* config/i386/i386sol2.mt (TDEPFILES): Add i386-sol2-tdep.o and

i386bsd-tdep.o.  Remove solib.o, solib-svr4.o and solib-legacy.o.
Move these to ...
* config/i386/i386sol2.mh: ... here.
* config/i386/tm-i386sol2.h (STAB_REG_TO_REGNUM): Remove define.
(sigtramp_saved_pc, I386V4_SIGTRAMP_SAVED_PC): Don't #undef.
(SIGCONTEXT_PC_OFFSET): Remove define.
(IN_SIGTRAMP): Remove define.
* i386-sol2-tdep.c: New file.

* config/i386/i386nw.mt (TM_FILE): Change to tm-i386.h.
* config/i386/tm-i386nw.h: Removed.

* config/i386/tm-fbsd.h (STAB_REG_TO_REGNUM,
USE_STRUCT_CONVENTION): Remove defines.
(JB_ELEMENT_SIZE, JB_PC, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
(IN_SIGTRAMP): Remove define.
(i386bsd_in_sigtramp): Remove prototype.
(i386bsd_sigtramp_start, i386bsd_sigtramp_end): Turn into a
function.  Update comment accordingly
(SIGTRAMP_START, SIGTRAMP): Adjust definition accordingly.
(FRAME_SAVED_PC): Remove define.
(i386bsd_frame_saved_pc): Remove prototype.
* config/i386/tm-nbsd.h (JB_ELEMENT_SIZE, JB_PC,
GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
(IN_SIGTRAMP): Remove define.
(i386bsd_in_sigtramp): Remove prototype.
(i386bsd_sigtramp_start, i386bsd_sigtramp_end): Turn into a
function.  Update comment accordingly
(SIGTRAMP_START, SIGTRAMP): Adjust definition accordingly.
(FRAME_SAVED_PC): Remove define.
(i386bsd_frame_saved_pc): Remove prototype.
* config/i386/tm-nbsdaout.h (i386nbsd_aout_use_struct_convention):
Remove prototype.
(USE_STRUCT_CONVENTION): Remove prototype.
* i386bsd-nat.c (i386bsd_sigcontext_pc_offset): Remove
declaration.
(_initialize_i386bsd_nat): Revise logic to determine some
constants at compile time when compiling a native GDB.  Warn if
things don't match up with what we expect.
* i386bsd-tdep.c (i386bsd_sigtramp_start, i386bsd_sigtramp_end):
Remove variables.
(i386bsd_in_sigtramp): Rename tp i386bsd_pc_in_sigtramp.  Rewrite
to use date stored in `struct gdbarch_tdep'.
(i386bsd_sigcontext_offset): Remove varaible.
(i386bsd_sigtramp_saved_pc): Make public.  Rewrite to use data
stored in `struct gdbarch_tdep'.
(i386bsd_frame_saved_pc): Make static.
(i386bsd_sigtramp_start, i386bsd_sigtramp_end): New functions.
(i386bsd_sc_pc_offset, i386nbsd_sc_pc_offset,
i386fbsd_sigtramp_start, i386fbsd_sigtramp_end,
i386fbsd4_sc_pc_offset): New variables.
(i386bsd_init_abi, i386nbsd_init_abi, i386nbsdelf_init_abi,
i386fbsdaout_init_abi, i386fbsd_init_abi, i386fbsd4_init_abi): New
functions.
(i386bsd_aout_osabi_sniffer, _initialize_i386bsd_tdep): New
functions.
* i386fbsd-nat.c (_initialize_i386fbsd_nat): Fix type in comment.
Modify the value of i386fbsd_sigtramp_start and
i386fbsd_sigtramp_end instead of i386bsd_sigtramp_start and
i386fbsd_sigtramp_end.
* i386nbsd-tdep.c: (i386nbsd_aout_use_struct_convention): Remove
function.

* config/i386/tm-linux.h (I386_LINUX_ORIG_EAX_REGNUM): Move
define to i386-linux-tdep.h.
(NUM_REGS, MAX_NUM_REGS, REGISTER_BYTES, REGISTER_NAME,
REGISTER_BYTE, REGISTER_RAW_SIZE, STAB_REG_TO_REGNUM): Remove
defines.
(i386_linux_register_name, i386_linux_register_byte,
i386_linux_register_raw_size): Remove prototypes.
(i386_linux_svr4_fetch_link_map_offsets): Remove prototype.
(SVR4_FETCH_LINK_MAP_OFFSETS): Remove define.
(IN_SIGTRAMP, FRAME_CHAIN, FRAME_SAVED_PC, SAVED_PC_AFTER_CALL,
TARGET_WRITE_PC): Remove defines.
(i386_linux_in_sigtramp, i386_linux_frame_chain,
i386_linux_frame_saved_pc, i386_linux_saved_pc_after_call,
i386_linux_write_pc): Remove prototypes.
(JB_ELEMENT_SIZE, JB_PC, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
* i386-linux-tdep.h: New file.
* i386-linux-nat.c: Include "i386-linux-tdep.h".
* i386-linux-tdep.c: Include "i386-tdep.h" and
"i386-linux-tdep.h".
(i386_linux_register_name, i386_linux_register_byte,
i386_linux_register_raw_size, i386_linux_in_sigtramp,
i386_linux_write_pc, i386_linux_svr4_fetch_link_map_offsets):
Make static.
(i386_linux_init_abi): New function.
(_initialize_i386_linux_tdep): New function.

