Can someone point me to bare metal example using GNU toolchain. Regds Rks
On Mar 8, 2012, at 10:51 AM, "William Mills" <wmi...@ti.com> wrote: > All, > > I need to supply a Linaro toolchain "aligned" (same source code) > bare-metal compiler to a group doing benchmarking on A15. > > First off my assumption is that we will write our own boot and semi > hosting code. (semi-hosting for TI emulators/simulators is different > than ARM RDI semi-hosting.) > > I was planning on looking at the two toolchains here[1] and here [2]: > [1] https://launchpad.net/linaro-toolchain-binaries > [2] https://launchpad.net/gcc-arm-embedded > > I was then going to build a hybrid that was newlib based but appropriate > for armv7-a (instead of cortext-m3) and maybe even -mtune'ed for A15. > > However looking at the gcc-arm-embedded release more[3] I see that it > supports ARMv7-R. It supports both thumb and non-thumb modes, both > softfp and hardfp ABIs. > > What would I really gain by building my own? For app code the user > should be able to add -mtune=cortex-a15 and still be compatible with the > pre-built R4/R5 libraries. The only performance difference should be in > the library code and that should be only pipeline tuning if I understand > the difference between armv7-a and armv7-r correctly. > > Am I missing something? Should I build my hybrid anyway? > > [1] https://launchpadlibrarian.net/88152755/readme.txt > > [BTW: has the below project been obsoleted by the gcc-arm-embedded one? > Perhaps gcc-arm-embedded should be referenced in the description of > the page below. > https://launchpad.net/linaro-toolchain-unsupported ] > > Thanks, > Bill > > _______________________________________________ > linaro-toolchain mailing list > linaro-toolchain@lists.linaro.org > http://lists.linaro.org/mailman/listinfo/linaro-toolchain _______________________________________________ linaro-toolchain mailing list linaro-toolchain@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-toolchain
