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binutils-gdb
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Ignore change in name of dynamic linker during 

execution, on Solaris.  This also unbreaks pending breakpoints.

	* solist.h (struct target_so_ops): New field same.
        * solib-svr4.c (svr4_same): New.
        (_initialize_svr4_solib): Register svr4_same.
        * solib.c (update_solib_list): Use ops->same, if available.
This commit is contained in:
Vladimir Prus 2008-01-07 15:19:58 +00:00
parent 2dd3e587bd
commit a7c02bc8e1
4 changed files with 44 additions and 2 deletions
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10
gdb/ChangeLog
View File

@ -1,3 +1,13 @@
2008-01-07 Vladimir Prus <vladimir@codesourcery.com>
Ignore change in name of dynamic linker during
execution on Solaris. This also unbreaks pending breakpoints.
* solist.h (struct target_so_ops): New field same.
* solib-svr4.c (svr4_same): New.
(_initialize_svr4_solib): Register svr4_same.
* solib.c (update_solib_list): Use ops->same, if available.
2008-01-06 Christopher Faylor <me+cygwin@cgf.cx>
* win32-nat.c (win32_make_so): Use cygwin-style path to avoid warnings

20
gdb/solib-svr4.c
View File

@ -1569,6 +1569,25 @@ elf_lookup_lib_symbol (const struct objfile *objfile,
(objfile, name, linkage_name, domain, symtab);
}
static int
svr4_same (struct so_list *gdb, struct so_list *inferior)
{
if (! strcmp (gdb->so_original_name, inferior->so_original_name))
return 1;
/* On Solaris, when starting inferior we think that dynamic linker is
/usr/lib/ld.so.1, but later on, the table of loaded shared libraries
contains /lib/ld.so.1. Sometimes one file is a link to another, but
sometimes they have identical content, but are not linked to each
other. We don't restrict this check for Solaris, but the chances
of running into this situation elsewhere are very low. */
if (strcmp (gdb->so_original_name, "/usr/lib/ld.so.1") == 0
&& strcmp (inferior->so_original_name, "/lib/ld.so.1") == 0)
return 1;
return 0;
}
extern initialize_file_ftype _initialize_svr4_solib; /* -Wmissing-prototypes */
void
@ -1585,4 +1604,5 @@ _initialize_svr4_solib (void)
svr4_so_ops.open_symbol_file_object = open_symbol_file_object;
svr4_so_ops.in_dynsym_resolve_code = svr4_in_dynsym_resolve_code;
svr4_so_ops.lookup_lib_global_symbol = elf_lookup_lib_symbol;
svr4_so_ops.same = svr4_same;
}

12
gdb/solib.c
View File

@ -538,8 +538,16 @@ update_solib_list (int from_tty, struct target_ops *target)
the inferior's current list. */
while (i)
{
if (! strcmp (gdb->so_original_name, i->so_original_name))
break;
if (ops->same)
{
if (ops->same (gdb, i))
break;
}
else
{
if (! strcmp (gdb->so_original_name, i->so_original_name))
break;
}
i_link = &i->next;
i = *i_link;

4
gdb/solist.h
View File

@ -115,6 +115,10 @@ struct target_so_ops
const domain_enum domain,
struct symtab **symtab);
/* Given two so_list objects, one from the GDB thread list
and another from the list returned by current_sos, return 1
if they represent the same library. */
int (*same) (struct so_list *gdb, struct so_list *inferior);
};
/* Free the memory associated with a (so_list *). */