* i387-tdep.c (i387_supply_xsave): If we have an xsave buffer, and
the register state is clear, supply explicit zero, instead of
marking the register unavailable.
* 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.
type of first argument to `const gdb_byte *'.
(i387_print_float_info, i387_register_to_value)
(i387_value_to_register, i387_supply_fsave, i387_collect_fsave)
(i387_supply_fxsave, i387_collect_fxsave): Use gdb_byte for byte
buffers.
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 (i387_supply_register): When called with NULL as a
buffer, mark the register as not provided (to mirror the behavior
of supply_register).
(i387_supply_fxsave): Ditto.
(i387_supply_fsave): Ditto (inherits the behavior from
i387_supply_register).
Sergio Durigan Junior