* [PATCH] config/arch+scripts/build/arch: Add Microblaze architecture support
@ 2012-09-18 2:18 David Holsgrove
2012-09-19 20:26 ` Yann E. MORIN
0 siblings, 1 reply; 3+ messages in thread
From: David Holsgrove @ 2012-09-18 2:18 UTC (permalink / raw)
To: Yann E. Morin; +Cc: crossgcc
# HG changeset patch
# User David Holsgrove <david.holsgrove@xilinx.com>
# Date 1347933988 -36000
# Node ID 79a03dc829edb6188436a2c7cc33ead9e27827c4
# Parent 2858a24a584642e263a920b4214c815c172ed547
config/arch+scripts/build/arch: Add Microblaze architecture support
Add Microblaze architecture support (depends on EXPERIMENTAL)
Signed-off-by: "David Holsgrove" <david.holsgrove@xilinx.com>
diff -r 2858a24a5846 -r 79a03dc829ed config/arch/microblaze.in
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/config/arch/microblaze.in Tue Sep 18 12:06:28 2012 +1000
@@ -0,0 +1,12 @@
+# MicroBlaze specific config options
+
+## depends on EXPERIMENTAL
+##
+## select ARCH_SUPPORT_ARCH
+## select ARCH_FLOAT_SW
+## select ARCH_SUPPORTS_BOTH_ENDIAN
+## select ARCH_DEFAULT_BE
+## select ARCH_DEFAULT_HAS_MMU
+##
+## help The MicroBlaze architecture, as defined by:
+## help http://www.xilinx.com/
diff -r 2858a24a5846 -r 79a03dc829ed scripts/build/arch/microblaze.sh
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/scripts/build/arch/microblaze.sh Tue Sep 18 12:06:28 2012 +1000
@@ -0,0 +1,21 @@
+# Compute microblaze specific values
+
+CT_DoArchTupleValues () {
+ # The architecture part of the tuple:
+ CT_TARGET_ARCH="${CT_ARCH}${target_endian_el}"
+
+ # gcc ./configure flags
+ CT_ARCH_WITH_ARCH=
+ CT_ARCH_WITH_ABI=
+ CT_ARCH_WITH_CPU=
+ CT_ARCH_WITH_TUNE=
+ CT_ARCH_WITH_FPU=
+ CT_ARCH_WITH_FLOAT=
+
+ # CFLAGS
+ case "${CT_ARCH_FLOAT_HW},${CT_ARCH_FLOAT_SW}" in
+ y,) CT_ARCH_FLOAT_CFLAG="-mhard-float" ;;
+ ,y) CT_ARCH_FLOAT_CFLAG="-msoft-float" ;;
+ esac
+
+}
--
For unsubscribe information see http://sourceware.org/lists.html#faq
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH] config/arch+scripts/build/arch: Add Microblaze architecture support
2012-09-18 2:18 [PATCH] config/arch+scripts/build/arch: Add Microblaze architecture support David Holsgrove
@ 2012-09-19 20:26 ` Yann E. MORIN
[not found] ` <CAM=EW8adEvOs=oWHjexD9Md2ymYTRKx3-ux-9bMGumDEbja2+w@mail.gmail.com>
0 siblings, 1 reply; 3+ messages in thread
From: Yann E. MORIN @ 2012-09-19 20:26 UTC (permalink / raw)
To: crossgcc; +Cc: David Holsgrove
David, All,
On Tuesday 18 September 2012 04:16:54 David Holsgrove wrote:
> # HG changeset patch
> # User David Holsgrove <david.holsgrove@xilinx.com>
> # Date 1347933988 -36000
> # Node ID 79a03dc829edb6188436a2c7cc33ead9e27827c4
> # Parent 2858a24a584642e263a920b4214c815c172ed547
> config/arch+scripts/build/arch: Add Microblaze architecture support
Usually, we just specify the component familly, the component name, and
the action being done. As microblaze is still experimental (at least in
CT-NG!), saying so in the commmit log would be good.
In this case, a subject like the following would
be more obvious:
arch/microblaze: add new architecture
> Add Microblaze architecture support (depends on EXPERIMENTAL)
>
> Signed-off-by: "David Holsgrove" <david.holsgrove@xilinx.com>
>
> diff -r 2858a24a5846 -r 79a03dc829ed config/arch/microblaze.in
> --- /dev/null Thu Jan 01 00:00:00 1970 +0000
> +++ b/config/arch/microblaze.in Tue Sep 18 12:06:28 2012 +1000
> @@ -0,0 +1,12 @@
> +# MicroBlaze specific config options
> +
> +## depends on EXPERIMENTAL
> +##
> +## select ARCH_SUPPORT_ARCH
> +## select ARCH_FLOAT_SW
> +## select ARCH_SUPPORTS_BOTH_ENDIAN
> +## select ARCH_DEFAULT_BE
> +## select ARCH_DEFAULT_HAS_MMU
What archs usually do is:
- if the MMU is always available (eg. x86):
select ARCH_USE_MMU
- if the MMU is either available or missing (eg. arm):
select ARCH_SUPPORTS_BOTH_MMU
select ARCH_DEFAULT_HAS_MMU (only if the MMU is 'default')
- if the arch never has an MMU (eg. blackfin), select nothing
AFAICS, microblaze is like ARM: use of the MMU is configurable.
Also, please add to the help entry that upstream projects are not all
up to full support for microblaze, and that support is being added.
If there are out-of-tree public patches and/or alternate repositories,
you may also want to point to them in the help entry, so that interested
parties can use them until support is upstream.
Othwerwise, looks good!
Regards,
Yann E. MORIN.
--
.-----------------.--------------------.------------------.--------------------.
| Yann E. MORIN | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
| +33 662 376 056 | Software Designer | \ / CAMPAIGN | ___ |
| +33 223 225 172 `------------.-------: X AGAINST | \e/ There is no |
| http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL | v conspiracy. |
'------------------------------^-------^------------------^--------------------'
--
For unsubscribe information see http://sourceware.org/lists.html#faq
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2012-09-20 0:18 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-09-18 2:18 [PATCH] config/arch+scripts/build/arch: Add Microblaze architecture support David Holsgrove
2012-09-19 20:26 ` Yann E. MORIN
[not found] ` <CAM=EW8adEvOs=oWHjexD9Md2ymYTRKx3-ux-9bMGumDEbja2+w@mail.gmail.com>
2012-09-20 0:18 ` David Holsgrove
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).