On 02/26/16 at 06:03pm, Anton Blanchard wrote: > On PowerPC64 ABIv2 we need to look at the symbol to determine > if it has a local entry point. Pass struct mem_sym into > machine_apply_elf_rel() so we can. > > Signed-off-by: Anton Blanchard <anton at samba.org> > --- > kexec/arch/arm/kexec-elf-rel-arm.c | 5 +++-- > kexec/arch/cris/kexec-elf-rel-cris.c | 5 +++-- > kexec/arch/i386/kexec-elf-rel-x86.c | 5 +++-- > kexec/arch/ia64/kexec-elf-rel-ia64.c | 5 +++-- > kexec/arch/m68k/kexec-elf-rel-m68k.c | 4 +++- > kexec/arch/mips/kexec-elf-rel-mips.c | 4 +++- > kexec/arch/ppc/kexec-elf-rel-ppc.c | 5 +++-- > kexec/arch/ppc64/kexec-elf-rel-ppc64.c | 5 +++-- > kexec/arch/s390/kexec-elf-rel-s390.c | 3 ++- > kexec/arch/sh/kexec-elf-rel-sh.c | 5 +++-- > kexec/arch/x86_64/kexec-elf-rel-x86_64.c | 5 +++-- > kexec/kexec-elf-rel.c | 2 +- > kexec/kexec-elf.h | 5 +++-- > 13 files changed, 36 insertions(+), 22 deletions(-) > > diff --git a/kexec/arch/arm/kexec-elf-rel-arm.c b/kexec/arch/arm/kexec-elf-rel-arm.c > index 214f0cc..a939cf4 100644 > --- a/kexec/arch/arm/kexec-elf-rel-arm.c > +++ b/kexec/arch/arm/kexec-elf-rel-arm.c > @@ -18,8 +18,9 @@ int machine_verify_elf_rel(struct mem_ehdr *ehdr) > return 1; > } > > -void machine_apply_elf_rel(struct mem_ehdr *UNUSED(ehdr), unsigned long r_type, > - void *location, unsigned long address, unsigned long value) > +void machine_apply_elf_rel(struct mem_ehdr *UNUSED(ehdr), > + struct mem_sym *UNUSED(sym), unsigned long r_type, void *location, > + unsigned long address, unsigned long value) > { > switch(r_type) { > case R_ARM_ABS32: > diff --git a/kexec/arch/cris/kexec-elf-rel-cris.c b/kexec/arch/cris/kexec-elf-rel-cris.c > index c4427cc..255cc2c 100644 > --- a/kexec/arch/cris/kexec-elf-rel-cris.c > +++ b/kexec/arch/cris/kexec-elf-rel-cris.c > @@ -29,8 +29,9 @@ int machine_verify_elf_rel(struct mem_ehdr *ehdr) > return 1; > } > > -void machine_apply_elf_rel(struct mem_ehdr *ehdr, unsigned long r_type, > - void *location, unsigned long address, unsigned long value) > +void machine_apply_elf_rel(struct mem_ehdr *UNUSED(ehdr), > + struct mem_sym *UNUSED(sym), unsigned long r_type, void *location, > + unsigned long address, unsigned long value) > { > switch(r_type) { > > diff --git a/kexec/arch/i386/kexec-elf-rel-x86.c b/kexec/arch/i386/kexec-elf-rel-x86.c > index fdc3d52..55a214e 100644 > --- a/kexec/arch/i386/kexec-elf-rel-x86.c > +++ b/kexec/arch/i386/kexec-elf-rel-x86.c > @@ -18,8 +18,9 @@ int machine_verify_elf_rel(struct mem_ehdr *ehdr) > return 1; > } > > -void machine_apply_elf_rel(struct mem_ehdr *UNUSED(ehdr), unsigned long r_type, > - void *location, unsigned long address, unsigned long value) > +void machine_apply_elf_rel(struct mem_ehdr *UNUSED(ehdr), > + struct mem_sym *UNUSED(sym), unsigned long r_type, void *location, > + unsigned long address, unsigned long value) > { > switch(r_type) { > case R_386_32: > diff --git a/kexec/arch/ia64/kexec-elf-rel-ia64.c b/kexec/arch/ia64/kexec-elf-rel-ia64.c > index cfb1061..f847626 100644 > --- a/kexec/arch/ia64/kexec-elf-rel-ia64.c > +++ b/kexec/arch/ia64/kexec-elf-rel-ia64.c > @@ -72,8 +72,9 @@ bundle (const uint64_t insn) > return insn & ~0xfUL; > } > > -void machine_apply_elf_rel(struct mem_ehdr *ehdr, unsigned long r_type, > - void *location, unsigned long