From: Francesco Lavra <francescolavra.fl@gmail.com>
To: grub-devel@gnu.org
Subject: Re: [PATCH 1/7] ARM/U-Boot basic build system additions
Date: Sat, 30 Mar 2013 16:09:28 +0100 [thread overview]
Message-ID: <51570028.8090202@gmail.com> (raw)
In-Reply-To: <CAF7UmSxYa_oLCHHUic9hFBDZoB4MMgaJAhBvHnCaxwur5dJGrw@mail.gmail.com>
Hi,
On 03/24/2013 06:01 PM, Leif Lindholm wrote:
> === modified file 'conf/Makefile.common'
> --- conf/Makefile.common 2013-03-03 14:57:30 +0000
> +++ conf/Makefile.common 2013-03-24 11:00:29 +0000
> @@ -37,6 +37,13 @@
> CFLAGS_PLATFORM += -mno-app-regs
> LDFLAGS_PLATFORM = -Wl,-melf64_sparc -mno-relax
> endif
> +if COND_arm
> +# Image entry point always in ARM (A32) state - ensure proper functionality if
> +# the rest is built for the Thumb (T32) state.
> + CFLAGS_PLATFORM += -mthumb-interwork -mno-unaligned-access -mlong-calls
> + CCASFLAGS_PLATFORM = -Wa,-mimplicit-it=thumb
The -mimplicit-it=thumb assembler option is generally frowned upon and
is used mostly to convert existing pieces of code from ARM to Thumb
encoding.
Since you are writing new code, it's better to avoid this option and
manually insert IT instructions in the assembly where appropriate.
> + LDFLAGS_PLATFORM = -Wl,--wrap=__clear_cache
> +endif
>
> # Other options
>
--Francesco
next prev parent reply other threads:[~2013-03-30 15:09 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-24 17:01 [PATCH 1/7] ARM/U-Boot basic build system additions Leif Lindholm
2013-03-30 15:09 ` Francesco Lavra [this message]
2013-04-03 14:41 ` Leif Lindholm
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