From 494a66d9c5799091ccefcfd2f3d22226b16f4c38 Mon Sep 17 00:00:00 2001 From: Christopher Faylor Date: Tue, 29 Jan 2002 02:02:03 +0000 Subject: * external.cc (cygwin_internal): Initialize various internal settings if required to allow use of some things from user loaded DLL. (CW_STRACE_ON): Add new feature. (CW_CYGWIN_PID_TO_WINPID): Ditto. * pinfo.cc (set_myself): Call "strace.hello" to initiate possible strace session. (pinfo::init): Guard against dereferencing uninitialized myself. * sigproc.cc (wait_sig): Call strace.hello() when __SIGTRACE "signal" received. * strace.cc (strace::hello): New method. * wincap.cc (wincapc::init): Avoid initializing if already initialized. * wincap.h (wincapc::wincapc): New method. * include/sys/cygwin.h: Add new CW_ enums. Kludge typedefs of {g,u}id_t if required. * strace.h (strace::hello): Declare new method. --- winsup/cygwin/external.cc | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) (limited to 'winsup/cygwin/external.cc') diff --git a/winsup/cygwin/external.cc b/winsup/cygwin/external.cc index 1589e92a1..8a9f3bf9b 100644 --- a/winsup/cygwin/external.cc +++ b/winsup/cygwin/external.cc @@ -26,6 +26,8 @@ details. */ #include "path.h" #include "dtable.h" #include "cygheap.h" +#include "wincap.h" +#include "heap.h" static external_pinfo * fillout_pinfo (pid_t pid, int winpid) @@ -121,6 +123,16 @@ cygwin_internal (cygwin_getinfo_types t, ...) { va_list arg; va_start (arg, t); + if (t != CW_USER_DATA) + { + wincap.init (); + if (!myself) + { + memory_init (); + malloc_init (); + set_myself (1); + } + } switch (t) { @@ -194,6 +206,26 @@ cygwin_internal (cygwin_getinfo_types t, ...) # undef cr } + case CW_STRACE_ON: + { + pid_t pid = va_arg (arg, pid_t); + pinfo p (pid); + if (p) + { + sig_send (p, __SIGSTRACE); + return 0; + } + else + { + set_errno (ESRCH); + return (DWORD) -1; + } + } + case CW_CYGWIN_PID_TO_WINPID: + { + pinfo p (va_arg (arg, pid_t)); + return p ? p->dwProcessId : 0; + } default: return (DWORD) -1; } -- cgit v1.2.3