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| author | François-Xavier Coudert <fxcoudert@gcc.gnu.org> | 2005-10-12 20:21:31 +0000 |
|---|---|---|
| committer | François-Xavier Coudert <fxcoudert@gcc.gnu.org> | 2005-10-12 20:21:31 +0000 |
| commit | 944b8b35a92ccdde4c4fa5458a1b48d8e8a25412 (patch) | |
| tree | af4f5409e807606750191918d192516dcd170012 /gcc/fortran/invoke.texi | |
| parent | f23a977ce50e244b7cda0d54d36e5b8e6d505795 (diff) | |
| download | gcc-944b8b35a92ccdde4c4fa5458a1b48d8e8a25412.zip gcc-944b8b35a92ccdde4c4fa5458a1b48d8e8a25412.tar.gz gcc-944b8b35a92ccdde4c4fa5458a1b48d8e8a25412.tar.bz2 | |
gfortran.h: Add bitmasks for different FPE traps.
* gfortran.h: Add bitmasks for different FPE traps. Add fpe
member to options_t.
* invoke.texi: Document the new -ffpe-trap option.
* lang.opt: Add -ffpe-trap option.
* options.c (gfc_init_options): Initialize the FPE option.
(gfc_handle_fpe_trap_option): New function to parse the argument
of the -ffpe-trap option.
(gfc_handle_option): Add case for -ffpe-trap.
* trans-decl.c: Declare a tree for the set_fpe library function.
(gfc_build_builtin_function_decls): Build this tree.
(gfc_generate_function_code): Generate a call to set_fpe at
the beginning of the main program.
* trans.h: New tree for the set_fpe library function.
* Makefile.am: Add fpu.c to the build process, and
target-dependent code as fpu-target.h.
* Makefile.in: Regenerate.
* configure.ac: Add call to configure.host to set
FPU_HOST_HEADER.
* configure: Regenerate.
* config.h.in: Regenerate.
* aclocal.m4: Regenerate.
* configure.host: New script to determine which host-dependent
code should go in.
* libgfortran.h: Add fpe option, remove previous fpu_ options.
Add bitmasks for different FPE traps. Add prototype for set_fpu.
* runtime/environ.c: Remove environment variables to control
fpu behaviour.
* runtime/fpu.c (set_fpe): New function for the front-end.
* runtime/main.c (init): Set FPU state.
* config: New directory to store host-dependent code.
* config/fpu-387.h: New file with code handling the i387 FPU.
* config/fpu-glibc.h: New file with code for glibc systems.
* config/fpu-generic.h: Fallback for the most generic host. Issue
warnings.
From-SVN: r105328
Diffstat (limited to 'gcc/fortran/invoke.texi')
| -rw-r--r-- | gcc/fortran/invoke.texi | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/gcc/fortran/invoke.texi b/gcc/fortran/invoke.texi index 847ab29..88e8eef 100644 --- a/gcc/fortran/invoke.texi +++ b/gcc/fortran/invoke.texi @@ -133,7 +133,7 @@ by type. Explanations are in the following sections. @item Debugging Options @xref{Debugging Options,,Options for Debugging Your Program or GCC}. @gccoptlist{ --fdump-parse-tree} +-fdump-parse-tree -ffpe-trap=@var{list}} @item Directory Options @xref{Directory Options,,Options for Directory Search}. @@ -464,6 +464,22 @@ Output the internal parse tree before starting code generation. Only really useful for debugging gfortran itself. @end table +@table @gcctabopt +@cindex -ffpe-trap=@var{list} option +@cindex option, -ffpe-trap=@var{list} +@item -ffpe-trap=@var{list} +Specify a list of IEEE exceptions when a Floating Point Exception +(FPE) should be raised. On most systems, this will result in a SIGFPE +signal being sent and the program being interrupted, producing a core +file useful for debugging. @var{list} is a (possibly empty) comma-separated +list of the following IEEE exceptions: @samp{invalid} (invalid floating +point operation, such as @code{sqrt(-1.0)}), @samp{zero} (division by +zero), @samp{overflow} (overflow in a floating point operation), +@samp{underflow} (underflow in a floating point operation), +@samp{precision} (loss of precision during operation) and @samp{denormal} +(operation produced a denormal denormal value). +@end table + @xref{Debugging Options,,Options for Debugging Your Program or GCC, gcc,Using the GNU Compiler Collection (GCC)}, for more information on debugging options. |