2003-05-19 Roland McGrath <roland@redhat.com>

	* elf.c (bfd_elf_bfd_from_remote_memory): New function.
	* bfd-in.h: Declare it.
	* elfcode.h (NAME(_bfd_elf,bfd_from_remote_memory)): New function.
	* elf-bfd.h (struct elf_backend_data): New function pointer member
	elf_backend_bfd_from_remote_memory.
	(_bfd_elf32_bfd_from_remote_memory, _bfd_elf64_bfd_from_remote_memory):
	Declare them.
	* elfxx-target.h (elf_backend_bfd_from_remote_memory): New macro.
	(elfNN_bed): Add that to the initializer.
2003-05-15  Roland McGrath  <roland@redhat.com>

	* elf.c (elfcore_grok_note): Grok NT_AUXV note, make ".auxv" section.

diff --git a/bfd/elf.c b/bfd/elf.c
index fa4416d0b600cc8834faf24430c8fbe8eefe637e..5e72eb05bf55b1001185187a02df100120330799 100644 (file)
--- a/bfd/elf.c
+++ b/bfd/elf.c
@@ -6884,6 +6884,20 @@ elfcore_grok_note (abfd, note)
 #else
       return TRUE;
 #endif
+
+    case NT_AUXV:
+      {
+       asection *sect = bfd_make_section (abfd, ".auxv");
+
+       if (sect == NULL)
+         return FALSE;
+       sect->_raw_size = note->descsz;
+       sect->filepos = note->descpos;
+       sect->flags = SEC_HAS_CONTENTS;
+       sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32;
+
+       return TRUE;
+      }
     }
 }
 
@@ -7535,3 +7549,27 @@ _bfd_elf_section_offset (abfd, info, sec, offset)
       return offset;
     }
 }
+\f
+/* Create a new BFD as if by bfd_openr.  Rather than opening a file,
+   reconstruct an ELF file by reading the segments out of remote memory
+   based on the ELF file header at EHDR_VMA and the ELF program headers it
+   points to.  If not null, *LOADBASEP is filled in with the difference
+   between the VMAs from which the segments were read, and the VMAs the
+   file headers (and hence BFD's idea of each section's VMA) put them at.
+
+   The function TARGET_READ_MEMORY is called to copy LEN bytes from the
+   remote memory at target address VMA into the local buffer at MYADDR; it
+   should return zero on success or an `errno' code on failure.  TEMPL must
+   be a BFD for an ELF target with the word size and byte order found in
+   the remote memory.  */
+
+bfd *
+bfd_elf_bfd_from_remote_memory (templ, ehdr_vma, loadbasep, target_read_memory)
+     bfd *templ;
+     bfd_vma ehdr_vma;
+     bfd_vma *loadbasep;
+     int (*target_read_memory) PARAMS ((bfd_vma vma, char *myaddr, int len));
+{
+  return (*get_elf_backend_data (templ)->elf_backend_bfd_from_remote_memory)
+    (templ, ehdr_vma, loadbasep, target_read_memory);
+}