This commit applies all changes made after running the gdb/copyright.py
script.
Note that one file was flagged by the script, due to an invalid
copyright header
(gdb/unittests/basic_string_view/element_access/char/empty.cc).
As the file was copied from GCC's libstdc++-v3 testsuite, this commit
leaves this file untouched for the time being; a patch to fix the header
was sent to gcc-patches first.
gdb/ChangeLog:
Update copyright year range in all GDB files.
For GNU/Linux on x86-64, if the target is using the xsave format for
passing the floating-point information from the inferior then there
currently exists a bug relating to the x87 control registers, and the
mxcsr register.
The xsave format allows different floating-point features to be lazily
enabled, a bit in the xsave format tells GDB which floating-point
features have been enabled, and which have not.
Currently in GDB, when reading the floating point state, we check the
xsave bit flags, if the feature is enabled then we read the feature
from the xsave buffer, and if the feature is not enabled, then we
supply the default value from within GDB.
Within GDB, when writing the floating point state, we first fetch the
xsave state from the target and then, for any feature that is not yet
enabled, we write the default values into the xsave buffer. Next we
compare the regcache value with the value in the xsave buffer, and, if
the value has changed we update the value in the xsave buffer, and
mark the feature enabled in the xsave bit flags.
The problem then, is that the x87 control registers were not following
this pattern. We assumed that these registers were always written out
by the kernel, and we always wrote them out to the xsave buffer (but
didn't enabled the feature). The result of this is that if the kernel
had not yet enabled the x87 feature then within GDB we would see
random values for the x87 floating point control registers, and if the
user tried to modify one of these register, that modification would be
lost.
Finally, the mxcsr register was also broken in the same way as the x87
control registers. The added complexity with this case is that the
mxcsr register is part of both the avx and sse floating point feature
set. When reading or writing this register we need to check that at
least one of these features is enabled.
This bug was present in native GDB, and within gdbserver. Both are
fixed with this commit.
gdb/ChangeLog:
* common/x86-xstate.h (I387_FCTRL_INIT_VAL): New constant.
(I387_MXCSR_INIT_VAL): New constant.
* amd64-tdep.c (amd64_supply_xsave): Only read state from xsave
buffer if it was supplied by the inferior.
* i387-tdep.c (i387_supply_fsave): Use I387_MXCSR_INIT_VAL.
(i387_xsave_get_clear_bv): New function.
(i387_supply_xsave): Only read x87 control registers from the
xsave buffer if the feature is enabled, and the state will have
been written, otherwise, provide a suitable default.
(i387_collect_xsave): Pre-clear all registers in xsave buffer,
including x87 control registers. Update control registers if they
have changed from the default value, and mark features as enabled
as required.
* i387-tdep.h (i387_xsave_get_clear_bv): Declare.
gdb/gdbserver/ChangeLog:
* i387-fp.c (i387_cache_to_xsave): Only write x87 control
registers to the cache if their values have changed.
(i387_xsave_to_cache): Provide default values for x87 control
registers when these features are available, but disabled.
* regcache.c (supply_register_by_name_zeroed): New function.
* regcache.h (supply_register_by_name_zeroed): Declare new
function.
gdb/testsuite/ChangeLog:
* gdb.arch/amd64-init-x87-values.S: New file.
* gdb.arch/amd64-init-x87-values.exp: New file.
This patch initializes the BND registers before executing the inferior
call. BND registers can be in arbitrary values at the moment of the
inferior call. In case the function being called uses as part of the
parameters BND register, e.g. when passing a pointer as parameter, the
current value of the register will be used. This can cause boundary
violations that are not due to a real bug or even desired by the user.
In this sense the best to be done is set the BND registers to allow
access to the whole memory, i.e. initialized state, before pushing the
inferior call.
2017-03-07 Walfred Tedeschi <walfred.tedeschi@intel.com>
gdb/ChangeLog:
* i387-tdep.h (i387_reset_bnd_regs): Add function definition.
