In safeint mode, don't bother testing for unchanged INT 15h.  It
points back at ourselves, anyway, and we end up doing, in the end, the
same thing as the safeint stub would do.

Furthermore, the test was broken for years, and so this is actually
closer to what we originally tested.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

Signed-off-by: Sergey Vlasov <vsu@altlinux.ru>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

Make _Exit just an ordinary symbol which aliases _exit.  This avoids
some versions of gcc complaining about the inline, which is rather
unnecessary anyway.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

Older versions of gcc/binutils apparently really want parentheses
around macro arguments.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

Adopt the moniker "The Syslinux Project", ordinary proper noun
capitalization, to refer to the project as a whole.  This leaves the
all-caps SYSLINUX to refer to the FAT loader only.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

Drop a newline we didn't need after all.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

There is enough evidence that "safeint" is a decent compromise between
The Right Thing[TM] and dealing with the reality of ultra-broken
DOSen.  Make it the default.

Clean up some of the command-line parsing code and status printing.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

Add support for ACPI 3 and certain broken e820 implementations in the
meminfo program.  Some e820 implementations expect the buffer to
remain the same between different invocations, despite the fact that
there is absolutely no guarantee to that effect in the spec.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

Signed-off-by: H. Peter Anvin <hpa@zytor.com>