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* alpha-mdebug-tdep.c (alpha_mdebug_frame_p): Reject prologues.

Browse Source 
(alpha_mdebug_frame_unwind_cache): Don't call the heuristic unwinder.
        (alpha_mdebug_frame_this_id): Likewise.
        (alpha_mdebug_frame_prev_register): Likewise.
        (alpha_mdebug_frame_base_address): Likewise.
        (alpha_mdebug_frame_locals_address): Likewise.
        (alpha_mdebug_frame_args_address): Likewise.
        (struct alpha_mdebug_unwind_cache): Remove in_prologue_cache.
        * alpha-tdep.c (alpha_heuristic_proc_start): Use get_pc_function_start.
        (alpha_heuristic_frame_unwind_cache): Make static; add missing
        loop increment.
        (alpha_heuristic_frame_this_id): Make static.
        (alpha_heuristic_frame_prev_register): Likewise.
        (alpha_heuristic_frame_base_address): Likewise.
        * alpha-tdep.h: Update.
This commit is contained in:
Richard Henderson 2003-05-31 00:27:46 +00:00
parent 86f1d0fbb5
commit fbe586aede
4 changed files with 85 additions and 110 deletions
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100
gdb/ChangeLog
View File

@ -1,3 +1,21 @@
2003-05-30 Richard Henderson <rth@redhat.com>
* alpha-mdebug-tdep.c (alpha_mdebug_frame_p): Reject prologues.
(alpha_mdebug_frame_unwind_cache): Don't call the heuristic unwinder.
(alpha_mdebug_frame_this_id): Likewise.
(alpha_mdebug_frame_prev_register): Likewise.
(alpha_mdebug_frame_base_address): Likewise.
(alpha_mdebug_frame_locals_address): Likewise.
(alpha_mdebug_frame_args_address): Likewise.
(struct alpha_mdebug_unwind_cache): Remove in_prologue_cache.
* alpha-tdep.c (alpha_heuristic_proc_start): Use get_pc_function_start.
(alpha_heuristic_frame_unwind_cache): Make static; add missing
loop increment.
(alpha_heuristic_frame_this_id): Make static.
(alpha_heuristic_frame_prev_register): Likewise.
(alpha_heuristic_frame_base_address): Likewise.
* alpha-tdep.h: Update.
2003-05-30 Mark Kettenis <kettenis@gnu.org>
* i386-tdep.h (i386bsd_sigcontext_addr): Remove prototype.
@ -674,10 +692,10 @@
2003-05-15 David Carlton <carlton@bactrian.org>
Committed by Elena Zannoni <ezannoni@redhat.com>
* symtab.c (lookup_symbol_aux): Delete calls to
lookup_symbol_aux_minsyms.
(lookup_symbol_aux_minsyms): Comment out function and
prototype. Delete lookup by mangled name.
* symtab.c (lookup_symbol_aux): Delete calls to
lookup_symbol_aux_minsyms.
(lookup_symbol_aux_minsyms): Comment out function and
prototype. Delete lookup by mangled name.
2003-05-14 Kevin Buettner <kevinb@redhat.com>
@ -1543,7 +1561,7 @@
2003-04-18 Jim Blandy <jimb@redhat.com>
* s390-tdep.c (s390_frame_align): New function.
(s390_gdbarch_init): Register it with the gdbarch object.
(s390_gdbarch_init): Register it with the gdbarch object.
2003-04-17 Richard Henderson <rth@redhat.com>
@ -1558,7 +1576,7 @@
2003-04-17 Elena Zannoni <ezannoni@redhat.com>
* values.c (value_being_returned): Don't fetch the return
value if the return type is void.
value if the return type is void.
2003-04-17 Jeff Johnston <jjohnstn@redhat.com>
@ -2083,7 +2101,7 @@
2003-04-08 Elena Zannoni <ezannoni@redhat.com>
* infrun.c (stop_soon): Rename from stop_soon_quietly.
* infrun.c (stop_soon): Rename from stop_soon_quietly.
