Add missing return statements after finding an "add imm{16,32},sp"
instruction.
(mn10300_frame_chain): Add in size of our register save area to find
our caller's frame if our caller does not have a frame pointer.
Fixes some problems debugging optimized code.
* gdbtk.c (gdb_get_breakpoint_info): Add string for new
enumeration del_at_next_stop to bpdisp array.
end-sanitize-gdbtk
* eval.c (evaluate_subexp_for_sizeof): Handle dereferencing
of non-pointer values.
* symtab.c (gdb_mangle_name): Improve mangling of nested types,
their physical names already include the class name.
* valops.c (value_cast): Handle upcast of a class pointer.
From Andreas Schwab (schwab@issan.informatik.uni-dortmund.de):
* corelow.c (get_core_registers): Make secname big enough.
ChangeLog sh-tdep.c config/sh/tm-sh.h
* config/sh/tm-sh.h: add define for FPSCR_REGNUM
* sh-tdep.c (sh_show_regs): print out all registers for
the current processor
* procfs.c (init_procinfo): new function, abstracts some code
shared by create_procinfo and do_attach;
(procfs_set_inferior_syscall_traps): new function, abstracts
some code needed by procfs_init_inferior, do_attach, and
procfs_lwp_creation_handler; (procfs_first_available): new
function, find any LWP that's runnable; (procfs_thread_alive):
replace stub function with real implementation;
(procfs_lwp_creation_handler): fix bug starting new child
threads; (info_proc): bug fixes and enhancements for the
"INFO PROCESSES" command; (close_procinfo_file): call new
function "delete_thread" to cleanup GDB's thread database;
(proc_init_failed): add new argument "kill", to control whether
process is killed (so this function can be shared by
create_procinfo and do_attach); (procfs_exit_handler): handle
exit from an attached process, and cleanup procinfo handles
when the process exits; (procfs_resume, procfs_wait): cleanup
after a thread when it exits; (do_attach, do_detach): handle
attached processes with multiple threads; plus some general
improvements in the diagnostic output.
* sol-thread.c (sol_thread_alive): replace stub with real
implementation; (thread_to_lwp, lwp_to_thread): enhance to
handle threads that may have exited; (sol_thread_attach): add
startup setup stuff; (sol_thread_detach): add unpush_target
call; (sol_thread_mourn_inferior): add unpush_target call;
(sol_thread_wait, sol_thread_resume): enhance to deal with
thread exit cleanly; (sol_thread_new_objfile,
sol_thread_pid_to_str): detect unsuccessful startup and
don't crash; plus some general cleanup.
* thread.c (delete_thread): new function, allows targets to
notify gdb when a thread is no longer valid.
* infrun.c (wait_for_inferior): don't try to detect a new
thread on receiving a TARGET_EXITED event.
* rs6000-tdep.c (frameless_function_invocation): Mark frames
with a zero PC as frameless to improve backtraces from core dumps
caused by dereferencing a NULL function pointer.
(frameless_function_invocation, frame_saved_pc, rs6000_frame_chain):
Handle frameless functions interrupted by a signal.
* sparc-tdep.c (sparc_init_extra_frame_info, sparc_frame_saved_pc):
Handle frameless functions interrupted by a signal.
* procfs.c: Minor changes to make pre-ANSI compilers happy.
(procfs_notice_signals): Copy traced signal set back to
pi->prrun.pr_trace.
(unconditionally_kill_inferior): If PR_DEAD is defined,
rerun inferior after killing it.
floatformat_ieee_double_littlebyte_bigword for little endian
target byte order.
* utils.c (floatformat_to_doublest): Create local preswapped
copy of input for floatformat_littlebyte_bigword formats.
(get_field, put_field): Treat floatformat_littlebyte_bigword
the same as floatformat_little.
(floatformat_from_doublest): Postswap output words for
the floatformat_littlebyte_bigwords format.
(DONT_RELOCATE_SYMFILE_OBJFILE): Removed.
* xcoffsolib.h (struct vmap): Add new members tvma, toffs and dvma,
remove tadj.
* exec.c (bfdsec_to_vmap): Initialize new vmap members, initialize
tstart and dstart with section VMA.
* rs6000-nat.c (vmap_symtab): Relocate relative to the VMA in the
object file.
(vmap_ldinfo, xcoff_relocate_core): Adjust tstart by section offset
of the text section, remove DONT_RELOCATE_SYMFILE_OBJFILE hack.