* config/i386/tm-i386.h (SAVED_PC_AFTER_CALL): Remove define.
(i386_saved_pc_after_call): Remove prototype.
(MAX_NUM_REGS): Increase to deal with Linux's orig_eax "register".
(REGISTER_NAME, STAB_REG_TO_REGNUM, SDB_REG_TO_REGNUM,
DWARF_REG_TO_REGNUM, DWARF2_REG_TO_REGNUM): Remove defines.
(i386_register_name, i386_stab_reg_to_regnum,
i386_dwarf_reg_to_regnum): Remove prototypes.
(SIZEOF_GREGS, SIZEOF_FPU_REGS, SIZEOF_FPU_CTL_REGS,
SIZEOF_SSE_REGS): Remove defines.
(REGISTER_BYTES): Remove define.
(REGISTER_BYTE, REGISTER_RAW_SIZE): Remove defines.
(i386_register_byte, i386_register_raw_size): Remove prototypes.
(FRAME_CHAIN, FRAME_SAVED_PC): Remove defines.
(i386_frame_chain, i386_frame_saved_pc): Remove prototypes.
* config/i386/tm-i386v4.h (FRAME_CHAIN_VALID): Remove define.
(JB_ELEMENT_SIZE, JB_PC, JB_EBX, JB_ESI, JB_EDI, JB_EBP, JB_ESP,
JB_EDX, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
(I386V4_SIGTRAMP_SAVED_PC, IN_SIGTRAMP): Remove defines.
(sigtramp_saved_pc): Remove define.
(i386v4_sigtramp_saved_pc): Remove prototype.
* config/i386/tm-go32.h (FRAME_CHAIN,
FRAMELESS_FUNCTION_INVOCATION, FRAME_SAVED_PC): Remove defines.
(i386go32_frame_saved_pc): Remove prototype.
(JB_ELEMENT_SIZE, JB_PC, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
* i386-tdep.h: Include "osabi.h".
(enum i386_abi): Removed.
(enum struct_return): New enum.
(struct gdbarch_tdep): Remove abi member, add osabi, jb_pc_offset,
struct_return, sigtramp_saved_pc, sigtramp_start, sigtramp_end and
sc_pc_offset members.
(i386_gdbarch_register_os_abi): Remove prototype.
(I386_NUM_GREGS, I386_NUM_FREGS, I386_NUM_XREGS,
I386_SSE_NUM_REGS): New defines.
(I386_SIZEOF_GREGS, I386_SIZEOF_FREGS, I386_SIZEOF_XREGS,
I386_SSE_SIZEOF_REGS): New defines.
(i386_register_name, i386_register_byte, i386_register_raw_size):
New prototypes.
(i386_elf_init_abi, i386_svr4_init_abi): New prototypes.
(i386bsd_sigtramp_saved_pc): New prototype.
* i386-tdep.c: Don't include "elf-bfd.h".
(i386_stab_reg_to_regnum, i386_dwarf_reg_to_regnum,
i386_frame_chain, i386_saved_pc_after_call): Make static.
(i386_frame_saved_pc): Rewrite to call architecture dependent
function to deal with signal handlers.  Make static.
(i386go32_frame_saved_pc): Removed.
[GET_LONGJMP_TARGET] (JB_PC, JB_ELEMENT_SIZE, get_longjmp_target):
Removed.
(i386_get_longjmp_target): New function.
(default_struct_convention, pcc_struct_convention,
reg_struct_convention, valid_conventions, struct_convention): New
variables.
(i386_use_struct_convention): New function.
(i386v4_sigtramp_saved_pc): Renamed to
i386_svr4_sigtramp_saved_pc.  Made static.  Moved.
(i386_pc_in_sigtramp): New function.
(i386_abi_names): Removed.
(ABI_TAG_OS_GNU_LINUX, ABI_TAG_OS_GNU_HURD,
ABI_TAG_OS_GNU_SOLARIS, ABI_TAG_OS_FREEBSD, ABI_TAG_OS_NETBSD):
Removed.
(process_note_sections, i386_elf_abi_from_note, i386_elf_abi,
i386_gdbarch_register_os_abi): Removed.
(struct i386_abi_handler): Removed.
(i386_abi_handler_list): Removed.
(i386_svr4_pc_in_sigtramp, i386_go32_pc_in_sigtramp): New
functions.
(i386_elf_init_abi, i386_svr4_init_abi, i386_go32_init_abi,
i386_nw_init_abi): New functions.
(i386_gdbarch_init): Rewritten to use generic OS ABI framework.
Use set_gdbarch_xxx() calls instead of relying on macros for a
number of calls.
(i386_coff_osabi_sniffer, i386_nlm_osabi_sniffer): New functions.
(_initialize_i386_tdep): Add new 'struct-convcention' command.
Register the various architecture variants defined in this file.

