* sparcnbsd-tdep.c, sparcobsd-tdep.c: Update for unwinder changes.
This commit is contained in:
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76b233ddaa
commit
7ea566bee7
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@ -1,3 +1,7 @@
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2008-05-29 Mark Kettenis <kettenis@gnu.org>
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* sparcnbsd-tdep.c, sparcobsd-tdep.c: Update for unwinder changes.
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2008-05-28 Joel Brobecker <brobecker@adacore.com>
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* ia64-tdep.c (ia64_convert_from_func_ptr_addr): Improve the heuristic
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@ -97,18 +97,18 @@ sparc32nbsd_pc_in_sigtramp (CORE_ADDR pc, char *name)
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}
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struct trad_frame_saved_reg *
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sparc32nbsd_sigcontext_saved_regs (struct frame_info *next_frame)
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sparc32nbsd_sigcontext_saved_regs (struct frame_info *this_frame)
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{
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struct trad_frame_saved_reg *saved_regs;
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CORE_ADDR addr, sigcontext_addr;
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int regnum, delta;
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ULONGEST psr;
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saved_regs = trad_frame_alloc_saved_regs (next_frame);
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saved_regs = trad_frame_alloc_saved_regs (this_frame);
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/* We find the appropriate instance of `struct sigcontext' at a
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fixed offset in the signal frame. */
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addr = frame_unwind_register_unsigned (next_frame, SPARC_FP_REGNUM);
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addr = get_frame_register_unsigned (this_frame, SPARC_FP_REGNUM);
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sigcontext_addr = addr + 64 + 16;
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/* The registers are saved in bits and pieces scattered all over the
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@ -140,7 +140,7 @@ sparc32nbsd_sigcontext_saved_regs (struct frame_info *next_frame)
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/* The `local' and `in' registers have been saved in the register
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save area. */
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addr = saved_regs[SPARC_SP_REGNUM].addr;
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addr = get_frame_memory_unsigned (next_frame, addr, 4);
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addr = get_frame_memory_unsigned (this_frame, addr, 4);
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for (regnum = SPARC_L0_REGNUM;
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regnum <= SPARC_I7_REGNUM; regnum++, addr += 4)
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saved_regs[regnum].addr = addr;
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@ -154,7 +154,7 @@ sparc32nbsd_sigcontext_saved_regs (struct frame_info *next_frame)
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ULONGEST i7;
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addr = saved_regs[SPARC_I7_REGNUM].addr;
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i7 = get_frame_memory_unsigned (next_frame, addr, 4);
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i7 = get_frame_memory_unsigned (this_frame, addr, 4);
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trad_frame_set_value (saved_regs, SPARC_I7_REGNUM, i7 ^ wcookie);
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}
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}
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@ -165,12 +165,12 @@ sparc32nbsd_sigcontext_saved_regs (struct frame_info *next_frame)
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#define PSR_EF 0x00001000
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addr = saved_regs[SPARC32_PSR_REGNUM].addr;
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psr = get_frame_memory_unsigned (next_frame, addr, 4);
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psr = get_frame_memory_unsigned (this_frame, addr, 4);
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if (psr & PSR_EF)
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{
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CORE_ADDR sp;
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sp = frame_unwind_register_unsigned (next_frame, SPARC_SP_REGNUM);
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sp = get_frame_register_unsigned (this_frame, SPARC_SP_REGNUM);
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saved_regs[SPARC32_FSR_REGNUM].addr = sp + 96;
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for (regnum = SPARC_F0_REGNUM, addr = sp + 96 + 8;
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regnum <= SPARC_F31_REGNUM; regnum++, addr += 4)
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@ -181,7 +181,7 @@ sparc32nbsd_sigcontext_saved_regs (struct frame_info *next_frame)
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}
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static struct sparc_frame_cache *
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sparc32nbsd_sigcontext_frame_cache (struct frame_info *next_frame,
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sparc32nbsd_sigcontext_frame_cache (struct frame_info *this_frame,
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void **this_cache)
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{
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struct sparc_frame_cache *cache;
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@ -190,7 +190,7 @@ sparc32nbsd_sigcontext_frame_cache (struct frame_info *next_frame,
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if (*this_cache)
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return *this_cache;
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cache = sparc_frame_cache (next_frame, this_cache);
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cache = sparc_frame_cache (this_frame, this_cache);
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gdb_assert (cache == *this_cache);
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/* If we couldn't find the frame's function, we're probably dealing
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@ -202,63 +202,62 @@ sparc32nbsd_sigcontext_frame_cache (struct frame_info *next_frame,
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/* Since we couldn't find the frame's function, the cache was
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initialized under the assumption that we're frameless. */
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cache->frameless_p = 0;
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addr = frame_unwind_register_unsigned (next_frame, SPARC_FP_REGNUM);
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addr = get_frame_register_unsigned (this_frame, SPARC_FP_REGNUM);
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cache->base = addr;
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}
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cache->saved_regs = sparc32nbsd_sigcontext_saved_regs (next_frame);
