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authorMichel Thebeau <michel.thebeau@windriver.com>2013-04-10 12:36:47 (GMT)
committerRichard Purdie <richard.purdie@linuxfoundation.org>2013-04-11 08:03:21 (GMT)
commitcd2f003b512adf545dd3e5edd9aad68e09e9cda7 (patch)
treebf3400b03250f4d9ea2f3ee14cf0d188569cbf40 /meta-yocto-bsp
parent4c02dd5f6432c6e683a57d47b610f56433e9ca0d (diff)
downloadpoky-cd2f003b512adf545dd3e5edd9aad68e09e9cda7.tar.gz
kernel.bbclass: do_strip: allow recipes to strip the kernel
Allow recipes to specify sections to be stripped from the kernel output using KERNEL_IMAGE_STRIP_EXTRA_SECTIONS. For example: KERNEL_IMAGE_STRIP_EXTRA_SECTIONS = ".comment .unwanted" The kernel output is stripped in place. Since the toolchain does not give indication when the specified sections are absent, we read the sections first and make this report by issuing a warning to the developer. The toolchain by default strips the image with the -s option (even when -s is not specified): -s --strip-all Remove all symbol and relocation information For example, these sections are always removed: .debug_aranges .debug_info .debug_abbrev .debug_line .debug_frame .debug_str .debug_loc .debug_ranges .symtab .strtab In addition to these, the sections listed in KERNEL_IMAGE_STRIP_EXTRA_SECTIONS will also be removed. Only stripping of vmlinux (elf) is supported at this time. A warning will be given if the image type is not vmlinux. Stripping the image could also be done in the kernel, but that would only work for linux-yocto based kernels, so it's not the route we decided to go. [YOCTO 3515] (From OE-Core rev: 5f6d33b05b4e7883f2728ca812cb5386d1e36989) Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com> Signed-off-by: Michel Thebeau <michel.thebeau@windriver.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta-yocto-bsp')
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