* NEWS: Add Alpha Linux as a new native configuration.
* mdebugread.c (parse_symbol): When we find a malloc() symbol with
return type VOID, assume no debugging info is available for that
object file and patch the return value into VOID *. Otherwise,
operations requiring an implicit call to malloc() will fail.
* infrun.c (wait_for_inferior): The criterion to detect entering a
sigtramp handler is now: (a) the current pc is inside a sigtramp
handler, (b) the previous pc is not in a sigtramp handler, and (c)
the current stack pointer is "inner" than the old one. Condition
(c) is new to avoid mistaking a return from a signal handler into
sigtramp as a new sigtramp invocation.
* dcache.c (struct dcache_block): Declare addr as CORE_ADDR. An
int may not be big enough to hold an address.
(dcache_hit): Ditto.
(dcache_peek_byte): Fix indentation.
* configure.in (alpha-*-linux*): Add target.
* configure: Rebuild
* config/alpha/tm-alpha.h (PROC_DESC_IS_DYN_SIGTRAMP): New macro.
(SET_PROC_DESC_IS_DYN_SIGTRAMP): Ditto.
(DYNAMIC_SIGTRAMP_OFFSET): Ditto.
(SIGCONTEXT_ADDR): Ditto.
(FRAME_PAST_SIGTRAMP_FRAME): Ditto.
* config/alpha/alpha-linux.mh: New file.
* config/alpha/alpha-linux.mt: Ditto.
* config/alpha/nm-linux.h: Ditto.
* config/alpha/tm-alphalinux.h: Ditto.
* config/alpha/xm-alphalinux.h: Ditto.
* config/alpha/xm-alphaosf.h: Renamed from xm-alpha.h.
* config/alpha/alpha-osf1.mh (XM_FILE): Change from xm-alpha.h to
xm-alphaosf.h.
* config/alpha/alpha-osf2.mh: Ditto.
* blockframe.c (find_pc_partial_function): Pass PC to
SIGTRAMP_START and SIGTRAMP_END macros for the benefit of systems
that detect sigtramp code via designated code sequences (as is the
case for Linux/Alpha, for example).
* config/i386/tm-i386bsd.h: Change SIGTRAMP_START and SIGTRAMP_END
to ignore new PC argument.
* config/m68k/tm-hp300bsd.h: Ditto.
* config/vax/tm-vax.h: Ditto.
* alpha-tdep.c (alpha_linux_sigtramp_offset): New function.
(alpha_osf_skip_sigtramp_frame): Ditto.
(push_sigtramp_desc): Ditto.
(alpha_find_saved_regs): Use SIGCONTEXT_ADDR macro to extract
sigcontext address from frame.
(alpha_saved_pc_after_call): When in sigtramp, use
alpha_frame_saved_pc() instead of read-register().
(after_prologue): When inside a dynamically generated sigtramp
function, there is no prologue, so return address of first
instruction.
(alpha_in_prologue): Fix typo in comment.
(find_proc_desc): Use macro DYNAMIC_SIGTRAMP_OFFSET to determine
whether we're inside a dynamicaly generated sigtramp function. If
so, create and push and appropriate procedure descriptor.
(alpha_frame_chain): Use macro FRAME_PAST_SIGTRAMP_FRAME to obtain
the frame past a sigtramp frame (if the current frame is indeed a
sigtramp function).
(init_extra_frame_info): Don't read next frame register off of
stack-pointer when inside a dynamiccaly generated sigtramp.
(alpha_pop_frame): Also unlink and destroy procedure descriptors
created for dynamically generated sigtramp functions.
* alpha-nat.c: When compiling under Linux, include <asm/reg.h> and
<alpha/ptrace.h> instead of <machine/reg.h>
* Makefile.in (SFILES): Add bcache.c.
(symtab_h): Add bcache.h.
(HFILES_NO_SRCDIR): add bcache.h
(COMMON_OBJS): Add bcache.o
(bcache.o): New target.
* dbxread.c (start_psymtab): Make global_syms & static_syms
type "partial_symbol **".
