CVS log for src/sys/arch/i386/stand/Makefile.inc

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Pull up following revision(s) (requested by rin in ticket #498):

	sys/arch/i386/stand/dosboot/Makefile: revision 1.35
	sys/arch/i386/stand/Makefile.booters: revision 1.95
	sys/arch/i386/stand/bootxx/bootxx_msdos/Makefile: revision 1.5
	sys/arch/i386/stand/Makefile.inc: revision 1.19
	sys/arch/i386/stand/bootxx/bootxx_ustarfs/Makefile: revision 1.4
	sys/arch/i386/stand/dosboot/Makefile: revision 1.34

Fix the clang build by setting -z noseparate-code

Merge the OPT_SIZE flags. -Oz is not always producing smaller code that -Os,
so default to -Os for both, and we'll override where needed.

Override these two booters with -Oz for clang since it produces smaller code
here.

x86/dosboot: Allow NULL dereference to fetch command line arguments
DOS command line arguments are provided as struct psp at 0x0000;
see doscommain.c.

Recent versions of gcc and clang are clever enough to optimize code
block involving NULL dereference into ud2 insn.

Sprinkle -fno-delete-null-pointer-checks to doscommain.c to
prevent this behavior.

Note that dosboot.com for netbsd-9 and later was broken due to
this ``over optimization''. gcc 5.5.0 and clang 4.0.0 in netbsd-8
generate correct codes without this workaround.

XXX
Are there still use cases for dosboot.com? Does anyone want to
boot NetBSD from real-mode DOS in 2023?

x86/dosboot: Do not page-align data segment
4K alignment is too heavy burden for COM executable with 64K limit :)
Fix binary size overflow for clang/amd64.

Merge the OPT_SIZE flags. -Oz is not always producing smaller code that -Os,
so default to -Os for both, and we'll override where needed.

Sync with HEAD

fix duplicated chunk from merge

Merge the [pgoyette-compat] branch

Sync with HEAD

Specify NOLIBCSANITIZER in x86 bootloader-like code under sys/arch/

Set NOLIBCSANITIZER for i386 and amd64 specific bootloader-like code.

Sync with HEAD

- Disable MKSANITIZER
- Redo using NOPIE
- Add NORELRO

gcc-6 needs -nosse

update from HEAD

Sync with HEAD

Sync with HEAD

Remove some manual size tuning that no longer seems to be needed.

Rebase to HEAD as of a few days ago.

Rebase.

sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs.  ("Protocol error: too many arguments")

sync with head

Add -fno-asynchronous-unwind-tables -fno-exceptions to gcc builds.
One of these (probably the first) is needed to stop the eh-frame
section being created.
The eh_frame section is loadable and bloats the boot images.
This might be enough to make pxeboot work.

sync with head

Explicitly disable unwind table generation.

sync with head

sync to latest -current.

-enable-iv-rewrite is neither supported nor needed with LLVM now.
The one case where it was a big win was partially an inliner bug and
the changes to the inline cost estimate are much smaller over all.

merge to -current.

Use new -mstack-alignment option to replace the removed internal option.

Update LLVM/Clang snapshot to r141658. This primarily fixes a regression
preventing Qt4 from building.

Sync with HEAD. Most notably: uvm/pmap work done by rmind@, and MP Xen
work of cherry@.

No regression observed on suspend/restore.

Catchup with rmind-uvmplock merge.

Refactor compiler-specific optimizer flags. Mark bootxx as supported
with clang.

sync with head.

Sync with HEAD.

Sync with HEAD.

Sync with wrstuden-revivesa-base-2.

Wrap compiler-specific flags with HAVE_GCC and HAVE_PCC as necessary. Add a few flags for PCC.

sync with head

sync with head.

Sync with head.

Merge 2006-05-24 NetBSD-current into the "peter-altq" branch.

sync with head.

as mrg@ points out, including <bsd.own.mk> is the proper fix.

deal sanely(?) with when HAVE_GCC is undefined.

add more HAVE_GCC == 4 protection

- -mcpu=i386 is gone in GCC4
- we need -Wno-attributes (to avoid __packed__ warnings)
- use -Wno-pointer-sign
- remove some redundancy from pxeboot/Makefile

Catch up with -current.

Catch up to -current.

Cleanup of i386 bootloader building:
* Add separate directories for the individual netboot ROMs and
  always build them.
* Each bootloader Makefile explicitly specifies the start file
  and link address it wishes to use.
* genprom becomes a proper host program.
* Make sure all generated files get cleaned up.
* Set BINDIR in Makefile.inc
* Add compressed image support to pxeboot.
* Make pxeboot use the default serial console speed (9600).

file Makefile.inc was added on branch kqueue on 2002-03-16 15:58:20 +0000

file Makefile.inc was added on branch nathanw_sa on 2002-02-28 04:10:24 +0000

file Makefile.inc was added on branch sommerfeld_i386mp_1 on 2002-02-17 20:03:07 +0000

Cleanup of i386 bootloader building:
* Add separate directories for the individual netboot ROMs and
  always build them.
* Each bootloader Makefile explicitly specifies the start file
  and link address it wishes to use.
* genprom becomes a proper host program.
* Make sure all generated files get cleaned up.
* Set BINDIR in Makefile.inc
* Add compressed image support to pxeboot.
* Make pxeboot use the default serial console speed (9600).