X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gdb%2Fsolib-spu.c;h=fa2977ed60d1b09e459522744868e3c50d978a67;hb=b8162e5ac9e052b2a88912b729081600972e854c;hp=177617d1d08e9001a892361a3a78de21e50e02a5;hpb=433759f7091e71559584a924e0d18cc8a0770fc9;p=deliverable%2Fbinutils-gdb.git diff --git a/gdb/solib-spu.c b/gdb/solib-spu.c index 177617d1d0..fa2977ed60 100644 --- a/gdb/solib-spu.c +++ b/gdb/solib-spu.c @@ -1,5 +1,5 @@ /* Cell SPU GNU/Linux support -- shared library handling. - Copyright (C) 2009, 2010 Free Software Foundation, Inc. + Copyright (C) 2009-2016 Free Software Foundation, Inc. Contributed by Ulrich Weigand . @@ -19,10 +19,9 @@ along with this program. If not, see . */ #include "defs.h" +#include "solib-spu.h" #include "gdbcore.h" -#include "gdb_string.h" -#include "gdb_assert.h" -#include "gdb_stat.h" +#include #include "arch-utils.h" #include "bfd.h" #include "symtab.h" @@ -34,6 +33,7 @@ #include "observer.h" #include "breakpoint.h" #include "gdbthread.h" +#include "gdb_bfd.h" #include "spu-tdep.h" @@ -56,8 +56,8 @@ spu_relocate_main_executable (int spufs_fd) if (symfile_objfile == NULL) return; - new_offsets = alloca (symfile_objfile->num_sections - * sizeof (struct section_offsets)); + new_offsets = XALLOCAVEC (struct section_offsets, + symfile_objfile->num_sections); for (i = 0; i < symfile_objfile->num_sections; i++) new_offsets->offsets[i] = SPUADDR (spufs_fd, 0); @@ -84,13 +84,70 @@ spu_skip_standalone_loader (void) 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_resume (inferior_ptid, 1, GDB_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 + = (CORE_ADDR *) 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; + TRY + { + CORE_ADDR data = + read_memory_unsigned_integer (*ocl_program_addr_base, + sizeof (CORE_ADDR), + byte_order); + if (data != 0x0) + { + struct so_list *newobj; + + /* Allocate so_list structure. */ + newobj = XCNEW (struct so_list); + + /* Encode FD and object ID in path name. */ + xsnprintf (newobj->so_name, sizeof newobj->so_name, "@%s <%d>", + hex_string (data), + SPUADDR_SPU (*ocl_program_addr_base)); + strcpy (newobj->so_original_name, newobj->so_name); + + *link_ptr = newobj; + link_ptr = &newobj->next; + } + } + CATCH (ex, RETURN_MASK_ALL) + { + /* Ignore memory errors. */ + switch (ex.error) + { + case MEMORY_ERROR: + break; + default: + throw_exception (ex); + break; + } + } + END_CATCH + } } } @@ -99,11 +156,11 @@ spu_skip_standalone_loader (void) static struct so_list * spu_current_sos (void) { - enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch); + enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch ()); struct so_list *head; struct so_list **link_ptr; - char buf[MAX_SPE_FD * 4]; + gdb_byte buf[MAX_SPE_FD * 4]; int i, size; /* First, retrieve the SVR4 shared library list. */ @@ -139,7 +196,7 @@ spu_current_sos (void) for (i = 0; i < size; i += 4) { int fd = extract_unsigned_integer (buf + i, 4, byte_order); - struct so_list *new; + struct so_list *newobj; unsigned long long addr; char annex[32], id[100]; @@ -150,7 +207,7 @@ spu_current_sos (void) yet. Skip such entries; we'll be back for them later. */ xsnprintf (annex, sizeof annex, "%d/object-id", fd); len = target_read (¤t_target, TARGET_OBJECT_SPU, annex, - id, 0, sizeof id); + (gdb_byte *) id, 0, sizeof id); if (len <= 0 || len >= sizeof id) continue; id[len] = 0; @@ -158,18 +215,21 @@ spu_current_sos (void) continue; /* Allocate so_list structure. */ - new = XZALLOC (struct so_list); + newobj = XCNEW (struct so_list); /* 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, "@%s <%d>", + xsnprintf (newobj->so_name, sizeof newobj->so_name, "@%s <%d>", hex_string (addr), fd); - strcpy (new->so_original_name, new->so_name); + strcpy (newobj->so_original_name, newobj->so_name); - *link_ptr = new; - link_ptr = &new->next; + *link_ptr = newobj; + link_ptr = &newobj->next; } + /* Append OpenCL sos. */ + append_ocl_sos (link_ptr); + return head; } @@ -224,7 +284,9 @@ static int spu_bfd_iovec_close (bfd *nbfd, void *stream) { xfree (stream); - return 1; + + /* Zero means success. */ + return 0; } static file_ptr @@ -234,7 +296,7 @@ spu_bfd_iovec_pread (bfd *abfd, void *stream, void *buf, CORE_ADDR addr = *(CORE_ADDR *)stream; int ret; - ret = target_read_memory (addr + offset, buf, nbytes); + ret = target_read_memory (addr + offset, (gdb_byte *) buf, nbytes); if (ret != 0) { bfd_set_error (bfd_error_invalid_operation); @@ -252,6 +314,7 @@ spu_bfd_iovec_stat (bfd *abfd, void *stream, struct stat *sb) table to find the extent of the last section but that seems pointless when the size is needed only for checks of other parsed values in dbxread.c. */ + memset (sb, 0, sizeof (struct stat)); sb->st_size = INT_MAX; return 0; } @@ -260,20 +323,20 @@ static bfd * spu_bfd_fopen (char *name, CORE_ADDR addr) { bfd *nbfd; + CORE_ADDR *open_closure = XNEW (CORE_ADDR); - CORE_ADDR *open_closure = xmalloc (sizeof (CORE_ADDR)); *open_closure = addr; - nbfd = bfd_openr_iovec (xstrdup (name), "elf32-spu", - spu_bfd_iovec_open, open_closure, - spu_bfd_iovec_pread, spu_bfd_iovec_close, - spu_bfd_iovec_stat); + nbfd = gdb_bfd_openr_iovec (name, "elf32-spu", + spu_bfd_iovec_open, open_closure, + spu_bfd_iovec_pread, spu_bfd_iovec_close, + spu_bfd_iovec_stat); if (!nbfd) return NULL; if (!bfd_check_format (nbfd, bfd_object)) { - bfd_close (nbfd); + gdb_bfd_unref (nbfd); return NULL; } @@ -311,7 +374,8 @@ spu_bfd_open (char *pathname) if (sect_size > 20) { - char *buf = alloca (sect_size - 20 + strlen (original_name) + 1); + char *buf + = (char *) 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'; @@ -327,8 +391,8 @@ spu_bfd_open (char *pathname) } /* Lookup global symbol in a SPE executable. */ -static struct symbol * -spu_lookup_lib_symbol (const struct objfile *objfile, +static struct block_symbol +spu_lookup_lib_symbol (struct objfile *objfile, const char *name, const domain_enum domain) { @@ -337,14 +401,14 @@ spu_lookup_lib_symbol (const struct objfile *objfile, if (svr4_so_ops.lookup_lib_global_symbol != NULL) return svr4_so_ops.lookup_lib_global_symbol (objfile, name, domain); - return NULL; + return (struct block_symbol) {NULL, NULL}; } /* Enable shared library breakpoint. */ static int spu_enable_break (struct objfile *objfile) { - struct minimal_symbol *spe_event_sym = NULL; + struct bound_minimal_symbol spe_event_sym; /* The libspe library will call __spe_context_update_event whenever any SPE context is allocated or destroyed. */ @@ -352,19 +416,56 @@ spu_enable_break (struct objfile *objfile) NULL, objfile); /* Place a solib_event breakpoint on the symbol. */ - if (spe_event_sym) + if (spe_event_sym.minsym) { - CORE_ADDR addr = SYMBOL_VALUE_ADDRESS (spe_event_sym); + CORE_ADDR addr = BMSYMBOL_VALUE_ADDRESS (spe_event_sym); - addr = gdbarch_convert_from_func_ptr_addr (target_gdbarch, addr, + addr = gdbarch_convert_from_func_ptr_addr (target_gdbarch (), addr, ¤t_target); - create_solib_event_breakpoint (target_gdbarch, addr); + create_solib_event_breakpoint (target_gdbarch (), addr); return 1; } return 0; } +/* Enable shared library breakpoint for the + OpenCL runtime running on the SPU. */ +static void +ocl_enable_break (struct objfile *objfile) +{ + struct bound_minimal_symbol event_sym; + struct bound_minimal_symbol addr_sym; + + /* 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.minsym && addr_sym.minsym) + { + /* Place a solib_event breakpoint on the symbol. */ + CORE_ADDR event_addr = BMSYMBOL_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 = BMSYMBOL_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) @@ -435,11 +536,22 @@ spu_solib_loaded (struct so_list *so) 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); + } } +/* -Wmissing-prototypes */ +extern initialize_file_ftype _initialize_spu_solib; + void _initialize_spu_solib (void) { observer_attach_solib_loaded (spu_solib_loaded); + ocl_program_data_key = register_objfile_data (); }