* i387-tdep.c (i387_reset_bnd_regs): Add function implementation.
* i386-tdep.c (i386_push_dummy_call): Call i387_reset_bnd_regs.
* amd64-tdep (amd64_push_dummy_call): Call i387_reset_bnd_regs.
gdb/testsuite/ChangeLog:
* i386-mpx-call.c: New file.
* i386-mpx-call.exp: New file.
gdb/doc/ChangeLog:
* Memory Protection Extensions: Add information about inferior
calls.
This applies the second part of GDB's End of Year Procedure, which
updates the copyright year range in all of GDB's files.
gdb/ChangeLog:
Update copyright year range in all GDB files.
This patch adds support for the Intel(R) Advanced Vector
Extensions 512 (Intel(R) AVX-512) registers. Native and remote
debugging are covered by this patch.
Intel(R) AVX-512 is an extension to AVX to support 512-bit wide
SIMD registers in 64-bit mode (XMM0-XMM31, YMM0-YMM31, ZMM0-ZMM31).
The number of available registers in 32-bit mode is still 8
(XMM0-7, YMM0-7, ZMM0-7). The lower 256-bits of the ZMM registers
are aliased to the respective 256-bit YMM registers. The lower
128-bits are aliased to the respective 128-bit XMM registers.
There are also 8 new, dedicated mask registers (K0-K7) in both 32-bit
mode and 64-bit mode.
For more information please see
Intel(R) Developer Zone: Intel(R) AVX
http://software.intel.com/en-us/intel-isa-extensions#pid-16007-1495
Intel(R) Architecture Instruction Set Extensions Programming Reference:
http://software.intel.com/en-us/file/319433-017pdf
2014-04-24 Michael Sturm <michael.sturm@mintel.com>
Walfred Tedeschi <walfred.tedeschi@intel.com>
* amd64-linux-nat.c (amd64_linux_gregset32_reg_offset): Add
AVX512 registers.
(amd64_linux_read_description): Add code to handle AVX512 xstate
mask and return respective tdesc.
* amd64-linux-tdep.c: Include features/i386/amd64-avx512-linux.c
and features/i386/x32-avx512-linux.c.
(amd64_linux_gregset_reg_offset): Add AVX512 registers.
(amd64_linux_core_read_description): Add code to handle AVX512
xstate mask and return respective tdesc.
(_initialize_amd64_linux_tdep): Initialize AVX512 tdesc.
* amd64-linux-tdep.h (AMD64_LINUX_ORIG_RAX_REGNUM): Adjust regnum
calculation.
(AMD64_LINUX_NUM_REGS): Adjust to new number of registers.
(tdesc_amd64_avx512_linux): New prototype.
(tdesc_x32_avx512_linux): Likewise.
* amd64-tdep.c: Include features/i386/amd64-avx512.c and
features/i386/x32-avx512.c.
(amd64_ymm_avx512_names): New register names for pseudo
registers YMM16-31.
(amd64_ymmh_avx512_names): New register names for raw registers
YMMH16-31.
(amd64_k_names): New register names for K registers.
(amd64_zmmh_names): New register names for ZMM raw registers.
(amd64_zmm_names): New registers names for ZMM pseudo registers.
(amd64_xmm_avx512_names): New register names for XMM16-31
registers.
(amd64_pseudo_register_name): Add code to return AVX512 pseudo
registers.
(amd64_init_abi): Add code to intitialize AVX512 tdep variables
if feature is present.
(_initialize_amd64_tdep): Call AVX512 tdesc initializers.
* amd64-tdep.h (enum amd64_regnum): Add AVX512 registers.
(AMD64_NUM_REGS): Adjust to new number of registers.
* i386-linux-nat.c (GETXSTATEREGS_SUPPLIES): Extend range of
registers supplied via XSTATE by AVX512 registers.
(i386_linux_read_description): Add case for AVX512.
