Drop reference to dwarf.ret_addr_column.

include/dwarf.h

@@ -313,7 +313,6 @@ typedef struct dwarf_cursor
     unw_word_t cfa;     /* canonical frame address; aka frame-/stack-pointer */
     unw_word_t ip;              /* instruction pointer */
     unw_word_t args_size;       /* size of arguments */
-    unw_word_t ret_addr_column; /* column for return-address */
     unw_word_t eh_args[UNW_TDEP_NUM_EH_REGS];
     unsigned int eh_valid_mask;
 

src/aarch64/init.h

@@ -115,7 +115,6 @@ common_init (struct cursor *c, unsigned use_prev_instr)
   c->sigcontext_pc = 0;
 
   c->dwarf.args_size = 0;
-  c->dwarf.ret_addr_column = 0;
   c->dwarf.stash_frames = 0;
   c->dwarf.use_prev_instr = use_prev_instr;
   c->dwarf.pi_valid = 0;

src/arm/init.h

@@ -66,7 +66,6 @@ common_init (struct cursor *c, unsigned use_prev_instr)
   /* FIXME: Initialisation for other registers.  */
 
   c->dwarf.args_size = 0;
-  c->dwarf.ret_addr_column = 0;
   c->dwarf.stash_frames = 0;
   c->dwarf.use_prev_instr = use_prev_instr;
   c->dwarf.pi_valid = 0;

src/dwarf/Gparser.c

@@ -943,11 +943,7 @@ dwarf_step (struct dwarf_cursor *c)
   dwarf_state_record_t sr;
   if ((ret = find_reg_state (c, &sr)) < 0)
     return ret;
-  if ((ret = apply_reg_state (c, &sr.rs_current)) < 0)
+  return apply_reg_state (c, &sr.rs_current);
-    return ret;
-  c->ret_addr_column = sr.rs_current.ret_addr_column;
-
-  return ret;
 }
 
 HIDDEN int

src/hppa/Gstep.c

@@ -60,7 +60,6 @@ unw_step (unw_cursor_t *cursor)
 
           c->sigcontext_format = HPPA_SCF_LINUX_RT_SIGFRAME;
           c->sigcontext_addr = sc_addr;
-          c->dwarf.ret_addr_column = UNW_HPPA_RP;
 
           if ((ret = dwarf_get (&c->dwarf, iaoq_loc, &ip)) < 0)
             {

src/mips/init.h

@@ -48,7 +48,6 @@ common_init (struct cursor *c, unsigned use_prev_instr)
   /* FIXME: Initialisation for other registers.  */
 
   c->dwarf.args_size = 0;
-  c->dwarf.ret_addr_column = 0;
   c->dwarf.stash_frames = 0;
   c->dwarf.use_prev_instr = use_prev_instr;
   c->dwarf.pi_valid = 0;

src/ppc32/init.h

@@ -61,7 +61,6 @@ common_init_ppc32 (struct cursor *c, unsigned use_prev_instr)
   c->sigcontext_addr = 0;
 
   c->dwarf.args_size = 0;
-  c->dwarf.ret_addr_column = 0;
   c->dwarf.stash_frames = 0;
   c->dwarf.use_prev_instr = use_prev_instr;
   c->dwarf.pi_valid = 0;

src/ppc64/init.h

@@ -71,7 +71,6 @@ common_init_ppc64 (struct cursor *c, unsigned use_prev_instr)
   c->sigcontext_addr = 0;
 
   c->dwarf.args_size = 0;
-  c->dwarf.ret_addr_column = 0;
   c->dwarf.stash_frames = 0;
   c->dwarf.use_prev_instr = use_prev_instr;
   c->dwarf.pi_valid = 0;

src/sh/init.h

@@ -62,7 +62,6 @@ common_init (struct cursor *c, unsigned use_prev_instr)
   c->sigcontext_pc = 0;
 
   c->dwarf.args_size = 0;
-  c->dwarf.ret_addr_column = 0;
   c->dwarf.stash_frames = 0;
   c->dwarf.use_prev_instr = use_prev_instr;
   c->dwarf.pi_valid = 0;

src/tilegx/init.h

@@ -52,7 +52,6 @@ common_init (struct cursor *c, unsigned use_prev_instr)
     return ret;
 
   c->dwarf.args_size = 0;
-  c->dwarf.ret_addr_column = 0;
   c->dwarf.stash_frames = 0;
   c->dwarf.use_prev_instr = use_prev_instr;
   c->dwarf.pi_valid = 0;

src/x86/Gstep.c

@@ -90,7 +90,6 @@ unw_step (unw_cursor_t *cursor)
           c->dwarf.loc[EIP] = eip_loc;
           c->dwarf.use_prev_instr = 1;
         }
-      c->dwarf.ret_addr_column = EIP;
 
       if (!DWARF_IS_NULL_LOC (c->dwarf.loc[EBP]))
         {

src/x86/init.h

@@ -58,7 +58,6 @@ common_init (struct cursor *c, unsigned use_prev_instr)
   c->sigcontext_addr = 0;
 
   c->dwarf.args_size = 0;
-  c->dwarf.ret_addr_column = 0;
   c->dwarf.stash_frames = 0;
   c->dwarf.use_prev_instr = use_prev_instr;
   c->dwarf.pi_valid = 0;

src/x86_64/Gstep.c

@@ -197,8 +197,6 @@ unw_step (unw_cursor_t *cursor)
           c->dwarf.use_prev_instr = 1;
         }
 
-      c->dwarf.ret_addr_column = RIP;
-
       if (DWARF_IS_NULL_LOC (c->dwarf.loc[RBP]))
         {
           ret = 0;

src/x86_64/init.h

@@ -77,7 +77,6 @@ common_init (struct cursor *c, unsigned use_prev_instr)
   c->sigcontext_addr = 0;
 
   c->dwarf.args_size = 0;
-  c->dwarf.ret_addr_column = RIP;
   c->dwarf.stash_frames = 0;
   c->dwarf.use_prev_instr = use_prev_instr;
   c->dwarf.pi_valid = 0;