Mike Frysinger [Mon, 1 Jan 2024 21:44:50 +0000 (16:44 -0500)]
sim: ppc: unify igen filter_filename implementations
Now that both igen implementations are in the top-level, we can unify
the filter_filename implementation between them since they're the same
(literally the same code).
Mike Frysinger [Mon, 1 Jan 2024 21:32:48 +0000 (16:32 -0500)]
sim: ppc: replace filter_filename with lbasename
The lbasename function from libiberty provides the same API as this
custom function. The common/ code already made the switch, so make
the same change to the ppc code to avoid target duplication.
Mike Frysinger [Mon, 1 Jan 2024 20:48:15 +0000 (15:48 -0500)]
sim: ppc: hoist igen compilation into top-level
This simplifies the build a bit (especially for deps in port subdirs),
and avoids recursive make. This in turn speeds up the build, and lets
us reuse existing build-time vs host-time logic from Makefile.am.
Mike Frysinger [Mon, 1 Jan 2024 20:26:21 +0000 (15:26 -0500)]
sim: ppc: drop build-config.h usage
This header is only used by the igen tool, and none of the igen code
depends on the configure-time checks. Delete the logic to simplify
to prepare for moving it to the local.mk code.
Mike Frysinger [Mon, 1 Jan 2024 20:24:12 +0000 (15:24 -0500)]
sim: ppc: simplify filter_host.c logic
Switch this from a build-time generation to a static include. This
makes the build rules a bit simpler, especially as we move them to
Automake from hand-written makefiles.
Mike Frysinger [Mon, 1 Jan 2024 20:38:10 +0000 (15:38 -0500)]
sim: igen: remove libigen.a when cleaning
Mike Frysinger [Mon, 1 Jan 2024 16:04:08 +0000 (11:04 -0500)]
sim: ppc: drop unused host bitsize settings
This is never set anywhere, so it's always empty. Scrub it.
Mike Frysinger [Sun, 24 Dec 2023 10:21:30 +0000 (05:21 -0500)]
sim: frv: fix cmpb uninitialized variable usage
This code sets up the cc variable based on the comparison of other
registers, but it does so incrementally with bit operations, and it
never initializes the cc variable. Initialize it to 0 which the
cmpba insn is already doing.
Mike Frysinger [Fri, 22 Dec 2023 01:06:10 +0000 (20:06 -0500)]
sim: arm: mark local read-only arrays as static const
Move it into read-only data sections to avoid constructing them on the
stack at runtime.
Mike Frysinger [Wed, 6 Dec 2023 13:39:25 +0000 (06:39 -0700)]
sim: warnings: enable -Wunused-variable
Mike Frysinger [Tue, 19 Dec 2023 01:55:58 +0000 (20:55 -0500)]
cpu: or1k: drop unused l.swa flag
The "flag" argument isn't set/used in this insn, so drop it.
This fixes an unused variable warning in the generated sim.
Tom Tromey [Sun, 31 Dec 2023 21:55:58 +0000 (14:55 -0700)]
sim: fix pervasive typo
I noticed a typo in a sim constant. This patch fixes it.
permenant -> permanent
GDB Administrator [Mon, 1 Jan 2024 00:00:49 +0000 (00:00 +0000)]
Automatic date update in version.in
Tom Tromey [Sun, 31 Dec 2023 23:36:44 +0000 (16:36 -0700)]
Run 'black' on tui-window.py
Mark pointed out that a recent patch of mine caused the buildbot to
complain about the formatting of some Python test code. This patch
re-runs 'black' to fix the problem.
Tom de Vries [Sun, 31 Dec 2023 08:39:45 +0000 (09:39 +0100)]
[gdb/testsuite] Fix typo in gdb.base/catch-syscall.exp
On aarch64-linux with a gdb build without libexpat, I run into:
...
(gdb) PASS: gdb.base/catch-syscall.exp: determine pipe syscall: \
catch syscall 59
continue
Continuing.
Catchpoint 5 (call to syscall 59), 0x0000fffff7e04578 in pipe () from \
/lib64/libc.so.6
(gdb) FAIL: gdb.base/catch-syscall.exp: determine pipe syscall: continue
...
In the test-case, this pattern handles either the syscall name or number for
the pipe syscall:
...
-re -wrap "Catchpoint $decimal \\(call to syscall (pipe|$SYS_pipe)\\).*" {
...
but the pattern for the pipe2 syscall mistakenly uses SYS_pipe instead of
SYS_pipe2:
...
-re -wrap "Catchpoint $decimal \\(call to syscall (pipe2|$SYS_pipe)\\).*" {
...
and consequently doesn't handle the pipe2 syscall number.
Fix the typo by using SYS_pipe2 instead.
Tested on aarch64-linux.
GDB Administrator [Sun, 31 Dec 2023 00:00:10 +0000 (00:00 +0000)]
Automatic date update in version.in
Tom Tromey [Wed, 13 Dec 2023 05:49:52 +0000 (22:49 -0700)]
Add keywords to TuiWindow.write
The gdb docs promise that methods with more than two or more arguments
will accept keywords. However, I found that TuiWindow.write didn't
allow them. This patch adds the missing support.
Tom de Vries [Sat, 30 Dec 2023 19:04:10 +0000 (20:04 +0100)]
[gdb/testsuite] Fix gdb.base/gdb-index-err.exp for root user
When running test-case gdb.base/gdb-index-err.exp in a container as root user,
I run into:
...
FAIL: gdb.base/gdb-index-err.exp: flag=: \
try to write index to a non-writable directory
FAIL: gdb.base/gdb-index-err.exp: flag=-dwarf-5: \
try to write index to a non-writable directory
...
The test-case creates a directory without write permissions:
...
$ ls -ald private
dr-xr-xr-x 2 root root 4096 Dec 29 06:26 private/
...
but apparently the root user is still able to write in it.
Fix this by making the test unsupported for the root user.
Tested on x86_64-linux.
Reviewed-By: Lancelot SIX <lancelot.six@amd.com>
PR testsuite/31197
Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=31197
Alan Modra [Thu, 28 Dec 2023 11:42:17 +0000 (22:12 +1030)]
LoongArch: Commas inside double quotes
This adds an extra feature: Commas inside double quotes are not an
arg delimiter, and thus can be part of the arg.
* loongarch-coder.c (loongarch_split_args_by_comma): Commas
inside quotes are not arg delimiters.
Alan Modra [Sat, 30 Dec 2023 02:27:42 +0000 (12:57 +1030)]
Regen bfd-in2.h
Please DON'T edit this file. READ THE COMMENT!
Joseph Myers [Sat, 30 Dec 2023 00:32:00 +0000 (00:32 +0000)]
MAINTAINERS: Update my email address
There will be another update in January.
GDB Administrator [Sat, 30 Dec 2023 00:00:23 +0000 (00:00 +0000)]
Automatic date update in version.in
H.J. Lu [Fri, 29 Dec 2023 23:46:59 +0000 (15:46 -0800)]
x86: Append "#pass" to APX tests
Append "#pass" to APX tests for targets which pad text sections with NOPs.
* testsuite/gas/i386/x86-64-apx-evex-promoted-bad.d: Append
"#pass".
* testsuite/gas/i386/x86-64-apx-ndd-optimize.d: Likewise.
* testsuite/gas/i386/x86-64-apx-ndd.d: Likewise.
* testsuite/gas/i386/x86-64-apx-pushp-popp-intel.d: Likewise.
* testsuite/gas/i386/x86-64-apx-pushp-popp.d: Likewise.
H.J. Lu [Fri, 29 Dec 2023 23:43:07 +0000 (15:43 -0800)]
x86: Don't use .insn with '/'
'/' starts a comment for some targets. Use .byte instead of .insn with
'/'.
* testsuite/gas/i386/x86-64-apx-evex-promoted-bad.s: Use .byte
instead of .insn with '/'.
H.J. Lu [Fri, 29 Dec 2023 20:43:11 +0000 (12:43 -0800)]
Fix x86-64: Add R_X86_64_CODE_4_GOTPCRELX
commit
3d5a60de52556f6a53d71d7e607c6696450ae3e4
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Thu Jun 8 10:01:03 2023 -0700
x86-64: Add R_X86_64_CODE_4_GOTPCRELX
added a new field, fx_tcbit3, to fix. But it didn't initialize it.
Fix it by clearing it in fix_new_internal.
* wrtite.c (fix_new_internal): Clear fx_tcbit3.
Nils-Christian Kempke [Mon, 21 Mar 2022 14:43:38 +0000 (15:43 +0100)]
dwarf, fortran: add support for DW_TAG_entry_point
Fortran provides additional entry points for subroutines and functions.
These entry points may use only a subset (or a different set) of the
parameters of the original subroutine. The entry points may be described
via the DWARF tag DW_TAG_entry_point.
