* autoload.cc: New file keeping all autoload stuff.
* Makefile.in: Add autoload.o to dependencies.
* dcrt0.cc: Move all autoload stuff to autoload.cc.
* fhandler_mem.cc: Ditto.
* net.cc: Ditto.
* uinfo.cc: Ditto.
This commit is contained in:
Corinna Vinschen
@@ -13,7 +13,6 @@ details. */
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#include <stdlib.h>
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#include "glob.h"
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#include "exceptions.h"
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#include "autoload.h"
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#include <ctype.h>
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#include <limits.h>
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#include "sync.h"
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@@ -1103,184 +1102,3 @@ cygbench (const char *s)
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small_printf ("%05d ***** %s : %10d\n", GetCurrentProcessId (), s, strace.microseconds ());
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}
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#endif
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extern "C" {
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/* This struct is unused, but it illustrates the layout of a DLL
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information block. */
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struct DLLinfo
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{
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char jmpinst[4];
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HANDLE h;
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DWORD flag;
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char name[0];
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};
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/* FIXME: This is not thread-safe! */
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__asm__ ("
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msg1:
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.ascii \"couldn't dynamically determine load address for '%s' (handle %p), %E\\0\"
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.align 32
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noload:
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popl %edx # Get the address of the information block
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movl 8(%edx),%eax # Should we 'ignore' the lack
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test $1,%eax # of this function?
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jz 1f # Nope.
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decl %eax # Yes. This is the # of bytes + 1
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popl %edx # Caller's caller
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addl %eax,%esp # Pop off bytes
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xor %eax,%eax # Zero functional return
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jmp *%edx # Return
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1:
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movl 4(%edx),%eax # Handle value
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pushl (%eax)
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leal 12(%edx),%eax # Location of name of function
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push %eax
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push $msg1 # The message
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call ___api_fatal # Print message. Never returns
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.globl cygwin_dll_func_load
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cygwin_dll_func_load:
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movl (%esp),%eax # 'Return address' contains load info
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addl $12,%eax # Address of name of function to load
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pushl %eax # Second argument
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movl -8(%eax),%eax # Address of Handle to DLL
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pushl (%eax) # Handle to DLL
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call _GetProcAddress@8# Load it
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test %eax,%eax # Success?
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jne gotit # Yes
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jmp noload # Issue an error or return
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gotit:
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popl %ecx # Pointer to 'return address'
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movb $0xe0,-1(%ecx) # Turn preceding call to a jmp *%eax
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movl %eax,(%ecx) # Point dispatch to address loaded above
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jmp *%eax
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");
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LoadDLLinitfunc (user32)
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{
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HANDLE h;
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static NO_COPY LONG here = -1L;
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while (InterlockedIncrement (&here))
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{
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InterlockedDecrement (&here);
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Sleep (0);
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}
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if (user32_handle)
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/* nothing to do */;
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else if ((h = LoadLibrary ("user32.dll")) != NULL)
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user32_handle = h;
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else if (!user32_handle)
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api_fatal ("could not load user32.dll, %E");
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InterlockedDecrement (&here);
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return 0; /* Already done by another thread? */
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}
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LoadDLLinitfunc (advapi32)
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{
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HANDLE h;
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static NO_COPY LONG here = -1L;
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while (InterlockedIncrement (&here))
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{
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InterlockedDecrement (&here);
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Sleep (0);
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}
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if (advapi32_handle)
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/* nothing to do */;
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else if ((h = LoadLibrary ("advapi32.dll")) != NULL)
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advapi32_handle = h;
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else if (!advapi32_handle)
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api_fatal ("could not load advapi32.dll, %E");
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InterlockedDecrement (&here);
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return 0;
