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2020-02-03Change ints to bools around thread_info executing/resumedSimon Marchi10-30/+50
Switch thread_info::resumed to bool (thread_info::executing already is a bool), and try to change everything more or less related to that to consistently use true/false instead of 1/0. gdb/ChangeLog: * fork-child.c (gdb_startup_inferior): Use bool instead of int. * gdbthread.h (class thread_info) <resumed>: Likewise. * infrun.c (resume_1): Likewise. (proceed): Likewise. (infrun_thread_stop_requested): Likewise. (stop_all_threads): Likewise. (handle_inferior_event): Likewise. (restart_threads): Likewise. (finish_step_over): Likewise. (keep_going_stepped_thread): Likewise. * linux-nat.c (attach_proc_task_lwp_callback): Likewise. (linux_handle_extended_wait): Likewise. * record-btrace.c (get_thread_current_frame_id): Likewise. * record-full.c (record_full_wait_1): Likewise. * remote.c (remote_target::process_initial_stop_replies): Likewise. * target.c (target_resume): Likewise. * thread.c (set_running_thread): Likewise.
2020-02-04ubsan: d30v: negation of -2147483648Alan Modra4-3/+11
include/ * opcode/d30v.h (struct pd_reg): Make value field unsigned. opcodes/ * d30v-dis.c (print_insn): Make "val" and "opnum" unsigned.
2020-02-03gdb: fix powerpc disassembly testsRogerio Alves5-19/+27
This patch fixes test failures power8 and power9 caused by changes on opcodes: The dissasembler does not emit whitespace for instructions anymore (c2b1c2754526acff8aae2fe8f5a56c2dd11d0b7f) The dissasembler generates extended mnemonics for some instructions instead (aae9718e4d4e8d01dcee22684e82b000203d3e52) The ldmx instruction was removed. This instruction was never implemented (6fbc939cfdbdf02f205c20925583738b0f835e62) gdb/testsuite/ChangeLog: 2020-02-03 Rogerio A. Cardoso <rcardoso@linux.ibm.com> * gdb.arch/powerpc-power8.exp: Delete trailing whitespace of tbegin., tend. instructions. Replace bctar-, bctar+, bctarl-, bctarl+ extended mnemonics when avaliable by bgttar, bnstarl, blttar, bnetarl. * gdb.arch/powerpc-power8.s: Fix comments. Fix instructions binary for blttar, bnetarl. * gdb.arch/powerpc-power9.exp: Delete trailing whitespace of wait instruction. Delete ldmx test. * gdb.arch/powerpc-power9.s: Delete ldmx instruction.
2020-02-03Fixed gdb to print arrays with very high indexesAlok Kumar Sharma5-1/+74
In the function f77_print_array_1, the variable 'i' which holds the index is of datatype 'int', while bounds are of datatype LONGEST. Due to size of int being smaller than LONGEST, the variable 'i' stores incorrect values for high indexes (higher than max limit of int). Due to this issue in sources, two abnormal behaviors are seen while printing arrays with high indexes (please check array-bounds-high.f90) For high indexes with negative sign, gdb prints empty array even if the array has elements. (gdb) p arr $1 = () For high indexes with positive sign, gdb crashes. We have now changed the datatype of 'i' to LONGEST which is same as datatype of bounds. gdb/ChangeLog: * f-valprint.c (f77_print_array_1): Changed datatype of index variable to LONGEST from int to enable it to contain bound values correctly. gdb/testsuite/ChangeLog: * gdb.fortran/array-bounds-high.exp: New file. * gdb.fortran/array-bounds-high.f90: New file. Change-Id: Ie2dce9380a249e634e2684b9c90f225e104369b7
2020-02-04Automatic date update in version.inGDB Administrator1-1/+1
2020-02-03readelf: add missing newlines to error messagesAndreas Schwab2-6/+16
* readelf.c (dump_relocations, dump_relocations) (decode_arm_unwind_bytecode, process_dynamic_section) (get_symbol_visibility, get_alpha_symbol_other): Add newline to error message.
