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| author | Dave Brolley <brolley@redhat.com> | 2007-02-05 19:50:12 +0000 |
|---|---|---|
| committer | Dave Brolley <brolley@redhat.com> | 2007-02-05 19:50:12 +0000 |
| commit | d93525185ce69a5f63029f41e439e4cc8869e210 (patch) | |
| tree | 69bccf971c2c0ee67bc42709708f2782ca1e1c47 | |
| parent | 9e5a05682cf4ef027e1a56c1a896967390644e0d (diff) | |
| download | gdb-d93525185ce69a5f63029f41e439e4cc8869e210.zip gdb-d93525185ce69a5f63029f41e439e4cc8869e210.tar.gz gdb-d93525185ce69a5f63029f41e439e4cc8869e210.tar.bz2 | |
Support for Toshiba MeP and for complex relocations.
| -rw-r--r-- | bfd/ChangeLog | 371 | ||||
| -rw-r--r-- | bfd/Makefile.am | 9 | ||||
| -rw-r--r-- | bfd/Makefile.in | 9 | ||||
| -rw-r--r-- | bfd/archures.c | 5 | ||||
| -rw-r--r-- | bfd/bfd-in2.h | 39 | ||||
| -rw-r--r-- | bfd/config.bfd | 5 | ||||
| -rwxr-xr-x | bfd/configure | 2 | ||||
| -rw-r--r-- | bfd/configure.in | 2 | ||||
| -rw-r--r-- | bfd/cpu-mep.c | 28 | ||||
| -rw-r--r-- | bfd/elf-bfd.h | 10 | ||||
| -rw-r--r-- | bfd/elf.c | 4 | ||||
| -rw-r--r-- | bfd/elf32-mep.c | 940 | ||||
| -rw-r--r-- | bfd/elfcode.h | 6 | ||||
| -rw-r--r-- | bfd/elflink.c | 713 | ||||
| -rw-r--r-- | bfd/libbfd.h | 23 | ||||
| -rwxr-xr-x | bfd/mep-relocs.pl | 274 | ||||
| -rw-r--r-- | bfd/reloc.c | 50 | ||||
| -rw-r--r-- | bfd/syms.c | 8 | ||||
| -rw-r--r-- | bfd/targets.c | 4 |
19 files changed, 2502 insertions, 0 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 3f41881..032ae91 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,374 @@ +2007-02-05 Dave Brolley <brolley@redhat.com> + + * elflink.c (evaluate_complex_relocation_symbols): Check for + STT_SRELC for global symbols. + (perform_complex_relocations): Renamed to + perform_complex_relocation and now examines only one relocation. + (elf_link_input_bfd): Don't call perform_complex_relocations. + * elf-bfd.h (bfd_elf_perform_complex_relocation_: New prototype.: + * elf32-mep.c (mep_elf_howto_table): Add R_RELC. + (OD,OS,OU): #undefs corrected to N, S and U repectively. + (mep_reloc_type_lookup): Handle BFD_RELOC_RELC. + (complex_reloc_installation_howto): Removed. + (mep_info_to_howto_rela): Remove special case for r_type==0xff. + (mep_elf_relocate_section): Call bfd_elf_perform_complex_relocation. + +2007-02-05 Dave Brolley <brolley@redhat.com> + + * Contribute the following changes: + 2006-12-19 Dave Brolley <brolley@redhat.com> + + * elf32-mep.c: Fix problems with DEBUG printfs. + * elflink.h (elf_link_input_bfd): Always setup finfo->internal_syms. + + 2006-10-17 Nick Clifton <nickc@redhat.com> + + * elf32-mep.c (mep_elf_print_private_bfd_data): Remove redundant + check against 0. + + 2006-09-25 Dave Brolley <brolley@redhat.com> + + * elf32-mep.c (mep_elf_print_private_bfd_data): Check that + (long)partial_flags is non-negative before using it as an + array index. + + 2004-06-24 Dave Brolley <brolley@redhat.com> + + * elf32-mep.c: Regenerated by MeP-Integrator. + + 2005-04-22 Richard Sandiford <rsandifo@redhat.com> + + * elf32-mep.c (mep_elf_merge_private_bfd_data): Allow two objects + to be linked together if one of them uses the EF_MEP_LIBRARY flag. + Give priority to flag sets in which EF_MEP_LIBRARY is not set. + + 2005-04-05 Richard Sandiford <rsandifo@redhat.com> + + * elf32-mep.c (config_names): Reduce divergence from MeP-Integrator + output. + + 2004-08-03 Richard Sandiford <rsandifo@redhat.com> + + * elf32-mep.c (mep_final_link_relocate): Fix overflow check for + R_MEP_PCABS24A2. + + 2004-06-24 Dave Brolley <brolley@redhat.com> + + * archures.c (bfd_mach_mep_h1): #define as 0x6831. + * bfd-in2.h: Regenerated. + + 2004-06-21 Dave Brolley <brolley@redhat.com> + + * elf32-mep.c (mep_elf_copy_private_bfd_data): Remove assertion about + flags being identical. + (mep_elf_merge_private_bfd_data): Handle existence of multiple CGEN + MACHs. + (mep_elf_print_private_bfd_data): Ditto. + (config_names): Give the machine at index 0 the name "basic". + (core_names): New table. + (elf32_mep_machine): New function. + (mep_elf_object_p): Call bfd_default_set_arch_mach. + * cpu-mep.c (bfd_h1_arch): Define it and link it into the chain. + * archures.c (bfd_mach_mep_h1): Define it. + * bfd-in2.h: Regenerated. + + 2003-07-19 Nick Clifton <nickc@redhat.com> + + * elf32-mep.c: Convert to ISO C. + + 2002-04-09 DJ Delorie <dj@redhat.com> + + * elf32-mep.c (mep_final_link_relocate): Allow impossible + relocations to undefined weak functions. + + 2002-02-08 Frank Ch. Eigler <fche@redhat.com> + + * cpu-mep.c (mep_compatible): Remove: only one bfd_mach used now. + * elf32-mep.c (elf32_mep_machine): Ditto. + + 2001-12-12 Ben Elliston <bje@redhat.com> + + * elf32-mep.c (mep_final_link_relocate): Do not adjust the pc + prior to applying a pc-relative relocation. + + 2001-10-02 Nick Clifton <nickc@cambridge.redhat.com> + + * elf32-mep.c: Add missing prototypes. + + 2001-10-01 Frank Ch. Eigler <fche@redhat.com> + + * elf32-mep.c (mep_elf_merge_private_bfd_data): Enforce endianness + compatibility. + + 2001-09-28 Richard Henderson <rth@redhat.com> + + * elf32-mep.c (mep_elf_section_flags): New. + (mep_elf_fake_sections): New. + (elf_backend_section_flags): New. + (elf_backend_fake_sections): New. + + 2001-09-27 Nick Clifton <nickc@cambridge.redhat.com> + + * elf32-mep.c: Add missing function prototypes. + Fix compile time warnings. Improve formatting. + * mep_relocs.pl: Improve formatting in generated code. + + 2001-09-21 Nick Clifton <nickc@cambridge.redhat.com> + + * cpu-mep.c: Add missing function prototype. + + 2001-07-25 DJ Delorie <dj@redhat.com> + + * elf32-mep.c (mep_final_link_relocate): Adjust calculation of PC + to be endian-sensitive. + + 2001-07-17 Richard Henderson <rth@redhat.com> + + * elf32-mep.c (mep_final_link_relocate) [R_MEP_HI16S]: Correctly + compensate for high bit set in R_MEP_LOW16. + + 2001-07-12 DJ Delorie <dj@redhat.com> + + * elf32-mep.c (mep_final_link_relocate): Don't do overflow + checking on VT relocs. + (mep_elf_merge_private_bfd_data): Return true if we chose not to + merge the data. + + 2001-07-09 DJ Delorie <dj@redhat.com> + + * cpu-mep.c (mep_compatible): New, base compatibility on + conflicting configurations. + (bfd_mep_arch): Use a macro and wrap with comments for the config + tool. + * elf32-mep.c (elf32_mep_machine): Take bfd_mach directly from + flags. + (mep_elf_merge_private_bfd_data): Merge configurations sanely. + (config_names): New. + (mep_elf_print_private_bfd_data): Print config name if possible. + + 2001-06-25 DJ Delorie <dj@redhat.com> + + * elf32-mep.c (mep_reloc_type_lookup): Add vtable special cases, + regenerate others. + * reloc.c: Regenerate with new elf/mep.h relocs. + * libbfd.h: Likewise. + * bfd-in2.h: Likewise. + + 2001-06-25 Ben Elliston <bje@redhat.com> + + * elf32-mep.c (mep_reloc): Mark unused parameters as such. + (mep_final_link_relocate): Remove unused local variables. + + 2001-06-06 DJ Delorie <dj@redhat.com> + + * config.bfd (mep-*-elf): Add bfd_elf32_mep_little_vec. + * configure.in: Ditto. + * configure: Ditto. + * mep-relocs.pl: Support both endians. + * elf32-mep.c: Regenerate; add little endian targets. + + 2001-05-31 DJ Delorie <dj@redhat.com> + + * elf32-mep.c (mep_elf_relocate_section): Fix error message. + + 2001-05-21 DJ Delorie <dj@redhat.com> + + * elf32-mep.c (mep_final_link_relocate): Fix pcrel logic. + + 2001-05-10 DJ Delorie <dj@redhat.com> + + * mep-relocs.pl: Detect no-overflow relocs better. + * elf32-mep.c: Regenerate. HI16U, HI16S have correct shifts and + those and LOW16 are no-overflow now. + + 2001-05-03 DJ Delorie <dj@redhat.com> + + * mep-relocs.pl: New, generates reloc-handling code for + elf32-mep.c. + * elf32-mep.c: Regenerate. + + 2001-05-02 DJ Delorie <dj@redhat.com> + + * elf32-mep.c (mep_elf_howto_table): Fix size fields. + (mep_lookup_global, mep_tpoff_base, mep_sdaoff_base): New, + support %tpoff() and %sdaoff() relocs. + (mep_final_link_reloc): Add support for MeP relocs. + (mep_elf_relocate_section): Support %tpoff() and %sdaoff(). + + 2001-05-01 DJ Delorie <dj@redhat.com> + + * elf32-mep.c: Use RELA only. + (mep_elf_howto_table): Add MeP-specific relocs. + (mep_reloc_type_lookup): Map relocs. + * reloc.c: Add MeP-specific relocs. + * bfd-in2.h: Regenerate. + * libbfd.h: Regenerate. + + 2001-04-03 Ben Elliston <bje@redhat.com> + + * Makefile.am (ALL_MACHINES): Add cpu-mep.lo. + (ALL_MACHINES_CFILES): Add cpu-mep.c. + (BFD32_BACKENDS): Add elf32-mep.lo. + (BFD32_BACKENDS_CFILES): Add elf32-mep.c. + (cpu-mep.lo): New target. + * Makefile.in: Regenerate. + * config.bfd: Handle mep-*-elf. + * archures.c (bfd_architecture): Add bfd_{arch,mach}_mep. + (bfd_archures_list): Add bfd_mep_arch. + * configure.in: Handle bfd_elf32_mep_vec. + * configure: Regenerate. + * targets.c (bfd_elf32_mep_vec): Declare. + (bfd_target_vector): Add bfd_elf32_mep_vec. + * elf.c (prep_headers): Set e_machine to EM_CYGNUS_MEP. + * cpu-mep.c: New file. + * elf32-mep.c: Likewise. + * bfd-in2.h: Regenerate. + * po/POTFILES.in: Likewise. + +2007-02-05 Dave Brolley <brolley@redhat.com> + + * Contribute the following changes: + 2004-07-23 Richard Sandiford <rsandifo@redhat.com> + + * elflink.c (perform_complex_relocation): Detect relocations against + undefined symbols. + + 2002-04-02 DJ Delorie <dj@redhat.com> + + * elflink.h (resolve_symbol): Handle weak symbols. + + 2002-03-07 Graydon Hoare <graydon@redhat.com> + + * elflink.h (perform_complex_relocations): Minor debug message + touchup. + + 2002-01-23 Graydon Hoare <graydon@redhat.com> + + * bfd-in2.h: Add signed RELC (SRELC) symbols. + * elf.c (swap_out_syms): Likewise. + * elfcode.h (elf_slurp_symbol_table): Likewise. + (elf_symbol_flags): Likewise. + * syms.c: Likewise. + * elflink.h (eval_symbol): Introduce signed RELC