1
0
mirror of https://git.FreeBSD.org/src.git synced 2025-01-04 12:52:15 +00:00
freebsd/stand/i386
Ed Maste 1596e9a43c stand: remove CLANG_NO_IAS from cdboot
Many components under stand/ had CLANG_NO_IAS added when Clang's
Integrated Assembler (IAS) did not handle .codeNN directives.  Clang
gained support quite some time ago, and we can now build stand/ with
IAS.  In most cases IAS- and GNU as-assembled boot components were
identical, and CLANG_NO_IAS was already removed from other components.

Clang IAS produces different output for some components, including
cdboot, so CLANG_NO_IAS was not previously removed for those.

In the case of cdboot the difference is that IAS adds a size override
prefix (67h) to many instructions to specify a 32-bit address, even
though the two high bytes are zero.  This wastes three bytes per
instance, but as cdboot is not size-constrained it doesn't matter.
Padding is also different in one case; Clang used two one-byte nops
while GNU as used a single two-byte xchg %eax, %eax.  In any case, there
is no functional change.

Sponsored by:   The FreeBSD Foundation
2019-08-15 17:32:39 +00:00
..
boot0
boot0sio
boot2 stand: remove CLANG_NO_IAS from boot2 2019-08-15 14:54:18 +00:00
btx
cdboot stand: remove CLANG_NO_IAS from cdboot 2019-08-15 17:32:39 +00:00
common
gptboot
gptzfsboot loader: support com.delphix:removing 2019-08-08 18:08:13 +00:00
isoboot
libfirewire
libi386
loader Verify files loaded in chain command. 2019-08-08 17:03:30 +00:00
loader_4th
loader_lua
loader_simp
mbr
pmbr
pxeldr
zfsboot loader: support com.delphix:removing 2019-08-08 18:08:13 +00:00
boot.ldscript
Makefile
Makefile.inc