/* Cell SPU GNU/Linux support -- shared library handling.
- Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+ Copyright (C) 2009, 2010, 2011 Free Software Foundation, Inc.
Contributed by Ulrich Weigand <uweigand@de.ibm.com>.
#include "observer.h"
#include "breakpoint.h"
#include "gdbthread.h"
+#include "exceptions.h"
#include "spu-tdep.h"
static void
spu_relocate_main_executable (int spufs_fd)
{
- struct objfile *objfile;
- struct cleanup *old_chain;
struct section_offsets *new_offsets;
int i;
- for (objfile = symfile_objfile;
- objfile;
- objfile = objfile->separate_debug_objfile)
- {
- new_offsets = xcalloc (objfile->num_sections,
- sizeof (struct section_offsets));
- old_chain = make_cleanup (xfree, new_offsets);
+ if (symfile_objfile == NULL)
+ return;
- for (i = 0; i < objfile->num_sections; i++)
- new_offsets->offsets[i] = SPUADDR (spufs_fd, 0);
+ new_offsets = alloca (symfile_objfile->num_sections
+ * sizeof (struct section_offsets));
- objfile_relocate (objfile, new_offsets);
- do_cleanups (old_chain);
- }
+ for (i = 0; i < symfile_objfile->num_sections; i++)
+ new_offsets->offsets[i] = SPUADDR (spufs_fd, 0);
+
+ objfile_relocate (symfile_objfile, new_offsets);
}
/* When running a stand-alone SPE executable, we may need to skip one more
this will step past the first instruction of the stand-alone SPE
executable loader, but we don't care about that. */
- inferior_thread ()->in_infcall = 1; /* Suppress MI messages. */
+ inferior_thread ()->control.in_infcall = 1; /* Suppress MI messages. */
target_resume (inferior_ptid, 1, TARGET_SIGNAL_0);
target_wait (minus_one_ptid, &ws, 0);
set_executing (minus_one_ptid, 0);
- inferior_thread ()->in_infcall = 0;
+ inferior_thread ()->control.in_infcall = 0;
+ }
+}
+
+static const struct objfile_data *ocl_program_data_key;
+
+/* Appends OpenCL programs to the list of `struct so_list' objects. */
+static void
+append_ocl_sos (struct so_list **link_ptr)
+{
+ CORE_ADDR *ocl_program_addr_base;
+ struct objfile *objfile;
+
+ ALL_OBJFILES (objfile)
+ {
+ ocl_program_addr_base = objfile_data (objfile, ocl_program_data_key);
+ if (ocl_program_addr_base != NULL)
+ {
+ enum bfd_endian byte_order = bfd_big_endian (objfile->obfd)?
+ BFD_ENDIAN_BIG : BFD_ENDIAN_LITTLE;
+ volatile struct gdb_exception ex;
+ TRY_CATCH (ex, RETURN_MASK_ALL)
+ {
+ CORE_ADDR data =
+ read_memory_unsigned_integer (*ocl_program_addr_base,
+ sizeof (CORE_ADDR),
+ byte_order);
+ if (data != 0x0)
+ {
+ struct so_list *new;
+
+ /* Allocate so_list structure. */
+ new = XZALLOC (struct so_list);
+
+ /* Encode FD and object ID in path name. */
+ xsnprintf (new->so_name, sizeof new->so_name, "@%s <%d>",
+ hex_string (data),
+ SPUADDR_SPU (*ocl_program_addr_base));
+ strcpy (new->so_original_name, new->so_name);
+
+ *link_ptr = new;
+ link_ptr = &new->next;
+ }
+ }
+ if (ex.reason < 0)
+ {
+ /* Ignore memory errors. */
+ switch (ex.error)
+ {
+ case MEMORY_ERROR:
+ break;
+ default:
+ throw_exception (ex);
+ break;
+ }
+ }
+ }
}
}
if (size == 4)
{
int fd = extract_unsigned_integer (buf, 4, byte_order);
+
spu_relocate_main_executable (fd);
/* Re-enable breakpoints after main SPU context was established;
/* Encode FD and object ID in path name. Choose the name so as not
to conflict with any (normal) SVR4 library path name. */
- xsnprintf (new->so_name, sizeof new->so_name, "@0x%llx <%d>", addr, fd);
+ xsnprintf (new->so_name, sizeof new->so_name, "@%s <%d>",
+ hex_string (addr), fd);
