* autoload.cc (noload): Use proper method for multiline strings or newer gcc's
complain. * exceptions.cc (unused_sig_wrapper): Ditto. * fhandler.h (fhandler_base): Make get_io_handle and friends return self. * fhandler_tty.cc (fhandler_pty_common::close_on_exec): Accomodate DEBUGGING flag to avoid spurious warnings when inheritance is set.
This commit is contained in:
Christopher Faylor
parent
7cf3b655ec
commit
2116a17508
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@ -1,3 +1,13 @@
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Sat Mar 10 20:54:47 2001 Christopher Faylor <cgf@cygnus.com>
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* autoload.cc (noload): Use proper method for multiline strings or
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newer gcc's complain.
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* exceptions.cc (unused_sig_wrapper): Ditto.
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* fhandler.h (fhandler_base): Make get_io_handle and friends return
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self.
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* fhandler_tty.cc (fhandler_pty_common::close_on_exec): Accomodate
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DEBUGGING flag to avoid spurious warnings when inheritance is set.
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Sat Mar 10 16:52:12 2001 Christopher Faylor <cgf@cygnus.com>
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* shortcut.c (PATH_ALL_EXEC): Add parentheses to avoid a compiler
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@ -24,45 +24,45 @@ struct DLLinfo
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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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__asm__ ("\n\
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msg1:\n\
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.ascii \"couldn't dynamically determine load address for '%s' (handle %p), %E\\0\"\n\
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\n\
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.align 32\n\
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noload:\n\
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popl %edx # Get the address of the information block\n\
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movl 8(%edx),%eax # Should we 'ignore' the lack\n\
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test $1,%eax # of this function?\n\
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jz 1f # Nope.\n\
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decl %eax # Yes. This is the # of bytes + 1\n\
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popl %edx # Caller's caller\n\
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addl %eax,%esp # Pop off bytes\n\
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xor %eax,%eax # Zero functional return\n\
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jmp *%edx # Return\n\
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1:\n\
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movl 4(%edx),%eax # Handle value\n\
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pushl (%eax)\n\
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leal 12(%edx),%eax # Location of name of function\n\
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push %eax\n\
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push $msg1 # The message\n\
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call ___api_fatal # Print message. Never returns\n\
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\n\
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.globl cygwin_dll_func_load\n\
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cygwin_dll_func_load:\n\
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movl (%esp),%eax # 'Return address' contains load info\n\
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addl $12,%eax # Address of name of function to load\n\
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pushl %eax # Second argument\n\
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movl -8(%eax),%eax # Address of Handle to DLL\n\
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pushl (%eax) # Handle to DLL\n\
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call _GetProcAddress@8# Load it\n\
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test %eax,%eax # Success?\n\
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jne gotit # Yes\n\
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jmp noload # Issue an error or return\n\
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gotit:\n\
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popl %ecx # Pointer to 'return address'\n\
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movb $0xe0,-1(%ecx) # Turn preceding call to a jmp *%eax\n\
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movl %eax,(%ecx) # Point dispatch to address loaded above\n\
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jmp *%eax\n\
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");
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LoadDLLinitfunc (advapi32)
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@ -1144,69 +1144,69 @@ void unused_sig_wrapper ()
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prototype signal handlers as __stdcall), calls _set_process_mask
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to restore any mask, restores any potentially clobbered registers
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and returns to original caller. */
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__asm__ volatile ("
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.text
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_sigreturn:
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addl $4,%%esp # Remove argument
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movl %%esp,%%ebp
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addl $36,%%ebp
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cmpl $0,%4 # Did a signal come in?
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jz 1f # No, if zero
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call _call_signal_handler@0 # yes handle the signal
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# FIXME: There is a race here. The signal handler could set up
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# the sigsave structure between _call_signal_handler and the
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# end of _set_process_mask. This would make cygwin detect an
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# incorrect signal mask.
