Squashed 'third_party/elfutils/' content from commit 555e15e

Change-Id: I61cde98949e47e5c8c09c33260de17f30921be79
git-subtree-dir: third_party/elfutils
git-subtree-split: 555e15ebe8bf1eb33d00747173cfc80cc65648a4
diff --git a/tests/asm-tst8.c b/tests/asm-tst8.c
new file mode 100644
index 0000000..4fb0d99
--- /dev/null
+++ b/tests/asm-tst8.c
@@ -0,0 +1,189 @@
+/* Copyright (C) 2002, 2005 Red Hat, Inc.
+   This file is part of elfutils.
+   Written by Ulrich Drepper <drepper@redhat.com>, 2002.
+
+   This file is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   elfutils is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <fcntl.h>
+#include <inttypes.h>
+#include ELFUTILS_HEADER(asm)
+#include <libelf.h>
+#include <stdio.h>
+#include <unistd.h>
+
+
+static const char fname[] = "asm-tst8-out.o";
+
+
+int
+main (void)
+{
+  int result = 0;
+  size_t cnt;
+  AsmCtx_t *ctx;
+  Elf *elf;
+  int fd;
+
+  elf_version (EV_CURRENT);
+
+  Ebl *ebl = ebl_openbackend_machine (EM_386);
+  if (ebl == NULL)
+    {
+      puts ("cannot open backend library");
+      return 1;
+    }
+
+  ctx = asm_begin (fname, ebl, false);
+  if (ctx == NULL)
+    {
+      printf ("cannot create assembler context: %s\n", asm_errmsg (-1));
+      return 1;
+    }
+
+  if (asm_newabssym (ctx, "tst8-out.s", 4, 0xfeedbeef, STT_FILE, STB_LOCAL)
+      == NULL)
+    {
+      printf ("cannot create absolute symbol: %s\n", asm_errmsg (-1));
+      asm_abort (ctx);
+      return 1;
+    }
+
+  /* Create the output file.  */
+  if (asm_end (ctx) != 0)
+    {
+      printf ("cannot create output file: %s\n", asm_errmsg (-1));
+      asm_abort (ctx);
+      return 1;
+    }
+
+  /* Check the file.  */
+  fd = open (fname, O_RDONLY);
+  if (fd == -1)
+    {
+      printf ("cannot open generated file: %m\n");
+      result = 1;
+      goto out;
+    }
+
+  elf = elf_begin (fd, ELF_C_READ, NULL);
+  if (elf == NULL)
+    {
+      printf ("cannot create ELF descriptor: %s\n", elf_errmsg (-1));
+      result = 1;
+      goto out_close;
+    }
+  if (elf_kind (elf) != ELF_K_ELF)
+    {
+      puts ("not a valid ELF file");
+      result = 1;
+      goto out_close2;
+    }
+
+  for (cnt = 1; 1; ++cnt)
+    {
+      Elf_Scn *scn;
+      GElf_Shdr shdr_mem;
+      GElf_Shdr *shdr;
+
+      scn = elf_getscn (elf, cnt);
+      if (scn == NULL)
+	{
+	  printf ("cannot get section %zd: %s\n", cnt, elf_errmsg (-1));
+	  result = 1;
+	  continue;
+	}
+
+      shdr = gelf_getshdr (scn, &shdr_mem);
+      if (shdr == NULL)
+	{
+	  printf ("cannot get section header for section %zd: %s\n",
+		  cnt, elf_errmsg (-1));
+	  result = 1;
+	  continue;
+	}
+      /* We are looking for the symbol table.  */
+      if (shdr->sh_type != SHT_SYMTAB)
+	continue;
+
+      for (cnt = 1; cnt< (shdr->sh_size
+			  / gelf_fsize (elf, ELF_T_SYM, 1, EV_CURRENT));
+	   ++cnt)
+	{
+	  GElf_Sym sym_mem;
+	  GElf_Sym *sym;
+
+	  if (cnt > 1)
+	    {
+	      puts ("too many symbol");
+	      result = 1;
+	      break;
+	    }
+
+	  sym = gelf_getsym (elf_getdata (scn, NULL), cnt, &sym_mem);
+	  if (sym == NULL)
+	    {
+	      printf ("cannot get symbol %zu: %s\n", cnt, elf_errmsg (-1));
+	      result = 1;
+	    }
+	  else
+	    {
+	      if (sym->st_shndx != SHN_ABS)
+		{
+		  printf ("expected common symbol, got section %u\n",
+			  (unsigned int) sym->st_shndx);
+		  result = 1;
+		}
+
+	      if (sym->st_value != 0xfeedbeef)
+		{
+		  printf ("requested value 0xfeedbeef, is %#" PRIxMAX "\n",
+			  (uintmax_t) sym->st_value);
+		  result = 1;
+		}
+
+	      if (sym->st_size != 4)
+		{
+		  printf ("requested size 4, is %" PRIuMAX "\n",
+			  (uintmax_t) sym->st_value);
+		  result = 1;
+		}
+
+	      if (GELF_ST_TYPE (sym->st_info) != STT_FILE)
+		{
+		  printf ("requested type FILE, is %u\n",
+			  (unsigned int) GELF_ST_TYPE (sym->st_info));
+		  result = 1;
+		}
+	    }
+	}
+
+      break;
+    }
+
+ out_close2:
+  elf_end (elf);
+ out_close:
+  close (fd);
+ out:
+  /* We don't need the file anymore.  */
+  unlink (fname);
+
+  ebl_closebackend (ebl);
+
+  return result;
+}