delta/syslinux.git/com32/elflink, branch syslinux-6.00-pre3

Merge tag 'syslinux-5.00' into firmware

2012-12-07T11:33:45+00:00

Conflicts:
	Makefile
	com32/elflink/ldlinux/Makefile
	com32/lib/sys/module/elf_module.c
	core/cleanup.c
	core/comboot.inc
	core/conio.c
	core/fs/fs.c
	core/init.c
	core/mem/free.c
	core/mem/malloc.c
	core/timer.inc
	diag/geodsp/Makefile
	extlinux/main.c
	mk/embedded.mk
	modules/Makefile

Signed-off-by: Matt Fleming

Delete 16-bit COMBOOT support

2012-12-06T10:47:31+00:00

16-bit COMBOOT files are no longer supported by Syslinux in 5.00 so
delete all references and change any 32-bit COMBOOT image references
to mention ELF instead.

Some of the COMBOOT stuff is still used internally so we can't nuke
core/comboot.inc yet, but that will disappear in a future release.

Signed-off-by: Matt Fleming

Symbol export whitelist

2012-12-05T22:41:32+00:00

Before modules were dynamically loaded the boundary between GPL and
non-GPL code was implicit because of the separate link domains for
each module. With dynamic modules we need an explicit whitelist of
core symbols that non-GPL code can link against at runtime without
needing to be re-licensed under the GPL.

Mark such symbols with __export, so that it is explicitly clear which
symbols in the core can be linked against by non-GPL code.

Reduce the visibility of symbols in both the core and ldlinux.c32 with
-fvisibility=hidden. __export changes the visibility to 'default'.

Signed-off-by: Matt Fleming

core: Fix 'NoHalt'

2012-12-05T21:18:18+00:00

Use the same variable in idle.c and ldlinux.c32.

Signed-off-by: Matt Fleming

Reduce the number of global variables

2012-12-05T20:07:11+00:00

In preparation for strictly limiting the list of variables that are
exported (global) in the core, delete any unused variables, rewrite
variable declarations in C that are not referenced by asm and delete
files that are no longer included in other asm files.

Cc: H. Peter Anvin 
Signed-off-by: Matt Fleming

ldlinux: Use get_msg_file() for F-keys

2012-12-04T12:02:39+00:00

The file that we display with the F-keys may contain background or
foreground color codes and so needs to be interpreted by
get_msg_file() instead of just printing the color codes as ascii to
the screen with cat_file().

Signed-off-by: Matt Fleming

ldlinux: Remove default bold attribute typo

2012-12-04T11:56:04+00:00

commit 82cbb1bd4133 ("ldlinux: Move DISPLAY file handling out of the
core") introduced a typo where the foreground color was always bold
when displaying a DISPLAY file.

Reported-by: Ady 
Signed-off-by: Matt Fleming

CLI: Don't always start the CLI at column 0

2012-12-04T11:50:19+00:00

If we print files with no newline then it looks better if the CLI
prompt is printed immediately after the file content, rather than
erasing the line and printing prompt at column 0.

This mainly affects files with one line of text and no newline
character.

Signed-off-by: Matt Fleming

ldlinux: Move DISPLAY file handling out of the core

2012-12-03T13:54:46+00:00

The code that handles the DISPLAY directive was writing directly to
the BIOS VGA page with __intcall(0x10). This caused corruption
problems on the screen because the ansi library code was also writing
to the screen.

The correct way to fix this is to always use the ansi library code
(via printf()) instead of going behind its back and using separate
code paths to write to the screen.

Reported-by: Ady 
Signed-off-by: Matt Fleming

ldlinux: Don't try reloading ldlinux.c32 unless it's likely to succeed

2012-11-30T11:04:23+00:00

If we can't access ldlinux.c32 with findpath(), reloading it isn't
going to work so don't unload it or any of the other modules. Instead
return control to the caller.

Signed-off-by: Matt Fleming