(vmap_exec): Relocate relative to the VMA in the object file,
relocate .bss section as well.
(xcoff_relocate_core): No longer adjust section addresses by VMA.
* rs6000-tdep.c (find_toc_address): Change type of tocbase
to CORE_ADDR.
* xcoffread.c (secnum_to_bfd_section): New routine to get
BFD section from CS section number.
(scan_xcoff_symtab): Make toc_offset section relative.
* symtab.c (total_number_of_methods): Avoid core dump if
baseclass type is still undefined.
that directory.
* defs.h utils.c (error warning): Make message be const.
* main.c (fputs_unfiltered): Only send gdb_stdout and gdb_stderr
to hook. Otherwise send it to fputs.
* monitor.c monitor.h (monitor_get_dev_name): New function. Does
the obvious.
* remote-e7000.c: Remove debugify stuff. Change printf, fprintf
to _filtered forms to make output appear in GUIs. Replace all
uses of SERIAL_READCHAR with readchar, which has better error
checking.
* (e7000_parse_device): Add prototype.
* (readchar): Improve doc. Handle random serial errors.
* (expect): Disable notice_quit code. It's busted. Remove
serial error handling (it's now handled in readchar). Remove
remote_debug echoing. That's handled in readchar as well.
* (e7000_parse_device): Remove serial_flag arg. It's not
necessary.
* (e7000_open): Split into two pieces. Second part is
e7000_start_remote, and is error protected. Now, when we connect
to the target, we setup the initial frame and registers so that
the user gets an immediate indication of where the target is.
* (gch): Remove debug output. That's handled by readchar.
* (e7000_read_inferior_memory): Handle errors better.
* (_initialize_remote_e7000): Get rid of `<xxx>' things from
command names. They show up when doing completion and confuse
things horribly.
* ser-e7kpc.c: Remove the last seven months of brain damage. Get
rid of the DLL's since we can access the device directly from Win32s
and Win95. Get rid of debugify crud.
* serial.c: Remove debugify cruft.
* (serial_logchar serial_log_command serial_write serial_readchar
serial_send_break serial_close): Merge common functionality into
serial_logchar. Clean up rest of routines.
* sparclet-rom.c: Disembowel. Leave only download routine.
Download routine now switches to remote target automatically.
* top.c (disconnect): Only define if SIGHUP is defined. Cleans
up MSVC/Win32 problem.
* utils.c (gdb_flush): Don't call hook unless it's for gdb_stdout
or gdb_stderr.
* config/sh/tm-sh.h: Define TARGET_SH for WinGDB.
* config/sparc/tm-sparclet.h: Remove override for prompt.
o Provide poll_quit callback to simulators
so that they can poll for SIGINT on
clueless OS's.
o Add sim_stop to simulators so that clients
can request a halt (eg gdbtk's STOP button)
Works for PPC!
o Re-arange remote-sim.c so that the
hard work is moved from gdbsim_resume()
to gdbsim_wait() (where it should be).
(INSTALL_XFORM1): Remove.
(install-only): Use $(program_transform_name) directly, rather
than using $(INSTALL_XFORM) and $(INSTALL_XFORM1).
(uninstall): Transform name.
* procfs.c: Substantial (but incomplete) changes to support
sysv4.2mp procfs as implemented in UnixWare 2.1. The procinfo
struct now has substructs like struct flt_ctl instead of
just a fltset_t and has a ctl_fd, status_fd, as_fd, and
map_fd instead of a single fd. Non-sysv4.2mp procfs models
still have the structs and multiple fds, but don't use the
entire struct and the four fds all point to the same thing.
We use PROCFS_USE_READ_WRITE to decide whether to talk to
procfs with reads/writes or use ioctl instead. We use
HAVE_MULTIPLE_PROC_FDS to determine whether procfs really has
multiple fds or not. PROC_NAME_FMT is split out into
CTL_PROC_NAME_FMT, AS_PROC_NAME_FMT, MAP_PROC_NAME_FMT,
STATUS_PROC_NAME_FMT.
(procfs_notice_signals): now a necessary wrapper around
(notice_signals): which are the new guts for noticing signals
(open_proc_file): gets a new flag arg used in sysv4.2mp to
determine whether or not to attempt to open the ctl_fd.