2020-02-03RISC-V/Linux/native: Determine FLEN dynamicallyMaciej W. Rozycki2-26/+97
Fix RISC-V native Linux support to handle a 64-bit FPU (FLEN == 64) with both RV32 and RV64 systems, which is a part of the current Linux ABI for hard-float systems, rather than assuming that (FLEN == XLEN) in target description determination and that (FLEN == 64) in register access. We can do better however and not rely on any particular value of FLEN and probe for it dynamically, by observing that the PTRACE_GETREGSET ptrace(2) call will only accept an exact regset size, and that will reflect FLEN. Therefore iterate over the call in target description determination with a geometrically increasing regset size until a match is marked by a successful ptrace(2) call completion or we run beyond the maximum size we can support. Update register accessors accordingly, using FLEN determined to size the buffer used for NT_PRSTATUS requests and then to exchange data with the regcache. Also handle a glibc bug where ELF_NFPREG is defined in terms of NFPREG, however NFPREG is nowhere defined. gdb/ * riscv-linux-nat.c [!NFPREG] (NFPREG): New macro. (supply_fpregset_regnum, fill_fpregset): Handle regset buffer offsets according to FLEN determined. (riscv_linux_nat_target::read_description): Determine FLEN dynamically. (riscv_linux_nat_target::fetch_registers): Size regset buffer according to FLEN determined. (riscv_linux_nat_target::store_registers): Likewise.
2020-02-03Fix compilation error with musl in gdb/testsuite/gdb.base/fileio.cLukas Durfina2-2/+6
Musl is giving warnings about these includes in this way: warning: #warning redirecting incorrect #include <sys/errno.h> to <errno.h> warning: #warning redirecting incorrect #include <sys/fcntl.h> to <fcntl.h> gdb/testsuite/Changelog: * gdb.base/fileio.c: Remove #include of <sys/errno.h>. Replace #include of <sys/fcntl.h> by <fcntl.h>.
2020-02-03binutils: drop redundant 'program_name' definition (-fno-common)Sergei Trofimovich4-6/+6
* coffdump.c (program_name): Drop redundant definition. * srconv.c (program_name): Likewise * sysdump.c (program_name): Likewise Signed-off-by: Sergei Trofimovich <siarheit@google.com>
2020-02-03ubsan: m32c: left shift of negative valueAlan Modra4-6/+14
cpu/ * m32c.cpu (f-dsp-64-s16): Mask before shifting signed value. opcodes/ * m32c-ibld.c: Regenerate.
2020-02-02section.c: Fix typo in comments (withe -> with)H.J. Lu3-2/+7
* bfd-in2.h: Regenerated. * section.c (SEC_ASSEMBLER_SECTION_ID): Fix a typo in comments.
