On 28 January 2016 at 22:20, Jim Wilson <jim.wil...@linaro.org> wrote: > This is a minor arm port bug. Use both -mlong-calls and -pg and you get > bl __gnu_mcount_nc > instead of the long call to mcount that I expected. The MIPS port > does get this right, and uses a longcall for mcount if longcalls are > enabled.
Hi Jim, We have this bug in LLVM: https://llvm.org/bugs/show_bug.cgi?id=23969 Which deals with the problems of mcount messing up the prologue, and it seems to affect both kernel and chromium. I was delaying the decision to move to __gnu_mcount_nc on ARM unconditionally, but if GCC requires the -mlong-calls option, then I think we could make it work very easily. Is this in line of what you were suggesting, or am I crossing the wires here? cheers, --renato _______________________________________________ linaro-toolchain mailing list linaro-toolchain@lists.linaro.org https://lists.linaro.org/mailman/listinfo/linaro-toolchain
