JehanneOS/newlib
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

* hinfo.cc (hinfo::linearize_fd_array): Make max_used_fd an int so that we can

Browse Source 
detect when there are no fds to pass.
* dcrt0.cc (host_dependent_constants::init): Revert Sat Mar 18 01:32:04 2000
change.
(dll_crt0_1): Set "cygwin_finished_initializing" flag.
(dll_crt0): Don't perform memcpy if uptr is already set to internal structure.
(_dll_crt0): Remember location of programs envptr.
* dll_init.h (per_module, dll, dll_list): Revamp.
* dll_init.cc: Revamp.  Use new classes.
* fork.cc (fork): Use new revamped dll, dll_list, and per_module stuff.
* environ.cc: Use __cygwin_environ throughout rather than the
user_data->envptr.
* exec.cc: Ditto.
* spawn.cc: Ditto.
* winsup.h: Declare update_envptrs, cygwin_finished_initializing.
* lib/_cygwin_crt0_common.cc (_cygwin_crt0_common): Revert previous change.
* lib/cygwin_attach_dll.cc (cygwin_attach_dll): Always pass in own per_process
structure or we end up overwriting information from the main program.
This commit is contained in:
Christopher Faylor
2000-07-15 02:48:11 +00:00
parent 44d2afed74
commit 2eb392bd77
13 changed files with 427 additions and 496 deletions
Download Patch File Download Diff File Expand all files Collapse all files

149
winsup/cygwin/dll_init.h
View File

@ -1,6 +1,6 @@
/* dll_init.h
Copyright 1998 Cygnus Solutions
Copyright 1998, 1999, 2000 Cygnus Solutions
This file is part of Cygwin.
@ -8,95 +8,84 @@ This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
//-----------------------------------------------------------------------------
// list of loaded DLL (used by fork & init)
class DllList
struct per_module
{
public:
static DllList& the ();
// return dll index used for freeDll
int recordDll (HMODULE, per_process*);
void detachDll (int dll_index);
// called after initialization of main module in dll_crt0
void initAll ();
// global destructors of loaded dlls
void doGlobalDestructorsOfDlls ();
// number of dlls dlopened
int numberOfOpenedDlls ();
// boolean to determine if forked process must reload dlls opened with
// LoadLibrary or dlopen ...
// default = 0 (FALSE)
int forkeeMustReloadDlls ();
void forkeeMustReloadDlls (int);
void forkeeLoadDlls ();
// set name of current library opened with dlopen
void currentDlOpenedLib (const char*);
char ***envptr;
void (**ctors)(void);
void (**dtors)(void);
void *data_start;
void *data_end;
void *bss_start;
void *bss_end;
int (*main)(int, char **, char **);
per_module &operator = (per_process *p)
{
envptr = p->envptr;
ctors = p->ctors;
dtors = p->dtors;
data_start = p->data_start;
data_end = p->data_end;
bss_start = p->bss_start;
bss_end = p->bss_end;
main = p->main;
return *this;
}
void run_ctors ();
void run_dtors ();
};
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
class DllListIterator
typedef enum
{
int _type;
int _index;
DLL_NONE,
DLL_LINK,
DLL_LOAD,
DLL_ANY
} dll_type;
protected:
DllListIterator (int type);
int index () const { return _index; }
public:
virtual ~DllListIterator();
int ok() { return _index!=-1; }
void operator++ ();
void operator++ (int) { operator++ (); }
operator per_process* ();
struct dll
{
struct dll *next, *prev;
per_module p;
HMODULE handle;
int count;
dll_type type;
int namelen;
char name[MAX_PATH + 1];
void detach ();
int init ();
};
//-----------------------------------------------------------------------------
#define MAX_DLL_BEFORE_INIT 100
class LinkedDllIterator : public DllListIterator
class dll_list
{
dll *end;
dll *hold;
dll_type hold_type;
public:
LinkedDllIterator ();
~LinkedDllIterator ();
dll start;
int tot;
int loaded_dlls;
int reload_on_fork;
dll *operator [] (const char *name);
dll *alloc (HINSTANCE, per_process *, dll_type);
void detach (dll *);
void init ();
void load_after_fork (HANDLE, dll *);
dll *istart (dll_type t)
{
hold_type = t;
hold = &start;
return inext ();
}
dll *inext ()
{
while ((hold = hold->next))
if (hold_type == DLL_ANY || hold->type == hold_type)
break;
return hold;
}
};
//-----------------------------------------------------------------------------
class LoadedDllIterator : public DllListIterator
{
public:
LoadedDllIterator ();
~LoadedDllIterator ();
};
//-----------------------------------------------------------------------------
#define DO_LINKED_DLL(var) \
{ \
LinkedDllIterator iterator; \
while (iterator.ok ()) \
{ \
per_process *var = (per_process *) iterator;
#define DO_LOADED_DLL(var) \
{ \
LoadedDllIterator iterator; \
while (iterator.ok ()) \
{ \
per_process *var = (per_process *) iterator;
#define DLL_DONE \
iterator++; \
} \
}
extern dll_list dlls;