(struct inferior_status): Rename stop_soon_quietly field to stop_soon.
(clear_proceed_status): Rename stop_soon_quietly to stop_soon.
(start_remote): Ditto.
@ -2092,7 +2110,7 @@
(restore_inferior_status): Ditto.
* infcmd.c (attach_command): Ditto.
* fork-child.c (startup_inferior): Ditto.
* inferior.h (stop_soon): Rename from stop_soon_quietly.
* inferior.h (stop_soon): Rename from stop_soon_quietly.
* alpha-tdep.c (heuristic_proc_start): Ditto.
* mips-tdep.c (heuristic_proc_start): Ditto.
* solib-svr4.c (svr4_solib_create_inferior_hook): Ditto.
@ -2126,11 +2144,11 @@
2003-04-07 Elena Zannoni <ezannoni@redhat.com>
* disasm.c (dump_insns): Move variables inside loop, or they will
be freed more than once, causing wild memory corruptions.
be freed more than once, causing wild memory corruptions.
(gdb_disassembly): Look for the substring "-thread",
instead of "-threads" in the target name, to make sure to find
the 'multi-thread' target. Also, make sure we do the right thing
with the "core" target.
instead of "-threads" in the target name, to make sure to find
the 'multi-thread' target. Also, make sure we do the right thing
with the "core" target.
2003-04-07 Kevin Buettner <kevinb@redhat.com>
@ -2291,9 +2309,9 @@
2003-04-04 Elena Zannoni <ezannoni@redhat.com>
* x86-64-tdep.c (x86_64_push_arguments): Handle correctly the
signed integer case.
(classify_argument): Handle enumerations and references.
* x86-64-tdep.c (x86_64_push_arguments): Handle correctly the
signed integer case.
(classify_argument): Handle enumerations and references.
2003-04-04 Andrew Cagney <cagney@redhat.com>
@ -2331,15 +2349,15 @@
* language.c (language_demangle): New function.
(unk_lang_demangle): Likewise.
(unknown_language_defn, auto_language_defn, local_language_defn):
Add ukn_lang_demangle.
Add ukn_lang_demangle.
* ada-lang.c (ada_language_defn): Add NULL for la_demangle element.
* f-lang.c, m2-lang.c, p-lang.c, scm-lang.c: Likewise.
* f-lang.c, m2-lang.c, p-lang.c, scm-lang.c: Likewise.
* c-lang.c (c_language_defn, asm_language_defn): Likewise.
(cplus_language_defn): Add cplus_demangle for la_demangle element.
* jv-lang.c (java_demangle): New function
(java_language_defn): Use it for la_demangle element.
* objc-lang.c (objc_demangle): Add options argument
(objc_language_defn): Use objc_demangle for la_demangle element.
* objc-lang.c (objc_demangle): Add options argument
(objc_language_defn): Use objc_demangle for la_demangle element.
* maint.c (maintenance_demangle): Replace switch with
call to language_demangle.
* utils.c (fprintf_symbol_filtered): Likewise.
@ -2573,7 +2591,7 @@
2003-03-30 Andrew Cagney <cagney@redhat.com>
2002-11-10 Klee Dienes <kdienes@apple.com>
* value.h (struct value): Update comment.
* value.h (struct value): Update comment.
2003-03-30 Andrew Cagney <cagney@redhat.com>
@ -2732,7 +2750,7 @@
2003-03-28 Bob Rossi <bob_rossi@cox.net>
* MAINTAINERS (write after approval): Add myself.
* MAINTAINERS (write after approval): Add myself.
2003-03-27 Theodore A. Roth <troth@openavr.org>
@ -3361,12 +3379,12 @@
2003-03-13 D. Venkatasubramanian <dvenkat@noida.hcltech.com>
* MAINTAINERS (write after approval): Alphabetically
* MAINTAINERS (write after approval): Alphabetically
listing corrected.
2003-03-13 D. Venkatasubramanian <dvenkat@noida.hcltech.com>
* MAINTAINERS (write after approval): Add myself.
* MAINTAINERS (write after approval): Add myself.