12 files changed, 20 insertions, 386 deletions

diff --git a/gdb/config/i386/i386nw.mt b/gdb/config/i386/i386nw.mt
index 3109c42..9eafe7d 100644
--- a/gdb/config/i386/i386nw.mt
+++ b/gdb/config/i386/i386nw.mt
@@ -1,3 +1,3 @@
 # Target: Intel 386 running NetWare
 TDEPFILES= i386-tdep.o i387-tdep.o
-TM_FILE= tm-i386nw.h
+TM_FILE= tm-i386.h
diff --git a/gdb/config/i386/i386sol2.mh b/gdb/config/i386/i386sol2.mh
index ec93f4a..931cc13 100644
--- a/gdb/config/i386/i386sol2.mh
+++ b/gdb/config/i386/i386sol2.mh
@@ -5,4 +5,5 @@ XM_CLIBS= -lsocket -lnsl
 
 NAT_FILE= nm-i386sol2.h
 NATDEPFILES= core-regset.o fork-child.o i386v4-nat.o corelow.o \
-	procfs.o proc-api.o proc-events.o proc-flags.o proc-why.o gcore.o
+	procfs.o proc-api.o proc-events.o proc-flags.o proc-why.o gcore.o \
+        solib.o solib-svr4.o solib-legacy.o
diff --git a/gdb/config/i386/i386sol2.mt b/gdb/config/i386/i386sol2.mt
index 86d93a3..f8fabd4 100644
--- a/gdb/config/i386/i386sol2.mt
+++ b/gdb/config/i386/i386sol2.mt
@@ -1,3 +1,3 @@
-# Target: Intel 386 running SVR4
-TDEPFILES= i386-tdep.o i387-tdep.o solib.o solib-svr4.o solib-legacy.o
+# Target: Intel 386 running Solaris 2 (SVR4)
+TDEPFILES= i386-tdep.o i387-tdep.o i386-sol2-tdep.o i386bsd-tdep.o
 TM_FILE= tm-i386sol2.h
diff --git a/gdb/config/i386/tm-fbsd.h b/gdb/config/i386/tm-fbsd.h
index 61f5de5..f51859d 100644
--- a/gdb/config/i386/tm-fbsd.h
+++ b/gdb/config/i386/tm-fbsd.h
@@ -24,56 +24,17 @@
 #define HAVE_I387_REGS
 #include "i386/tm-i386.h"
 
-/* FreeBSD/ELF uses stabs-in-ELF with the DWARF register numbering
-   scheme by default, so we must redefine STAB_REG_TO_REGNUM.  This
-   messes up the floating-point registers for a.out, but there is not
-   much we can do about that.  */
-
-#undef STAB_REG_TO_REGNUM
-#define STAB_REG_TO_REGNUM(reg) i386_dwarf_reg_to_regnum ((reg))
-
-/* FreeBSD uses the old gcc convention for struct returns.  */
-
-#define USE_STRUCT_CONVENTION(gcc_p, type) \
-  generic_use_struct_convention (1, type)
-
-
-/* Support for longjmp.  */
-
-/* Details about jmp_buf.  It's supposed to be an array of integers.  */
-
-#define JB_ELEMENT_SIZE 4	/* Size of elements in jmp_buf.  */
-#define JB_PC		0	/* Array index of saved PC.  */
-
-/* Figure out where the longjmp will land.  Store the address that
-   longjmp will jump to in *ADDR, and return non-zero if successful.  */
-
-#define GET_LONGJMP_TARGET(addr) get_longjmp_target (addr)
-extern int get_longjmp_target (CORE_ADDR *addr);
-
-
-/* Support for signal handlers.  */
-
-#define IN_SIGTRAMP(pc, name) i386bsd_in_sigtramp (pc, name)
-extern int i386bsd_in_sigtramp (CORE_ADDR pc, char *name);
-
 /* These defines allow the recognition of sigtramps as a function name
    <sigtramp>.
 
