), so use the same routines and get rid of the ad hoc
buffer management.
H. Peter Anvin [Tue, 12 Feb 2008 23:48:25 +0000 (15:48 -0800)]
getc: don't clobber AH; return CF=1, AL=0 on end of file
Don't clobber AH when calling getc; when returning with CF=1 (EOF),
always return with AL=0.
H. Peter Anvin [Tue, 12 Feb 2008 22:11:06 +0000 (14:11 -0800)]
NEWS: document longer command line limit.
H. Peter Anvin [Tue, 12 Feb 2008 22:10:13 +0000 (14:10 -0800)]
simple menu: extend command line size to 2047 characters
Extend the command line size to 2047 characters. The editor probably
doesn't deal all that well with it; as it pretty much needs a
scrolling window of some sort (2047 characters is bigger than an 80x25
screen.)
Worry about that bit later.
H. Peter Anvin [Tue, 12 Feb 2008 21:09:07 +0000 (13:09 -0800)]
Change command line limit to 2047 characters
Change the command line limit to 2047 characters, which is also the
current kernel limit. As a result, shuffle around the memory layout
to make the larger buffers fit.
TODO: consider moving vgafontbuf to getcseg, and try to make do with
fewer command line-sized buffers.
H. Peter Anvin [Tue, 12 Feb 2008 08:32:24 +0000 (00:32 -0800)]
Remove last users of getcbuf; reclaim the address space
Remove the last few uses of getcbuf (to extend trackbuf for shuffle
descriptors, and for temp storage during pxelinux config file search.)
As a result, change the way RBFG_brainfuck is handled in pxelinux (at
some point it's probably not worth maintaining anymore, as RBFG is no
longer widely used); add a .bss2 section for the region between the
RBFG zone and the stack.
H. Peter Anvin [Tue, 12 Feb 2008 02:35:41 +0000 (18:35 -0800)]
shuffle: avoid computing block lists that will never converge
It is safe to assume that the number of moves will never decrease as
the reserved memory space increases; thus, no need to do individual
increments; skip ahead.
H. Peter Anvin [Tue, 12 Feb 2008 02:00:15 +0000 (18:00 -0800)]
Document changes
H. Peter Anvin [Tue, 12 Feb 2008 01:55:29 +0000 (17:55 -0800)]
Handle arbitrary numbers of shuffle descriptors
Allocate high memory out of the way to hold the shuffle descriptors,
and generate continuation descriptors as needed.
H. Peter Anvin [Tue, 12 Feb 2008 01:54:18 +0000 (17:54 -0800)]
comboot: guarantee at least 256 shuffle descriptors
Make a static guarantee of a minimum of 256 shuffle descriptors.
H. Peter Anvin [Tue, 12 Feb 2008 01:34:21 +0000 (17:34 -0800)]
Working on version 3.62
H. Peter Anvin [Mon, 11 Feb 2008 06:53:07 +0000 (22:53 -0800)]
simple menu: support sha256 and sha512 passwords
Add support for sha256 and sha512 passwords in the simple menu system.
H. Peter Anvin [Mon, 11 Feb 2008 06:52:36 +0000 (22:52 -0800)]
com32/*: move _GNU_SOURCE definitions into Makefiles
We need _GNU_SOURCE when compiling for Linux in enough places. Just
move it to the LNXCFLAGS definition in the Makefiles.
H. Peter Anvin [Mon, 11 Feb 2008 06:50:32 +0000 (22:50 -0800)]
libutil: add header file <xcrypt.h> for extended crypt routines
Add a common header file, xcrypt.h, for the various extended crypt
routines (md5, sha256, sha512).
H. Peter Anvin [Mon, 11 Feb 2008 06:48:25 +0000 (22:48 -0800)]
mempcpy(): correct naming of the mempcpy() function
All the internal symbols in mempcpy.S were "memcpy", which is
obviously wrong.
H. Peter Anvin [Mon, 11 Feb 2008 06:35:00 +0000 (22:35 -0800)]
simple menu: update copyright notices; clean whitespace
H. Peter Anvin [Mon, 11 Feb 2008 06:32:46 +0000 (22:32 -0800)]
simple menu: break password comparisons out into a separate file
Move passwd_compare() into a separate source file, for cleanliness.
H. Peter Anvin [Mon, 11 Feb 2008 06:31:32 +0000 (22:31 -0800)]
menu.c: add missing return statement
draw_background() returns int; make it return 0.
H. Peter Anvin [Mon, 11 Feb 2008 06:26:06 +0000 (22:26 -0800)]
Simple menu system: move to dedicated subdirectory
Move the simple menu system into its own subdirectory, to make it more
obvious which source files are part of it.
H. Peter Anvin [Fri, 8 Feb 2008 22:59:59 +0000 (14:59 -0800)]
memdump: avoid comma in filenames
Avoid using commas in filenames, since not all systems can handle
them.
H. Peter Anvin [Fri, 8 Feb 2008 22:57:49 +0000 (14:57 -0800)]
memdump: add .bin suffix to generated filenames
Add a .bin suffix to generated filenames
H. Peter Anvin [Fri, 8 Feb 2008 18:48:42 +0000 (10:48 -0800)]
Zero-terminate "aborted." string.
The string "aborted." was missing a null terminator.
H. Peter Anvin [Fri, 1 Feb 2008 23:46:33 +0000 (15:46 -0800)]
Document e820 parser change.
H. Peter Anvin [Fri, 1 Feb 2008 23:45:51 +0000 (15:45 -0800)]
E820 parser: handle BIOSes with multiple contiguous regions
Well, it has finally happened: a bug report regarding a BIOS with
emits multiple contiguous memory regions. Handle that case, and
(hopefully) simplify the logic while we're at it.
H. Peter Anvin [Tue, 29 Jan 2008 05:50:24 +0000 (21:50 -0800)]
Document fixing MD5 passwords.
H. Peter Anvin [Tue, 29 Jan 2008 05:49:42 +0000 (21:49 -0800)]
menu: clean up and fix MD5 password code
MD5 password code would append the encrypted password to a previous
password, with the result that it would never match after picking a
wrong password. Fix.
H. Peter Anvin [Thu, 24 Jan 2008 22:22:29 +0000 (14:22 -0800)]
extlinux: early check for ext2/ext3-ness of filesystem
Verify that we have an ext2 or ext3 filesystem early on.
H. Peter Anvin [Wed, 23 Jan 2008 07:16:32 +0000 (23:16 -0800)]
meminfo.c32: a program to dump out the system memory map
Handy little utility for dumping out the system memory map. Changes
no other code.
H. Peter Anvin [Tue, 22 Jan 2008 22:52:47 +0000 (14:52 -0800)]
mbr: save another 5 bytes by terminating error on newline
Save another 5 bytes by making the newline character do double duty as
newline and string terminator.