(procfs_read_status): new local function, reads procfs status
(procfs_write_pcwstop): new local function, writes a PCWSTOP
(procfs_write_pckill): new local function, writes a PCKILL
(unconditionally_kill_inferior): remove signo since we now
just call procfs_write_pckill().
(procfs_xfer_memory): call lseek with SEEK_SET rather than 0
(proc_iterate_over_mappings): the whole function is ifdefed
on UNIXWARE to keep things readable.
Expanded the syscall_table to include new potential sysv4.2mp
members. Note that all ifdefs of UNIXWARE should be eliminated
if possible or renamed to describe what's being selected for a
bit better. Sysv4.2mp and IRIX both have SYS_sproc so the
IRIX specific code now also checks it's not UNIXWARE.
* config/i386/tm-i386v42mp.h: also define HAVE_PSTATUS_T,
HAVE_NO_PRRUN_T, PROCFS_USE_READ_WRITE, and UNIXWARE
* config/mips/nm-irix4.h: set CTL_PROC_NAME_FMT et al to
"/debug/%d" as PROC_NAME_FMT used to be
* (hexnumlen): Add prototype. Use max, not min.
* (remote_write_bytes remote_read_bytes): Fix max packet size
calculations to properly account for packet overhead. Also handle
(probably rare) case where remote_register_buf_size isn't set.
address.
* (remote_ops extended_remote_ops remote_desc remote_write_size):
Make static.
* (remote_fetch_registers remote_write_bytes remote_read_bytes):
Record size of response to fetch registers command, use this to
limit size of memory read and write commands.
* (push_remote_target): New function to make it possible to have
another target switch to the remote target.
* target.h: Add prototype for push_remote_target.
* sh-tdep.c (sh_frame_find_saved_regs): Fix sign extension bugs
for hosts which default to unsigned chars (such as SGI's).
* (_initialize_sh_tdep): Don't set remote_write_size. It's now
handled automatically in remote.c.
Except for the two m32r modules, this checkin is for
overlay support.
* blockframe.c: blockvector_for_pc_sect(), block_for_pc_sect(),
find_pc_sect_function(), find_pc_sect_partial_function(): new
functions for debugging overlays; pc without section is ambiguous.
* breakpoint.[ch]: add section pointer to breakpoint struct;
add section argument to check_duplicates(); check section as well
as pc in [breakpoint_here_p(), breakpoint_inserted_here_p(),
breakpoint_thread_match(), bpstat_stop_status()];
add section argument to describe_other_breakpoints();
use INIT_SAL() macro to zero-out new sal structures;
make resolve_sal_pc() fix up the sal's section as well as its pc;
match on section + pc in clear_command() and delete_breakpoint();
account for overlay sections in insert_breakpoints(),
remove_breakpoint() and breakpoint_re_set_one();
all this to support overlays where a PC is not unique.
* exec.c: change xfer_memory() to handle overlay sections.
* findvar.c: change read_var_value() to handle overlay sections.
* frame.h: declaration for block_for_pc_sect() [blockframe.c].
* infcmd.c: jump_command() warns against jumping into an overlay
that's not in memory. Also use INIT_SAL() to initialize sals.
* infrun.c: wait_for_inferior() sets a flag to invalidate cached
overlay state information; Also use INIT_SAL() to init sals.
* m32r-rom.c: modify load routines to use LMA instead of VMA.
* m32r-stub.c: mask exit value down to 8 bits; screen out any
memory read/writes in the range 600000 to a00000, and ff680000
to ff800000 (hangs because nothing is mapped there); fix strcpy().
* maint.c: maintenance command "translate-address" supports overlays.
* minsyms.c: lookup_minimal_symbol_by_pc_sect() supports overlays.
* objfiles.[ch]: add ovly_mapped field to the obj_section struct;
this constitutes gdb's internal overlay mapping table. Add macro
ALL_OBJSECTIONS() to loop thru the obj_structs and look at overlays.
Add function find_pc_sect_section().
* printcmd.c: modify print_address_symbolic() with overlay smarts;
modify address_info() with overlay smarts; add function sym_info()
to support the INFO SYMBOL command (translate address to symbol(s));
modify disassemble_command() to work on unmapped overlays.
* source.c: use INIT_SAL() to initialize sals.
* symfile.[ch]: change generic_load() to use section's LMA address
instead of VMA address, for overlay sections.
