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| author | Daniel Axtens <dja@axtens.net> | 2016-09-06 07:32:42 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-09-13 09:36:01 +0200 |
| commit | d8bced27be25537bde3714cbdb34ccece81f6a0d (patch) | |
| tree | 8af76b0e99556211d7f04253221125844deb44a1 /arch/powerpc/kernel/fadump.c | |
| parent | powerpc/sparse: Make a bunch of things static (diff) | |
| download | linux-d8bced27be25537bde3714cbdb34ccece81f6a0d.tar.xz linux-d8bced27be25537bde3714cbdb34ccece81f6a0d.zip | |
powerpc/fadump: Set core e_flags using kernel's ELF ABI version
Firmware Assisted Dump is a facility to dump kernel core with assistance
from firmware. As part of this process the kernel ELF ABI version is
stored in the core file.
Currently fadump.h defines this to 0 if it is not already defined. This
clashes with a define in elf.h which sets it based on the current task -
not based on the kernel's ELF ABI version.
Use the compiler-provided #define _CALL_ELF which tells us the ELF ABI
version of the kernel to set e_flags, this matches what binutils does.
Remove the definition in fadump.h, which becomes unused.
Signed-off-by: Daniel Axtens <dja@axtens.net>
Reviewed-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to '')
| -rw-r--r-- | arch/powerpc/kernel/fadump.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/fadump.c b/arch/powerpc/kernel/fadump.c index b3a663333d36..624ddcf728e0 100644 --- a/arch/powerpc/kernel/fadump.c +++ b/arch/powerpc/kernel/fadump.c @@ -778,7 +778,11 @@ static int fadump_init_elfcore_header(char *bufp) elf->e_entry = 0; elf->e_phoff = sizeof(struct elfhdr); elf->e_shoff = 0; - elf->e_flags = ELF_CORE_EFLAGS; +#if defined(_CALL_ELF) + elf->e_flags = _CALL_ELF; +#else + elf->e_flags = 0; +#endif elf->e_ehsize = sizeof(struct elfhdr); elf->e_phentsize = sizeof(struct elf_phdr); elf->e_phnum = 0; |