-   FIXME: kettenis/2001-07-13: These should be added to the target
-   vector and turned into functions when we go "multi-arch".  */
-
-#define SIGTRAMP_START(pc) i386bsd_sigtramp_start
-#define SIGTRAMP_END(pc) i386bsd_sigtramp_end
-extern CORE_ADDR i386bsd_sigtramp_start;
-extern CORE_ADDR i386bsd_sigtramp_end;
-
-/* Override FRAME_SAVED_PC to enable the recognition of signal handlers.  */
+   FIXME: kettenis/2002-05-12: Of course these defines will have to go
+   if we go truly "multi-arch", but I don't know yet how to get rid of
+   them.  */
 
-#undef FRAME_SAVED_PC
-#define FRAME_SAVED_PC(frame) i386bsd_frame_saved_pc (frame)
-extern CORE_ADDR i386bsd_frame_saved_pc (struct frame_info *frame);
-
+#define SIGTRAMP_START(pc) i386bsd_sigtramp_start (pc)
+#define SIGTRAMP_END(pc) i386bsd_sigtramp_end (pc)
+extern CORE_ADDR i386bsd_sigtramp_start (CORE_ADDR pc);
+extern CORE_ADDR i386bsd_sigtramp_end (CORE_ADDR pc);
 
 /* Shared library support.  */
 
diff --git a/gdb/config/i386/tm-go32.h b/gdb/config/i386/tm-go32.h
index b660827..79370e7 100644
--- a/gdb/config/i386/tm-go32.h
+++ b/gdb/config/i386/tm-go32.h
@@ -26,43 +26,4 @@
 
 #include "i386/tm-i386.h"
 
-/* FRAME_CHAIN takes a frame's nominal address and produces the frame's
-   chain-pointer.
-   In the case of the i386, the frame's nominal address
-   is the address of a 4-byte word containing the calling frame's address.
-   DJGPP doesn't have any special frames for signal handlers, they are
-   just normal C functions. */
-#undef  FRAME_CHAIN
-#define FRAME_CHAIN(thisframe) \
-  (!inside_entry_file ((thisframe)->pc) ? \
-   read_memory_integer ((thisframe)->frame, 4) :\
-   0)
-
-/* A macro that tells us whether the function invocation represented
-   by FI does not have a frame on the stack associated with it.  If it
-   does not, FRAMELESS is set to 1, else 0.  */
-#undef  FRAMELESS_FUNCTION_INVOCATION
-#define FRAMELESS_FUNCTION_INVOCATION(FI) \
-     (frameless_look_for_prologue(FI))
-
-extern CORE_ADDR i386go32_frame_saved_pc (struct frame_info *frame);
-#undef  FRAME_SAVED_PC
-#define FRAME_SAVED_PC(FRAME) (i386go32_frame_saved_pc ((FRAME)))
-
-/* Support for longjmp.  */
-
-/* Details about jmp_buf.  It's supposed to be an array of integers.  */
-
-#define JB_ELEMENT_SIZE 4	/* Size of elements in jmp_buf.  */
-#define JB_PC		8	/* Array index of saved PC inside jmp_buf.  */
-
-/* Figure out where the longjmp will land.  Slurp the args out of the
-   stack.  We expect the first arg to be a pointer to the jmp_buf
-   structure from which we extract the pc (JB_PC) that we will land
-   at.  The pc is copied into ADDR.  This routine returns true on
-   success.  */
-
-#define GET_LONGJMP_TARGET(addr) get_longjmp_target (addr)
-extern int get_longjmp_target (CORE_ADDR *addr);
-
 #endif /* TM_GO32_H */
diff --git a/gdb/config/i386/tm-i386.h b/gdb/config/i386/tm-i386.h
index f9326fe..8fae610 100644
--- a/gdb/config/i386/tm-i386.h
+++ b/gdb/config/i386/tm-i386.h
@@ -63,11 +63,6 @@ struct type;
 
 extern int i386_skip_prologue (int);
 
-/* Immediately after a function call, return the saved pc.  */
-
-#define SAVED_PC_AFTER_CALL(frame) i386_saved_pc_after_call (frame)
-extern CORE_ADDR i386_saved_pc_after_call (struct frame_info *frame);
-
 /* Stack grows downward.  */
 
 #define INNER_THAN(lhs,rhs) ((lhs) < (rhs))
@@ -118,7 +113,7 @@ extern CORE_ADDR i386_saved_pc_after_call (struct frame_info *frame);
 #endif
 
 /* Largest number of registers we could have in any configuration.  */
-#define MAX_NUM_REGS (16 + 16 + 9)
+#define MAX_NUM_REGS (16 + 16 + 9 + 1)
 