* i386-linux-tdep.c: Include i386-avx512-linux.c.
(i386_linux_gregset_reg_offset): Add AVX512 registers.
(i386_linux_core_read_description): Add case for AVX512.
(i386_linux_init_abi): Install supported register note section
for AVX512.
(_initialize_i386_linux_tdep): Add call to tdesc init function for
AVX512.
* i386-linux-tdep.h (I386_LINUX_NUM_REGS): Set number of
registers to be number of zmm7h + 1.
(tdesc_i386_avx512_linux): Add tdesc for AVX512 registers.
* i386-tdep.c: Include features/i386/i386-avx512.c.
(i386_zmm_names): Add ZMM pseudo register names array.
(i386_zmmh_names): Add ZMM raw register names array.
(i386_k_names): Add K raw register names array.
(num_lower_zmm_regs): Add constant for the number of lower ZMM
registers. AVX512 has 16 more ZMM registers than there are YMM
registers.
(i386_zmmh_regnum_p): Add function to look up register number of
ZMM raw registers.
(i386_zmm_regnum_p): Likewise for ZMM pseudo registers.
(i386_k_regnum_p): Likewise for K raw registers.
(i386_ymmh_avx512_regnum_p): Likewise for additional YMM raw
registers added by AVX512.
(i386_ymm_avx512_regnum_p): Likewise for additional YMM pseudo
registers added by AVX512.
(i386_xmm_avx512_regnum_p): Likewise for additional XMM registers
added by AVX512.
(i386_register_name): Add code to hide YMMH16-31 and ZMMH0-31.
(i386_pseudo_register_name): Add ZMM pseudo registers.
(i386_zmm_type): Construct and return vector registers type for ZMM
registers.
(i386_pseudo_register_type): Return appropriate type for YMM16-31,
ZMM0-31 pseudo registers and K registers.
(i386_pseudo_register_read_into_value): Add code to read K, ZMM
and YMM16-31 registers from register cache.
(i386_pseudo_register_write): Add code to write K, ZMM and
YMM16-31 registers.
(i386_register_reggroup_p): Add code to include/exclude AVX512
registers in/from respective register groups.
(i386_validate_tdesc_p): Handle AVX512 feature, add AVX512
registers if feature is present in xcr0.
(i386_gdbarch_init): Add code to initialize AVX512 feature
variables in tdep structure, wire in pseudo registers and call
initialize_tdesc_i386_avx512.
* i386-tdep.h (struct gdbarch_tdep): Add AVX512 related
variables.
(i386_regnum): Add AVX512 registers.
(I386_SSE_NUM_REGS): New define for number of SSE registers.
(I386_AVX_NUM_REGS): Likewise for AVX registers.
(I386_AVX512_NUM_REGS): Likewise for AVX512 registers.
(I386_MAX_REGISTER_SIZE): Change to 64 bytes, ZMM registers are
512 bits wide.
(i386_xmm_avx512_regnum_p): New prototype for register look up.
(i386_ymm_avx512_regnum_p): Likewise.
(i386_k_regnum_p): Likewise.
(i386_zmm_regnum_p): Likewise.
(i386_zmmh_regnum_p): Likewise.
* i387-tdep.c : Update year in copyright notice.
(xsave_ymm_avx512_offset): New table for YMM16-31 offsets in
XSAVE buffer.
(XSAVE_YMM_AVX512_ADDR): New macro.
(xsave_xmm_avx512_offset): New table for XMM16-31 offsets in
XSAVE buffer.
(XSAVE_XMM_AVX512_ADDR): New macro.
(xsave_avx512_k_offset): New table for K register offsets in
XSAVE buffer.
(XSAVE_AVX512_K_ADDR): New macro.
(xsave_avx512_zmm_h_offset): New table for ZMM register offsets
in XSAVE buffer.
(XSAVE_AVX512_ZMM_H_ADDR): New macro.
