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Diffstat (limited to 'gdb/doc/gdbint.texinfo')
| -rw-r--r-- | gdb/doc/gdbint.texinfo | 78 |
1 files changed, 20 insertions, 58 deletions
diff --git a/gdb/doc/gdbint.texinfo b/gdb/doc/gdbint.texinfo index 7f51a3c112d..a0c0b4242d6 100644 --- a/gdb/doc/gdbint.texinfo +++ b/gdb/doc/gdbint.texinfo @@ -8,7 +8,7 @@ @ifinfo This file documents the internals of the GNU debugger @value{GDBN}. -Copyright 1990,1991,1992,1993,1994,1996,1998,1999,2000,2001,2002,2003 +Copyright 1990,1991,1992,1993,1994,1996,1998,1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc. Contributed by Cygnus Solutions. Written by John Gilmore. Second Edition by Stan Shebs. @@ -38,7 +38,7 @@ Free Documentation License''. @page @tex \def\$#1${{#1}} % Kluge: collect RCS revision info without $...$ -\xdef\manvers{\$Revision: 1.102.2.13 $} % For use in headers, footers too +\xdef\manvers{\$Revision: 1.102.2.14 $} % For use in headers, footers too {\parskip=0pt \hfill Cygnus Solutions\par \hfill \manvers\par @@ -48,7 +48,7 @@ Free Documentation License''. @vskip 0pt plus 1filll Copyright @copyright{} 1990,1991,1992,1993,1994,1996,1998,1999,2000,2001, - 2002, 2003 Free Software Foundation, Inc. + 2002, 2003, 2004 Free Software Foundation, Inc. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.1 or @@ -480,13 +480,6 @@ two macros can use them for their internal purposes. If the inferior has some watchpoint that triggered, return the address associated with that watchpoint. Otherwise, return zero. -@findex DECR_PC_AFTER_HW_BREAK -@item DECR_PC_AFTER_HW_BREAK -If defined, @value{GDBN} decrements the program counter by the value -of @code{DECR_PC_AFTER_HW_BREAK} after a hardware break-point. This -overrides the value of @code{DECR_PC_AFTER_BREAK} when a breakpoint -that breaks is a hardware-assisted breakpoint. - @findex HAVE_STEPPABLE_WATCHPOINT @item HAVE_STEPPABLE_WATCHPOINT If defined to a non-zero value, it is not necessary to disable a @@ -2245,12 +2238,6 @@ This macro is used as the argument to @code{lseek} (or, most commonly, @code{bfd_seek}). FIXME, should be replaced by SEEK_SET instead, which is the POSIX equivalent. -@item MMAP_BASE_ADDRESS -When using HAVE_MMAP, the first mapping should go at this address. - -@item MMAP_INCREMENT -when using HAVE_MMAP, this is the increment between mappings. - @item NORETURN If defined, this should be one or more tokens, such as @code{volatile}, that can be used in both the declaration and definition of functions to @@ -2264,37 +2251,6 @@ of functions to indicate that they never return. The default is already set correctly if compiling with GCC. This will almost never need to be defined. -@item USE_MMALLOC -@findex mmalloc -@value{GDBN} will use the @code{mmalloc} library for memory allocation -for symbol reading if this symbol is defined. Be careful defining it -since there are systems on which @code{mmalloc} does not work for some -reason. One example is the DECstation, where its RPC library can't -cope with our redefinition of @code{malloc} to call @code{mmalloc}. -When defining @code{USE_MMALLOC}, you will also have to set -@code{MMALLOC} in the Makefile, to point to the @code{mmalloc} library. This -define is set when you configure with @samp{--with-mmalloc}. - -@item NO_MMCHECK -@findex mmcheck -Define this if you are using @code{mmalloc}, but don't want the overhead -of checking the heap with @code{mmcheck}. Note that on some systems, -the C runtime makes calls to @code{malloc} prior to calling @code{main}, and if -@code{free} is ever called with these pointers after calling -@code{mmcheck} to enable checking, a memory corruption abort is certain -to occur. These systems can still use @code{mmalloc}, but must define -@code{NO_MMCHECK}. - -@item MMCHECK_FORCE -Define this to 1 if the C runtime allocates memory prior to -@code{mmcheck} being called, but that memory is never freed so we don't -have to worry about it triggering a memory corruption abort. The -default is 0, which means that @code{mmcheck} will only install the heap -checking functions if there has not yet been any memory allocation -calls, and if it fails to install the functions, @value{GDBN} will issue a -warning. This is currently defined if you configure using -@samp{--with-mmalloc}. - @item NO_SIGINTERRUPT @findex siginterrupt Define this to indicate that @code{siginterrupt} is not available. @@ -3161,10 +3117,6 @@ Define this to be the amount by which to decrement the PC after the program encounters a breakpoint. This is often the number of bytes in @code{BREAKPOINT}, though not always. For most targets this value will be 0. -@item DECR_PC_AFTER_HW_BREAK -@findex DECR_PC_AFTER_HW_BREAK -Similarly, for hardware breakpoints. - @item DISABLE_UNSETTABLE_BREAK (@var{addr}) @findex DISABLE_UNSETTABLE_BREAK If defined, this should evaluate to 1 if @var{addr} is in a shared @@ -3715,13 +3667,6 @@ be the number (greater than or equal to zero) of that register. This should only need to be defined if @code{TARGET_READ_PC} and @code{TARGET_WRITE_PC} are not defined. -@item DEPRECATED_NPC_REGNUM -@findex DEPRECATED_NPC_REGNUM -The number of the ``next program counter'' register, if defined. - -@code{DEPRECATED_NPC_REGNUM} has been replaced by @code{TARGET_WRITE_PC} -(@pxref{TARGET_WRITE_PC}). - @item PARM_BOUNDARY @findex PARM_BOUNDARY If non-zero, round arguments to a boundary of this many bits before @@ -5132,6 +5077,23 @@ This warning includes uses of the assignment operator within an @item -Wpointer-arith @item -Wuninitialized + +@item -Wunused-label +This warning has the additional benefit of detecting the absence of the +@code{case} reserved word in a switch statement: +@smallexample +enum @{ FD_SCHEDULED, NOTHING_SCHEDULED @} sched; +@dots{} +switch (sched) + @{ + case FD_SCHEDULED: + @dots{}; + break; + NOTHING_SCHEDULED: + @dots{}; + break; + @} +@end smallexample @end table @emph{Pragmatics: Due to the way that @value{GDBN} is implemented most |