On Fri, Mar 12, 2021 at 02:17:49PM -0800, Manoj Gupta wrote:
> From: Joe Lawrence <joe.lawrence@xxxxxxxxxx>
>
> commit 9c8e2f6d3d361439cc6744a094f1c15681b55269 upstream.
>
> When building with -ffunction-sections, the compiler will place each
> function into its own ELF section, prefixed with ".text". For example,
> a simple test module with functions test_module_do_work() and
> test_module_wq_func():
>
> % objdump --section-headers test_module.o | awk '/\.text/{print $2}'
> .text
> .text.test_module_do_work
> .text.test_module_wq_func
> .init.text
> .exit.text
>
> Adjust the recordmcount scripts to look for ".text" as a section name
> prefix. This will ensure that those functions will be included in the
> __mcount_loc relocations:
>
> % objdump --reloc --section __mcount_loc test_module.o
> OFFSET TYPE VALUE
> 0000000000000000 R_X86_64_64 .text.test_module_do_work
> 0000000000000008 R_X86_64_64 .text.test_module_wq_func
> 0000000000000010 R_X86_64_64 .init.text
>
> Link: http://lkml.kernel.org/r/1542745158-25392-2-git-send-email-joe.lawrence@xxxxxxxxxx
>
> Signed-off-by: Joe Lawrence <joe.lawrence@xxxxxxxxxx>
> Signed-off-by: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx>
>
> [Manoj: Resolve conflict on 4.4.y/4.9.y because of missing 42c269c88dc1]
> Signed-off-by: Manoj Gupta <manojgupta@xxxxxxxxxx>
> ---
>
> Changes v1 -> v2:
> Change "nc" to "Manoj"
Now queued up, thanks.
greg k-h
