* 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.

1 files changed, 60 insertions, 7 deletions

diff --git a/gdb/i386-linux-tdep.c b/gdb/i386-linux-tdep.c
index 9592dec..12a2ab9 100644
--- a/gdb/i386-linux-tdep.c
+++ b/gdb/i386-linux-tdep.c
@@ -33,9 +33,12 @@
 
 #include "solib-svr4.h"		/* For struct link_map_offsets.  */
 
+#include "i386-tdep.h"
+#include "i386-linux-tdep.h"
+
 /* Return the name of register REG.  */
 
-char *
+static char *
 i386_linux_register_name (int reg)
 {
   /* Deal with the extra "orig_eax" pseudo register.  */
@@ -45,7 +48,7 @@ i386_linux_register_name (int reg)
   return i386_register_name (reg);
 }
 
-int
+static int
 i386_linux_register_byte (int reg)
 {
   /* Deal with the extra "orig_eax" pseudo register.  */
@@ -56,7 +59,7 @@ i386_linux_register_byte (int reg)
   return i386_register_byte (reg);
 }
 
-int
+static int
 i386_linux_register_raw_size (int reg)
 {
   /* Deal with the extra "orig_eax" pseudo register.  */
@@ -224,8 +227,8 @@ i386_linux_rt_sigtramp_start (CORE_ADDR pc)
 
 /* Return whether PC is in a GNU/Linux sigtramp routine.  */
 
-int
-i386_linux_in_sigtramp (CORE_ADDR pc, char *name)
+static int
+i386_linux_pc_in_sigtramp (CORE_ADDR pc, char *name)
 {
   if (name)
     return STREQ ("__restore", name) || STREQ ("__restore_rt", name);
@@ -379,7 +382,7 @@ i386_linux_saved_pc_after_call (struct frame_info *frame)
 
 /* Set the program counter for process PTID to PC.  */
 
-void
+static void
 i386_linux_write_pc (CORE_ADDR pc, ptid_t ptid)
 {
   write_register_pid (PC_REGNUM, pc, ptid);
@@ -496,7 +499,7 @@ i386_linux_skip_solib_resolver (CORE_ADDR pc)
    from a GDB that was not built on an GNU/Linux x86 host (for cross
    debugging).  */
 
-struct link_map_offsets *
+static struct link_map_offsets *
 i386_linux_svr4_fetch_link_map_offsets (void)
 {
   static struct link_map_offsets lmo;
@@ -528,3 +531,53 @@ i386_linux_svr4_fetch_link_map_offsets (void)
 
   return lmp;
 }
+
+
+static void
+i386_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
+{
+  struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+
+  /* GNU/Linux uses ELF.  */
+  i386_elf_init_abi (info, gdbarch);
+
+  /* We support the SSE registers on GNU/Linux.  */
+  tdep->num_xmm_regs = I386_NUM_XREGS - 1;
+  /* set_gdbarch_num_regs (gdbarch, I386_SSE_NUM_REGS); */
+
+  /* Since we have the extra "orig_eax" register on GNU/Linux, we have
+     to adjust a few things.  */
+
+  set_gdbarch_write_pc (gdbarch, i386_linux_write_pc);
+  set_gdbarch_num_regs (gdbarch, I386_SSE_NUM_REGS + 1);
+  set_gdbarch_register_name (gdbarch, i386_linux_register_name);
+  set_gdbarch_register_bytes (gdbarch, I386_SSE_SIZEOF_REGS + 4);
+  set_gdbarch_register_byte (gdbarch, i386_linux_register_byte);
+  set_gdbarch_register_raw_size (gdbarch, i386_linux_register_raw_size);
+
+  tdep->jb_pc_offset = 20;	/* From <bits/setjmp.h>.  */
+
+  /* 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.  */
+
+  set_gdbarch_pc_in_sigtramp (gdbarch, i386_linux_pc_in_sigtramp);
+  set_gdbarch_frame_chain (gdbarch, i386_linux_frame_chain);
+  set_gdbarch_frame_saved_pc (gdbarch, i386_linux_frame_saved_pc);
+  set_gdbarch_saved_pc_after_call (gdbarch, i386_linux_saved_pc_after_call);
+  tdep->sigtramp_saved_pc = i386_linux_sigtramp_saved_pc;
+
+  set_solib_svr4_fetch_link_map_offsets (gdbarch,
+				       i386_linux_svr4_fetch_link_map_offsets);
+}
+
+/* Provide a prototype to silence -Wmissing-prototypes.  */
+extern void _initialize_i386_linux_tdep (void);
+
+void
+_initialize_i386_linux_tdep (void)
+{
+  gdbarch_register_osabi (bfd_arch_i386, GDB_OSABI_LINUX,
+			  i386_linux_init_abi);
+}