(i387_supply_xsave): Add code to supply AVX512 registers to XSAVE
buffer.
(i387_collect_xsave): Add code to collect AVX512 registers from
XSAVE buffer.
* i387-tdep.h (I387_NUM_XMM_AVX512_REGS): New define for number
of XMM16-31 registers.
(I387_NUM_K_REGS): New define for number of K registers.
(I387_K0_REGNUM): New define for K0 register number.
(I387_NUM_ZMMH_REGS): New define for number of ZMMH registers.
(I387_ZMM0H_REGNUM): New define for ZMM0H register number.
(I387_NUM_YMM_AVX512_REGS): New define for number of YMM16-31
registers.
(I387_YMM16H_REGNUM): New define for YMM16H register number.
(I387_XMM16_REGNUM): New define for XMM16 register number.
(I387_YMM0_REGNUM): New define for YMM0 register number.
(I387_KEND_REGNUM): New define for last K register number.
(I387_ZMMENDH_REGNUM): New define for last ZMMH register number.
(I387_YMMH_AVX512_END_REGNUM): New define for YMM31 register
number.
(I387_XMM_AVX512_END_REGNUM): New define for XMM31 register
number.
* common/i386-xstate.h: Add AVX 3.1 feature bits, mask and XSTATE
size.
* features/Makefile: Add AVX512 related files.
* features/i386/32bit-avx512.xml: New file.
* features/i386/64bit-avx512.xml: Likewise.
* features/i386/amd64-avx512-linux.c: Likewise.
* features/i386/amd64-avx512-linux.xml: Likewise.
* features/i386/amd64-avx512.c: Likewise.
* features/i386/amd64-avx512.xml: Likewise.
* features/i386/i386-avx512-linux.c: Likewise.
* features/i386/i386-avx512-linux.xml: Likewise.
* features/i386/i386-avx512.c: Likewise.
* features/i386/i386-avx512.xml: Likewise.
* features/i386/x32-avx512-linux.c: Likewise.
* features/i386/x32-avx512-linux.xml: Likewise.
* features/i386/x32-avx512.c: Likewise.
* features/i386/x32-avx512.xml: Likewise.
* regformats/i386/amd64-avx512-linux.dat: New file.
* regformats/i386/amd64-avx512.dat: Likewise.
* regformats/i386/i386-avx512-linux.dat: Likewise.
* regformats/i386/i386-avx512.dat: Likewise.
* regformats/i386/x32-avx512-linux.dat: Likewise.
* regformats/i386/x32-avx512.dat: Likewise.
* NEWS: Add note about new support for AVX512.
testsuite/
* Makefile.in (EXECUTABLES): Added i386-avx512.
* gdb.arch/i386-avx512.c: New file.
* gdb.arch/i386-avx512.exp: Likewise.
gdbserver/
* Makefile.in: Added rules to handle new files
i386-avx512.c i386-avx512-linux.c amd64-avx512.c
amd64-avx512-linux.c x32-avx512.c x32-avx512-linux.c.
* configure.srv (srv_i386_regobj): Add i386-avx512.o.
(srv_i386_linux_regobj): Add i386-avx512-linux.o.
(srv_amd64_regobj): Add amd64-avx512.o and x32-avx512.o.
(srv_amd64_linux_regobj): Add amd64-avx512-linux.o and
x32-avx512-linux.o.
(srv_i386_32bit_xmlfiles): Add i386/32bit-avx512.xml.
(srv_i386_64bit_xmlfiles): Add i386/64bit-avx512.xml.
(srv_amd64_xmlfiles): Add i386/amd64-avx512.xml and
i386/x32-avx512.xml.
(srv_i386_linux_xmlfiles): Add i386/i386-avx512-linux.xml.
(srv_amd64_linux_xmlfiles): Add i386/amd64-avx512-linux.xml and
i386/x32-avx512-linux.xml.
* i387-fp.c (num_avx512_k_registers): New constant for number
of K registers.
