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authorAndrew Cagney <cagney@redhat.com>2000-07-11 07:28:25 +0000
committerAndrew Cagney <cagney@redhat.com>2000-07-11 07:28:25 +0000
commit6d9019e4c003d8676c973ce8f6d65807f5ce8120 (patch)
treed08de243f7ba28d4b43285a54c8d07c2173becde
parent23e2c83b83cf07b348412eddafa930d7dc7666e9 (diff)
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Add function bfd_elf_get_sign_extend_vma.
-rw-r--r--bfd/ChangeLog7
-rw-r--r--bfd/bfd-in.h3
-rw-r--r--bfd/bfd-in2.h3
-rw-r--r--bfd/elf.c14
4 files changed, 27 insertions, 0 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index ba58bfa..bde689f 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,10 @@
+Tue Jul 11 17:21:52 2000 Andrew Cagney <cagney@b1.cygnus.com>
+
+ * elf.c (bfd_elf_get_sign_extend_vma): Return tendency of VMA
+ addresses to be "naturally" sign extended. Return -1 if unknown.
+ * bfd-in.h (bfd_elf_get_sign_extend_vma): : Add declaration.
+ * bfd-in2.h: Regenerate.
+
Tue Jul 11 16:25:52 2000 Andrew Cagney <cagney@b1.cygnus.com>
* ecoffswap.h (ecoff_get_off, ecoff_put_off): Add ECOFF_SIGNED_32
diff --git a/bfd/bfd-in.h b/bfd/bfd-in.h
index f0a1d84..80be303 100644
--- a/bfd/bfd-in.h
+++ b/bfd/bfd-in.h
@@ -646,6 +646,9 @@ extern int bfd_get_elf_phdrs PARAMS ((bfd *abfd, void *phdrs));
/* Return the arch_size field of an elf bfd, or -1 if not elf. */
extern int bfd_elf_get_arch_size PARAMS ((bfd *));
+/* Return true if address "naturally" sign extends, or -1 if not elf. */
+extern int bfd_elf_get_sign_extend_vma PARAMS ((bfd *));
+
/* SunOS shared library support routines for the linker. */
extern struct bfd_link_needed_list *bfd_sunos_get_needed_list
diff --git a/bfd/bfd-in2.h b/bfd/bfd-in2.h
index b151e25..adf2dd8 100644
--- a/bfd/bfd-in2.h
+++ b/bfd/bfd-in2.h
@@ -646,6 +646,9 @@ extern int bfd_get_elf_phdrs PARAMS ((bfd *abfd, void *phdrs));
/* Return the arch_size field of an elf bfd, or -1 if not elf. */
extern int bfd_elf_get_arch_size PARAMS ((bfd *));
+/* Return true if address "naturally" sign extends, or -1 if not elf. */
+extern int bfd_elf_get_sign_extend_vma PARAMS ((bfd *));
+
/* SunOS shared library support routines for the linker. */
extern struct bfd_link_needed_list *bfd_sunos_get_needed_list
diff --git a/bfd/elf.c b/bfd/elf.c
index f88ebbd..d334cb9 100644
--- a/bfd/elf.c
+++ b/bfd/elf.c
@@ -1777,6 +1777,20 @@ bfd_elf_get_arch_size (abfd)
return (get_elf_backend_data (abfd))->s->arch_size;
}
+/* True if addresses "naturally" sign extend. Return 0/1 if known.
+ -1 if unknown. */
+int
+bfd_elf_get_sign_extend_vma (abfd)
+ bfd *abfd;
+{
+ if (bfd_get_flavour (abfd) != bfd_target_elf_flavour)
+ {
+ bfd_set_error (bfd_error_wrong_format);
+ return -1;
+ }
+ return (get_elf_backend_data (abfd)->sign_extend_vma);
+}
+
/* Assign all ELF section numbers. The dummy first section is handled here
too. The link/info pointers for the standard section types are filled
in here too, while we're at it. */