2020-02-02ELF: Add support for unique section ID to assemblerH.J. Lu34-64/+551
Clang's integrated assembler supports multiple section with the same name: .section .text,"ax",@progbits,unique,1 nop .section .text,"ax",@progbits,unique,2 nop "unique,N" assigns the number, N, as the section ID, to a section. The valid values of the section ID are between 0 and 4294967295. It can be used to distinguish different sections with the same section name. This is useful with -fno-unique-section-names -ffunction-sections. -ffunction-sections by default generates .text.foo, .text.bar, etc. Using the same string can save lots of space in .strtab. This patch adds section_id to bfd_section and reuses the linker internal bit in BFD section flags, SEC_LINKER_CREATED, for assmebler internal use to mark valid section_id. It also updates objdump to compare section pointers if 2 sections comes from the same file since 2 different sections can have the same section name. bfd/ PR gas/25380 * bfd-in2.h: Regenerated. * ecoff.c (bfd_debug_section): Add section_id. * section.c (bfd_section): Add section_id. (SEC_ASSEMBLER_SECTION_ID): New. (BFD_FAKE_SECTION): Add section_id. binutils/ PR gas/25380 * objdump.c (sym_ok): Return FALSE if 2 sections are in the same file with different section pointers. gas/ PR gas/25380 * config/obj-elf.c (section_match): Removed. (get_section): Also match SEC_ASSEMBLER_SECTION_ID and section_id. (obj_elf_change_section): Replace info and group_name arguments with match_p. Also update the section ID and flags from match_p. (obj_elf_section): Handle "unique,N". Update call to obj_elf_change_section. * config/obj-elf.h (elf_section_match): New. (obj_elf_change_section): Updated. * config/tc-arm.c (start_unwind_section): Update call to obj_elf_change_section. * config/tc-ia64.c (obj_elf_vms_common): Likewise. * config/tc-microblaze.c (microblaze_s_data): Likewise. (microblaze_s_sdata): Likewise. (microblaze_s_rdata): Likewise. (microblaze_s_bss): Likewise. * config/tc-mips.c (s_change_section): Likewise. * config/tc-msp430.c (msp430_profiler): Likewise. * config/tc-rx.c (parse_rx_section): Likewise. * config/tc-tic6x.c (tic6x_start_unwind_section): Likewise. * doc/as.texi: Document "unique,N" in .section directive. * testsuite/gas/elf/elf.exp: Run "unique,N" tests. * testsuite/gas/elf/section15.d: New file. * testsuite/gas/elf/section15.s: Likewise. * testsuite/gas/elf/section16.s: Likewise. * testsuite/gas/elf/section16a.d: Likewise. * testsuite/gas/elf/section16b.d: Likewise. * testsuite/gas/elf/section17.d: Likewise. * testsuite/gas/elf/section17.l: Likewise. * testsuite/gas/elf/section17.s: Likewise. * testsuite/gas/i386/unique.d: Likewise. * testsuite/gas/i386/unique.s: Likewise. * testsuite/gas/i386/x86-64-unique.d: Likewise. * testsuite/gas/i386/i386.exp: Run unique and x86-64-unique. ld/ PR gas/25380 * testsuite/ld-i386/pr22001-1c.S: Use "unique,N" in .section directives. * testsuite/ld-i386/tls-gd1.S: Likewise. * testsuite/ld-x86-64/pr21481b.S: Likewise.
2020-02-03Automatic date update in version.inGDB Administrator1-1/+1
2020-02-02elf/section13.s: Replace @nobits with %nobitsH.J. Lu2-1/+5
* testsuite/gas/elf/section13.s: Replace @nobits with %nobits.
2020-02-01moxie: don't force big-endian modeGitea2-2/+4
2020-02-02Automatic date update in version.inGDB Administrator1-1/+1
2020-02-01Update release making documentationNick Clifton2-20/+48
2020-02-01Move pending obsolete targets onto the definitely obsolete listNick Clifton2-1/+6
2020-02-01ubsan: frv: left shift of negative valueAlan Modra4-7/+16
More non-bugs flagged by ubsan, unless you happen to be compiling for a 1's complement host. cpu/ * frv.cpu (f-u12): Multiply rather than left shift signed values. (f-label16, f-label24): Likewise. opcodes/ * frv-ibld.c: Regenerate.