(num_avx512_zmmh_low_registers): New constant for number of
lower ZMM registers (0-15).
(num_avx512_zmmh_high_registers): New constant for number of
higher ZMM registers (16-31).
(num_avx512_ymmh_registers): New contant for number of higher
YMM registers (ymm16-31 added by avx521 on x86_64).
(num_avx512_xmm_registers): New constant for number of higher
XMM registers (xmm16-31 added by AVX512 on x86_64).
(struct i387_xsave): Add space for AVX512 registers.
(i387_cache_to_xsave): Change raw buffer size to 64 characters.
Add code to handle AVX512 registers.
(i387_xsave_to_cache): Add code to handle AVX512 registers.
* linux-x86-low.c (init_registers_amd64_avx512_linux): New
prototypei from generated file.
(tdesc_amd64_avx512_linux): Likewise.
(init_registers_x32_avx512_linux): Likewise.
(tdesc_x32_avx512_linux): Likewise.
(init_registers_i386_avx512_linux): Likewise.
(tdesc_i386_avx512_linux): Likewise.
(x86_64_regmap): Add AVX512 registers.
(x86_linux_read_description): Add code to handle AVX512 XSTATE
mask.
(initialize_low_arch): Add code to initialize AVX512 registers.
doc/
* gdb.texinfo (i386 Features): Add description of AVX512
registers.
Change-Id: Ifc4c08c76b85dbec18d02efdbe6182e851584438
Signed-off-by: Michael Sturm <michael.sturm@intel.com>
2013-11-20 Walfred Tedeschi <walfred.tedeschi@intel.com>
* i386-linux-nat.c (GETXSTATEREGS_SUPPLIES): Add MPX
registers on the range of registers to be read from
xsave buffer.
(i386_linux_read_description): Add case for MPX.
* i386-linux-tdep.c: Include features/i386/i386-mpx-linux.c.
(i386_linux_gregset_reg_offset): Add MPX registers.
(i386_linux_core_read_description): Initialize also MPX.
(_initialize_i386_linux_tdep): Add mpx initialization.
* i386-tdep.h (gdbarch_tdep): Add fields bnd0r_regnum, bnd0_regnum,
mpx_register_names.
(i386_regnum): Add MPX registers.
(I386_MPX_NUM_REGS): New macro.
(i386_bnd_regnum_p): New function.
* i386-linux-tdep.h (I386_LINUX_NUM_REGS): Set
number of registers to be the number of BNDSTATUS.
(tdesc_i386_mpx_linux): Add description for MPX Linux registers.
* i386-tdep.c: Include features/i386/i386-mpx.c.
(i386_mpx_names): Add MPX register names array.
(i386_bnd_names): Add bnd pseudo register names array.
(i386_bndr_regnum_p): Lookup register numbers for bnd raw
registers.
(i386_bndr_regnum_p): Lookup register numbers for bnd raw registers.
(386_mpx_ctrl_regnum_p): Lookup register numbers for MPX control
registers.
(i386_bnd_type): New function.
(i386_pseudo_register_type): Use i386_bnd_type for bnd pseudo
register types.
(i386_pseudo_register_read_into_value): Add bnd case.
(i386_pseudo_register_write): Add bnd pseudo registers.
(i386_register_reggroup_p): Add MPX register to the group all.
(i386_validate_tdesc_p): Add MPX to the target description
validation.
(i386_pseudo_register_name): Add bnd pseudo registers.
(i386_gdbarch_init): Add MPX for architecture initialization.
(_initia_initialize_i386_tdep): Add mpx initialization.
* i387-tdep.c (xsave_mpx_offset): New vector for MPX offsets on
XSAVE buffer.
(XSAVE_MPX_ADDR): New macro.
(i387_supply_xsave): Add MPX case.
(i387_collect_xsave): Add MPX case.
* i387-tdep.h (I387_BND0R_REGNUM): New macro.