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1: call _set_process_mask@4
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popl %%eax # saved errno
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testl %%eax,%%eax # Is it < 0
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jl 2f # yup. ignore it
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movl %1,%%ebx
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movl %%eax,(%%ebx)
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2: popl %%eax
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popl %%ebx
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popl %%ecx
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popl %%edx
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popl %%edi
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popl %%esi
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popf
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popl %%ebp
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ret
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__no_sig_start:
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_sigdelayed:
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pushl %2 # original return address
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_sigdelayed0:
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pushl %%ebp
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movl %%esp,%%ebp
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pushf
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pushl %%esi
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pushl %%edi
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pushl %%edx
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pushl %%ecx
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pushl %%ebx
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pushl %%eax
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pushl %7 # saved errno
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pushl %3 # oldmask
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pushl %4 # signal argument
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pushl $_sigreturn
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call _reset_signal_arrived@0
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pushl %5 # signal number
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movl $0,%0 # zero the signal number as a
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# flag to the signal handler thread
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# that it is ok to set up sigsave
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pushl %8
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call _set_process_mask@4
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popl %%eax
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jmp *%%eax
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__no_sig_end:
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__asm__ volatile ("\n\
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.text\n\
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\n\
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_sigreturn:\n\
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addl $4,%%esp # Remove argument\n\
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movl %%esp,%%ebp\n\
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addl $36,%%ebp\n\
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\n\
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cmpl $0,%4 # Did a signal come in?\n\
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jz 1f # No, if zero\n\
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call _call_signal_handler@0 # yes handle the signal\n\
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\n\
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# FIXME: There is a race here. The signal handler could set up\n\
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# the sigsave structure between _call_signal_handler and the\n\
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# end of _set_process_mask. This would make cygwin detect an\n\
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# incorrect signal mask.\n\
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\n\
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1: call _set_process_mask@4\n\
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popl %%eax # saved errno\n\
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testl %%eax,%%eax # Is it < 0\n\
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jl 2f # yup. ignore it\n\
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movl %1,%%ebx\n\
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movl %%eax,(%%ebx)\n\
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2: popl %%eax\n\
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popl %%ebx\n\
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popl %%ecx\n\
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popl %%edx\n\
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popl %%edi\n\
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popl %%esi\n\
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popf\n\
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popl %%ebp\n\
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ret\n\
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\n\
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__no_sig_start:\n\
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_sigdelayed:\n\
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pushl %2 # original return address\n\
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_sigdelayed0:\n\
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pushl %%ebp\n\
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movl %%esp,%%ebp\n\
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pushf\n\
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pushl %%esi\n\
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pushl %%edi\n\
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pushl %%edx\n\
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pushl %%ecx\n\
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pushl %%ebx\n\
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pushl %%eax\n\
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pushl %7 # saved errno\n\
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pushl %3 # oldmask\n\
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pushl %4 # signal argument\n\
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pushl $_sigreturn\n\
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\n\
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call _reset_signal_arrived@0\n\
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pushl %5 # signal number\n\
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movl $0,%0 # zero the signal number as a\n\
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# flag to the signal handler thread\n\
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# that it is ok to set up sigsave\n\
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\n\
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pushl %8\n\
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call _set_process_mask@4\n\
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popl %%eax\n\
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jmp *%%eax\n\
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__no_sig_end:\n\
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\n\
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" : "=m" (sigsave.sig) : "m" (&_impure_ptr->_errno),
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"g" (sigsave.retaddr), "g" (sigsave.oldmask), "g" (sigsave.sig),
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"g" (sigsave.func), "o" (pid_offset), "g" (sigsave.saved_errno), "g" (sigsave.newmask)
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@ -317,9 +317,9 @@ public:
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/* Virtual accessor functions to hide the fact
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that some fd's have two handles. */
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virtual HANDLE get_handle () const { return io_handle; }
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virtual HANDLE get_io_handle () const { return io_handle; }
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virtual HANDLE get_output_handle () const { return io_handle; }
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virtual HANDLE& get_handle () { return io_handle; }
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virtual HANDLE& get_io_handle () { return io_handle; }
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virtual HANDLE& get_output_handle () { return io_handle; }
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virtual BOOL hit_eof () {return FALSE;}
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virtual select_record *select_read (select_record *s);
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virtual select_record *select_write (select_record *s);
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@ -347,7 +347,7 @@ private:
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public:
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fhandler_socket (const char *name = 0);
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~fhandler_socket ();
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int get_socket () const { return (int) get_handle(); }
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int get_socket () { return (int) get_handle(); }
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fhandler_socket * is_socket () { return this; }
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int write (const void *ptr, size_t len);
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int read (void *ptr, size_t len);
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@ -570,7 +570,7 @@ public:
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{
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// nothing to do
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}
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HANDLE get_output_handle () const { return output_handle; }
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HANDLE& get_output_handle () { return output_handle; }
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int line_edit (const char *rptr, int nread, int always_accept = 0);
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void set_output_handle (HANDLE h) { output_handle = h; }
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void tcinit (tty_min *this_tc, int force = FALSE);
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@ -1,6 +1,6 @@
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/* fhandler_tty.cc
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Copyright 1997, 1998, 2000 Cygnus Solutions.
