If you find inaccuracies in this list, please send mail to bug-gdb@prep.ai.mit.edu. If you would like to work on any of these, you should consider sending mail to the same address, to find out whether anyone else is working on it. TODO: GDB 5.0 ============= Here are _all_ the issues that have been raised vis-a-vis the 5.0 release. Also check the GDB, and other, mail archives (http://sourceware.cygnus.com/ml/gdb/). If, however, you fix something, then feel free to tweek this file (deleting the problem). Just send a note to gdb-patches so that I see the change. The names in paren are those that might know more about the problem. They don't necessarily indicate the people that will fix the problem. -- GDB 5.0: Must have ------------------ These are things that have been identifed as must-have for this release of GDB. -- Solaris/x86 - which? (Nick Duffek, Peter Schauer, Michael Snyder?) Nick D's working through patches from Michael Snyder and Peter S. -- RFA: procfs.c: init_procfs_ops should set procfs_ops.to_has_[all]_memory (Peter Schauer, Andrew Cagney?) I am pretty sure that this is caused by some accidental deletion, but procfs.c:init_procfs_ops no longer sets procfs_ops.to_has_memory and procfs_ops.to_has_all_memory. http://sourceware.cygnus.com/ml/gdb-patches/2000-q1/msg01057.html -- GDB 5.0: Nice to have --------------------- These are things that might make it in 5.0 but don't sit in the critical path. If they miss the 5.0 cut then they definitly should make the follow-on release. -- Generic: lin-thread cannot handle thread exit (Mark Kettenis, Michael Snyder) http://sourceware.cygnus.com/ml/gdb/2000-q1/msg00525.html The thread_db assisted debugging code doesn't handle exiting threads properly, at least in combination with glibc 2.1.3 (the framework is there, just not the actual code). There are at least two problems that prevent this from working. As an additional reference point, the pre thread_db code didn't work either. -- Java (Anthony Green, David Taylor) Anthony Green has started contributing late breaking Java patches: Patch: java tests http://sourceware.cygnus.com/ml/gdb-patches/2000-q1/msg00512.html Patch: java booleans http://sourceware.cygnus.com/ml/gdb-patches/2000-q1/msg00515.html Patch: handle N_MAIN stab http://sourceware.cygnus.com/ml/gdb-patches/2000-q1/msg00527.html It should be able to squeeze these in. -- Pascal (Pierre Muller, David Taylor) The pascal support patches nave been added to the patch data base. I [cagney] strongly suspect that they are better suited for 5.1. Indent -gnu ? http://sourceware.cygnus.com/ml/gdb/2000-q1/msg00496.html 2 pascal language patches inserted in database http://sourceware.cygnus.com/ml/gdb/2000-q1/msg00521.html -- Programs run under GDB have SIGCHLD masked. [I think this can be worked around by using the action command - cagney] -- GNU/Linux/x86 and random thread signals (and Solaris/SPARC but not Solaris/x86) Christopher Blizzard writes: So, I've done some more digging into this and it looks like Jim Kingdon has reported this problem in the past: http://sourceware.cygnus.com/ml/bug-gdb/1999-10/msg00058.html I can reproduce this problem both with and without Tom's patch. Has anyone seen this before? Maybe have a solution for it hanging around? :) There's a test case for this documented at: when debugging threaded applications you get extra SIGTRAPs http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=9565 [There should be a GDB testcase - cagney] -- IRIX? Benjamin Gamsa wrote: Has anyone successfully built the latest (from cvs) gdb on IRIX6.4 or later? The first problem I hit is that proc-api.c includes sys/user.h, which no longer exists under IRIX6.4. If I comment out that include, the next problem I hit is that PIOCGETPR and PIOCGETU are no longer defined in IRIX6.4 (presumably related to the disappearance of user.h). -- Regressions (prologue) with devel GCC. The current head of the GCC branch doesn't co-operate well with GDB over debug information. Regressions problem (200 failures) http://sourceware.cygnus.com/ml/gdb/2000-q1/msg00475.html -- RFA: infrun.c, breakpoint.c: Kludge for Solaris x86 hardware watchpoint support http://sourceware.cygnus.com/ml/gdb-patches/2000-q1/msg00664.html Unfortunately I'd need the following kludge to