2020-02-01gdb: Do not print empty-group regs when printing general onesShahab Vahedi2-5/+13
When the command "info registers" (same as "info registers general"), is issued, _all_ the registers from a tdesc XML are printed. This includes the registers with empty register groups (set as "") which are supposed to be only printed by "info registers all" (or "info all-registers"). This bug got introduced after all the overhauls that the tdesc_register_in_reggroup_p() went through. You can see that the logic of tdesc_register_in_reggroup_p() did NOT remain the same after all those changes: git difftool c9c895b9666..HEAD -- gdb/target-descriptions.c With the current implementation, when the reg->group is an empty string, this function returns -1, while in the working revision (c9c895b9666), it returned 0. This patch makes sure that the 0 is returned again. The old implementation of tdesc_register_in_reggroup_p() returned -1 when "reggroup" was set to "all_reggroups" at line 4 below: 1 tdesc_register_reggroup_p (...) 2 { 3 ... 4 ret = tdesc_register_in_reggroup_p (gdbarch, regno, reggroup); 5 if (ret != -1) 6 return ret; 7 8 return default_register_reggroup_p (gdbarch, regno, reggroup); 9 } As a result, the execution continued at line 8 and the default_register_reggroup_p(..., reggroup=all_reggroups) would return 1. However, with the current implementation of tdesc_register_in_reggroup_p() that allows checking against any arbitrary group name, it returns 0 when comparing the "reg->group" against the string "all" which is the group name for "all_reggroups". I have added a special check to cover this case and "info all-registers" works as expected. gdb/ChangeLog: * target-descriptions.c (tdesc_register_in_reggroup_p): Return 0 when reg->group is empty and reggroup is not. Change-Id: I9eaf9d7fb36410ed5684ae652fe4756b1b2e61a3
2020-02-01Automatic date update in version.inGDB Administrator1-1/+1
2020-02-01[gdb/testsuite] Fix typo in gdb.server/server-kill-python.expTom de Vries2-1/+5
Fix typo '$gdb_tst_name' -> '$gdb_test_name'. gdb/testsuite/ChangeLog: 2020-02-01 Tom de Vries <tdevries@suse.de> * gdb.server/server-kill-python.exp: Fix $gdb_tst_name typo. Change-Id: Iad050dab0e8aad2f2692e54e398021558250f1ac
2020-01-31nios2: Add BFD support for GOT-relative DW_EH_PE_datarel encodingsSandra Loosemore2-0/+6
There's already existing logic to handle this on other targets, so this patch just makes nios2 use it. 2020-01-31 Sandra Loosemore <sandra@codesourcery.com> bfd/ * elf-eh-frame.c (_bfd_elf_write_section_eh_frame): DW_EH_PE_datarel encodings are relative to the GOT on nios2, too.
2020-01-31nios2: recognize %gotoff relocation in assemblerSandra Loosemore2-10/+35
The nios2 ABI documentation lists %gotoff as assembler syntax for the R_NIOS2_GOTOFF relocation, used to represent a 32-bit GOT-relative offset in data sections. This was previously unimplemented in GAS. 2020-01-31 Sandra Loosemore <sandra@codesourcery.com> gas/ * config/tc-nios2.c (nios2_cons): Handle %gotoff as well as %tls_ldo.
2020-01-31Add missing ChangeLog for last patchAndre Vieira1-0/+8
2020-01-31arm: PR gas/25472 Enable DSP instructions with +mveAndre Vieira2-6/+148
We noticed +mve was not enabling DSP instructions as it should, reported in PR 25472. The MVE architecture extension for Armv8.1-M Mainline implies DSP extensions. This patch reflects that in the '+mve' command line option. gas/ChangeLog: 2020-01-31 Andre Vieira <andre.simoesdiasvieira@arm.com> PR gas/25472 * config/tc-arm.c (armv8m_main_ext_table): Refactored +dsp adding. (armv8_1m_main_ext_table): Refactored +dsp adding and enabled dsp for +mve. * testsuite/gas/arm/mve_dsp.d: New test.
2020-01-31Fix compile time build problem building the s390 assembler.Nick Clifton2-1/+6
* config/tc-s390.c (s390_elf_suffix): Return ELF_SUFFIX_NONE rather than BFD_RELOC_NONE.
