(i386_frame_chain): Deal with frameless signals.
(i386_sigtramp_saved_sp): New function.
(i386_frame_saved_pc): Deal with frameless signals.
(i386_saved_pc_after_call): Make sure the correct value is
returned just after entry into a sigtramp.
* i386bsd-tdep.c (i386bsd_sc_sp_offset, i386nbsd_sc_sp_offset,
i386fbsd4_sc_sp_offset): New variables.
(i386bsd_init_abi, i386nbsd_init_abi, i386fbsd4_init_abi): Use
these variables to initialize tdep->sc_sp_offset. * i386bsd-nat.c
(_initialize_i386bsd_nat): Add sanity check for sc_sp_offset
similiar to what we already did for sc_pc_offset.
* i386-sol2-tdep.c (i386_sol2_init_abi): Initialize
tdep->sc_sp_offset.
BREAKPOINT, DECR_PC_AFTER_BREAK): Removed.
* i386-tdep.c (i386_skip_prologue): Adjust function signature to
fit into multi-arch framework.
(i386_breakpoint_from_pc): New function.
(i386_gdbarch_init): Adjust for removal of the macros mentioned
above.
* i386-tdep.c (i386_register_offset, i386_register_size): Use
I386_SSE_NUM_REGS instead of MAX_NUM_REGS for the number of
elements in these arrays.
(_initialize_i386_tdep): Use I386_SSE_NUM_REGS instead of
MAX_NUM_REGS.
* i386-tdep.c (i386_register_virtual_type): Return
builtin_type_vec128i for SSE registers.
* gdbtypes.h (builtin_type_vec128i): Declare.
* gdbtypes.c (build_builtin_type_vec128i): New function.
(builtin_type_v2_double, builtin_type_v4_int64): New types.
(builtin_type_vec128i): New type for SSE2 128-bit registers.
(build_gdbtypes): Initialize new builtin vector types.
(_initialize_gdbtypes): Register new vector types with gdbarch.
(struct gdbarch_tdep): Replace os_ident member with abi.
(i386_gdbarch_register_os_abi): New prototype.
* i386-tdep.c (i386_abi_names): New array.
(process_note_abi_tag_sections): Removed.
(process_note_sections): New function.
(i386_elf_abi_from_note, i386_elf_abi): New functions.
(struct i386_abi_handler): New struct.
(i386_abi_handler_list): New variable.
(i386_gdbarch_register_os_abi): New function.
(i386_gdbarch_init): Adapt for the changes given above.
* i386-tdep.c: Include "elf-bfd.h".
(process_note_abi_tag_sections): New function.
(i386_gdbarch_init): Add code to recognize various OS/ABI
combinations.
FCTRL_REGNUM, FPC_REGNUM, FSTAT_REGNUM, FTAG_REGNUM, FCS_REGNUM,
FCOFF_REGNUM, FDS_REGNUM, FDOFF_REGNUM, FOP_REGNUM,
LAST_FPU_CTRL_REGNUM, XMM0_REGNUM, XMM7_REGNUM, MXCSR_REGNUM,
IS_FP_REGNUM, IS_SSE_REGNUM): Removed.
(FP0_REGNUM): Define conditionally depending on HAVE_I387_REGS.
(SIZEOF_FPU_CTRL_REGS): Hardcode value.
* i386-tdep.h (struct gdbarch_tdep): Change such that it contains
a single member `num_xmm_regs'.
(FPC_REGNUM): New macro.
(FIRST_FPU_REGNUM, LAST_FPU_REGNUM, FISRT_XMM_REGNUM,
LAST_XMM_REGNUM, MXCSR_REGNUM, FIRST_FPU_CTRL_REGNUM,
LAST_FPU_CTRL_REGNUM): Removed.
(FCTRL_REGNUM, FSTAT_REGNUM, FTAG_REGNUM, FOP_REGNUM, XMM0_REGNUM,
MXCSR_REGNUM): Define unconditionally. Change macros to match the
comment describing the register layout.