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Copyright 1997, 1998, 2000, 2001 Red Hat, Inc.
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This file is part of Cygwin.
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@ -144,7 +144,7 @@ fhandler_tty_common::__release_output_mutex (const char *fn, int ln)
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if (osi > 0)
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osi--;
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termios_printf ("released at %s:%d, osi %d", fn, ln, osi);
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termios_printf(" for %s:%d (%s)", ostack[osi].fn, ostack[osi].ln, ostack[osi].tname);
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termios_printf (" for %s:%d (%s)", ostack[osi].fn, ostack[osi].ln, ostack[osi].tname);
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ostack[osi].ln = -ln;
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#endif
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}
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@ -173,7 +173,7 @@ fhandler_pty_master::accept_input ()
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n = get_ttyp ()->read_retval = eat_readahead (-1);
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if ( n != 0 )
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if (n != 0)
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{
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termios_printf ("about to write %d chars to slave", n);
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rc = WriteFile (get_output_handle (), rabuf, n, &written, NULL);
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@ -411,21 +411,21 @@ process_ioctl (void *)
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/**********************************************************************/
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/* Tty slave stuff */
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fhandler_tty_slave::fhandler_tty_slave(int num, const char *name) :
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fhandler_tty_slave::fhandler_tty_slave (int num, const char *name) :
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fhandler_tty_common (FH_TTYS, name, num)
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{
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set_cb (sizeof *this);
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ttynum = num;
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/* FIXME: This is wasteful. We should rewrite the set_name path to eliminate the
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need for double allocates. */
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unix_path_name_ = (char *) crealloc (unix_path_name_, strlen(win32_path_name_) + 1);
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unix_path_name_ = (char *) crealloc (unix_path_name_, strlen (win32_path_name_) + 1);
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strcpy (unix_path_name_, win32_path_name_);
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unix_path_name_[0] = unix_path_name_[4] = '/';
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debug_printf ("unix '%s', win32 '%s'", unix_path_name_, win32_path_name_);
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inuse = NULL;
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}
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fhandler_tty_slave::fhandler_tty_slave(const char *name) :
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fhandler_tty_slave::fhandler_tty_slave (const char *name) :
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fhandler_tty_common (FH_TTYS, name, 0)
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{
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set_cb (sizeof *this);
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@ -452,13 +452,13 @@ fhandler_tty_slave::open (const char *, int flags, mode_t)
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__small_sprintf (buf, OUTPUT_DONE_EVENT, ttynum);
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output_done_event = OpenEvent (EVENT_ALL_ACCESS, TRUE, buf);