2003-03-12 Andrew Cagney <cagney@redhat.com>
@ -4288,7 +4306,7 @@
2003-02-20 Adam Fedor <fedor@gnu.org>
* objc-lang.h (find_methods): Remove declaration.
* objc-lang.c (find_methods): Make static.
* objc-lang.c (find_methods): Make static.
2003-02-20 Christopher Faylor <cgf@redhat.com>
@ -4484,10 +4502,10 @@
2003-02-18 Elena Zannoni <ezannoni@redhat.com>
From Jim Ingham <jingham@apple.com>:
* dbxread.c (process_one_symbol): Use last_function_start rather
than function_start_offset to find the real beginning of the
current function. The latter is just the text section offset on
some systems, the former is always the real function start.
* dbxread.c (process_one_symbol): Use last_function_start rather
than function_start_offset to find the real beginning of the
current function. The latter is just the text section offset on
some systems, the former is always the real function start.
2003-02-17 Andrew Cagney <cagney@redhat.com>
@ -4502,7 +4520,7 @@
2003-02-14 Elena Zannoni <ezannoni@redhat.com>
From Brian Ford <ford@vss.fsi.com>
From Brian Ford <ford@vss.fsi.com>
* cli/cli-decode.c (lookup_cmd_composition) [TUI]: Properly
conditionalize tui_active test.
@ -4540,8 +4558,8 @@
2003-02-12 Jason Molenda (jmolenda@apple.com)
* symmisc.c (print_objfile_statistics): Include information about
the number of psymtabs and symtabs in each object file.
* symmisc.c (print_objfile_statistics): Include information about
the number of psymtabs and symtabs in each object file.
2003-02-13 Keith R Seitz <keiths@redhat.com>
@ -4665,9 +4683,9 @@
(threads_continue_all_with_signals): Ditto.
2003-02-05 Jim Ingham <jingham@apple.com>
Keith Seitz <keiths@redhat.com>
Elena Zannoni <ezannoni@redhat.com>
Andrew Cagney <ac131313@redhat.com>
Keith Seitz <keiths@redhat.com>
Elena Zannoni <ezannoni@redhat.com>
Andrew Cagney <ac131313@redhat.com>
* Makefile.in (SUBDIR_CLI_OBS): Add "cli-interp.o".
(SUBDIR_CLI_SRCS): Add "cli/cli-interp.c".
@ -4926,11 +4944,11 @@
From Kevin Buettner <kevinb@redhat.com>:
* ui-out.h (make_cleanup_ui_out_table_begin_end): New function.
* ui-out.c (make_cleanup_ui_out_table_begin_end)
(do_cleanup_table_end): New functions.
* breakpoint.c (print_it_typical, print_one_breakpoint, mention):
Use cleanups to invoke_ui_out_tuple_end().
(breakpoint_1): Use cleanup to invoke ui_out_table_end().
* ui-out.c (make_cleanup_ui_out_table_begin_end)
(do_cleanup_table_end): New functions.
* breakpoint.c (print_it_typical, print_one_breakpoint, mention):
Use cleanups to invoke_ui_out_tuple_end().
(breakpoint_1): Use cleanup to invoke ui_out_table_end().
* cli/cli-setshow.c (cmd_show_list): Use
make_cleanup_ui_out_tuple_begin_end.
@ -4967,8 +4985,8 @@
2003-02-01 Andrew Cagney <ac131313@redhat.com>
From 2002-11-09 Jason Molenda (jason-cl@molenda.com)
* stack.c (print_frame_info_base): Output complete FRAME tuple
for synthesized frames.
* stack.c (print_frame_info_base): Output complete FRAME tuple
for synthesized frames.