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cache->saved_regs = sparc32nbsd_sigcontext_saved_regs (this_frame);
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return cache;
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}
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static void
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sparc32nbsd_sigcontext_frame_this_id (struct frame_info *next_frame,
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sparc32nbsd_sigcontext_frame_this_id (struct frame_info *this_frame,
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void **this_cache,
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struct frame_id *this_id)
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{
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struct sparc_frame_cache *cache =
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sparc32nbsd_sigcontext_frame_cache (next_frame, this_cache);
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sparc32nbsd_sigcontext_frame_cache (this_frame, this_cache);
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(*this_id) = frame_id_build (cache->base, cache->pc);
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}
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static void
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sparc32nbsd_sigcontext_frame_prev_register (struct frame_info *next_frame,
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void **this_cache,
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int regnum, int *optimizedp,
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enum lval_type *lvalp,
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CORE_ADDR *addrp,
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int *realnump, gdb_byte *valuep)
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static struct value *
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sparc32nbsd_sigcontext_frame_prev_register (struct frame_info *this_frame,
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void **this_cache, int regnum)
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{
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struct sparc_frame_cache *cache =
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sparc32nbsd_sigcontext_frame_cache (next_frame, this_cache);
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sparc32nbsd_sigcontext_frame_cache (this_frame, this_cache);
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trad_frame_get_prev_register (next_frame, cache->saved_regs, regnum,
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optimizedp, lvalp, addrp, realnump, valuep);
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return trad_frame_get_prev_register (this_frame, cache->saved_regs, regnum);
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}
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static const struct frame_unwind sparc32nbsd_sigcontext_frame_unwind =
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static int
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sparc32nbsd_sigcontext_frame_sniffer (const struct frame_unwind *self,
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struct frame_info *this_frame,
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void **this_cache)
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{
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SIGTRAMP_FRAME,
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sparc32nbsd_sigcontext_frame_this_id,
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sparc32nbsd_sigcontext_frame_prev_register
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};
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static const struct frame_unwind *
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sparc32nbsd_sigtramp_frame_sniffer (struct frame_info *next_frame)
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{
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CORE_ADDR pc = frame_pc_unwind (next_frame);
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CORE_ADDR pc = get_frame_pc (this_frame);
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char *name;
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find_pc_partial_function (pc, &name, NULL, NULL);
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if (sparc32nbsd_pc_in_sigtramp (pc, name))
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{
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if (name == NULL || strncmp (name, "__sigtramp_sigcontext", 21))
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return &sparc32nbsd_sigcontext_frame_unwind;
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return 1;
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}
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return NULL;
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return 0;
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}
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static const struct frame_unwind sparc32nbsd_sigcontext_frame_unwind =
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{
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SIGTRAMP_FRAME,
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sparc32nbsd_sigcontext_frame_this_id,
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sparc32nbsd_sigcontext_frame_prev_register,
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NULL,
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sparc32nbsd_sigcontext_frame_sniffer
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};
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/* Return the address of a system call's alternative return
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address. */
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@ -300,7 +299,7 @@ sparc32nbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
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/* Make sure we can single-step "new" syscalls. */
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tdep->step_trap = sparcnbsd_step_trap;
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frame_unwind_append_sniffer (gdbarch, sparc32nbsd_sigtramp_frame_sniffer);
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frame_unwind_append_unwinder (gdbarch, &sparc32nbsd_sigcontext_frame_unwind);
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}
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static void
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@ -69,7 +69,8 @@ sparc32obsd_pc_in_sigtramp (CORE_ADDR pc, char *name)
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}
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static struct sparc_frame_cache *
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sparc32obsd_frame_cache (struct frame_info *next_frame, void **this_cache)
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sparc32obsd_sigtramp_frame_cache (struct frame_info *this_frame,
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void **this_cache)
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{
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struct sparc_frame_cache *cache;
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CORE_ADDR addr;
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if (*this_cache)
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return *this_cache;
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cache = sparc_frame_cache (next_frame, this_cache);
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cache = sparc_frame_cache (this_frame, this_cache);
