Hi Christophe,

On 13/07/18 17:10, christophe.l...@st.com wrote:
From: Christophe Lyon <christophe.l...@linaro.org>

2018-XX-XX  Christophe Lyon  <christophe.l...@st.com>
        Mickaël Guêné  <mickael.gu...@st.com>

        gcc/
        * config/arm/arm.opt: Add -mfdpic option.

Change-Id: Ie5c4ed7434488933de6133186da09cd3ea1291a7

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.

So since this is an ABI, why isn't it just adding a new -mabi value?
In any case, command-line option changes need documentation in invoke.texi.

Thanks,
Kyrill


--
2.6.3


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