This commit adds support for parsing the DW_TAG_entry_point DWARF tag.
Currently, between ifx/ifort/gfortran, only ifort is actually emitting
this tag. Both, ifx and gfortran use the DW_TAG_subprogram tag as
workaround/alternative. Thus, this patch really only adds more ifort
support. Even so, some of the attached tests still fail for ifort, due
to some wrong line info generated for the entry points in ifort.
After this patch it is possible to set a breakpoint in gdb with the
ifort compiled example at the entry points 'foo' and 'foobar', which was not
possible before.
As gcc and ifx do not emit the tag I also added a test to gdb.dwarf2
which uses some underlying c compiled code and adds some Fortran style DWARF
to it emitting the DW_TAG_entry_point. Before this patch it was not
possible to actually define breakpoint at the entry point tags.
For gfortran there actually exists a bug on bugzilla, asking for the use
of DW_TAG_entry_point over DW_TAG_subprogram:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=37134
This patch was originally posted here
https://sourceware.org/legacy-ml/gdb-patches/2017-07/msg00317.html
but its review/pinging got lost after a while. I reworked it to fit the
current GDB.
Co-authored-by: Bernhard Heckel <bernhard.heckel@intel.com>
Co-authored-by: Tim Wiederhake <tim.wiederhake@intel.com>
Approved-by: Tom Tromey <tom@tromey.com>
Nils-Christian Kempke [Wed, 13 Jul 2022 09:23:36 +0000 (11:23 +0200)]
gdb, dwarf: add assert to dwarf2_get_pc_bounds
In dwarf2_get_pc_bounds we were writing unchecked to *lowpc. This
commit adds a gdb_assert to first check that lowpc != nullptr.
Approved-by: Tom Tromey <tom@tromey.com>
Nils-Christian Kempke [Wed, 13 Jul 2022 08:57:27 +0000 (10:57 +0200)]
gdb, dwarf: move part of dwarf2_get_pc_bounds into separate function
This commit is in preparation of the next commit. There, we will add
a second variation to retrieve the pc bounds for DIEs tagged with
DW_TAG_entry_point. Instead of dwarf_get_pc_bounds_ranges_or_highlow_pc
we will call a separate method for entry points. As the validity checks
at the endo f dwarf2_get_pc_bounds are the same for both variants,
we introduced the new dwarf_get_pc_bounds_ranges_or_highlow_pc method,
outsourcing part of dwarf2_get_pc_bounds.
This commit should have no functional impact on GDB.
Approved-by: Tom Tromey <tom@tromey.com>
changjiachen [Thu, 28 Dec 2023 12:01:15 +0000 (20:01 +0800)]
LoongArch: ld: Add support for tls le relax.
Add tls le relax related testsuites in ld.
The new test cases are mainly tested in three aspects:
1. tls le relax function correctness test.
2. tls le relax boundary check test.
3. tls le relax function compatibility test.
ld/testsuite/ChangeLog:
* ld/testsuite/ld-loongarch-elf/relax.exp: Modify test.
* ld/testsuite/ld-loongarch-elf/old-tls-le.s: New test.
* ld/testsuite/ld-loongarch-elf/relax-bound-check-tls-le.s: Likewise.
* ld/testsuite/ld-loongarch-elf/tls-relax-compatible-check-new.s: Likewise.
* ld/testsuite/ld-loongarch-elf/relax-tls-le.s: Likewise.
* ld/testsuite/ld-loongarch-elf/tls-relax-compatible-check-old.s: Likewise.
changjiachen [Thu, 28 Dec 2023 11:59:39 +0000 (19:59 +0800)]
LoongArch: gas: Add support for tls le relax.
Add tls le relax related relocs support and testsuites in gas.
The main test is three new relocation items,
R_LARCH_TLS_LE_ADD_R, R_LARCH_TLS_LE_HI20_R,
R_LARCH_TLS_LE_LO12_R can be generated properly
and tls le insn format check.
gas/ChangeLog:
* config/tc-loongarch.c:
(loongarch_args_parser_can_match_arg_helper): Add support for relax.
* gas/testsuite/gas/loongarch/reloc.d: Likewise.
* gas/testsuite/gas/loongarch/reloc.s: Likewise.
* gas/testsuite/gas/loongarch/loongarch.exp: Likewise.
* gas/testsuite/gas/loongarch/tls_le_insn_format_check.s: New test.
changjiachen [Thu, 28 Dec 2023 11:58:28 +0000 (19:58 +0800)]
LoongArch: opcodes: Add support for tls le relax.
Add new opcode for tls le relax.
opcode/ChangeLog:
* loongarch-opc.c: Add new loongarch opcode.
changjiachen [Thu, 28 Dec 2023 11:57:30 +0000 (19:57 +0800)]
LoongArch: include: Add support for tls le relax.
Add new relocs number for tls le relax.
include/ChangeLog:
* elf/loongarch.h:
(RELOC_NUMBER (R_LARCH_TLS_LE_HI20_R, 121)): New relocs number.
(RELOC_NUMBER (R_LARCH_TLS_LE_ADD_R, 122)): Likewise.
(RELOC_NUMBER (R_LARCH_TLS_LE_LO12_R, 123)): Likewise.
changjiachen [Thu, 28 Dec 2023 12:07:54 +0000 (20:07 +0800)]
LoongArch: bfd: Add support for tls le relax.
Add tls le relax support and related relocs in bfd.
New relocation related explanation can refer to the following url:
https://github.com/loongson/la-abi-specs/blob/release/laelf.adoc
This support does two main things:
1. Implement support for three new relocation items in bfd.
The three new relocation items are shown below:
R_LARCH_TLS_LE_ADD_R
R_LARCH_TLS_LE_HI20_R
R_LARCH_TLS_LE_LO12_R
2. ADD a new macro RELOCATE_TLS_TP32_HI20
Handle problems caused by symbol extensions in TLS LE, The processing
is similar to the macro RELOCATE_CALC_PC32_HI20 method.
3. Implement the tls le relax function.
bfd/ChangeLog:
* bfd-in2.h: Add relocs related to tls le relax.
* elfnn-loongarch.c:
(loongarch_relax_tls_le): New function.
(RELOCATE_TLS_TP32_HI20): New macro.
(loongarch_elf_check_relocs): Add new reloc support.
(perform_relocation): Likewise.
(loongarch_elf_relocate_section): Handle new relocs related to relax.
(loongarch_elf_relax_section): Likewise.
* elfxx-loongarch.c:
(LOONGARCH_HOWTO (R_LARCH_TLS_LE_ADD_R)): New reloc how to type.
(LOONGARCH_HOWTO (R_LARCH_TLS_LE_HI20_R)): Likewise.
(LOONGARCH_HOWTO (R_LARCH_TLS_LE_LO12_R)): Likewise.
* libbfd.h: Add relocs related to tls le relax.
* reloc.c: Likewise.
Jin Ma [Mon, 25 Dec 2023 08:49:21 +0000 (16:49 +0800)]
RISC-V: THEAD: Add 5 assembly pseudoinstructions for XTheadVector extension
In order to make it easier to complete the compiler's support for
the XTheadVector extension and to be as compatible as possible
with the programming model of the 'V' extension ([1]), we consider
adding a few pseudo instructions ([2]).
th.vmmv.m vd,vs => th.vmand.mm vd,vs,vs
th.vneg.v vd,vs => th.vrsub.vx vd,vs,x0
th.vncvt.x.x.v vd,vs,vm => th.vnsrl.vx vd,vs,x0,vm
th.vfneg.v vd,vs => th.vfsgnjn.vv vd,vs,vs
th.vfabs.v vd,vs => th.vfsgnjx.vv vd,vs,vs
Ref:
[1] https://gcc.gnu.org/pipermail/gcc-patches/2023-December/641302.html
[2] https://github.com/T-head-Semi/thead-extension-spec/pull/40
Co-developed-by: Lifang Xia <lifang_xia@linux.alibaba.com>
Co-developed-by: Christoph Müllner <christoph.muellner@vrull.eu>
gas/ChangeLog:
* testsuite/gas/riscv/x-thead-vector.d: Add tests for new
pseudoinstructions.
* testsuite/gas/riscv/x-thead-vector.s: Likewise.
opcodes/ChangeLog:
* riscv-opc.c: Add new pseudoinstructions.
GDB Administrator [Fri, 29 Dec 2023 00:00:37 +0000 (00:00 +0000)]
Automatic date update in version.in
H.J. Lu [Thu, 28 Dec 2023 16:46:31 +0000 (08:46 -0800)]
ld: Mention support for Intel APX relocations in NEWS
H.J. Lu [Sun, 2 Jul 2023 14:46:21 +0000 (07:46 -0700)]
Gold: Handle R_X86_64_CODE_4_GOTPC32_TLSDESC/R_X86_64_CODE_4_GOTTPOFF
Handle R_X86_64_CODE_4_GOTTPOFF and R_X86_64_CODE_4_GOTPC32_TLSDESC.