* hpread.c (hpread_start_symtab): Ditto.
* os9kread.c (os9k_start_psymtab): Ditto.
* stabsread.h (start_psymtab): Ditto.
* {symfile.c, symfile.h} (start_psymtab_common): Ditto.
* maint.c (maintenance_print_statistics): Call
print_symbol_bcache_statistics.
* objfiles.c (allocate_objfile): Initialize psymbol bcache malloc
and free pointers.
* solib.c (allocate_rt_common_objfile): Ditto.
* symfile.c (reread_symbols): Ditto.
(free_objfile): Free psymbol bcache when objfile is freed.
(objfile_relocate): Use new indirect psymbol pointers.
* objfiles.h (struct objfile): Add psymbol cache.
* symfile.c (compare_psymbols): Now passed pointers to pointers to
psymbols.
(reread_symbols): Free psymbol bcache when freeing other objfile
resources.
(add_psymbol_to_list, add_psymbol_addr_to_list): Initialize new
psymbol using the psymbol bcache.
(init_psymbol_list): Psymbol lists now contain pointers rather than
the actual psymbols.
* symfile.h (psymbol_allocation_list): Psymbol lists now dynamically
grown arrays of pointers.
(ADD_PSYMBOL_VT_TO_LIST): Initialize new symbol using the psymbol
bcache.
* symmisc.c (print_partial_symbols): Now takes pointer to pointer
to partial symbol.
(print_symbol_bcache_statistics): New function to print per objfile
bcache statistics.
(print_partial_symbol, print_partial_symbols,
maintenance_check_symtabs, extend_psymbol_list):
Account for change to pointer to pointer to partial symbol.
* symtab.c (find_pc_psymbol, lookup_partial_symbol, decode_line_2,
make_symbol_completion_list):
Account for change to pointer to pointer to partial symbol.
* symtab.h (bcache.h): Include.
* xcoffread.c (xcoff_start_psymtab): Make global_syms & static_syms
type "partial_symbol **".
All references changed.
* breakpoint.c (bpstat_what): Add shlib_event to the class types.
Update state table. Reformat so that it's still readable.
When we hit the shlib_event breakpoint, set the calss of shlib_event.
(breakpoint_1): Add "shlib events" as a breakpoint type.
Print the shlib_event breakpoint like other breakpoints.
(create_solib_event_breakpoint): New function.
(breakpoint_re_set_one): Handle solib_event breakpoints.
* breakpoint.h (enum bytype): Add bp_shlib_event breakpoint type.
(enum bpstat_what_main_action): Add BPSTAT_WHAT_CHECK_SHLIBS
action.
(create_solib_event_breakpoint): Declare.
* infrun.c (wait_for_inferior): Handle CHECK_SHLIBS bpstat.
(normal_stop): Inform the user when the inferior stoped due
to a shared library event.
(_initialize_infrun): Add new set/show variable "stop_on-solib-events"
to control whether or not gdb continues the inferior or stops it when
a shared library event occurs.
* minsyms.c (lookup_minimal_symbol_solib_trampoline): New function.
* somsolib.c (TODO list): Update.
(som_solib_create_inferior_hook): Arrange for gdb to be notified
when significant shared library events occur.
* hppa-tdep.c (find_unwind_entry): No longer static.
First cut at the machine independent changes for 7363. Also includes
code to automatically track shl_load/shl_unload calls on hpux.
Add procfs support for Alpha OSF/1-2.x.
* config/alpha/nm-osf.h: Renamed from nm-alpha.h, generic
OSF/1 native support.
* config/alpha/alpha-osf1.mh (NAT_FILE): Changed accordingly.
(MUNCH_DEFINE): Removed.
* config/alpha/alpha-osf2.mh, config/alpha/nm-osf2.h: New files
for procfs support.
* configure.in (alpha-dec-osf*): Use alpha-osf2.mh for OSF/1
release 2.x and higher, else alpha-osf1.mh, as the procfs support
in release 1.x is incomplete.
* Makefile.in (ALLCONFIG): Add config/alpha/alpha-osf2.mh.
