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Diffstat (limited to 'docs/UsersManual.html')
| -rw-r--r-- | docs/UsersManual.html | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/docs/UsersManual.html b/docs/UsersManual.html index 2b7b148975..661be80f9d 100644 --- a/docs/UsersManual.html +++ b/docs/UsersManual.html @@ -767,6 +767,18 @@ Don't assume that the C++'s new operator is sane.</dt> <dd>This option tells the compiler to do not assume that C++'s global new operator will always return a pointer that does not alias any other pointer when the function returns.</dd> + +<dt id="opt_ftrap-function=<name>"><b>-ftrap-function=<name></b>: Instruct code +generator to emit a function call to the specified function name for +<tt>__builtin_trap()</tt>.</dt> + +<dd>LLVM code generator translates <tt>__builtin_trap()</tt> to a trap +instruction if it is supported by the target ISA. Otherwise, the builtin is +translated into a call to <tt>abort</tt>. If this option is set, then the code +generator will always lower the builtin to a call to the specified function +regardless of whether the target ISA has a trap instruction. This option is +useful for environements (e.g. deeply embedded) where a trap cannot be properly +handled. </dl> <!-- ======================================================================= --> |