Convert
add name@gottpoff(%rip), %reg
mov name@gottpoff(%rip), %reg
to
add $name@tpoff, %reg
mov $name@tpoff, %reg
and
lea name@tlsdesc(%rip), %reg
to
mov $name@tpoff, %reg
mov name@gottpoff(%rip), %reg
if the instruction is encoded with the REX2 prefix when possible.
elfcpp/
* x86_64.h (R_X86_64_CODE_4_GOTTPOFF): New.
(R_X86_64_CODE_4_GOTPC32_TLSDESC): Likewise.
gold/
* x86_64.cc (Target_x86_64::optimize_tls_reloc): Handle
R_X86_64_CODE_4_GOTPC32_TLSDESC and R_X86_64_CODE_4_GOTTPOFF.
(Target_x86_64::Scan::get_reference_flags): Likewise.
(Target_x86_64::Scan::local): Likewise.
(Target_x86_64::Scan::global): Likewise.
(Target_x86_64::Relocate::relocate): Likewise.
(Target_x86_64::Relocate::relocate_tls): Likewise.
(Target_x86_64::Relocate::tls_desc_gd_to_ie): Handle
R_X86_64_CODE_4_GOTPC32_TLSDESC.
(Target_x86_64::Relocate::tls_desc_gd_to_le): Likewise.
(Target_x86_64::Relocate::tls_ie_to_le): Handle.
R_X86_64_CODE_4_GOTTPOFF.
* testsuite/Makefile.am: Add x86_64_ie_to_le test.
* testsuite/Makefile.in: Regenerated.
* testsuite/x86_64_gd_to_le.s: Add R_X86_64_CODE_4_GOTPC32_TLSDESC
test.
* testsuite/x86_64_gd_to_le.sh: Check GDesc to LE conversion.
* testsuite/x86_64_ie_to_le.s: New file.
* testsuite/x86_64_ie_to_le.sh: Likewise.
H.J. Lu [Fri, 9 Jun 2023 20:50:22 +0000 (13:50 -0700)]
x86-64: Add R_X86_64_CODE_4_GOTTPOFF/R_X86_64_CODE_4_GOTPC32_TLSDESC
For
add name@gottpoff(%rip), %reg
mov name@gottpoff(%rip), %reg
add
# define R_X86_64_CODE_4_GOTTPOFF 44
and for
lea name@tlsdesc(%rip), %reg
add
# define R_X86_64_CODE_4_GOTPC32_TLSDESC 45
if the instruction starts at 4 bytes before the relocation offset.
They are similar to R_X86_64_GOTTPOFF and R_X86_64_GOTPC32_TLSDESC,
respectively. Linker can covert GOTTPOFF to
add $name@tpoff, %reg
mov $name@tpoff, %reg
and GOTPC32_TLSDESC to
mov $name@tpoff, %reg
mov name@gottpoff(%rip), %reg
if the instruction is encoded with the REX2 prefix when possible.
bfd/
* elf64-x86-64.c (x86_64_elf_howto_table): Add
R_X86_64_CODE_4_GOTTPOFF and R_X86_64_CODE_4_GOTPC32_TLSDESC.
(R_X86_64_standard): Updated.
(x86_64_reloc_map): Add BFD_RELOC_X86_64_CODE_4_GOTTPOFF
and BFD_RELOC_X86_64_CODE_4_GOTPC32_TLSDESC.
(elf_x86_64_check_tls_transition): Handle R_X86_64_CODE_4_GOTTPOFF
and R_X86_64_CODE_4_GOTPC32_TLSDESC.
(elf_x86_64_tls_transition): Likewise.
(elf_x86_64_scan_relocs): Likewise.
(elf_x86_64_relocate_section): Likewise.
* reloc.c (bfd_reloc_code_real): Add
BFD_RELOC_X86_64_CODE_4_GOTTPOFF and
BFD_RELOC_X86_64_CODE_4_GOTPC32_TLSDESC.
* bfd-in2.h: Regenerated.
* libbfd.h: Likewise.
gas/
* config/tc-i386.c (tc_i386_fix_adjustable): Handle
BFD_RELOC_X86_64_CODE_4_GOTTPOFF and
BFD_RELOC_X86_64_CODE_4_GOTPC32_TLSDESC.
(md_assemble): Handle BFD_RELOC_X86_64_CODE_4_GOTTPOFF.
(output_insn): Don't add empty REX prefix with REX2 prefix.
(output_disp): Handle BFD_RELOC_X86_64_CODE_4_GOTTPOFF and
BFD_RELOC_X86_64_CODE_4_GOTPC32_TLSDESC.
(md_apply_fix): Likewise.
(i386_validate_fix): Generate BFD_RELOC_X86_64_CODE_4_GOTTPOFF or
BFD_RELOC_X86_64_CODE_4_GOTPC32_TLSDESC if ixp->fx_tcbit3 is set.
(tc_gen_reloc): Handle BFD_RELOC_X86_64_CODE_4_GOTTPOFF and
BFD_RELOC_X86_64_CODE_4_GOTPC32_TLSDESC.
* testsuite/gas/i386/x86-64-gottpoff.d: New file.
* testsuite/gas/i386/x86-64-gottpoff.s: Likewise.
* testsuite/gas/i386/x86-64-tlsdesc.d: Likewise.
* testsuite/gas/i386/x86-64-tlsdesc.s: Likewise.
include/
* elf/x86-64.h (elf_x86_64_reloc_type): Add
R_X86_64_CODE_4_GOTTPOFF and R_X86_64_CODE_4_GOTPC32_TLSDESC
ld/
* testsuite/ld-x86-64/tlsbindesc.d: Updated.
* testsuite/ld-x86-64/tlsbindesc.rd: Likewise.
* testsuite/ld-x86-64/tlsbindesc.s: Add R_X86_64_CODE_4_GOTTPOFF
and R_X86_64_CODE_4_GOTPC32_TLSDESC tests.
H.J. Lu [Thu, 8 Jun 2023 19:12:48 +0000 (12:12 -0700)]
gold: Handle R_X86_64_CODE_4_GOTPCRELX
Handle R_X86_64_CODE_4_GOTPCRELX and convert
mov name@GOTPCREL(%rip), %r31
to
lea name@GOTPCREL(%rip), %r31
if the instruction is encoded with the REX2 prefix when possible.
elfcpp/
* x86_64.h (R_X86_64_CODE_4_GOTPCRELX): New.
gold/
* x86_64.cc (Target_x86_64::can_convert_mov_to_lea): Handle
R_X86_64_CODE_4_GOTPCRELX.
(Target_x86_64::Scan::get_reference_flags): Likewise.
(Target_x86_64::Scan::local): Likewise.
(Target_x86_64::Scan::possible_function_pointer_reloc): Likewise.
(Target_x86_64::Scan::global): Likewise.
(Target_x86_64::Relocate::relocate): Likewise.
* testsuite/x86_64_mov_to_lea1.s: Add a test for
R_X86_64_CODE_4_GOTPCRELX.
* testsuite/x86_64_mov_to_lea2.s: Likewise.
* testsuite/x86_64_mov_to_lea3.s: Likewise.
* testsuite/x86_64_mov_to_lea4.s: Likewise.
* testsuite/x86_64_mov_to_lea5.s: Likewise.
* testsuite/x86_64_mov_to_lea.sh: Updated.
H.J. Lu [Thu, 8 Jun 2023 17:01:03 +0000 (10:01 -0700)]
x86-64: Add R_X86_64_CODE_4_GOTPCRELX
For
mov name@GOTPCREL(%rip), %reg
test %reg, name@GOTPCREL(%rip)
binop name@GOTPCREL(%rip), %reg
where binop is one of adc, add, add, cmp, or, sbb, sub, xor instructions,
add
# define R_X86_64_CODE_4_GOTPCRELX 43
if the instruction starts at 4 bytes before the relocation offset. It
similar to R_X86_64_GOTPCRELX. Linker can treat R_X86_64_CODE_4_GOTPCRELX
as R_X86_64_GOTPCREL or convert the above instructions to
lea name(%rip), %reg
mov $name, %reg
test $name, %reg
binop $name, %reg
if the instruction is encoded with the REX2 prefix when possible.
bfd/
* elf64-x86-64.c (x86_64_elf_howto_table): Add
R_X86_64_CODE_4_GOTPCRELX.
(R_X86_64_standard): Updated.
(x86_64_reloc_map): Add BFD_RELOC_X86_64_CODE_4_GOTPCRELX.
(elf_x86_64_convert_load_reloc): Handle R_X86_64_CODE_4_GOTPCRELX.
