PowerPC64 synthetic symbols

[Alan Modra <amodra@gmail.com>]

Nick pointed out to me in a private email that STT_FILE and a bunch of
other symbol types aren't proper symbols to mark the start of a
function's code.

	* elf64-ppc.c (ppc64_elf_get_synthetic_symtab): Trim uninteresting
	symbols.  Use size_t counts.  Delete redundant opd test.

diff --git a/bfd/elf64-ppc.c b/bfd/elf64-ppc.c
index 48eeb55..751ad77 100644
--- a/bfd/elf64-ppc.c
+++ b/bfd/elf64-ppc.c
@@ -3269,10 +3269,9 @@ ppc64_elf_get_synthetic_symtab (bfd *abfd,
 				asymbol **ret)
 {
   asymbol *s;
-  long i;
-  long count;
+  size_t i, j, count;
   char *names;
-  long symcount, codesecsym, codesecsymend, secsymend, opdsymend;
+  size_t symcount, codesecsym, codesecsymend, secsymend, opdsymend;
   asection *opd = NULL;
   bfd_boolean relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0;
   asymbol **syms;
@@ -3317,13 +3316,20 @@ ppc64_elf_get_synthetic_symtab (bfd *abfd,
       else
 	memcpy (syms, static_syms, (symcount + 1) * sizeof (*syms));
 
+      /* Trim uninteresting symbols.  Interesting symbols are section,
+	 function, and notype symbols.  */
+      for (i = 0, j = 0; i < symcount; ++i)
+	if ((syms[i]->flags & (BSF_FILE | BSF_OBJECT | BSF_THREAD_LOCAL
+			       | BSF_RELC | BSF_SRELC)) == 0)
+	  syms[j++] = syms[i];
+      symcount = j;
+
       synthetic_relocatable = relocatable;
       synthetic_opd = opd;
       qsort (syms, symcount, sizeof (*syms), compare_symbols);
 
       if (!relocatable && symcount > 1)
 	{
-	  long j;
 	  /* Trim duplicate syms, since we may have merged the normal and
 	     dynamic symbols.  Actually, we only care about syms that have
 	     different values, so trim any with the same value.  */
@@ -3339,7 +3345,7 @@ ppc64_elf_get_synthetic_symtab (bfd *abfd,
 	 sym->section directly.  With separate debug info files, the
 	 symbols will be extracted from the debug file while abfd passed
 	 to this function is the real binary.  */
-      if (opd != NULL && strcmp (syms[i]->section->name, ".opd") == 0)
+      if (strcmp (syms[i]->section->name, ".opd") == 0)
 	++i;
       codesecsym = i;
 
@@ -3374,7 +3380,7 @@ ppc64_elf_get_synthetic_symtab (bfd *abfd,
       bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
       arelent *r;
       size_t size;
-      long relcount;
+      size_t relcount;
 
       if (opdsymend == secsymend)
 	goto done;
@@ -3473,7 +3479,7 @@ ppc64_elf_get_synthetic_symtab (bfd *abfd,
       bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
       bfd_byte *contents = NULL;
       size_t size;
-      long plt_count = 0;
+      size_t plt_count = 0;
       bfd_vma glink_vma = 0, resolv_vma = 0;
       asection *dynamic, *glink = NULL, *relplt = NULL;
       arelent *p;
@@ -3610,7 +3616,7 @@ ppc64_elf_get_synthetic_symtab (bfd *abfd,
 	  ent = bfd_get_64 (abfd, contents + syms[i]->value);
 	  if (!sym_exists_at (syms, opdsymend, symcount, -1, ent))
 	    {
-	      long lo, hi;
+	      size_t lo, hi;
 	      size_t len;
 	      asection *sec = abfd->sections;
 
@@ -3619,7 +3625,7 @@ ppc64_elf_get_synthetic_symtab (bfd *abfd,
 	      hi = codesecsymend;
 	      while (lo < hi)
 		{
-		  long mid = (lo + hi) >> 1;
+		  size_t mid = (lo + hi) >> 1;
 		  if (syms[mid]->section->vma < ent)
 		    lo = mid + 1;
 		  else if (syms[mid]->section->vma > ent)

-- 
Alan Modra
Australia Development Lab, IBM