evaluation. + (evaluate_complex_relocation_symbols): Likewise. + (perform_complex_relocations): Remove sign-extension logic, + which was broken anyways. + + 2002-01-15 Graydon Hoare <graydon@redhat.com> + + * elflink.h (decode_complex_addend): Add oplen, signed_p, trunc_p + params. + (perform_complex_relocations): Call decode with new args, + Sign extend leftmost signed fields, delegate overflow check to + bfd_check_overflow in reloc.c, enhance overflow error messages. + + 2002-01-08 Graydon Hoare <graydon@redhat.com> + + * elflink.h (resolve_symbol): Fix symbol -> section relationship. + (resolve_symbol): Remove unused parameter. + (eval_symbol): Remove unused arg from resolve_symbol call. + + 2002-01-01 Graydon Hoare <graydon@redhat.com> + + * elflink.h (perform_complex_relocations): Add overflow + checking for RELC fragments. + + 2001-12-15 Nick Clifton <nickc@cambridge.redhat.com> + + * elflink.h (evaluate_complex_relocation_symbols): Formatting + tidy ups. Process all symbols, even if an error is + encountered. + + 2001-12-10 Graydon Hoare <graydon@redhat.com> + + * elflink.h (evaluate_complex_relocation_symbols): Resolve + global RELC symbols using separate logic from local symbols. + + 2001-12-10 Nick Clifton <nickc@cambridge.redhat.com> + + Various formatting tidy ups and compile time warning removals, + plus: + + * elflink.h (eval_symbol): Set bfd_error for failure returns. + (evaluate_complex_relocation_symbols): Only evaluate local + symbols. + + 2001-11-24 Graydon Hoare <graydon@redhat.com> + + * elflink.h.c (resolve_symbol): Skip non-local syms in + local lookup loop; get section offset from section + symbol occurs in (rather than reloc section); handle + common symbols. + + 2001-11-24 Graydon Hoare <graydon@redhat.com> + + * elflink.h.c (resolve_symbol): Use + bfd_elf_string_from_elf_section to look up local symbols in + current bfd. + (eval_symbol): Add input_bfd parameter for resolve_symbol's + use. + (evaluate_complex_relocation_symbols): Pass parameter. + (resolve_section) Fix silly typo. + + 2001-10-16 Jeff Holcomb <jeffh@redhat.com> + + * elflink.h (eval_symbol): Buffer size needs to be an integer for + Solaris cc. + + 2001-11-15 graydon hoare <graydon@redhat.com> + + * elf32-mep.c (mep_info_to_howto_rela): Add complex reloc + howto. + * elflink.h (resolve_section): Add support for pseudo-sections + in complex symbols. + (evaluate_complex_relocation_symbols): Permit evaluating RELC + symbols on non-RELC relocs. They are distinct issues. + + 2001-10-15 graydon hoare <graydon@redhat.com> + + * reloc.c (bfd_reloc_code_type): Define BFD_RELOC_RELC, + in the _correct_ place. + + 2001-10-11 graydon hoare <graydon@redhat.com> + + * elflink.h (eval_symbol): Fix strtol calls with undefined + behavior. + + 2001-10-03 graydon hoare <graydon@redhat.com> + + * elflink.h (set_symbol_value): New function for relc. + (resolve_symbol): Likewise. + (resolve_section): Likewise. + (undefined_reference): Likewise. + (eval_symbol): Likewise. + (evaluate_complex_relocation_symbols): Likewise. + (put_value): Likewise. + (get_value): Likewise. + (decode_complex_addend): Likewise. + (perform_complex_relocations): Likewise. + (elf_link_input_bfd): Insert hook into + evaluate_complex_relocation_symbols. + (elf_link_input_bfd): Insert hook into + perform_complex_relocations. + + * bfd-in2.h: Define BFD_RELOC_RELC, BSF_RELC. + + * elf.c (swap_out_syms): Add BSF_RELC / STT_RELC support. + + * elfcode.h (elf_slurp_symbol_table): Likewise. + (elf_symbol_flags): Likewise. + + * libbfd.h: Add "BFD_RELOC_RELC" to bfd_reloc_code_real_names + table. + + 2001-06-20 Frank Ch. Eigler <fche@redhat.com> + + * syms.c (BSF_RELC): New symbol flag. + * elf.c (swap_out_syms): Map BSF_RELC -> STT_RELC. + * elfcode.h (elf_slurp_symbol_table): Map STT_RELC -> BSF_RELC. + (elf_symbol_flags): Display BSF_RELC as "relc". + * bfd-in2.h: Regenerated. + 2007-02-05 Bob Wilson <bob.wilson@acm.org> * elf32-xtensa.c (elf_xtensa_make_sym_local): Delete. diff --git a/bfd/Makefile.am b/bfd/Makefile.am index 6b4aebf..2e6915b 100644 --- a/bfd/Makefile.am +++ b/bfd/Makefile.am @@ -91,6 +91,7 @@ ALL_MACHINES = \ cpu-m10300.lo \ cpu-maxq.lo \ cpu-mcore.lo \ + cpu-mep.lo \ cpu-mips.lo \ cpu-mmix.lo \ cpu-mt.lo \ @@ -155,6 +156,7 @@ ALL_MACHINES_CFILES = \ cpu-m10300.c \ cpu-maxq.c \ cpu-mcore.c \ + cpu-mep.c \ cpu-mips.c \ cpu-mmix.c \ cpu-mt.c \ @@ -266,6 +268,7 @@ BFD32_BACKENDS = \ elf-m10200.lo \ elf-m10300.lo \ elf32-mcore.lo \ + elf32-mep.lo \ elfxx-mips.lo \ elf32-mips.lo \ elf32-mt.lo \ @@ -442,6 +445,7 @@ BFD32_BACKENDS_CFILES = \ elf-m10200.c \ elf-m10300.c \ elf32-mcore.c \ + elf32-mep.c \ elfxx-mips.c \ elf32-mips.c \ elf32-mt.c \ @@ -1066,6 +1070,7 @@ cpu-m10200.lo: cpu-m10200.c $(INCDIR)/filenames.h $(INCDIR)/hashtab.h cpu-m10300.lo: cpu-m10300.c $(INCDIR)/filenames.h $(INCDIR)/hashtab.h cpu-maxq.lo: cpu-maxq.c $(INCDIR)/filenames.h $(INCDIR)/hashtab.h cpu-mcore.lo: cpu-mcore.c $(INCDIR)/filenames.h $(INCDIR)/hashtab.h +cpu-mep.lo: cpu-mep.c $(INCDIR)/filenames.h $(INCDIR)/hashtab.h cpu-mips.lo: cpu-mips.c $(INCDIR)/filenames.h $(INCDIR)/hashtab.h cpu-mmix.lo: cpu-mmix.c $(INCDIR)/filenames.h $(INCDIR)/hashtab.h cpu-mt.lo: cpu-mt.c $(INCDIR)/filenames.h $(INCDIR)/hashtab.h @@ -1408,6 +1413,10 @@ elf32-mcore.lo: elf32-mcore.c $(INCDIR)/filenames.h \ $(INCDIR)/bfdlink.h $(INCDIR)/hashtab.h elf-bfd.h $(INCDIR)/elf/common.h \ $(INCDIR)/elf/internal.h $(INCDIR)/elf/external.h $(INCDIR)/elf/mcore.h \ $(INCDIR)/elf/reloc-macros.h elf32-target.h +elf32-mep.lo: elf32-mep.c elf-bfd.h $(INCDIR)/elf/common.h \ + $(INCDIR)/elf/internal.h $(INCDIR)/elf/external.h $(INCDIR)/bfdlink.h \ + $(INCDIR)/elf/mep.h $(INCDIR)/elf/reloc-macros.h \ + elf32-target.h elfxx-mips.lo: elfxx-mips.c $(INCDIR)/filenames.h $(INCDIR)/hashtab.h \ $(INCDIR)/libiberty.h elf-bfd.h $(INCDIR)/elf/common.h \ $(INCDIR)/elf/internal.h $(INCDIR)/elf/external.h $(INCDIR)/bfdlink.h \ diff --git a/bfd/Makefile.in b/bfd/Makefile.in index c9a8c32..1fbbc0e 100644 --- a/bfd/Makefile.in +++ b/bfd/Makefile.in @@ -323,6 +323,7 @@ ALL_MACHINES = \ cpu-m10300.lo \ cpu-maxq.lo \ cpu-mcore.lo \ + cpu-mep.lo \ cpu-mips.lo \ cpu-mmix.lo \ cpu-mt.lo \ @@ -387,6 +388,7 @@ ALL_MACHINES_CFILES = \ cpu-m10300.c \ cpu-maxq.c \ cpu-mcore.c \ + cpu-mep.c \ cpu-mips.c \ cpu-mmix.c \ cpu-mt.c \ @@ -499,6 +501,7 @@ BFD32_BACKENDS = \ elf-m10200.lo \ elf-m10300.lo \ elf32-mcore.lo \ + elf32-mep.lo \ elfxx-mips.lo \ elf32-mips.lo \ elf32-mt.lo \ @@ -675,6 +678,7 @@ BFD32_BACKENDS_CFILES = \ elf-m10200.c \ elf-m10300.c \ elf32-mcore.c \ + elf32-mep.c \ elfxx-mips.c \ elf32-mips.c \ elf32-mt.c \ @@ -1629,6 +1633,7 @@ cpu-m10200.lo: cpu-m10200.c $(INCDIR)/filenames.h $(INCDIR)/hashtab.h cpu-m10300.lo: cpu-m10300.c $(INCDIR)/filenames.h $(INCDIR)/hashtab.h cpu-maxq.lo: cpu-maxq.c $(INCDIR)/filenames.h $(INCDIR)/hashtab.h cpu-mcore.lo: cpu-mcore.c $(INCDIR)/filenames.h $(INCDIR)/hashtab.h +cpu-mep.lo: cpu-mep.c $(INCDIR)/filenames.h $(INCDIR)/hashtab.h cpu-mips.lo: cpu-mips.c $(INCDIR)/filenames.h $(INCDIR)/hashtab.h cpu-mmix.lo: cpu-mmix.c $(INCDIR)/filenames.h $(INCDIR)/hashtab.h cpu-mt.lo: cpu-mt.c $(INCDIR)/filenames.h $(INCDIR)/hashtab.h @@ -1971,6 +1976,10 @@ elf32-mcore.lo: elf32-mcore.c $(INCDIR)/filenames.h \ $(INCDIR)/bfdlink.h $(INCDIR)/hashtab.h elf-bfd.h $(INCDIR)/elf/common.h \ $(INCDIR)/elf/internal.h $(INCDIR)/elf/external.h $(INCDIR)/elf/mcore.h \ $(INCDIR)/elf/reloc-macros.h elf32-target.h +elf32-mep.lo: elf32-mep.c elf-bfd.h $(INCDIR)/elf/common.h \ + $(INCDIR)/elf/internal.h $(INCDIR)/elf/external.h $(INCDIR)/bfdlink.h \ + $(INCDIR)/elf/mep.h $(INCDIR)/elf/reloc-macros.h \ + elf32-target.h elfxx-mips.lo: elfxx-mips.c $(INCDIR)/filenames.h $(INCDIR)/hashtab.h \ $(INCDIR)/libiberty.h elf-bfd.h $(INCDIR)/elf/common.h \ $(INCDIR)/elf/internal.h $(INCDIR)/elf/external.h $(INCDIR)/bfdlink.h \ diff --git a/bfd/archures.c b/bfd/archures.c index a9fca3b..f43e2e6 100644 --- a/bfd/archures.c +++ b/bfd/archures.c @@ -318,6 +318,9 @@ DESCRIPTION .#define bfd_mach_fr500 500 .#define bfd_mach_fr550 550 . bfd_arch_mcore, +. bfd_arch_mep, +.#define bfd_mach_mep 1 +.#define bfd_mach_mep_h1 0x6831 . bfd_arch_ia64, {* HP/Intel ia64 *} .#define bfd_mach_ia64_elf64 64 .#define bfd_mach_ia64_elf32 32 @@ -456,6 +459,7 @@ extern const bfd_arch_info_type bfd_m68k_arch; extern const bfd_arch_info_type bfd_m88k_arch; extern const bfd_arch_info_type bfd_maxq_arch; extern const bfd_arch_info_type bfd_mcore_arch; +extern const bfd_arch_info_type bfd_mep_arch; extern const bfd_arch_info_type bfd_mips_arch; extern const bfd_arch_info_type bfd_mmix_arch; extern const bfd_arch_info_type bfd_mn10200_arch; @@ -525,6 +529,7 @@ static const bfd_arch_info_type * const bfd_archures_list[] = &bfd_m88k_arch, &bfd_maxq_arch, &bfd_mcore_arch, + &bfd_mep_arch, &bfd_mips_arch, &bfd_mmix_arch, &bfd_mn10200_arch, diff --git a/bfd/bfd-in2.h b/bfd/bfd-in2.h index e641e83..66a7dd2 100644 --- a/bfd/bfd-in2.h +++ b/bfd/bfd-in2.h @@ -1974,6 +1974,9 @@ enum bfd_architecture #define bfd_mach_fr500 500 #define bfd_mach_fr550 550 bfd_arch_mcore, + bfd_arch_mep, +#define bfd_mach_mep 1 +#define bfd_mach_mep_h1 0x6831 bfd_arch_ia64, /* HP/Intel ia64 */ #define bfd_mach_ia64_elf64 64 #define bfd_mach_ia64_elf32 32 @@ -3560,6 +3563,29 @@ short offset into 11 bits. */ BFD_RELOC_MCORE_PCREL_JSR_IMM11BY2, BFD_RELOC_MCORE_RVA, +/* Toshiba Media Processor Relocations. */ + BFD_RELOC_MEP_8, + BFD_RELOC_MEP_16, + BFD_RELOC_MEP_32, + BFD_RELOC_MEP_PCREL8A2, + BFD_RELOC_MEP_PCREL12A2, + BFD_RELOC_MEP_PCREL17A2, + BFD_RELOC_MEP_PCREL24A2, + BFD_RELOC_MEP_PCABS24A2, + BFD_RELOC_MEP_LOW16, + BFD_RELOC_MEP_HI16U, + BFD_RELOC_MEP_HI16S, + BFD_RELOC_MEP_GPREL, + BFD_RELOC_MEP_TPREL, + BFD_RELOC_MEP_TPREL7, + BFD_RELOC_MEP_TPREL7A2, + BFD_RELOC_MEP_TPREL7A4, + BFD_RELOC_MEP_UIMM24, + BFD_RELOC_MEP_ADDR24A4, + BFD_RELOC_MEP_GNU_VTINHERIT, + BFD_RELOC_MEP_GNU_VTENTRY, + + /* These