address, unsigned long value) > +void machine_apply_elf_rel(struct mem_ehdr *UNUSED(ehdr), > + struct mem_sym *UNUSED(sym), unsigned long r_type, void *location, > + unsigned long address, unsigned long value) > { > uint64_t gp_value = ehdr->rel_addr + 0x200000; > switch(r_type) { > diff --git a/kexec/arch/m68k/kexec-elf-rel-m68k.c b/kexec/arch/m68k/kexec-elf-rel-m68k.c > index fa12a16..0cc38cc 100644 > --- a/kexec/arch/m68k/kexec-elf-rel-m68k.c > +++ b/kexec/arch/m68k/kexec-elf-rel-m68k.c > @@ -23,7 +23,9 @@ int machine_verify_elf_rel(struct mem_ehdr *ehdr) > return 1; > } > > -void machine_apply_elf_rel(struct mem_ehdr *UNUSED(ehdr), unsigned long r_type, > +void machine_apply_elf_rel(struct mem_ehdr *UNUSED(ehdr), > + struct mem_sym *UNUSED(sym), > + unsigned long r_type, > void *UNUSED(location), > unsigned long UNUSED(address), > unsigned long UNUSED(value)) > diff --git a/kexec/arch/mips/kexec-elf-rel-mips.c b/kexec/arch/mips/kexec-elf-rel-mips.c > index 6f43639..5bc22d5 100644 > --- a/kexec/arch/mips/kexec-elf-rel-mips.c > +++ b/kexec/arch/mips/kexec-elf-rel-mips.c > @@ -29,7 +29,9 @@ int machine_verify_elf_rel(struct mem_ehdr *ehdr) > return 1; > } > > -void machine_apply_elf_rel(struct mem_ehdr *UNUSED(ehdr), unsigned long r_type, > +void machine_apply_elf_rel(struct mem_ehdr *UNUSED(ehdr), > + struct mem_sym *UNUSED(sym), > + unsigned long r_type, > void *UNUSED(location), > unsigned long UNUSED(address), > unsigned long UNUSED(value)) > diff --git a/kexec/arch/ppc/kexec-elf-rel-ppc.c b/kexec/arch/ppc/kexec-elf-rel-ppc.c > index 90a66f4..1acbd86 100644 > --- a/kexec/arch/ppc/kexec-elf-rel-ppc.c > +++ b/kexec/arch/ppc/kexec-elf-rel-ppc.c > @@ -17,8 +17,9 @@ int machine_verify_elf_rel(struct mem_ehdr *ehdr) > return 1; > } > > -void machine_apply_elf_rel(struct mem_ehdr *UNUSED(ehdr), unsigned long r_type, > - void *location, unsigned long address, unsigned long value) > +void machine_apply_elf_rel(struct mem_ehdr *UNUSED(ehdr), > + struct mem_sym *UNUSED(sym), unsigned long r_type, void *location, > + unsigned long address, unsigned long value) > { > switch(r_type) { > case R_PPC_ADDR32: > diff --git a/kexec/arch/ppc64/kexec-elf-rel-ppc64.c b/kexec/arch/ppc64/kexec-elf-rel-ppc64.c > index 9b191d0..8604c4f 100644 > --- a/kexec/arch/ppc64/kexec-elf-rel-ppc64.c > +++ b/kexec/arch/ppc64/kexec-elf-rel-ppc64.c > @@ -63,8 +63,9 @@ static void do_relative_toc(unsigned long value, uint16_t *location, > *location = (*location & ~mask) | (value & mask); > } > > -void machine_apply_elf_rel(struct mem_ehdr *ehdr, unsigned long r_type, > - void *location, unsigned long address, unsigned long value) > +void machine_apply_elf_rel(struct mem_ehdr *ehdr, struct mem_sym *sym, > + unsigned long r_type, void *location, unsigned long address, > + unsigned long value) > { > switch(r_type) { > case R_PPC64_ADDR32: > diff --git a/kexec/arch/s390/kexec-elf-rel-s390.c b/kexec/arch/s390/kexec-elf-rel-s390.c > index 80bcd1b..a5e1b73 100644 > --- a/kexec/arch/s390/kexec-elf-rel-s390.c > +++ b/kexec/arch/s390/kexec-elf-rel-s390.c > @@ -23,7 +23,8 @@ int machine_verify_elf_rel(struct mem_ehdr *ehdr) > return 1; > } > > -void machine_apply_elf_rel(struct mem_ehdr *ehdr, > +void machine_apply_elf_rel(struct mem_ehdr *UNUSED(ehdr), > + struct mem_sym *UNUSED(sym), > unsigned