Some tests expect the the target is aarch64, but checking target
triplet is not accurate, because target triplet can be aarch64 but
the program is in arm (or aarch32) state.
This patch addes a new proc is_aarch64_target which returns true
if the target is on aarch64 state.
gdb/testsuite:
2015-07-07 Yao Qi <yao.qi@linaro.org>
* gdb.arch/aarch64-atomic-inst.exp: Check is_aarch64_target
instead of istarget "aarch64*-*-*".
* gdb.arch/aarch64-fp.exp: Likewise.
* gdb.base/float.exp: Likewise.
* gdb.reverse/aarch64.exp: Likewise.
* lib/gdb.exp (is_aarch64_target): New proc.
GDB tests running on arm target should be also run on aarch32
(32-bit mode on aarch64). There should be no difference. It is not
precise to check target triplet to decide which tests should be run,
because if I compiler all the test binary in 32-bit (arm program),
but target triplet is still aarch64, so that these arm specific tests
are skipped.
This patch is to add a new proc is_aarch32_target which return true
if target triplet is arm or the test binary is compiled for arm.
gdb/testsuite:
2015-07-07 Yao Qi <yao.qi@linaro.org>
* lib/gdb.exp (is_aarch32_target): New proc.
* gdb.arch/arm-bl-branch-dest.exp: Check is_aarch32_target
instead of "istarget "arm*-*-*"".
* gdb.arch/arm-disp-step.exp: Likewise.
* gdb.arch/thumb-bx-pc.exp: Likewise.
* gdb.arch/thumb-prologue.exp: Likewise.
* gdb.arch/thumb-singlestep.exp: Likewise.
* gdb.base/disp-step-syscall.exp: Likewise.
* gdb.base/float.exp: Likewise.
This patch is the V2. V1 can be found in
https://sourceware.org/ml/gdb-patches/2012-05/msg00938.html
V2 is to address Joel's comment
<https://sourceware.org/ml/gdb-patches/2012-06/msg00289.html> about
keeping dumping floating point registers. Additionally, command
'info float' prints bits on nan2008 and abs2008.
------------------------------------------------------------------
The change below provides a MIPS-specific handler for the:
(gdb) info float
command. It provides information about the FPU type available (if any),
the FPU register width, and decodes the CP1 Floating Point Control and
Status Register (FCSR):
(gdb) print /x $fsr
$1 = 0xff83ffff
(gdb) info float
fpu type: double-precision
reg size: 32 bits
cond : 0 1 2 3 4 5 6 7
cause : inexact uflow oflow div0 inval unimp
mask : inexact uflow oflow div0 inval
flags : inexact uflow oflow div0 inval
rounding: -inf
flush : zero
One point to note about CP1.FCSR are the non-standard Flush-to-Nearest
and Flush-Override bits. They are not a part of the MIPS architecture and
take two positions reserved for an implementation-dependent use in the
architecture. They are present in all the FPU implementations made by
MIPS Technologies since the spin-off from SGI.
I haven't been able to track down a single other MIPS FPU implementation
that would make any use of these bits and they are required to be
hardwired to zero by the architecture specification if unimplemented.
Therefore I think it makes sense to report them in the current way.
GDB has no guaranteed access to the CP0 Processor Identification (PRId)
register to validate this feature properly and the ID information stored
in the CP1 Floating Point Implementation Register (FIR) is from my
experience not reliable enough (there's no Company ID available there for
once unlike in CP0.PRId and Processor ID is not guaranteed to be unique).
As a side note we should probably dump CP1.FIR information as well, as
there's useful stuff indicating some FPU features there. That's material
for another change however.
gdb/
2014-12-18 Nigel Stephens <nigel@mips.com>
Maciej W. Rozycki <macro@codesourcery.com>
* mips-tdep.c (print_fpu_flags): New function.
(mips_print_float_info): Likewise.
(mips_gdbarch_init): Install mips_print_float_info as gdbarch
print_float_info routine.
gdb/testsuite/
2014-12-18 Nigel Stephens <nigel@mips.com>
Maciej W. Rozycki <macro@codesourcery.com>
* gdb.base/float.exp: Handle the new output from "info float" on
MIPS targets.
Two modifications:
1. The addition of 2013 to the copyright year range for every file;
2. The use of a single year range, instead of potentially multiple
year ranges, as approved by the FSF.
PR gdb/13045
* doublest.c (convert_doublest_to_floatformat): Pass correct
mantissa length to put_field.
testsuite/ChangeLog:
2011-07-30 Paul Pluzhnikov <ppluzhnikov@google.com>
PR gdb/13045
* gdb.base/float.exp: Add new test case for PR gdb/13045
* gdb.base/float.c: New file.
Fix racy clashing of output files for gdb.base{1,2}/ parallel run.
* gdb.base/annota1.exp (thread_test): Import global $testfile.
Change the compilation target to match the testcase name.
* gdb.base/sect-cmd.exp: Change the compilation target to match the
testcase name.
* a2-run.exp: Use for setup prepare_for_testing. Change the
compilation target to match the testcase name.
* gdb.base/commands.exp: Likewise.
* gdb.base/finish.exp: Likewise.
* gdb.base/float.exp: Likewise.
* gdb.base/info-target.exp: Likewise.
* gdb.base/relational.exp: Likewise.
* gdb.base/term.exp: Likewise.
* gdb.base/until.exp: Likewise.
