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opnsense-src/sys/arm/include
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Ian Lepore da6da1575b Adjust _ALIGNBYTES to the proper value for arm and armv6 arches. Modern 
compilers can emit arm instructions that require 8-byte alignment.  The
alignment-sensitive instructions were added in armv5, which has to be
supported by our combined v4/v5 kernels, so the value is set uncoditionally
for all arm architecture versions.

Also adjust the comment to explain in more detail why the macros have the
form and values they do.

Per advice from bde@, maintain the unsignedness of the value of _ALIGNBYTES
(but do so using his second choice of allowing sizeof() to supply the
unsignedness, rather than just hardcoding '8U', which in my mind would
require an even more verbose comment to explain why it's right).  Also
explain in the comment that the resulting type of _ALIGN() is equivelent
to uinptr_t on arm (32-bit unsigned int), but it's purposely spelled as
"unsigned" to avoid problems with including other header files.  Even
including machine/_types.h to allow use of __uintptr_t causes compilation
failures because of this header being included (indirectly) in asm code.

The discussion that led to this change (albeit at a glacial pace) is at
https://lists.freebsd.org/pipermail/svn-src-head/2014-November/064593.html
2016-05-21 16:52:38 +00:00
..
_align.h Adjust _ALIGNBYTES to the proper value for arm and armv6 arches. Modern 2016-05-21 16:52:38 +00:00
_bus.h Remove errant % in license comment. 2008-02-26 11:45:32 +00:00
_inttypes.h The NetBSD Foundation has granted permission to remove clauses 3 and 4. 2010-02-16 21:59:17 +00:00
_limits.h Fix types of some values in machine/_limits.h. 2011-01-08 11:13:34 +00:00
_stdint.h ARM: Remove trailing whitespace from sys/arm/include 2015-11-10 12:02:41 +00:00
_types.h We only support the ARM EABI in head, remove the check on __ARM_EABI__. 2015-05-31 10:51:06 +00:00
acle-compat.h From https://sourceware.org/ml/newlib/2014/msg00113.html 2014-08-14 04:20:13 +00:00
armreg.h ARM: Add support for new KRAIT 300 CPU revision. 2015-11-28 12:11:44 +00:00
asm.h Don't repeat the the word 'the' 2016-05-17 12:52:31 +00:00
asmacros.h opt_global.h is included automatically in the build. No need to 2014-11-18 17:06:56 +00:00
at91_gpio.h Add userland access to at91 gpio functionality via ioctl calls. Also, 2013-03-29 19:52:57 +00:00
atags.h ARM: Fix ATAG handling in LINUX_BOOT_API: 2016-03-26 06:57:36 +00:00
atomic-v4.h Implement atomic_cmpset_acq_64 and atomic_cmpset_rel_64 on arm and armeb. 2016-05-18 13:09:52 +00:00
atomic-v6.h ARM: Implement atomic_swap_int(9). It's used in DRM2 code. 2015-11-28 12:12:28 +00:00
atomic.h ARM: Implement atomic_swap_int(9). It's used in DRM2 code. 2015-11-28 12:12:28 +00:00
blockio.h trim trailing whitespace 2012-06-13 05:02:51 +00:00
board.h ARM: Remove trailing whitespace from sys/arm/include 2015-11-10 12:02:41 +00:00
bus.h Limit arm_base_bs_tag to ARMv4 and ARMv5, we only used it in one place in 2015-11-21 13:02:34 +00:00
bus_dma.h Eliminate the last dregs of the old global arm_root_dma_tag. 2015-11-02 22:49:39 +00:00
