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Kevin Buettner 3d8efabf21 msp430: Set DWARF2_ADDR_SIZE to 4. 
This change makes gas's notion of the msp430 dwarf2 address size match
that of gcc and gdb.  This is needed so that the format of addresses
generated for DW_LNE_set_address in .debug_line will match the address
size for the compilation unit.

In gcc/config/msp430/msp430.h, it's set to 4:

  #define	DWARF2_ADDR_SIZE			4

Likewise in gdb/msp430-tdep.c:

  set_gdbarch_dwarf2_addr_size (gdbarch, 4);

(As far as I can tell, however, GDB doesn't use this value when decoding
.debug_line.  Instead, GDB uses the Pointer Size from the compilation
unit.)

readelf is able to seamlessly handle mismatches between these various
sizes by using the size of the DW_LNE_set_address instruction to
determine the address size.  Another way to fix this problem is to
make GDB behave in a similar manner.  In my opinion, GDB should detect
and inform the user about these mismatches; it's not clear to me if
it's correct for GDB to go ahead and read the address anyway when a
size mismatch is detected.

Without this change, addresses in .debug_line are encoded in two bytes
for some multilibs.  When GDB reads the address for
DW_LNE_set_address, it uses the pointer size provided by the CU.  When
these values don't match, GDB reads the wrong number of bytes.  In the
cases that I've looked at, GDB is reading 4 bytes from a 2 byte
container, which results in a garbage address.  GDB discards lines
which have a bogus address; the end result is that GDB records no line
number information for CUs which have a mismatch between the address
size (from the CU) and the format of the address used by
DW_LNE_set_address.

gas/ChangeLog:

