lib/Makefile.inc: Stop gcc.c getting into SMM clang builds

The libgcc runtime workarounds found in gcc.c are not needed for
compiler-rt used by the Clang toolchain. Stop gcc.c from sneaking into
Clang builds while processing boards that use SMM code.

Change-Id: I51e8d517784721d28b4d951bd0bebc8b52682a8e
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/6121
Tested-by: build bot (Jenkins)
Reviewed-by: Idwer Vollering <vidwer@gmail.com>
build: Pass correct disassembly flags in Clang build

On SVR4-derived platforms, the character `/' is treated as a comment
character, which means that it cannot be used in expressions. The
`--divide' option turns `/' into a normal character. This seems to be
needed with our local build of binutils since we don't yet use the
internal assembler/disassembler of the Clang tooling.

Change-Id: I344fc8670fd5d994f3b63308a513dd367aefc7f9
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/5813
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
armv7: We don't use CPPFLAGS anymore

CPPFLAGS is only used as qualified variant
(like CPPFLAGS_armv7) now.

Change-Id: If8b570ace4ac92d1fdb38ca3f7fef6c79d513a95
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/5874
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Dave Frodin <dave.frodin@se-eng.com>
Don't add .eh_frame sections to SMM image

We don't need exception handlers and they waste space.

Change-Id: I98a34d1c9638e8c4168edbfb4b1cddde8a64623f
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/6105
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
cpu/amd/geode_gx2/cache_as_ram.inc: Remove illegal ASCII art

Embedding comments inside comments is illegal in the C specification,
Clang enforces this.

Change-Id: I0a468e4196034b00dfc5860fdbbab7788e4fef77
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/6154
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
utils/cbfstool: No need to pass -g flag twice

Spotted by building with Clang.

Change-Id: I7ab97278d8bd586a71e453c8cc9d26dd6938c8d2
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/6139
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Idwer Vollering <vidwer@gmail.com>
arch/x86/include/bootblock_common.h: Sanitize header inclusion

Sanitize the inclusion of mc146818rtc.h in bootblock_common.h

Change-Id: I37d9ffd1375aedbf1f3eaa4ddce27e16166ce0b9
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/6119
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
include/pc80/mc146818rtc.h: Inconsequential, comment ifdef maze

Change-Id: Ie1ec8dbcdbbe0f2b05fdb10b1dca43cfee2a58cb
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/6120
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
build: remove -ccopts mechanism

We now use the slightly more familiar CFLAGS_* and CPPFLAGS_*
for the same purpose.

Change-Id: Ifd2bd13f67f71fa0a15611a6d11a6a4c7994271b
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/5875
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
AMD boards: Fix comment style and typos

Change-Id: Id630cc46b79a39e1786d42adbc21f3b9c3a051aa
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/6118
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
cpu/x86/pae/pgtbl.c: Unsigned comparison < 0 always false

Comparison of unsigned expression < 0 is always false.

Change-Id: Idf4e7846b50f4376a5d33515681efbd773d1caca
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/6146
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
northbridge/amd: Remove some extraneous parentheses from if-statements

Spotted by Clang.

Change-Id: I38832da7b93d4ee18b8de3e80dc39513a8910221
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/6149
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
southbridge/intel/ibexpeak/me.c: Silence warns about unused func

Move some __SMM__ functions under the #if preprocessor condition to
avoid warnings about unused functions.

Change-Id: I7f6fbc6a577032bc4e4635d91e8e94aecb517bd3
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/6127
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
drivers/pc80/mc146818rtc_early.c: Silence unused func complaints

Clang complains these functions are unused since they find their way
into the bootblock of ROMCC boards by #including the .c file. These
static inlines should probably be moved into a header in reality.

Change-Id: I9d82a6befb0ac99afab6265f9d3649e419f2887d
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/6122
Tested-by: build bot (Jenkins)
Reviewed-by: David Hendricks <dhendrix@chromium.org>
northbridge/amd/gx2/raminit.c Halt func needs noreturn attrib

Missing "__attribute__((noreturn))" on halt function. This sync's the
implementation to be the same as that of amd/lx thereby avoiding
compiler warnings.

Change-Id: Iead16125805eb36ff875fba767cf8d4e5aa86715
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/6157
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Makefile: HOSTCC set too late in clang builds

Currently we set HOSTCC=clang a little late meaning some minor bits
(utils/kconfig) are built with GCC. Move the assignment up the Makefile.

Change-Id: Ic72ad808eba0c0bf508bde34fb9bf0390c0b1d4d
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/6140
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Idwer Vollering <vidwer@gmail.com>
Makefile.inc: Detect if a working clang binary exists before set

Let us not assume the 'clang' binary exists and is working just because
the user selected it in .config

Change-Id: Iad3cbf4a7cda0e1c4d435fbe426b7247233973ea
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/6141
Tested-by: build bot (Jenkins)
Reviewed-by: Idwer Vollering <vidwer@gmail.com>
Use MTRR defines

Change-Id: I60ae6dcb8c3b280fe74f27f4d61de70cc1ba190b
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/6123
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
x86 MTRR: Drop unused return value

It was never well-defined what value this function should return.

Change-Id: If84aff86e0b556591d7ad557842910a2dfcd3b46
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/6166
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
northbridge/amd/{gx2,lx}: Qualify pointer with `volatile`

There is no guarantee reading a dereferenced null pointer will not be
optimised away. Qualify the integer storage type with volatile. Clang
enforces this explicitness.

Change-Id: I31524141d70632cade0490c820936a3a8b570346
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/6148
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>