(elf_x86_64_scan_relocs): Likewise.
(elf_x86_64_relocate_section): Likewise.
* reloc.c (bfd_reloc_code_real): Add
BFD_RELOC_X86_64_CODE_4_GOTPCRELX.
* bfd-in2.h: Regenerated.
* libbfd.h: Likewise.
gas/
* write.h (fix): Add fx_tcbit3. Change fx_unused to 1 bit.
* config/tc-i386.c (tc_i386_fix_adjustable): Handle
BFD_RELOC_X86_64_CODE_4_GOTPCRELX.
(tc_gen_reloc): Likewise.
(output_disp): Set fixP->fx_tcbit3 for REX2 prefix.
(i386_validate_fix): Generate BFD_RELOC_X86_64_CODE_4_GOTPCRELX
if fixp->fx_tcbit3 is set.
* config/tc-i386.h (TC_FORCE_RELOCATION_LOCAL): Add
BFD_RELOC_X86_64_CODE_4_GOTPCRELX.
(TC_FORCE_RELOCATION_ABS): Likewise.
* testsuite/gas/i386/x86-64-gotpcrel.s: Add tests for
R_X86_64_CODE_4_GOTPCRELX.
* testsuite/gas/i386/x86-64-localpic.s: Likewise.
* testsuite/gas/i386/x86-64-gotpcrel.d: Updated.
* testsuite/gas/i386/x86-64-localpic.d: Likewise.
* testsuite/gas/i386/ilp32/x86-64-localpic.d: Likewise.
include/
* elf/x86-64.h (elf_x86_64_reloc_type): Add
R_X86_64_CODE_4_GOTPCRELX.
ld/
* testsuite/ld-x86-64/apx-load1.s: New file.
* testsuite/ld-x86-64/apx-load1a.d: Likewise.
* testsuite/ld-x86-64/apx-load1b.d: Likewise.
* testsuite/ld-x86-64/apx-load1c.d: Likewise.
* testsuite/ld-x86-64/apx-load1d.d: Likewise.
* testsuite/ld-x86-64/x86-64.exp: Run apx-load1a, apx-load1b,
apx-load1c and apx-load1d.
H.J. Lu [Thu, 28 Dec 2023 16:19:39 +0000 (08:19 -0800)]
gas: Mention initial support for Intel APX in NEWS
Schimpe, Christina [Wed, 27 Dec 2023 14:19:21 +0000 (14:19 +0000)]
x86: Add NT_X86_SHSTK note
Define NT_X86_SHSTK which is the note for x86 Shadow Stack (SHSTK) to
support Intel SHSTK in Linux kernel.
For now only userspace shadow stack and kernel IBT are supported by the
linux kernel. This note should be used instead of NT_X86_CET introduced
in the commit "x86: Add NT_X86_CET note", as it is outdated and only
used by old binutils versions.
Hu, Lin1 [Thu, 28 Dec 2023 01:06:41 +0000 (01:06 +0000)]
Support APX JMPABS for disassembler
gas/ChangeLog:
* testsuite/gas/i386/x86-64.exp: Ditto.
* testsuite/gas/i386/x86-64-apx-jmpabs-intel.d: Ditto.
* testsuite/gas/i386/x86-64-apx-jmpabs-inval.d: Ditto.
* testsuite/gas/i386/x86-64-apx-jmpabs-inval.s: Ditto.
* testsuite/gas/i386/x86-64-apx-jmpabs.d: Ditto.
* testsuite/gas/i386/x86-64-apx-jmpabs.s: Ditto.
opcodes/ChangeLog:
* i386-dis.c (JMPABS_Fixup): New Fixup function to disassemble jmpabs.
(print_insn): Add #UD exception for jmpabs.
(dis386): Modify a1 unit for support jmpabs.
* i386-mnem.h: Regenerated.
* i386-opc.tbl: New insns.
* i386-tbl.h: Regenerated.
Hu, Lin1 [Thu, 28 Dec 2023 01:06:41 +0000 (01:06 +0000)]
Support APX NDD optimized encoding.
This patch aims to optimize:
add %r16, %r15, %r15 -> add %r16, %r15
gas/ChangeLog:
* config/tc-i386.c (check_Rex_required): New function.
(can_convert_NDD_to_legacy): Ditto.
(match_template): If we can optimzie APX NDD insns, so rematch
template.
* testsuite/gas/i386/x86-64.exp: Add test.
* testsuite/gas/i386/x86-64-apx-ndd-optimize.d: New test.
* testsuite/gas/i386/x86-64-apx-ndd-optimize.s: Ditto.
Cui, Lili [Thu, 28 Dec 2023 01:06:41 +0000 (01:06 +0000)]
Support APX pushp/popp
gas/ChangeLog:
* config/tc-i386.c (process_operands): Handle "PUSHP/POPP requires
rex2.w == 1."
* testsuite/gas/i386/x86-64.exp: Add new test for PUSHP/POPP.
* testsuite/gas/i386/x86-64-apx-pushp-popp-intel.d: New test.
* testsuite/gas/i386/x86-64-apx-pushp-popp-inval.l: Ditto.
* testsuite/gas/i386/x86-64-apx-pushp-popp-inval.s: Ditto.
* testsuite/gas/i386/x86-64-apx-pushp-popp.d: Ditto.
* testsuite/gas/i386/x86-64-apx-pushp-popp.s: Ditto.
opcodes/ChangeLog:
* i386-dis.c (putop): print pushp and popp.
* i386-opc.tbl: Added new insns.
* i386-init.h : Regenerated.
* i386-mnem.h : Regenerated.
* i386-tbl.h: Regenerated.
Mo, Zewei [Thu, 28 Dec 2023 01:06:40 +0000 (01:06 +0000)]
Support APX Push2/Pop2
PPX functionality for PUSH/POP is not implemented in this patch
and will be implemented separately.
gas/ChangeLog:
2023-12-28 Zewei Mo <zewei.mo@intel.com>
H.J. Lu <hongjiu.lu@intel.com>
Lili Cui <lili.cui@intel.com>
* config/tc-i386.c: (enum i386_error):
New unsupported_rsp_register and invalid_src_register_set.
(md_assemble): Add handler for unsupported_rsp_register and
invalid_src_register_set.
(check_APX_operands): Add invalid check for push2/pop2.
(match_template): Handle check_APX_operands.
* testsuite/gas/i386/i386.exp: Add apx-push2pop2 tests.
* testsuite/gas/i386/x86-64.exp: Ditto.
* testsuite/gas/i386/x86-64-apx-push2pop2.d: New test.
* testsuite/gas/i386/x86-64-apx-push2pop2.s: Ditto.
* testsuite/gas/i386/x86-64-apx-push2pop2-intel.d: Ditto.
* testsuite/gas/i386/x86-64-apx-push2pop2-inval.l: Ditto.
* testsuite/gas/i386/x86-64-apx-push2pop2-inval.s: Ditto.
* testsuite/gas/i386/apx-push2pop2-inval.s: Ditto.
* testsuite/gas/i386/apx-push2pop2-inval.d: Ditto.
* testsuite/gas/i386/x86-64-apx-evex-promoted-bad.d: Added bad
testcases for POP2.
* testsuite/gas/i386/x86-64-apx-evex-promoted-bad.s: Ditto.
opcodes/ChangeLog:
* i386-dis-evex-reg.h: Add REG_EVEX_MAP4_8F.
* i386-dis-evex-w.h: Add EVEX_W_MAP4_8F_R_0 and EVEX_W_MAP4_FF_R_6
* i386-dis-evex.h: Add REG_EVEX_MAP4_8F.
* i386-dis.c (PUSH2_POP2_Fixup): Add special handling for PUSH2/POP2.
(get_valid_dis386): Add handler for vector length and address_mode for
APX-Push2/Pop2 insn.
(nd): define nd as b for EVEX-promoted instrutions.
(OP_VEX): Add handler of 64-bit vvvv register for APX-Push2/Pop2 insn.
* i386-gen.c: Add Push2Pop2 bitfield.
* i386-opc.h: Regenerated.
* i386-opc.tbl: Regenerated.
konglin1 [Thu, 28 Dec 2023 01:06:40 +0000 (01:06 +0000)]
Support APX NDD
opcodes/ChangeLog:
* opcodes/i386-dis-evex-reg.h: Handle for REG_EVEX_MAP4_80,
REG_EVEX_MAP4_81, REG_EVEX_MAP4_83, REG_EVEX_MAP4_F6,
REG_EVEX_MAP4_F7, REG_EVEX_MAP4_FE, REG_EVEX_MAP4_FF.
* opcodes/i386-dis-evex.h: Add NDD insn.
* opcodes/i386-dis.c (nd): New define.
(VexGb): Ditto.
(VexGv): Ditto.