are relocations for the GETA instruction. */ BFD_RELOC_MMIX_GETA, BFD_RELOC_MMIX_GETA_1, @@ -4177,6 +4203,10 @@ This is the 5 bits of a value. */ BFD_RELOC_XSTORMY16_24, BFD_RELOC_XSTORMY16_FPTR16, +/* Self-describing complex relocations. */ + BFD_RELOC_RELC, + + /* Infineon Relocations. */ BFD_RELOC_XC16X_PAG, BFD_RELOC_XC16X_POF, @@ -4426,6 +4456,14 @@ typedef struct bfd_symbol /* This symbol is thread local. Used in ELF. */ #define BSF_THREAD_LOCAL 0x40000 + /* This symbol represents a complex relocation expression, + with the expression tree serialized in the symbol name. */ +#define BSF_RELC 0x80000 + + /* This symbol represents a signed complex relocation expression, + with the expression tree serialized in the symbol name. */ +#define BSF_SRELC 0x100000 + flagword flags; /* A pointer to the section to which this symbol is @@ -5161,6 +5199,7 @@ typedef struct bfd_target reloc_howto_type * (*reloc_type_lookup) (bfd *, bfd_reloc_code_real_type); + /* Routines used when writing an object file. */ #define BFD_JUMP_TABLE_WRITE(NAME) \ NAME##_set_arch_mach, \ diff --git a/bfd/config.bfd b/bfd/config.bfd index 70d2c70..871fb43 100644 --- a/bfd/config.bfd +++ b/bfd/config.bfd @@ -840,6 +840,11 @@ case "${targ}" in targ_selvecs="mcore_pe_big_vec mcore_pe_little_vec mcore_pei_big_vec mcore_pei_little_vec" ;; + mep-*-elf) + targ_defvec=bfd_elf32_mep_vec + targ_selvecs=bfd_elf32_mep_little_vec + ;; + mips*-big-*) targ_defvec=ecoff_big_vec targ_selvecs=ecoff_little_vec diff --git a/bfd/configure b/bfd/configure index bb52f50..5295a26 100755 --- a/bfd/configure +++ b/bfd/configure @@ -10869,6 +10869,8 @@ do bfd_elf32_m88k_vec) tb="$tb elf32-m88k.lo elf32.lo $elf" ;; bfd_elf32_mcore_big_vec) tb="$tb elf32-mcore.lo elf32.lo $elf" ;; bfd_elf32_mcore_little_vec) tb="$tb elf32-mcore.lo elf32.lo $elf" ;; + bfd_elf32_mep_vec) tb="$tb elf32-mep.lo elf32.lo $elf" ;; + bfd_elf32_mep_little_vec) tb="$tb elf32-mep.lo elf32.lo $elf" ;; bfd_elf32_mn10200_vec) tb="$tb elf-m10200.lo elf32.lo $elf" ;; bfd_elf32_mn10300_vec) tb="$tb elf-m10300.lo elf32.lo $elf" ;; bfd_elf32_mt_vec) tb="$tb elf32-mt.lo elf32.lo $elf" ;; diff --git a/bfd/configure.in b/bfd/configure.in index 5dcb91c..662d93a 100644 --- a/bfd/configure.in +++ b/bfd/configure.in @@ -650,6 +650,8 @@ do bfd_elf32_m88k_vec) tb="$tb elf32-m88k.lo elf32.lo $elf" ;; bfd_elf32_mcore_big_vec) tb="$tb elf32-mcore.lo elf32.lo $elf" ;; bfd_elf32_mcore_little_vec) tb="$tb elf32-mcore.lo elf32.lo $elf" ;; + bfd_elf32_mep_vec) tb="$tb elf32-mep.lo elf32.lo $elf" ;; + bfd_elf32_mep_little_vec) tb="$tb elf32-mep.lo elf32.lo $elf" ;; bfd_elf32_mn10200_vec) tb="$tb elf-m10200.lo elf32.lo $elf" ;; bfd_elf32_mn10300_vec) tb="$tb elf-m10300.lo elf32.lo $elf" ;; bfd_elf32_mt_vec) tb="$tb elf32-mt.lo elf32.lo $elf" ;; diff --git a/bfd/cpu-mep.c b/bfd/cpu-mep.c new file mode 100644 index 0000000..66db750 --- /dev/null +++ b/bfd/cpu-mep.c @@ -0,0 +1,28 @@ +/* BFD support for the Toshiba Media Engine Processor. + Copyright (C) 2001, 2002, 2004 Free Software Foundation, Inc. + + This file is part of BFD, the Binary File Descriptor library. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +#include "bfd.h" +#include "sysdep.h" +#include "libbfd.h" + +#define MA(x, n, def, y) { 32, 32, 8, bfd_arch_mep, x, "mep", n, \ + 2, def, bfd_default_compatible, bfd_default_scan, y } + +static const bfd_arch_info_type bfd_h1_arch = MA (bfd_mach_mep_h1, "h1", FALSE, NULL); +const bfd_arch_info_type bfd_mep_arch = MA (bfd_mach_mep, "mep", TRUE, & bfd_h1_arch); diff --git a/bfd/elf-bfd.h b/bfd/elf-bfd.h index a9d51a3..151c5d0 100644 --- a/bfd/elf-bfd.h +++ b/bfd/elf-bfd.h @@ -1735,6 +1735,16 @@ extern bfd_boolean _bfd_elf_symbol_refs_local_p extern bfd_boolean bfd_elf_match_symbols_in_sections (asection *, asection *, struct bfd_link_info *); +extern void bfd_elf_perform_complex_relocation + (bfd * output_bfd ATTRIBUTE_UNUSED, + struct bfd_link_info * info, + bfd * input_bfd, + asection * input_section, + bfd_byte * contents, + Elf_Internal_Rela * rel, + Elf_Internal_Sym * local_syms, + asection ** local_sections); + extern bfd_boolean _bfd_elf_setup_sections (bfd *); @@ -6378,6 +6378,10 @@ Unable to find equivalent output section for symbol '%s' from section '%s'"), type = STT_FUNC; else if ((flags & BSF_OBJECT) != 0) type = STT_OBJECT; + else if ((flags & BSF_RELC) != 0) + type = STT_RELC; + else if ((flags & BSF_SRELC) != 0) + type = STT_SRELC; else type = STT_NOTYPE; diff --git a/bfd/elf32-mep.c b/bfd/elf32-mep.c new file mode 100644 index 0000000..4036d1e --- /dev/null +++ b/bfd/elf32-mep.c @@ -0,0 +1,940 @@ +/* MeP-specific support for 32-bit ELF. + Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006 + Free Software Foundation, Inc. + + This file is part of BFD, the Binary File Descriptor library. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +#include "bfd.h" +#include "sysdep.h" +#include "libbfd.h" +#include "elf-bfd.h" +#include "elf/mep.h" +#include "libiberty.h" + +/* Forward declarations. */ + +/* Private relocation functions. */ + +#define MEPREL(type, size, bits, right, left, pcrel, overflow, mask) \ + {(unsigned)type, right, size, bits, pcrel, left, overflow, mep_reloc, #type, FALSE, 0, mask, 0 } + +#define N complain_overflow_dont +#define S complain_overflow_signed +#define U complain_overflow_unsigned + +static bfd_reloc_status_type mep_reloc (bfd *, arelent *, struct bfd_symbol *, + void *, asection *, bfd *, char **); + +static reloc_howto_type mep_elf_howto_table [] = +{ + /* type, size, bits, leftshift, rightshift, pcrel, OD/OS/OU, mask. */ + MEPREL (R_MEP_NONE, 0, 0, 0, 0, 0, N, 0), + MEPREL (R_RELC, 0, 0, 0, 0, 0, N, 0), + /* MEPRELOC:HOWTO */ + /* This section generated from bfd/mep-relocs.pl from include/elf/mep.h. */ + MEPREL (R_MEP_8, 0, 8, 0, 0, 0, U, 0xff), + MEPREL (R_MEP_16, 1, 16, 0, 0, 0, U, 0xffff), + MEPREL (R_MEP_32, 2, 32, 0, 0, 0, U, 0xffffffff), + MEPREL (R_MEP_PCREL8A2, 1, 8, 1, 1, 1, S, 0x00fe), + MEPREL (R_MEP_PCREL12A2,1, 12, 1, 1, 1, S, 0x0ffe), + MEPREL (R_MEP_PCREL17A2,2, 17, 0, 1, 1, S, 0x0000ffff), + MEPREL (R_MEP_PCREL24A2,2, 24, 0, 1, 1, S, 0x07f0ffff), + MEPREL (R_MEP_PCABS24A2,2, 24, 0, 1, 0, U, 0x07f0ffff), + MEPREL (R_MEP_LOW16, 2, 16, 0, 0, 0, N, 0x0000ffff), + MEPREL (R_MEP_HI16U, 2, 32, 0,16, 0, N, 0x0000ffff), + MEPREL (R_MEP_HI16S, 2, 32, 0,16, 0, N, 0x0000ffff), + MEPREL (R_MEP_GPREL, 2, 16, 0, 0, 0, S, 0x0000ffff), + MEPREL (R_MEP_TPREL, 2, 16, 0, 0, 0, S, 0x0000ffff), + MEPREL (R_MEP_TPREL7, 1, 7, 0, 0, 0, U, 0x007f), + MEPREL (R_MEP_TPREL7A2, 1, 7, 1, 1, 0, U, 0x007e), + MEPREL (R_MEP_TPREL7A4, 1, 7, 2, 2, 0, U, 0x007c), + MEPREL (R_MEP_UIMM24, 2, 24, 0, 0, 0, U, 0x00ffffff), + MEPREL (R_MEP_ADDR24A4, 2, 24, 0, 2, 0, U, 0x00fcffff), + MEPREL (R_MEP_GNU_VTINHERIT,1, 0,16,32, 0, N, 0x0000), + MEPREL (R_MEP_GNU_VTENTRY,1, 0,16,32, 0, N, 0x0000), + /* MEPRELOC:END */ +}; + +#define VALID_MEP_RELOC(N) ((N) >= 0 \ + && (N) < ARRAY_SIZE (mep_elf_howto_table) + +#undef N +#undef S +#undef U + +static bfd_reloc_status_type +mep_reloc + (bfd * abfd ATTRIBUTE_UNUSED, + arelent * reloc_entry ATTRIBUTE_UNUSED, + struct bfd_symbol * symbol ATTRIBUTE_UNUSED, + void * data ATTRIBUTE_UNUSED, + asection * input_section ATTRIBUTE_UNUSED, + bfd * output_bfd ATTRIBUTE_UNUSED, + char ** error_message ATTRIBUTE_UNUSED) +{ + return bfd_reloc_ok; +} + + + +#define BFD_RELOC_MEP_NONE BFD_RELOC_NONE +#if defined (__STDC__) || defined (ALMOST_STDC) || defined (HAVE_STRINGIZE) +#define MAP(n) case BFD_RELOC_MEP_##n: type = R_MEP_##n; break +#else +#define MAP(n) case BFD_RELOC_MEP_/**/n: type = R_MEP_/**/n; break +#endif + +static reloc_howto_type * +mep_reloc_type_lookup + (bfd * abfd ATTRIBUTE_UNUSED, + bfd_reloc_code_real_type code) +{ + unsigned int type = 0; + + switch (code) + { + MAP(NONE); + case BFD_RELOC_8: + type = R_MEP_8; + break; + case BFD_RELOC_16: + type = R_MEP_16; + break; + case BFD_RELOC_32: + type = R_MEP_32; + break; + case BFD_RELOC_VTABLE_ENTRY: + type = R_MEP_GNU_VTENTRY; + break; + case BFD_RELOC_VTABLE_INHERIT: + type = R_MEP_GNU_VTINHERIT; + break; + case BFD_RELOC_RELC: + type = R_RELC; + break; + + /* MEPRELOC:MAP */ + /* This section generated from bfd/mep-relocs.pl from include/elf/mep.h. */ + MAP(8); + MAP(16); + MAP(32); + MAP(PCREL8A2); + MAP(PCREL12A2); + MAP(PCREL17A2); + MAP(PCREL24A2); + MAP(PCABS24A2); + MAP(LOW16); + MAP(HI16U); + MAP(HI16S); + MAP(GPREL); + MAP(TPREL); + MAP(TPREL7); + MAP(TPREL7A2); + MAP(TPREL7A4); + MAP(UIMM24); + MAP(ADDR24A4); + MAP(GNU_VTINHERIT); + MAP(GNU_VTENTRY); + /* MEPRELOC:END */ + + default: + /* Pacify gcc -Wall. */ + fprintf (stderr, "mep: no reloc for code %d\n", code); + return NULL; + } + + if (mep_elf_howto_table[type].type != type) + { + fprintf (stderr, "MeP: howto %d has type %d\n", type, mep_elf_howto_table[type].type); + abort (); + } + + return mep_elf_howto_table + type; +} + +#undef MAP + + +/* Perform a single relocation. */ + +static struct bfd_link_info *mep_info; +static int warn_tp = 0, warn_sda = 0; + +static bfd_vma +mep_lookup_global + (char * name, + bfd_vma ofs, + bfd_vma * cache, + int * warn) +{ + struct bfd_link_hash_entry *h; + + if (*cache || *warn) + return *cache; + + h = bfd_link_hash_lookup (mep_info->hash, name, FALSE, FALSE, TRUE); + if (h == 0 || h->type != bfd_link_hash_defined) + { + *warn = ofs + 1; + return 0; + } + *cache = (h->u.def.value + + h->u.def.section->output_section->vma + + h->u.def.section->output_offset); + return *cache; +} + +static bfd_vma +mep_tpoff_base (bfd_vma ofs) +{ + static bfd_vma cache = 0; + return mep_lookup_global ("__tpbase", ofs, &cache, &warn_tp); +} + +static bfd_vma +mep_sdaoff_base (bfd_vma ofs) +{ + static bfd_vma cache = 0; + return mep_lookup_global ("__sdabase", ofs, &cache, &warn_sda); +} + +static