On 27 April 2015 at 09:34, Mike via Digitalmars-d <[email protected]> wrote: > On Monday, 27 April 2015 at 05:22:55 UTC, Timo Sintonen wrote: >> >> On Monday, 27 April 2015 at 05:19:52 UTC, Timo Sintonen wrote: >> >> Oops, I forget to uncomment the m4 options. The correct version is >>> >>> >>> And I replace the whole gcc/config/arm/t-arm-elf with this: >>> MULTILIB_OPTIONS += mcpu=cortex-m0/mcpu=cortex-m3/mcpu=cortex-m4 >>> mfloat-abi=hard mfpu=fpv4-sp-d16 >>> MULTILIB_DIRNAMES += cortex-m0 cortex-m3 cortex-m4 >>> MULTILIB_REQUIRED += mcpu=cortex-m0 >>> MULTILIB_REQUIRED += mcpu=cortex-m3 >>> MULTILIB_REQUIRED += mcpu=cortex-m4 /mfloat-abi=hard /mfpu=fpv4-sp-d16 >>> MULTILIB_EXTRA_OPTS += mthumb > > > The toolchain at https://launchpad.net/gcc-arm-embedded doesn't require this > modification, so I'm wondering if there's another way. My understanding is > that this is unlreated to GDC itself, so we should be able to follow > essentially the same procedure as the embedded C/C++ toolchains, right? > > They have their build scripts included in their source package, so I spent a > little time analyzing their build scripts today, and I see they are using > the following config option: > > "--with-multilib-list=armv6-m,armv7-m,armv7e-m,cortex-m7,armv7-r" > > I'm wondering if that alone will do it. I guess I'll give it a try later > and let you all know what I find. >
>From what I'm reading in config.gcc, ARM does not support --with-multilib-list= *except* for 'default' and 'aprofile'. So Ubuntu/Canonical must be applying local patches to get that working. Iain.
