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| author |   Al Viro <viro@zeniv.linux.org.uk> | 2020-06-13 23:03:25 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2021-01-06 08:40:56 -0500 |
| commit | 7facdc426f86c67e579e49e100943cbccc43e1c6 (patch) | |
| tree | a0876eb192b15ff1a05e0560048f0306c1ccfd3b /arch/Kconfig | |
| parent | elf_prstatus: collect the common part (everything before pr_reg) into a struct (diff) | |
| download | linux-dev-7facdc426f86c67e579e49e100943cbccc43e1c6.tar.xz linux-dev-7facdc426f86c67e579e49e100943cbccc43e1c6.zip | |
[amd64] clean PRSTATUS_SIZE/SET_PR_FPVALID up properly
To get rid of hardcoded size/offset in those macros we need to have
a definition of i386 variant of struct elf_prstatus. However, we can't
do that in asm/compat.h - the types needed for that are not there and
adding an include of asm/user32.h into asm/compat.h would cause a lot
of mess.
That could be conveniently done in elfcore-compat.h, but currently there
is nowhere to put arch-dependent parts of it - no asm/elfcore-compat.h.
So we introduce a new file (asm/elfcore-compat.h, present on architectures
that have CONFIG_ARCH_HAS_ELFCORE_COMPAT set, currently only on x86),
have it pulled by linux/elfcore-compat.h and move the definitions there.
As a side benefit, we don't need to worry about accidental inclusion of
that file into binfmt_elf.c itself, so we don't need the dance with
COMPAT_PRSTATUS_SIZE, etc. - only fs/compat_binfmt_elf.c will see
that header.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/Kconfig')
| -rw-r--r-- | arch/Kconfig | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/Kconfig b/arch/Kconfig index 78c6f05b10f9..a17ced73b23c 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -1105,6 +1105,9 @@ config HAVE_ARCH_PFN_VALID config ARCH_SUPPORTS_DEBUG_PAGEALLOC bool +config ARCH_HAS_ELFCORE_COMPAT + bool + source "kernel/gcov/Kconfig" source "scripts/gcc-plugins/Kconfig" |