Add numerous functions for finding a PC's section / overlay,
translating between VMA and LMA address ranges, determining if an
overlay section is mapped, etc. Add several user commands for
overlay debugging. Add support for a "generic" form of automatically
reading overlay mapping info from the inferior (based on the default
(simple) overlay manager which Cygnus provides as an example).
* symtab.[ch]: add functions find_pc_sect_symtab(),
find_pc_sect_psymtab(), find_pc_sect_psymbol(), find_pc_sect_line()
for lookup; modify lookup_symbol and decode_line_1() to use them;
modify find_function_start_sal() to account for overlay sections;
add macro INIT_SAL() for initializing struct symtab_and_line.
* target.c: fix a comment in the declaration of target_ops.
mips_skip_stub, mips_ignore_helper): New functions for dealing
with MIPS16 call/return thunks.
(mips_init_frame_pc_first): New function to implement
INIT_FRAME_PC_FIRST macro; includes code from old macro plus
new code to skip over MIPS16 thunks.
(mips_frame_chain): Skip over MIPS16 thunks.
* config/mips/tm-mips.h (mips_in_call_stub, mips_in_return_stub,
mips_skip_stub, mips_ignore_helper): Declare.
(IN_SOLIB_CALL_TRAMPOLINE, IN_SOLIB_RETURN_TRAMPOLINE,
SKIP_TRAMPOLINE_CODE, IGNORE_HELPER_CALL): New macros that invoke
the above functions.
(INIT_FRAME_PC_FIRST): Change to invoke mips_init_frame_pc.
(mips_init_frame_pc): Declare.
* infrun.c (wait_for_inferior): Use new IGNORE_HELPER_CALL macro
to decide if certain library function calls should be ignored.
* symtab.c (find_pc_symtab): change to support the case
where the objfile is reordered and contains both coff and
stabs debugging info (continue on if a psymtab isn't found).
* config/mips/tm-mips.h (REGISTER_CONVERT_TO_TYPE,
REGISTER_CONVERT_FROM_TYPE): Swap words if target, not host,
is big-endian and if registers are 32 bits.
* mips-tdep.c (mips_print_register, mips_extract_return_value,
mips_store_return_value): Fix floating-point word-order problems on
little-endian targets introduced by changes of Mar 21.
globals.
(remote_resume, remote_wait): Use them.
* d10v-tdep.c: Set the above hooks.
(tracesource): New GDB variable, controls source display in
traces.
(display_trace): Find and display source line if requested.
(trace_info): Mention empty trace buffer if appropriate.
(tdisassemble_command): Robustify argument handling.
copy first two floating point arguments to general registers, so that
MIPS16 functions will receive the arguments correctly.
(mips_print_register): Print double registers correctly on
little-endian hosts.
(mips_extract_return_value): Return double values correctly
on little-endian hosts.
* mdebugread.c (parse_procedure): Adjust address of procedure relative
to address in file descriptor record; this accounts for constant
strings that may precede functions in the text section. Remove
now-useless lowest_pdr_addr from argument list and all calls.
* Makefile.in: Install gdbtcl dir instead of gdbtk.tcl.
* gdbtk.c: Added some ifdefs for Windows. Changed GDBTK_FILENAME
to GDBTK_LIBRARY, which is now a path to search.
(gdb_path_conv): New function. Convert Cygwin32 pathname to
DOS-style pathname.
* aclocal.m4, configure.in: Changes for Windows builds.
* configure: Rebuilt.
bpstat_stop_status): Do not disable watchpoints going out of scope.
(insert_breakpoints): Make sure that the current frame is valid
before calling find_frame_addr_in_frame_chain.
* top.c (setup_user_args): Handle quotes and backslashes.
(print_gdb_version): Update copyright year.
(sim_open): Return a `descriptor' as result.
(*): New argument of descriptor result from sim_open.
* remote-sim.c (gdbsim_desc): Renamed from gdbsim_open_p.
(gdbsim_open): Record result of sim_open in gdbsim_desc.
Pass argv list to sim_open, argv[0] = pseudo program name.
(*): Pass gdbsim_desc to sim_foo fns.
* symtab.h (INIT_SAL): New macro to initialize symtab_and_line,
to insure consistant initialization of unused fields to zero.
* symtab.c: replace initializations of sals with new macro INIT_SAL.
* breakpoint.c: ditto.
* infrun.c: ditto.
* infcmd.c: ditto.
* source.c: add call to INIT_SAL macro.