work around a Solaris x86 kernel problem with hardware watchpoint support. See the comment in the patches for a description of the problem. -- RFD: infrun.c: No bpstat_stop_status call after proceed over break ? http://sourceware.cygnus.com/ml/gdb-patches/2000-q1/msg00665.html I am currently trying to fix a GDB bug with missing watchpoint triggers after proceeding over a breakpoint on x86 targets. -- x86 linux GDB and SIGALRM (???) http://sourceware.cygnus.com/ml/gdb/2000-q1/msg00803.html -- Migrate qfThreadInfo packet -> qThreadInfo. (Andrew Cagney) Add support for packet enable/disable commands with these thread packets. General cleanup. [PATCH] Document the ThreadInfo remote protocol queries http://sourceware.cygnus.com/ml/gdb-patches/2000-q1/msg00832.html [PATCH] "info threads" queries for remote.c http://sourceware.cygnus.com/ml/gdb-patches/2000-q1/msg00831.html -- MI documentation in GDB user guide. (Andrew Cagney, Elena Zannoni, Stan Shebs, anyone else?) > (Are there plans to make gdbmi.texi be part of the manual as well?) I'd like to see it go in there sooner rather than later too. Otherwise you're introducing discrepancies between the manual and the documentation, and everybody is confused - witness the lack of doc for the tracing commands still, some two years after they were added... Discussion on MI can be found on the thread: [PATCH] GDB command-line switches and annotations docs http://sourceware.cygnus.com/ml/gdb-patches/2000-q1/msg00639.html -- Revised UDP support (was: Re: [Fwd: [patch] UDP transport support]) http://sourceware.cygnus.com/ml/gdb-patches/2000-04/msg00000.html -- problems loading shared libraries - with attached test case http://sourceware.cygnus.com/ml/gdb/2000-q1/msg00820.html Hi, I'm having problems loading shared libraries. This is with a build of gdb out of cvs that I pulled and built on March 27th and has been there for at least a week. I haven't gone back further than that. This is with the gcc that is shipping with Red Hat 6.2: Reading specs from /usr/lib/gcc-lib/i386-redhat-linux/egcs-2.91.66/specs gcc version egcs-2.91.66 19990314/Linux (egcs-1.1.2 release) I'm using "set auto-solib-add 0" after main has been called. If I use "shar" to load a shared library manually once I can't use it again to load another shared library later. Please see the attached log for an example of how to reproduce the problem. -- GDB 5.0: Won't have ------------------- The following are on hold until GDB 5.0 is branched. In general they won't go in as they unsettle the GDB sources. -- ATTRIBUTE_UNUSED The need for this as almost been eliminated. The next version of GCC (assuming cagney gets the revised patch approved) will be able to supress unused parameter warnings. -- Delete macro TARGET_BYTE_ORDER_SELECTABLE. Patches in the database. -- Updated readline Readline 4.? is out. A merge wouldn't hurt. -- Purge PARAMS Something to do post 5.0 branch -- Elimination of make_cleanup_func. (Andrew Cagney) make_cleanup_func elimination http://sourceware.cygnus.com/ml/gdb-patches/2000-q1/msg00791.html http://sourceware.cygnus.com/ml/gdb-patches/2000-q1/msg00814.html -- ChangeLog.mi vs ChangeLog-mi (Andrew Cagney) Needs further debate. Re: [PATCH] Add change-log variables to more MI files http://sourceware.cygnus.com/ml/gdb-patches/2000-q1/msg00811.html -- Re: gdb-cvs fails on freebsd-elf http://sourceware.cygnus.com/ml/gdb/2000-04/msg00004.html FreeBSD haven't contributed their local GDB changes back to the master sources (they would at least need an FSF assignment by all individuales that contributed to the work). Given the strong likelhood that this will never happen, I'd suggest that a better strategy would be for someone (with an FSF/GDD assignment) to do a new (clean-room) implementation. That can then be accepted in time for GDB 5.1. -- Re: Various C++ things value_headof/value_from_vtable_info are worthless, and should be removed. The one place in printcmd.c that uses it should use the RTTI functions. RTTI for g++ should be using the typeinfo functions rather than the vtables. The typeinfo functions are always at offset 4 from the beginning of the vtable, and are always right. The vtables will have weird names like E::VB sometimes. The typeinfo function will always be "E type_info