 /* Register numbers of various important registers.
    Note that some of these values are "real" register numbers,
@@ -139,60 +134,8 @@ extern CORE_ADDR i386_saved_pc_after_call (struct frame_info *frame);
 #else
 #define FP0_REGNUM 0
 #endif
-
-/* Return the name of register REG.  */
-
-#define REGISTER_NAME(reg) i386_register_name ((reg))
-extern char *i386_register_name (int reg);
-
-/* Use the "default" register numbering scheme for stabs and COFF.  */
-
-#define STAB_REG_TO_REGNUM(reg) i386_stab_reg_to_regnum ((reg))
-#define SDB_REG_TO_REGNUM(reg) i386_stab_reg_to_regnum ((reg))
-extern int i386_stab_reg_to_regnum (int reg);
-
-/* Use the DWARF register numbering scheme for DWARF and DWARF 2.  */
-
-#define DWARF_REG_TO_REGNUM(reg) i386_dwarf_reg_to_regnum ((reg))
-#define DWARF2_REG_TO_REGNUM(reg) i386_dwarf_reg_to_regnum ((reg))
-extern int i386_dwarf_reg_to_regnum (int reg);
-
-/* We don't define ECOFF_REG_TO_REGNUM, since ECOFF doesn't seem to be
-   in use on any of the supported i386 targets.  */
 
 
-/* Sizes of individual register sets.  These cover the entire register
-   file, so summing up the sizes of those portions actually present
-   yields REGISTER_BYTES.  */
-#define SIZEOF_GREGS (NUM_GREGS * 4)
-#define SIZEOF_FPU_REGS (8 * 10)
-#define SIZEOF_FPU_CTRL_REGS (8 * 4)
-#define SIZEOF_SSE_REGS (8 * 16 + 4)
-
-
-/* Total amount of space needed to store our copies of the machine's register
-   state, the array `registers'. */
-#ifdef HAVE_SSE_REGS
-#define REGISTER_BYTES \
-  (SIZEOF_GREGS + SIZEOF_FPU_REGS + SIZEOF_FPU_CTRL_REGS + SIZEOF_SSE_REGS)
-#else
-#ifdef HAVE_I387_REGS
-#define REGISTER_BYTES (SIZEOF_GREGS + SIZEOF_FPU_REGS + SIZEOF_FPU_CTRL_REGS)
-#else
-#define REGISTER_BYTES (SIZEOF_GREGS)
-#endif
-#endif
-
-/* Return the offset into the register array of the start of register
-   number REG.  */
-#define REGISTER_BYTE(reg) i386_register_byte ((reg))
-extern int i386_register_byte (int reg);
-
-/* Return the number of bytes of storage in GDB's register array
-   occupied by register REG.  */
-#define REGISTER_RAW_SIZE(reg) i386_register_raw_size ((reg))
-extern int i386_register_raw_size (int reg);
-
 /* Largest value REGISTER_RAW_SIZE can have.  */
 #define MAX_REGISTER_RAW_SIZE 16
 
@@ -275,18 +218,6 @@ extern void i386_store_return_value (struct type *type, char *valbuf);
   i386_extract_struct_value_address ((regbuf))
 extern CORE_ADDR i386_extract_struct_value_address (char *regbuf);
 
-/* The following redefines make backtracing through sigtramp work.
-   They manufacture a fake sigtramp frame and obtain the saved pc in sigtramp
-   from the sigcontext structure which is pushed by the kernel on the
-   user stack, along with a pointer to it.  */
-
-/* Return the chain-pointer for FRAME.  In the case of the i386, the
-   frame's nominal address is the address of a 4-byte word containing
-   the calling frame's address.  */
-
-#define FRAME_CHAIN(frame) i386_frame_chain ((frame))
-extern CORE_ADDR i386_frame_chain (struct frame_info *frame);
-
 /* Determine whether the function invocation represented by FRAME does
    not have a from on the stack associated with it.  If it does not,
    return non-zero, otherwise return zero.  */
@@ -295,11 +226,6 @@ extern CORE_ADDR i386_frame_chain (struct frame_info *frame);
   i386_frameless_function_invocation (frame)
 extern int i386_frameless_function_invocation (struct frame_info *frame);
 
-/* Return the saved program counter for FRAME.  */
-
-#define FRAME_SAVED_PC(frame) i386_frame_saved_pc (frame)
-extern CORE_ADDR i386_frame_saved_pc (struct frame_info *frame);
-
 #define FRAME_ARGS_ADDRESS(fi) ((fi)->frame)
 