2020-01-31[ARM]: Add support for vldmia/vldmdb/vstmia/vstmdb instructions in MVE.Srinath Parvathaneni4-4/+75
This patch adds support for assembly instructions vldmia, vldmdb, vstmia and vstmdb in MVE. This instructions are already supported for Armv8-M Floating-point Extension. gas/ChangeLog: 2020-01-31 Srinath Parvathaneni <srinath.parvathaneni@arm.com> * config/tc-arm.c (fldmias): Moved inside "THUMB_VARIANT & arm_ext_v6t2" to support VLDMIA instruction for MVE. (fldmdbs): Moved inside "THUMB_VARIANT & arm_ext_v6t2" to support VLDMDB instruction for MVE. (fstmias): Moved inside "THUMB_VARIANT & arm_ext_v6t2" to support VSTMIA instruction for MVE. (fstmdbs): Moved inside "THUMB_VARIANT & arm_ext_v6t2" to support VSTMDB instruction for MVE. * testsuite/gas/arm/mve-ldst.d: New test. * testsuite/gas/arm/mve-ldst.s: Likewise.
2020-01-31Updated translations for some of the binutils sub-directoriesNick Clifton5-7835/+9961
2020-01-31x86: replace EXxmm_mdq by EXVexWdqScalarJan Beulich3-27/+29
There's no need to have two operand specifiers / enumerators for the same purpose. This then renders xmm_mdq_mode unused.
2020-01-31x86: drop unused EXVexWdq / vex_w_dq_modeJan Beulich2-7/+10
2020-01-31aarch64: Fix MOVPRFX markup for bf16 conversionsRichard Sandiford8-4/+102
bfcvt converts a .S input to a .H output, so any predicated movprfx needs to operate on .S rather than .H. In common with SVE2 narrowing top operations, bfcvtnt doesn't accept movprfx. 2020-01-31 Richard Sandiford <richard.sandiford@arm.com> opcodes/ * aarch64-tbl.h (aarch64_opcode): Set C_MAX_ELEM for SVE bfcvt. Remove C_SCAN_MOVPRFX for SVE bfcvtnt. gas/ * testsuite/gas/aarch64/sve-bfloat-movprfx.s: Use .h rather than .s for the movprfx. * testsuite/gas/aarch64/sve-bfloat-movprfx.d: Update accordingly. * testsuite/gas/aarch64/sve-movprfx_28.d, * testsuite/gas/aarch64/sve-movprfx_28.l, * testsuite/gas/aarch64/sve-movprfx_28.s: New test.
2020-01-31Fix ravenscar-thread.c for multi-targetTom Tromey2-1/+7
ravenscar-thread.c needed a change to adapt to multi-target: ravenscar_thread_target::mourn_inferior called the mourn_inferior method on the target beneat -- but when the target beneath was the remote target, this resulted in the ravenscar target being deleted. Switching the order of the calls to unpush_target and the beneath's mourn_inferior fixes this problem. gdb/ChangeLog 2020-01-31 Tom Tromey <tromey@adacore.com> * ravenscar-thread.c (ravenscar_thread_target::mourn_inferior): Call beneath target's mourn_inferior after unpushing. Change-Id: Ia80380515c403adc40505a6b3420c9cb35754370
2020-01-31gdb/tui: Disassembler scrolling of very small programsAndrew Burgess5-1/+87
In TUI mode, if the disassembly output for the program is less than one screen long, then currently if the user scrolls down until on the last assembly instruction is displayed and then tries to scroll up using Page-Up, the display doesn't update - they are stuck viewing the last line. If the user tries to scroll up using the Up-Arrow, then the display scrolls normally. What is happening is on the Page-Up we ask GDB to scroll backward the same number of lines as the height of the TUI ASM window. The back scanner, which looks for a good place