function", or somesuch. value_virtual_fn_field needs to be fixed so there are no failures for virtual functions for C++ using g++. Testsuite cases are the major priority right now for C++ support, since i have to make a lot of changes that could potentially break each other. -- GDB 5.0: Test results --------------------- Please include: o the output of `config.guess` o the date o the compiler o a note mentioning the reason for any serious failures. -- alpha-dec-osf4.0a, vendor compiler, 2000-03-04 Still has many compile warnings (mostly relating back to PTR vs void*) but it did compile using: CC=cc .../configure make Test results are: # of expected passes 6223 # of unexpected failures 103 # of unexpected successes 2 # of expected failures 196 # of unresolved testcases 6 # of unsupported tests 1 Looking at the output it would appear that GDB is stepping into some functions instead of ``next'' ing over them: 35 dummy(); (gdb) next dummy () at /home/cagney/GDB-DEJAGNU/src/gdb/testsuite/gdb.base/all-types.c:41 41 { Since there is no active maintainer, I'd consider this sufficient for 5.0 :-/ -- sparc-sun-solaris2.6, egcs-2.91.66, 2000-02-10 http://sourceware.cygnus.com/ml/gdb-testers/2000-q1/msg00030.html There is a SIGTRAP problem that occures in ptrace.exp (Cagney to expand on). # of expected passes 6420 # of unexpected failures 7 # of expected failures 199 -- solaris 2.5.1 sparc?, 2.9-gnupro-99r1, 2000-02-10 http://sourceware.cygnus.com/ml/gdb-testers/2000-q1/msg00032.html # of expected passes 6420 # of unexpected failures 6 # of expected failures 199 -- sparc-unknown-netbsdelf1.4P, egcs-1.1.2+, 2000-03-01 This is with a very recent kernel. # of expected passes 6055 # of unexpected failures 88 # of unexpected successes 1 # of expected failures 190 # of unresolved testcases 59 -- GNU/Linux PPC http://sourceware.cygnus.com/ml/gdb/2000-q1/msg00185.html Kevins merged it all in. -- Unixware Builds ok. Problems with some of the thread code. Unfortunate but not a show stopper. Nick D's still looking at it. Re: uw-threads issues http://sourceware.cygnus.com/ml/gdb/2000-q1/msg00025.html ------------------------------------------------ General Wish List ================= -- GDBARCH cleanup (Andrew Cagney) The non-generated parts of gdbarch.{sh,h,c} should be separated out into gdbarch-utils.[hc] (Name ok). The ``info architecture'' command should be replaced with a fixed ``set architecture'' (implemented using the command.c enum code). Document that gdbarch_init_ftype could easily fail because it didn't identify an architecture. -- Check that GDB can handle all BFD architectures (Andrew Cagney) There should be a test that checks that BFD/GDB are in sync with regard to architecture changes. Something like a test that first queries GDB for all supported architectures and then feeds each back to GDB.. Anyone interested in learning how to write tests? :-) -- This list is probably not up to date, and opinions vary about the importance or even desirability of some of the items. Document trace machinery. Document overlay machinery. Extend .gdbinit mechanism to specify name on command line, allow for lists of files to load, include function of --tclcommand. @c This does not work (yet if ever). FIXME. @c @item --parse=@var{lang} @dots{} @c Configure the @value{GDBN} expression parser to parse the listed languages. @c @samp{all} configures @value{GDBN} for all supported languages. To get a @c list of all supported languages, omit the argument. Without this @c option, @value{GDBN} is configured to parse all supported languages. Add an "info bfd" command that displays supported object formats, similarly to objdump -i. START_INFERIOR_TRAPS_EXPECTED need never be defined to 2, since that is its default value. Clean this up. It should be possible to use symbols from shared libraries before we know exactly where the libraries will be loaded. E.g. "b perror" before running the program. This could maybe be done as an extension of the "breakpoint re-evaluation" after new symbols are loaded. Make single_step() insert and remove breakpoints in one operation. Speed up single stepping by avoiding extraneous ptrace calls. Speed up single stepping by not inserting and removing breakpoints each time the inferior starts and stops. Breakpoints