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|
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if (!(output_mutex = get_ttyp()->open_output_mutex (TRUE)))
|
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if (!(output_mutex = get_ttyp ()->open_output_mutex (TRUE)))
|
||||
{
|
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termios_printf ("open output mutex failed, %E");
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__seterrno ();
|
||||
return 0;
|
||||
}
|
||||
if (!(input_mutex = get_ttyp()->open_input_mutex (TRUE)))
|
||||
if (!(input_mutex = get_ttyp ()->open_input_mutex (TRUE)))
|
||||
{
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termios_printf ("open input mutex failed, %E");
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||||
__seterrno ();
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||||
|
|
@ -500,7 +500,7 @@ fhandler_tty_slave::open (const char *, int flags, mode_t)
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get_ttyp ()->master_pid);
|
||||
if (tty_owner == NULL)
|
||||
{
|
||||
termios_printf ("can't open tty(%d) handle process %d",
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termios_printf ("can't open tty (%d) handle process %d",
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||||
ttynum, get_ttyp ()->master_pid);
|
||||
__seterrno ();
|
||||
return 0;
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||||
|
|
@ -529,7 +529,7 @@ fhandler_tty_slave::open (const char *, int flags, mode_t)
|
|||
ProtectHandle1 (nh, to_pty);
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||||
CloseHandle (tty_owner);
|
||||
|
||||
termios_printf("tty%d opened", ttynum);
|
||||
termios_printf ("tty%d opened", ttynum);
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
|
@ -555,7 +555,7 @@ fhandler_tty_slave::write (const void *ptr, size_t len)
|
|||
{
|
||||
DWORD n, towrite = len;
|
||||
|
||||
termios_printf("tty%d, write(%x, %d)", ttynum, ptr, len);
|
||||
termios_printf ("tty%d, write(%x, %d)", ttynum, ptr, len);
|
||||
|
||||
acquire_output_mutex (INFINITE);
|
||||
|
||||
|
|
@ -597,7 +597,7 @@ fhandler_tty_slave::write (const void *ptr, size_t len)
|
|||
DWORD rc;
|
||||
DWORD x = n * 1000;
|
||||
rc = WaitForSingleObject (output_done_event, x);
|
||||
termios_printf("waited %d ms for output_done_event, WFSO %d", x, rc);
|
||||
termios_printf ("waited %d ms for output_done_event, WFSO %d", x, rc);
|
||||
}
|
||||
}
|
||||
release_output_mutex ();
|
||||
|
|
@ -627,9 +627,9 @@ fhandler_tty_slave::read (void *ptr, size_t len)
|
|||
if (vmin < 0) vmin = 0;
|
||||
if (vtime < 0) vtime = 0;
|
||||
if (vmin == 0)
|
||||
time_to_wait = INFINITE;
|
||||
time_to_wait = INFINITE;
|
||||
else
|
||||
time_to_wait = (vtime == 0 ? INFINITE : 10 * vtime);
|
||||
time_to_wait = (vtime == 0 ? INFINITE : 10 * vtime);
|
||||
}
|
||||
else
|
||||
time_to_wait = INFINITE;
|
||||
|
|
@ -641,58 +641,58 @@ fhandler_tty_slave::read (void *ptr, size_t len)
|
|||
{
|
||||
rc = WaitForMultipleObjects (2, w4, FALSE, time_to_wait);
|
||||
if (rc == WAIT_OBJECT_0)
|
||||
{
|
||||
/* if we've recieved signal after successfully reading some data,
|
||||
just return all data successfully read */
|
||||
if (totalread > 0)
|
||||
break;
|
||||
set_sig_errno (EINTR);
|
||||
return -1;
|
||||
}
|
||||
{
|
||||
/* if we've recieved signal after successfully reading some data,
|
||||
just return all data successfully read */
|
||||
if (totalread > 0)
|
||||
break;
|
||||
set_sig_errno (EINTR);
|
||||
return -1;
|
||||
}
|
||||
else if (rc == WAIT_FAILED)
|
||||
{
|
||||
termios_printf ("wait for input event failed, %E");
|
||||
break;
|
||||
}
|
||||
{
|
||||
termios_printf ("wait for input event failed, %E");
|
||||
break;
|
||||
}
|
||||
else if (rc == WAIT_TIMEOUT)
|
||||
break;
|
||||
break;
|
||||
rc = WaitForSingleObject (input_mutex, 1000);
|
||||
if (rc == WAIT_FAILED)
|
||||
{
|
||||
termios_printf ("wait for input mutex failed, %E");
|
||||
break;
|
||||
}
|
||||
{
|
||||
termios_printf ("wait for input mutex failed, %E");
|
||||
break;
|
||||
}
|
||||
else if (rc == WAIT_TIMEOUT)
|
||||
{
|
||||
termios_printf ("failed to acquire input mutex after input event arrived");