 #define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
diff --git a/gdb/config/i386/tm-i386nw.h b/gdb/config/i386/tm-i386nw.h
deleted file mode 100644
index 9ede2c0..0000000
--- a/gdb/config/i386/tm-i386nw.h
+++ /dev/null
@@ -1,49 +0,0 @@
-/* Macro definitions for i386 running NetWare.
-   Copyright 1993, 1994, 1995, 1998, 1999, 2000
-   Free Software Foundation, Inc.
-
-   This file is part of GDB.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
-
-#ifndef TM_I386NW_H
-#define TM_I386NW_H 1
-
-#include "i386/tm-i386.h"
-
-/* Stop backtracing when we wander into main.  */
-
-#define FRAME_CHAIN_VALID(fp,fi) func_frame_chain_valid (fp, fi)
-
-
-/* Offsets (in target ints) into jmp_buf.  Not defined in any system header
-   file, so we have to step through setjmp/longjmp with a debugger and figure
-   them out.  */
-
-#define JB_ELEMENT_SIZE 4	/* jmp_buf[] is array of ints */
-
-#define JB_PC	6		/* Setjmp()'s return PC saved here */
-
-/* Figure out where the longjmp will land.  Slurp the args out of the stack.
-   We expect the first arg to be a pointer to the jmp_buf structure from which
-   we extract the pc (JB_PC) that we will land at.  The pc is copied into ADDR.
-   This routine returns true on success */
-
-extern int get_longjmp_target (CORE_ADDR *);
-
-#define GET_LONGJMP_TARGET(ADDR) get_longjmp_target(ADDR)
-
-#endif /* ifndef TM_I386NW_H */
diff --git a/gdb/config/i386/tm-i386sol2.h b/gdb/config/i386/tm-i386sol2.h
index c90e0d4..7473f3b 100644
--- a/gdb/config/i386/tm-i386sol2.h
+++ b/gdb/config/i386/tm-i386sol2.h
@@ -24,11 +24,6 @@
 #define HAVE_I387_REGS
 #include "i386/tm-i386v4.h"
 
-/* We use stabs-in-ELF with the DWARF register numbering scheme.  */
-
-#undef STAB_REG_TO_REGNUM
-#define STAB_REG_TO_REGNUM(reg) i386_dwarf_reg_to_regnum ((reg))
-
 /* If the current gcc for for this target does not produce correct
    debugging information for float parameters, both prototyped and
    unprototyped, then define this macro.  This forces gdb to always
@@ -37,15 +32,6 @@
 
 #define COERCE_FLOAT_TO_DOUBLE(formal, actual) (1)
 
-/* Signal handler frames under Solaris 2 are recognized by a return address
-   of 0xFFFFFFFF, the third parameter on the signal handler stack is
-   a pointer to an ucontext.  */
-#undef sigtramp_saved_pc
-#undef I386V4_SIGTRAMP_SAVED_PC
-#define SIGCONTEXT_PC_OFFSET (36 + 14 * 4)
-#undef IN_SIGTRAMP
-#define IN_SIGTRAMP(pc, name) (pc == 0xFFFFFFFF)
-
 /* The SunPRO compiler puts out 0 instead of the address in N_SO symbols,
    and for SunPRO 3.0, N_FUN symbols too.  */
 #define SOFUN_ADDRESS_MAYBE_MISSING
diff --git a/gdb/config/i386/tm-i386v4.h b/gdb/config/i386/tm-i386v4.h
index 010edb4..7ebd27d 100644
--- a/gdb/config/i386/tm-i386v4.h
+++ b/gdb/config/i386/tm-i386v4.h
@@ -31,49 +31,4 @@
 
 #include "config/tm-sysv4.h"
 
-/* Use the alternate method of determining valid frame chains. */
-
-#define FRAME_CHAIN_VALID(fp,fi) func_frame_chain_valid (fp, fi)
-
-/* Offsets (in target ints) into jmp_buf.  Not defined in any system header
-   file, so we have to step through setjmp/longjmp with a debugger and figure
-   them out.  Note that <setjmp> defines _JBLEN as 10, which is the default
-   if no specific machine is selected, even though we only use 6 slots. */
-
-#define JB_ELEMENT_SIZE sizeof(int)	/* jmp_buf[_JBLEN] is array of ints */
-
-#define JB_EBX	0
-#define JB_ESI	1
-#define JB_EDI	2
-#define JB_EBP	3
-#define JB_ESP	4
-#define JB_EDX	5
-
-#define JB_PC	JB_EDX		/* Setjmp()'s return PC saved in EDX */
-
-/* Figure out where the longjmp will land.  Slurp the args out of the stack.
-   We expect the first arg to be a pointer to the jmp_buf structure from which
-   we extract the pc (JB_PC) that we will land at.  The pc is copied into ADDR.
-   This routine returns true on success */
-
-extern int get_longjmp_target (CORE_ADDR *);
-
-#define GET_LONGJMP_TARGET(ADDR) get_longjmp_target(ADDR)
-
-/* The following redefines make backtracing through sigtramp work.
-   They manufacture a fake sigtramp frame and obtain the saved pc in sigtramp
-   from the ucontext structure which is pushed by the kernel on the
-   user stack. Unfortunately there are three variants of sigtramp handlers.  */
-
-#define I386V4_SIGTRAMP_SAVED_PC
-#define IN_SIGTRAMP(pc, name) ((name)					\
-			       && (STREQ ("_sigreturn", name)		\
-				   || STREQ ("_sigacthandler", name)	\
-				   || STREQ ("sigvechandler", name)))
-
-/* Saved Pc.  Get it from ucontext if within sigtramp.  */
-
-#define sigtramp_saved_pc i386v4_sigtramp_saved_pc
-extern CORE_ADDR i386v4_sigtramp_saved_pc (struct frame_info *);
-
 #endif /* ifndef TM_I386V4_H */
diff --git a/gdb/config/i386/tm-linux.h b/gdb/config/i386/tm-linux.h
index 9c11c89..7bfdf03 100644
--- a/gdb/config/i386/tm-linux.h
+++ b/gdb/config/i386/tm-linux.h
@@ -33,72 +33,9 @@
 #include "i386/tm-i386.h"
 #include "config/tm-linux.h"
 