should not be inserted and deleted all the time. Only the one(s) there should be removed when we have to step over one. Support breakpoints that don't have to be removed to step over them. Update gdbint.texinfo to include doc on the directory structure and the various tricks of building gdb. Do a tutorial in gdb.texinfo on how to do simple things in gdb. E.g. how to set a breakpoint that just prints something and continues. How to break on aborts. Etc. Provide "voodoo" debugging of core files. This creates a zombie process as a child of the debugger, and loads it up with the data, stack, and regs of the core file. This allows you to call functions in the executable, to manipulate the data in the core file. GDB reopens the source file on every line, as you "next" through it. Referencing the vtbl member of a struct doesn't work. It prints OK if you print the struct, but it gets 0 if you try to deref it. Persistent command history: A feature where you could save off a list of the commands you did, so you can edit it into something that will bring the target to the same place every time you source it. This would also be useful for automated fast watchpointing; if you go past the place where it watchpoints, you just start it over again and do it more carefully. Deal with the SunOS 4.0 and 4.1.1 ptrace bug that loses the registers if the stack is paged out. Finish the C++ exception handling stub routines. Lint points them out as unused statics functions. Perhaps "i source" should take an argument like that of "list". See if core-aout.c's fetch_core_registers can be used on more machines. E.g. MIPS (mips-xdep.c). unpack_double() does not handle IEEE float on the target unless the host is also IEEE. Death on a vax. Set up interface between GDB and INFO so that you can hop into interactive INFO and back out again. When running under Emacs, should use Emacs info, else fork the info program. Installation of GDB should install its texinfo files into the info tree automagically, including the readline texinfo files. "help address" ought to find the "help set print address" entry. Remove the VTBL internal guts from printouts of C++ structs, unless vtblprint is set. Remove "at 0xnnnn" from the "b foo" response, if `print address off' and if it matches the source line indicated. The prompt at end of screen should accept space as well as CR. Check STORE_RETURN_VALUE on all architectures. Check near it in tm-sparc.h for other bogosities. Check for storage leaks in GDB, I'm sure there are a lot! vtblprint of a vtbl should demangle the names it's printing. Backtrace should point out what the currently selected frame is, in its display, perhaps showing "@3 foo (bar, ...)" or ">3 foo (bar, ...)" rather than "#3 foo (bar, ...)". "i program" should work for core files, and display more info, like what actually caused it to die. "x/10i" should shorten the long name, if any, on subsequent lines. Check through the code for FIXME comments and fix them. dbxread.c, blockframe.c, and plenty more. (I count 634 as of 940621 - sts) "next" over a function that longjumps, never stops until next time you happen to get to that spot by accident. E.g. "n" over execute_command which has an error. "set zeroprint off", don't bother printing members of structs which are entirely zero. Useful for those big structs with few useful members. GDB does four ioctl's for every command, probably switching terminal modes to/from inferior or for readline or something. terminal_ours versus terminal_inferior: cache state. Switch should be a noop if the state is the same, too. ptype $i6 = void??! Clean up invalid_float handling so gdb doesn't coredump when it tries to access a NaN. While this might work on SPARC, other machines are not configured right. "b value_at ; commands ; continue ; end" stops EVERY OTHER TIME! Then once you enter a command, it does the command, runs two more times, and then stops again! Bizarre... (This behaviour has been modified, but it is not yet 100% predictable when e.g. the commands call functions in the child, and while there, the child is interrupted with a signal, or hits a breakpoint.) help completion, help history should work. Check that we can handle stack trace through varargs AND alloca in same function, on 