diff options
Diffstat (limited to 'gdb/ppc-linux-tdep.c')
| -rw-r--r-- | gdb/ppc-linux-tdep.c | 317 |
1 files changed, 0 insertions, 317 deletions
diff --git a/gdb/ppc-linux-tdep.c b/gdb/ppc-linux-tdep.c index c6181c9..ce3c727 100644 --- a/gdb/ppc-linux-tdep.c +++ b/gdb/ppc-linux-tdep.c @@ -31,7 +31,6 @@ #include "osabi.h" #include "regset.h" #include "solib-svr4.h" -#include "solib-spu.h" #include "solib.h" #include "solist.h" #include "ppc-tdep.h" @@ -48,7 +47,6 @@ #include "elf/common.h" #include "elf/ppc64.h" #include "arch-utils.h" -#include "spu-tdep.h" #include "xml-syscall.h" #include "linux-tdep.h" #include "linux-record.h" @@ -66,7 +64,6 @@ #include "features/rs6000/powerpc-32l.c" #include "features/rs6000/powerpc-altivec32l.c" -#include "features/rs6000/powerpc-cell32l.c" #include "features/rs6000/powerpc-vsx32l.c" #include "features/rs6000/powerpc-isa205-32l.c" #include "features/rs6000/powerpc-isa205-altivec32l.c" @@ -76,7 +73,6 @@ #include "features/rs6000/powerpc-isa207-htm-vsx32l.c" #include "features/rs6000/powerpc-64l.c" #include "features/rs6000/powerpc-altivec64l.c" -#include "features/rs6000/powerpc-cell64l.c" #include "features/rs6000/powerpc-vsx64l.c" #include "features/rs6000/powerpc-isa205-64l.c" #include "features/rs6000/powerpc-isa205-altivec64l.c" @@ -1555,19 +1551,12 @@ ppc_linux_write_pc (struct regcache *regcache, CORE_ADDR pc) regcache_cooked_write_unsigned (regcache, PPC_TRAP_REGNUM, -1); } -static int -ppc_linux_spu_section (bfd *abfd, asection *asect, void *user_data) -{ - return startswith (bfd_section_name (asect), "SPU/"); -} - static const struct target_desc * ppc_linux_core_read_description (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd) { struct ppc_linux_features features = ppc_linux_no_features; - asection *cell = bfd_sections_find_if (abfd, ppc_linux_spu_section, NULL); asection *altivec = bfd_get_section_by_name (abfd, ".reg-ppc-vmx"); asection *vsx = bfd_get_section_by_name (abfd, ".reg-ppc-vsx"); asection *section = bfd_get_section_by_name (abfd, ".reg"); @@ -1592,9 +1581,6 @@ ppc_linux_core_read_description (struct gdbarch *gdbarch, return NULL; } - if (cell) - features.cell = true; - if (altivec) features.altivec = true; @@ -1743,287 +1729,6 @@ ppc_stap_parse_special_token (struct gdbarch *gdbarch, return 1; } -/* Cell/B.E. active SPE context tracking support. */ - -static struct objfile *spe_context_objfile = NULL; -static CORE_ADDR spe_context_lm_addr = 0; -static CORE_ADDR spe_context_offset = 0; - -static ptid_t spe_context_cache_ptid; -static CORE_ADDR spe_context_cache_address; - -/* Hook into inferior_created, solib_loaded, and solib_unloaded observers - to track whether we've loaded a version of libspe2 (as static or dynamic - library) that provides the __spe_current_active_context variable. */ -static void -ppc_linux_spe_context_lookup (struct objfile *objfile) -{ - struct bound_minimal_symbol sym; - - if (!objfile) - { - spe_context_objfile = NULL; - spe_context_lm_addr = 0; - spe_context_offset = 0; - spe_context_cache_ptid = minus_one_ptid; - spe_context_cache_address = 0; - return; - } - - sym = lookup_minimal_symbol ("__spe_current_active_context", NULL, objfile); - if (sym.minsym) - { - spe_context_objfile = objfile; - spe_context_lm_addr = svr4_fetch_objfile_link_map (objfile); - spe_context_offset = MSYMBOL_VALUE_RAW_ADDRESS (sym.minsym); - spe_context_cache_ptid = minus_one_ptid; - spe_context_cache_address = 0; - return; - } -} - -static void -ppc_linux_spe_context_inferior_created (struct target_ops *t, int from_tty) -{ - ppc_linux_spe_context_lookup (NULL); - for (objfile *objfile : current_program_space->objfiles ()) - ppc_linux_spe_context_lookup (objfile); -} - -static void -ppc_linux_spe_context_solib_loaded (struct so_list *so) -{ - if (strstr (so->so_original_name, "/libspe") != NULL) - { - solib_read_symbols (so, 0); - ppc_linux_spe_context_lookup (so->objfile); - } -} - -static void -ppc_linux_spe_context_solib_unloaded (struct so_list *so) -{ - if (so->objfile == spe_context_objfile) - ppc_linux_spe_context_lookup (NULL); -} - -/* Retrieve contents of the N'th element in the current thread's - linked SPE context list into ID and NPC. Return the address of - said context element, or 0 if not found. */ -static CORE_ADDR -ppc_linux_spe_context (int wordsize, enum bfd_endian byte_order, - int n, int *id, unsigned int *npc) -{ - CORE_ADDR spe_context = 0; - gdb_byte buf[16]; - int i; - - /* Quick exit if we have not found __spe_current_active_context. */ - if (!spe_context_objfile) - return 0; - - /* Look up cached address of thread-local variable. */ - if (spe_context_cache_ptid != inferior_ptid) - { - struct target_ops *target = current_top_target (); - - try - { - /* We do not call target_translate_tls_address here, because - svr4_fetch_objfile_link_map may invalidate the frame chain, - which must not do while inside a frame sniffer. - - Instead, we have cached the lm_addr value, and use that to - directly call the target's to_get_thread_local_address. */ - spe_context_cache_address - = target->get_thread_local_address (inferior_ptid, - spe_context_lm_addr, - spe_context_offset); - spe_context_cache_ptid = inferior_ptid; - } - - catch (const gdb_exception_error &ex) - { - return 0; - } - } - - /* Read variable value. */ - if (target_read_memory (spe_context_cache_address, buf, wordsize) == 0) - spe_context = extract_unsigned_integer (buf, wordsize, byte_order); - - /* Cyle through to N'th linked list element. */ - for (i = 0; i < n && spe_context; i++) - if (target_read_memory (spe_context + align_up (12, wordsize), - buf, wordsize) == 0) - spe_context = extract_unsigned_integer (buf, wordsize, byte_order); - else - spe_context = 0; - - /* Read current context. */ - if (spe_context - && target_read_memory (spe_context, buf, 12) != 0) - spe_context = 0; - - /* Extract data elements. */ - if (spe_context) - { - if (id) - *id = extract_signed_integer (buf, 4, byte_order); - if (npc) - *npc = extract_unsigned_integer (buf + 4, 4, byte_order); - } - - return spe_context; -} - - -/* Cell/B.E. cross-architecture unwinder support. */ - -struct ppu2spu_cache -{ - struct frame_id frame_id; - readonly_detached_regcache *regcache; -}; - -static struct gdbarch * -ppu2spu_prev_arch (struct frame_info *this_frame, void **this_cache) -{ - struct ppu2spu_cache *cache = (struct ppu2spu_cache *) *this_cache; - return cache->regcache->arch (); -} - -static void -ppu2spu_this_id (struct frame_info *this_frame, - void **this_cache, struct frame_id *this_id) -{ - struct ppu2spu_cache *cache = (struct ppu2spu_cache *) *this_cache; - *this_id = cache->frame_id; -} - -static struct value * -ppu2spu_prev_register (struct frame_info *this_frame, - void **this_cache, int regnum) -{ - struct ppu2spu_cache *cache = (struct ppu2spu_cache *) *this_cache; - struct gdbarch *gdbarch = cache->regcache->arch (); - gdb_byte *buf; - - buf = (gdb_byte *) alloca (register_size (gdbarch, regnum)); - - cache->regcache->cooked_read (regnum, buf); - return frame_unwind_got_bytes (this_frame, regnum, buf); -} - -struct ppu2spu_data -{ - struct gdbarch *gdbarch; - int id; - unsigned int npc; - gdb_byte gprs[128*16]; -}; - -static enum register_status -ppu2spu_unwind_register (ppu2spu_data *data, int regnum, gdb_byte *buf) -{ - enum bfd_endian byte_order = gdbarch_byte_order (data->gdbarch); - - if (regnum >= 0 && regnum < SPU_NUM_GPRS) - memcpy (buf, data->gprs + 16*regnum, 16); - else if (regnum == SPU_ID_REGNUM) - store_unsigned_integer (buf, 4, byte_order, data->id); - else if (regnum == SPU_PC_REGNUM) - store_unsigned_integer (buf, 4, byte_order, data->npc); - else - return REG_UNAVAILABLE; - - return REG_VALID; -} - -static int -ppu2spu_sniffer (const struct frame_unwind *self, - struct frame_info *this_frame, void **this_prologue_cache) -{ - struct gdbarch *gdbarch = get_frame_arch (this_frame); - struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); - enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); - struct ppu2spu_data data; - struct frame_info *fi; - CORE_ADDR base, func, backchain, spe_context; - gdb_byte