strcpy (new->so_original_name, new->so_name);
*link_ptr = new;
link_ptr = &new->next;
}
+ /* Append OpenCL sos. */
+ append_ocl_sos (link_ptr);
+
return head;
}
if (spu_name)
{
int sect_size = bfd_section_size (abfd, spu_name);
+
if (sect_size > 20)
{
char *buf = alloca (sect_size - 20 + strlen (original_name) + 1);
+
bfd_get_section_contents (abfd, spu_name, buf, 20, sect_size - 20);
buf[sect_size - 20] = '\0';
static struct symbol *
spu_lookup_lib_symbol (const struct objfile *objfile,
const char *name,
- const char *linkage_name,
const domain_enum domain)
{
if (bfd_get_arch (objfile->obfd) == bfd_arch_spu)
- return lookup_global_symbol_from_objfile (objfile, name, linkage_name,
- domain);
+ return lookup_global_symbol_from_objfile (objfile, name, domain);
if (svr4_so_ops.lookup_lib_global_symbol != NULL)
- return svr4_so_ops.lookup_lib_global_symbol (objfile, name, linkage_name,
- domain);
+ return svr4_so_ops.lookup_lib_global_symbol (objfile, name, domain);
return NULL;
}
if (spe_event_sym)
{
CORE_ADDR addr = SYMBOL_VALUE_ADDRESS (spe_event_sym);
+
addr = gdbarch_convert_from_func_ptr_addr (target_gdbarch, addr,
¤t_target);
create_solib_event_breakpoint (target_gdbarch, addr);
return 0;
}
+/* Enable shared library breakpoint for the
+ OpenCL runtime running on the SPU. */
+static void
+ocl_enable_break (struct objfile *objfile)
+{
+ struct minimal_symbol *event_sym = NULL;
+ struct minimal_symbol *addr_sym = NULL;
+
+ /* The OpenCL runtime on the SPU will call __opencl_program_update_event
+ whenever an OpenCL program is loaded. */
+ event_sym = lookup_minimal_symbol ("__opencl_program_update_event", NULL,
+ objfile);
+ /* The PPU address of the OpenCL program can be found
+ at opencl_elf_image_address. */
+ addr_sym = lookup_minimal_symbol ("opencl_elf_image_address", NULL, objfile);
+
+ if (event_sym && addr_sym)
+ {
+ /* Place a solib_event breakpoint on the symbol. */
+ CORE_ADDR event_addr = SYMBOL_VALUE_ADDRESS (event_sym);
+ create_solib_event_breakpoint (get_objfile_arch (objfile), event_addr);
+
+ /* Store the address of the symbol that will point to OpenCL program
+ using the per-objfile private data mechanism. */
+ if (objfile_data (objfile, ocl_program_data_key) == NULL)
+ {
+ CORE_ADDR *ocl_program_addr_base = OBSTACK_CALLOC (
+ &objfile->objfile_obstack,
+ objfile->sections_end - objfile->sections,
+ CORE_ADDR);
+ *ocl_program_addr_base = SYMBOL_VALUE_ADDRESS (addr_sym);
+ set_objfile_data (objfile, ocl_program_data_key,
+ ocl_program_addr_base);
+ }
+ }
+}
+
/* Create inferior hook. */
static void
spu_solib_create_inferior_hook (int from_tty)
{
- /* Remove all previously installed solib breakpoints. Both the SVR4
- code and us will re-install all required breakpoints. */
- remove_solib_event_breakpoints ();
-
/* Handle SPE stand-alone executables. */
if (spu_standalone_p ())
{
{
if (strstr (so->so_original_name, "/libspe") != NULL)
{
- solib_read_symbols (so, so->from_tty ? SYMFILE_VERBOSE : 0);
+ solib_read_symbols (so, 0);
spu_enable_break (so->objfile);
}
+ /* In case the OpenCL runtime is loaded we install a breakpoint
+ to get notified whenever an OpenCL program gets loaded. */
+ if (strstr (so->so_name, "CLRuntimeAccelCellSPU@") != NULL)
+ {
+ solib_read_symbols (so, 0);
+ ocl_enable_break (so->objfile);
+ }
}
void
_initialize_spu_solib (void)
{
observer_attach_solib_loaded (spu_solib_loaded);
+ ocl_program_data_key = register_objfile_data ();
}
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