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gdb_assert (cache == *this_cache);
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/* If we couldn't find the frame's function, we're probably dealing
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with an on-stack signal trampoline. */
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if (cache->pc == 0)
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{
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cache->pc = frame_pc_unwind (next_frame);
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cache->pc = get_frame_pc (this_frame);
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cache->pc &= ~(sparc32obsd_page_size - 1);
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/* Since we couldn't find the frame's function, the cache was
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initialized under the assumption that we're frameless. */
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cache->frameless_p = 0;
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addr = frame_unwind_register_unsigned (next_frame, SPARC_FP_REGNUM);
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addr = get_frame_register_unsigned (this_frame, SPARC_FP_REGNUM);
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cache->base = addr;
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}
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cache->saved_regs = sparc32nbsd_sigcontext_saved_regs (next_frame);
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cache->saved_regs = sparc32nbsd_sigcontext_saved_regs (this_frame);
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return cache;
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}
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static void
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sparc32obsd_frame_this_id (struct frame_info *next_frame, void **this_cache,
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struct frame_id *this_id)
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sparc32obsd_sigtramp_frame_this_id (struct frame_info *this_frame,
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void **this_cache,
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struct frame_id *this_id)
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{
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struct sparc_frame_cache *cache =
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sparc32obsd_frame_cache (next_frame, this_cache);
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sparc32obsd_sigtramp_frame_cache (this_frame, this_cache);
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(*this_id) = frame_id_build (cache->base, cache->pc);
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}
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static void
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sparc32obsd_frame_prev_register (struct frame_info *next_frame,
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void **this_cache,
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int regnum, int *optimizedp,
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enum lval_type *lvalp, CORE_ADDR *addrp,
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int *realnump, gdb_byte *valuep)
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static struct value *
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sparc32obsd_sigtramp_frame_prev_register (struct frame_info *this_frame,
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void **this_cache, int regnum)
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{
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struct sparc_frame_cache *cache =
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sparc32obsd_frame_cache (next_frame, this_cache);
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sparc32obsd_sigtramp_frame_cache (this_frame, this_cache);
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trad_frame_get_prev_register (next_frame, cache->saved_regs, regnum,
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optimizedp, lvalp, addrp, realnump, valuep);
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return trad_frame_get_prev_register (this_frame, cache->saved_regs, regnum);
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}
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static const struct frame_unwind sparc32obsd_frame_unwind =
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static int
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sparc32obsd_sigtramp_frame_sniffer (const struct frame_unwind *self,
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struct frame_info *this_frame,
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void **this_cache)
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{
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SIGTRAMP_FRAME,
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sparc32obsd_frame_this_id,
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sparc32obsd_frame_prev_register
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};
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static const struct frame_unwind *
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sparc32obsd_sigtramp_frame_sniffer (struct frame_info *next_frame)
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{
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CORE_ADDR pc = frame_pc_unwind (next_frame);
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CORE_ADDR pc = get_frame_pc (this_frame);
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char *name;
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find_pc_partial_function (pc, &name, NULL, NULL);
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if (sparc32obsd_pc_in_sigtramp (pc, name))
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return &sparc32obsd_frame_unwind;
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return 1;
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return NULL;
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return 0;
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}
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static const struct frame_unwind sparc32obsd_sigtramp_frame_unwind =
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{
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SIGTRAMP_FRAME,
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sparc32obsd_sigtramp_frame_this_id,
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sparc32obsd_sigtramp_frame_prev_register,
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NULL,
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sparc32obsd_sigtramp_frame_sniffer
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};
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/* Offset wthin the thread structure where we can find %fp and %i7. */
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set_gdbarch_skip_solib_resolver (gdbarch, obsd_skip_solib_resolver);
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frame_unwind_append_sniffer (gdbarch, sparc32obsd_sigtramp_frame_sniffer);
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frame_unwind_append_unwinder (gdbarch, &sparc32obsd_sigtramp_frame_unwind);
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/* OpenBSD provides a user-level threads implementation. */
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bsd_uthread_set_supply_uthread (gdbarch, sparc32obsd_supply_uthread);
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