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| author | Al Viro <viro@zeniv.linux.org.uk> | 2020-06-14 00:18:12 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2021-01-06 08:42:49 -0500 |
| commit | 0bb87f051e4282afb5f472807c7244b21cf515c7 (patch) | |
| tree | 89d3c3bbcd1f78a1a22303d79e931c7812abf29b /arch/mips/kernel/Makefile | |
| parent | 2fb33bec053b01e616fab921aab4d4775d374e8f (diff) | |
| download | linux-0bb87f051e4282afb5f472807c7244b21cf515c7.tar.bz2 | |
mips compat: switch to compat_binfmt_elf.c
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>
Diffstat (limited to 'arch/mips/kernel/Makefile')
| -rw-r--r-- | arch/mips/kernel/Makefile | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/mips/kernel/Makefile b/arch/mips/kernel/Makefile index 2a05b923f579..943eaeef73e9 100644 --- a/arch/mips/kernel/Makefile +++ b/arch/mips/kernel/Makefile @@ -80,8 +80,8 @@ obj-$(CONFIG_KPROBES) += kprobes.o obj-$(CONFIG_32BIT) += scall32-o32.o obj-$(CONFIG_64BIT) += scall64-n64.o obj-$(CONFIG_MIPS32_COMPAT) += linux32.o ptrace32.o signal32.o -obj-$(CONFIG_MIPS32_N32) += binfmt_elfn32.o scall64-n32.o signal_n32.o -obj-$(CONFIG_MIPS32_O32) += binfmt_elfo32.o scall64-o32.o signal_o32.o +obj-$(CONFIG_MIPS32_N32) += scall64-n32.o signal_n32.o +obj-$(CONFIG_MIPS32_O32) += scall64-o32.o signal_o32.o obj-$(CONFIG_KGDB) += kgdb.o obj-$(CONFIG_PROC_FS) += proc.o |