Re: [U-Boot] [U-Boot,12/12] lib: Enable private libgcc by default
> The toolchain can usually > generate code for many variants of target architecture and often even > different endianness. The libgcc on the other hand is usually compiled > for one particular configuration and the functions provided by it may > or may not be suited for use in U-Boot. I agree with this change but is this even true? my toolchain(linaro) has 28 different versions of libgcc.a Thanks Michael On Mon, Jun 6, 2016 at 7:35 PM, Simon Glass wrote: > On 4 June 2016 at 02:00, Tom Rini wrote: > > On Thu, May 26, 2016 at 06:01:47PM +0200, Marek Vasut wrote: > > > >> This patch decouples U-Boot binary from the toolchain on systems where > >> private libgcc is available. Instead of pulling in functions provided > >> by the libgcc from the toolchain, U-Boot will use it's own set of libgcc > >> functions. These functions are usually imported from Linux kernel, which > >> also uses it's own libgcc functions instead of the ones provided by the > >> toolchain. > >> > >> This patch solves a rather common problem. The toolchain can usually > >> generate code for many variants of target architecture and often even > >> different endianness. The libgcc on the other hand is usually compiled > >> for one particular configuration and the functions provided by it may > >> or may not be suited for use in U-Boot. This can manifest in two ways, > >> either the U-Boot fails to compile altogether and linker will complain > >> or, in the much worse case, the resulting U-Boot will build, but will > >> misbehave in very subtle and hard to debug ways. > >> > >> Signed-off-by: Marek Vasut > >> Cc: Albert Aribaud > >> Cc: Masahiro Yamada > >> Cc: Simon Glass > >> Cc: Tom Rini > >> Reviewed-by: Tom Rini > > > > Applied to u-boot/master, thanks! > > > > And since this change was contentious when previously proposed, I'm > > going to explain why I'm taking this now. There are a number of > > correctly configured toolchains out there today that fail to build > > U-Boot on some platforms. This is because we're giving the compiler > > conflicting requests (build soft-float! use whatever libgcc you have!). > > The era of multilib toolchains being prevalent (at least for 32bit ARM) > > is long over. The right thing to have done, always, would be to provide > > the required functions ourselves so that we are in control. So, thanks > > again Marek for following up on the series as I had asked you to, this > > fixes build failures for me on about a dozen platforms. > > Thank you Marek! > > - Simon > ___ > U-Boot mailing list > U-Boot@lists.denx.de > http://lists.denx.de/mailman/listinfo/u-boot > ___ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
Re: [U-Boot] where is malloc()?
depending on your config it's either in common/malloc_simple.c (#define malloc malloc_simple) or in common/dlmalloc.c (Void_t* mALLOc(size_t bytes) and # define mALLOc malloc). Michael On Fri, Feb 19, 2016 at 2:52 AM, quantumlight wrote: > I can find malloc.h describing that it uses a specific malloc. But I can't > seem to find where the u-boot source keeps the malloc implementation. > > I see that in include/_exports.h it is defined: > >EXPORT_FUNC(malloc) > > Also there seems to be a dlmalloc.c that should define a void* malloc(size) > function but I can't seem to find it in here. Is there some macro magic > here? > > > > > -- > View this message in context: > http://u-boot.10912.n7.nabble.com/where-is-malloc-tp246389.html > Sent from the U-Boot mailing list archive at Nabble.com. > ___ > U-Boot mailing list > U-Boot@lists.denx.de > http://lists.denx.de/mailman/listinfo/u-boot > ___ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
Re: [U-Boot] How to boot bare board binary from U-Boot>
so you just want to boot a raw binary which is not a kernel and doesn't use the U-Boot API? Actually, this shouldn't change anything. Linux isn't anything more than a "self-contained" raw binary either. I don't see why bootm wouldn't work in you situation. Michael On Sun, Feb 14, 2016 at 8:24 PM, veerendranathj wrote: > thanks for the reply... I am aware of these options. Here problem is when I > use go command my program has to use U-Boot service functions(I mean > standalone binaries will run in U-Boot environment)... But I want to take > complete control from U-Boot as my binary is self-contained binary like > kernel...But I can't boot using bootm or any other boot commands provided > by > U-Boot as my binary is not in kernel format.. Please let me know if you > have any idea how accomplish it with out customizing the U-Boot... > > > > -- > View this message in context: > http://u-boot.10912.n7.nabble.com/How-to-boot-bare-board-binary-from-U-Boot-tp245739p245851.html > Sent from the U-Boot mailing list archive at Nabble.com. > ___ > U-Boot mailing list > U-Boot@lists.denx.de > http://lists.denx.de/mailman/listinfo/u-boot > ___ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
Re: [U-Boot] How to boot bare board binary from U-Boot>
Hi you can either run the binary directly from memory or you can build a uboot image from your raw binary using the mkimage command. Michael On Fri, Feb 12, 2016 at 10:32 AM, veerendranathj wrote: > Hello, > > How can we boot independent bare board binary(not standalone binary which > runs using U-Boot environment and not linux kernel) from U-Boot. My > requirement is to reinitialize the board and drivers using my binary... > > I can replace the U-Boot in the boot medium(here NOR Flash) with my binary > but my requirement is to not removing the U-boot from NOR flash and I > should > load my binary from LAN network using "tftp" command. > > Thanks and Regards, > Veerendranath > > > > -- > View this message in context: > http://u-boot.10912.n7.nabble.com/How-to-boot-bare-board-binary-from-U-Boot-tp245739.html > Sent from the U-Boot mailing list archive at Nabble.com. > ___ > U-Boot mailing list > U-Boot@lists.denx.de > http://lists.denx.de/mailman/listinfo/u-boot > ___ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