buf[8]; - int n = 0; - - /* Count the number of SPU contexts already in the frame chain. */ - for (fi = get_next_frame (this_frame); fi; fi = get_next_frame (fi)) - if (get_frame_type (fi) == ARCH_FRAME - && gdbarch_bfd_arch_info (get_frame_arch (fi))->arch == bfd_arch_spu) - n++; - - base = get_frame_sp (this_frame); - func = get_frame_pc (this_frame); - if (target_read_memory (base, buf, tdep->wordsize)) - return 0; - backchain = extract_unsigned_integer (buf, tdep->wordsize, byte_order); - - spe_context = ppc_linux_spe_context (tdep->wordsize, byte_order, - n, &data.id, &data.npc); - if (spe_context && base <= spe_context && spe_context < backchain) - { - char annex[32]; - - /* Find gdbarch for SPU. */ - struct gdbarch_info info; - gdbarch_info_init (&info); - info.bfd_arch_info = bfd_lookup_arch (bfd_arch_spu, bfd_mach_spu); - info.byte_order = BFD_ENDIAN_BIG; - info.osabi = GDB_OSABI_LINUX; - info.id = &data.id; - data.gdbarch = gdbarch_find_by_info (info); - if (!data.gdbarch) - return 0; - - xsnprintf (annex, sizeof annex, "%d/regs", data.id); - if (target_read (current_top_target (), TARGET_OBJECT_SPU, annex, - data.gprs, 0, sizeof data.gprs) - == sizeof data.gprs) - { - auto cooked_read = [&data] (int regnum, gdb_byte *out_buf) - { - return ppu2spu_unwind_register (&data, regnum, out_buf); - }; - struct ppu2spu_cache *cache - = FRAME_OBSTACK_CALLOC (1, struct ppu2spu_cache); - std::unique_ptr<readonly_detached_regcache> regcache - (new readonly_detached_regcache (data.gdbarch, cooked_read)); - - cache->frame_id = frame_id_build (base, func); - cache->regcache = regcache.release (); - *this_prologue_cache = cache; - return 1; - } - } - - return 0; -} - -static void -ppu2spu_dealloc_cache (struct frame_info *self, void *this_cache) -{ - struct ppu2spu_cache *cache = (struct ppu2spu_cache *) this_cache; - delete cache->regcache; -} - -static const struct frame_unwind ppu2spu_unwind = { - ARCH_FRAME, - default_frame_unwind_stop_reason, - ppu2spu_this_id, - ppu2spu_prev_register, - NULL, - ppu2spu_sniffer, - ppu2spu_dealloc_cache, - ppu2spu_prev_arch, -}; - /* Initialize linux_record_tdep if not initialized yet. WORDSIZE is 4 or 8 for 32- or 64-bit PowerPC Linux respectively. Sizes of data structures are initialized accordingly. */ @@ -2439,21 +2144,6 @@ ppc_linux_init_abi (struct gdbarch_info info, } } - /* Enable Cell/B.E. if supported by the target. */ - if (tdesc_compatible_p (info.target_desc, - bfd_lookup_arch (bfd_arch_spu, bfd_mach_spu))) - { - /* Cell/B.E. multi-architecture support. */ - set_spu_solib_ops (gdbarch); - - /* Cell/B.E. cross-architecture unwinder support. */ - frame_unwind_prepend_unwinder (gdbarch, &ppu2spu_unwind); - - /* We need to support more than "addr_bit" significant address bits - in order to support SPUADDR_ADDR encoded values. */ - set_gdbarch_significant_addr_bit (gdbarch, 64); - } - set_gdbarch_displaced_step_location (gdbarch, linux_displaced_step_location); @@ -2478,15 +2168,9 @@ _initialize_ppc_linux_tdep (void) gdbarch_register_osabi (bfd_arch_rs6000, bfd_mach_rs6k, GDB_OSABI_LINUX, ppc_linux_init_abi); - /* Attach to observers to track __spe_current_active_context. */ - gdb::observers::inferior_created.attach (ppc_linux_spe_context_inferior_created); - gdb::observers::solib_loaded.attach (ppc_linux_spe_context_solib_loaded); - gdb::observers::solib_unloaded.attach (ppc_linux_spe_context_solib_unloaded); - /* Initialize the Linux target descriptions. */ initialize_tdesc_powerpc_32l (); initialize_tdesc_powerpc_altivec32l (); - initialize_tdesc_powerpc_cell32l (); initialize_tdesc_powerpc_vsx32l (); initialize_tdesc_powerpc_isa205_32l (); initialize_tdesc_powerpc_isa205_altivec32l (); @@ -2496,7 +2180,6 @@ _initialize_ppc_linux_tdep (void) initialize_tdesc_powerpc_isa207_htm_vsx32l (); initialize_tdesc_powerpc_64l (); initialize_tdesc_powerpc_altivec64l (); - initialize_tdesc_powerpc_cell64l (); initialize_tdesc_powerpc_vsx64l (); initialize_tdesc_powerpc_isa205_64l (); initialize_tdesc_powerpc_isa205_altivec64l (); |