(FISEG_REGNUM, FIOFF_REGNUM, FOSEG_REGNUM, FOOFF_REGNUM): New macros.
(FP_REGNUM_P, FPC_REGNUM_P, SSE_REGNUM_P): New macros.
(IS_FP_REGNUM, IS_FPU_CTRL_REGNUM, IS_SSE_REGNUM): Make obsolete,
unconditionally define in terms of FP_REGNUM_P, FPC_REGNUM_P and
SSE_REGNUM_P).
(FCS_REGNUM, FCOFF_REGNUM, FDS_REGNUM, FDOFF_REGNUM): Make
obsolete, unconditionally define in terms of FISEG_REGNUM,
FIOFF_REGNUM, FOSEG_REGNUM, FOOFF_REGNUM.
* i386-tdep.c (i386_gdbarch_init): Initialize `num_xmm_regs'
member of `struct gdbarch_tdep'.
* x86-64-tdep.c (i386_gdbarch_init): Change initialization of
`struct gdbarch_tdep'.
* i387-nat.c (FCS_REGNUM, FCOFF_REGNUM, FDS_REGNUM, FDOFF_REGNUM):
Replace with FISEG_REGNUM, FIOFF_REGNUM, FOSEG_REGNUM and
FOOFF_REGNUM. Use FPC_REGNUM instead of FIRST_FPU_CTRL_REGNUM.
Use XMM0_REGNUM instead of LAST_FPU_CTRL_REGNUM.
i386_register_byte. Made static.
(i386_register_size): Renamed from i386_register_raw_size. Made
static.
(i386_register_virtual_size): Removed.
(i386_register_byte, i386_register_raw_size,
i386_register_virtual_size): New functions.
(_initialize_i386_tdep): Initialize i386_register_offset instead
of i386_register_byte. Remove code to initialize
i386_register_virtual_size.
* config/i386/tm-i386.h (REGISTER_BYTE): Redefine to use
i386_register_byte function.
(REGISTER_RAW_SIZE): Redefine to use i386_register_raw_size
function.
(REGISTER_VIRTUAL_SIZE): Redefine to use
i386_register_virtual_size function.
(i386_register_byte, i386_register_raw_size,
i386_register_virtual_size): New functions.
(REGISTER_NAME): New define.
(i386_register_name): New prototype.
* i386-tdep.c (i386_register_names): New variable.
(i386_register_name): New function.
* config/i386/tm-i386os9k.h, config/i386/tm-ptx.h,
config/i386/tm-symmetry.h: Undefine REGISTER_NAME instead of
REGISTER_NAMES.
convert_typed_floating to extract floating-point value from
register buffer.
(i386_store_return_value): Use convert_typed_floating to store
floating-point return balue in register buffer
(i386_register_virtual_type): Change type of floating-point
registers to builtin_type_i387_ext.
(i386_register_convert_to_virtual): Use convert_typed_floating to
do the conversion.
(i386_register_convert_to_raw): Likewise.
assertion with a warning if we're asked to convert towards a
non-floating-point type. Zero out the the buffer where the data
is supposed to be stored in that case.
(i386_register_convert_to_virtual): Fix such that it can handle
conversion to any floating-point type. Assert that we are dealing
with a floating-point first.
(i386_register_convert_to_raw): Assert that TYPE is a
floating-point type with length 12.
(i386_register_convertible): New function.
* config/i386/tm-i386.h (REGISTER_VIRTUAL_TYPE): Redefine in terms
of i386_register_virtual_type.
(REGISTER_CONVERTIBLE): Redefine in terms of
i386_register_convertible.
(i386_register_virtual_type, i386_register_convertible): New
prototypes.
* config/i386/tm-i386.h (FRAMELESS_FUNCTION_INVOCATION): Redefine
in terms of i386_frameless_function_invocation. Adjust comment.
(i386_frameless_function_invocation): New prototype.
* config/i386/tm-i386.h (EXTRACT_STRUCT_VALUE_ADDRESS): Redefine
in terms of i386_extract_struct_value_address.