to start disassembling, fails to find a starting address which will provide the requested number of new lines before we get back to the original starting address (which is not surprising, our whole program contains less than a screen height of instructions), as a result the back scanner gives up and returns the original starting address. When we scroll with Up-Arrow we only ask the back scanner to find 1 new instruction, which it manages to do, so this scroll works. The solution here is, when we fail to find enough instructions, to return the lowest address we did manage to find. This will ensure we jump to the lowest possible address in the disassembly output. gdb/ChangeLog: PR tui/9765 * tui/tui-disasm.c (tui_find_disassembly_address): If we don't have enough lines to fill the screen, still return the lowest address we found. gdb/testsuite/ChangeLog: PR tui/9765 * gdb.tui/tui-layout-asm-short-prog.S: New file. * gdb.tui/tui-layout-asm-short-prog.exp: New file. Change-Id: I6a6a7972c68a0559e9717fd8d82870b669a40af3
2020-01-31gdb/tui: Update help text for scroll commandsAndrew Burgess2-4/+17
GDB has some commands ('+', '-', '<', and '>') for scrolling the SRC and ASM TUI windows from the CMD window, however the help text for these commands lists the arguments in the wrong order. This commit updates the help text to match how GDB actually works, and also extends the text to describe what the arguments mean, and what the defaults are. There should be no change in GDBs functionality after this commit. gdb/ChangeLog: * tui/tui-win.c (_initialize_tui_win): Update help text for '+', '-', '<', and '>' commands. Change-Id: Ib2624891de1f4ba983838822206304e4c3ed982e
2020-01-31Tidy bfd.potAlan Modra3-74/+54
This patch removes the leak of Nick's source directory into bfd.pot, and emits #line for some generated files so that those files aren't referenced by comments in the .pot file. You can see both of these effects in the following diff. I've also removed use of an unnecessary temp file in the make rules. @@ -92,10 +92,8 @@ msgstr "" #: elf64-nfp.c:238 elf64-ppc.c:1014 elf64-ppc.c:1349 elf64-ppc.c:1358 #: elf64-s390.c:328 elf64-s390.c:378 elf64-x86-64.c:285 elfn32-mips.c:3786 #: elfxx-ia64.c:324 elfxx-riscv.c:955 elfxx-sparc.c:589 elfxx-sparc.c:639 -#: elfxx-tilegx.c:912 elfxx-tilegx.c:952 -#: /work/sources/binutils/current/bfd/elfnn-aarch64.c:2215 -#: /work/sources/binutils/current/bfd/elfnn-aarch64.c:2313 elf32-ia64.c:214 -#: elf32-ia64.c:3862 elf64-ia64.c:214 elf64-ia64.c:3862 +#: elfxx-tilegx.c:912 elfxx-tilegx.c:952 elfnn-aarch64.c:2215 +#: elfnn-aarch64.c:2313 elfnn-ia64.c:214 elfnn-ia64.c:3862 #, c-format msgid "%pB: unsupported relocation type %#x" msgstr "" * Makefile.am (elf32-target.h, elf64-target.h): Don't use a temp file. Use $< and $@ in rules. (elf32-aarch64.c, elf64-aarch64.c): Likewise. (elf32-ia64.c, elf64-ia64.c): Likewise. (elf32-riscv.c, elf64-riscv.c): Likewise. (peigen.c, pepigen.c, pex64igen.c): Likewise. (elf32-aarch64.c, elf64-aarch64.c): Don't emit $srcdir on #line. (elf32-riscv.c, elf64-riscv.c): Likewise, and use $(SED). (elf32-ia64.c, elf64-ia64.c): Do emit #line. (peigen.c, pepigen.c, pex64igen.c): Likewise. * Makefile.in: Regenerate.