-/* Register number for the "orig_eax" pseudo-register.  If this
-   pseudo-register contains a value >= 0 it is interpreted as the
-   system call number that the kernel is supposed to restart.  */
-#define I386_LINUX_ORIG_EAX_REGNUM (NUM_GREGS + NUM_FREGS + NUM_SSE_REGS)
-
-/* Adjust a few macros to deal with this extra register.  */
-
-#undef NUM_REGS
-#define NUM_REGS (NUM_GREGS + NUM_FREGS + NUM_SSE_REGS + 1)
-
-#undef MAX_NUM_REGS
-#define MAX_NUM_REGS (16 + 16 + 9 + 1)
-
-#undef REGISTER_BYTES
-#define REGISTER_BYTES \
-  (SIZEOF_GREGS + SIZEOF_FPU_REGS + SIZEOF_FPU_CTRL_REGS + SIZEOF_SSE_REGS + 4)
-
-#undef REGISTER_NAME
-#define REGISTER_NAME(reg) i386_linux_register_name ((reg))
-extern char *i386_linux_register_name (int reg);
-
-#undef REGISTER_BYTE
-#define REGISTER_BYTE(reg) i386_linux_register_byte ((reg))
-extern int i386_linux_register_byte (int reg);
-
-#undef REGISTER_RAW_SIZE
-#define REGISTER_RAW_SIZE(reg) i386_linux_register_raw_size ((reg))
-extern int i386_linux_register_raw_size (int reg);
-
-/* GNU/Linux ELF uses stabs-in-ELF with the DWARF register numbering
-   scheme by default, so we must redefine STAB_REG_TO_REGNUM.  This
-   messes up the floating-point registers for a.out, but there is not
-   much we can do about that.  */
-#undef STAB_REG_TO_REGNUM
-#define STAB_REG_TO_REGNUM(reg) i386_dwarf_reg_to_regnum ((reg))
-
-/* Use target_specific function to define link map offsets.  */
-extern struct link_map_offsets *i386_linux_svr4_fetch_link_map_offsets (void);
-#define SVR4_FETCH_LINK_MAP_OFFSETS() i386_linux_svr4_fetch_link_map_offsets ()
-
 /* The following works around a problem with /usr/include/sys/procfs.h  */
 #define sys_quotactl 1
 