(get_valid_dis386): Change for NDD decode.
(print_insn): Ditto.
(putop): Ditto.
(intel_operand_size): Ditto.
(OP_E_memory): Ditto.
(OP_VEX): Ditto.
* opcodes/i386-opc.h (VexVVVV_DST): New.
* opcodes/i386-opc.tbl: Add APX NDD instructions and adjust VexVVVV.
* opcodes/i386-tbl.h: Regenerated.
gas/ChangeLog:
* gas/config/tc-i386.c (operand_size_match):
Support APX NDD that the number of operands is 3.
(build_apx_evex_prefix): Change for ndd encode.
(process_operands): Ditto.
(build_modrm_byte): Ditto.
(match_template): Support swap the first two operands for
APX NDD.
* testsuite/gas/i386/x86-64.exp: Add x86-64-apx-ndd.
* testsuite/gas/i386/x86-64-apx-ndd.d: New test.
* testsuite/gas/i386/x86-64-apx-ndd.s: Ditto.
* testsuite/gas/i386/x86-64-pseudos.d: Add test.
* testsuite/gas/i386/x86-64-pseudos.s: Ditto.
* testsuite/gas/i386/x86-64-apx-evex-promoted-bad.d : Ditto.
* testsuite/gas/i386/x86-64-apx-evex-promoted-bad.s : Ditto.
Cui, Lili [Thu, 28 Dec 2023 01:06:40 +0000 (01:06 +0000)]
Add tests for APX GPR32 with extend evex prefix
gas/ChangeLog:
2023-12-28 Lingling Kong <lingling.kong@intel.com>
H.J. Lu <hongjiu.lu@intel.com>
Lili Cui <lili.cui@intel.com>
Lin Hu <lin1.hu@intel.com>
* testsuite/gas/i386/x86-64-apx-egpr-inval.l: Add some insn don't
support gpr32.
* testsuite/gas/i386/x86-64-apx-egpr-inval.s: Ditto.
* testsuite/gas/i386/x86-64.exp: Add new test.
* testsuite/gas/i386/x86-64-apx-egpr-promote-inval.l: New test.
* testsuite/gas/i386/x86-64-apx-egpr-promote-inval.s: New test.
* testsuite/gas/i386/x86-64-apx-evex-egpr.d: New test.
* testsuite/gas/i386/x86-64-apx-evex-egpr.s: New test.
* testsuite/gas/i386/x86-64-apx-evex-promoted-bad.d: New test.
* testsuite/gas/i386/x86-64-apx-evex-promoted-bad.s: New test.
* testsuite/gas/i386/x86-64-apx-evex-promoted-intel.d: New test.
* testsuite/gas/i386/x86-64-apx-evex-promoted.d: New test.
* testsuite/gas/i386/x86-64-apx-evex-promoted.s: New test.
Cui, Lili [Thu, 28 Dec 2023 01:06:40 +0000 (01:06 +0000)]
Support APX GPR32 with extend evex prefix
This patch adds non-ND, non-NF forms of EVEX promotion insn.
EVEX extension of legacy instructions:
All promoted legacy instructions are placed in EVEX map 4, which is
currently reserved.
EVEX extension of EVEX instructions:
All existing EVEX instructions are extended by APX using the extended
EVEX prefix, so that they can access all 32 GPRs.
EVEX extension of VEX instructions:
Promoting a VEX instruction into the EVEX space does not change the map
id, the opcode, or the operand encoding of the VEX instruction.
Note: The promoted versions of MOVBE will be extended to include the “MOVBE
reg1, reg2”.
gas/ChangeLog:
2023-12-28 Lingling Kong <lingling.kong@intel.com>
H.J. Lu <hongjiu.lu@intel.com>
Lili Cui <lili.cui@intel.com>
Lin Hu <lin1.hu@intel.com>
* config/tc-i386.c (struct _i386_insn): Add has_egpr.
(need_evex_encoding): Adjusted for apx.
(cpu_flags_match): Ditto.
(install_template): Handled APX combines.
(is_apx_evex_encoding): Test apx evex encoding.
(build_apx_evex_prefix): Enabe APX evex prefix.
(md_assemble): Handle apx with evex encoding.
(process_suffix): Handle apx map4 prefix.
(check_register): Assign i.vec_encoding for APX evex instructions.
* testsuite/gas/i386/x86-64-evex.d: Adjust test cases.
* testsuite/gas/i386/x86-64.exp: Adjust x86-64-inval-movbe.
opcodes/ChangeLog:
* i386-dis-evex-len.h: Handle EVEX_LEN_0F38F2, EVEX_LEN_0F38F3.
* i386-dis-evex-prefix.h: Handle PREFIX_EVEX_0F38F2_L_0,
PREFIX_EVEX_0F38F3_L_0, PREFIX_EVEX_MAP4_D8,
PREFIX_EVEX_MAP4_DA, PREFIX_EVEX_MAP4_DB,
PREFIX_EVEX_MAP4_DC, PREFIX_EVEX_MAP4_DD,
PREFIX_EVEX_MAP4_DE, PREFIX_EVEX_MAP4_DF,
PREFIX_EVEX_MAP4_F0, PREFIX_EVEX_MAP4_F1,
PREFIX_EVEX_MAP4_F2, PREFIX_EVEX_MAP4_F8.
* i386-dis-evex-reg.h: Handle REG_EVEX_0F38F3_L_0_P_0.
* i386-dis-evex.h: Add EVEX_MAP4_ for legacy insn
promote to apx to use gpr32
* opcodes/i386-dis-evex-x86-64.h: Handle Add X86_64_EVEX_0F90,
X86_64_EVEX_0F92, X86_64_EVEX_0F93, X86_64_EVEX_0F38F2,
X86_64_EVEX_0F38F3, X86_64_EVEX_0F38F5, X86_64_EVEX_0F38F6,
X86_64_EVEX_0F38F7, X86_64_EVEX_0F3AF0, X86_64_EVEX_0F91.
* i386-dis.c
(struct instr_info): Deleted bool r.
(PREFIX_NP_OR_DATA): New.
(NO_PREFIX): New.
(putop): Ditto.
(X86_64_EVEX_FROM_VEX_TABLE): Diito.
(get_valid_dis386): Decode insn erex in extend evex prefix.
Handle EVEX_MAP4
(print_insn): Handle PREFIX_DATA_AND_NP_ONLY.
(print_register): Handle apx instructions decode.
(OP_E_memory): Diito.
(OP_G): Diito.
(OP_XMM): Diito.
(DistinctDest_Fixup): Diito.
* i386-gen.c (process_i386_opcode_modifier): Add EVEXMAP4.
* i386-opc.h (SPACE_EVEXMAP4): Add legacy insn
promote to evex.
* i386-opc.tbl: Handle some legacy and vex insns don't
support gpr32. And add some legacy insn (map2 / 3) promote
to evex.
Cui, Lili [Thu, 28 Dec 2023 01:06:40 +0000 (01:06 +0000)]
Created an empty EVEX_MAP4_ sub-table for EVEX instructions.
opcode/ChangeLog:
* i386-dis-evex.hi: Added an empty EVEX_MAP4_ sub-table for
legacy insn promote to EVEX insn.
* opcodes/i386-dis-evex.h: Add EVEX_MAP4.
Cui, Lili [Thu, 28 Dec 2023 01:06:39 +0000 (01:06 +0000)]
Support APX GPR32 with rex2 prefix
APX uses the REX2 prefix to support EGPR for map0 and map1 of legacy
instructions. We added the NoEgpr flag in i386-gen.c for instructions
that do not support EGPR.
gas/ChangeLog:
2023-12-28 Lingling Kong <lingling.kong@intel.com>
H.J. Lu <hongjiu.lu@intel.com>
Lili Cui <lili.cui@intel.com>
Lin Hu <lin1.hu@intel.com>
* config/tc-i386.c
(enum i386_error): Add unsupported_EGPR_for_addressing
and invalid_pseudo_prefix.
(struct _i386_insn): Add rex2 and rex2_encoding for
gpr32.
(cpu_arch): Add apx_f.
(is_cpu): Ditto.
(register_number): Handle RegRex2 for gpr32.
(is_apx_rex2_encoding): New func. Test rex2 prefix encoding.
(build_rex2_prefix): New func. Build legacy insn in
opcode 0/1 use gpr32 with rex2 prefix.
(establish_rex): Handle rex2 and rex2_encoding.
(optimize_encoding): Handel add r16-r31 for registers.
(md_assemble): Handle apx encoding.
(parse_insn): Handle Prefix_REX2.
(check_EgprOperands): New func. Check if Egprs operands
are valid for the instruction
(match_template): Handle Egpr operands check.
(set_rex_rex2): New func. set i.rex and i.rex2.
(build_modrm_byte): Ditto.