2020-01-31OOM in setup_groupAlan Modra2-3/+10
We alloc, seek and read using section sizes in object files. Fuzzed objects can have silly sizes, but that's OK if the system supports memory over-commit. The read fails because we hit EOF and that usually results in a graceful exit. But if we memset before the read then the invalid size results in attempting to write to a huge number of memory pages, and an eventual Out Of Memory after probably swapping like crazy. So don't memset. There really isn't a need to clear the section contents anyway. All bytes are written with a good object file by the read and following loop converting section index in target order to ELF section header pointer, and the only untidy bytes are the 4 bytes past the group flags when pointers are 8 bytes. Those don't matter but the patch clears them for anyone poking around in a debugger. On error paths it's as good to free section contents as it is to clear them. Noticed when looking at PR4110 fourth test case. PR 4110 * elf.c (setup_group): Don't clear entire section contents, just the padding after group flags. Release alloc'd memory after a seek or read failure.
2020-01-31Automatic date update in version.inGDB Administrator1-1/+1
2020-01-30x86: prevent undue use of GOT32X and alike relocationsJan Beulich5-29/+68
Comparison of i.tm.base_opcode against particular but not sufficiently specific values needs to be accompanied by other qualification. Exclude VEX and alike encodings here, and also exclude all forms of prefixes explicitly specified in the opcodes table. While using @GOT with such insns may not be very useful, it also isn't with e.g. ADC and SBB, yet these get explicitly listed in comments as supported.
2020-01-30ld/doc: drop blank between @option and braceJan Beulich2-1/+5
Commit 9e7028aa1e78 ("PowerPC64 __tls_get_addr_desc") introduced a use of @option which apparently newer makeinfo tolerates, but older ones reject. Drop the unnecessary (a per all other uses of @option) blank.
2020-01-30ubsan: m32c: left shift of negative valueAlan Modra4-30/+46
More nonsense fixing "bugs" with left shifts of signed values. Yes, the C standard does say this is undefined (and right shifts of signed values are implementation defined BTW) but in practice there is no problem with current machines. 1's complement is a thing of the past. cpu/ * m32c.cpu (f-src32-rn-unprefixed-QI): Shift before inverting. (f-src32-rn-prefixed-QI, f-dst32-rn-unprefixed-QI): Likewise. (f-dst32-rn-prefixed-QI): Likewise. (f-dsp-32-s32): Mask before shifting left. (f-dsp-48-u32, f-dsp-48-s32): Likewise. (f-bitbase32-16-s11-unprefixed): Multiply signed field rather than shifting left. (f-bitbase32-24-s11-prefixed, f-bitbase32-24-s19-prefixed): Likewise. (h-gr-SI): Mask before shifting. opcodes/ * m32c-ibld.c: Regenerate.
2020-01-30Identify reproducible builds in 'objdump -p' output for PE filesJon Turney2-5/+86
These are produced by MSVC when the '/Brepro' flag is used. To quote from the PE specification [1]: "The presence of an entry of type IMAGE_DEBUG_TYPE_REPRO indicates the PE file is built in a way to achieve determinism or reproducibility. If the input does not change, the output PE file is guaranteed to be bit-for-bit identical no matter when or where the PE is produced. Various date/time stamp fields in the PE file are filled with part or all the bits from a calculated hash value that uses PE file content as input, and therefore no longer represent the actual date and time when a PE file or related specific data within the PE is produced. The raw data of this debug entry may be empty, or may contain a calculated hash value preceded by a four-byte value that represents the hash value length." [1] https://docs.microsoft.com/en-us/windows/win32/debug/pe-format bfd/ChangeLog: 2020-01-16 Jon Turney <jon.turney@dronecode.org.uk> * peXXigen.c (pe_is_repro): New function. (_bfd_XX_print_private_bfd_data_common): Note timestamp is actually a build hash if PE_IMAGE_DEBUG_TYPE_REPRO is present.
