* config/obj-coff-seh.c: Rewrite the entire file.

(symtab, symptr, reltab, relcount, relsize): Remove.
	(seh_ctx_root, seh_ctx): Remove.
	(xdata_seg, xdata_subseg, pdata_seg): New.
	(switch_xdata, switch_pdata): New.
	(verify_context, verify_context_and_target, skip_whitespace_and_comma):
	New parsing functions.  Rewrite all parsing functions to use them.
	(obj_coff_seh_32): Fix != arm thinko.
	(obj_coff_seh_handler): For x64, don't accept handler pointer here,
	only flags.
	(obj_coff_seh_handlerdata): New.
	(do_seh_endproc): Split out of ...
	(obj_coff_seh_endproc): ... here.
	(obj_coff_seh_proc): Use it, if needed.
	(seh_x64_make_prologue_element): Use XRESIZEVEC, symbol_temp_new_now.
	(seh_x64_read_reg): Remove mm_regs alternative.  Tidy integer reg
	alternatives.  Don't slurp commas.
	(seh_read_offset): Remove.
	(obj_coff_seh_pushframe): Split out from obj_coff_seh_push.
	(obj_coff_seh_scope): Remove.
	(obj_coff_seh_save): Decide UWOP_SAVE_* vs _FAR immediately.
	(obj_coff_seh_stackalloc): Decide _SMALL vs _LARGE immediately.
	(out_one, out_two, out_four): New.
	(seh_x64_write_prologue_data, seh_x64_size_prologue_data,
	seh_x64_write_function_xdata, write_function_xdata): Rewrite
	from seh_x64_write_xdata, seh_needed_unwind_info, seh_store_elm_data,
	seh_getelm_data_size, seh_getsize_of_unwind_entry,
	seh_make_unwind_entry, seh_getsize_unwind_data, and
	seh_create_unwind_data.
	(seh_arm_write_function_pdata): Rewrite from seh_arm_create_pdata.
	(write_function_pdata): Rewrite from make_function_entry_pdata.
	(seh_write_text_eh_data, make_function_entry_pdata,
	seh_arm_create_pdata, seh_arm_write_pdata, seh_reloc, save_relocs,
	seh_symbol_init, seh_symbol, quick_section, seh_emit_rva,
	seh_emit_long, seh_make_globl, seh_make_section2, seh_make_section,
	seh_make_xlbl_name, make_seh_text_label, seh_fill_pcsyms,
	seh_needed_unwind_info, seh_store_elm_data, seh_getelm_data_size,
	seh_getsize_of_unwind_entry, seh_make_unwind_entry,
	seh_getsize_unwind_data, seh_create_unwind_data,
	seh_make_function_entry_xdata, seh_x64_makescope_elem): Remove.
	* config/obj-coff-seh.h (SEH_CMDS): Remove seh_savemm, seh_scope.
	Add seh_handlerdata.  Adjust function/what arguments for
	seh_savereg, seh_pushframe, seh_stackalloc.
	(struct seh_prologue_element): Adjust members to closer match
	the elements of the UNWIND_CODE structure.
	(struct seh_scope_elem): Remove.
	(struct seh_context): Replace char* members with symbolS or
	expressionS as appropriate.  Sort members by ARM/x64 applicability.
	Remove obsolete stuff wrt direct symbol and reloc manipulation.

