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authorNick Clifton <nickc@redhat.com>2006-06-12 11:12:51 +0000
committerNick Clifton <nickc@redhat.com>2006-06-12 11:12:51 +0000
commitd07676f875b3fa1a3d527b4040c36740e6f3c395 (patch)
tree310b3b3a9b6d2a2e3930374d66e7ac140db43c42 /bfd
parent13dce8ef13f529c0629901966243f2ea23cc9494 (diff)
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PR binutils/2735
* elflink.c (elf_link_add_object_symbols): Fix the warning message about mismatched alignments to allow for the case where the common alignment has been deduced from the section alignment. * bfd.c (_bfd_default_error_handler): Update comment to explain why bfd and asection varargs are out of order. Explicitly catch and abort on NULL bfd and asection arguments.
Diffstat (limited to 'bfd')
-rw-r--r--bfd/ChangeLog10
-rw-r--r--bfd/bfd.c29
-rw-r--r--bfd/elflink.c20
3 files changed, 52 insertions, 7 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index e9163e6..a1b2a3f 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,13 @@
+2006-06-12 Nick Clifton <nickc@redhat.com>
+
+ PR binutils/2735
+ * elflink.c (elf_link_add_object_symbols): Fix the warning message
+ about mismatched alignments to allow for the case where the common
+ alignment has been deduced from the section alignment.
+ * bfd.c (_bfd_default_error_handler): Update comment to explain
+ why bfd and asection varargs are out of order. Explicitly catch
+ and abort on NULL bfd and asection arguments.
+
2006-06-11 Richard Sandiford <richard@codesourcery.com>
Thiemo Seufer <ths@mips.com>
diff --git a/bfd/bfd.c b/bfd/bfd.c
index ebfd314..238bbd6 100644
--- a/bfd/bfd.c
+++ b/bfd/bfd.c
@@ -419,6 +419,23 @@ static const char *_bfd_error_program_name;
%A section name from section. For group components, print group name too.
%B file name from bfd. For archive components, prints archive too.
+
+ Note - because these two extra format specifiers require special handling
+ they are scanned for and processed in this function, before calling
+ vfprintf. This means that the *arguments* for these format specifiers
+ must be the first ones in the variable argument list, regardless of where
+ the specifiers appear in the format string. Thus for example calling
+ this function with a format string of:
+
+ "blah %s blah %A blah %d blah %B"
+
+ would involve passing the arguments as:
+
+ "blah %s blah %A blah %d blah %B",
+ asection_for_the_%A,
+ bfd_for_the_%B,
+ string_for_the_%s,
+ integer_for_the_%d);
*/
void
@@ -483,7 +500,11 @@ _bfd_default_error_handler (const char *fmt, ...)
if (p[1] == 'B')
{
bfd *abfd = va_arg (ap, bfd *);
- if (abfd->my_archive)
+
+ if (abfd == NULL)
+ /* Invoking %B with a null bfd pointer is an internal error. */
+ abort ();
+ else if (abfd->my_archive)
snprintf (bufp, avail, "%s(%s)",
abfd->my_archive->filename, abfd->filename);
else
@@ -492,10 +513,14 @@ _bfd_default_error_handler (const char *fmt, ...)
else
{
asection *sec = va_arg (ap, asection *);
- bfd *abfd = sec->owner;
+ bfd *abfd;
const char *group = NULL;
struct coff_comdat_info *ci;
+ if (sec == NULL)
+ /* Invoking %A with a null section pointer is an internal error. */
+ abort ();
+ abfd = sec->owner;
if (abfd != NULL
&& bfd_get_flavour (abfd) == bfd_target_elf_flavour
&& elf_next_in_group (sec) != NULL
diff --git a/bfd/elflink.c b/bfd/elflink.c
index c5b1007..f4c63f4 100644
--- a/bfd/elflink.c
+++ b/bfd/elflink.c
@@ -3922,11 +3922,21 @@ elf_link_add_object_symbols (bfd *abfd, struct bfd_link_info *info)
}
if (normal_align < common_align)
- (*_bfd_error_handler)
- (_("Warning: alignment %u of symbol `%s' in %B"
- " is smaller than %u in %B"),
- normal_bfd, common_bfd,
- 1 << normal_align, name, 1 << common_align);
+ {
+ /* PR binutils/2735 */
+ if (normal_bfd == NULL)
+ (*_bfd_error_handler)
+ (_("Warning: alignment %u of common symbol `%s' in %B"
+ " is greater than the alignment (%u) of its section %A"),
+ common_bfd, h->root.u.def.section,
+ 1 << common_align, name, 1 << normal_align);
+ else
+ (*_bfd_error_handler)
+ (_("Warning: alignment %u of symbol `%s' in %B"
+ " is smaller than %u in %B"),
+ normal_bfd, common_bfd,
+ 1 << normal_align, name, 1 << common_align);
+ }
}
/* Remember the symbol size and type. */