diff options
Diffstat (limited to 'gcc-4.9/gcc/config/i386/i386.opt')
-rw-r--r-- | gcc-4.9/gcc/config/i386/i386.opt | 40 |
1 files changed, 28 insertions, 12 deletions
diff --git a/gcc-4.9/gcc/config/i386/i386.opt b/gcc-4.9/gcc/config/i386/i386.opt index f64a9e1eb..502037b68 100644 --- a/gcc-4.9/gcc/config/i386/i386.opt +++ b/gcc-4.9/gcc/config/i386/i386.opt @@ -781,18 +781,6 @@ mrtm Target Report Mask(ISA_RTM) Var(ix86_isa_flags) Save Support RTM built-in functions and code generation -mpatch-functions-for-instrumentation -Target RejectNegative Report Var(patch_functions_for_instrumentation) Save -Patch function prologue and epilogue with custom NOPs for dynamic instrumentation. By default, functions with loops (controlled by -mpatch-functions-without-loop) or functions having instructions more than -mpatch-functions-min-instructions are patched. - -mpatch-functions-ignore-loops -Target RejectNegative Report Var(patch_functions_ignore_loops) Save -Ignore loops when deciding whether to patch a function for instrumentation (for use with -mpatch-functions-for-instrumentation). - -mno-patch-functions-main-always -Target Report RejectNegative Var(patch_functions_dont_always_patch_main) Save -Treat 'main' as any other function and only patch it if it meets the criteria for loops and minimum number of instructions (for use with -mpatch-functions-for-instrumentation). - mstack-protector-guard= Target RejectNegative Joined Enum(stack_protector_guard) Var(ix86_stack_protector_guard) Init(SSP_TLS) Use given stack-protector guard @@ -806,3 +794,31 @@ Enum(stack_protector_guard) String(tls) Value(SSP_TLS) EnumValue Enum(stack_protector_guard) String(global) Value(SSP_GLOBAL) + +mindirect-branch= +Target Report RejectNegative Joined Enum(indirect_branch) Var(ix86_indirect_branch) Init(indirect_branch_keep) +Convert indirect call and jump to call and return thunks. + +mfunction-return= +Target Report RejectNegative Joined Enum(indirect_branch) Var(ix86_function_return) Init(indirect_branch_keep) +Convert function return to call and return thunk. + +Enum +Name(indirect_branch) Type(enum indirect_branch) +Known indirect branch choices (for use with the -mindirect-branch=/-mfunction-return= options): + +EnumValue +Enum(indirect_branch) String(keep) Value(indirect_branch_keep) + +EnumValue +Enum(indirect_branch) String(thunk) Value(indirect_branch_thunk) + +EnumValue +Enum(indirect_branch) String(thunk-inline) Value(indirect_branch_thunk_inline) + +EnumValue +Enum(indirect_branch) String(thunk-extern) Value(indirect_branch_thunk_extern) + +mindirect-branch-register +Target Report Var(ix86_indirect_branch_register) Init(0) +Force indirect call and jump via register. |