diff options
Diffstat (limited to 'gdb/frv-tdep.c')
-rw-r--r-- | gdb/frv-tdep.c | 113 |
1 files changed, 0 insertions, 113 deletions
diff --git a/gdb/frv-tdep.c b/gdb/frv-tdep.c index f9f27dc..b1b5cd0 100644 --- a/gdb/frv-tdep.c +++ b/gdb/frv-tdep.c @@ -96,11 +96,6 @@ struct gdbarch_tdep /* Register names. */ char **register_names; - - /* Given NEXT_FRAME, determine the address of register REGNO saved in - the calling sigtramp frame. */ - CORE_ADDR (*sigcontext_reg_addr) (struct frame_info *next_frame, int regno, - CORE_ADDR *); }; #define CURRENT_VARIANT (gdbarch_tdep (current_gdbarch)) @@ -112,15 +107,6 @@ frv_abi (struct gdbarch *gdbarch) return gdbarch_tdep (gdbarch)->frv_abi; } -/* Set sigcontext_reg_addr. */ -void -frv_set_sigcontext_reg_addr (struct gdbarch *gdbarch, - CORE_ADDR (*sigcontext_reg_addr) - (struct frame_info *, int, CORE_ADDR *)) -{ - gdbarch_tdep (gdbarch)->sigcontext_reg_addr = sigcontext_reg_addr; -} - /* Fetch the interpreter and executable loadmap addresses (for shared library support) for the FDPIC ABI. Return 0 if successful, -1 if not. (E.g, -1 will be returned if the ABI isn't the FDPIC ABI.) */ @@ -1432,102 +1418,6 @@ frv_unwind_dummy_id (struct gdbarch *gdbarch, struct frame_info *next_frame) frame_pc_unwind (next_frame)); } -/* Signal trampolines. */ - -static struct frv_unwind_cache * -frv_sigtramp_frame_cache (struct frame_info *next_frame, void **this_cache) -{ - struct frv_unwind_cache *cache; - struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch); - CORE_ADDR addr; - char buf[4]; - int regno; - CORE_ADDR sc_addr_cache_val = 0; - - if (*this_cache) - return *this_cache; - - cache = FRAME_OBSTACK_ZALLOC (struct frv_unwind_cache); - cache->saved_regs = trad_frame_alloc_saved_regs (next_frame); - - frame_unwind_register (next_frame, sp_regnum, buf); - cache->base = extract_unsigned_integer (buf, sizeof buf); - - for (regno = 0; regno < frv_num_regs; regno++) - { - cache->saved_regs[regno].addr - = tdep->sigcontext_reg_addr (next_frame, regno, &sc_addr_cache_val); - } - - - if (cache->saved_regs[sp_regnum].addr != -1 - && target_read_memory (cache->saved_regs[sp_regnum].addr, - buf, sizeof buf) == 0) - { - cache->prev_sp = extract_unsigned_integer (buf, sizeof buf); - - /* Now that we've bothered to read it out of memory, save the - prev frame's SP value in the cache. */ - trad_frame_set_value (cache->saved_regs, sp_regnum, cache->prev_sp); - } - else - { - warning ("Can't read SP value from sigtramp frame"); - } - - *this_cache = cache; - return cache; -} - -static void -frv_sigtramp_frame_this_id (struct frame_info *next_frame, void **this_cache, - struct frame_id *this_id) -{ - struct frv_unwind_cache *cache = - frv_sigtramp_frame_cache (next_frame, this_cache); - - (*this_id) = frame_id_build (cache->base, frame_pc_unwind (next_frame)); -} - -static void -frv_sigtramp_frame_prev_register (struct frame_info *next_frame, - void **this_cache, - int regnum, int *optimizedp, - enum lval_type *lvalp, CORE_ADDR *addrp, - int *realnump, void *valuep) -{ - /* Make sure we've initialized the cache. */ - frv_sigtramp_frame_cache (next_frame, this_cache); - - frv_frame_prev_register (next_frame, this_cache, regnum, - optimizedp, lvalp, addrp, realnump, valuep); -} - -static const struct frame_unwind frv_sigtramp_frame_unwind = -{ - SIGTRAMP_FRAME, - frv_sigtramp_frame_this_id, - frv_sigtramp_frame_prev_register -}; - -static const struct frame_unwind * -frv_sigtramp_frame_sniffer (struct frame_info *next_frame) -{ - CORE_ADDR pc = frame_pc_unwind (next_frame); - char *name; - - /* We shouldn't even bother to try if the OSABI didn't register - a sigcontext_reg_addr handler. */ - if (!gdbarch_tdep (current_gdbarch)->sigcontext_reg_addr) - return NULL; - - find_pc_partial_function (pc, &name, NULL, NULL); - if (DEPRECATED_PC_IN_SIGTRAMP (pc, name)) - return &frv_sigtramp_frame_unwind; - - return NULL; -} - static struct gdbarch * frv_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) { @@ -1667,9 +1557,6 @@ frv_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) /* Hook in ABI-specific overrides, if they have been registered. */ gdbarch_init_osabi (info, gdbarch); - /* Set the sigtramp frame sniffer. */ - frame_unwind_append_sniffer (gdbarch, frv_sigtramp_frame_sniffer); - /* Set the fallback (prologue based) frame sniffer. */ frame_unwind_append_sniffer (gdbarch, frv_frame_sniffer); |