	* config/tc-msp430.h (DWARF2_ADDR_SIZE): Set to 4.
2016-02-03 09:21:51 -07:00

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2016-02-03 Kevin Buettner <kevinb@redhat.com>
* config/tc-msp430.h (DWARF2_ADDR_SIZE): Set to 4.
2016-02-03 H.J. Lu <hongjiu.lu@intel.com>
* NEWS: Mention new command line option -mfence-as-lock-add=yes
for x86 target.
2016-02-03 H.J. Lu <hongjiu.lu@intel.com>
* NEWS: Remove duplicated marker for 2.26.
2016-02-02 Renlin Li <renlin.li@arm.com>
* testsuite/gas/arm/thumb2_it_search.d: Skip non-elf targets.
2016-02-02 Andrew Burgess <andrew.burgess@embecosm.com>
* testsuite/gas/ip2k/allinsn.d: New file.
* testsuite/gas/ip2k/allinsn.s: New file.
* testsuite/gas/ip2k/ip2k-allinsn.exp: New file.
2016-02-02 Andrew Burgess <andrew.burgess@embecosm.com>
* testsuite/gas/epiphany/addr-syntax.d: Add explicit 0 offset to
some load instructions.
* testsuite/gas/epiphany/allinsn.d: Likewise.
* testsuite/gas/epiphany/regression.d: Likewise.
2016-02-02 Andrew Burgess <andrew.burgess@embecosm.com>
* testsuite/gas/epiphany/addr-syntax.d: Remove unneeded '.l'
suffixes from instruction mnemonics in expected output.
* testsuite/gas/epiphany/allinsn.d: Likewise.
* testsuite/gas/epiphany/regression.d: Likewise.
* testsuite/gas/epiphany/sample.d: Likewise.
2016-02-02 Andrew Burgess <andrew.burgess@embecosm.com>
* testsuite/gas/epiphany/addr-syntax.d: Update expected register
names.
* testsuite/gas/epiphany/allinsn.d: Likewise.
* testsuite/gas/epiphany/sample.d: Likewise.
2016-02-02 Andrew Burgess <andrew.burgess@embecosm.com>
* testsuite/gas/epiphany/sample.d: Update expected output.
2016-01-26 Claudiu Zissulescu <claziss@synopsys.com>
* config/tc-arc.c (md_apply_fix): Allow addendum.
(arc_reloc_op): Allow complex expressions for tpoff.
(md_apply_fix): Handle resolved TLS local symbol.
* testsuite/gas/arc/tls-relocs1.d: New file.
* testsuite/gas/arc/tls-relocs1.s: Likewise.
2016-02-01 Loria <Loria@phantasia.org>
PR target/19311
* config/tc-arm.c (encode_arm_immediate): Recode to improve
efficiency and avoid an LLVM loop optimization bug.
2016-02-01 Nick Clifton <nickc@redhat.com>
* config/tc-microblaze.c (parse_imm): Fix compile time warning
message extending a negative 32-bit value into a larger signed
value on a 32-bit host.
2016-01-29 H.J. Lu <hongjiu.lu@intel.com>
PR gas/19532
* configure.ac (compressed_debug_sections): Replace == with =.
* configure: Regenerated.
2016-01-29 Andrew Senkevich <andrew.senkevich@intel.com>
H.J. Lu <hongjiu.lu@intel.com>
* config/tc-i386.c (avoid_fence): New.
(output_insn): Encode as lock addl $0x0, (%{r,e}sp) if avoid_fence
is true.
(OPTION_FENCE_AS_LOCK_ADD): New.
(md_longopts): Add -mfence-as-lock-add.
(md_parse_option): Handle -mfence-as-lock-add.
(md_show_usage): Add -mfence-as-lock-add=[no|yes].
* doc/c-i386.texi (-mfence-as-lock-add): Document.
* testsuite/gas/i386/i386.exp: Run new tests.
* testsuite/gas/i386/fence-as-lock-add.s: New.
* testsuite/gas/i386/fence-as-lock-add-yes.d: Likewise.
* testsuite/gas/i386/fence-as-lock-add-no.d: Likewise.
* testsuite/gas/i386/x86-64-fence-as-lock-add-yes.d: Likewise.
* testsuite/gas/i386/x86-64-fence-as-lock-add-no.d: Likewise.
2016-01-27 H.J. Lu <hongjiu.lu@intel.com>
* configure.ac (compressed_debug_sections): Remove trailing `]'.
* configure: Regenerated.
2016-01-25 H.J. Lu <hongjiu.lu@intel.com>
* config/tc-i386.c (OPTION_OMIT_LOCK_PREFIX): Renamed to ...
(OPTION_MOMIT_LOCK_PREFIX): This.
(md_longopts): Updated.
(md_parse_option): Likewise.
2016-01-25 Catherine Moore <clm@codesourcery.com>
* config/mips/tc-mips.c (md_begin): Avoid gp-relative addressing
if abicalls are in effect.
* testsuite/gas/mips/sdata-gp.s: New test.
* testsuite/gas/mips/sdata-gp.d: New expected output
* testsuite/gas/mips/mips.exp: Run new test.
2016-01-25 Renlin Li <renlin.li@arm.com>
* testsuite/gas/arm/thumb2_it_search.d: New.
* testsuite/gas/arm/thumb2_it_search.s: New.
2016-01-21 Nick Clifton <nickc@redhat.com>
PR gas/19454
* testsuite/gas/arm/mapshort-elf.d: Fix expected output to cope
with arm-netbsdelf target.
* testsuite/gas/arm/blx-bl-convert.d: Skip for netbsdelf.
2016-01-20 Nick Clifton <nickc@redhat.com>
PR 19456
* testsuite/gas/arm/weakdef-1.d: Skip for VxWorks.
* testsuite/gas/arm/blx-bl-convert.d
* testsuite/gas/arm/plt-1.d: Likewise.
* testsuite/gas/arm/reloc-bad.d: Likewise.
* testsuite/gas/arm/thumb-w-good.d: Likewise.
* testsuite/gas/arm/thumb2_pool.d: Likewise.
* testsuite/gas/arm/ldconst.d: Adjust so that it works with VxWorks
* testsuite/gas/arm/tls_vxworks.d: Update expected output.
PR 19499
* doc/as.texinfo (Errors): Correct documentation describing the
