| Commit message (Collapse) | Author | Age | Files | Lines |
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Move most arch/i386 files to arch/x86, and adjust the contents of the
Makefiles and the include/bits/*.h headers to reflect the new
locations.
This patch makes no substantive code changes, as can be seen using a
rename-aware diff (e.g. "git show -M5").
This patch does not make the pcbios platform functional for x86_64; it
merely allows it to compile without errors.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
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Calling the parent PXE stack (the stack that loaded us, for
undionly.kkpxe) can be useful for more than UNDI calls; for instance,
it lets us get cached DHCP packets to avoid re-DHCP when working with
embedded images.
Signed-off-by: Marty Connor <mdc@etherboot.org>
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Add FILE_LICENCE declarations to almost all files that make up the
various standard builds of gPXE.
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Try to avoid future problems caused by implicit section flags and/or
type information by instituting a policy that all .section
declarations must explicitly state the flags and type.
Most of this change was achieved using
perl -pi \
-e 's/".text"$/".text", "ax", \@progbits/ ; ' \
-e 's/".text16"$/".text16", "ax", \@progbits/ ; ' \
-e 's/".text16.null"$/".text16.null", "ax", \@progbits/ ; ' \
-e 's/".text16.data"$/".text16.data", "aw", \@progbits/ ; ' \
-e 's/".data"$/".data", "aw", \@progbits/ ; ' \
-e 's/".data16"$/".data16", "aw", \@progbits/ ; ' \
-e 's/".bss"$/".bss", "aw", \@nobits/ ; ' \
-e 's/".bss16"$/".bss16", "aw", \@nobits/ ; ' \
-e 's/".prefix"$/".prefix", "ax", \@progbits/ ; ' \
-e 's/".prefix.lib"$/".prefix.lib", "awx", \@progbits/ ; ' \
-e 's/".prefix.data"$/".prefix.data", "aw", \@progbits/ ; ' \
-e 's/".weak"$/".weak", "a", \@nobits/ ; ' \
`git grep -l '\.section'`
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Since we don't know what the UNDI code does, it is safest to
save/restore %eflags even though the lower half of %eflags is
automatically saved by the interrupt itself.
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As written, if the if the UNDI ISR call clobbers the upper halves of
any of the GPRs (which by convention it is permitted to do, and by
paranoia should be expected to do) then nothing in the interrupt
handler will recover the state.
Additionally, save/restore %fs and %gs out of sheer paranoia - it's a
cheap enough operation, and may prevent problems due to poorly written
UNDI stacks.
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Always send EOI; do not chain to BIOS's default interrupt handler.
They are just too unpredictable; at least VMware's seems to kill the
machine if you go anywhere near it.
Disable interrupts after return from PXENV_UNDI_ISR, just in case some
dumb PXE stack enables them.
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