29K. wait_for_inferior loops forever if wait() gives it an error. "i frame" shows wrong "arglist at" location, doesn't show where the args should be found, only their actual values. There should be a way for "set" commands to validate the new setting before it takes effect. A mess of floating point opcodes are missing from sparc-opcode.h. Also, a little program should test the table for bits that are overspecified or underspecified. E.g. if the must-be-ones bits and the must-be-zeroes bits leave some fields unexamined, and the format string leaves them unprinted, then point this out. If multiple non-alias patterns match, point this out too. Finally, there should be a sparc-optest.s file that tries each pattern out. This file should end up coming back the same (modulo transformation comments) if fed to "gas" then the .o is fed to gdb for disassembly. Eliminate all the core_file_command's in all the xdep files. Eliminate separate declarations of registers[] everywhere. "ena d" is ambiguous, why? "ena delete" seems to think it is a command! Perhaps move the tdep, xdep, and nat files, into the config subdirectories. If not, at least straighten out their names so that they all start with the machine name. inferior_status should include stop_print_frame. It won't need to be reset in wait_for_inferior after bpstat_stop_status call, then. i line VAR produces "Line number not known for symbol ``var''.". I thought we were stashing that info now! We should be able to write to random files at hex offsets like adb. Make "target xxx" command interruptible. Handle add_file with separate text, data, and bss addresses. Maybe handle separate addresses for each segment in the object file? Handle free_named_symtab to cope with multiply-loaded object files in a dynamic linking environment. Should remember the last copy loaded, but not get too snowed if it finds references to the older copy. Generalize and Standardize the RPC interface to a target program, improve it beyond the "ptrace" interface, and see if it can become a standard for remote debugging. (This is talking about the vxworks interface. Seems unlikely to me that there will be "a standard" for remote debugging anytime soon --kingdon, 8 Nov 1994). Remove all references to: text_offset data_offset text_data_start text_end exec_data_offset ... now that we have BFD. All remaining are in machine dependent files. When quitting with a running program, if a core file was previously examined, you get "Couldn't read float regs from core file"...if indeed it can't. generic_mourn_inferior... Have remote targets give a warning on a signal argument to target_resume. Or better yet, extend the protocols so that it works like it does on the Unix-like systems. Sort help and info output. Re-organize help categories into things that tend to fit on a screen and hang together. renote-nindy.c handles interrupts poorly; it error()s out of badly chosen places, e.g. leaving current_frame zero, which causes core dumps on the next command. Add in commands like ADB's for searching for patterns, etc. We should be able to examine and patch raw unsymboled binaries as well in gdb as we can in adb. (E.g. increase the timeout in /bin/login without source). Those xdep files that call register_addr without defining it are probably simply broken. When reconfiguring this part of gdb, I could only make guesses about how to redo some of those files, and I probably guessed wrong, or left them "for later" when I have a machine that can attempt to build them. When doing "step" or "next", if a few lines of source are skipped between the previous line and the current one, print those lines, not just the last line of a multiline statement. When searching for C++ superclasses in value_cast in valops.c, we must not search the "fields", only the "superclasses". There might be a struct with a field name that matches the superclass name. This can happen when the struct was defined before the superclass (before the name became a typedef). Handling of "&" address-of operator needs some serious overhaul for ANSI C and consistency on arrays and functions. For "float point[15];": ptype &point[4] ==> Attempt to take address of non-lvalue. For "char *malloc();": ptype malloc ==> "char *()"; should be same as ptype &malloc ==> "char *(*)()" call printf ("%x\n", malloc) ==> weird value, should be same as call printf ("%x\n", &malloc) ==> correct value Fix dbxread.c symbol reading in the presence of interrupts. It currently leaves a cleanup to blow away the entire symbol table when a QUIT occurs. (What's wrong with that? -kingdon, 28 Oct 1993). Mipsread.c reads include files depth-first, because the dependencies in the psymtabs are way too inclusive (it seems to me). Figure out what really depends on what, to avoid recursing 20 or 30 times while reading real symtabs. value_add() should be subtracting the lower bound of arrays, if known, and possibly checking against the upper bound for error reporting. mipsread.c symbol table allocation and deallocation should be checked. My suspicion is that it's full of memory leaks. SunOS should have a target_lookup_symbol() for common'd things allocated by the shared library linker ld.so. When listing source lines, check for a preceding \n, to verify that the file hasn't changed out from under us. When listing source lines, eat leading whitespace corresponding to the line-number prefix we print. This avoids long lines wrapping. mipsread.c needs to check for old symtabs and psymtabs for the same files, the way it happens for dbxread.c and coffread.c, for VxWorks incremental symbol table reloading. Get all the remote systems (where the protocol allows it) to be able to stop the remote system when the GDB user types ^C (like remote.c does). For ebmon, use ^Ak. Possible feature: A version of the "disassemble" command which shows both source and assembly code ("set symbol-filename on" is a partial solution). investigate "x/s 0" (right now stops early) (I think maybe GDB is using a 0 address for bad purposes internally). Make "info path" and path_command work again (but independent of the environment either of gdb or that we'll pass to the inferior). Make GDB understand the GCC feature for putting octal constants in enums. Make it so overflow on an enum constant does not error_type the whole type. Allow arbitrarily large enums with type attributes. Put all this stuff in the testsuite. Make TYPE_CODE_ERROR with a non-zero TYPE_LENGTH more useful (print the value in hex; process type attributes). Add this to the testsuite. This way future compilers can add new types and old versions of GDB can do something halfway reasonable. Clean up formatting of "info registers" on MIPS and 88k. See if it is possible to do this generically across all target architectures. GDB gets bfd/corefile.c and gdb/corefile.c confused (this should be easy to repeat even with something more recent than GDB 4.9). Check that unmatched RBRAC doesn't abort(). Fix mdebugread.c:parse_type to do fundamental types right (see rs6000_builtin_type in stabsread.c for what "right" is--the point is that the debug format fixes the sizes of these things and it shouldn't depend on stuff like TARGET_PTR_BIT and so on. For mdebug, there seem to be separate bt* codes for 64 bit and 32 bit things, and GDB should be aware of that). Also use a switch statement for clarity and speed. Investigate adding symbols in target_load--some targets do, some don't. Put dirname in psymtabs and change lookup*symtab to use dirname (so /foo/bar.c works whether compiled by cc /foo/bar.c, or cd /foo; cc bar.c). Merge xcoffread.c and coffread.c. Use breakpoint_re_set instead of fixup_breakpoints. Fix byte order and int size sins in tm-a29k.h (EXTRACT_RETURN_VALUE). Perhaps should reproduce bug and verify fix (or perhaps should just fix it...). Make a watchpoint on a constant expression an error (or warning perhaps) Make a watchpoint which contains a function call an error (it is broken now, making it work is probably not worth the effort). Re-do calls to signal() in remote.c, and inflow.c (set_sigint_trap and so on) to be independent of the debugging target, using target_stop to stop the inferior. Probably the part which is now handled by interrupt_query in remote.c can be done without any new features in the debugging target. New test case based on weird.exp but in which type numbers are not renumbered (thus multiply defining a type). This currently causes an infinite loop on "p v_comb". Nuke baseclass_addr. Nuke USG define. "source file more recent" loses on