stepping over an instruction that triggered a watchpoint.
* remote-mips.c: Numerous changes to support hardware breakpoints
and watchpoints on LSI MiniRISC and TinyRISC boards.
* mips-tdep.c: Move MIPS16-related macros to config/mips/tm-mips.h.
(mips_breakpoint_from_pc): Account for different breakpoint
instructions used by PMON and IDT monitor.
* config/mips/tm-embed.h: Enable hardware breakpoints on embedded
MIPS targets.
* config/mips/tm-mips.h: Define breakpoint instructions for
PMON and IDT monitor. Move MIPS16-related macros here from
mips-tdep.c.
(mips_initialize): LSI PMON doesn't support 'set regsize' command.
(pmon_wait): Don't need to exit and re-enter debug mode on LSI
PMON after a continue; it causes target program misbehavior.
(mips_fetch_register): Don't fetch unsupported registers; this
cuts down on wasted serial traffic.
(find_proc_desc): Move non-heuristic proc search code into separate
function.
(gdb_print_insn_mips): Use non-heuristic method to find procedure
descriptor, to avoid prologue examination when disassembling.
* remote-mips.c: Add support for new "lsi" target (LSI MiniRISC
aka MicroMeteor board).
(mips_exit_debug): Prevent protocol reinitialization if an error
occurs while exiting debug mode.
from being sent to 32-bit targets by masking off upper bits.
* mips-tdep.c (heuristic_proc_start): Mask off upper 32 bits
of PC on 32-bit targets.
(mips16_heuristic_proc_desc): Recognize 'addiu s1,sp,n' as a
frame setup instruction.
(mips32_heuristic_proc_desc): Fix warning found by gcc -Wall.
(mips16_skip_prologue): Recognize 'addiu s1,sp,n' as a valid
prologue instruction. Fix warnings and bugs found by gcc -Wall.
* buildsym.c (finish_block): Improve handling of overlapping blocks;
fixes problem on MIPS16 printing function arguments.
(mips_addr_bits_remove): Declare.
* mips-tdep.c (mips_push_dummy_frame): Fix heuristic-fence-post
errors when hitting breakpoints during inferior function calls
in 64-bit programs.
(fix_sign_extension): Make public, rename to mips_addr_bits_remove.
* utils.c (paddr_nz, preg_nz): New functions, similar to
paddr and preg but don't print leading zeroes.
* defs.h (paddr_nz, preg_nz): Declare.
* remote-mips.c: Use paddr_nz instead of paddr throughout
to reduce packet size.
(pmon_end_download): Improve timeout error handling.
config/mips/tm-mips.h: Add/fix bugs for 64-bit mips support.
* defs.h: Cleanup; add prototypess
* corefile.c: Change FIXME #ifdef
* win32-nat.c: Include windefs instead of windows.h.
* utils.c: Add routines for printing addresses and registers
based on type size.
* remote-mips.c: Provide support for CAIRO target board.
(cairo_open, cairo_ops): Added.
(mips_monitor_type): MON_CAIRO Added.
(mips_enter_debug, mips_exit_debug, mips_initialize,
mips_fetch_registers, common_breakpoint, mips_load,
_initialize_remote_mips): Updated.
Add simple support for NEC CAIRO Vr4300 development board.
* remote-mips.c (pmon_opn, pmon_wait, pmon_makeb64, pmon_zeroset,
pmon_checkset, pmon_make_fastrec, pmon_check_ack,
pmon_load_fast): New functions. Support for the PMON monitor world.
(common_open): New function to merge support for different monitors.
(mips_open): Use common_open().
(mips_send_command): New function.
(mips_send_packet): Scan out-of-sequence packets.
(mips_enter_debug, mips_exit_debug): New functions.
(pmon_ops): New target definition structure.
These changes provide the initial support for the PMON (3.0.83)
monitor that appears on the Cogent (CMA101) Vr4300 development
board. The changes do not affect the IDT monitor support, other than
in the area of dealing with out-of-sequence packets.
Jamie. Basically had case statement in the wrong place...
* (mips_load): Remove unnecessary `db tty0' command. It's all
handled by mips_initialize now.
monitor board.
The mips_initialize() code seemed to have a "funny" switch
statement. I also removed an unnecessary switch into debug monitor
mode just before the call to mips_initialize() in mips_load().
* fork-child.c (fork_inferior): Add call to
TARGET_CREATE_INFERIOR_HOOK to allow target specific code to get
control just before the new process executes it's first instruction.
* remote-mips.c (mips_initialize): Cleanup a bit. Don't try to
receive a packet at first. This speeds up initialization a lot.
Use TARGET_MONITOR_PROMPT instead of "<IDT>".
(common_breakpoint): Use rresponse instead of rerrflg to inspect
error code.
* symfile.c (syms_from_objfile reread_symbols): Call
TARGET_SYMFILE_POSTREAD to allow target specific code to get
control after reading new symbols.
* target.h: New macros TARGET_SYMFILE_POSTREAD, and
TARGET_CREATE_INFERIOR_HOOK. See above for descriptions.
* config/mips/{irix5.mh nm-irix5.h}: Delete nm-irix5.h. Make
NAT_FILE point directly at ../nm-sysv4.h.
* config/mips/{mipsm3.mh nm-m3.h}: Delete nm-m3.h. Make
NAT_FILE point directly at ../nm-m3.h.
* config/mips/{mipsv4.mh nm-sysv4.h}: Delete nm-sysv4.h. Make
NAT_FILE point directly at ../nm-sysv4.h.
* config/mips/nm-mips.h: Improve comment at top of file.