(output_insn): Handle rex2 2-byte prefix output.
(check_register): Handle check egpr illegal without
target apx, 64-bit mode and with rex_prefix.
* doc/c-i386.texi: Document .apx.
* testsuite/gas/i386/ilp32/x86-64-opcode-inval-intel.d: D5 valid
in 64-bit mode.
* testsuite/gas/i386/ilp32/x86-64-opcode-inval.d: Ditto.
* testsuite/gas/i386/rex-bad: Adjust rex testcase.
* testsuite/gas/i386/x86-64-opcode-inval-intel.d: Ditto.
* testsuite/gas/i386/x86-64-opcode-inval.d: Ditto.
* testsuite/gas/i386/x86-64-opcode-inval.s: Ditto.
* testsuite/gas/i386/x86-64-pseudos-bad.l: Add illegal rex2 test.
* testsuite/gas/i386/x86-64-pseudos-bad.s: Ditto.
* testsuite/gas/i386/x86-64-pseudos.d: Add rex2 test.
* testsuite/gas/i386/x86-64-pseudos.s: Ditto.
* testsuite/gas/i386/x86-64.exp: Run APX tests.
* testsuite/gas/i386/x86-64-apx-egpr-inval.l: New test.
* testsuite/gas/i386/x86-64-apx-egpr-inval.s: New test.
* testsuite/gas/i386/x86-64-apx-rex2.d: New test.
* testsuite/gas/i386/x86-64-apx-rex2.s: New test.
include/ChangeLog:
* opcode/i386.h (REX2_OPCODE): New.
(REX2_M): Ditto.
opcodes/ChangeLog:
* i386-dis.c (struct instr_info): Add erex for gpr32.
Add last_erex_prefix for rex2 prefix.
(REX2_M): Extend for gpr32.
(PREFIX_REX2): Ditto.
(PREFIX_REX2_ILLEGAL): Ditto.
(ckprefix): Ditto.
(prefix_name): Ditto.
(print_insn): Ditto.
(print_register): Ditto.
(OP_E_memory): Ditto.
(OP_REG): Ditto.
(OP_EX): Ditto.
* i386-gen.c (rex2_disallowed): Some instructions are not allowed rex2 prefix.
(process_i386_opcode_modifier): Set NoEgpr for VEX and some special instructions.
(output_i386_opcode): Handle if_entry_needs_special_handle.
* i386-init.h : Regenerated.
* i386-mnem.h : Regenerated.
* i386-opc.h (enum i386_cpu): Add CpuAPX_F.
(NoEgpr): New.
(Prefix_NoOptimize): Ditto.
(Prefix_REX2): Ditto.
(RegRex2): Ditto.
* i386-opc.tbl: Add rex2 prefix.
* i386-reg.tbl: Add egprs (r16-r31).
* i386-tbl.h: Regenerated.
Dimitar Dimitrov [Fri, 8 Dec 2023 18:39:10 +0000 (20:39 +0200)]
sim: pru: Fix emulation of carry bit
The PRU architecture documentation [1] was used for the initial GNU
simulator implementation. But recently [2] TI confirmed the carry
behaviour was wrongly documented. In reality, the PRU carry behaves
like the carry in ARM processors.
This patch fixes simulator to align with latest recommendations from TI.
The new carry.s test was also validated to pass on real hardware -
a BeaglePlay board [3]. That test is a bit long because TI still
has not released official updates for the PRU documents. And I wanted
to ensure simulator handles all edge cases exactly as the real hardware
does.
[1] https://www.ti.com/lit/pdf/spruij2
[2] https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1244359/sk-am64b-am64x-pru-assembler-how-works-this-bloody-carry
[3] https://www.beagleboard.org/boards/beagleplay
Signed-off-by: Dimitar Dimitrov <dimitar@dinux.eu>
Nelson Chu [Wed, 20 Dec 2023 02:37:41 +0000 (10:37 +0800)]
RISC-V: PR31179, The SET/ADD/SUB fix breaks ABI compatibility with 2.41 objects
* Problematic fix commit,
2029e13917d53d2289d3ebb390c4f40bd2112d21
RISC-V: Clarify the behaviors of SET/ADD/SUB relocations
* Bugzilla,
https://sourceware.org/bugzilla/show_bug.cgi?id=31179#c5
The addend of SUB_ULEB128 should be zero if using .uleb128, but we make it
non-zero by accident in assembler before. This causes troubles by applying
the above commit, since the calculation is changed to support .reloc *SUB*
relocations with non-zero addend.
We encourage people to rebuild their stuff to get the non-zero addend of
SUB_ULEB128, but that might need some times, so report warnings to inform
people need to rebuild their stuff if --check-uleb128 is enabled.
Since the failed .reloc cases for ADD/SET/SUB/ULEB128 are rarely to use,
it may acceptable that stop supproting them until people rebuld their stuff,
maybe half-year or a year later. Or maybe we should teach people that don't
write the .reloc R_RISCV_SUB* with non-zero constant, and then report
warnings/errors in assembler.
bfd/
* elfnn-riscv.c (perform_relocation): Ignore the non-zero addend of
R_RISCV_SUB_ULEB128.
(riscv_elf_relocate_section): Report warnings to inform people need
to rebuild their stuff if --check-uleb128 is enabled. So that can
get the right non-zero addend of R_RISCV_SUB_ULEB128.
* elfxx-riscv.h (struct riscv_elf_params): Added bool check_uleb128.
ld/
* NEWS: Updated.
* emultempl/riscvelf.em: Added linker risc-v target options,
--[no-]check-uleb128, to enable/disable checking if the addend of
uleb128 is non-zero or not. So that people will know they need to
rebuild the objects with binutils 2.42 and up, to get the right zero
addend of SUB_ULEB128 relocation, or they may get troubles if using
.reloc.
* ld/testsuite/ld-riscv-elf/ld-riscv-elf.exp: Updated.
* ld/testsuite/ld-riscv-elf/pr31179*: New test cases.
GDB Administrator [Thu, 28 Dec 2023 00:01:13 +0000 (00:01 +0000)]
Automatic date update in version.in
Alan Modra [Tue, 26 Dec 2023 12:16:56 +0000 (22:46 +1030)]
asan: buffer overflow in loongarch_elf_rtype_to_howto
Seen when running ld-loongarch-elf/tlsdesc-dso test.
elfxx-loongarch.c:1844:32: runtime error: index 125 out of bounds for
type 'loongarch_reloc_howto_type [124]'
So either the loongarch_howto_table needs three more
LOONGARCH_EMPTY_HOWTO entries, or loongarch_elf_rtype_to_howto should
be testing for r_type < ARRAY_SIZE (loongarch_howto_table). I figure
it's worth wasting a little more space to get faster lookup.
* elfxx-loongarch.c (loongarch_howto_table): Add
LOONGARCH_EMPTY_HOWTO entries for 121..123.
(loongarch_elf_rtype_to_howto): Don't support slow lookup.
Assert exact table size and r_type indexing. Omit return cast.
(loongarch_reloc_name_lookup): Omit assertion and return cast.
(loongarch_reloc_type_lookup): Likewise.
Alan Modra [Tue, 26 Dec 2023 05:50:34 +0000 (16:20 +1030)]
PR31191, objcopy leaves temporary files
Fix the ENOTDIR rmdir too.
PR 31191
* objcopy.c (copy_archive): Localise uses of "l". Remove
const from name_list.name. Unlink output element on bfd_close
error, and NULL list->name to indicate file is removed. Adjust
cleanup to prevent rmdir on non-existent file.
Mike Frysinger [Wed, 27 Dec 2023 03:53:31 +0000 (22:53 -0500)]
sim: common: pull in newlib extensions for Linux compatibility
Since newlib allows people to opt-in to extra errno names, pull them
into our table too. The values don't conflict with each other -- the
newlib names & values are distinct from newlib's Linux compatibility.
GDB Administrator [Wed, 27 Dec 2023 00:00:29 +0000 (00:00 +0000)]
Automatic date update in version.in
GDB Administrator [Tue, 26 Dec 2023 00:01:08 +0000 (00:01 +0000)]
Automatic date update in version.in
Mike Frysinger [Mon, 25 Dec 2023 05:11:19 +0000 (00:11 -0500)]
binutils: SECURITY: use https URI
Lulu Cai [Wed, 13 Dec 2023 03:34:56 +0000 (11:34 +0800)]
LoongArch: Add testsuit for DESC and tls transition and tls relaxation.
mengqinggang [Mon, 11 Dec 2023 08:08:20 +0000 (16:08 +0800)]
LoongArch: Add support for TLS LD/GD/DESC relaxation
The pcalau12i + addi.d of TLS LD/GD/DESC relax to pcaddi.
Relaxation is only performed when the TLS model transition is not possible.