|
||||
break;
|
||||
}
|
||||
{
|
||||
termios_printf ("failed to acquire input mutex after input event arrived");
|
||||
break;
|
||||
}
|
||||
if (!PeekNamedPipe (get_handle (), NULL, 0, NULL, &bytes_in_pipe, NULL))
|
||||
{
|
||||
termios_printf ("PeekNamedPipe failed, %E");
|
||||
_raise (SIGHUP);
|
||||
bytes_in_pipe = 0;
|
||||
_raise (SIGHUP);
|
||||
bytes_in_pipe = 0;
|
||||
}
|
||||
readlen = min (bytes_in_pipe, min (len, sizeof (buf)));
|
||||
if ( readlen )
|
||||
{
|
||||
termios_printf ("reading %d bytes (vtime %d)", readlen, vtime);
|
||||
if (ReadFile (get_handle (), buf, readlen, &n, NULL) == FALSE)
|
||||
{
|
||||
if (readlen)
|
||||
{
|
||||
termios_printf ("reading %d bytes (vtime %d)", readlen, vtime);
|
||||
if (ReadFile (get_handle (), buf, readlen, &n, NULL) == FALSE)
|
||||
{
|
||||
termios_printf ("read failed, %E");
|
||||
_raise (SIGHUP);
|
||||
}
|
||||
if (n)
|
||||
{
|
||||
len -= n;
|
||||
totalread += n;
|
||||
memcpy (ptr, buf, n);
|
||||
ptr = (char *) ptr + n;
|
||||
}
|
||||
}
|
||||
if (n)
|
||||
{
|
||||
len -= n;
|
||||
totalread += n;
|
||||
memcpy (ptr, buf, n);
|
||||
ptr = (char *) ptr + n;
|
||||
}
|
||||
}
|
||||
|
||||
if (readlen != bytes_in_pipe)
|
||||
SetEvent (input_available_event);
|
||||
SetEvent (input_available_event);
|
||||
|
||||
ReleaseMutex (input_mutex);
|
||||
|
||||
|
|
@ -707,18 +707,18 @@ fhandler_tty_slave::read (void *ptr, size_t len)
|
|||
termios_printf ("saw EOF");
|
||||
break;
|
||||
}
|
||||
if ( get_ttyp ()->ti.c_lflag & ICANON ||
|
||||
get_flags () & (O_NONBLOCK | O_NDELAY))
|
||||
if (get_ttyp ()->ti.c_lflag & ICANON ||
|
||||
get_flags () & (O_NONBLOCK | O_NDELAY))
|
||||
break;
|
||||
if (totalread >= vmin && (vmin > 0 || totalread > 0))
|
||||
break;
|
||||
break;
|
||||
|
||||
/* vmin == 0 && vtime == 0:
|
||||
/* vmin == 0 && vtime == 0:
|
||||
* we've already read all input, if any, so return immediately
|
||||
* vmin == 0 && vtime > 0:
|
||||
* we've waited for input 10*vtime ms in WFSO(input_available_event),
|
||||
* no matter whether any input arrived, we shouldn't wait any longer,
|
||||
* so return immediately
|
||||
* so return immediately
|
||||
* vmin > 0 && vtime == 0:
|
||||
* here, totalread < vmin, so continue waiting until more data
|
||||
* arrive
|
||||
|
|
@ -728,7 +728,8 @@ fhandler_tty_slave::read (void *ptr, size_t len)
|
|||
* so "restart timer" and wait until more data arrive
|
||||
*/
|
||||
|
||||
if (vmin == 0) break;
|
||||
if (vmin == 0)
|
||||
break;
|
||||
}
|
||||
termios_printf ("%d=read(%x, %d)", totalread, ptr, len);
|
||||
return totalread;
|
||||
|
|
@ -861,8 +862,8 @@ fhandler_tty_slave::ioctl (unsigned int cmd, void *arg)
|
|||
myself->ctty == ttynum && (get_ttyp ()->ti.c_lflag & TOSTOP))
|
||||
{
|
||||
/* background process */
|
||||
termios_printf("bg ioctl pgid %d, tpgid %d, ctty %d",
|
||||
myself->pgid, get_ttyp ()->getpgid (), myself->ctty);
|
||||
termios_printf ("bg ioctl pgid %d, tpgid %d, ctty %d",
|
||||
myself->pgid, get_ttyp ()->getpgid (), myself->ctty);
|
||||
_raise (SIGTTOU);
|
||||
}
|
||||
|
||||
|
|
@ -1070,7 +1071,15 @@ fhandler_pty_master::ptsname (void)
|
|||
void
|
||||
fhandler_tty_common::set_close_on_exec (int val)
|
||||
{
|
||||
#ifndef DEBUGGING
|
||||
this->fhandler_base::set_close_on_exec (val);
|
||||
#else
|
||||
/* FIXME: This is a duplication from fhandler_base::set_close_on_exec.
|
||||
It is here because we need to specify the "from_pty" stuff here or
|
||||
we'll get warnings from ForceCloseHandle when debugging. */
|
||||
set_inheritance (get_io_handle (), val, "from_pty");
|
||||
set_close_on_exec_flag (val);
|
||||
#endif
|
||||
if (output_done_event)
|
||||
set_inheritance (output_done_event, val);
|
||||
if (ioctl_request_event)
|
||||
|
|
@ -1082,7 +1091,7 @@ fhandler_tty_common::set_close_on_exec (int val)
|
|||
set_inheritance (output_mutex, val, "output_mutex");
|
||||
set_inheritance (input_mutex, val, "input_mutex");
|
||||
set_inheritance (input_available_event, val);
|
||||
set_inheritance (output_handle, val);
|
||||
set_inheritance (output_handle, val, "to_pty");
|
||||
}
|
||||
|
||||
void
|
||||
|
|
|
|||
Loading…
Reference in New Issue