bfd_reloc_status_type +mep_final_link_relocate + (reloc_howto_type * howto, + bfd * input_bfd, + asection * input_section, + bfd_byte * contents, + Elf_Internal_Rela * rel, + bfd_vma relocation) +{ + unsigned long u; + long s; + unsigned char *byte; + bfd_vma pc; + bfd_reloc_status_type r = bfd_reloc_ok; + int e2, e4; + + if (bfd_big_endian (input_bfd)) + { + e2 = 0; + e4 = 0; + } + else + { + e2 = 1; + e4 = 3; + } + + pc = (input_section->output_section->vma + + input_section->output_offset + + rel->r_offset); + + s = relocation + rel->r_addend; + + byte = (unsigned char *)contents + rel->r_offset; + + if (howto->type == R_MEP_PCREL24A2 + && s == 0 + && pc >= 0x800000) + { + /* This is an unreachable branch to an undefined weak function. + Silently ignore it, since the opcode can't do that but should + never be executed anyway. */ + return bfd_reloc_ok; + } + + if (howto->pc_relative) + s -= pc; + + u = (unsigned long) s; + + switch (howto->type) + { + /* MEPRELOC:APPLY */ + /* This section generated from bfd/mep-relocs.pl from include/elf/mep.h. */ + case R_MEP_8: /* 76543210 */ + if (u > 255) r = bfd_reloc_overflow; + byte[0] = (u & 0xff); + break; + case R_MEP_16: /* fedcba9876543210 */ + if (u > 65535) r = bfd_reloc_overflow; + byte[0^e2] = ((u >> 8) & 0xff); + byte[1^e2] = (u & 0xff); + break; + case R_MEP_32: /* vutsrqponmlkjihgfedcba9876543210 */ + byte[0^e4] = ((u >> 24) & 0xff); + byte[1^e4] = ((u >> 16) & 0xff); + byte[2^e4] = ((u >> 8) & 0xff); + byte[3^e4] = (u & 0xff); + break; + case R_MEP_PCREL8A2: /* --------7654321- */ + if (-128 > s || s > 127) r = bfd_reloc_overflow; + byte[1^e2] = (byte[1^e2] & 0x01) | (s & 0xfe); + break; + case R_MEP_PCREL12A2: /* ----ba987654321- */ + if (-2048 > s || s > 2047) r = bfd_reloc_overflow; + byte[0^e2] = (byte[0^e2] & 0xf0) | ((s >> 8) & 0x0f); + byte[1^e2] = (byte[1^e2] & 0x01) | (s & 0xfe); + break; + case R_MEP_PCREL17A2: /* ----------------gfedcba987654321 */ + if (-65536 > s || s > 65535) r = bfd_reloc_overflow; + byte[2^e2] = ((s >> 9) & 0xff); + byte[3^e2] = ((s >> 1) & 0xff); + break; + case R_MEP_PCREL24A2: /* -----7654321----nmlkjihgfedcba98 */ + if (-8388608 > s || s > 8388607) r = bfd_reloc_overflow; + byte[0^e2] = (byte[0^e2] & 0xf8) | ((s >> 5) & 0x07); + byte[1^e2] = (byte[1^e2] & 0x0f) | ((s << 3) & 0xf0); + byte[2^e2] = ((s >> 16) & 0xff); + byte[3^e2] = ((s >> 8) & 0xff); + break; + case R_MEP_PCABS24A2: /* -----7654321----nmlkjihgfedcba98 */ + if (u > 16777215) r = bfd_reloc_overflow; + byte[0^e2] = (byte[0^e2] & 0xf8) | ((u >> 5) & 0x07); + byte[1^e2] = (byte[1^e2] & 0x0f) | ((u << 3) & 0xf0); + byte[2^e2] = ((u >> 16) & 0xff); + byte[3^e2] = ((u >> 8) & 0xff); + break; + case R_MEP_LOW16: /* ----------------fedcba9876543210 */ + byte[2^e2] = ((u >> 8) & 0xff); + byte[3^e2] = (u & 0xff); + break; + case R_MEP_HI16U: /* ----------------vutsrqponmlkjihg */ + byte[2^e2] = ((u >> 24) & 0xff); + byte[3^e2] = ((u >> 16) & 0xff); + break; + case R_MEP_HI16S: /* ----------------vutsrqponmlkjihg */ + byte[2^e2] = ((s >> 24) & 0xff); + byte[3^e2] = ((s >> 16) & 0xff); + break; + case R_MEP_GPREL: /* ----------------fedcba9876543210 */ + s -= mep_sdaoff_base(rel->r_offset); + if (-32768 > s || s > 32767) r = bfd_reloc_overflow; + byte[2^e2] = ((s >> 8) & 0xff); + byte[3^e2] = (s & 0xff); + break; + case R_MEP_TPREL: /* ----------------fedcba9876543210 */ + s -= mep_tpoff_base(rel->r_offset); + if (-32768 > s || s > 32767) r = bfd_reloc_overflow; + byte[2^e2] = ((s >> 8) & 0xff); + byte[3^e2] = (s & 0xff); + break; + case R_MEP_TPREL7: /* ---------6543210 */ + u -= mep_tpoff_base(rel->r_offset); + if (u > 127) r = bfd_reloc_overflow; + byte[1^e2] = (byte[1^e2] & 0x80) | (u & 0x7f); + break; + case R_MEP_TPREL7A2: /* ---------654321- */ + u -= mep_tpoff_base(rel->r_offset); + if (u > 127) r = bfd_reloc_overflow; + byte[1^e2] = (byte[1^e2] & 0x81) | (u & 0x7e); + break; + case R_MEP_TPREL7A4: /* ---------65432-- */ + u -= mep_tpoff_base(rel->r_offset); + if (u > 127) r = bfd_reloc_overflow; + byte[1^e2] = (byte[1^e2] & 0x83) | (u & 0x7c); + break; + case R_MEP_UIMM24: /* --------76543210nmlkjihgfedcba98 */ + if (u > 16777215) r = bfd_reloc_overflow; + byte[1^e2] = (u & 0xff); + byte[2^e2] = ((u >> 16) & 0xff); + byte[3^e2] = ((u >> 8) & 0xff); + break; + case R_MEP_ADDR24A4: /* --------765432--nmlkjihgfedcba98 */ + if (u > 16777215) r = bfd_reloc_overflow; + byte[1^e2] = (byte[1^e2] & 0x03) | (u & 0xfc); + byte[2^e2] = ((u >> 16) & 0xff); + byte[3^e2] = ((u >> 8) & 0xff); + break; + case R_MEP_GNU_VTINHERIT: /* ---------------- */ + break; + case R_MEP_GNU_VTENTRY: /* ---------------- */ + break; + /* MEPRELOC:END */ + default: + abort (); + } + + return r; +} + +/* Set the howto pointer for a MEP ELF reloc. */ + +static void +mep_info_to_howto_rela + (bfd * abfd ATTRIBUTE_UNUSED, + arelent * cache_ptr, + Elf_Internal_Rela * dst) +{ + unsigned int r_type; + + r_type = ELF32_R_TYPE (dst->r_info); + cache_ptr->howto = & mep_elf_howto_table [r_type]; +} + +/* Look through the relocs for a section during the first phase. + Since we don't do .gots or .plts, we just need to consider the + virtual table relocs for gc. */ + +static bfd_boolean +mep_elf_check_relocs + (bfd * abfd, + struct bfd_link_info * info, + asection * sec, + const Elf_Internal_Rela * relocs) +{ + Elf_Internal_Shdr * symtab_hdr; + struct elf_link_hash_entry ** sym_hashes; + struct elf_link_hash_entry ** sym_hashes_end; + const Elf_Internal_Rela * rel; + const Elf_Internal_Rela * rel_end; + + if (info->relocatable) + return TRUE; + + symtab_hdr = &elf_tdata (abfd)->symtab_hdr; + sym_hashes = elf_sym_hashes (abfd); + sym_hashes_end = sym_hashes + symtab_hdr->sh_size / sizeof (Elf32_External_Sym); + if (!elf_bad_symtab (abfd)) + sym_hashes_end -= symtab_hdr->sh_info; + + rel_end = relocs + sec->reloc_count; + for (rel = relocs; rel < rel_end; rel++) + { + struct elf_link_hash_entry *h; + unsigned long r_symndx; + + r_symndx = ELF32_R_SYM (rel->r_info); + if (r_symndx < symtab_hdr->sh_info) + h = NULL; + else + h = sym_hashes[r_symndx - symtab_hdr->sh_info]; + } + return TRUE; +} + + +/* Relocate a MEP ELF section. + There is some attempt to make this function usable for many architectures, + both USE_REL and USE_RELA ['twould be nice if such a critter existed], + if only to serve as a learning tool. + + The RELOCATE_SECTION function is called by the new ELF backend linker + to handle the relocations for a section. + + The relocs are always passed as Rela structures; if the section + actually uses Rel structures, the r_addend field will always be + zero. + + This function is responsible for adjusting the section contents as + necessary, and (if using Rela relocs and generating a relocatable + output file) adjusting the reloc addend as necessary. + + This function does not have to worry about setting the reloc + address or the reloc symbol index. + + LOCAL_SYMS is a pointer to the swapped in local symbols. + + LOCAL_SECTIONS is an array giving the section in the input file + corresponding to the st_shndx field of each local symbol. + + The global hash table entry for the global symbols can be found + via elf_sym_hashes (input_bfd). + + When generating relocatable output, this function must handle + STB_LOCAL/STT_SECTION symbols specially. The output symbol is + going to be the section symbol corresponding to the output + section, which means that the addend must be adjusted + accordingly. */ + +static bfd_boolean +mep_elf_relocate_section + (bfd * output_bfd ATTRIBUTE_UNUSED, + struct bfd_link_info * info, + bfd * input_bfd, + asection * input_section, + bfd_byte * contents, + Elf_Internal_Rela * relocs, + Elf_Internal_Sym * local_syms, + asection ** local_sections) +{ + Elf_Internal_Shdr * symtab_hdr; + struct elf_link_hash_entry ** sym_hashes; + Elf_Internal_Rela * rel; + Elf_Internal_Rela * relend; + + symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr; + sym_hashes = elf_sym_hashes (input_bfd); + relend = relocs + input_section->reloc_count; + + mep_info = info; + + for (rel = relocs; rel < relend; rel ++) + { + reloc_howto_type * howto; + unsigned long r_symndx; + Elf_Internal_Sym * sym; + asection * sec; + struct elf_link_hash_entry * h; + bfd_vma relocation; + bfd_reloc_status_type r; + const char * name = NULL; + int r_type; + + r_type = ELF32_R_TYPE (rel->r_info); + + r_symndx = ELF32_R_SYM (rel->r_info); + + if (info->relocatable) + { + /* This is a relocatable link. We don't have to change + anything, unless the reloc is against a section symbol, + in which case we have to adjust according to where the + section symbol winds up in the output section. */ + if (r_symndx < symtab_hdr->sh_info) + { + sym = local_syms + r_symndx; + + if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) + { + sec = local_sections [r_symndx]; + rel->r_addend += sec->output_offset + sym->st_value; + } + } + + continue; + } + + /* Is this a complex relocation? */ + if (ELF32_R_TYPE (rel->r_info) == R_RELC) + { + bfd_elf_perform_complex_relocation (output_bfd, info, + input_bfd, input_section, contents, + rel, local_syms, local_sections); + continue; + } + + /* This is a final link. */ + howto = mep_elf_howto_table + ELF32_R_TYPE (rel->r_info); + h = NULL; + sym = NULL; + sec = NULL; + + if (r_symndx < symtab_hdr->sh_info) + { + sym = local_syms + r_symndx; + sec = local_sections [r_symndx]; + relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); + + name = bfd_elf_string_from_elf_section + (input_bfd, symtab_hdr->sh_link, sym->st_name); + name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name; +#if 0 + fprintf (stderr, "local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n", + sec->name, name, sym->st_name, + sec->output_section->vma, sec->output_offset, + sym->st_value, rel->r_addend); +#endif + } + else + { + h = sym_hashes [r_symndx]; + + while (h->root.type == bfd_link_hash_indirect + || h->root.type == bfd_link_hash_warning) + h = (struct elf_link_hash_entry *) h->root.u.i.link; + + name = h->root.root.string; + + if (h->root.type == bfd_link_hash_defined + || h->root.type == bfd_link_hash_defweak) + { + sec = h->root.u.def.section; + relocation = (h->root.u.def.value + + sec->output_section->vma + + sec->output_offset); +#if 0 + fprintf (stderr, + "defined: sec: %s, name: %s, value: %x + %x + %x gives: %x\n", + sec->name, name, h->root.u.def.value, + sec->output_section->vma, sec->output_offset, relocation); +#endif + } + else if (h->root.type == bfd_link_hash_undefweak) + { +#if 0 + fprintf (stderr, "undefined: sec: %s, name: %s\n", + sec->name, name); +#endif + relocation = 0; + } + else + { + if (! ((*info->callbacks->undefined_symbol) + (info, h->root.root.string, input_bfd, + input_section, rel->r_offset, + (!info->shared && info->unresolved_syms_in_objects == RM_GENERATE_ERROR)))) + return FALSE; +#if 0 + fprintf (stderr, "unknown: name: %s\n", name); +#endif + relocation = 0; + } + } + + switch (r_type) + { + default: + r = mep_final_link_relocate (howto, input_bfd, input_section, + contents, rel, relocation); + break; + } + + if (r != bfd_reloc_ok) + { + const char * msg = (const char *) NULL; + + switch (r) + { + case bfd_reloc_overflow: + r = info->callbacks->reloc_overflow + (info, (h ? &h->root : NULL), name, howto->name, (bfd_vma) 0, + input_bfd, input_section, rel->r_offset); + break; + + case bfd_reloc_undefined: + r = info->callbacks->undefined_symbol + (info, name, input_bfd, input_section, rel->r_offset, TRUE); + break; + + case bfd_reloc_outofrange: + msg = _("internal error: out of range error"); + break; + + case bfd_reloc_notsupported: + msg = _("internal error: unsupported relocation error"); + break; + + case bfd_reloc_dangerous: + msg = _("internal error: dangerous relocation"); + break; + + default: + msg = _("internal error: unknown error"); + break; + } + + if (msg) + r = info->callbacks->warning + (info, msg, name, input_bfd, input_section, rel->r_offset); + + if (! r) + return FALSE; + } + } + + if (warn_tp) + info->callbacks->undefined_symbol + (info, "__tpbase", input_bfd, input_section, warn_tp-1, TRUE); + if (warn_sda) + info->callbacks->undefined_symbol + (info, "__sdabase", input_bfd, input_section, warn_sda-1, TRUE); + if (warn_sda || warn_tp) + return FALSE; + + return TRUE; +} + + +/* Update the got entry reference counts for the section being + removed. */ + +static bfd_boolean +mep_elf_gc_sweep_hook + (bfd * abfd ATTRIBUTE_UNUSED, + struct bfd_link_info * info ATTRIBUTE_UNUSED, + asection * sec ATTRIBUTE_UNUSED, + const Elf_Internal_Rela * relocs ATTRIBUTE_UNUSED) +{ + return TRUE; +} + +/* Return the section that should be marked against GC for a given + relocation. */ + +static asection * +mep_elf_gc_mark_hook + (asection * sec, + struct bfd_link_info * info ATTRIBUTE_UNUSED, + Elf_Internal_Rela * rel, + struct elf_link_hash_entry * h, + Elf_Internal_Sym * sym) +{ + if (h != NULL) + { + switch (ELF32_R_TYPE (rel->r_info)) + { + default: + switch (h->root.type) + { + case bfd_link_hash_defined: + case bfd_link_hash_defweak: + return h->root.u.def.section; + + case bfd_link_hash_common: + return h->root.u.c.p->section; + + default: + break; + } + } + } + else + { + if (!(elf_bad_symtab (sec->owner) + && ELF_ST_BIND (sym->st_info) != STB_LOCAL) + && ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE) + && sym->st_shndx != SHN_COMMON)) + return bfd_section_from_elf_index (sec->owner, sym->st_shndx); + } + + return NULL; +} + + +/* Function to set the ELF flag bits. */ + +static bfd_boolean +mep_elf_set_private_flags (bfd * abfd, + flagword flags) +{ + elf_elfheader (abfd)->e_flags = flags; + elf_flags_init (abfd) = TRUE; + return TRUE; +} + +static bfd_boolean +mep_elf_copy_private_bfd_data (bfd * ibfd, bfd * obfd) +{ + if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour + || bfd_get_flavour (obfd) != bfd_target_elf_flavour) + return TRUE; + + elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; + elf_flags_init (obfd) = TRUE; + return TRUE; +} + +/* Merge backend specific data from an object file to the output + object file when linking. */ + +static bfd_boolean +mep_elf_merge_private_bfd_data (bfd * ibfd, bfd * obfd) +{ + static bfd *last_ibfd = 0; + flagword old_flags, new_flags; + flagword old_partial, new_partial; + + /* Check if we have the same endianess. */ + if (_bfd_generic_verify_endian_match (ibfd, obfd) == FALSE) + return FALSE; + + new_flags = elf_elfheader (ibfd)->e_flags; + old_flags = elf_elfheader (obfd)->e_flags; + +#ifdef DEBUG + _bfd_error_handler ("%B: old_flags = 0x%.8lx, new_flags = 0x%.8lx, init = %s", + ibfd, old_flags, new_flags, elf_flags_init (obfd) ? "yes" : "no"); +#endif + + /* First call, no flags set. */ + if (!elf_flags_init (obfd)) + { + elf_flags_init (obfd) = TRUE; + old_flags = new_flags; + } + else if ((new_flags | old_flags) & EF_MEP_LIBRARY) + { + /* Non-library flags trump library flags. The choice doesn't really + matter if both OLD_FLAGS and NEW_FLAGS have EF_MEP_LIBRARY set. */ + if (old_flags & EF_MEP_LIBRARY) + old_flags = new_flags; + } + else + { + /* Make sure they're for the same mach. Allow upgrade from the "mep" + mach. */ + new_partial = (new_flags & EF_MEP_CPU_MASK); + old_partial = (old_flags & EF_MEP_CPU_MASK); + if (new_partial == old_partial) + ; + else if (new_partial == EF_MEP_CPU_MEP) + ; + else if (old_partial == EF_MEP_CPU_MEP) + old_flags = (old_flags & ~EF_MEP_CPU_MASK) | new_partial; + else + { + _bfd_error_handler (_("%B and %B are for different cores"), last_ibfd, ibfd); + bfd_set_error (bfd_error_invalid_target); + return FALSE; + } + + /* Make sure they're for the same me_module. Allow basic config to + mix with any other. */ + new_partial = (new_flags & EF_MEP_INDEX_MASK); + old_partial = (old_flags & EF_MEP_INDEX_MASK); + if (new_partial == old_partial) + ; + else if (new_partial == 0) + ; + else if (old_partial == 0) + old_flags = (old_flags & ~EF_MEP_INDEX_MASK) | new_partial; + else + { + _bfd_error_handler (_("%B and %B are for different configurations"), last_ibfd, ibfd); + bfd_set_error (bfd_error_invalid_target); + return FALSE; + } + } + + elf_elfheader (obfd)->e_flags = old_flags; + last_ibfd = ibfd; + return TRUE; +} + +/* This will be edited by the MeP configration tool. */ +static const char * config_names[] = +{ + "basic" + /* start-mepcfgtool */ + ,"simple" + ,"fmax" + /* end-mepcfgtool */ +}; + +static const char * core_names[] = +{ + "MeP", "MeP-c2", "MeP-c3", "MeP-h1" +}; + +static bfd_boolean +mep_elf_print_private_bfd_data (bfd * abfd, void * ptr) +{ + FILE * file = (FILE *) ptr; + flagword flags, partial_flags; + + BFD_ASSERT (abfd != NULL && ptr != NULL); + + /* Print normal ELF private data. */ + _bfd_elf_print_private_bfd_data (abfd, ptr); + + flags = elf_elfheader (abfd)->e_flags; + fprintf (file, _("private flags = 0x%lx"), (long)flags); + + partial_flags = (flags & EF_MEP_CPU_MASK) >> 24; + if (partial_flags < ARRAY_SIZE (core_names)) + fprintf (file, " core: %s", core_names[(long)partial_flags]); + + partial_flags = flags & EF_MEP_INDEX_MASK; + if (partial_flags < ARRAY_SIZE (config_names)) + fprintf (file, " me_module: %s", config_names[(long)partial_flags]); + + fputc ('\n', file); + + return TRUE; +} + +/* Return the machine subcode from the ELF e_flags header. */ + +static int +elf32_mep_machine (bfd * abfd) +{ + switch (elf_elfheader (abfd)->e_flags & EF_MEP_CPU_MASK) + { + default: break; + case EF_MEP_CPU_C2: return bfd_mach_mep; + case EF_MEP_CPU_C3: return bfd_mach_mep; + case EF_MEP_CPU_C4: return bfd_mach_mep; + case EF_MEP_CPU_H1: return bfd_mach_mep_h1; + } + + return bfd_mach_mep; +} + +static bfd_boolean +mep_elf_object_p (bfd * abfd) +{ + /* Irix 5 and 6 is broken. Object file symbol tables are not always + sorted correctly such that local symbols preceed global symbols, + and the sh_info field in the symbol table is not always right. */ + /* This is needed for the RELC support code. */ + elf_bad_symtab (abfd) = TRUE; + bfd_default_set_arch_mach (abfd, bfd_arch_mep, elf32_mep_machine (abfd)); + return TRUE; +} + +static bfd_boolean +mep_elf_section_flags (flagword * flags, const Elf_Internal_Shdr * hdr) +{ + if (hdr->sh_flags & SHF_MEP_VLIW) + * flags |= SEC_MEP_VLIW; + return TRUE; +} + +static bfd_boolean +mep_elf_fake_sections (bfd * abfd ATTRIBUTE_UNUSED, + Elf_Internal_Shdr * hdr, + asection * sec) +{ + if (sec->flags & SEC_MEP_VLIW) + hdr->sh_flags |= SHF_MEP_VLIW; + return TRUE; +} + + +#define ELF_ARCH bfd_arch_mep +#define ELF_MACHINE_CODE EM_CYGNUS_MEP +#define ELF_MAXPAGESIZE 0x1000 + +#define TARGET_BIG_SYM bfd_elf32_mep_vec +#define TARGET_BIG_NAME "elf32-mep" + +#define TARGET_LITTLE_SYM bfd_elf32_mep_little_vec +#define TARGET_LITTLE_NAME "elf32-mep-little" + +#define elf_info_to_howto_rel NULL +#define elf_info_to_howto mep_info_to_howto_rela +#define elf_backend_relocate_section mep_elf_relocate_section +#define elf_backend_gc_mark_hook mep_elf_gc_mark_hook +#define elf_backend_gc_sweep_hook mep_elf_gc_sweep_hook +#define elf_backend_check_relocs mep_elf_check_relocs +#define elf_backend_object_p mep_elf_object_p +#define elf_backend_section_flags mep_elf_section_flags +#define elf_backend_fake_sections mep_elf_fake_sections + +#define elf_backend_can_gc_sections 1 + +#define bfd_elf32_bfd_reloc_type_lookup mep_reloc_type_lookup +#define bfd_elf32_bfd_set_private_flags mep_elf_set_private_flags +#define bfd_elf32_bfd_copy_private_bfd_data mep_elf_copy_private_bfd_data +#define bfd_elf32_bfd_merge_private_bfd_data mep_elf_merge_private_bfd_data +#define bfd_elf32_bfd_print_private_bfd_data