June 2017
Intermediate to advanced
478 pages
13h 14m
English
Content preview from Mastering Embedded Linux Programming - Second Edition
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Building perf with Buildroot
Many Buildroot kernel configurations do not include perf_events, so you should begin by checking that your kernel includes the options mentioned in the preceding section.
To cross compile perf, run the Buildroot menuconfig and select the following:
- BR2_LINUX_KERNEL_TOOL_PERF in Kernel | Linux Kernel Tools.
To build packages with debug symbols and install them unstripped on the target, select these two settings:
- BR2_ENABLE_DEBUG in the menu Build options | build packages with debugging symbols.
- BR2_STRIP = none in the menu Build options | strip command for binaries on target.
Then, run make clean, followed by make.
When you have built everything, you will have to copy vmlinux into the target image manually. ...
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