(I387_BNDCFGU_REGNUM): New macro.
(I387_NUM_MPX_REGS): New macro.
(I387_NUM_BND_REGS): New macro.
(I387_NUM_MPX_CTRL_REGS): New macro.
(I387_MPXEND_REGNUM): New macro.
* common/i386-xstate.h (I386_XSTATE_BNDREGS): New macro.
(I386_XSTATE_BNDCFG): Likewise.
(I386_XSTATE_MPX_MASK): Likewise.
(I386_XSTATE_ALL_MASK): New macro represents flags for all states.
(I386_XSTATE_BNDREGS_SIZE): New macro.
(I386_XSTATE_BNDCFG_SIZE): Likewise.
(I386_XSTATE_SIZE): Adapt for MPX.
(I386_XSTATE_MAX_SIZE): Likewise.
Change-Id: I9ddb7d49434d86fa18eb6b99515203d7c567aefd
Signed-off-by: Walfred Tedeschi <walfred.tedeschi@intel.com>
Conflicts:
gdb/ChangeLog
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.
* dwarf2loc.c (read_pieced_value): Handle get_frame_register_bytes
returning that the register piece is unavailable/optimized out.
(write_pieced_value): Handle get_frame_register_bytes returning
that the register piece is unavailable/optimized out when doing a
read-modify write of a bitfield.
* findvar.c (value_from_register): Handle get_frame_register_bytes
returning that the register piece is unavailable/optimized out.
* frame.c (get_frame_register_bytes): New parameters `optimizedp'
and `unavailablep'. Throw error on bad debug info. Use
frame_register instead of frame_register_read, to fill in the new
arguments.
* frame.h (get_frame_register_bytes): New parameters `optimizedp'
and `unavailablep'.
* valops.c: (value_assign): Adjust, and handle
get_frame_register_bytes failing.
* spu-tdep.c: Include exceptions.h.
(spu_software_single_step): Adjust, and handle
get_frame_register_bytes failing.
(spu_get_longjmp_target): Ditto.
* gdbarch.sh (register_to_value): Change to return int. New
parameters `optimizedp' and `unavailablep'.
* gdbarch.h, gdbarch.c: Regenerate.
* i386-tdep.c (i386_register_to_value): Adjust to new
gdbarch_register_to_value interface.
* i387-tdep.c (i387_register_to_value): Ditto.
* i387-tdep.h (i387_register_to_value): Ditto.
* alpha-tdep.c (alpha_register_to_value): Ditto.
* ia64-tdep.c (ia64_register_to_value): Ditto.
* m68k-tdep.c (m68k_register_to_value): Ditto.
* mips-tdep.c (mips_register_to_value): Ditto.
* rs6000-tdep.c (rs6000_register_to_value): Ditto.
to get at the current architecture and at the target specific vector.
Add target specific vector to I387_FISEG_REGNUM and I387_FOP_REGNUM and
remove define of I387_ST0_REGNUM.
* amd64-tdep.c (I387_ST0_REGNUM): Remove define.
(amd64_supply_fxsave, amd64_collect_fxsave): Use get_regcache_arch to
get at the current architecture
(I387_FISEG_REGNUM, I387_FOSEG_REGNUM): Add target specific vector as
parameter.
* i386-tdep.c: Remove various define's and undef's of I387_ST0_REGNUM,
I387_NUM_XMM_REGS and I387_MM0_REGNUM.
(I387_NUM_XMM_REGS, I387_XMM0_REGNUM, I387_MXCSR_REGNUM,
I387_ST0_REGNUM, I387_FCTRL_REGNUM, I387_MM0_REGNUM,
(I387_FSTAT_REGNUM): Add target specific vector as parameter.
(i386_register_name, i386_dbx_reg_to_regnum): Use gdbarch_tdep to get
at the target specific vector.
(i386_get_longjmp_target): Use get_frame_arch to get at the current
architecture. Use gdbarch_tdep to get at the target specific vector.
