From: Ulrich Drepper <drepper@redhat.com>
Date: Sat, 12 Jan 2008 03:06:47 +0000 (+0000)
Subject: Add comment with absolute address to %rip based address modes.
X-Git-Tag: elfutils-0.132~17
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=fd47989094090138b0c857d067ac7ff05e7b6d91;p=thirdparty%2Felfutils.git

Add comment with absolute address to %rip based address modes.
---

diff --git a/libcpu/ChangeLog b/libcpu/ChangeLog
index cb0f4edfa..f4478795f 100644
--- a/libcpu/ChangeLog
+++ b/libcpu/ChangeLog
@@ -1,5 +1,12 @@
 2008-01-11  Ulrich Drepper  <drepper@redhat.com>
 
+	* i386_disasm.c (struct output)buffer): Add labelbuf, labelbufsize,
+	symaddr_use, and symaddr fields.
+	(i386_disasm): Remove labelbuf and labelbufsize variables.
+	Add back %e format.  Implement %a and %l formats.
+	* i386_data.h (general_mod$r_m): Set symaddr_use and symaddr for %rip
+	base addressing.
+
 	* i386_disasm.c (i386_disasm): Resize output buffer if necessary.
 	Optimize output_data initialization.  Free buffers before return.
 	(struct output_data): Remove op1str field.  Adjust code.
diff --git a/libcpu/i386_data.h b/libcpu/i386_data.h
index 89fa3089f..43eb13f95 100644
--- a/libcpu/i386_data.h
+++ b/libcpu/i386_data.h
@@ -264,6 +264,9 @@ general_mod$r_m (struct output_data *d)
 #ifdef X86_64
 	      n = snprintf (tmpbuf, sizeof (tmpbuf), "%s0x%" PRIx32 "(%%rip)",
 			    disp < 0 ? "-" : "", disp < 0 ? -disp : disp);
+
+	      d->symaddr_use = addr_rel_always;
+	      d->symaddr = disp;
 #else
 	      n = snprintf (tmpbuf, sizeof (tmpbuf), "0x%" PRIx32, disp);
 #endif
diff --git a/libcpu/i386_disasm.c b/libcpu/i386_disasm.c
index 2a843923a..57a870f1f 100644
--- a/libcpu/i386_disasm.c
+++ b/libcpu/i386_disasm.c
@@ -199,6 +199,17 @@ struct output_data
   const uint8_t *end;
   DisasmGetSymCB_t symcb;
   void *symcbarg;
+  char *labelbuf;
+  size_t labelbufsize;
+  enum
+    {
+      addr_none = 0,
+      addr_abs_symbolic,
+      addr_abs_always,
+      addr_rel_symbolic,
+      addr_rel_always
+    } symaddr_use;
+  GElf_Addr symaddr;
 };
 
 
@@ -233,8 +244,6 @@ i386_disasm (const uint8_t **startp, const uint8_t *end, GElf_Addr addr,
 	     void *outcbarg, void *symcbarg)
 {
   const char *save_fmt = fmt;
-  char *labelbuf = NULL;
-  //size_t labelbufsize = 0;
 
 #define BUFSIZE 512
   char initbuf[BUFSIZE];
@@ -800,6 +809,56 @@ i386_disasm (const uint8_t **startp, const uint8_t *end, GElf_Addr addr,
 
 		      string_end_idx = bufcnt;
 		    }
+		  else
+		    bufcnt = string_end_idx;
+		  break;
+
+		case 'e':
+		  string_end_idx = bufcnt;
+		  break;
+
+		case 'a':
+		  /* Pad to requested column.  */
+		  while (bufcnt < (size_t) width)
+		    ADD_CHAR (' ');
+		  width = 0;
+		  break;
+
+		case 'l':
+		  if (output_data.labelbuf != NULL
+		      && output_data.labelbuf[0] != '\0')
+		    {
+		      ADD_STRING (output_data.labelbuf);
+		      output_data.labelbuf[0] = '\0';
+		      string_end_idx = bufcnt;
+		    }
+		  else if (output_data.symaddr_use != addr_none)
+		    {
+		      GElf_Addr symaddr = output_data.symaddr;
+		      if (output_data.symaddr_use >= addr_rel_symbolic)
+			symaddr += addr + param_start - begin;
+
+		      // XXX Lookup symbol based on symaddr
+		      const char *symstr = NULL;
+
+		      size_t bufavail = bufsize - bufcnt;
+		      int r = 0;
+		      if (symstr != NULL)
+			r = snprintf (&buf[bufcnt], bufavail, "# %s", symstr);
+		      else if (output_data.symaddr_use == addr_abs_always
+			       || output_data.symaddr_use == addr_rel_always)
+			r = snprintf (&buf[bufcnt], bufavail, "# %#" PRIx64,
+				      (uint64_t) symaddr);
+
+		      if (r < 0)
+			goto not;
+		      if ((size_t) r >= bufavail)
+			goto enomem;
+		      bufcnt += r;
+		      string_end_idx = bufcnt;
+
+		      output_data.symaddr_use = addr_none;
+		    }
 		  break;
 		}
 
@@ -841,7 +900,7 @@ i386_disasm (const uint8_t **startp, const uint8_t *end, GElf_Addr addr,
     }
 
  do_ret:
-  free (labelbuf);
+  free (output_data.labelbuf);
   if (buf != initbuf)
     free (buf);
 
diff --git a/src/objdump.c b/src/objdump.c
index 7b95ddd62..91fa87509 100644
--- a/src/objdump.c
+++ b/src/objdump.c
@@ -756,8 +756,7 @@ show_disasm (Ebl *ebl, const char *fname, uint32_t shstrndx)
 	  info.last_end = info.cur = data->d_buf;
 
 	  disasm_cb (ctx, &info.cur, info.cur + data->d_size, info.addr,
-		     //"%7m%e %.1o%e,%.2o%e,%.3o%e", disasm_output, &info,
-		     "%7m %.1o,%.2o,%.3o", disasm_output, &info,
+		     "%7m %.1o,%.2o,%.3o%34a %l", disasm_output, &info,
 		     NULL /* XXX */);
 	}
     }
@@ -776,7 +775,7 @@ handle_elf (Elf *elf, const char *prefix, const char *fname,
   /* Get the backend for this object file type.  */
   Ebl *ebl = ebl_openbackend (elf);
 
-  printf (gettext ("%s: elf%d-%s\n\n"),
+  printf ("%s: elf%d-%s\n\n",
 	  fname, gelf_getclass (elf) == ELFCLASS32 ? 32 : 64,
 	  ebl_backend_name (ebl));
 
diff --git a/tests/ChangeLog b/tests/ChangeLog
index 458acd150..95ed78337 100644
--- a/tests/ChangeLog
+++ b/tests/ChangeLog
@@ -1,3 +1,8 @@
+2008-01-11  Ulrich Drepper  <drepper@redhat.com>
+
+	* testfile45.expect.bz2: Adjust for adding of address for %rip based
+	address mode.
+
 2008-01-10  Ulrich Drepper  <drepper@redhat.com>
 
 	* testfile45.S.bz2: Add more tests.
diff --git a/tests/testfile45.expect.bz2 b/tests/testfile45.expect.bz2
index 9236cf7f9..adce5e0ed 100644
Binary files a/tests/testfile45.expect.bz2 and b/tests/testfile45.expect.bz2 differ