As far as Akaros perf, I will append a new commit there. I needed the kernel size also, in theory, but then it's like the dog biting his tail 😀 I don't know it until I am creating it. But, I don't really need that. Linux perf wants to know which ELF to use to look for symbols at a given address, and I can assume from the kernel load address, up-a-while, only the kernel ELF is there. So I can just pass a relatively big number as size, and be done with it.
On Mon, Dec 14, 2015 at 8:28 PM, Davide Libenzi <[email protected]> wrote: > The new machinery create an info file like: > > KernelPath: > /usr/local/google/home/src/akaros/akaros/obj/kern/akaros-kernel-64b > Date: Mon Dec 14 20:21:26 PST 2015 > Host: dlibenzi.mtv.corp.google.com > CommitID: 769cc0c093f9c9b9f41c6387d0272e317e0e62c3 > > And stick it into the kernel ELF file. > The new device reads the information out into separate files (path, date, > host, commit). > This branch is based upon the devarch_msr_perf one. > > > > https://github.com/dlibenzi/akaros/compare/devarch_msr_perf...dlibenzi:build_info > > > The following changes since commit > b1e8b1a61a4e0493ef3605910477459fe30eaa43: > > Move Linux perf format conversion into perf tool, drop kprof2perf > (2015-12-14 14:27:06 -0800) > > are available in the git repository at: > > [email protected]:dlibenzi/akaros build_info > > for you to fetch changes up to 25c241765f4395cd9ff910688c5f4afc91b8c2d1: > > Added #version device (2015-12-14 20:23:39 -0800) > > ---------------------------------------------------------------- > Davide Libenzi (3): > Added makefile machinary to generate a build info ELF section > Added memstr() API to allow to search strings in memory > Added #version device > > Makefile | 39 +++++++---- > kern/drivers/dev/Kbuild | 1 + > kern/drivers/dev/version.c | 157 > +++++++++++++++++++++++++++++++++++++++++++++ > kern/include/string.h | 1 + > kern/src/strstr.c | 19 ++++++ > 5 files changed, 203 insertions(+), 14 deletions(-) > create mode 100644 kern/drivers/dev/version.c > > -- You received this message because you are subscribed to the Google Groups "Akaros" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. For more options, visit https://groups.google.com/d/optout.
