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authorElena Zannoni <ezannoni@kwikemart.cygnus.com>2002-08-21 22:56:02 +0000
committerElena Zannoni <ezannoni@kwikemart.cygnus.com>2002-08-21 22:56:02 +0000
commitfa82d8ac44dae0841fd1ee8adb795f9ce0ae2601 (patch)
tree6fbb7851120e5734864650a54c120306553361e5
parente9408e8cb4b3e2c0bfb1d57f4d1284d1acd08df4 (diff)
downloadgdb-fa82d8ac44dae0841fd1ee8adb795f9ce0ae2601.tar.gz
2002-08-21 Elena Zannoni <ezannoni@redhat.com>
* rs6000-tdep.c (rs6000_gdbarch_init): Figure out whether we have an e500 executable.
-rw-r--r--gdb/ChangeLog5
-rw-r--r--gdb/rs6000-tdep.c22
2 files changed, 27 insertions, 0 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index a2c78b95735..c010aeb9934 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2002-08-21 Elena Zannoni <ezannoni@redhat.com>
+
+ * rs6000-tdep.c (rs6000_gdbarch_init): Figure out whether we have
+ an e500 executable.
+
2002-08-21 Michael Snyder <msnyder@redhat.com>
* mips-tdep.c (MSYMBOL_IS_SPECIAL): Replace macro with function.
diff --git a/gdb/rs6000-tdep.c b/gdb/rs6000-tdep.c
index 864ac64cdcd..1878bcb4223 100644
--- a/gdb/rs6000-tdep.c
+++ b/gdb/rs6000-tdep.c
@@ -2426,6 +2426,7 @@ rs6000_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
bfd abfd;
int sysv_abi;
enum gdb_osabi osabi = GDB_OSABI_UNKNOWN;
+ asection *sect;
from_xcoff_exec = info.abfd && info.abfd->format == bfd_object &&
bfd_get_flavour (info.abfd) == bfd_target_xcoff_flavour;
@@ -2499,6 +2500,27 @@ rs6000_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
tdep = xmalloc (sizeof (struct gdbarch_tdep));
tdep->wordsize = wordsize;
tdep->osabi = osabi;
+
+ /* For e500 executables, the apuinfo section is of help here. Such
+ section contains the identifier and revision number of each
+ Application-specific Processing Unit that is present on the
+ chip. The content of the section is determined by the assembler
+ which looks at each instruction and determines which unit (and
+ which version of it) can execute it. In our case we just look for
+ the existance of the section. */
+
+ if (info.abfd)
+ {
+ sect = bfd_get_section_by_name (info.abfd, ".PPC.EMB.apuinfo");
+ if (sect)
+ {
+ arch = info.bfd_arch_info->arch;
+ mach = bfd_mach_ppc_e500;
+ bfd_default_set_arch_mach (&abfd, arch, mach);
+ info.bfd_arch_info = bfd_get_arch_info (&abfd);
+ }
+ }
+
gdbarch = gdbarch_alloc (&info, tdep);
power = arch == bfd_arch_rs6000;