2003-02-02 Andrew Cagney <ac131313@redhat.com>

62
gdb/alpha-mdebug-tdep.c
View File

@ -174,7 +174,6 @@ struct alpha_mdebug_unwind_cache
alpha_extra_func_info_t proc_desc;
CORE_ADDR vfp;
CORE_ADDR *saved_regs;
void *in_prologue_cache;
};
/* Extract all of the information about the frame from PROC_DESC
@ -205,21 +204,6 @@ alpha_mdebug_frame_unwind_cache (struct frame_info *next_frame,
info->proc_desc = proc_desc;
gdb_assert (proc_desc != NULL);
/* If we're in the prologue, the PDR for this frame is not yet valid. */
/* ??? We could have said "no" in alpha_mdebug_frame_p, and we'd
walk down the list of unwinders and try the heuristic unwinder
and things would have been fine. However, since we have the PDR,
we know how to skip the search for the start of the procedure,
and all the uncertainty involved there. So instead, arrange for
us to defer to the heuristic unwinder directly. */
if (alpha_mdebug_in_prologue (pc, proc_desc))
{
alpha_heuristic_frame_unwind_cache (next_frame,
&info->in_prologue_cache,
PROC_LOW_ADDR (proc_desc));
return info;
}
info->saved_regs = frame_obstack_zalloc (SIZEOF_FRAME_SAVED_REGS);
/* The VFP of the frame is at FRAME_REG+FRAME_OFFSET. */
@ -275,12 +259,7 @@ alpha_mdebug_frame_this_id (struct frame_info *next_frame,
struct alpha_mdebug_unwind_cache *info
= alpha_mdebug_frame_unwind_cache (next_frame, this_prologue_cache);
/* If we're in the prologue, defer to the heuristic unwinder. */
if (info->in_prologue_cache)
alpha_heuristic_frame_this_id (next_frame, &info->in_prologue_cache,
this_id);
else
*this_id = frame_id_build (info->vfp, frame_func_unwind (next_frame));
*this_id = frame_id_build (info->vfp, frame_func_unwind (next_frame));
}
/* Retrieve the value of REGNUM in FRAME. Don't give up! */
@ -295,16 +274,6 @@ alpha_mdebug_frame_prev_register (struct frame_info *next_frame,
struct alpha_mdebug_unwind_cache *info
= alpha_mdebug_frame_unwind_cache (next_frame, this_prologue_cache);
/* If we're in the prologue, defer to the heuristic unwinder. */
if (info->in_prologue_cache)
{
alpha_heuristic_frame_prev_register (next_frame,
&info->in_prologue_cache,
regnum, optimizedp, lvalp,
addrp, realnump, bufferp);
return;
}
/* The PC of the previous frame is stored in the link register of
the current frame. Frob regnum so that we pull the value from
the correct place. */
@ -359,6 +328,11 @@ alpha_mdebug_frame_p (CORE_ADDR pc)
if (proc_desc == NULL)
return NULL;
/* If we're in the prologue, the PDR for this frame is not yet valid.
Say no here and we'll fall back on the heuristic unwinder. */
if (alpha_mdebug_in_prologue (pc, proc_desc))
return NULL;
return &alpha_mdebug_frame_unwind;
}
@ -369,11 +343,7 @@ alpha_mdebug_frame_base_address (struct frame_info *next_frame,
struct alpha_mdebug_unwind_cache *info
= alpha_mdebug_frame_unwind_cache (next_frame, this_prologue_cache);
if (info->in_prologue_cache)
return alpha_heuristic_frame_base_address (next_frame,
&info->in_prologue_cache);
else
return info->vfp;
return info->vfp;
}
static CORE_ADDR
@ -382,15 +352,8 @@ alpha_mdebug_frame_locals_address (struct frame_info *next_frame,
{
struct alpha_mdebug_unwind_cache *info
= alpha_mdebug_frame_unwind_cache (next_frame, this_prologue_cache);
CORE_ADDR vfp;
if (info->in_prologue_cache)
vfp = alpha_heuristic_frame_base_address (next_frame,
&info->in_prologue_cache);
else
vfp = info->vfp;
return vfp - PROC_LOCALOFF (info->proc_desc);
