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src/jdk.hotspot.agent/linux/native/libsaproc/symtab.c

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@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2003, 2019, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 2020, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.

@@ -33,15 +33,10 @@
 
 // ----------------------------------------------------
 // functions for symbol lookups
 // ----------------------------------------------------
 
-struct elf_section {
-  ELF_SHDR   *c_shdr;
-  void       *c_data;
-};
-
 struct elf_symbol {
   char *name;
   uintptr_t offset;
   uintptr_t size;
 };

@@ -156,41 +151,10 @@
     close(fd);
     return -1;
   }
 }
 
-/* Find an ELF section.  */
-static struct elf_section *find_section_by_name(char *name,
-                                                int fd,
-                                                ELF_EHDR *ehdr,
-                                                struct elf_section *scn_cache)
-{
-  char *strtab;
-  int cnt;
-  int strtab_size;
-
-  // Section cache have to already contain data for e_shstrndx section.
-  // If it's not true - elf file is broken, so just bail out
-  if (scn_cache[ehdr->e_shstrndx].c_data == NULL) {
-    return NULL;
-  }
-
-  strtab = scn_cache[ehdr->e_shstrndx].c_data;
-  strtab_size = scn_cache[ehdr->e_shstrndx].c_shdr->sh_size;
-
-  for (cnt = 0; cnt < ehdr->e_shnum; ++cnt) {
-    if (scn_cache[cnt].c_shdr->sh_name < strtab_size) {
-      if (strcmp(scn_cache[cnt].c_shdr->sh_name + strtab, name) == 0) {
-        scn_cache[cnt].c_data = read_section_data(fd, ehdr, scn_cache[cnt].c_shdr);
-        return &scn_cache[cnt];
-      }
-    }
-  }
-
-  return NULL;
-}
-
 /* Look for a ".gnu_debuglink" section.  If one exists, try to open a
    suitable debuginfo file.  */
 static int open_file_from_debug_link(const char *name,
                                      int fd,
                                      ELF_EHDR *ehdr,
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