-/* When the i386 Linux kernel calls a signal handler, the return
-   address points to a bit of code on the stack.  These definitions
-   are used to identify this bit of code as a signal trampoline in
-   order to support backtracing through calls to signal handlers.  */
-
-#define IN_SIGTRAMP(pc, name) i386_linux_in_sigtramp (pc, name)
-extern int i386_linux_in_sigtramp (CORE_ADDR, char *);
-
-#undef FRAME_CHAIN
-#define FRAME_CHAIN(frame) i386_linux_frame_chain (frame)
-extern CORE_ADDR i386_linux_frame_chain (struct frame_info *frame);
-
-#undef FRAME_SAVED_PC
-#define FRAME_SAVED_PC(frame) i386_linux_frame_saved_pc (frame)
-extern CORE_ADDR i386_linux_frame_saved_pc (struct frame_info *frame);
-
-#undef SAVED_PC_AFTER_CALL
-#define SAVED_PC_AFTER_CALL(frame) i386_linux_saved_pc_after_call (frame)
-extern CORE_ADDR i386_linux_saved_pc_after_call (struct frame_info *);
-
-#define TARGET_WRITE_PC(pc, ptid) i386_linux_write_pc (pc, ptid)
-extern void i386_linux_write_pc (CORE_ADDR pc, ptid_t ptid);
-
 /* When we call a function in a shared library, and the PLT sends us
    into the dynamic linker to find the function's real address, we
    need to skip over the dynamic linker call.  This function decides
@@ -110,22 +47,5 @@ extern CORE_ADDR i386_linux_skip_solib_resolver (CORE_ADDR pc);
 /* N_FUN symbols in shared libaries have 0 for their values and need
    to be relocated. */
 #define SOFUN_ADDRESS_MAYBE_MISSING
-
-
-/* Support for longjmp.  */
-
-/* Details about jmp_buf.  It's supposed to be an array of integers.  */
-
-#define JB_ELEMENT_SIZE 4	/* Size of elements in jmp_buf.  */
-#define JB_PC		5	/* Array index of saved PC.  */
-
-/* Figure out where the longjmp will land.  Slurp the args out of the
-   stack.  We expect the first arg to be a pointer to the jmp_buf
-   structure from which we extract the pc (JB_PC) that we will land
-   at.  The pc is copied into ADDR.  This routine returns true on
-   success.  */
-
-#define GET_LONGJMP_TARGET(addr) get_longjmp_target (addr)
-extern int get_longjmp_target (CORE_ADDR *addr);
 
 #endif /* #ifndef TM_LINUX_H */
diff --git a/gdb/config/i386/tm-nbsd.h b/gdb/config/i386/tm-nbsd.h
index b4fb754..55ef6fa 100644
--- a/gdb/config/i386/tm-nbsd.h
+++ b/gdb/config/i386/tm-nbsd.h
@@ -26,39 +26,16 @@
 
 #include "i386/tm-i386.h"
 
-#define JB_ELEMENT_SIZE sizeof(int)	/* jmp_buf[_JBLEN] is array of ints */
-#define JB_PC	0		/* Setjmp()'s return PC saved here */
-
-/* Figure out where the longjmp will land.  Slurp the args out of the stack.
-   We expect the first arg to be a pointer to the jmp_buf structure from which
-   we extract the pc (JB_PC) that we will land at.  The pc is copied into ADDR.
-   This routine returns true on success */
-
-extern int get_longjmp_target (CORE_ADDR *);
-
-#define GET_LONGJMP_TARGET(ADDR) get_longjmp_target(ADDR)
-
-
-/* Support for signal handlers.  */
-
-#define IN_SIGTRAMP(pc, name) i386bsd_in_sigtramp (pc, name)
-extern int i386bsd_in_sigtramp (CORE_ADDR pc, char *name);
-
 /* These defines allow the recognition of sigtramps as a function name
    <sigtramp>.
 
-   FIXME: kettenis/2001-07-13: These should be added to the target
-   vector and turned into functions when we go "multi-arch".  */
-
-#define SIGTRAMP_START(pc) i386bsd_sigtramp_start
-#define SIGTRAMP_END(pc) i386bsd_sigtramp_end
-extern CORE_ADDR i386bsd_sigtramp_start;
-extern CORE_ADDR i386bsd_sigtramp_end;
-
-/* Override FRAME_SAVED_PC to enable the recognition of signal handlers.  */
+   FIXME: kettenis/2002-05-12: Of course these defines will have to go
+   if we go truly "multi-arch", but I don't know yet how to get rid of
+   them.  */
 
-#undef FRAME_SAVED_PC
-#define FRAME_SAVED_PC(frame) i386bsd_frame_saved_pc (frame)
-extern CORE_ADDR i386bsd_frame_saved_pc (struct frame_info *frame);
+#define SIGTRAMP_START(pc) i386bsd_sigtramp_start (pc)
+#define SIGTRAMP_END(pc) i386bsd_sigtramp_end (pc)
+extern CORE_ADDR i386bsd_sigtramp_start (CORE_ADDR pc);
+extern CORE_ADDR i386bsd_sigtramp_end (CORE_ADDR pc);
 
 #endif /* TM_NBSD_H */
diff --git a/gdb/config/i386/tm-nbsdaout.h b/gdb/config/i386/tm-nbsdaout.h
index 95fe2e7..8dde114 100644
--- a/gdb/config/i386/tm-nbsdaout.h
+++ b/gdb/config/i386/tm-nbsdaout.h
@@ -27,8 +27,4 @@
 #define IN_SOLIB_CALL_TRAMPOLINE(pc, name) \
   (name && !strcmp(name, "_DYNAMIC"))
 
-extern use_struct_convention_fn i386nbsd_aout_use_struct_convention;
-#define USE_STRUCT_CONVENTION(gcc_p, type) \
-        i386nbsd_aout_use_struct_convention(gcc_p, type)
-
 #endif /* TM_NBSDAOUT_H */