gas/ChangeLog

@@ -1,3 +1,55 @@
+2010-08-30  Richard Henderson   <rth@redhat.com>
+
+	* config/obj-coff-seh.c: Rewrite the entire file.
+	(symtab, symptr, reltab, relcount, relsize): Remove.
+	(seh_ctx_root, seh_ctx): Remove.
+	(xdata_seg, xdata_subseg, pdata_seg): New.
+	(switch_xdata, switch_pdata): New.
+	(verify_context, verify_context_and_target, skip_whitespace_and_comma):
+	New parsing functions.  Rewrite all parsing functions to use them.
+	(obj_coff_seh_32): Fix != arm thinko.
+	(obj_coff_seh_handler): For x64, don't accept handler pointer here,
+	only flags.
+	(obj_coff_seh_handlerdata): New.
+	(do_seh_endproc): Split out of ...
+	(obj_coff_seh_endproc): ... here.
+	(obj_coff_seh_proc): Use it, if needed.
+	(seh_x64_make_prologue_element): Use XRESIZEVEC, symbol_temp_new_now.
+	(seh_x64_read_reg): Remove mm_regs alternative.  Tidy integer reg
+	alternatives.  Don't slurp commas.
+	(seh_read_offset): Remove.
+	(obj_coff_seh_pushframe): Split out from obj_coff_seh_push.
+	(obj_coff_seh_scope): Remove.
+	(obj_coff_seh_save): Decide UWOP_SAVE_* vs _FAR immediately.
+	(obj_coff_seh_stackalloc): Decide _SMALL vs _LARGE immediately.
+	(out_one, out_two, out_four): New.
+	(seh_x64_write_prologue_data, seh_x64_size_prologue_data,
+	seh_x64_write_function_xdata, write_function_xdata): Rewrite
+	from seh_x64_write_xdata, seh_needed_unwind_info, seh_store_elm_data,
+	seh_getelm_data_size, seh_getsize_of_unwind_entry,
+	seh_make_unwind_entry, seh_getsize_unwind_data, and
+	seh_create_unwind_data.
+	(seh_arm_write_function_pdata): Rewrite from seh_arm_create_pdata.
+	(write_function_pdata): Rewrite from make_function_entry_pdata.
+	(seh_write_text_eh_data, make_function_entry_pdata,
+	seh_arm_create_pdata, seh_arm_write_pdata, seh_reloc, save_relocs,
+	seh_symbol_init, seh_symbol, quick_section, seh_emit_rva,
+	seh_emit_long, seh_make_globl, seh_make_section2, seh_make_section,
+	seh_make_xlbl_name, make_seh_text_label, seh_fill_pcsyms,
+	seh_needed_unwind_info, seh_store_elm_data, seh_getelm_data_size,
+	seh_getsize_of_unwind_entry, seh_make_unwind_entry,
+	seh_getsize_unwind_data, seh_create_unwind_data,
+	seh_make_function_entry_xdata, seh_x64_makescope_elem): Remove.
+	* config/obj-coff-seh.h (SEH_CMDS): Remove seh_savemm, seh_scope.
+	Add seh_handlerdata.  Adjust function/what arguments for
+	seh_savereg, seh_pushframe, seh_stackalloc.
+	(struct seh_prologue_element): Adjust members to closer match
+	the elements of the UNWIND_CODE structure.
+	(struct seh_scope_elem): Remove.
+	(struct seh_context): Replace char* members with symbolS or
+	expressionS as appropriate.  Sort members by ARM/x64 applicability.
+	Remove obsolete stuff wrt direct symbol and reloc manipulation.
+
 2010-08-25  Alan Modra  <amodra@gmail.com>
 
 	* NEWS: Mention ampersand in macro change.

gas/config/obj-coff-seh.h

@@ -45,7 +45,9 @@
   The pseudos:
   .seh_proc <fct_name>
   .seh_endprologue
-  .seh_handler <handler>[,<handler-data>]]
+  .seh_handler <handler>[,@unwind][,@except]	(x64)
+  .seh_handler <handler>[,<handler_data>]	(others)
+  .seh_handlerdata
   .seh_eh
   .seh_32/.seh_no32
   .seh_endproc
@@ -53,106 +55,76 @@
   .seh_stackalloc
   .seh_pushreg
   .seh_savereg
-  .seh_savemm
   .seh_savexmm
   .seh_pushframe
-  .seh_scope
+*/
-  */
 
 /* architecture specific pdata/xdata handling.  */
 #define SEH_CMDS \
         {"seh_proc", obj_coff_seh_proc, 0}, \
         {"seh_endproc", obj_coff_seh_endproc, 0}, \
-        {"seh_pushreg", obj_coff_seh_push, 0}, \
+        {"seh_pushreg", obj_coff_seh_pushreg, 0}, \
-        {"seh_savereg", obj_coff_seh_save, 0}, \
+        {"seh_savereg", obj_coff_seh_save, 1}, \
-        {"seh_savemm", obj_coff_seh_save, 1}, \
         {"seh_savexmm", obj_coff_seh_save, 2}, \
-        {"seh_pushframe", obj_coff_seh_push, 1}, \
+        {"seh_pushframe", obj_coff_seh_pushframe, 0}, \
         {"seh_endprologue", obj_coff_seh_endprologue, 0}, \
         {"seh_setframe", obj_coff_seh_setframe, 0}, \
-        {"seh_stackalloc", obj_coff_seh_stack_alloc, 0}, \
+        {"seh_stackalloc", obj_coff_seh_stackalloc, 0}, \
-	{"seh_handler", obj_coff_seh_handler, 0}, \
 	{"seh_eh", obj_coff_seh_eh, 0}, \
 	{"seh_32", obj_coff_seh_32, 1}, \
 	{"seh_no32", obj_coff_seh_32, 0}, \
-	{"seh_scope", obj_coff_seh_scope, 0},
+	{"seh_handler", obj_coff_seh_handler, 0}, \
+	{"seh_handlerdata", obj_coff_seh_handlerdata, 0},
 