clock.h First part of a little cleanup in the calendar/timezone/RTC handling. 2006-10-02 12:59:59 +00:00
counter.h Use atomic_load/store_64() in the arm implementation of counter(9), and 2014-08-01 23:06:38 +00:00
cpu-v4.h ARM: Use new ARMv6 naming conventions for cache and TLB functions 2016-02-05 14:57:41 +00:00
cpu-v6.h Add four functions which check a virtual address for stage 1 privileged 2016-04-22 06:26:45 +00:00
cpu.h ARM: Introduce new cpu-v4.h header and move all ARMv4 specific code 2016-02-05 09:46:24 +00:00
cpuconf.h ARM: Remove support for xscale i80219 and i80321 CPUs. We haven't single 2016-02-03 09:15:44 +00:00
cpufunc.h ARM: Use new ARMv6 naming conventions for cache and TLB functions 2016-02-05 14:57:41 +00:00
cpuinfo.h Set the correct values in the arm aux control register, based on chip type. 2015-10-19 19:18:02 +00:00
db_machdep.h Introduce support for HW watchpoints and single stepping for ARMv6/v7 2016-01-25 18:02:28 +00:00
debug_monitor.h SMP support for ARMv6/v7 HW watchpoints 2016-01-28 12:43:58 +00:00
disassem.h ARM: Remove trailing whitespace from sys/arm/include 2015-11-10 12:02:41 +00:00
dump.h Factor out duplicated code from dumpsys() on each architecture into generic 2015-01-07 01:01:39 +00:00
elf.h Export the eflags field from the elf header. This allows better 2015-05-22 20:50:35 +00:00
endian.h ARM: Remove trailing whitespace from sys/arm/include 2015-11-10 12:02:41 +00:00
exec.h
fdt.h Import ARM_INTRNG, the "next generation" interrupt architecture for arm 2015-10-18 18:26:19 +00:00
fiq.h
float.h Rationalize BSD license on sys/*/include/float.h 2015-08-05 17:05:35 +00:00
floatingpoint.h
fp.h VFP fixes/cleanups for ARM11: 2014-03-29 14:35:36 +00:00
frame.h Cleanup up ARM *frame structures... 2014-12-24 18:54:31 +00:00
gdb_machdep.h Add remote GDB bits for arm. 2006-07-14 00:50:51 +00:00
ieee.h On ARM EABI double precision floating point values are stored in the 2013-09-07 14:04:10 +00:00
ieeefp.h People porting FreeBSD to new architectures ought not have to 2011-10-21 06:41:46 +00:00
in_cksum.h Delete stray clause 3 and renumber. 2015-03-13 02:49:55 +00:00
intr.h Rename ARM_INTRNG and MIPS_INTRNG to INTRNG. This will help with machine 2016-04-15 16:05:41 +00:00
kdb.h ARM: Use new ARMv6 naming conventions for cache and TLB functions 2016-02-05 14:57:41 +00:00
limits.h
machdep.h Add a MULTIDELAY option to allow the ARM kernel to have multiple DELAY 2016-04-30 17:27:33 +00:00
md_var.h Add support for usermode (vdso-like) gettimeofday(2) and 2015-12-07 12:20:26 +00:00
memdev.h Add reader/writer lock around mem_range_attr_get() and mem_range_attr_set(). 2011-01-17 22:58:28 +00:00
metadata.h Add support to the efi boot1 and loader for 32-bit ARM. This will be used 2015-04-06 15:50:20 +00:00
minidump.h Add mmu format info into ARM vmcore. 2016-01-15 18:53:06 +00:00
ofw_machdep.h Allow us to be told about memory past the first 4GB point, but ignore it. 2016-01-25 23:04:40 +00:00
param.h Remove hf appending code from param.h for machine arch name. 2016-05-20 19:18:32 +00:00
pcb.h Make PCB structure binary compatible for old and new PMAP on ARM 2015-11-17 13:09:51 +00:00
pcpu.h SMP support for ARMv6/v7 HW watchpoints 2016-01-28 12:43:58 +00:00
