From bbd27b7684baf424bdaa7f0a1d39a2cd5b0d6134 Mon Sep 17 00:00:00 2001 From: "Maciej W. Rozycki" Date: Sat, 1 Jul 2017 00:42:19 +0100 Subject: MIPS/GAS: Use frag symbol/offset directly in fixup creation There is no need to use a helper expression in the creation of fixups made from a frag's symbol and offset, because a simple `symbol+offset' expression can be handled directly, with the use of a `fix_new' rather than a `fix_new_exp' call. Rewrite `md_convert_frag' using `fix_new' then and remove all the unneeded helper expressions, simplifying code. gas/ * config/tc-mips.c (md_convert_frag): Rewrite `fix_new_exp' calls in terms of `fix_new'. --- gas/ChangeLog | 5 ++++ gas/config/tc-mips.c | 77 ++++++++++++++++++++++------------------------------ 2 files changed, 38 insertions(+), 44 deletions(-) (limited to 'gas') diff --git a/gas/ChangeLog b/gas/ChangeLog index 7dad341..94a6a68 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,5 +1,10 @@ 2017-06-30 Maciej W. Rozycki + * config/tc-mips.c (md_convert_frag): Rewrite `fix_new_exp' + calls in terms of `fix_new'. + +2017-06-30 Maciej W. Rozycki + * config/tc-mips.c (md_convert_frag): Don't make a helper expression symbol for `fix_new_exp' called with a non-zero offset. diff --git a/gas/config/tc-mips.c b/gas/config/tc-mips.c index 3682cd5..a58c484 100644 --- a/gas/config/tc-mips.c +++ b/gas/config/tc-mips.c @@ -18135,7 +18135,6 @@ md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED, segT asec, fragS *fragp) { char *buf; unsigned long insn; - expressionS exp; fixS *fixp; buf = fragp->fr_literal + fragp->fr_fix; @@ -18146,12 +18145,9 @@ md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED, segT asec, fragS *fragp) /* We generate a fixup instead of applying it right now because, if there are linker relaxations, we're going to need the relocations. */ - exp.X_op = O_symbol; - exp.X_add_symbol = fragp->fr_symbol; - exp.X_add_number = fragp->fr_offset; - - fixp = fix_new_exp (fragp, buf - fragp->fr_literal, 4, &exp, TRUE, - BFD_RELOC_16_PCREL_S2); + fixp = fix_new (fragp, buf - fragp->fr_literal, 4, + fragp->fr_symbol, fragp->fr_offset, + TRUE, BFD_RELOC_16_PCREL_S2); fixp->fx_file = fragp->fr_file; fixp->fx_line = fragp->fr_line; @@ -18267,12 +18263,10 @@ md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED, segT asec, fragS *fragp) /* j or jal. */ insn = (RELAX_BRANCH_LINK (fragp->fr_subtype) ? 0x0c000000 : 0x08000000); - exp.X_op = O_symbol; - exp.X_add_symbol = fragp->fr_symbol; - exp.X_add_number = fragp->fr_offset; - fixp = fix_new_exp (fragp, buf - fragp->fr_literal, 4, &exp, - FALSE, BFD_RELOC_MIPS_JMP); + fixp = fix_new (fragp, buf - fragp->fr_literal, 4, + fragp->fr_symbol, fragp->fr_offset, + FALSE, BFD_RELOC_MIPS_JMP); fixp->fx_file = fragp->fr_file; fixp->fx_line = fragp->fr_line; @@ -18285,12 +18279,10 @@ md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED, segT asec, fragS *fragp) /* lw/ld $at, ($gp) R_MIPS_GOT16 */ insn = HAVE_64BIT_ADDRESSES ? 0xdf800000 : 0x8f800000; insn |= at << OP_SH_RT; - exp.X_op = O_symbol; - exp.X_add_symbol = fragp->fr_symbol; - exp.X_add_number = fragp->fr_offset; - fixp = fix_new_exp (fragp, buf - fragp->fr_literal, 4, &exp, - FALSE, BFD_RELOC_MIPS_GOT16); + fixp = fix_new (fragp, buf - fragp->fr_literal, 4, + fragp->fr_symbol, fragp->fr_offset, + FALSE, BFD_RELOC_MIPS_GOT16); fixp->fx_file = fragp->fr_file; fixp->fx_line = fragp->fr_line; @@ -18304,8 +18296,9 @@ md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED, segT asec, fragS *fragp) insn = HAVE_64BIT_ADDRESSES ? 