mep_elf_print_private_bfd_data + +/* We use only the RELA entries. */ +#define USE_RELA + +#include "elf32-target.h" diff --git a/bfd/elfcode.h b/bfd/elfcode.h index d58cf34..04c2d91 100644 --- a/bfd/elfcode.h +++ b/bfd/elfcode.h @@ -1237,6 +1237,12 @@ elf_slurp_symbol_table (bfd *abfd, asymbol **symptrs, bfd_boolean dynamic) case STT_TLS: sym->symbol.flags |= BSF_THREAD_LOCAL; break; + case STT_RELC: + sym->symbol.flags |= BSF_RELC; + break; + case STT_SRELC: + sym->symbol.flags |= BSF_SRELC; + break; } if (dynamic) diff --git a/bfd/elflink.c b/bfd/elflink.c index 77aae5e..4da5d79 100644 --- a/bfd/elflink.c +++ b/bfd/elflink.c @@ -6348,6 +6348,716 @@ struct elf_outext_info struct elf_final_link_info *finfo; }; + +/* Support for evaluating a complex relocation. + + Complex relocations are generalized, self-describing relocations. The + implementation of them consists of two parts: complex symbols, and the + relocations themselves. + + The relocations are use a reserved elf-wide relocation type code (R_RELC + external / BFD_RELOC_RELC internal) and an encoding of relocation field + information (start bit, end bit, word width, etc) into the addend. This + information is extracted from CGEN-generated operand tables within gas. + + Complex symbols are mangled symbols (BSF_RELC external / STT_RELC + internal) representing prefix-notation expressions, including but not + limited to those sorts of expressions normally encoded as addends in the + addend field. The symbol mangling format is: + + <node> := <literal> + | <unary-operator> ':' <node> + | <binary-operator> ':' <node> ':' <node> + ; + + <literal> := 's' <digits=N> ':' <N character symbol name> + | 'S' <digits=N> ':' <N character section name> + | '#' <hexdigits> + ; + + <binary-operator> := as in C + <unary-operator> := as in C, plus "0-" for unambiguous negation. */ + +static void +set_symbol_value (bfd * bfd_with_globals, + struct elf_final_link_info * finfo, + int symidx, + bfd_vma val) +{ + bfd_boolean is_local; + Elf_Internal_Sym * sym; + struct elf_link_hash_entry ** sym_hashes; + struct elf_link_hash_entry * h; + + sym_hashes = elf_sym_hashes (bfd_with_globals); + sym = finfo->internal_syms + symidx; + is_local = ELF_ST_BIND(sym->st_info) == STB_LOCAL; + + if (is_local) + { + /* It is a local symbol: move it to the + "absolute" section and give it a value. */ + sym->st_shndx = SHN_ABS; + sym->st_value = val; + } + else + { + /* It is a global symbol: set its link type + to "defined" and give it a value. */ + h = sym_hashes [symidx]; + while (h->root.type == bfd_link_hash_indirect + || h->root.type == bfd_link_hash_warning) + h = (struct elf_link_hash_entry *) h->root.u.i.link; + h->root.type = bfd_link_hash_defined; + h->root.u.def.value = val; + h->root.u.def.section = bfd_abs_section_ptr; + } +} + +static bfd_boolean +resolve_symbol (const char * name, + bfd * input_bfd, + struct elf_final_link_info * finfo, + bfd_vma * result, + size_t locsymcount) +{ + Elf_Internal_Sym * sym; + struct bfd_link_hash_entry * global_entry; + const char * candidate = NULL; + Elf_Internal_Shdr * symtab_hdr; + asection * sec = NULL; + size_t i; + + symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr; + + for (i = 0; i < locsymcount; ++ i) + { + sym = finfo->internal_syms + i; + sec = finfo->sections [i]; + + if (ELF_ST_BIND (sym->st_info) != STB_LOCAL) + continue; + + candidate = bfd_elf_string_from_elf_section (input_bfd, + symtab_hdr->sh_link, + sym->st_name); +#ifdef DEBUG + printf ("Comparing string: '%s' vs. '%s' = 0x%x\n", + name, candidate, (unsigned int)sym->st_value); +#endif + if (candidate && strcmp (candidate, name) == 0) + { + * result = sym->st_value; + + if (sym->st_shndx > SHN_UNDEF && + sym->st_shndx < SHN_LORESERVE) + { +#ifdef DEBUG + printf ("adjusting for sec '%s' @ 0x%x + 0x%x\n", + sec->output_section->name, + (unsigned int)sec->output_section->vma, + (unsigned int)sec->output_offset); +#endif + * result += sec->output_offset + sec->output_section->vma; + } +#ifdef DEBUG + printf ("Found symbol with effective value %8.8x\n", (unsigned int)* result); +#endif + return TRUE; + } + } + + /* Hmm, haven't found it yet. perhaps it is a global. */ + global_entry = bfd_link_hash_lookup (finfo->info->hash, name, FALSE, FALSE, TRUE); + if (!global_entry) + return FALSE; + + if (global_entry->type == bfd_link_hash_defined + || global_entry->type == bfd_link_hash_defweak) + { + * result = global_entry->u.def.value + + global_entry->u.def.section->output_section->vma + + global_entry->u.def.section->output_offset; +#ifdef DEBUG + printf ("Found GLOBAL symbol '%s' with value %8.8x\n", + global_entry->root.string, (unsigned int)*result); +#endif + return TRUE; + } + + if (global_entry->type == bfd_link_hash_common) + { + *result = global_entry->u.def.value + + bfd_com_section_ptr->output_section->vma + + bfd_com_section_ptr->output_offset; +#ifdef DEBUG + printf ("Found COMMON symbol '%s' with value %8.8x\n", + global_entry->root.string, (unsigned int)*result); +#endif + return TRUE; + } + + return FALSE; +} + +static bfd_boolean +resolve_section (const char * name, + asection * sections, + bfd_vma * result) +{ + asection * curr; + unsigned int len; + + for (curr = sections; curr; curr = curr->next) + if (strcmp (curr->name, name) == 0) + { + *result = curr->vma; + return TRUE; + } + + /* Hmm. still haven't found it. try pseudo-section names. */ + for (curr = sections; curr; curr = curr->next) + { + len = strlen (curr->name); + if (len > strlen (name)) + continue; + + if (strncmp (curr->name, name, len) == 0) + { + if (strncmp (".end", name + len, 4) == 0) + { + *result = curr->vma + curr->size; + return TRUE; + } + + /* Insert more pseudo-section names here, if you like. */ + } + } + + return FALSE; +} + +static void +undefined_reference (const char * reftype, + const char * name) +{ + _bfd_error_handler (_("undefined %s reference in complex symbol: %s"), reftype, name); +} + +static bfd_boolean +eval_symbol (bfd_vma * result, + char * sym, + char ** advanced, + bfd * input_bfd, + struct elf_final_link_info * finfo, + bfd_vma addr, + bfd_vma section_offset, + size_t locsymcount, + int signed_p) +{ + int len; + int symlen; + bfd_vma a; + bfd_vma b; + const int bufsz = 4096; + char symbuf [bufsz]; + const char * symend; + bfd_boolean symbol_is_section = FALSE; + + len = strlen (sym); + symend = sym + len; + + if (len < 1 || len > bufsz) + { + bfd_set_error (bfd_error_invalid_operation); + return FALSE; + } + + switch (* sym) + { + case '.': + * result = addr + section_offset; + * advanced = sym + 1; + return TRUE; + + case '#': + ++ sym; + * result = strtoul (sym, advanced, 16); + return TRUE; + + case 'S': + symbol_is_section = TRUE; + case 's': + ++ sym; + symlen = strtol (sym, &sym, 10); + ++ sym; /* Skip the trailing ':'. */ + + if ((symend < sym) || ((symlen + 1) > bufsz)) + { + bfd_set_error (bfd_error_invalid_operation); + return FALSE; + } + + memcpy (symbuf, sym, symlen); + symbuf [symlen] = '\0'; + * advanced = sym + symlen; + + /* Is it always possible, with complex symbols, that gas "mis-guessed" + the symbol as a section, or vice-versa. so we're pretty liberal in our + interpretation here; section means "try section first", not "must be a + section", and likewise with symbol. */ + + if (symbol_is_section) + { + if ((resolve_section (symbuf, finfo->output_bfd->sections, result) != TRUE) + && (resolve_symbol (symbuf, input_bfd, finfo, result, locsymcount) != TRUE)) + { + undefined_reference ("section", symbuf); + return FALSE; + } + } + else + { + if ((resolve_symbol (symbuf, input_bfd, finfo, result, locsymcount) != TRUE) + && (resolve_section (symbuf, finfo->output_bfd->sections, + result) != TRUE)) + { + undefined_reference ("symbol", symbuf); + return FALSE; + } + } + + return TRUE; + + /* All that remains are operators. */ + +#define UNARY_OP(op) \ + if (strncmp (sym, #op, strlen (#op)) == 0) \ + { \ + sym += strlen (#op); \ + if (* sym == ':') \ + ++ sym; \ + if (eval_symbol (& a, sym, & sym, input_bfd, finfo, addr, \ + section_offset, locsymcount, signed_p) \ + != TRUE) \ + return FALSE; \ + if (signed_p) \ + * result = op ((signed)a); \ + else \ + * result = op a; \ + * advanced = sym; \ + return TRUE; \ + } + +#define BINARY_OP(op) \ + if (strncmp (sym, #op, strlen (#op)) == 0) \ + { \ + sym += strlen (#op); \ + if (* sym == ':') \ + ++ sym; \ + if (eval_symbol (& a, sym, & sym, input_bfd, finfo, addr, \ + section_offset, locsymcount, signed_p) \ + != TRUE) \ + return FALSE; \ + ++ sym; \ + if (eval_symbol (& b, sym, & sym, input_bfd, finfo, addr, \ + section_offset, locsymcount, signed_p) \ + != TRUE) \ + return FALSE; \ + if (signed_p) \ + * result = ((signed) a) op ((signed) b); \ + else \ + * result = a op b; \ + * advanced = sym; \ + return TRUE; \ + } + + default: + UNARY_OP (0-); + BINARY_OP (<<); + BINARY_OP (>>); + BINARY_OP (==); + BINARY_OP (!