From 35523deafcacd4478d067c5b648a1365e5204f62 Mon Sep 17 00:00:00 2001 From: "Maciej W. Rozycki" Date: Tue, 25 Jun 2013 18:02:33 +0000 Subject: bfd/ * elfxx-mips.h (_bfd_mips_elf_insn32): New prototype. * elfxx-mips.c (mips_elf_link_hash_table): Add insn32 member. (STUB_MOVE32_MICROMIPS, STUB_JALR32_MICROMIPS): New macros. (MICROMIPS_INSN32_FUNCTION_STUB_NORMAL_SIZE): Likewise. (MICROMIPS_INSN32_FUNCTION_STUB_BIG_SIZE): Likewise. (micromips_insn32_o32_exec_plt0_entry): New variable. (micromips_insn32_o32_exec_plt_entry): Likewise. (_bfd_mips_elf_adjust_dynamic_symbol): Handle insn32 mode. (mips_elf_estimate_stub_size): Likewise. (_bfd_mips_elf_size_dynamic_sections): Likewise. (_bfd_mips_elf_finish_dynamic_symbol): Likewise. (mips_finish_exec_plt): Likewise. (_bfd_mips_elf_relax_section): Likewise. (_bfd_mips_elf_insn32): New function. (_bfd_mips_elf_get_synthetic_symtab): Handle insn32 PLT. gas/ * config/tc-mips.c (mips_set_options): Add insn32 member. (mips_opts): Initialize it. (NOP_INSN, NOP_INSN_SIZE): Handle insn32 mode. (options): Add OPTION_INSN32 and OPTION_NO_INSN32 enum values. (md_longopts): Add "minsn32" and "mno-insn32" options. (is_size_valid): Handle insn32 mode. (md_assemble): Pass instruction string down to macro. (brk_fmt): Add second dimension and insn32 mode initializers. (mfhl_fmt): Likewise. (BRK_FMT, MFHL_FMT): Handle insn32 mode. (macro_build) <'c'>: Handle microMIPS 32-bit BREAK encoding. (macro_build_jalr, move_register): Handle insn32 mode. (macro_build_branch_rs): Likewise. (macro): Handle insn32 mode. , , : New cases. (mips_ip): Handle insn32 mode. (md_parse_option): Handle OPTION_INSN32 and OPTION_NO_INSN32. (s_mipsset): Handle "insn32" and "noinsn32" pseudo-ops. (mips_handle_align): Handle insn32 mode. (md_show_usage): Add -minsn32 and -mno-insn32. * doc/as.texinfo (Target MIPS options): Add -minsn32 and -mno-insn32 options. (-minsn32, -mno-insn32): New options. * doc/c-mips.texi (MIPS Opts): Add -minsn32 and -mno-insn32 options. (MIPS assembly options): New node. Document .set insn32 and .set noinsn32. (MIPS-Dependent): List the new node. gas/testsuite/ * gas/mips/micromips-insn32.d: New test. * gas/mips/micromips-noinsn32.d: Likewise. * gas/mips/micromips.l: Rename to... * gas/mips/micromips-warn.l: ... this. * gas/mips/micromips.d: Update accordingly. * gas/mips/micromips-trap.d: Likewise. * gas/mips/micromips.l: New list test. * gas/mips/micromips.s: Add conditionals. * gas/mips/mips.exp: Run the new tests. include/opcode/ * mips.h: Add M_JRADDIUSP, M_JRC and M_MOVEP anonymous enum values. ld/ * emultempl/mipself.em (insn32): New variable. (mips_create_output_section_statements): Handle insn32 mode. (PARSE_AND_LIST_PROLOGUE): New macro. (PARSE_AND_LIST_LONGOPTS): Likewise. (PARSE_AND_LIST_OPTIONS): Likewise. * gen-doc.texi: Set MIPS. * ld.texinfo: Likewise. (Options specific to MIPS targets): New section. (ld and MIPS family): New node. (Top, Machine Dependent): List the new node. opcodes/ * micromips-opc.c (micromips_opcodes): Add "jraddiusp", "jrc" and "movep" macros. --- ld/ld.texinfo | 56 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) (limited to 'ld/ld.texinfo') diff --git a/ld/ld.texinfo b/ld/ld.texinfo index 471cee9092..d783ca9959 100644 --- a/ld/ld.texinfo +++ b/ld/ld.texinfo @@ -26,6 +26,7 @@ @set I960 @set M68HC11 @set M68K +@set MIPS @set MMIX @set MSP430 @set POWERPC @@ -146,6 +147,9 @@ in the section entitled ``GNU Free Documentation License''. @ifset M68K * M68K:: ld and Motorola 68K family @end ifset +@ifset MIPS +* MIPS:: ld and MIPS family +@end ifset @ifset POWERPC * PowerPC ELF32:: ld and PowerPC 32-bit ELF Support @end ifset @@ -2732,6 +2736,32 @@ Info entry for @file{ld}. @c man end @end ifset +@ifset MIPS +@subsection Options specific to MIPS targets + +@c man begin OPTIONS + +The following options are supported to control microMIPS instruction +generation when linking for MIPS targets. + +@table @gcctabopt + +@kindex --insn32 +@item --insn32 +@kindex --no-insn32 +@itemx --no-insn32 +These options control the choice of microMIPS instructions used in code +generated by the linker, such as that in the PLT or lazy binding stubs, +or in relaxation. If @samp{--insn32} is used, then the linker only uses +32-bit instruction encodings. By default or if @samp{--no-insn32} is +used, all instruction encodings are used, including 16-bit ones where +possible. + +@end table + +@c man end +@end ifset + @ifset UsesEnvVars @node Environment @section Environment Variables @@ -6033,6 +6063,9 @@ functionality are not listed. @ifset M68K * M68K:: @command{ld} and the Motorola 68K family @end ifset +@ifset MIPS +* MIPS:: @command{ld} and the MIPS family +@end ifset @ifset MMIX * MMIX:: @command{ld} and MMIX @end ifset @@ -6531,6 +6564,29 @@ files might access different GOTs. Not all environments support such GOTs. @end ifclear @end ifset +@ifset MIPS +@ifclear GENERIC +@raisesections +@end ifclear + +@node MIPS +@section @command{ld} and the MIPS family + +@cindex MIPS microMIPS instruction choice selection +@kindex --insn32 +@kindex --no-insn32 +The @samp{--insn32} and @samp{--no-insn32} options control the choice of +microMIPS instructions used in code generated by the linker, such as that +in the PLT or lazy binding stubs, or in relaxation. If @samp{--insn32} is +used, then the linker only uses 32-bit instruction encodings. By default +or if @samp{--no-insn32} is used, all instruction encodings are used, +including 16-bit ones where possible. + +@ifclear GENERIC +@lowersections +@end ifclear +@end ifset + @ifset MMIX @ifclear GENERIC @raisesections -- cgit v1.2.1