interaction of .file and .line with warning and error messages.
PR 19458
* testsuite/gas/arm/armv8_2-a.d: Skip for COFF based targets.
* testsuite/gas/arm/archv8m-main.d: Likewise.
* testsuite/gas/arm/archv8m-base.d: Likewise.
2016-01-20 Matthew Wahab <matthew.wahab@arm.com>
* testsuite/gas/aarch64/armv8_2-a-illegal.d: New.
* testsuite/gas/aarch64/armv8_2-a-illegal.l: New.
* testsuite/gas/aarch64/armv8_2-a-illegal.s: New.
2016-01-20 Mickael Guene <mickael.guene@st.com>
Terry Guo <terry.guo@arm.com>
* config/obj-elf.c (obj_elf_change_section) : Allow arm section with
SHF_ARM_NOREAD section flag.
* config/tc-arm.h (md_elf_section_letter) : Implement this hook to
handle letter 'y'.
(arm_elf_section_letter) : Declare it.
* config/tc-arm.c (arm_elf_section_letter): Handle letter 'y' to set
SHF_ARM_NOREAD section flag.
* doc/c-arm.texi (ARM section attribute): Document the 'y' attribute.
* testsuite/gas/arm/section-execute-only.s: New test case.
* testsuite/gas/arm/section-execute-only.d: Expected output.
2016-01-18 Maciej W. Rozycki <macro@imgtec.com>
* config/tc-mips.c (micromips_insn_length): Remove the mention
of 48-bit microMIPS instructions.
2016-01-18 Alan Modra <amodra@gmail.com>
* configure: Regenerate.
2016-01-17 Alan Modra <amodra@gmail.com>
* configure: Regenerate.
2016-01-17 Alan Modra <amodra@gmail.com>
* testsuite/gas/cfi/cfi.exp: Exclude m68hc11/12 from m68k test.
2016-01-14 Nick Clifton <nickc@redhat.com>
* testsuite/gas/rl78/sp-relative-movw.s: New test.
* testsuite/gas/rl78/sp-relative-movw.d: Expected disassembly.
* testsuite/gas/rl78/rl78.exp: Run the new test.
2016-01-14 Matthew Wahab <matthew.wahab@arm.com>
* testsuite/gas/aarch64/illegal-sysreg-2.l: New.
* testsuite/gas/aarch64/illegal-sysreg-2.d: New.
2016-01-13 Maciej W. Rozycki <macro@imgtec.com>
* config/tc-nios2.c (output_movia): Preset `code' to 0.
2016-01-13 Yoshinori Sato <ysato@users.sourceforge.jp>
* config/tc-h8300.c (get_operand): Remove spurious condition in
test for closing parenthesis.
2016-01-12 Matthew Wahab <matthew.wahab@arm.com>
* config/tc-arm.c (arm_ext_v8_2): New.
(insns): Add "esb".
* testsuite/gas/arm/armv8_2-a.d: New.
* testsuite/gas/arm/armv8_2-a.s: New.
2016-01-12 Alan Modra <amodra@gmail.com>
* testsuite/gas/ppc/vsx3.d: Accept nop padding.
2016-01-11 Peter Bergner <bergner@vnet.ibm.com>
* testsuite/gas/ppc/power9.d <xscmpnedp, xvcmpnedp, xvcmpnedp.,
xvcmpnesp, xvcmpnesp.>: Delete tests.
* testsuite/gas/ppc/power9.s: Likewise.
* testsuite/gas/ppc/vsx3.d: Likewise.
* testsuite/gas/ppc/vsx3.s: Likewise.
2016-01-08 Andreas Schwab <schwab@linux-m68k.org>
PR gas/13050
* testsuite/gas/m68k/all.exp: Add tests p13050-1 and p13050-2.
* testsuite/gas/m68k/p13050-1.s: New file.
* testsuite/gas/m68k/p13050-2.d: New file.
* testsuite/gas/m68k/p13050-2.s: New file.
2016-01-06 Andrew Burgess <andrew.burgess@embecosm.com>
* testsuite/gas/arc/adc.d: Add 'R_' prefix to relocation names.
* testsuite/gas/arc/add.d: Likewise.
* testsuite/gas/arc/and.d: Likewise.
* testsuite/gas/arc/asl.d: Likewise.
* testsuite/gas/arc/asr.d: Likewise.
* testsuite/gas/arc/bic.d: Likewise.
* testsuite/gas/arc/extb.d: Likewise.
* testsuite/gas/arc/extw.d: Likewise.
* testsuite/gas/arc/j.d: Likewise.
* testsuite/gas/arc/jl.d: Likewise.
* testsuite/gas/arc/ld2.d: Likewise.
* testsuite/gas/arc/lsr.d: Likewise.
* testsuite/gas/arc/mov.d: Likewise.
* testsuite/gas/arc/or.d: Likewise.
* testsuite/gas/arc/pcl-relocs.d: Likewise.
* testsuite/gas/arc/pcrel-relocs.d: Likewise.
* testsuite/gas/arc/pic-relocs.d: Likewise.
* testsuite/gas/arc/plt-relocs.d: Likewise.
* testsuite/gas/arc/rlc.d: Likewise.
* testsuite/gas/arc/ror.d: Likewise.
* testsuite/gas/arc/rrc.d: Likewise.
* testsuite/gas/arc/sbc.d: Likewise.
* testsuite/gas/arc/sda-relocs.d: Likewise.
* testsuite/gas/arc/sda-relocs2.d: Likewise.
* testsuite/gas/arc/sexb.d: Likewise.
* testsuite/gas/arc/sexw.d: Likewise.
* testsuite/gas/arc/st.d: Likewise.
* testsuite/gas/arc/sub.d: Likewise.
* testsuite/gas/arc/tls-relocs.d: Likewise.
* testsuite/gas/arc/xor.d: Likewise.
2016-01-01 Alan Modra <amodra@gmail.com>
Update year range in copyright notice of all files.
For older changes see ChangeLog-2015 and testsuite/ChangeLog-2015
Copyright (C) 2016 Free Software Foundation, Inc.
Copying and distribution of this file, with or without modification,
are permitted in any medium without royalty provided the copyright
notice and this notice are preserved.
Local Variables:
mode: change-log
left-margin: 8
fill-column: 74
version-control: never
End:
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