2004-11-03 Randolph Chung <tausq@debian.org>
* hppa-tdep.c (hppa_frame_cache): Use frame_pc_unwind instead of frame_func_unwind to locate the unwind entry. (hppa_frame_this_id): Likewise.
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@ -1,3 +1,9 @@
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2004-11-03 Randolph Chung <tausq@debian.org>
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* hppa-tdep.c (hppa_frame_cache): Use frame_pc_unwind instead of
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frame_func_unwind to locate the unwind entry.
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(hppa_frame_this_id): Likewise.
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2004-11-03 Andrew Cagney <cagney@gnu.org>
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* gdb/NEWS: Mention internationalization, m32r-*-linux-gnu, 'p'
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@ -1580,7 +1580,7 @@ hppa_frame_cache (struct frame_info *next_frame, void **this_cache)
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cache->saved_regs = trad_frame_alloc_saved_regs (next_frame);
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/* Yow! */
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u = find_unwind_entry (frame_func_unwind (next_frame));
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u = find_unwind_entry (frame_pc_unwind (next_frame));
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if (!u)
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{
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if (hppa_debug)
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@ -1630,7 +1630,13 @@ hppa_frame_cache (struct frame_info *next_frame, void **this_cache)
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symbol information. hppa_skip_prologue also bounds the returned
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pc by the passed in pc, so it will not return a pc in the next
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function. */
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prologue_end = hppa_skip_prologue (frame_func_unwind (next_frame));
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/* We used to use frame_func_unwind () to locate the beginning of the
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function to pass to skip_prologue (). However, when objects are
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compiled without debug symbols, frame_func_unwind can return the wrong
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function (or 0). We can do better than that by using unwind records. */
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prologue_end = hppa_skip_prologue (u->region_start);
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end_pc = frame_pc_unwind (next_frame);
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if (prologue_end != 0 && end_pc > prologue_end)
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@ -1638,7 +1644,7 @@ hppa_frame_cache (struct frame_info *next_frame, void **this_cache)
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frame_size = 0;
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for (pc = frame_func_unwind (next_frame);
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for (pc = u->region_start;
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((saved_gr_mask || saved_fr_mask
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|| looking_for_sp || looking_for_rp
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|| frame_size < (u->Total_frame_size << 3))
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@ -1881,8 +1887,14 @@ static void
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hppa_frame_this_id (struct frame_info *next_frame, void **this_cache,
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struct frame_id *this_id)
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{
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struct hppa_frame_cache *info = hppa_frame_cache (next_frame, this_cache);
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(*this_id) = frame_id_build (info->base, frame_func_unwind (next_frame));
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struct hppa_frame_cache *info;
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CORE_ADDR pc = frame_pc_unwind (next_frame);
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struct unwind_table_entry *u;
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info = hppa_frame_cache (next_frame, this_cache);
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u = find_unwind_entry (pc);
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(*this_id) = frame_id_build (info->base, u->region_start);
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}
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static void
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@ -1928,8 +1940,13 @@ hppa_fallback_frame_cache (struct frame_info *next_frame, void **this_cache)
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{
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struct hppa_frame_cache *cache;
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unsigned int frame_size;
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int found_rp;
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CORE_ADDR pc, start_pc, end_pc, cur_pc;
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if (hppa_debug)
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fprintf_unfiltered (gdb_stdlog, "{ hppa_fallback_frame_cache (frame=%d)-> ",
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frame_relative_level(next_frame));
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cache = FRAME_OBSTACK_ZALLOC (struct hppa_frame_cache);
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(*this_cache) = cache;
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cache->saved_regs = trad_frame_alloc_saved_regs (next_frame);
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@ -1937,6 +1954,7 @@ hppa_fallback_frame_cache (struct frame_info *next_frame, void **this_cache)
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pc = frame_func_unwind (next_frame);
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cur_pc = frame_pc_unwind (next_frame);
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frame_size = 0;
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found_rp = 0;
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find_pc_partial_function (pc, NULL, &start_pc, &end_pc);
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@ -1961,11 +1979,21 @@ hppa_fallback_frame_cache (struct frame_info *next_frame, void **this_cache)
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/* There are limited ways to store the return pointer into the
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stack. */
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if (insn == 0x6bc23fd9) /* stw rp,-0x14(sr0,sp) */
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cache->saved_regs[HPPA_RP_REGNUM].addr = -20;
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{
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cache->saved_regs[HPPA_RP_REGNUM].addr = -20;
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found_rp = 1;
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}
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else if (insn == 0x0fc212c1) /* std rp,-0x10(sr0,sp) */
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cache->saved_regs[HPPA_RP_REGNUM].addr = -16;
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{
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cache->saved_regs[HPPA_RP_REGNUM].addr = -16;
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found_rp = 1;
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}
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}
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if (hppa_debug)
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fprintf_unfiltered (gdb_stdlog, " frame_size = %d, found_rp = %d }\n",
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frame_size, found_rp);
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cache->base = frame_unwind_register_unsigned (next_frame, HPPA_SP_REGNUM) - frame_size;
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trad_frame_set_value (cache->saved_regs, HPPA_SP_REGNUM, cache->base);
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@ -2157,9 +2185,11 @@ unwind_command (char *exp, int from_tty)
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printf_unfiltered ("\tregion_start = ");
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print_address (u->region_start, gdb_stdout);
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gdb_flush (gdb_stdout);
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printf_unfiltered ("\n\tregion_end = ");
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print_address (u->region_end, gdb_stdout);
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gdb_flush (gdb_stdout);
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#define pif(FLD) if (u->FLD) printf_unfiltered (" "#FLD);
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