gcc-5 correctly complains "loop exit may only be reached after
undefined behavior". I was going to correct this by checking the
index before dereferencing the array rather than the other way around,
but then I noticed it is possible for extract_cmd to write the
terminating zero one past the end of "cmd". Fixing that means no
index check is needed in md_assemble.
* config/tc-msp430.c (md_assemble): Correct size passed to
extract_cmd. Remove index check.
* config/tc-msp430.c (OPTION_WARN_INTR_NOPS): Use y instead of z.
(OPTION_NO_WARN_INTR_NOPS): Use Y instead of Z.
* doc/c-msp430.texi: Update command line option description.
* gas/msp430/bad.d: Use -my not -mz.
* config/tc-msp430.c (CHECK_RELOC_MSP430): Add OP parameter.
Generate BFD_RELOC_MSP430_ABS_HI16 if vshift is 1.
(msp430_srcoperand): Store vshift value in operand.
* msp430.h (struct msp430_operand_s): Add vshift field.
* gas/elf/struct.d: Expect extra output from some toolchains.
* gas/symver/symver0.d: Likewise.
* gas/symver/symver1.d: Likewise.
generate warning messages about an instruction that changes the interrupt
state not being followed by a NOP instruction.
* config/msp430/msp430.c: Replace known mcu array with known
msp430 ISA mcu name array.
Accept any name for -mmcu option.
Add -mz option to warn about missing NOP following an interrupt
status change.
(check_for_nop): New.
(msp430_operands): Emit a warning, if requested, when an interrupt
changing instruction is not followed by a NOP.
* doc/c-msp430.c: Document -mz option.
* gas/msp430/bad.d: Add -mz option.
* gas/msp430/bad.s: Add more cases where warnings should be
generated.
* gas/msp430/bad.l: Add expected warning messages.
For each object, if it has a nonempty .data or .bss section,
emit a symbol that could cause the startup code to selectively
link in the code to initialize those sections.
* config/tc-msp430.c (msp430_section): Always flag data sections,
regardless of -md.
(msp430_frob_section): New. Make sure all sections are noticed if
they have content.
(msp430_lcomm): New. Flag bss if .lcomm is seen.
(msp430_comm): New. Likewise.
(md_pseudo_table): Add them.
* config/tc-msp430.h (msp430_frob_section): Declare.
(tc_frob_section): Define.
New MSP430 MCU parts are being created by TI all the time and the
list is basically always out of date. Instead any name will be
accepted by the -mmcu= command line option. ISA selection is now
based upon the -mcpu= command line option, just as is done for GCC.
gas/ChangeLog
* config/tc-msp430.c (show_mcu_list): Delete.
(md_parse_option): Accept any MCU name. Accept several more
variants for the -mcpu option.
(md_show_usage): Do not call show_mcu_list.
* config/tc-msp430.c (msp430_refsym): New: ".refsym <symbol>"
* doc/c-msp430.texi (MSP430 Directives): Document it.
The purpose of this patch is to provide a way for one object file
to require the inclusion of another object, without having to
allocate space for a .word address reference.
(OPTION_INTR_NOPS): Define.
(gen_interrupt_nops): Default to FALSE.
(md_parse_opton): Add support for OPTION_INTR_NOPS.
(md_longopts): Add -mn.
(md_show_usage): Add -mn.
(msp430_operands): Generate NOPs for all MCUs not just 430Xv2.
* doc/c-msp430.c: Document -mn.
for "<foo>a". Issue error messages for unrecognised or corrrupt
size extensions.
* gas/msp430/bad.s: New test: Checks erroneous size extensions.
* gas/msp430/bad.d: New test command file.
* gas/msp430/bad.l: New file: Expected error messages.
* gas/msp430/msp430.exp: Run the new test.
* gas/msp430/msp430x.s: Add "<foo>.a" aliases of "<foo>a"
instructions.
* gas/msp430/msp430x.d: Update expected disassembly.
(move_data): New variable.
(md_parse_option): Parse -md.
(msp430_section): New function. Catch references to the .bss or
.data sections and generate a special symbol for use by the libcrt
library.
(md_pseudo_table): Intercept .section directives.
(md_longopt): Add -md
(md_show_usage): Likewise.
(msp430_operands): Generate a warning message if a NOP is inserted
into the instruction stream.
* doc/c-msp430.texi (node MSP430 Options): Document -md option.
Add -mcpu command to specify core type.
* doc/c-msp430.c: Update documentation.
* gas/msp430/opcodes.s: Use correct value for .arch pseudo.
