src/sys/boot/pc98, branch release/9.3.0

MFC r260949:

2014-02-07T04:10:30Z

Make comconsole options set before its activation to be remembered.

MFC r251223 (by nyan):

2014-01-18T22:59:10Z

Always update the hw.uart.console hint.

MFC r260334:

2014-01-09T23:08:56Z

Split the last gcc-specific flags off into CFLAGS.gcc. This also removes the need to use -Qunused-arguments for clang throughout the tree. MFC r260369: Apply band-aid for 32-bit compat libs failures after r260334: put back -Qunused-arguments for clang for now, until I can figure out a way to make it unneeded in all scenarios. Sorry about the breakage.

MFC r260095:

2014-01-04T22:00:07Z

For sys/boot/i386 and sys/boot/pc98, separate flags to be passed directly to the linker (LD_FLAGS) from flags passed indirectly, via the compiler driver (LDFLAGS). This is because several Makefiles under sys/boot/i386 and sys/boot/pc98 use ${LD} directly to link, and the normal LDFLAGS value should not be used in these cases.

MFC r257532 (by adrian):

2013-12-30T20:15:46Z

Fix this build for clang. MFC r259730: To avoid having to explicitly test COMPILER_TYPE for setting clang-specific or gcc-specific flags, introduce the following new variables for use in Makefiles: CFLAGS.clang CFLAGS.gcc CXXFLAGS.clang CXXFLAGS.gcc In bsd.sys.mk, these get appended to the regular CFLAGS or CXXFLAGS for the right compiler. MFC r259913: For libstand and sys/boot, split off gcc-only flags into CFLAGS.gcc. MFC r259927: Fix pc98 build, by also forcing COMPILER_TYPE in sys/boot/pc98/boot2's Makefile. Pointy hat to: dim

MFC r242688: Hook in new files menusets.4th and manual.

2013-08-09T14:17:47Z

MFC 250333: Don't pad disk partition sizes with leading zeros.

2013-06-21T15:17:44Z

MFC r249846:

2013-05-01T18:06:53Z

When rebooting (exiting) from the BTX loader, make sure to restore the GDT from the correct segment, otherwise a triple fault would be caused. In some virtual environments (VMware, VirtualBox, etc) this could lead to a unhandled error or hang in the guest emulation software. Thanks to avg and jhb for a few hints in the right direction. Noticed by: Jeremy Chadwick (and many others)

MFC: r239063, r239064, r239069, r240852, r240854

2012-11-23T13:35:17Z

- boot2: bunch of variables are turned into uint8_t. - boot2: Remove unnecessary initializations. - loader: replace ugly inb/outb re-implementations with cpufunc.h. - Reduce diffs against i386.

MFC: r242855, r242865

2012-11-23T13:17:18Z

- use -march=i386 for both i386 and amd64 builds. - cosmetic changes to reduce diffs against i386.