Lulu Cai [Sun, 26 Nov 2023 06:25:26 +0000 (14:25 +0800)]
LoongArch: Add tls transition support.
Transitions between DESC->IE/LE and IE->LE are supported now.
1. For DESC -> LE:
pcalau12i $a0,%desc_pc_hi20(var) => lu12i.w $a0,%le_hi20(var)
addi.d $a0,$a0,%desc_pc_lo12(var) => ori $a0,$a0,%le_lo12(var)
ld.d $a1,$a0,%desc_ld(var) => NOP
jirl $ra,$a1,%desc_call(var) => NOP
add.d $a0,$a0,$tp
2. For DESC -> IE:
pcalau12i $a0,%desc_pc_hi20(var) => pcalau12i $a0,%ie_pc_hi20(var)
addi.d $a0,$a0,%desc_pc_lo12(var) => ld.d $a0,$a0,%ie_pc_lo12(var)
ld.d $a1,$a0,%desc_ld(var) => NOP
jirl $ra,$a1,%desc_call(var) => NOP
add.d $a0,$a0,$tp
3. For IE -> LE:
pcalau12i $a0,%ie_pc_hi20(var) => lu12i.w $a0,%le_hi20(var)
ld.d $a0,$a0,%ie_pc_lo12(var) => ori $a0,$a0,%le_lo12(var)
add.d $a0,$a0,$tp
4. When a tls variable is accessed using both DESC and IE, DESC transitions
to IE and uses the same GOT entry as IE.
Lulu Cai [Tue, 31 Oct 2023 08:11:56 +0000 (16:11 +0800)]
LoongArch: Add support for TLSDESC in ld.
1.The linker for each DESC generates a R_LARCH_TLS_DESC64 dynamic
relocation, which relocation is placed at .rela.dyn.
TLSDESC always allocates two GOT slots and one dynamic relocation
space to TLSDESC.
2. When using multiple ways to access the same TLS variable, a
maximum of 5 GOT slots are used. For example, using GD, TLSDESC,
and IE to access the same TLS variable, GD always uses the first
two of the five GOT, TLSDESC uses the third and fourth, and IE
uses the last.
Lulu Cai [Tue, 31 Oct 2023 08:11:29 +0000 (16:11 +0800)]
LoongArch: Add new relocs and macro for TLSDESC.
The normal DESC instruction sequence is:
pcalau12i $a0,%desc_pc_hi20(var) #R_LARCH_TLS_DESC_PC_HI20
addi.d $a0,$a0,%desc_pc_lo12(var) #R_LARCH_TLS_DESC_PC_LO12
ld.d $ra,$a0,%desc_ld(var) #R_LARCH_TLS_DESC_LD
jirl $ra,$ra,%desc_call(var) #R_LARCH_TLS_DESC_CALL
add.d $a0,$a0,$tp
GDB Administrator [Mon, 25 Dec 2023 00:00:25 +0000 (00:00 +0000)]
Automatic date update in version.in
Alan Modra [Sun, 24 Dec 2023 04:11:06 +0000 (14:41 +1030)]
Re: LoongArch: Add support for <b ".L1"> and <beq, $t0, $t1, ".L1">
This fixes the buffer overflow added in commit
22b78fad28, and a few
other problems.
* loongarch-coder.c (loongarch_split_args_by_comma): Don't
overflow buffer when args == "". Don't remove unbalanced
quotes. Don't trim last arg if max number of args exceeded.
Simon Marchi [Thu, 21 Dec 2023 16:51:38 +0000 (16:51 +0000)]
gdb: make value::allocate_register_lazy store id of next non-inline frame
Some spots loop on the frame chain to find the first next non-inline
frame, and pass that as the "next frame" to
value::allocate_register_lazy / value::allocate_register. This is
necessary if the value is used in the process of computing the id of
"this frame". If the frame next to "this frame" is inlined into "this
frame", then you that next frame won't have a computed id yet. You have
to go past that to find the next non-inline frame, which will have a
computed id.
In other cases, it's fine to store the id of an inline frame as the
"next frame id" in a register struct value. When trying to unwind a
register from it, it will just call inline_frame_prev_register, which
will forward the request to the next next frame, until we hit the next
physical frame.
I think it would make things simpler to just never store the id of an
inline frame as the next frame id of register struct values, and go with
the first next non-inline frame directly. This way, we don't have to
wonder which code paths have to skip inline frames when creating
register values and which don't.
So, change value::allocate_register_lazy to do that work, and remove the
loops for the callers that did it.
Change-Id: Ic88115dac49dc14e3053c95f92050062b24b7310
Simon Marchi [Sun, 24 Dec 2023 15:38:35 +0000 (10:38 -0500)]
gdb: remove VALUE_REGNUM, add value::regnum
Remove VALUE_REGNUM, replace it with a method on struct value. Set
`m_location.reg.regnum` directly from value::allocate_register_lazy,
which is fine because allocate_register_lazy is a static creation
function for struct value.
Change-Id: Id632502357da971617d9dce1e2eab9b56dbcf52d
Simon Marchi [Wed, 20 Dec 2023 21:40:46 +0000 (21:40 +0000)]
gdb: remove VALUE_NEXT_FRAME_ID, add value::next_frame_id
Remove VALUE_NEXT_FRAME_ID, replace it with a method on struct value. Set
`m_location.reg.next_frame_id` directly from value::allocate_register_lazy,
which is fine because allocate_register_lazy is a static creation
function for struct value.
Change-Id: Ic9f0f239c166a88dccfee836f9f51871e67548e6
Simon Marchi [Thu, 21 Dec 2023 16:32:55 +0000 (16:32 +0000)]
gdb: implement address_from_register using value_from_register
As explained in the comment removed by the previous commit "gdb: pass
non-nullptr frame to gdbarch_value_from_register in
address_from_register", address_from_register copies some implementation
bits from value_from_register:
/* This routine may be called during early unwinding, at a time
where the ID of FRAME is not yet known. Calling value_from_register
would therefore abort in get_frame_id. However, since we only need
a temporary value that is never used as lvalue, we actually do not
really need to set its VALUE_NEXT_FRAME_ID. Therefore, we re-implement
the core of value_from_register, but use the null_frame_id. */
This is no longer relevant, since we now create a value with a valid next
frame id, so change address_from_register to use value_from_register.
Change-Id: I189bd96f28735ed9f47750ffd73764c459ec6f43
Simon Marchi [Thu, 21 Dec 2023 16:28:19 +0000 (16:28 +0000)]
gdb: remove read_frame_register_value's frame parameter
By now, all register struct values should have a valid next frame id
(assuming they are created using value::allocate_register or
value::allocate_register_lazy), so there should be no need to pass a
frame alongside the value to read_frame_register_value. Remove the
frame parameter and adjust read_frame_register_value accordingly.
While at it, make read_frame_register_value static, it's only used in
findvar.c.
Change-Id: I118959ef8c628499297c67810916e8ba9934bfac
Simon Marchi [Thu, 21 Dec 2023 16:21:52 +0000 (16:21 +0000)]
gdb: add type parameter to value::allocate_register and add value::allocate_register_lazy
Some places that create register struct values don't use register_type
to obtain the value type. This prevents them from using the current
version of value::allocate_register. One spot (value_of_register_lazy)
also creates a lazy register value.
Add a value::allocate_register_lazy method. Add some type parameters
to value::allocate_register and value::allocate_register_lazy, to let
the caller specify the type to use for the value. The parameters
default to nullptr, in which case we use register_type to obtain the
type.
Change-Id: I640ec0a5a0f4a55eba12d515dbfd25933229f8ec
Simon Marchi [Thu, 21 Dec 2023 16:10:17 +0000 (16:10 +0000)]
gdb: pass non-nullptr frame to gdbarch_value_from_register in address_from_register
address_from_register used to pass null_frame_id to
gdbarch_value_from_register as "this frame"'s id, because it's possible
for it to be called during unwind, when "this frame"'s id is not yet
known. This create an oddity where those register struct values are
created without a valid next frame id. I would much prefer for things
to be consistent and have all register struct values to have a valid
next frame id.
Since gdbarch_value_from_register takes a frame_info_ptr now, rather
than a frame_id, we can pass down "this frame", even if it doesn't have
a valid id. gdbarch_value_from_register implementations can obtain the
next frame from it.
However, it's possible for the "this frame"'s next frame to be an
inline frame, inlined in "this frame", in which case that next frame's
id is also not known. So, loop until we get to the next non-inline
frame (which is actually the frame where registers for "this frame" are
unwound from). This is the same thing that we do in
value_of_register_lazy, for the same reason. A later patch will factor
out this "while next frame is inline" loop to apply it to all register
struct values, so this is somewhat temporary.