re-read Fix 386 floating point so that floating point registers are real registers (but code can deal at run-time if they are missing, like mips and 68k). This would clean up "info float" and related stuff. Look at Solaris bug in interrupt.exp. Can get out of syscall with PRSABORT (syscall will return EINTR) but merely doing that leads to a "can't read memory" error. gcc -g -c enummask.c then gdb enummask.o, then "p v". GDB complains about not being able to access memory location 0. -------------------- enummask.c enum mask { ANIMAL = 0, VEGETABLE = 1, MINERAL = 2, BASIC_CATEGORY = 3, WHITE = 0, BLUE = 4, GREEN = 8, BLACK = 0xc, COLOR = 0xc, ALIVE = 0x10, LARGE = 0x20 } v; If try to modify value in file with "set write off" should give appropriate error not "cannot access memory at address 0x65e0". Why do we allow a target to omit standard register names (NO_STD_REGS in tm-z8k.h)? I thought the standard register names were supposed to be just that, standard. Allow core file without exec file on RS/6000. Make sure "shell" with no arguments works right on DOS. Make gdb.ini (as well as .gdbinit) be checked on all platforms, so the same directory can be NFS-mounted on unix or DOS, and work the same way. cd ~/tmp/ causes infinite loop (where ~/tmp is a directory). Get SECT_OFF_TEXT stuff out of objfile_relocate (might be needed to get RS/6000 to work right, might not be immediately relevant). Clean up add_toc_to_loadinfo Think about attached processes and sharing terminal. John sez in reference to ignoring errors from tcsegpgrp if attach_flag: set_tty_state should not have any trouble with attached processes. Instead, the tty handling should leave the pgrp of the tty alone when attaching to processes (perhaps pass terminal_init_inferior a flag saying whether we're attaching). PAGE_SIZE redefined warnings on AIX. Probably should be using BFD_PAGE_SIZE throughout BFD. Rewrite proceed, wait_for_inferior, and normal_stop to clean them up. Suggestions: 1) Make each test in wait_for_inferior a seperate subroutine call. 2) Combine wait_for_inferior and normal_stop to clean up communication via global variables. 3) See if you can find some way to clean up the global variables that are used; possibly group them by data flow and information content? Work out some kind of way to allow running the inferior to be done as a sub-execution of, eg. breakpoint command lists. Currently running the inferior interupts any command list execution. This would require some rewriting of wait_for_inferior & friends, and hence should probably be done in concert with the above. Add function arguments to gdb user defined functions. Add convenience variables that refer to exec file, symbol file, selected frame source file, selected frame function, selected frame line number, etc. Add a "suspend" subcommand of the "continue" command to suspend gdb while continuing execution of the subprocess. Useful when you are debugging servers and you want to dodge out and initiate a connection to a server running under gdb. Add stab information to allow reasonable debugging of inline functions (possibly they should show up on a stack backtrace? With a note indicating that they weren't "real"?). Modify the naked "until" command to step until past the current source line, rather than past the current pc value. This is tricky simply because the low level routines have no way of specifying a multi-line step range, and there is no way of saying "don't print stuff when we stop" from above (otherwise could just call step many times). Modify the handling of symbols grouped through BINCL/EINCL stabs to allocate a partial symtab for each BINCL/EINCL grouping. This will seriously decrease the size of inter-psymtab dependencies and hence lessen the amount that needs to be read in when a new source file is accessed. Do an "x/i $pc" after each stepi or nexti. Modify all of the disassemblers to use printf_filtered to get correct more filtering. Modify gdb to work correctly with Pascal. Add a command for searching memory, a la adb. It specifies size, mask, value, start address. ADB searches until it finds it or hits an error (or is interrupted). Remove the range and type checking code and documentation, if not going to implement. # Local Variables: # mode: text # End: