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| author | nickc <nickc@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-10-03 16:12:22 +0000 |
|---|---|---|
| committer | nickc <nickc@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-10-03 16:12:22 +0000 |
| commit | 6a47b36023f66cc83d1d3ee4f9ac491d358100ad (patch) | |
| tree | 46ee8015faaeb50c30f8914640d00b5c20e6d402 /gcc/doc | |
| parent | f3c0d3e63d1a91c7d646f556216eb22dfdd81292 (diff) | |
| download | gcc-6a47b36023f66cc83d1d3ee4f9ac491d358100ad.tar.gz | |
* config/rx/rx.c (struct decl_chain): New local structure.
(warned_decls): New local variable. Contains a stack of decls for
which warnings have been issued.
(add_warned_decl): Adds a decl to the stack.
(already_warned): Returns true if a given decl is on the stack.
(rx_set_current_function): Issue a warning if multiple fast
interrupt handlers are defined.
* config/rx/rx.opt (mwarn-multiple-fast-interrupts): New option.
* doc/invoke.texi: Document the option.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@192041 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/invoke.texi | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 0e7e441b8d0..297b651adfe 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -859,6 +859,7 @@ See RS/6000 and PowerPC Options. -mmax-constant-size=@gol -mint-register=@gol -mpid@gol +-mno-warn-multiple-fast-interrupts@gol -msave-acc-in-interrupts} @emph{S/390 and zSeries Options} @@ -17875,6 +17876,15 @@ command line. By default this feature is not enabled. The default can be restored via the @option{-mno-pid} command-line option. +@item -mno-warn-multiple-fast-interrupts +@itemx -mwarn-multiple-fast-interrupts +@opindex mno-warn-multiple-fast-interrupts +@opindex mwarn-multiple-fast-interrupts +Prevents GCC from issuing a warning message if it finds more than one +fast interrupt handler when it is compiling a file. The default is to +issue a warning for each extra fast interrupt handler found, as the RX +only supports one such interrupt. + @end table @emph{Note:} The generic GCC command-line option @option{-ffixed-@var{reg}} |