long r_type, > void *loc, > unsigned long address, > diff --git a/kexec/arch/sh/kexec-elf-rel-sh.c b/kexec/arch/sh/kexec-elf-rel-sh.c > index 0bfc45e..3993ee8 100644 > --- a/kexec/arch/sh/kexec-elf-rel-sh.c > +++ b/kexec/arch/sh/kexec-elf-rel-sh.c > @@ -28,8 +28,9 @@ int machine_verify_elf_rel(struct mem_ehdr *ehdr) > return 1; > } > > -void machine_apply_elf_rel(struct mem_ehdr *UNUSED(ehdr), unsigned long r_type, > - void *orig_loc, unsigned long UNUSED(address), unsigned long relocation) > +void machine_apply_elf_rel(struct mem_ehdr *UNUSED(ehdr), > + struct mem_sym *UNUSED(sym), unsigned long r_type, void *orig_loc, > + unsigned long UNUSED(address), unsigned long relocation) > { > uint32_t *location = orig_loc; > uint32_t value; > diff --git a/kexec/arch/x86_64/kexec-elf-rel-x86_64.c b/kexec/arch/x86_64/kexec-elf-rel-x86_64.c > index c795037..7fdde73 100644 > --- a/kexec/arch/x86_64/kexec-elf-rel-x86_64.c > +++ b/kexec/arch/x86_64/kexec-elf-rel-x86_64.c > @@ -57,8 +57,9 @@ static const char *reloc_name(unsigned long r_type) > return name; > } > > -void machine_apply_elf_rel(struct mem_ehdr *UNUSED(ehdr), unsigned long r_type, > - void *location, unsigned long address, unsigned long value) > +void machine_apply_elf_rel(struct mem_ehdr *UNUSED(ehdr), > + struct mem_sym *UNUSED(sym), unsigned long r_type, void *location, > + unsigned long address, unsigned long value) > { > dbgprintf("%s\n", reloc_name(r_type)); > switch(r_type) { > diff --git a/kexec/kexec-elf-rel.c b/kexec/kexec-elf-rel.c > index c625f30..9a6e63d 100644 > --- a/kexec/kexec-elf-rel.c > +++ b/kexec/kexec-elf-rel.c > @@ -408,7 +408,7 @@ int elf_rel_load(struct mem_ehdr *ehdr, struct kexec_info *info, > dbgprintf("sym: %s value: %lx addr: %lx\n", > name, value, address); > > - machine_apply_elf_rel(ehdr, rel.r_type, > + machine_apply_elf_rel(ehdr, &sym, rel.r_type, > (void *)location, address, value); > } > } > diff --git a/kexec/kexec-elf.h b/kexec/kexec-elf.h > index d0e9dc0..1164db4 100644 > --- a/kexec/kexec-elf.h > +++ b/kexec/kexec-elf.h > @@ -129,7 +129,8 @@ unsigned long elf_max_addr(const struct mem_ehdr *ehdr); > > /* Architecture specific helper functions */ > extern int machine_verify_elf_rel(struct mem_ehdr *ehdr); > -extern void machine_apply_elf_rel(struct mem_ehdr *ehdr, unsigned long r_type, > - void *location, unsigned long address, unsigned long value); > +extern void machine_apply_elf_rel(struct mem_ehdr *ehdr, struct mem_sym *sym, > + unsigned long r_type, void *location, unsigned long address, > + unsigned long value); > #endif /* KEXEC_ELF_H */ > > -- > 2.5.0 > > > _______________________________________________ > kexec mailing list > kexec at lists.infradead.org > http://lists.infradead.org/mailman/listinfo/kexec Tested the 3 patches on ppc64le installed Fedora 23 With the patches applied, I can not reproduce the bug below: https://bugzilla.redhat.com/show_bug.cgi?id=1310495 But loading older kernel ie. 3.10 kernel from RHEL it is not sufficient, still need another patch: http://lists.infradead.org/pipermail/kexec/2016-February/015445.html But above one is only necessary for old kernel, there may be some kernel changes for dtb in recent kernel, I'm not sure why kernel versions matter. Tested-by: Dave Young <dyoung at redhat.com> Thanks Dave