return info->vfp - PROC_LOCALOFF (info->proc_desc);
}
static CORE_ADDR
@ -399,15 +362,8 @@ alpha_mdebug_frame_args_address (struct frame_info *next_frame,
{
struct alpha_mdebug_unwind_cache *info
= alpha_mdebug_frame_unwind_cache (next_frame, this_prologue_cache);
CORE_ADDR vfp;
if (info->in_prologue_cache)
vfp = alpha_heuristic_frame_base_address (next_frame,
&info->in_prologue_cache);
else
vfp = info->vfp;
return vfp - ALPHA_NUM_ARG_REGS * 8;
return info->vfp - ALPHA_NUM_ARG_REGS * 8;
}
static const struct frame_base alpha_mdebug_frame_base = {

21
gdb/alpha-tdep.c
View File

@ -666,10 +666,18 @@ alpha_heuristic_proc_start (CORE_ADDR pc)
CORE_ADDR last_non_nop = pc;
CORE_ADDR fence = pc - heuristic_fence_post;
CORE_ADDR orig_pc = pc;
CORE_ADDR func;
if (pc == 0)
return 0;
/* First see if we can find the start of the function from minimal
symbol information. This can succeed with a binary that doesn't
have debug info, but hasn't been stripped. */
func = get_pc_function_start (pc);
if (func)
return func;
if (heuristic_fence_post == UINT_MAX
|| fence < tdep->vm_min_address)
fence = tdep->vm_min_address;
@ -725,7 +733,7 @@ Otherwise, you told GDB there was a function where there isn't one, or\n\
return 0;
}
struct alpha_heuristic_unwind_cache *
static struct alpha_heuristic_unwind_cache *
alpha_heuristic_frame_unwind_cache (struct frame_info *next_frame,
void **this_prologue_cache,
CORE_ADDR start_pc)
@ -882,7 +890,7 @@ alpha_heuristic_frame_unwind_cache (struct frame_info *next_frame,
/* Given a GDB frame, determine the address of the calling function's
frame. This will be used to create a new GDB frame struct. */
void
static void
alpha_heuristic_frame_this_id (struct frame_info *next_frame,
void **this_prologue_cache,
struct frame_id *this_id)
@ -890,12 +898,17 @@ alpha_heuristic_frame_this_id (struct frame_info *next_frame,
struct alpha_heuristic_unwind_cache *info
= alpha_heuristic_frame_unwind_cache (next_frame, this_prologue_cache, 0);
/* This is meant to halt the backtrace at "_start". Make sure we
don't halt it at a generic dummy frame. */
if (inside_entry_file (info->start_pc))
return;
*this_id = frame_id_build (info->vfp, info->start_pc);
}
/* Retrieve the value of REGNUM in FRAME. Don't give up! */
void
static void
alpha_heuristic_frame_prev_register (struct frame_info *next_frame,
void **this_prologue_cache,
int regnum, int *optimizedp,
@ -954,7 +967,7 @@ alpha_heuristic_frame_p (CORE_ADDR pc)
return &alpha_heuristic_frame_unwind;
}
CORE_ADDR
static CORE_ADDR
alpha_heuristic_frame_base_address (struct frame_info *next_frame,
void **this_prologue_cache)
{

12
gdb/alpha-tdep.h
View File

@ -99,19 +99,7 @@ struct gdbarch_tdep
extern unsigned int alpha_read_insn (CORE_ADDR pc);
extern void alpha_software_single_step (enum target_signal, int);
/* Let other files poke at the heuristic unwinder. */
extern CORE_ADDR alpha_after_prologue (CORE_ADDR pc);
extern struct alpha_heuristic_unwind_cache *
alpha_heuristic_frame_unwind_cache (struct frame_info *, void **, CORE_ADDR);
extern void alpha_heuristic_frame_this_id (struct frame_info *, void **,
struct frame_id *);
extern void alpha_heuristic_frame_prev_register (struct frame_info *,
void **, int, int *,
enum lval_type *,
CORE_ADDR *, int *, void *);
extern CORE_ADDR alpha_heuristic_frame_base_address (struct frame_info *,
void **);
extern void alpha_mdebug_init_abi (struct gdbarch_info, struct gdbarch *);