Change-Id: If487c82620cc5a4a4ea5807f0a0bad80ab984078
Simon Marchi [Thu, 21 Dec 2023 16:03:02 +0000 (16:03 +0000)]
gdb: pass frame_info_ptr to gdbarch_value_from_register
Pass a frame_info_ptr rather than a frame_id. This avoids having to do
a frame lookup on the callee side, when we can just pass the frame down
directly.
I think this fixes a bug in rs6000-tdep.c where the id of the wrong
frame was set to `VALUE_NEXT_FRAME_ID (v)`.
Change-Id: I77039bc87ea8fc5262f16d0e1446515efa21c565
Simon Marchi [Wed, 20 Dec 2023 18:18:47 +0000 (18:18 +0000)]
gdb: don't set frame id after calling cooked_read_value
I don't think that setting the next frame id is needed there, all code
paths in cooked_read_value do set it properly, AFAIK.
Change-Id: Idb9d9e6f89c2c95c5ebfeec2a63fde89ed84cf3d
Mike Frysinger [Sun, 24 Dec 2023 10:26:44 +0000 (05:26 -0500)]
sim: cris: rvdummy: delete unused variable
Mike Frysinger [Sun, 24 Dec 2023 10:06:57 +0000 (05:06 -0500)]
sim: cgen: mark cgen_rtx_error noreturn
Since this function never returns, mark it as such to fix some unused
variable warnings in error code paths.
For example, cris triggers:
sim/cris/semcrisv10f-switch.c:3558:11: error:
variable 'tmp_newval' is used uninitialized whenever 'if' condition is false [-Werror,-Wsometimes-uninitialized]
Even though it has an "else" path that calls this error function.
Mike Frysinger [Sun, 24 Dec 2023 09:07:32 +0000 (04:07 -0500)]
sim: cgen: regenerate decode tables
Integrate some changes from upstream cgen that tightened up the
generated output. Shouldn't be any functional changes here.
Mike Frysinger [Sun, 24 Dec 2023 08:59:02 +0000 (03:59 -0500)]
sim: sh: refine pwsb & pwad nops
Since these insns don't do anything and are effectively ignored,
return early to avoid doing any common processing at the end as
that requires initializing variables like "res" with something.
Mike Frysinger [Sun, 24 Dec 2023 08:53:03 +0000 (03:53 -0500)]
sim: sh: fix plds Dz,MACL implementation
The plds Dz,MACL insn stores the Dz bit into MACL. The current code
was storing the "res" variable into Dz and then into MACL, but not
setting "res" to anything. Delete that logic and make it match the
existing plds Dz,MACH insn.
GDB Administrator [Sun, 24 Dec 2023 00:00:11 +0000 (00:00 +0000)]
Automatic date update in version.in
Mike Frysinger [Sat, 23 Dec 2023 06:00:08 +0000 (01:00 -0500)]
sim: warnings: rework individual flag disable into dedicated vars
The -Wshadow=local is too new for some compilers, so move it to a var
that we test at configure time.
Vladimir Mezentsev [Fri, 22 Dec 2023 05:33:58 +0000 (21:33 -0800)]
gprofng: fix build problems on linux-musl
ino64_t, off64_t, fpos64_t, stat64, __u64 are not defined on linux-musl.
Fixed by declaring these types for linux-musl.
2023-12-21 Vladimir Mezentsev <vladimir.mezentsev@oracle.com>
PR gprofng/30779
PR gprofng/29593
* common/gp-defs.h: Define ino64_t, off64_t, fpos64_t for linux-musl.
* libcollector/unwind.c: Define __u64 for linux-musl.
* src/util.h: Define dbe_stat_t.
* src/ClassFile.cc: Use dbe_stat_t instead of "struct stat64".
* src/Dbe.cc: Likewise.
* src/DbeFile.cc: Likewise.
* src/DbeFile.h: Likewise.
* src/DbeSession.cc: Likewise.
* src/Experiment.cc: Likewise.
* src/checks.cc: Likewise.
* src/util.cc: Likewise.
Mike Frysinger [Fri, 22 Dec 2023 01:14:34 +0000 (20:14 -0500)]
sim: sh: fix -Wshadow=local warnings
Rename the var to avoid shadowing & clobbering the higher context.
Mike Frysinger [Fri, 22 Dec 2023 01:13:56 +0000 (20:13 -0500)]
sim: riscv: fix -Wshadow=local warnings
Inline the one usage of sd in these macros to avoid possible shadowing.
Mike Frysinger [Fri, 22 Dec 2023 01:13:19 +0000 (20:13 -0500)]
sim: ppc: fix -Wshadow=local warnings
Use a local name in the macro to avoid shadowing wherever it's used.
Mike Frysinger [Fri, 22 Dec 2023 01:12:59 +0000 (20:12 -0500)]
sim: mips: fix -Wshadow=local warnings
Delete redundant decls when the existing scope has the same var and
type available for use.
Mike Frysinger [Fri, 22 Dec 2023 01:12:25 +0000 (20:12 -0500)]
sim: m68hc11: fix -Wshadow=local warnings
Delete redundant decls when the existing scope has the same var and
type available for use.
Mike Frysinger [Fri, 22 Dec 2023 23:05:50 +0000 (18:05 -0500)]
sim: m32c: fix -Wshadow=local warnings
These decoders declare a lot of common variables for use by substeps,
and then shadows a few because of how the opc generator is implemented.
Easiest way around it is to rename the per-substep vars as needed as
anything more would require substantial changes to the opc logic.
Mike Frysinger [Fri, 22 Dec 2023 01:10:58 +0000 (20:10 -0500)]
sim: iq2000: fix -Wshadow=local warnings
Delete redundant decls.
Mike Frysinger [Fri, 22 Dec 2023 01:10:20 +0000 (20:10 -0500)]
sim: h8300: fix -Wshadow=local warnings
Delete conflicting decls when the existing scope has vars of the same
name & type for this exact use.
Mike Frysinger [Fri, 22 Dec 2023 01:09:50 +0000 (20:09 -0500)]
sim: frv: fix -Wshadow=local warnings
Delete redundant decls, and rename conflicting vars.
Mike Frysinger [Fri, 22 Dec 2023 01:09:00 +0000 (20:09 -0500)]
sim: erc32: fix -Wshadow=local warnings
Rename shadowed vars with different types to avoid confusion.
Mike Frysinger [Sat, 23 Dec 2023 04:17:45 +0000 (23:17 -0500)]
sim: cris: disable -Wshadow=local in generated mloop files
The mloop files include CGEN generated switch files which have some
nested assignments that expand into repeated shadowed variables.
Fixing this looks fairly non-trivial as it appears to be interplay
between the common CGEN code and how this particular set of cris
insns are defined. Disable the warning instead.
In file included from sim/cris/mloop.in:286:
sim/cris/semcrisv10f-switch.c: In function ‘crisv10f_engine_run_full’:
sim/cris/semcrisv10f-switch.c:12383:8: error: declaration of ‘opval’ shadows a previous local [-Werror=shadow=local]
12383 | SI opval = tmp_addr;
| ^~~~~
sim/cris/semcrisv10f-switch.c:12371:9: note: shadowed declaration is here
12371 | USI opval = ({ SI tmp_addr;
| ^~~~~
And the code looks like:
USI opval = ({
...
{
SI opval = tmp_addr;
...
}
...
});
Since the CGEN code treats "opval" as an internal variable that the cpu
definitions don't have direct access to, the likelihood of this being a
real bug is low, so leave it be. The warning is suppressed for more code
that is hand written (e.g. the mloop logic), but disabling for the entire
file is the easiest way to suppress while keeping it on everywhere else in
the sim.
Mike Frysinger [Fri, 22 Dec 2023 01:08:35 +0000 (20:08 -0500)]
sim: cris: fix -Wshadow=local warnings
Delete redundant local decls.
Mike Frysinger [Fri, 22 Dec 2023 01:07:48 +0000 (20:07 -0500)]
sim: common: fix -Wshadow=local warnings
Rename shadowed vars with different types, and delete redundant decls.
Mike Frysinger [Fri, 22 Dec 2023 01:07:00 +0000 (20:07 -0500)]
sim: bfin: fix -Wshadow=local warnings
Rename the shadowed var to avoid confusion with the function argument
as to which address this code is using.
Mike Frysinger [Fri, 22 Dec 2023 01:03:41 +0000 (20:03 -0500)]
sim: arm: fix -Wshadow=local warnings
Remove duplicate nested variable declarations, rename some to avoid
confusion when the type is different or the original value should be
retained, and fix some weirdness with nested enums in structs.
Mike Frysinger [Fri, 22 Dec 2023 01:01:31 +0000 (20:01 -0500)]
sim: aarch64: fix -Wshadow=local warnings
These functions have local vars named "val" of type float, and
then create nested vars named "val" of type double. This is a
bit confusing and causes build time warnings.