=); + BINARY_OP (<=); + BINARY_OP (>=); + BINARY_OP (&&); + BINARY_OP (||); + UNARY_OP (~); + UNARY_OP (!); + BINARY_OP (*); + BINARY_OP (/); + BINARY_OP (%); + BINARY_OP (^); + BINARY_OP (|); + BINARY_OP (&); + BINARY_OP (+); + BINARY_OP (-); + BINARY_OP (<); + BINARY_OP (>); +#undef UNARY_OP +#undef BINARY_OP + _bfd_error_handler (_("unknown operator '%c' in complex symbol"), * sym); + bfd_set_error (bfd_error_invalid_operation); + return FALSE; + } +} + +/* Entry point to evaluator, called from elf_link_input_bfd. */ + +static bfd_boolean +evaluate_complex_relocation_symbols (bfd * input_bfd, + struct elf_final_link_info * finfo, + size_t locsymcount) +{ + const struct elf_backend_data * bed; + Elf_Internal_Shdr * symtab_hdr; + struct elf_link_hash_entry ** sym_hashes; + asection * reloc_sec; + bfd_boolean result = TRUE; + + /* For each section, we're going to check and see if it has any + complex relocations, and we're going to evaluate any of them + we can. */ + + if (finfo->info->relocatable) + return TRUE; + + symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr; + sym_hashes = elf_sym_hashes (input_bfd); + bed = get_elf_backend_data (input_bfd); + + for (reloc_sec = input_bfd->sections; reloc_sec; reloc_sec = reloc_sec->next) + { + Elf_Internal_Rela * internal_relocs; + unsigned long i; + + /* This section was omitted from the link. */ + if (! reloc_sec->linker_mark) + continue; + + /* Only process sections containing relocs. */ + if ((reloc_sec->flags & SEC_RELOC) == 0) + continue; + + if (reloc_sec->reloc_count == 0) + continue; + + /* Read in the relocs for this section. */ + internal_relocs + = _bfd_elf_link_read_relocs (input_bfd, reloc_sec, NULL, + (Elf_Internal_Rela *) NULL, + FALSE); + if (internal_relocs == NULL) + continue; + + for (i = reloc_sec->reloc_count; i--;) + { + Elf_Internal_Rela * rel; + char * sym_name; + unsigned long index; + Elf_Internal_Sym * sym; + bfd_vma result; + bfd_vma section_offset; + bfd_vma addr; + int signed_p = 0; + + rel = internal_relocs + i; + section_offset = reloc_sec->output_section->vma + + reloc_sec->output_offset; + addr = rel->r_offset; + + index = ELF32_R_SYM (rel->r_info); + if (bed->s->arch_size == 64) + index >>= 24; + + if (index < locsymcount) + { + /* The symbol is local. */ + sym = finfo->internal_syms + index; + + /* We're only processing STT_RELC or STT_SRELC type symbols. */ + if ((ELF_ST_TYPE (sym->st_info) != STT_RELC) && + (ELF_ST_TYPE (sym->st_info) != STT_SRELC)) + continue; + + sym_name = bfd_elf_string_from_elf_section + (input_bfd, symtab_hdr->sh_link, sym->st_name); + + signed_p = (ELF_ST_TYPE (sym->st_info) == STT_SRELC); + } + else + { + /* The symbol is global. */ + struct elf_link_hash_entry * h; + + if (elf_bad_symtab (input_bfd)) + continue; + + h = sym_hashes [index - locsymcount]; + while ( h->root.type == bfd_link_hash_indirect + || h->root.type == bfd_link_hash_warning) + h = (struct elf_link_hash_entry *) h->root.u.i.link; + + if (h->type != STT_RELC && h->type != STT_SRELC) + continue; + + signed_p = (h->type == STT_SRELC); + sym_name = (char *) h->root.root.string; + } +#ifdef DEBUG + printf ("Encountered a complex symbol!"); + printf (" (input_bfd %s, section %s, reloc %ld\n", + input_bfd->filename, reloc_sec->name, i); + printf (" symbol: idx %8.8lx, name %s\n", + index, sym_name); + printf (" reloc : info %8.8lx, addr %8.8lx\n", + rel->r_info, addr); + printf (" Evaluating '%s' ...\n ", sym_name); +#endif + if (eval_symbol (& result, sym_name, & sym_name, input_bfd, + finfo, addr, section_offset, locsymcount, + signed_p)) + /* Symbol evaluated OK. Update to absolute value. */ + set_symbol_value (input_bfd, finfo, index, result); + + else + result = FALSE; + } + + if (internal_relocs != elf_section_data (reloc_sec)->relocs) + free (internal_relocs); + } + + /* If nothing went wrong, then we adjusted + everything we wanted to adjust. */ + return result; +} + +static void +put_value (bfd_vma size, + unsigned long chunksz, + bfd * input_bfd, + bfd_vma x, + bfd_byte * location) +{ + location += (size - chunksz); + + for (; size; size -= chunksz, location -= chunksz, x >>= (chunksz * 8)) + { + switch (chunksz) + { + default: + case 0: + abort (); + case 1: + bfd_put_8 (input_bfd, x, location); + break; + case 2: + bfd_put_16 (input_bfd, x, location); + break; + case 4: + bfd_put_32 (input_bfd, x, location); + break; + case 8: +#ifdef BFD64 + bfd_put_64 (input_bfd, x, location); +#else + abort (); +#endif + break; + } + } +} + +static bfd_vma +get_value (bfd_vma size, + unsigned long chunksz, + bfd * input_bfd, + bfd_byte * location) +{ + bfd_vma x = 0; + + for (; size; size -= chunksz, location += chunksz) + { + switch (chunksz) + { + default: + case 0: + abort (); + case 1: + x = (x << (8 * chunksz)) | bfd_get_8 (input_bfd, location); + break; + case 2: + x = (x << (8 * chunksz)) | bfd_get_16 (input_bfd, location); + break; + case 4: + x = (x << (8 * chunksz)) | bfd_get_32 (input_bfd, location); + break; + case 8: +#ifdef BFD64 + x = (x << (8 * chunksz)) | bfd_get_64 (input_bfd, location); +#else + abort (); +#endif + break; + } + } + return x; +} + +static void +decode_complex_addend + (unsigned long * start, /* in bits */ + unsigned long * oplen, /* in bits */ + unsigned long * len, /* in bits */ + unsigned long * wordsz, /* in bytes */ + unsigned long * chunksz, /* in bytes */ + unsigned long * lsb0_p, + unsigned long * signed_p, + unsigned long * trunc_p, + unsigned long encoded) +{ + * start = encoded & 0x3F; + * len = (encoded >> 6) & 0x3F; + * oplen = (encoded >> 12) & 0x3F; + * wordsz = (encoded >> 18) & 0xF; + * chunksz = (encoded >> 22) & 0xF; + * lsb0_p = (encoded >> 27) & 1; + * signed_p = (encoded >> 28) & 1; + * trunc_p = (encoded >> 29) & 1; +} + +void +bfd_elf_perform_complex_relocation + (bfd * output_bfd ATTRIBUTE_UNUSED, + struct bfd_link_info * info, + bfd * input_bfd, + asection * input_section, + bfd_byte * contents, + Elf_Internal_Rela * rel, + Elf_Internal_Sym * local_syms, + asection ** local_sections) +{ + const struct elf_backend_data * bed; + Elf_Internal_Shdr * symtab_hdr; + asection * sec; + bfd_vma relocation = 0, shift, x; + unsigned long r_symndx; + bfd_vma mask; + unsigned long start, oplen, len, wordsz, + chunksz, lsb0_p, signed_p, trunc_p; + + /* Perform this reloc, since it is complex. + (this is not to say that it necessarily refers to a complex + symbol; merely that it is a self-describing CGEN based reloc. + i.e. the addend has the complete reloc information (bit start, end, + word size, etc) encoded within it.). */ + r_symndx = ELF32_R_SYM (rel->r_info); + bed = get_elf_backend_data (input_bfd); + if (bed->s->arch_size == 64) + r_symndx >>= 24; + +#ifdef DEBUG + printf ("Performing complex relocation %ld...\n", r_symndx); +#endif + + symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr; + if (r_symndx < symtab_hdr->sh_info) + { + /* The symbol is local. */ + Elf_Internal_Sym * sym; + + sym = local_syms + r_symndx; + sec = local_sections [r_symndx]; + relocation = sym->st_value; + if (sym->st_shndx > SHN_UNDEF && + sym->st_shndx < SHN_LORESERVE) + relocation += (sec->output_offset + + sec->output_section->vma); + } + else + { + /* The symbol is global. */ + struct elf_link_hash_entry **sym_hashes; + struct elf_link_hash_entry * h; + + sym_hashes = elf_sym_hashes (input_bfd); + h = sym_hashes [r_symndx]; + + while (h->root.type == bfd_link_hash_indirect + || h->root.type == bfd_link_hash_warning) + h = (struct elf_link_hash_entry *) h->root.u.i.link; + + if (h->root.type == bfd_link_hash_defined + || h->root.type == bfd_link_hash_defweak) + { + sec = h->root.u.def.section; + relocation = h->root.u.def.value; + + if (! bfd_is_abs_section (sec)) + relocation += (sec->output_section->vma + + sec->output_offset); + } + if (h->root.type == bfd_link_hash_undefined + && !((*info->callbacks->undefined_symbol) + (info, h->root.root.string, input_bfd, + input_section, rel->r_offset, + info->unresolved_syms_in_objects == RM_GENERATE_ERROR + || ELF_ST_VISIBILITY (h->other)))) + return; + } + + decode_complex_addend (& start, & oplen, & len, & wordsz, + & chunksz, & lsb0_p, & signed_p, + & trunc_p, rel->r_addend); + + mask = (((1L << (len - 1)) - 1) << 1) | 1; + + if (lsb0_p) + shift = (start + 1) - len; + else + shift = (8 * wordsz) - (start + len); + + x = get_value (wordsz, chunksz, input_bfd, contents + rel->r_offset); + +#ifdef DEBUG + printf ("Doing complex reloc: " + "lsb0? %ld, signed? %ld, trunc? %ld, wordsz %ld, " + "chunksz %ld, start %ld, len %ld, oplen %ld\n" + " dest: %8.8lx, mask: %8.8lx, reloc: %8.8lx\n", + lsb0_p, signed_p, trunc_p, wordsz, chunksz, start, len, + oplen, x, mask, relocation); +#endif + + if (! trunc_p) + { + /* Now do an overflow check. */ + if (bfd_check_overflow ((signed_p ? + complain_overflow_signed : + complain_overflow_unsigned), + len, 0, (8 * wordsz), + relocation) == bfd_reloc_overflow) + (*_bfd_error_handler) + ("%s (%s + 0x%lx): relocation overflow: 0x%lx %sdoes not fit " + "within 0x%lx", + input_bfd->filename, input_section->name, rel->r_offset, + relocation, (signed_p ? "(signed) " : ""), mask); + } + + /* Do the deed. */ + x = (x & ~(mask << shift)) | ((relocation & mask) << shift); + +#ifdef DEBUG + printf (" relocation: %8.8lx\n" + " shifted mask: %8.8lx\n" + " shifted/masked reloc: %8.8lx\n" + " result: %8.8lx\n", + relocation, (mask << shift), + ((relocation & mask) << shift), x); +#endif + put_value (wordsz, chunksz, input_bfd, x, contents + rel->r_offset); +} + /* When performing a relocatable link, the input relocations are preserved. But, if they reference global symbols, the indices referenced must be updated. Update all the relocations in @@ -7509,6 +8219,9 @@ elf_link_input_bfd (struct elf_final_link_info *finfo, bfd *input_bfd) return FALSE; } + if (! evaluate_complex_relocation_symbols (input_bfd, finfo, locsymcount)) + return FALSE; + /* Relocate the contents of each section. */ sym_hashes = elf_sym_hashes (input_bfd); for (o = input_bfd->sections; o != NULL; o = o->next) diff --git a/bfd/libbfd.h b/bfd/libbfd.h index 8c55264..c564e30 100644 --- a/bfd/libbfd.h +++ b/bfd/libbfd.h @@ -1529,6 +1529,27 @@ static const char *const bfd_reloc_code_real_names[] = { "@@uninitialized@@", "BFD_RELOC_MCORE_PCREL_32", "BFD_RELOC_MCORE_PCREL_JSR_IMM11BY2", "BFD_RELOC_MCORE_RVA", + "BFD_RELOC_MEP_8", + "BFD_RELOC_MEP_16", + "BFD_RELOC_MEP_32", + "BFD_RELOC_MEP_PCREL8A2", + "BFD_RELOC_MEP_PCREL12A2", + "BFD_RELOC_MEP_PCREL17A2", + "BFD_RELOC_MEP_PCREL24A2", + "BFD_RELOC_MEP_PCABS24A2", + "BFD_RELOC_MEP_LOW16", + "BFD_RELOC_MEP_HI16U", + "BFD_RELOC_MEP_HI16S", + "BFD_RELOC_MEP_GPREL", + "BFD_RELOC_MEP_TPREL", + "BFD_RELOC_MEP_TPREL7", + "BFD_RELOC_MEP_TPREL7A2", + "BFD_RELOC_MEP_TPREL7A4", + "BFD_RELOC_MEP_UIMM24", + "BFD_RELOC_MEP_ADDR24A4", + "BFD_RELOC_MEP_GNU_VTINHERIT", + "BFD_RELOC_MEP_GNU_VTENTRY", + "BFD_RELOC_MMIX_GETA", "BFD_RELOC_MMIX_GETA_1", "BFD_RELOC_MMIX_GETA_2", @@ -1865,6 +1886,8 @@ static const char *const bfd_reloc_code_real_names[] = { "@@uninitialized@@", "BFD_RELOC_XSTORMY16_12", "BFD_RELOC_XSTORMY16_24", "BFD_RELOC_XSTORMY16_FPTR16", + "BFD_RELOC_RELC", + "BFD_RELOC_XC16X_PAG", "BFD_RELOC_XC16X_POF", "BFD_RELOC_XC16X_SEG", diff --git a/bfd/mep-relocs.pl b/bfd/mep-relocs.pl new file mode 100755 index 0000000..d227b82 --- /dev/null +++ b/bfd/mep-relocs.pl @@ -0,0 +1,274 @@ +#!