From 81b42bcab16f4462eb4c91db2cf09cd76e17402e Mon Sep 17 00:00:00 2001 From: James Bowman Date: Wed, 1 Nov 2017 15:33:24 +0000 Subject: FT32B is a new FT32 family member. It has a code compression scheme, which requires the use of linker relaxations. The change is quite large, so submission is in several parts. Part 2 adds a relaxation pass, which actually implements the code compression scheme. bfd * archures.c: Add bfd_mach_ft32b. * cpu-ft32.c: Add arch_info_struct. * elf32-ft32.c: Add R_FT32_RELAX, SC0, SC1, DIFF32. (ft32_elf_relocate_section): Add clauses for R_FT32_SC0, SC1, DIFF32. (ft32_reloc_shortable, elf32_ft32_is_diff_reloc, elf32_ft32_adjust_diff_reloc_value, elf32_ft32_adjust_reloc_if_spans_insn, elf32_ft32_relax_delete_bytes, elf32_ft32_relax_is_branch_target, ft32_elf_relax_section): New function. * reloc.c: Add BFD_RELOC_FT32_RELAX, SC0, SC1, DIFF32. * bfd-in2.h: Regenerate. * libbfd.h: Regenerate. gas * config/tc-ft32.c (md_assemble): add relaxation reloc BFD_RELOC_FT32_RELAX. (md_longopts): Add "norelax" and "no-relax". (md_apply_fix): Add reloc BFD_RELOC_FT32_DIFF32. (relaxable_section, ft32_validate_fix_sub, ft32_force_relocation, ft32_allow_local_subtract): New function. * config/tc-ft32.h: remove unused MD_PCREL_FROM_SECTION. * testsuite/gas/ft32/insnsc.s: New test exercising all FT32B shortcodes. include * elf/ft32.h: Add R_FT32_RELAX, SC0, SC1, DIFF32. --- bfd/bfd-in2.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'bfd/bfd-in2.h') diff --git a/bfd/bfd-in2.h b/bfd/bfd-in2.h index 503e237..1b483bd 100644 --- a/bfd/bfd-in2.h +++ b/bfd/bfd-in2.h @@ -2265,6 +2265,7 @@ enum bfd_architecture #define bfd_mach_moxie 1 bfd_arch_ft32, /* The ft32 processor */ #define bfd_mach_ft32 1 +#define bfd_mach_ft32b 2 bfd_arch_mcore, bfd_arch_mep, #define bfd_mach_mep 1 @@ -3149,7 +3150,11 @@ to compensate for the borrow when the low bits are added. */ BFD_RELOC_FT32_20, BFD_RELOC_FT32_17, BFD_RELOC_FT32_18, + BFD_RELOC_FT32_RELAX, + BFD_RELOC_FT32_SC0, + BFD_RELOC_FT32_SC1, BFD_RELOC_FT32_15, + BFD_RELOC_FT32_DIFF32, /* Fujitsu Frv Relocations. */ -- cgit v1.1