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| author | Руслан Ижбулатов <lrn1986@gmail.com> | 2016-07-23 11:38:03 +0300 |
|---|---|---|
| committer | Eli Zaretskii <eliz@gnu.org> | 2016-07-23 11:38:03 +0300 |
| commit | 463888ab6be549e8dcc9eac36dc07c1c237e2968 (patch) | |
| tree | 41ef8df68696e267f5f6d35a600e935d31767f2c /gdb/windows-nat.c | |
| parent | cac709756b00c57a375f40e032d2eb4f5dbd3804 (diff) | |
| download | gdb-463888ab6be549e8dcc9eac36dc07c1c237e2968.zip gdb-463888ab6be549e8dcc9eac36dc07c1c237e2968.tar.gz gdb-463888ab6be549e8dcc9eac36dc07c1c237e2968.tar.bz2 | |
Support JIT debugging on MS-Windows
gdb/ChangeLog:
2016-06-30 Руслан Ижбулатов <lrn1986@gmail.com>
PR gdb/14529
* windows-nat.c (signal_event_command): New command 'signal-event'
for W32 JIT debug support.
* NEWS: Add an entry about the new 'signal-event' command.
gdb/doc/ChangeLog:
2016-06-30 Руслан Ижбулатов <lrn1986@gmail.com>
* gdb.texinfo (Cygwin Native): Document the new 'signal-event'
command.
Diffstat (limited to 'gdb/windows-nat.c')
| -rw-r--r-- | gdb/windows-nat.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/gdb/windows-nat.c b/gdb/windows-nat.c index c95dc9a..3f67486 100644 --- a/gdb/windows-nat.c +++ b/gdb/windows-nat.c @@ -56,6 +56,7 @@ #include "solist.h" #include "solib.h" #include "xml-support.h" +#include "inttypes.h" #include "i386-tdep.h" #include "i387-tdep.h" @@ -825,6 +826,25 @@ windows_clear_solib (void) solib_end = &solib_start; } +static void +signal_event_command (char *args, int from_tty) +{ + uintptr_t event_id = 0; + char *endargs = NULL; + + if (args == NULL) + error (_("signal-event requires an argument (integer event id)")); + + event_id = strtoumax (args, &endargs, 10); + + if ((errno == ERANGE) || (event_id == 0) || (event_id > UINTPTR_MAX) || + ((HANDLE) event_id == INVALID_HANDLE_VALUE)) + error (_("Failed to convert `%s' to event id"), args); + + SetEvent ((HANDLE) event_id); + CloseHandle ((HANDLE) event_id); +} + /* Handle DEBUG_STRING output from child process. Cygwin prepends its messages with a "cygwin:". Interpret this as a Cygwin signal. Otherwise just print the string as a warning. */ @@ -2550,6 +2570,13 @@ _initialize_windows_nat (void) cygwin_internal (CW_SET_DOS_FILE_WARNING, 0); #endif + add_com ("signal-event", class_run, signal_event_command, _("\ +Signal a crashed process with event ID, to allow its debugging.\n\ +This command is needed in support of setting up GDB as JIT debugger on \ +MS-Windows. The command should be invoked from the GDB command line using \ +the '-ex' command-line option. The ID of the event that blocks the \ +crashed process will be supplied by the Windows JIT debugging mechanism.")); + #ifdef __CYGWIN__ add_setshow_boolean_cmd ("shell", class_support, &useshell, _("\ Set use of shell to start subprocess."), _("\ |