(i386_extract_struct_value_address): New prototype.
return value is TYPE_STRUCT and the number of fields is one, call
ourselves with TYPE set tp the type of the first field.
(i386_store_return_value): Likewise.
This fixes a problem with returning structs consisting of a single
`float' or `double' on *BSD.
functions.
* config/i386/tm-i386.h (PUSH_ARGUMENTS): New macro.
(STORE_STRUCT_RETURN): Redefine in terms of
i386_store_struct_return.
(i386_push_arguments, i386_store_struct_return): New prototypes.
* config/i386/tm-i386v.h (STORE_STRUCT_RETURN): Remove. It's
definition was identical to the definition in "i386/tm-i386.h" so
the new definition should suffice too.
(i386_extract_return_value): Return directly after issuing the
warning and filling *VALBUF with zeroes if we cannot get at the
floating-point registers.
(i386_store_return_value): New function.
* config/i386/tm-i386.h (STORE_RETURN_VALUE): Simply call
i386_store_return_value.
Add prototype for i386_store_return_value.
(FIX_CALL_DUMMY): Redefined to call i386_fix_call_dummy.
(i386_fix_call_dummy): Add prototype.
* i386-tdep.c (i386_fix_call_dummy): New function based on the
code from the old FIX_CALL_DUMMY macro.
arch-utils.{h,c}. The ``set architecutre'' and ``set endian''
commands (part of the move) were implemented to use add_set_enum_cmd()
so that ``set architecture <tab>'' works.
* config/i386/tm-i386aix.h (I386_AIX_TARGET): Remove.
* config/i386/tm-linux.h (LOW_RETURN_REGNUM, HIGH_RETURN_REGNUM):
Remove
* i386-tdep.c (LOW_RETURN_REGNUM, HIGH_RETURN_REGNUM): New defines.
(i386_extract_return_value): Rewritten. Correctly support all
floating-point types and large integer types on targets that use
the standard i386 GDB register layout and return floating-point
values in the FPU.
LINUX_SIGTRAMP_INSN1, LINUX_SIGTRAMP_OFFSET1,
LINUX_SIGTRAMP_INSN2, LINUX_SIGTRAMP_OFFSET2, linux_sigtramp_code,
LINUX_SIGTRAMP_LEN, i386_linux_sigtramp_start,
LINUX_RT_SIGTRAMP_INSN0, LINUX_RT_SIGTRAMP_OFFSET0,
LINUX_RT_SIGTRAMP_INSN1, LINUX_RT_SIGTRAMP_OFFSET1,
linux_rt_sigtramp_code, LINUX_RT_SIGTRAMP_LEN,
i386_linux_rt_sigtramp_start, i386_linux_in_sigtramp,
i386_linux_sigcontext_addr, LINUX_SIGCONTEXT_PC_OFFSET,
i386_linux_sigtramp_saved_pc, LINUX_SIGCONTEXT_SP_OFFSET,
i386_linux_sigtramp_saved_sp): Deleted. These all implement
Linux-specific signal trampoline detection, and should be moved to...
* i386-linux-nat.c: ... here.
* config/i386/tm-linux.h (I386_LINUX_SIGTRAMP): No need to define
this any more, since we're not enabling OS-specific code in a
OS-independent file.
Fix support for Linux/i386 signal trampolines. The old approach
didn't work for Linux 2.2 and beyond, and didn't work with recent
versions of the GNU C library.
* i386-tdep.c (LINUX_RT_SIGTRAMP_INSN0, LINUX_RT_SIGTRAMP_OFFSET0,
LINUX_RT_SIGTRAMP_INSN1, LINUX_RT_SIGTRAMP_OFFSET1): New defines.
(linux_rt_sigtramp_code): New variable.
(LINUX_RT_SIGTRAMP_LEN): New define.
(i386_linux_rt_sigtramp_start): New function. Detect start of
signal trampolines for RT signals.
(i386_linux_sigtramp): Removed.