2020-01-30Add some new PE_IMAGE_DEBUG_TYPE valuesJon Turney4-1/+22
IMAGE_DEBUG_TYPE_REPRO is defined in the latest version of the PE specification [1]. The others are defined in Windows SDK headers and/or reported by DUMPBIN. [1] https://docs.microsoft.com/en-us/windows/win32/debug/pe-format bfd/ChangeLog: 2020-01-16 Jon Turney <jon.turney@dronecode.org.uk> * peXXigen.c (debug_type_names): Add names for new debug data type values. include/ChangeLog: 2020-01-16 Jon Turney <jon.turney@dronecode.org.uk> * coff/internal.h (PE_IMAGE_DEBUG_TYPE_VC_FEATURE) (PE_IMAGE_DEBUG_TYPE_POGO, PE_IMAGE_DEBUG_TYPE_ILTCG) (PE_IMAGE_DEBUG_TYPE_MPX, PE_IMAGE_DEBUG_TYPE_REPRO): Add.
2020-01-30Bugfixes for pe_print_debugdata()Jon Turney2-3/+10
Use a separate iteration variable for inner loop (:blush:). This generally prevented any debug directory entries after a IMAGE_DEBUG_TYPE_CODEVIEW entry from being reported. Don't leak the memory allocated for the section containing the debug directory. bfd/ChangeLog: 2020-01-16 Jon Turney <jon.turney@dronecode.org.uk> * peXXigen.c (pe_print_debugdata): Fix the iteration variable for inner loop. Fix a memory leak.
2020-01-30cpu,opcodes,gas: fix neg and neg32 instructions in BPFJose E. Marchesi9-9/+26
This patch fixes the neg/neg32 BPF instructions, which have K (=0) instead of X (=1) in their header source bit, despite operating on registes. cpu/ChangeLog: 2020-01-30 Jose E. Marchesi <jose.marchesi@oracle.com> * bpf.cpu (define-alu-insn-un): The unary BPF instructions (neg and neg32) use OP_SRC_K even if they operate only in registers. opcodes/ChangeLog: 2020-01-30 Jose E. Marchesi <jose.marchesi@oracle.com> * bpf-opc.c: Regenerate. gas/ChangeLog: 2020-01-30 Jose E. Marchesi <jose.marchesi@oracle.com> * testsuite/gas/bpf/alu.d: Update expected opcode for `neg'. * testsuite/gas/bpf/alu-be.d: Likewise. * testsuite/gas/bpf/alu32.d: Likewise for `neg32'. * testsuite/gas/bpf/alu32-be.d: Likewise.
2020-01-30x86-64: honor vendor specifics for near RETJan Beulich12-28/+117
While vendors agree about default operand size (64 bits) and hence unavilability of a 32-bit form, AMD honors a 16-bit operand size override (0x66) while Intel doesn't.
2020-01-30x86-64: also diagnose far returns / IRET with ambiguous operand sizeJan Beulich17-46/+134
Other than near returns these default to 32-bit operand size, and hence it isn't really unlikely that 64-bit forms are meant. Hence these should have disambiguating suffixes. In Intel mode, however, don't error in these cases unconditionally - MASM accepts these without suffix _and_ without warning.
2020-01-30x86: drop further pointless/bogus DefaultSizeJan Beulich5-22/+34
- 64-bit CALL permitting just a single operand size doesn't need it. - FLDENV et al should never have had it. It remains suspicious that a number of 64-bit only insns continue to have the attribute, despite this being intended for .code16gcc handling only.
2020-01-30ubsan: tic4x: left shift cannot be represented in type 'int'Alan Modra2-1/+5
The patch also fixes a case where libopcodes built for a 64-bit bfd_vma may print different results to libopcodes built for a 32-bit bfd_vma. * tic4x-dis.c (tic4x_dp): Make unsigned.
2020-01-30Remove need to clear obj_coff_keep_syms in coff object_pAlan Modra3-15/+26
* coffgen.c (coff_real_object_p): Don't clear obj_coff_keep_syms or obj_coff_keep_strings here. (coff_get_normalized_symtab): Free external syms directly. * xcofflink.c (xcoff_link_input_bfd): Restore obj_coff_keep_syms on error exit path.
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