 /* Type definitions.  */
 
 typedef struct seh_prologue_element
 {
+  int code;
+  int info;
+  offsetT off;
   symbolS *pc_addr;
-  char *pc_symbol;
-  int kind;
-  int reg;
-  bfd_vma offset;
 } seh_prologue_element;
 
-typedef struct seh_scope_elem {
-  char *begin_addr;
-  char *end_addr;
-  char *handler_addr;
-  char *jump_addr;
-} seh_scope_elem;
-
 typedef struct seh_context
 {
   struct seh_context *next;
-  /* Was record alread processed.  */
+
-  int done;
   /* Function name.  */
   char *func_name;
   /* BeginAddress.  */
-  char *start_symbol;
   symbolS *start_addr;
-  bfd_vma start_offset;
   /* EndAddress.  */
-  char *end_symbol;
   symbolS *end_addr;
-  bfd_vma end_offset;
+  /* Unwind data.  */
+  symbolS *xdata_addr;
   /* PrologueEnd.  */
-  char *endprologue_symbol;
   symbolS *endprologue_addr;
-  bfd_vma endprologue_offset;
   /* ExceptionHandler.  */
-  char *handler_name;
+  expressionS handler;
-  /* ExceptionHandlerData.  */
+  /* ExceptionHandlerData. (arm, mips)  */
-  char *handler_data_name;
+  expressionS handler_data;
+
+  /* ARM .seh_eh directive seen.  */
   int handler_written;
+
   /* WinCE specific data.  */
   int use_instruction_32;
+  /* Was record already processed.  */
+  int done;
+
+  /* x64 flags for the xdata header.  */
+  int handler_flags;
+  int subsection;
 
-  /* the bfd to store data within.  */
-  bfd *abfd;
-  /* the current section to generate data within.  */
-  asection *section;
-  /* Relocations for section.  */
-  unsigned int count_reloc;
-  /* Symbols within section.  */
-  unsigned int count_syms;
-  /* Iterator for text lable generation.  */
-  unsigned int tlbl_count;
-  /* Iterator for xdata lable generation.  */
-  unsigned int xlbl_count;
-  /* The name of the first xdata label.  */
-  char *xdata_first;
-  /* FIelds used for x64 generation of chained information.  */
-  char **xdata_names;
-  char **xdata_pcsyms;
-  int *xdata_elm_start;
-  /* Size and offset within current generated xdata section.  */
-  size_t xdata_sz;
-  size_t xdata_offset;
   /* x64 framereg and frame offset information.  */
   int framereg;
-  bfd_vma frameoff;
+  int frameoff;
+
   /* Information about x64 specific unwind data fields.  */
-  size_t elems_count;
+  int elems_count;
-  size_t elems_max;
+  int elems_max;
   seh_prologue_element *elems;
-  size_t scope_max;
-  size_t scope_count;
-  seh_scope_elem *scopes;
 } seh_context;
 
 typedef enum seh_kind {
@@ -163,21 +135,18 @@ typedef enum seh_kind {
 } seh_kind;
 
 /* Forward declarations.  */
-static void obj_coff_seh_stack_alloc (int);
+static void obj_coff_seh_stackalloc (int);
 static void obj_coff_seh_setframe (int);
 static void obj_coff_seh_endprologue (int);
-static void obj_coff_seh_save  (int);
+static void obj_coff_seh_save (int);
-static void obj_coff_seh_push  (int);
+static void obj_coff_seh_pushreg (int);
+static void obj_coff_seh_pushframe (int);
 static void obj_coff_seh_endproc  (int);
 static void obj_coff_seh_eh (int);
 static void obj_coff_seh_32 (int);
 static void obj_coff_seh_proc  (int);
 static void obj_coff_seh_handler (int);
-static void obj_coff_seh_scope (int);
+static void obj_coff_seh_handlerdata (int);
-static int seh_read_offset (const char *, bfd_vma *);
-static int seh_x64_read_reg (const char *, int, int *);
-static void seh_x64_make_prologue_element (int, int, bfd_vma);
-static void make_function_entry_pdata (seh_context *c);
 
 #define UNDSEC (asection *) &bfd_und_section