toplev.c (flag_exceptions): Default to 0.
* toplev.c (flag_exceptions): Default to 0. (compile_file): Remove flag_exceptions == 2 hack. (main): Call lang_init_options. * tree.h: Declare it. * c-lang.c: Implement it. * objc/objc-act.c: Likewise. From-SVN: r20274
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@ -1,3 +1,12 @@
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Sun Jun 7 14:02:58 1998 Richard Henderson <rth@cygnus.com>
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* toplev.c (flag_exceptions): Default to 0.
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(compile_file): Remove flag_exceptions == 2 hack.
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(main): Call lang_init_options.
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* tree.h: Declare it.
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* c-lang.c: Implement it.
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* objc/objc-act.c: Likewise.
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Sun Jun 7 12:27:30 1998 David Edelsohn <edelsohn@mhpcc.edu>
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* rs6000.md (restore_stack_block): Generate MEM and specify mode.
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@ -1945,7 +1954,7 @@ Sun May 3 23:57:25 1998 Robert Lipe <robertl@dgii.com>
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(xm_defines): Add USG so dbxout will build.
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* configure: Regenerate.
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Sun May 3 13:51:34 PDT 1998 Richard Henerson <rth@cygnus.com>
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Sun May 3 13:51:34 PDT 1998 Richard Henderson <rth@cygnus.com>
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Support for official Sparc V9 ABI:
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* sparc.c (sparc_override_options): Force stack bias off for !arch64.
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@ -6,6 +6,10 @@ time as we can formally start documenting the interface this file will
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serve as a repository for information on these interface and any incompatable
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changes we've made.
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Jun 7, 1998:
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Front-ends must now define lang_init_options. It is safe for this
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function to do nothing. See c-lang.c.
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Apr 21, 1998:
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Front ends which link with c-common or other files from the C/C++
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front-ends may need to handle TI types. Look for references to
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@ -37,6 +37,11 @@ lang_decode_option (p)
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return c_decode_option (p);
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}
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void
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lang_init_options ()
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{
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}
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void
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lang_init ()
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{
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@ -580,6 +580,11 @@ generate_struct_by_value_array ()
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exit (0);
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}
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void
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lang_init_options ()
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{
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}
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void
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lang_init ()
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{
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27
gcc/toplev.c
27
gcc/toplev.c
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@ -598,7 +598,7 @@ int flag_pic;
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/* Nonzero means generate extra code for exception handling and enable
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exception handling. */
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int flag_exceptions = 2;
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int flag_exceptions;
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/* Nonzero means don't place uninitialized global data in common storage
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by default. */
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@ -2416,32 +2416,10 @@ compile_file (name)
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input_file_stack->next = 0;
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input_file_stack->name = input_filename;
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/* Gross. Gross. lang_init is (I think) the first callback into
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the language front end, and is thus the first opportunity to
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have the selected language override the default value for any
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-f option.
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So the default value for flag_exceptions is 2 (uninitialized).
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If we encounter -fno-exceptions or -fexceptions, then flag_exceptions
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will be set to zero or one respectively.
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flag_exceptions can also be set by lang_init to something other
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than the default "uninitialized" value of 2.
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After lang_init, if the value is still 2, then we default to
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-fno-exceptions (value will be reset to zero).
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When our EH mechanism is low enough overhead that we can enable
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it by default for languages other than C++, then all this braindamage
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will go away. */
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/* Perform language-specific initialization.
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This may set main_input_filename. */
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lang_init ();
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if (flag_exceptions == 2)
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flag_exceptions = 0;
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/* If the input doesn't start with a #line, use the input name
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as the official input file name. */
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if (main_input_filename == 0)
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@ -3775,6 +3753,9 @@ main (argc, argv, envp)
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flag_short_enums = DEFAULT_SHORT_ENUMS;
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#endif
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/* Perform language-specific options intialization. */
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lang_init_options ();
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/* Scan to see what optimization level has been specified. That will
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determine the default value of many flags. */
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for (i = 1; i < argc; i++)
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@ -1942,6 +1942,9 @@ extern void dwarf2out_end_epilogue PROTO((void));
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/* The language front-end must define these functions. */
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/* Function of no arguments for initializing options. */
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extern void lang_init_options PROTO((void));
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/* Function of no arguments for initializing lexical scanning. */
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extern void init_lex PROTO((void));
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/* Function of no arguments for initializing the symbol table. */
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