how to change multilib directory

[v-jeahua@microsoft.com]

Hello,


I use the arm-hisiv600-linux-gcc for hisilicon soc chip. The output of arm-hisiv600-linux-gcc -print-multi-lib is:
.;
armv5te_arm9;@mcpu=arm926ej-s
a9;@mcpu=cortex-a9
a7;@mcpu=cortex-a7
a17;@mcpu=cortex-a17
a17_a7;@mcpu=cortex-a17.cortex-a7
armv5te_arm9_soft;@mcpu=arm926ej-s@mfloat-abi=soft
armv5te_arm9_vfp;@mcpu=arm926ej-s@mfloat-abi=softfp@mfpu=vfp
a9_soft;@mcpu=cortex-a9@mfloat-abi=soft
a9_softfp_vfp;@mcpu=cortex-a9@mfloat-abi=softfp@mfpu=vfp
a9_softfp_vfpv3-d16;@mcpu=cortex-a9@mfloat-abi=softfp@mfpu=vfpv3-d16
a9_vfpv3;@mcpu=cortex-a9@mfloat-abi=softfp@mfpu=vfpv3
a9_vfpv3_neon;@mcpu=cortex-a9@mfloat-abi=softfp@mfpu=neon
a9_hard_neon;@mcpu=cortex-a9@mfloat-abi=hard@mfpu=neon
a7_soft;@mcpu=cortex-a7@mfloat-abi=soft
a7_softfp_vfpv4;@mcpu=cortex-a7@mfloat-abi=softfp@mfpu=vfpv4
a7_softfp_neon-vfpv4;@mcpu=cortex-a7@mfloat-abi=softfp@mfpu=neon-vfpv4
a7_hard_neon-vfpv4;@mcpu=cortex-a7@mfloat-abi=hard@mfpu=neon-vfpv4
a17_soft;@mcpu=cortex-a17@mfloat-abi=soft
a17_softfp_vfpv4;@mcpu=cortex-a17@mfloat-abi=softfp@mfpu=vfpv4
a17_softfp_neon-vfpv4;@mcpu=cortex-a17@mfloat-abi=softfp@mfpu=neon-vfpv4
a17_hard_neon-vfpv4;@mcpu=cortex-a17@mfloat-abi=hard@mfpu=neon-vfpv4
a17_a7_soft;@mcpu=cortex-a17.cortex-a7@mfloat-abi=soft
a17_a7_softfp_vfpv4;@mcpu=cortex-a17.cortex-a7@mfloat-abi=softfp@mfpu=vfpv4
a17_a7_softfp_neon-vfpv4;@mcpu=cortex-a17.cortex-a7@mfloat-abi=softfp@mfpu=neon-vfpv4
a17_a7_hard_neon-vfpv4;@mcpu=cortex-a17.cortex-a7@mfloat-abi=hard@mfpu=neon-vfpv4

I want to change the gcc with a17_a7_hard_neon-vfpv4 which needs mcpu=cortex-a17.cortex-a7 mfloat-abi=hard mfpu=neon-vfpv4 options. The default gcc option is mfloat-abi=softfp How can i modify the specs file to use a17_a7_hard_neon-vfpv4? The output of arm-hisiv600-linux-gcc -print-multi-directory is:
.
How to change the specs file to make the output of arm-hisiv600-linux-gcc -print-multi-directory changes to a17_a7_hard_neon-vfpv4?


Thanks!