(i386_fp_regnum_p, i386_fpc_regnum_p): Add gdbarch as parameter and
update caller. Use gdbarch_tdep to get at the target specific vector.
(i386_register_to_value: Use get_frame_arch to get at the current
architecture.
* i386-tdep.h (i386_fp_regnum_p, i386_fpc_regnum_p): Add gdbarch as
parameter.
* i387-tdep.c (I387_FCTRL_REGNUM, I387_FSTAT_REGNUM, I387_FTAG_REGNUM,
I387_FISEG_REGNUM, I387_FIOFF_REGNUM, I387_FOSEG_REGNUM
I387_FOOFF_REGNUM, I387_FOP_REGNUM, I387_ST0_REGNUM, FSAVE_ADDR,
FXSAVE_ADDR, I387_XMM0_REGNUM): Add target specific vector as parameter.
(I387_ST0_REGNUM, I387_NUM_XMM_REGS): Remove various define's and
undef's.
(i387_convert_register_p, i387_register_to_value,
i387_value_to_register): Update call for i386_fp_regnum_p.
* i387-tdep.h: Remove comment.
(I387_ST0_REGNUM, I387_NUM_XMM_REGS, I387_MM0_REGNUM): Add define.
(I387_FCTRL_REGNUM, I387_FSTAT_REGNUM, I387_FTAG_REGNUM,
I387_FISEG_REGNUM, I387_FIOFF_REGNUM, I387_FOSEG_REGNUM,
I387_FOOFF_REGNUM, I387_FOP_REGNUM, I387_XMM0_REGNUM,
I387_MXCSR_REGNUM): Add target specific vector as parameter.
(amd64_init_abi): Use i387_convert_register_p.
* alpha-tdep.c (alpha_convert_register_p): Return zero for
eight byte types.
(alpha_register_to_value, alpha_value_to_register): Do not handle
eight byte types.
* i386-tdep.c (i386_convert_register_p): Use i387_convert_register_p.
* i387-tdep.c (i387_convert_register_p): New.
(i387_register_to_value, i387_value_to_register): Update comments.
* i387-tdep.h (i387_convert_register_p): Declare.
* ia64-tdep.c (ia64_convert_register_p): Return zero for
builtin_type_ia64_ext.
(ia64_gdbarch_init): Do not initialize builtin_type_ia64_ext here.
(_initialize_ia64_tdep): Initialize builtin_type_ia64_ext here.
* m68k-tdep.c (m68k_convert_register_p): Return zero for
builtin_type_m68881_ext.
(m68k_register_to_value, m68k_value_to_register): Update comments.
* gdbint.texinfo (Register and Memory Data, Target Conditionals):
Document that gdbarch_convert_register_p should return zero for no-op
conversions.
writebuf arguments to `gdb_byte *'. Remove now redundant casts.
* i386-tdep.c (i386_return_value): Change type of readbuf and
writebuf arguments to `gdb_byte *'.
(i386_pseudo_register_read, i386_pseudo_register_write): Change
type of last argument to `gdb_byte *'.
(i386_register_to_value, i386_value_to_register): Change type of
last argument to `gdb_byte *'. Simplify function a bit.
* i387-tdep.h (i387_value_to_register, i387_register_to_value):
Change type of last argument to `gdb_byte *'.
* i387-tdep.c: Likewise.
(i387_collect_fxsave): New prototype.
* i387-tdep.c: Update copyright year.
(i387_collect_fxsave): New function containing most of the code
from i387_fill_fxsave.
(i387_fill_fxsave): Call i387_collect_fxsave.
(x86_64_use_struct_convention, x86_64_extract_return_value,
x86_64_store_return_value): Remove.
(amd64_reg_class): New enum.
(amd64_merge_classes, amd64_classify_aggregate, amd64_classify,
amd64_return_value): New functions.