0x64000000 : 0x24000000; insn |= at << OP_SH_RS | at << OP_SH_RT; - fixp = fix_new_exp (fragp, buf - fragp->fr_literal, 4, &exp, - FALSE, BFD_RELOC_LO16); + fixp = fix_new (fragp, buf - fragp->fr_literal, 4, + fragp->fr_symbol, fragp->fr_offset, + FALSE, BFD_RELOC_LO16); fixp->fx_file = fragp->fr_file; fixp->fx_line = fragp->fr_line; @@ -18339,13 +18332,8 @@ md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED, segT asec, fragS *fragp) int type = RELAX_MICROMIPS_TYPE (fragp->fr_subtype); bfd_boolean short_ds; unsigned long insn; - expressionS exp; fixS *fixp; - exp.X_op = O_symbol; - exp.X_add_symbol = fragp->fr_symbol; - exp.X_add_number = fragp->fr_offset; - fragp->fr_fix += fragp->fr_var; /* Handle 16-bit branches that fit or are forced to fit. */ @@ -18355,11 +18343,13 @@ md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED, segT asec, fragS *fragp) because if there is linker relaxation, we're going to need the relocations. */ if (type == 'D') - fixp = fix_new_exp (fragp, buf - fragp->fr_literal, 2, &exp, TRUE, - BFD_RELOC_MICROMIPS_10_PCREL_S1); + fixp = fix_new (fragp, buf - fragp->fr_literal, 2, + fragp->fr_symbol, fragp->fr_offset, + TRUE, BFD_RELOC_MICROMIPS_10_PCREL_S1); else if (type == 'E') - fixp = fix_new_exp (fragp, buf - fragp->fr_literal, 2, &exp, TRUE, - BFD_RELOC_MICROMIPS_7_PCREL_S1); + fixp = fix_new (fragp, buf - fragp->fr_literal, 2, + fragp->fr_symbol, fragp->fr_offset, + TRUE, BFD_RELOC_MICROMIPS_7_PCREL_S1); else abort (); @@ -18380,8 +18370,9 @@ md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED, segT asec, fragS *fragp) /* We generate a fixup instead of applying it right now, because if there is linker relaxation, we're going to need the relocations. */ - fixp = fix_new_exp (fragp, buf - fragp->fr_literal, 4, &exp, TRUE, - BFD_RELOC_MICROMIPS_16_PCREL_S1); + fixp = fix_new (fragp, buf - fragp->fr_literal, 4, + fragp->fr_symbol, fragp->fr_offset, + TRUE, BFD_RELOC_MICROMIPS_16_PCREL_S1); fixp->fx_file = fragp->fr_file; fixp->fx_line = fragp->fr_line; @@ -18518,8 +18509,9 @@ md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED, segT asec, fragS *fragp) /* j/jal/jals R_MICROMIPS_26_S1 */ insn = al ? jal : 0xd4000000; - fixp = fix_new_exp (fragp, buf - fragp->fr_literal, 4, &exp, FALSE, - BFD_RELOC_MICROMIPS_JMP); + fixp = fix_new (fragp, buf - fragp->fr_literal, 4, + fragp->fr_symbol, fragp->fr_offset, + FALSE, BFD_RELOC_MICROMIPS_JMP); fixp->fx_file = fragp->fr_file; fixp->fx_line = fragp->fr_line; @@ -18542,8 +18534,9 @@ md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED, segT asec, fragS *fragp) insn = HAVE_64BIT_ADDRESSES ? 0xdc1c0000 : 0xfc1c0000; insn |= at << MICROMIPSOP_SH_RT; - fixp = fix_new_exp (fragp, buf - fragp->fr_literal, 4, &exp, FALSE, - BFD_RELOC_MICROMIPS_GOT16); + fixp = fix_new (fragp, buf - fragp->fr_literal, 4, + fragp->fr_symbol, fragp->fr_offset, + FALSE, BFD_RELOC_MICROMIPS_GOT16); fixp->fx_file = fragp->fr_file; fixp->fx_line = fragp->fr_line; @@ -18553,8 +18546,9 @@ md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED, segT asec, fragS *fragp) insn = HAVE_64BIT_ADDRESSES ? 0x5c000000 : 0x30000000; insn |= at << MICROMIPSOP_SH_RT | at << MICROMIPSOP_SH_RS; - fixp = fix_new_exp (fragp, buf - fragp->fr_literal, 4, &exp, FALSE, - BFD_RELOC_MICROMIPS_LO16); + fixp = fix_new (fragp, buf - fragp->fr_literal, 4, + fragp->fr_symbol, fragp->fr_offset, + FALSE, BFD_RELOC_MICROMIPS_LO16); fixp->fx_file = fragp->fr_file; fixp->fx_line = fragp->fr_line; @@ -18758,7 +18752,6 @@ md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED, segT asec, fragS *fragp) if (need_reloc) { bfd_reloc_code_real_type reloc = BFD_RELOC_NONE; - expressionS exp; fixS *fixp; switch (type) @@ -18775,13 +18768,9 @@ md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED, segT asec, fragS *fragp) _("unsupported relocation")); else if (ext) { - exp.X_op = O_symbol; - exp.X_add_symbol = fragp->fr_symbol; - exp.X_add_number = fragp->fr_offset; - - fixp = fix_new_exp (fragp, buf - fragp->fr_literal, 4, &exp, - TRUE, reloc); - + fixp = fix_new (fragp, buf - fragp->fr_literal, 4, + fragp->fr_symbol, fragp->fr_offset, + TRUE, reloc); fixp->fx_file = fragp->fr_file; fixp->fx_line = fragp->fr_line; } -- cgit v1.1