/usr/bin/perl +# -*- perl -*- +# +# Toshiba MeP Media Engine Relocation Generator +# Copyright (C) 2001, 2007 Free Software Foundation, Inc. +# This file is part of BFD. +# Originally written by DJ Delorie <dj@redhat.com> +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + + +# Usage: Run this anywhere inside your source tree. It will read +# include/elf/mep.h and scan the comments therein. It will renumber +# the relocs to be sequential (this is needed so that bfd/elf32-mep.h +# works) if needed. It will then update the reloc list in bfd/reloc.c +# and the howto, mapping, and apply routines in bfd/elf32-mep.c. You +# can then regenerate bfd-in2.h and check everything in. + +# FIXME: After the relocation list is finalized, change this to +# *verify* the reloc list, rather than resequence it. + +while (! -f "include/elf/mep.h" && ! -f "bfd/reloc.c") { + chdir ".."; + $pwd = `pwd`; + if ($pwd !~ m@/.*/@) { + print STDERR "Cannot find include/elf/mep.h or bfd/reloc.h\n"; + exit 1; + } +} +$pwd = `pwd`; +print "srctop is $pwd"; + +printf "Reading include/elf/mep.h ...\n"; +open(MEPH, "include/elf/mep.h"); +open(MEPHO, "> include/elf/mep.h.new") || die("mep.h.new create: $!"); +$val = 0; +while (<MEPH>) { + if (($pre,$rel,$rest) = /(.*RELOC_NUMBER \()([^,]+), *\d+(.*)/) { + $rest =~ s/[\r\n]+$//; + print (MEPHO "$pre$rel, $val$rest\n") || die("mep.h.new write: $!"); + $val ++; + $rel =~ s/R_MEP_//; + push(@relocs, $rel); + + $rest =~ s@.*/\* @@; + ($pattern, $sign, $attrs) = $rest =~ m@(.*) ([US]) (.*)\*/@; + $pattern =~ s/ //g; + push(@pattern, $pattern); + push(@sign, $sign); + push(@attrs, $attrs); + + printf "%4d $rel p=`$pattern' s=`$sign' a=`$attrs'\n", $#pattern; + + } else { + print(MEPHO) || die("mep.h.new write: $!"); + } +} +close(MEPH); +close(MEPHO) || die("mep.h.new close: $!"); + +&swapfile("include/elf/mep.h"); + +redo_file ("bfd/reloc.c", + "", + "ENUMDOC\n Toshiba Media Processor Relocations.\n\nCOMMENT\n", + "ENUM\n BFD_RELOC_MEP_%s\n", + ""); + +$autogen = " /* This section generated from bfd/mep-relocs.pl from include/elf/mep.h. */\n"; + +redo_file ("bfd/elf32-mep.c", + "MEPRELOC:HOWTO", + $autogen, + "MEPRELOC:END", + "", + "&emit_howto();", + "MEPRELOC:MAP", + $autogen, + "MEPRELOC:END", + "", + " MAP(%s);\n", + "MEPRELOC:APPLY", + $autogen, + "MEPRELOC:END", + "", + "&emit_apply();", + ); + +sub mask2shifts { + my ($mask) = @_; + my ($bits, $left, $right, $ci, $c, $cv); + $bits = 0; + $left = 0; + $right = 32; + for ($ci=0; $ci<length($mask); $ci++) { + $c = substr($mask, $ci, 1); + $left++; + next if $c eq '-'; + $left = 0; + $cv = ord($c) - ord('0'); + $cv -= ord('a') - ord('9') - 1 if $cv > 9; + $right = $cv unless $right < $cv; + $bits = $cv+1 unless $bits > $cv+1; + } + $mask =~ tr/-/1/c; + $mask =~ tr/-/0/; + ($rmask = $mask) =~ tr/01/10/; + $mask = unpack("H*", pack("B*", $mask)); + $rmask = unpack("H*", pack("B*", $rmask)); + return ($bits, $left, $right, $mask, $rmask); +} + +sub emit_howto { + for ($i=2; $i<=$#relocs; $i++) { + $mask = $pattern[$i]; + + if (length($mask) == 8) { $bytesize = 0; } + elsif (length($mask) == 16) { $bytesize = 1; } + elsif (length($mask) == 32) { $bytesize = 2; } + + ($bits, $left, $right, $mask) = mask2shifts ($mask); + $bits[$i] = $bits; + $pcrel = 0; + $pcrel = 1 if $attrs[$i] =~ /pc-rel/i; + $overflow = $sign[$i]; + $overflow = 'N' if $attrs[$i] =~ /no-overflow/; + + $c = "$relocs[$i],"; + printf(NEW " MEPREL (R_MEP_%-10s%d,%3d,%2d,%2d,%2d,%2s, 0x%s),\n", + $c, $bytesize, $bits, $left, $right, $pcrel, $overflow, $mask); + } +} + +sub emit_apply { + for ($i=2; $i<=$#relocs; $i++) { + $v = "u"; + $v = "s" if $sign[$i] =~ /S/; + if (length($pattern[$i]) == 8) { + $e = ''; # no endian swap for bytes + } elsif ($pattern[$i] =~ /-/ || length($pattern[$i]) == 16) { + $e = '^e2'; # endian swap - 2byte words only + } else { + $e = '^e4' # endian swap for data + } + print NEW " case R_MEP_$relocs[$i]: /* $pattern[$i] */\n"; + if ($attrs[$i] =~ /tp-rel/i) { + print NEW " $v -= mep_tpoff_base(rel->r_offset);\n"; + } + if ($attrs[$i] =~ /gp-rel/i) { + print NEW " $v -= mep_sdaoff_base(rel->r_offset);\n"; + } + if ($attrs[$i] !~ /no-overflow/ && $bits[$i] < 32) { + if ($v eq "u") { + $max = (1 << $bits[$i]) - 1; + print NEW " if (u > $max) r = bfd_reloc_overflow;\n"; + } else { + $min = -(1 << ($bits[$i]-1)); + $max = (1 << ($bits[$i]-1)) - 1; + print NEW " if ($min > s || s > $max) r = bfd_reloc_overflow;\n"; + } + } + for ($b=0; $b<length($pattern[$i]); $b += 8) { + $mask = substr($pattern[$i], $b, 8); + ($bits, $left, $right, $mask, $rmask) = mask2shifts ($mask); + if ($left > $right) { $left -= $right; $right = 0; } + else { $right -= $left; $left = 0; } + + if ($mask ne "00") { + $bb = $b / 8; + print NEW " byte[$bb$e] = "; + print NEW "(byte[$bb$e] & 0x$rmask) | " if $rmask ne "00"; + if ($left) { + print NEW "(($v << $left) & 0x$mask)"; + } elsif ($right) { + print NEW "(($v >> $right) & 0x$mask)"; + } else { + print NEW "($v & 0x$mask)"; + } + print NEW ";\n"; + } + } + print NEW " break;\n"; + } +} + + +#----------------------------------------------------------------------------- + +sub redo_file { + my ($file, @control) = @_; + open(OLD, $file); + open(NEW, "> $file.new") || die("$file.new create: $!"); + + print "Scanning file $file ...\n"; + + while (1) { + $start = shift @control; + $prefix = shift @control; + $end = shift @control; + $suffix = shift @control; + $pattern = shift @control; + + if (!$start) { + print NEW while <OLD>; + last; + } + + print " looking for $start\n"; + while (<OLD>) { + print NEW; + last if /\Q$start\E/; + } + print "can't find $start\n" unless $_; + last unless $_; + + print NEW $prefix; + if ($pattern =~ /^\&/) { + eval $pattern; + die("$pattern: $@") if $@; + } else { + for $i (2..$#relocs) { + printf (NEW "$pattern", $relocs[$i]) || die("$file.new write: $!"); + $pattern =~ s/^ENUM\n/ENUMX\n/; + } + } + print NEW $suffix; + while (<OLD>) { + last if /\Q$end\E/; + } + print NEW; + } + + close(OLD); + close(NEW) || die("$file.new close: $!"); + &swapfile($file); +} + +#----------------------------------------------------------------------------- + +sub swapfile { + my ($f) = @_; + if ( ! -f "$f.save") { + system "cp $f $f.save"; + } + open(ORIG, $f); + open(NEW, "$f.new"); + while (<ORIG>) { + $n = <NEW>; + if ($n ne $_) { + close(ORIG); + close(NEW); + print " Updating $f\n"; + rename "$f", "$f.old"; + rename "$f.new", "$f"; + return; + } + } + close(ORIG); + close(NEW); + print " No change to $f\n"; + unlink "$f.new"; +} diff --git a/bfd/reloc.c b/bfd/reloc.c index 1b8c8d7..f81a3bf 100644 --- a/bfd/reloc.c +++ b/bfd/reloc.c @@ -3701,6 +3701,50 @@ ENUMDOC Motorola Mcore relocations. ENUM + BFD_RELOC_MEP_8 +ENUMX + BFD_RELOC_MEP_16 +ENUMX + BFD_RELOC_MEP_32 +ENUMX + BFD_RELOC_MEP_PCREL8A2 +ENUMX + BFD_RELOC_MEP_PCREL12A2 +ENUMX + BFD_RELOC_MEP_PCREL17A2 +ENUMX + BFD_RELOC_MEP_PCREL24A2 +ENUMX + BFD_RELOC_MEP_PCABS24A2 +ENUMX + BFD_RELOC_MEP_LOW16 +ENUMX + BFD_RELOC_MEP_HI16U +ENUMX + BFD_RELOC_MEP_HI16S +ENUMX + BFD_RELOC_MEP_GPREL +ENUMX + BFD_RELOC_MEP_TPREL +ENUMX + BFD_RELOC_MEP_TPREL7 +ENUMX + BFD_RELOC_MEP_TPREL7A2 +ENUMX + BFD_RELOC_MEP_TPREL7A4 +ENUMX + BFD_RELOC_MEP_UIMM24 +ENUMX + BFD_RELOC_MEP_ADDR24A4 +ENUMX + BFD_RELOC_MEP_GNU_VTINHERIT +ENUMX + BFD_RELOC_MEP_GNU_VTENTRY +ENUMDOC + Toshiba Media Processor Relocations. +COMMENT + +ENUM BFD_RELOC_MMIX_GETA ENUMX BFD_RELOC_MMIX_GETA_1 @@ -4671,6 +4715,12 @@ ENUMDOC Sony Xstormy16 Relocations. ENUM + BFD_RELOC_RELC +ENUMDOC + Self-describing complex relocations. +COMMENT + +ENUM BFD_RELOC_XC16X_PAG ENUMX BFD_RELOC_XC16X_POF @@ -288,6 +288,14 @@ CODE_FRAGMENT . {* This symbol is thread local. Used in ELF. *} .#define BSF_THREAD_LOCAL 0x40000 . +. {* This symbol represents a complex relocation expression, +. with the expression tree serialized in the symbol name. *} +.#define BSF_RELC 0x80000 +. +. {* This symbol represents a signed complex relocation expression, +. with the expression tree serialized in the symbol name. *} +.#define BSF_SRELC 0x100000 +. . flagword flags; . . {* A pointer to the section to which this symbol is diff --git a/bfd/targets.c b/bfd/targets.c index 71e3337..ae4d4bf 100644 --- a/bfd/targets.c +++ b/bfd/targets.c @@ -411,6 +411,7 @@ BFD_JUMP_TABLE macros. . reloc_howto_type * . (*reloc_type_lookup) (bfd *, bfd_reloc_code_real_type); . +. . {* Routines used when writing an object file. *} .#define BFD_JUMP_TABLE_WRITE(NAME) \ . NAME##_set_arch_mach, \ @@ -609,6 +610,8 @@ extern const bfd_target bfd_elf32_m68k_vec; extern const bfd_target bfd_elf32_m88k_vec; extern const bfd_target bfd_elf32_mcore_big_vec; extern const bfd_target bfd_elf32_mcore_little_vec; +extern const bfd_target bfd_elf32_mep_vec; +extern const bfd_target bfd_elf32_mep_little_vec; extern const bfd_target bfd_elf32_mn10200_vec; extern const bfd_target bfd_elf32_mn10300_vec; extern const bfd_target bfd_elf32_mt_vec; @@ -934,6 +937,7 @@ static const bfd_target * const _bfd_target_vector[] = &bfd_elf32_m88k_vec, &bfd_elf32_mcore_big_vec, &bfd_elf32_mcore_little_vec, + &bfd_elf32_mep_vec, &bfd_elf32_mn10200_vec, &bfd_elf32_mn10300_vec, &bfd_elf32_mt_vec, |