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[bfd] 

* elf32-rl78.c (rl78_elf_howto_table): Add R_RL78_RH_RELAX.
	(rl78_reloc_map): Add BFD_RELOC_RL78_RELAX.
	(rl78_elf_relocate_section): Add R_RL78_RH_RELAX, R_RL78_RH_SFR,
	and R_RL78_RH_SADDR.
	(rl78_elf_finish_dynamic_sections): Only validate PLT section if
	we didn't relax anything, as relaxing might remove a PLT reference
	after we've set up the table.
	(elf32_rl78_relax_delete_bytes): New.
	(reloc_bubblesort): New.
	(rl78_offset_for_reloc): New.
	(relax_addr16): New.
	(rl78_elf_relax_section): Add support for relaxing long
	instructions into short ones.

[gas]
	* config/rl78-defs.h (rl78_linkrelax_addr16): Add.
	(rl78_linkrelax_dsp, rl78_linkrelax_imm): Remove.
	* config/rl78-parse.y: Tag all addr16 and branch patterns with
	relaxation markers.
	* config/tc-rl78.c (rl78_linkrelax_addr16): New.
	(rl78_linkrelax_branch): New.
	(OPTION_RELAX): New.
	(md_longopts): Add relax option.
	(md_parse_option): Add OPTION_RELAX.
	(rl78_frag_init): Support relaxation.
	(rl78_handle_align): New.
	(md_assemble): Support relaxation.
	(md_apply_fix): Likewise.
	(md_convert_frag): Likewise.
	* config/tc-rl78.h (MAX_MEM_FOR_RS_ALIGN_CODE): New.
	(HANDLE_ALIGN): New.
	(rl78_handle_align): Declare.

	* config/rl78-parse.y (rl78_bit_insn): New.  Set it for all bit
	insn patterns.
	(find_bit_index): New.  Strip .BIT suffix off relevent
	expressions for bit insns.
	(rl78_lex): Exclude bit suffixes from expression parsing.

[include/elf]
	* rl78.h (R_RL78_RH_RELAX, R_RL78_RH_SFR, R_RL78_RH_SADDR): New.
	(RL78_RELAXA_BRA, RL78_RELAXA_ADDR16: New.
This commit is contained in:
DJ Delorie 2011-12-23 01:49:37 +00:00
parent a4ea75600c
commit 6d55bc5c8a
2 changed files with 12 additions and 6 deletions
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5
include/elf/ChangeLog
View File

@ -1,3 +1,8 @@
2011-12-22 DJ Delorie <dj@redhat.com>
* rl78.h (R_RL78_RH_RELAX, R_RL78_RH_SFR, R_RL78_RH_SADDR): New.
(RL78_RELAXA_BRA, RL78_RELAXA_ADDR16: New.
2011-12-06 Ulrich Weigand <uweigand@de.ibm.com> 2011-12-06 Ulrich Weigand <uweigand@de.ibm.com>
* common.h (NT_S390_LAST_BREAK): Define. * common.h (NT_S390_LAST_BREAK): Define.

13
include/elf/rl78.h
View File

@ -55,6 +55,11 @@ START_RELOC_NUMBERS (elf_rl78_reloc_type)
RELOC_NUMBER (R_RL78_DIR16_REV, 0x11) RELOC_NUMBER (R_RL78_DIR16_REV, 0x11)
RELOC_NUMBER (R_RL78_DIR3U_PCREL, 0x12) RELOC_NUMBER (R_RL78_DIR3U_PCREL, 0x12)
/* These are extensions added by Red Hat. */
RELOC_NUMBER (R_RL78_RH_RELAX, 0x2d) /* Marks opcodes suitable for linker relaxation. */
RELOC_NUMBER (R_RL78_RH_SFR, 0x2e) /* SFR addresses - internal use only. */
RELOC_NUMBER (R_RL78_RH_SADDR, 0x2f) /* SADDR addresses - internal use only.. */
/* These are for complex relocs. */ /* These are for complex relocs. */
RELOC_NUMBER (R_RL78_ABS32, 0x41) RELOC_NUMBER (R_RL78_ABS32, 0x41)
RELOC_NUMBER (R_RL78_ABS24S, 0x42) RELOC_NUMBER (R_RL78_ABS24S, 0x42)
@ -103,12 +108,8 @@ END_RELOC_NUMBERS (R_RL78_max)
#define E_FLAG_RL78_DSP (1 << 1) /* Defined in the RL78 CPU Object file specification, but not explained. */ #define E_FLAG_RL78_DSP (1 << 1) /* Defined in the RL78 CPU Object file specification, but not explained. */
/* These define the addend field of R_RL78_RH_RELAX relocations. */ /* These define the addend field of R_RL78_RH_RELAX relocations. */
#define RL78_RELAXA_IMM6 0x00000010 /* Imm8/16/24/32 at bit offset 6. */ #define RL78_RELAXA_BRA 0x00000010 /* Any type of branch (must be decoded). */
#define RL78_RELAXA_IMM12 0x00000020 /* Imm8/16/24/32 at bit offset 12. */ #define RL78_RELAXA_ADDR16 0x00000020 /* addr16->sfr/saddr opportunity */
#define RL78_RELAXA_DSP4 0x00000040 /* Dsp0/8/16 at bit offset 4. */
#define RL78_RELAXA_DSP6 0x00000080 /* Dsp0/8/16 at bit offset 6. */
#define RL78_RELAXA_DSP14 0x00000100 /* Dsp0/8/16 at bit offset 14. */
#define RL78_RELAXA_BRA 0x00000200 /* Any type of branch (must be decoded). */
#define RL78_RELAXA_RNUM 0x0000000f /* Number of associated relocations. */ #define RL78_RELAXA_RNUM 0x0000000f /* Number of associated relocations. */
/* These mark the place where alignment is requested, and the place where the filler bytes end. */ /* These mark the place where alignment is requested, and the place where the filler bytes end. */
#define RL78_RELAXA_ALIGN 0x10000000 /* Start alignment; the remaining bits are the alignment value. */ #define RL78_RELAXA_ALIGN 0x10000000 /* Start alignment; the remaining bits are the alignment value. */