* gdb.base/volatile.exp: Likewise.
* gdb.base/whatis-exp.exp: Likewise.
gdb,no_hardware_watchpoints.
* gdb.base/float.exp: Allow ARM targets without floating point.
* gdb.base/step-test.exp: Allow callee@plt when stepping in.
Committed by Jim Blandy <jimb@redhat.com>.
* config/s390/nm-linux.h: Update comments. Do not include "solib.h".
(KERNEL_U_ADDR, REGISTER_U_ADDR, U_REGS_OFFSET): Remove.
(FETCH_INFERIOR_REGISTERS): Define.
* config/s390/s390.mh (NATDEPFILES): Remove core-aout.o and
core-regset.o.
* config/s390/s390x.mt: Remove.
* config/s390/tm-s390.h: Remove.
* config/s390/tm-linux.h: Do not include "s390/tm-s390.h".
(TARGET_ELF64): Remove.
(SKIP_TRAMPOLINE_CODE): Do not undefine.
* configure.tgt [s390-*-*, s390x-*-*]: Merge into single
s390*-*-* case; always set gdb_target to s390.
* regformats/reg-s390.dat: Remove control registers.
* regformats/reg-s390x.dat: Likewise.
* s390-tdep.h: New file.
* s390-nat.c: Do not include <asm/processor.h> or <value.h>.
Include "inferior.h" and "s390-tdep.h".
Remove private definition of offsetof.
(s390_register_u_addr): Remove.
(regmap_gregset, regmap_fpregset): Define.
(supply_gregset, fill_gregset): Reimplement.
(supply_fpregset, fill_fpregset): Likewise.
(s390_inferior_tid): New function.
(fetch_regs, store_regs, fetch_fpregs, store_fpregs): Likewise.
(fetch_inferior_registers, store_inferior_registers): Likewise.
* s390-tdep.c: Do not define S390_TDEP. Include "defs.h" instead
of <defs.h>. Include "reggroups.h", "regset.h", and "s390-tdep.h".
Global replace of S390_GP0_REGNUM by S390_R0_REGNUM.
Global replace of S390_FP0_REGNUM by S390_F0_REGNUM.
(struct gdbarch_tdep): Define.
(struct s390_register_info): Define.
(s390_register_info): New variable.
(s390_register_name): Reimplement.
(s390_register_type): New function.
(s390_register_raw_size, s390x_register_raw_size): Remove.
(s390_cannot_fetch_register): Remove.
(s390_register_byte): Remove.
(s390_register_virtual_type, s390x_register_virtual_type): Remove.
(s390_dwarf_regmap): New variable.
(s390_dwarf_reg_to_regnum): New function.
(s390_stab_reg_to_regnum): Remove.
(s390_pseudo_register_read, s390_pseudo_register_write): New functions.
(s390x_pseudo_register_read, s390x_pseudo_register_write): Likewise.
(s390_convert_register_p): Likewise.
(s390_register_to_value, s390_value_to_register): Likewise.
(s390_register_reggroup_p): Likewise.
(s390_regmap_gregset, s390x_regmap_gregset, s390_regmap_fpregset,
s390_gregset, s390x_gregset, s390_fpregset): New variables.
(s390_supply_regset, s390_regset_from_core_section): New functions.
(GDB_TARGET_IS_ESAME): Move here from tm-s390.h.
(S390_FPR_SIZE): Likewise.
(S390_GPR_SIZE): Likewise. Redefine in terms of GDB_TARGET_IS_ESAME.
Global replace of DEPRECATED_REGISTER_SIZE by S390_GPR_SIZE.
(S390_NUM_GPRS): Move here from tm-s390.h.
(S390_NUM_FPRS): Likewise.
(s390_in_function_epilogue_p): New function.
(s390_is_sigreturn): Replace S390_PSW_ADDR_SIZE by S390_GPR_SIZE.
Replace S390_PC_REGNUM by S390_PSWA_REGNUM.
(s390_gdbarch_init): Allocate and set up gdbarch_tdep structure.
Replace s390_stab_reg_to_regnum by s390_dwarf_reg_to_regnum.
Replace S390_FP_REGNUM by S390_SP_REGNUM.
Remove calls to:
set_gdbarch_deprecated_max_register_raw_size,
set_gdbarch_deprecated_max_register_virtual_size,
set_gdbarch_deprecated_register_byte,
set_gdbarch_cannot_fetch_register,
set_gdbarch_cannot_store_register,
set_gdbarch_deprecated_register_size,
set_gdbarch_deprecated_register_raw_size,
set_gdbarch_deprecated_register_virtual_size,
set_gdbarch_deprecated_register_virtual_type,
set_gdbarch_deprecated_register_bytes.
Add calls to:
set_gdbarch_num_pseudo_regs,
set_gdbarch_register_type,
set_gdbarch_convert_register_p,
set_gdbarch_register_to_value,
set_gdbarch_value_to_register,
set_gdbarch_register_reggroup_p,
set_gdbarch_regset_from_core_section,
set_gdbarch_pseudo_register_read,
set_gdbarch_pseudo_register_write,
set_gdbarch_in_function_epilogue_p.
* Makefile.in (s390-nat.o, s390-tdep.o): Update dependencies.
(s390_tdep_h): New variable.
to that command. Add test for "info vector".
* gdb.base/float.exp: New file. Add test for "info float" that
resembles the old test in gdb.base/default.exp.