(i386_linux_in_sigtramp): New function.
(i386_linux_sigcontext_addr): New function. Recognize the names
of the signal tranmpolines used by recent versions of the GNU C
library, and add support for RT signals.
(LINUX_SIGCONTEXT_PC_OFFSET, LINUX_SIGCONTEXT_SP_OFFSET): New
defines. Moved here from config/i386/tm-linux.h.
(i386_linux_sigtramp_saved_pc, i386_linux_sigtramp_saved_sp):
Reimplement in terms of i386_linux_sigcontext_addr.
* config/i386/tm-linux.h (LINUX_SIGCONTEXT_SIZE): Removed.
(LINUX_SIGCONTEXT_PC_OFFSET, LINUX_SIGCONTEXT_SP_OFFSET):
Moved to i386-tdep.c.
(IN_SIGTRAMP): Redefine to call i386_linux_in_sigtramp.
FRAME_CHAIN, FRAMELESS_FUNCTION_INVOCATION, FRAME_SAVED_PC):
Define to make backtracing through the various sigtramp handlers
work.
* i386-tdep.c (i386v4_sigtramp_saved_pc): New routine to fetch
the saved pc from ucontext on the stack for SVR4 signal handling.
({extract,store}_{signed_integer,unsigned_integer,address}):
New routines to replace SWAP_TARGET_AND_HOST.
All over: All uses of SWAP_TARGET_AND_HOST on integers replaced.
symtab.h, tm-i386v4.h, valprint.c, values.c: Lint.
* breakpoint.c, c-exp.y, coffread.c, command.c, environ.c, eval.c,
findvar.c, infcmd.c, infptrace.c, infrun.c, m2-exp.y, parse.c,
putenv.c, solib.c, sparc-xdep.c, symtab.c, tm-i386v.h, tm-sparc.h,
utils.c, valarith.c, valops.c, valprint.c, values.c:
Replace bcopy() use with memcpy(), which is more standard and can
take advantage of gcc's builtin functions for increased performance.
* breakpoint.c, buildsym.c, coffread.c, dbxread.c, i386-tdep.c,
ieee-float.c, infcmd.c, sparc-tdep.c, stack.c, symtab.c, symtab.h,
target.c, values.c:
Replace bzero() use with memset(), which is more standard and can
take advantage of gcc's builtin functions for increased performance.
* i386-tdep.c, main.c, valprint.c:
Replace bcmp() use with memcmp(), which is more standard and can
take advantage of gcc's builtin functions for increased performance.
* All GDB files that #include defs.h: Removed stdio.h.
(defs.h): #include stdio.h.
This has been tested by building GDBs for all targets hosted on Sun4.
None of the build problems were related to stdio.h inclusion. (n.b.
many configurations don't build for other reasons.)
Wed Apr 17 17:09:48 1991 Jim Kingdon (kingdon at cygint.cygnus.com)
* i386-tdep.c (i386_get_frame_setup): Use SWAP_TARGET_AND_HOST
before returning locals or slocals.
* i386-tdep.c (i386_follow_jump): Do not add data16 to pos in
call to codestream_seek; add one to pos if (and only if)
we are dealing with a jump with data16 == 1 (i.e. 0x66, 0xe9).
Mon Apr 15 12:04:32 1991 Jim Kingdon (kingdon at cygint.cygnus.com)
* valops.c (call_function_by_hand): Put dummy1 in target order
before FIX_CALL_DUMMY.
* tm-i386v.h (FIX_CALL_DUMMY): Don't depend on host byte order.
Sun Apr 14 11:55:19 1991 Jim Kingdon (kingdon at cygint.cygnus.com)
* valops.c (push_word): Add SWAP_TARGET_AND_HOST.
* remote.c (remote_open): Send '+' before calling putpkt().
* tm-i386v.h (REGISTER_VIRTUAL_TYPE): Return pointer to void,
not int, for pc, fp, and sp.
* remote.c (remote_open): Call start_remote after putpkt("?");