* config/mips/tm-mips.h (TARGET_MONITOR_PROMPT): Change
definition into a proper string.
start-sanitize-gm
* configure configure.in: Add support for --enable-gm.
(mips*-*-magic*): Change target from magic to idt.
* eval.c expprint.c expression.h parse.c remote-mips.c utils.c:
Change GENERAL_MAGIC_HACKS to GENERAL_MAGIC.
* magic.c magic.h: Update files from GM.
* config/mips/magic.mt: Delete. No longer necessary now that we
use --enable mechanism.
* config/mips/tm-idt.h: Add GM stuff needed for remote GM box.
* config/mips/tm-irix5.h: Add GM stuff needed for native Irix box.
* config/mips/tm-magic.h: Move up to config/tm-magic.h. Move all
platform specific stuff into tm-irix.h and tm-idt.h. Add defs for
TARGET_SYMFILE_POSTREAD and TARGET_CREATE_INFERIOR_HOOK.
end-sanitize-gm
around calls to create_longjmp_breakpoint. Why install the
breakpoints if we can't find the longjmp target?
* infrun.c (wait_for_inferior): Cleanup comments near call test.
* remote-mips.c: Fixed a bunch of prototypes to avoid char/int
complaint from picky compilers. Add comment to mips_expect.
Replace all instances of sr_get_debug with remote_debug.
* (mips_readchar): Don't jam init string to monitor.
mips_initialize() handles that.
* (mips_receive_header): Print better message when we get too
much garbage.
* (mips_request): Allow caller to pass in buff to allow them to
analyze the returned message.
* (mips_initialize): Re-do initialization to try sending a BREAK,
a ^C, and then a download escape sequence. Cleanup protocol
startup. Eliminate sleeps. Clear breakpoints (if using monitor
breakpoints). Re-init frame.
* (mips_detach): Close down target.
start-sanitize-gm
* (mips_resume): Pass signal down to target.
* (mips_create_inferior): Start target with TARGET_SIGNAL_PWR.
end-sanitize-gm
* (mips_wait): Handle return status with registers, or breakpoint stuff.
* (mips_kill): Add ^C handling.
* (mips_insert_breakpoint mips_remove_breakpoint): Call new
breakpoint stuff if enabled.
* (calculate_mask remote_mips_set_watchpoint
remote_mips_remove_watchpoint remote_mips_stopped_by_watchpoint):
Hardware watchpoint/breakpoint stuff.
* (common_breakpoint): Common code for new monitor breakpoint commands.
* (mips_load): Don't use `prompt'. It's a global variable.
* top.c (dont_repeat_command): New command for use in
user-defined commands to suppress auto-repeat (by hittin return key).
start-sanitize-gm
* utils.c (request_quit): Call target_kill here. Good idea.
Needs a better implementation.
end-sanitize-gm
* valops.c: Add start of auto function-call abandonment capability.
start-sanitize-gm
* c-exp.y: Add code (currently disabled) to handle GM dynamic
structures (it conflicts with @!).
* eval.c (evaluate_subexp_standard): ditto.
* expprint.c (print_subexp dump_expression): ditto.
* expression.h (enum exp_opcode): ditto.
* parse.c (length_of_subexp): ditto.
* configure, configure.in: Add mip*-*-magic* target.
* magic.c magic.h: Special routines to handle GM stuff (like
stepping through dispatcher).
end-sanitize-gm
spot different prompts at run-time, so as to avoid having target
specific versions of gdb. This is a pending TODO.
Fri Sep 1 08:25:50 1995 James G. Smith <jsmith@beauty.cygnus.com>
* configure (mips64*vr4300*-*-elf): Support added.
* remote-mips.c (mips_readchar): Change to allow build-time prompt
string.
* config/mips/tm-mips.h: Added TARGET_MONITOR_PROMPT.
* config/mips/{vr4300.mt, vr4300el.mt, tm-vr4300.h,
tm-vr4300el.h}: Added.
for `watchdog' variable. This allows the user to put an upper
limit on the amount of time that GDB will wait for the target to
return from a step or continue operation. This will primarily be
used for the testsuite, where it is difficult to come up with a
reasonable timeout for things like function calls, which can take
as long as three minutes under some circumstances. If the
watchdog timer expires, GDB will generate an error that looks like
`Watchdog has expired.', and will detach from the target.
* remote-mips.c (mips_open): Setup initial frame from target.
Print it out so that user is told where the program is stopped
when they attach.
* remote-nrom.c: Loads of cleanups. Use serial code to open
network connections. Use expect() to wait for response to
download command.
* ser-tcp.c (tcp_open): Retry connection if we get ECONNREFUSED.
* serial.c serial.h (serial_open serial_fdopen serial_close):
Allow users to open the same device multiple times. They all get
to share the same serial_t. This is about the only way to have
multiple active targets use the same device (for download and
debug).
* sparcl-tdep.c: Keep #include <unistd.h> away from GO32.
* target.c: Add `targetdebug' variable. If this is non-zero,
then a special target is put at the top of the target stack which
will cause all calls through the target vector to have their args
and results printed out.
remote-mips.c, remote-os9k.c, remote-st.c: Conditionalize use of
stdarg rather than varargs on ANSI_PROTOTYPES not __STDC__; it
must match the definition of PARAMS.
start-sanitize-gdbtk
* gdbtk.c: Likewise.
end-sanitize-gdbtk
New functions.
(mips_store_word): Change calling convention to return errors, and
to provide old contents if the caller wants it.
(mips_xfer_memory): Deal with errors from mips_store_word.
* config/mips/tm-idt.h, config/mips/tm-idtl.h: Remove BREAKPOINT
define now that remote-mips.c doesn't use BREAKPOINT.
