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845c09e474
When compiled with -ffunction-sections (e.g., for LTO, livepatch, dead code elimination, AutoFDO, or Propeller), the startup() function gets compiled into the .text.startup section (or in some cases .text.startup.constprop.0 or .text.startup.isra.0). However, the .text.startup and .text.startup.* sections are also used by the compiler for __attribute__((constructor)) code. This naming conflict causes the vmlinux linker script to wrongly place startup() function code in .init.text, which gets freed during boot. Some builds have a mix of objects, both with and without -ffunctions-sections, so it's not possible for the linker script to disambiguate with #ifdef CONFIG_FUNCTION_SECTIONS or similar. This means that "startup" unfortunately needs to be prohibited as a function name. Rename startup() to rs_startup(). For consistency, also rename its shutdown() counterpart to rs_shutdown(). Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://patch.msgid.link/9e56afff5268b0b12b99a8aa9bf244d6ebdcdf47.1763669451.git.jpoimboe@kernel.org |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.