* config/score/crti.asm: add pic support.

        * config/score/crtn.asm: add pic support.
        * config/score/score.h: remove builtin_define("__pic__").
        * config/score/score.c: add TARGET_RTX_COST macro.
        * config/score/score.md: PIC support for call/sibcall pattern.
        * config/score/mul-div.S: add pic support.
        * config/score/t-score-elf: update MULTILIB_OPTIONS.
        * ChangeLog: add shengguo as another score maintainer.
        * config.sub: add score support in it.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@117771 138bc75d-0d04-0410-961f-82ee72b054a4

ChangeLog

@@ -1,3 +1,7 @@
+2006-10-16  Tan Shengguo  <shengguo@sunnorth.com.cn>
+
+	* MAINTAINERS: Add Tan Shengguo as score port maintainer.
+
 2006-10-10  Brooks Moses  <bmoses@stanford.edu>
 
 	* Makefile.def: Added pdf target handling.

config.sub

@@ -909,6 +909,10 @@ case $basic_machine in
 	sb1el)
 		basic_machine=mipsisa64sb1el-unknown
 		;;
+        score | score-*)
+                basic_machine=score-sunplus
+                os=-elf
+                ;;
 	sei)
 		basic_machine=mips-sei
 		os=-seiux

gcc/config/score/crti.asm

@@ -35,7 +35,8 @@
 # This file makes a stack frame for the contents of the .init and
 # .fini sections.
 
-.section .init,"ax", @progbits
+#ifndef __pic__
+.section .init, "ax", @progbits
         .weak   _start
         .ent    _start
         .frame  r0, 0, r3, 0
@@ -81,5 +82,62 @@ _init:
 _fini:
         addi    r0, -32
         sw      r3, [r0, 20]
+#else
+.section .init, "ax", @progbits
+        .set    pic
+        .weak   _start
+        .ent    _start
+        .frame  r0, 0, r3, 0
+        .mask   0x00000000,0
+_start:
+        la      r28, _gp
+        la      r8, __bss_start
+        la      r9, __bss_end__
+        sub!    r9, r8
+        srli!   r9, 2
+        addi    r9, -1
+        mtsr    r9, sr0
+        li      r9, 0
+1:
+        sw      r9, [r8]+, 4
+        bcnz    1b
+        la      r0, _stack
+#       jl      _init
+#       la      r4, _end
+#       jl      _init_argv
+        ldiu!   r4, 0
+        ldiu!   r5, 0
+#       jl      main
+        la      r29, main
+        brl     r29
+#       jl      exit
+        la      r29, exit
+        brl     r29
+        .end    _start
+
+        .weak   _init_argv
+        .ent
+        .frame  r0, 0, r3, 0
+        .mask   0x00000000, 0
+_init_argv:
+        ldiu!   r4, 0
+        ldiu!   r5, 0
+        j       main
+        .end    _init_argv
+
+        .globl  _init
+        .type   _init, %function
+_init:
+        addi    r0, -32
+        sw      r3, [r0, 20]
+
+.section .fini, "ax", @progbits
+        .globl  _fini
+        .type   _fini, %function
+_fini:
+        addi    r0, -32
+        sw      r3, [r0, 20]
+
+#endif
 
 

gcc/config/score/crtn.asm

@@ -35,6 +35,7 @@
 # This file makes sure that the .init and .fini sections do in
 # fact return.
 
+#ifndef __pic__
 .section .init, "ax", @progbits
         lw      r3, [r0, 20]
         addi    r0, 32
@@ -44,4 +45,18 @@
         lw      r3, [r0, 20]
         addi    r0, 32
         br      r3
+#else
+        .set    pic
+.section .init, "ax", @progbits
+        lw      r3, [r0, 20]
+        addi    r0, 32
+        br      r3
+
+        .set    pic
+.section .fini, "ax", @progbits
+        lw      r3, [r0, 20]
+        addi    r0, 32
+        br      r3
+#endif
+