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/libbfd.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'bfd/libbfd.h') diff --git a/bfd/libbfd.h b/bfd/libbfd.h index 0f8843e9477..bc45350ad2b 100644 --- a/bfd/libbfd.h +++ b/bfd/libbfd.h @@ -1216,7 +1216,11 @@ static const char *const bfd_reloc_code_real_names[] = { "@@uninitialized@@", "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", "BFD_RELOC_FRV_LABEL16", "BFD_RELOC_FRV_LABEL24", -- cgit v1.2.1