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}
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static void dummy_autoload (void) __attribute__ ((unused));
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static void
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dummy_autoload (void)
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{
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LoadDLLinit (user32)
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LoadDLLfunc (CharToOemBuffA, 12, user32)
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LoadDLLfunc (CloseClipboard, 0, user32)
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LoadDLLfunc (CreateWindowExA, 48, user32)
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LoadDLLfunc (DefWindowProcA, 16, user32)
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LoadDLLfunc (DispatchMessageA, 4, user32)
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LoadDLLfunc (FindWindowA, 8, user32)
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LoadDLLfunc (GetClipboardData, 4, user32)
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LoadDLLfunc (GetMessageA, 16, user32)
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LoadDLLfunc (GetProcessWindowStation, 0, user32)
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LoadDLLfunc (GetThreadDesktop, 4, user32)
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LoadDLLfunc (GetUserObjectInformationA, 20, user32)
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LoadDLLfunc (KillTimer, 8, user32)
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LoadDLLfunc (MessageBoxA, 16, user32)
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LoadDLLfunc (MsgWaitForMultipleObjects, 20, user32)
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LoadDLLfunc (OemToCharBuffA, 12, user32)
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LoadDLLfunc (OpenClipboard, 4, user32)
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LoadDLLfunc (PeekMessageA, 20, user32)
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LoadDLLfunc (PostMessageA, 16, user32)
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LoadDLLfunc (PostQuitMessage, 4, user32)
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LoadDLLfunc (RegisterClassA, 4, user32)
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LoadDLLfunc (SendMessageA, 16, user32)
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LoadDLLfunc (SetTimer, 16, user32)
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LoadDLLfunc (SetUserObjectSecurity, 12, user32)
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LoadDLLinit (advapi32)
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LoadDLLfunc (AddAccessAllowedAce, 16, advapi32)
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LoadDLLfunc (AddAccessDeniedAce, 16, advapi32)
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LoadDLLfunc (AddAce, 20, advapi32)
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LoadDLLfunc (AdjustTokenPrivileges, 24, advapi32)
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LoadDLLfunc (CopySid, 12, advapi32)
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LoadDLLfunc (CreateProcessAsUserA, 44, advapi32)
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LoadDLLfuncEx (CryptAcquireContextA, 20, advapi32, 1)
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LoadDLLfuncEx (CryptGenRandom, 12, advapi32, 1)
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LoadDLLfuncEx (CryptReleaseContext, 8, advapi32, 1)
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LoadDLLfunc (DeregisterEventSource, 4, advapi32)
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LoadDLLfunc (EqualSid, 8, advapi32)
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LoadDLLfunc (GetAce, 12, advapi32)
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LoadDLLfunc (GetFileSecurityA, 20, advapi32)
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LoadDLLfunc (GetLengthSid, 4, advapi32)
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LoadDLLfunc (GetSecurityDescriptorDacl, 16, advapi32)
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LoadDLLfunc (GetSecurityDescriptorGroup, 12, advapi32)
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LoadDLLfunc (GetSecurityDescriptorOwner, 12, advapi32)
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LoadDLLfunc (GetSidIdentifierAuthority, 4, advapi32)
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LoadDLLfunc (GetSidSubAuthority, 8, advapi32)
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LoadDLLfunc (GetSidSubAuthorityCount, 4, advapi32)
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LoadDLLfunc (GetTokenInformation, 20, advapi32)
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LoadDLLfunc (GetUserNameA, 8, advapi32)
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LoadDLLfunc (ImpersonateLoggedOnUser, 4, advapi32)
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LoadDLLfunc (InitializeAcl, 12, advapi32)
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LoadDLLfunc (InitializeSecurityDescriptor, 8, advapi32)
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LoadDLLfunc (InitializeSid, 12, advapi32)
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LoadDLLfunc (IsValidSid, 4, advapi32)
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LoadDLLfunc (LogonUserA, 24, advapi32)
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LoadDLLfunc (LookupAccountNameA, 28, advapi32)
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LoadDLLfunc (LookupAccountSidA, 28, advapi32)
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LoadDLLfunc (LookupPrivilegeValueA, 12, advapi32)
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LoadDLLfunc (MakeSelfRelativeSD, 12, advapi32)
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LoadDLLfunc (OpenProcessToken, 12, advapi32)
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LoadDLLfunc (RegCloseKey, 4, advapi32)
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LoadDLLfunc (RegCreateKeyExA, 36, advapi32)
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LoadDLLfunc (RegDeleteKeyA, 8, advapi32)
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LoadDLLfunc (RegDeleteValueA, 8, advapi32)
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LoadDLLfunc (RegLoadKeyA, 12, advapi32)
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LoadDLLfunc (RegEnumKeyExA, 32, advapi32)
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LoadDLLfunc (RegEnumValueA, 32, advapi32)
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LoadDLLfunc (RegOpenKeyExA, 20, advapi32)
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LoadDLLfunc (RegQueryValueExA, 24, advapi32)
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LoadDLLfunc (RegSetValueExA, 24, advapi32)
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LoadDLLfunc (RegisterEventSourceA, 8, advapi32)
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LoadDLLfunc (ReportEventA, 36, advapi32)
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LoadDLLfunc (RevertToSelf, 0, advapi32)
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LoadDLLfunc (SetKernelObjectSecurity, 12, advapi32)
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LoadDLLfunc (SetSecurityDescriptorDacl, 16, advapi32)
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LoadDLLfunc (SetSecurityDescriptorGroup, 12, advapi32)
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LoadDLLfunc (SetSecurityDescriptorOwner, 12, advapi32)
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}
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}
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