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NASM 2.11.06 is known to miscompile Syslinux, so error out on that
NASM version.
Kind of embarrassing for me...
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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vkernel.inc is related to the old assembly-based config file parser;
it is no longer relevant.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
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Generalize the ipappend handling to cover all the derivatives, and
rename it "sysappend" ("ipappend" is a valid alias for all
derivatives.) Move all the string handling to protected mode.
Currently only pxelinux exports strings, but the plan is to change
that in the future.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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We have needed NASM 2.03+ for a long time.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
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NASM 0.98.39, the last 0.98.x supported version, is known to
miscompile Syslinux; the fix is
b0e1d423dd3e174a92a1d7256aec4e9b701ece3c and was added in
NASM 0.99.06. Since NASM 0.99.x were alpha test releases, require
NASM 2.00 which was the first "real" release after the fix.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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Conflicts:
core/bcopy32.inc
core/cleanup.inc
core/conio.inc
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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If we enable interrupts for the serial console, add a proper interrupt
handler. Since we don't know what vector we'll end up using, or if we
are shared with other devices, simply hook *all* the interrupts and
poll the serial port then.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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Add a pm_call convenience macro, instead of using stub routines
everywhere. Stubs would still make sense if we have a routine which
gets invoked from a lot of places, though, since the pm_call expands
to 9 bytes as opposed to 3 bytes per call site plus a 10-byte stub.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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Simplify the pm_call usage:
- pm_call now saves and restores all registers
callees that want to return values in registers can mess with
the frame on the stack
- the PM function now enters with EAX = EBP = RM stack
(EAX for the use of C code, EBP for assembly)
- the RM stack frame matches com32sys_t
- pmcall.inc defined macros for the stack frame based on EBP
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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Move source files out of the root directory; the root is a mess and
has become virtually unmaintainable. The Syslinux core now lives in
core/; the Linux and generic utilities has moved into utils/, and
copybs.com has moved into dos/; it had to go somewhere, and it seemed
as good a place as any.
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