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Re: [ARM/FDPIC v3 01/21] [ARM] FDPIC: Add -mfdpic option support
On 11/10/18 14:34, Christophe Lyon wrote:
> 2018-XX-XX Christophe Lyon <christophe.lyon@st.com>
> Mickaël Guêné <mickael.guene@st.com>
>
> gcc/
> * config/arm/arm.opt: Add -mfdpic option.
> * doc/invoke.texi: Add documentation for -mfdpic.
This is OK (once the rest of the series is approved).
R.
>
> diff --git a/gcc/config/arm/arm.opt b/gcc/config/arm/arm.opt
> index a1286a4..231c1cb 100644
> --- a/gcc/config/arm/arm.opt
> +++ b/gcc/config/arm/arm.opt
> @@ -302,3 +302,7 @@ When linking for big-endian targets, generate a legacy BE32 format image.
> mbranch-cost=
> Target RejectNegative Joined UInteger Var(arm_branch_cost) Init(-1)
> Cost to assume for a branch insn.
> +
> +mfdpic
> +Target Report Mask(FDPIC)
> +Enable Function Descriptor PIC mode.
> diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
> index 5c95f67..3e33e60 100644
> --- a/gcc/doc/invoke.texi
> +++ b/gcc/doc/invoke.texi
> @@ -684,7 +684,8 @@ Objective-C and Objective-C++ Dialects}.
> -mrestrict-it @gol
> -mverbose-cost-dump @gol
> -mpure-code @gol
> --mcmse}
> +-mcmse @gol
> +-mfdpic}
>
> @emph{AVR Options}
> @gccoptlist{-mmcu=@var{mcu} -mabsdata -maccumulate-args @gol
> @@ -17059,6 +17060,13 @@ MOVT instruction.
> Generate secure code as per the "ARMv8-M Security Extensions: Requirements on
> Development Tools Engineering Specification", which can be found on
> @url{http://infocenter.arm.com/help/topic/com.arm.doc.ecm0359818/ECM0359818_armv8m_security_extensions_reqs_on_dev_tools_1_0.pdf}.
> +
> +@item -mfdpic
> +@opindex mfdpic
> +Select the FDPIC ABI, which uses function descriptors to represent
> +pointers to functions. Without any PIC/PIE-related options, it
> +implies @option{-fPIE}.
> +
> @end table
>
> @node AVR Options
>