physmem.h Allow us to be told about memory past the first 4GB point, but ignore it. 2016-01-25 23:04:40 +00:00
pl310.h Make pl310_print_config static, it's not called out of pl310.c 2015-11-17 11:26:35 +00:00
platform.h When the initarm_* routines were renamed to platform_* and moved to their 2014-08-17 02:56:58 +00:00
platformvar.h Add a MULTIDELAY option to allow the ARM kernel to have multiple DELAY 2016-04-30 17:27:33 +00:00
pmap-v4.h Rename pte.h to pte-v4.h and start including directly either pte-v4.h 2016-02-19 09:23:32 +00:00
pmap-v6.h Remove not used definitions and fix some style nits. 2016-02-19 10:32:17 +00:00
pmap.h Move common definitions from both pmap-v4.h and pmap-v6.h into pmap.h. 2016-02-19 08:41:47 +00:00
pmap_var.h Don't use atomic operations for page table entries and handle access 2016-04-22 06:32:27 +00:00
pmc_mdep.h Rather than defining our own magic checks here use INKERNEL() for 2015-03-27 08:47:16 +00:00
proc.h Add support for branch instruction on armv7 with ptrace single step 2015-11-02 16:56:34 +00:00
profile.h Stop using load-multiple with lr and pc. This has been deprecated in ARMv7 2015-01-31 19:55:12 +00:00
psl.h Fix arm build. 2014-01-06 17:16:27 +00:00
pte-v4.h Rename pte.h to pte-v4.h and start including directly either pte-v4.h 2016-02-19 09:23:32 +00:00
pte-v6.h Remove AP_KRW definition not needed after r295801. 2016-02-19 09:52:11 +00:00
ptrace.h
reg.h SMP support for ARMv6/v7 HW watchpoints 2016-01-28 12:43:58 +00:00
reloc.h
resource.h ARM: Define PCI_RES_BUS resource for platforms having NEW_PCIB enabled. 2015-12-02 14:24:14 +00:00
runq.h
sc_machdep.h Piggyback MIPS changes and add ARM syscons support for devices with 2012-08-25 23:59:31 +00:00
setjmp.h Merge in changes from NetBSD: 2013-06-08 07:16:22 +00:00
sf_buf.h ARM: remove old pmap-v6 code. The new pmap-v6 is mature enough, and 2016-01-29 10:31:54 +00:00
sigframe.h
signal.h Don't use an empty struct. 2013-03-11 10:56:46 +00:00
smp.h Rename ARM_INTRNG and MIPS_INTRNG to INTRNG. This will help with machine 2016-04-15 16:05:41 +00:00
stack.h Allow the ARM unwinder to work through modules. This will be used to add 2015-02-19 12:06:57 +00:00
stdarg.h Use __builtin_va_start instead of __builtin_stdarg_start. GCC4 obsoletes 2006-09-21 01:37:02 +00:00
swi.h
sysarch.h Use __ARM_ARCH to decide when ARM_TP_ADDRESS needs to be set. This fixes 2016-01-16 10:12:50 +00:00
sysreg.h Introduce support for HW watchpoints and single stepping for ARMv6/v7 2016-01-25 18:02:28 +00:00
trap.h Move the check to see if we are tracing a function with the DTrace Function 2015-12-05 09:32:36 +00:00
ucontext.h Remove NetBSD implementation details not relevant to FreeBSD. 2014-05-23 00:21:02 +00:00
undefined.h Remove #include <machine/frame.h> from all the arm code that doesn't 2013-10-27 01:34:10 +00:00
utrap.h
vdso.h Add support for usermode (vdso-like) gettimeofday(2) and 2015-12-07 12:20:26 +00:00
vfp.h Treat synchronous VFP exception just like aynchronous: as an FP exception, 2015-11-01 21:59:56 +00:00
vm.h Include pte-v6.h only where needed. 2016-02-17 12:57:05 +00:00
vmparam.h Move arm's devmap to some generic place, so it can be used 2016-04-26 11:53:37 +00:00