net-im/emesene/files/sys-devel/gcc/files/pro-police-docs.patch

   1 Index: gcc/doc/invoke.texi
   2 ===================================================================
   3 RCS file: /cvsroot/gcc/gcc/gcc/doc/invoke.texi,v
   4 retrieving revision 1.364
   5 diff -c -3 -p -r1.364 invoke.texi
   6 *** gcc/doc/invoke.texi 21 Nov 2003 11:42:58 -0000      1.364
   7 --- gcc/doc/invoke.texi 22 Nov 2003 08:12:35 -0000
   8 *************** in the following sections.
   9 *** 228,234 ****
  10   -Wno-multichar  -Wnonnull  -Wpacked  -Wpadded @gol
  11   -Wparentheses  -Wpointer-arith  -Wredundant-decls @gol
  12   -Wreturn-type  -Wsequence-point  -Wshadow @gol
  13 ! -Wsign-compare  -Wstrict-aliasing @gol
  14   -Wswitch  -Wswitch-default  -Wswitch-enum @gol
  15   -Wsystem-headers  -Wtrigraphs  -Wundef  -Wuninitialized @gol
  16   -Wunknown-pragmas  -Wunreachable-code @gol
  17 --- 228,234 ----
  18   -Wno-multichar  -Wnonnull  -Wpacked  -Wpadded @gol
  19   -Wparentheses  -Wpointer-arith  -Wredundant-decls @gol
  20   -Wreturn-type  -Wsequence-point  -Wshadow @gol
  21 ! -Wsign-compare  -Wstack-protector  -Wstrict-aliasing @gol
  22   -Wswitch  -Wswitch-default  -Wswitch-enum @gol
  23   -Wsystem-headers  -Wtrigraphs  -Wundef  -Wuninitialized @gol
  24   -Wunknown-pragmas  -Wunreachable-code @gol
  25 *************** in the following sections.
  26 *** 681,686 ****
  27 --- 681,687 ----
  28   -fshort-double  -fshort-wchar @gol
  29   -fverbose-asm  -fpack-struct  -fstack-check @gol
  30   -fstack-limit-register=@var{reg}  -fstack-limit-symbol=@var{sym} @gol
  31 + -fstack-protector  -fstack-protector-all @gol
  32   -fargument-alias  -fargument-noalias @gol
  33   -fargument-noalias-global  -fleading-underscore @gol
  34   -ftls-model=@var{model} @gol
  35 *************** effectively.  Often, the problem is that
  36 *** 3014,3019 ****
  37 --- 3015,3024 ----
  38   complex; GCC will refuse to optimize programs when the optimization
  39   itself is likely to take inordinate amounts of time.
  40
  41 + @item -Wstack-protector
  42 + @opindex Wstack-protector
  43 + Warn when not issuing stack smashing protection for some reason
  44 +
  45   @item -Werror
  46   @opindex Werror
  47   Make all warnings into errors.
  48 *************** and grows downwards, you can use the fla
  49 *** 11474,11479 ****
  50 --- 11479,11502 ----
  51   @option{-fstack-limit-symbol=__stack_limit} and
  52   @option{-Wl,--defsym,__stack_limit=0x7ffe0000} to enforce a stack limit
  53   of 128KB@.  Note that this may only work with the GNU linker.
  54 +
  55 + @item -fstack-protector
  56 + @item -fstack-protector-all
  57 + @opindex fstack-protector
  58 + @opindex fstack-protector-all
  59 + @opindex fno-stack-protector
  60 + Generate code to protect an application from a stack smashing
  61 + attack. The features are (1) the insertion of random value next to the
  62 + frame pointer to detect the integrity of the stack, (2) the reordering
  63 + of local variables to place buffers after pointers to avoid the
  64 + corruption of pointers that could be used to further corrupt arbitrary
  65 + memory locations, (3) the copying of pointers in function arguments to
  66 + an area preceding local variable buffers to prevent the corruption of
  67 + pointers that could be used to further corrupt arbitrary memory
  68 + locations, and the (4) omission of instrumentation code from some
  69 + functions to decrease the performance overhead.  If the integrity
  70 + would be broken, the program is aborted.  If no-stack-protector is
  71 + specified, instrumentation codes are generated at every functions.
  72
  73   @cindex aliasing of parameters
  74   @cindex parameters, aliased