* gas/msp430/msp430x.d: Use correct value for -mcpu option.
* config.bfd (msp430): Define targ_selvecs.
* configure.in: Add bfd_elf32_msp430_ti_vec.
* cpu-msp430.c: Add some more MSP430 machine numbers.
* elf32-msp430.c Add support for MSP430X relocations.
Add support for TI compiler generated relocations.
Add support for sym_diff relocations.
Add support for relaxing out of range short branches into long
branches.
Add support for MSP430 attribute section.
* reloc.c: Add MSP430X relocations.
* targets.c: Add bfd_elf32_msp430_ti_vec.
* bfd-in2.h: Regenerate.
* configure: Regenerate.
* libbfd.h: Regenerate.
* readelf.c: Add support for MSP430X architecture.
* readelf.exp: Expect -wi test to fail for the MSP430.
* config/tc-msp430.c: Add support for the MSP430X architecture.
Add code to insert a NOP instruction after any instruction that
might change the interrupt state.
Add support for the LARGE memory model.
Add code to initialise the .MSP430.attributes section.
* config/tc-msp430.h: Add support for the MSP430X architecture.
* doc/c-msp430.texi: Document the new -mL and -mN command line
options.
* NEWS: Mention support for the MSP430X architecture.
* gas/all/gas.exp: Skip the DIFF1 test for the MSP430.
Expect the FORWARD test to pass for the MSP430.
Skip the REDEF tests for the MSP430.
Expect the 930509A test to fail for the MSP430.
* gas/all/sleb128-4.d: Skip for the MSP430.
* gas/elf/elf.exp: Set target_machine to msp430 for the MSP430.
Skip the EHOPT0 test for the MSP430.
Skip the REDEF and EQU-RELOC tests for the MSP430.
* gas/elf/section2.e-msp430: New file.
* gas/lns/lns-big-delta.d: Remove expectation of 20-bit
addresses.
* gas/lns/lns.exp: Use alternate LNS COMMON test for the MSP430.
* gas/msp430/msp430x.s: New test.
* gas/msp430/msp430x.d: Expected disassembly.
* gas/msp430/msp430.exp: Run new test.
* gas/msp430/opcode.d: Update expected disassembly.
* msp430.h: Add MSP430X relocs.
Add some more MSP430 machine numbers.
Add values used by .MSP430.attributes section.
* msp430.h: Add patterns for MSP430X instructions.
* Makefile.am: Add emsp430X.c
* Makefine.in: Regenerate.
* configure.tgt (msp430): Add msp430X emulation.
* ldmain.c (multiple_definition): Only disable relaxation if it
was enabled by the user.
* ldmain.h (RELAXATION_ENABLED_BY_USER): New macro.
* emulparams/msp430all.sh: Add support for MSP430X.
* emultempl/generic.em: (before_parse): Enable relaxation for the
MSP430.
* scripttempl/msp430.sc: Reorganize sections. Add .rodata
section.
* scripttempl/msp430_3.sc: Likewise.
* NEWS: Mention support for MSP430X.
* ld-elf/flags1.d: Expect this test to pass on the MSP430.
* ld-elf/init-fini-arrays.d: Expect this test to fail on the
MSP430.
* ld-elf/merge.d: Expect this test to pass on the MSP430.
* ld-elf/sec64k.exp: Skip these tests for the MSP430.
* ld-gc/pr13683.d: Expect this test to fail on the MSP430.
* ld-srec/srec.exp: Expect these tests to fail on the MSP430.
* ld-undefined/undefined.exp: Expect the UNDEFINED LINE test to
fail on the MSP430.
* msp430-dis.c: Add support for MSP430X instructions.
* config/tc-msp430.c (msp430_operands): Undo last changes. Instead...
(msp430_relax_frag): add a guard check to ensure that final fr_subtype
has been reached.
* config/tc-msp430.c (msp430_enable_relax): New flag.
(msp430_enable_polys): Likewise.
(OPTION_RELAX): New option.
(OPTION_POLYMORPHS): Likewise.
(md_longopts): New long options.
(md_show_usage): Updated.
(md_parse_option): Add new options handler.
(msp430_operands): Add check if polymorph insns are enabled.
(msp430_force_relocation_local): New function.
(md_apply_fix): Now delete relocs according to new flags combination.
(msp430_relax_frag): Convert long branches to short branches only if
flag msp430_enable_relax is set.
* config/tc-msp430.h (TC_FORCE_RELOCATION_LOCAL): Defined.
(msp430_force_relocation_local): Likewise.
* doc/c-msp430.texi: Describe new options.