* alpha-nat.c (supply_gregset, fill_gregset, supply_fpgregset,
fill_fpgregset): New routines for procfs support.
* inftarg.c (_initialize_inftarg): Don't add ptrace support
if we have an optional procfs and /proc is accessible.
* procfs.c: Include sys/fault.h and sys/syscall.h before
including sys/procfs.h.
(unconditionally_kill_inferior): If PROCFS_NEED_PIOCSSIG_FOR_KILL
is defined, additionally perform a PIOCSSIG to really terminate
the inferior.
(create_procinfo): Always return a result.
(create_procinfo, do_attach): Don't trace T_IFAULT faults if
PROCFS_DONT_TRACE_IFAULT is defined.
(procfs_init_inferior): Use START_INFERIOR_TRAPS_EXPECTED as
argument to startup_inferior if it is defined.
(proc_set_exec_trap): If PIOCSSPCACT is defined, use it instead
of tracing exits from exec system calls. Needed for the user level
loader under Alpha OSF/1.
(do_detach): Clear any pending signal if we want to detach from
a process without a signal.
(set_proc_siginfo): If PROCFS_DONT_PIOCSSIG_CURSIG is defined,
don't issue a PIOCSSIG if pr_cursig already contains the signal we
intend to set.
(info_proc_signals): If PROCFS_SIGPEND_OFFSET is defined, the
pending signals are numbered from 1 instead of 0.
(info_proc_mappings): Increase size of output format for addresses
if BFD_HOST_64_BIT is defined.
(procfs_stop): Renamed from child_stop.
(_initialize_procfs): Don't add procfs support if we have an
optional procfs and /proc is not accessible.
commands.
* top.c (struct user_args): Structure for holding arguments to
user defined commands.
(print_command_line): Delete unused "tmp_chain" variable. Clean
up flow control by having cases exit in the same manner.
Before executing a command or evaluating an expression, substitute
the current $arg0..$arg9 values if the command/expression uses them.
(arg_cleanup): New function.
(setup_user_args, locate_arg, insert_args): Likewise.
(execute_user_command): Allow arguments to user defined commands.
* Allow if/while commands to be used within a breakpoint command
list.
* breakpoint.c (bpstat_do_actions): Call execute_control_command
rather than execute_command (passes entire command structure rather
than just the command line text).
(breakpoint_1): Use "print_command_line" to print a breakpoint
command line (including control structures).
* gdbcmd.h (execute_control_command): Provide extern decl.
(print_command_line): Likewise.
* top.c (execute_control_command): No longer static.
(print_command_line): New function to recursively print a command
line, including control structures.
Various name changes to match those used by hp-symtab.h.
No longer sanitize away hpread changes. Merge ChangeLog.hpread into
ChangeLog and ChangeLog-93.
* NEWS: Mention filename completion and "info line" enhancements.
* main.c (symbol_completion_function): On "info t foo", return NULL,
don't error().
* main.c (symbol_completion_function): Don't use readline word
breaking. Use new calling convention for c->completer and
complete_on_cmdlist.
* command.h (struct command): Change arguments; now the text passed
to completer does not have any word breaking done. New arg word.
* symtab.{c,h} (make_symbol_completion_list): Do word breaking. Take
word argument.
* {main.c,gdbcmd.h} ({filename,noop}_completer): Take word argument.
* command.{c,h} (complete_on_cmdlist): Take word argument.
* command.c (lookup_cmd_1): Doc fix.
* demangle.c: Change all references to cfront to ARM, since the
actual algorithm is the one specified in the Annotated Reference
Manual. This was confusing users into thinking that full cfront
support was implemented.
* dwarfread.c (CFRONT_PRODUCER): Remove, was never really used.
* eval.c (evaluate_subexp): For STRUCTOP_PTR pass the arg type
directly to lookup_struct_elt_type, which will do the
dereferencing itself.
* gdbtypes.c (lookup_struct_elt_type): Expand comments. Fix
NULL dereferencing bug for unnamed structs, comment out
questionable code.
