On Thu, Aug 24, 2023 at 12:02:11AM +0200, Mark Wielaard wrote: > Handle RELR as defined here: > https://groups.google.com/g/generic-abi/c/bX460iggiKg/m/YT2RrjpMAwAJ > > Introduce new ELF_T_RELR Elf_Type and handle it for SHT_RELR. Check > various properties in elflint. Print RELR relocations in > readelf. Just the entries with -U. Just the addresses with -N. And > addresses pluse symbol/offsets by default. > > * libebl/eblsectiontypename.c (ebl_section_type_name): Add RELR > to knownstype. > * libelf/elf32_updatenull.c (updatenull_wrlock): Handle > sh_entsize for SHT_RELR. > * libelf/gelf.h (Gelf_Relr): New typedef for Elf64_Relr. > * libelf/gelf_fsize.c (__libelf_type_sizes): Add ELF_T_RELR. > * libelf/gelf_xlate.c (__elf_xfctstom): Likewise. > * libelf/gelf_xlate.h: Add RELR as FUNDAMENTAL. > * libelf/libelf.h (Elf_Type): Add ELF_T_RELR. > * libelf/libelfP.h: Define ELF32_FSZ_RELR and ELF64_FSZ_RELR. > * src/elflint.c (check_reloc_shdr): Check she_entsize for > ELF_T_RELR. > (check_relr): New function. > (check_dynamic): Handle DT_RELR. > (special_sections): Add SHT_RELR. > (check_sections): Call check_relr. > * src/readelf.c (print_relocs): Also accept a Dwfl_Module. > (handle_relocs_relr): New function. > (print_dwarf_addr): Make static and declare early. > (process_elf_file): Pass dwflmod to print_relocs. > (handle_dynamic): Handle DT_RELRSZ and DTRELRENT. > > Signed-off-by: Mark Wielaard <m...@klomp.org> > --- > libebl/eblsectiontypename.c | 3 +- > libelf/elf32_updatenull.c | 3 + > libelf/gelf.h | 3 + > libelf/gelf_fsize.c | 3 +- > libelf/gelf_xlate.c | 3 +- > libelf/gelf_xlate.h | 1 + > libelf/libelf.h | 1 + > libelf/libelfP.h | 2 + > src/elflint.c | 51 +++++++++++++-- > src/readelf.c | 125 ++++++++++++++++++++++++++++++++++-- > 10 files changed, 184 insertions(+), 11 deletions(-) > > diff --git a/libebl/eblsectiontypename.c b/libebl/eblsectiontypename.c > index 2008b95a..ade25d4a 100644 > --- a/libebl/eblsectiontypename.c > +++ b/libebl/eblsectiontypename.c > @@ -61,7 +61,8 @@ ebl_section_type_name (Ebl *ebl, int section, char *buf, > size_t len) > KNOWNSTYPE (FINI_ARRAY), > KNOWNSTYPE (PREINIT_ARRAY), > KNOWNSTYPE (GROUP), > - KNOWNSTYPE (SYMTAB_SHNDX) > + KNOWNSTYPE (SYMTAB_SHNDX), > + KNOWNSTYPE (RELR) > }; > > /* Handle standard names. */ > diff --git a/libelf/elf32_updatenull.c b/libelf/elf32_updatenull.c > index 6c06e5e4..c5d26b00 100644 > --- a/libelf/elf32_updatenull.c > +++ b/libelf/elf32_updatenull.c > @@ -256,6 +256,9 @@ __elfw2(LIBELFBITS,updatenull_wrlock) (Elf *elf, int > *change_bop, size_t shnum) > case SHT_SUNW_syminfo: > sh_entsize = elf_typesize (LIBELFBITS, ELF_T_SYMINFO, 1); > break; > + case SHT_RELR: > + sh_entsize = elf_typesize (LIBELFBITS, ELF_T_RELR, 1); > + break; > default: > break; > } > diff --git a/libelf/gelf.h b/libelf/gelf.h > index 7a3c87aa..f032d7e1 100644 > --- a/libelf/gelf.h > +++ b/libelf/gelf.h > @@ -82,6 +82,9 @@ typedef Elf64_Rel GElf_Rel; > /* Relocation table entry with addend (in section of type SHT_RELA). */ > typedef Elf64_Rela GElf_Rela; > > +/* Relative relocation entry (in section of type SHT_RELR). */ > +typedef Elf64_Relr Gelf_Relr;
Should this be GElf_Relr (with an uppercase E in GElf like the other typedefs)?
