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0bb87f051e
Like amd64, mips has two 32bit ABIs - o32 and n32. Unlike amd64, it does not use compat_binfmt_elf.c for either of those; each of those ABIs has a binfmt handler of its own, both very similar to fs/compat_binfmt_elf.c. And the same technics as we use on amd64 can be used to make fs/compat_binfmt_elf.c handle both. * merge elfo32_check_arch() with elfn32_check_arch(), make that serve as compat_elf_check_arch(). Note that SET_PERSONALITY2() is already the same for all ABI variants - it looks at the elf header to choose the flags to set. * add asm/elfcore-compat.h, using the bigger (n32) variant of elf32_prstatus as compat_elf_prstatus there. * make PRSTATUS_SIZE() and SET_PR_FPVALID() choose the right layout, same as done for amd64. test_thread_flag(TIF_32BIT_REGS) is used as the predicate. Voila - we are rid of binfmt_elf{n,o}32.c; fs/compat_binfmt_elf.c is used, same as for all other ELF-supporting 64bit architectures that need 32bit compat. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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arch | ||
block | ||
certs | ||
crypto | ||
Documentation | ||
drivers | ||
fs | ||
include | ||
init | ||
ipc | ||
kernel | ||
lib | ||
LICENSES | ||
mm | ||
net | ||
samples | ||
scripts | ||
security | ||
sound | ||
tools | ||
usr | ||
virt | ||
.clang-format | ||
.cocciconfig | ||
.get_maintainer.ignore | ||
.gitattributes | ||
.gitignore | ||
.mailmap | ||
COPYING | ||
CREDITS | ||
Kbuild | ||
Kconfig | ||
MAINTAINERS | ||
Makefile | ||
README |
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 Restructured Text 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.