(x86_64_init_abi): Don't set extract_return_value,
store_return_value and use_struct_convention. Set return_value to
amd64_return_value.
* i387-tdep.h (i387_return_value): New prototype.
* i387-tdep.c (i387_return_value): New function.
order. Remove spurious whitespace.
(struct gdbarch_tdep): add st0_regnum and mm0_regnum members.
(i386_sse_regnum_p, i386_mxcsr_regnum_p): Remove prototypes.
* i386-tdep.c (MM0_REGNUM): Remove define.
(i386_mmx_regnum_p): Add gdbarch argument.
(i386_sse_regnum_p, i386_mxcsr_regnum_p): Add gdbarch argument.
Rewrite using new macro definitions for FPU/SSE registers.
(i386_fp_regnum_p, i386_fpc_regnum_p): Rewrite using new macro
definitions from i387-tdep.h.
(i386_register_name): Update.
(i386_stab_reg_to_regnum, i386_dwarf_reg_to_regnum): Update to use
new macro definitions for FPU/SSE registers.
(i386_extract_return_value): Determine whether floating-point
registers are present by examining REGCACHE's architecture.
(i386_store_return_value): Likewise. Use I386_MAX_REGISTER_SIZE
instead of FPU_REG_RAW_SIZE. Use new macro definitions for
FPU/SSE registers.
(i386_register_type): Update.
(i386_mmx_regnum_to_fp_regnum): Rewrite using new macro
definitions for FPU registers. Use REGCACHE's architecture to
determine the appropriate register numbers.
(i386_pseudo_register_read, i386_pseudo_register_write,
i386_register_reggroup_p): Update.
(i386_gdbarch_init): Initialize TDEP->st0_regnum and
TDEP->mm0_regnum.
* i387-tdep.h (I387_FCTRL_REGNUM, I387_FSTAT_REGNUM,
I387_FTAG_REGNUM, I387_FISEG_REGNUM, I387_FIOFF_REGNUM,
I387_FOSEG_REGNUM, I387_FOOFF_REGNUM, I387_FOP_REGNUM,
I387_XMM0_REGNUM, I387_MXCSR_REGNUM): New defines.
(i387_supply_fsave, i387_fill_fsave, i387_supply_fxsave,
i387_fill_fxsave): Change type of fsave/fxsave argument from `char
*' to `void *'.
* i387-tdep.c (i387_print_float_info, fsave_offset, FSAVE_ADDR,
i387_supply_fsave, i387_fill_fsave, fxsave_offset, FXSAVE_ADDR,
i387_supply_fxsave, i387_fill_fxsave): Update to use new macro
definitions for FPU/SSE registers.
(FXSAVE_MXCSR_ADDR): New define.
* x86-64-tdep.c (x86_64_init_abi): Override TDEP->st0_regnum and
TDEP->mm0_regnum.
(I387_FISEG_REGNUM, I387_FOSEG_REGNUM): Remove defines.
(I387_ST0_REGNUM): Define.
Move floating-point code to new function in i387-tdep.c.
* i387-tdep.c (i387_register_to_value, i387_value_to_register):
New functions containing code moved here from i386-tdep.c.
* i387-tdep.h: Add opaque declaration for `struct type'.
(i387_register_to_value, i387_value_to_register): New prototypes.
* x86-64-tdep.c (x86_64_convert_register_p): New function.
(x86_64_init_abi): Set convert_register_p, register_to_value and
value_to_register here.
* i387-tdep.c (print_i387_value, print_i387_ext,
print_i387_status_word, print_i387_control_word): Add `struct
ui_file *' argument and use it for output.
(i387_print_float_info): Renamed from i387_float_info. Add
`struct gdbarch *' and `struct ui_file *' arguments and use the
latter for output.
* i386-tdep.c: Include "i387-tdep.h".
(i386_gdbarch_init): Set print_float_info.
* config/i386/tm-i386.h (i387_float_info): Remove prototype.
(FLOAT_INFO): Remove define.
