Moved global variables from .text section to .bss in ppc/linux startup code, improves position independency

git-svn-id: trunk@16210 -

rtl/linux/powerpc/cprt0.as

@@ -74,8 +74,8 @@ main_stub:
     lis     11, operatingsystem_parameter_envp@ha
     stw      5, operatingsystem_parameter_envp@l(11);
 
-    lis 	11,__stkptr@ha
-	stw 	1,__stkptr@l(11);
+    lis     11,__stkptr@ha
+    stw      1,__stkptr@l(11);
 
     lis     11, ___fpc_ret@ha
     stw     1, ___fpc_ret@l(11)
@@ -110,11 +110,22 @@ data_start:
 ___fpc_ret:                            /* return address to libc */
     .long   0
 
-.text
-    .comm __stkptr, 4
-
-    .comm operatingsystem_parameter_envp, 4
-    .comm operatingsystem_parameter_argc, 4
-    .comm operatingsystem_parameter_argv, 4
+    .section ".bss"
+    .type __stkptr, @object
+    .size __stkptr, 8
+    .global __stkptr
+__stkptr:
+    .skip 4
+
+    .type operatingsystem_parameters, @object
+    .size operatingsystem_parameters, 12
+operatingsystem_parameters:
+    .skip 3 * 4
+    .global operatingsystem_parameter_argc
+    .global operatingsystem_parameter_argv
+    .global operatingsystem_parameter_envp
+    .set operatingsystem_parameter_argc, operatingsystem_parameters+0
+    .set operatingsystem_parameter_argv, operatingsystem_parameters+4
+    .set operatingsystem_parameter_envp, operatingsystem_parameters+8
 
 .section .note.GNU-stack,"",%progbits

rtl/linux/powerpc/prt0.as

@@ -17,55 +17,67 @@
    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
    02111-1307 USA.  */
 
-        .section ".text"
-        .globl  _start
+    .section ".text"
+    .globl  _start
 _start:
-	mr 	26,1
-	/* Set up an initial stack frame, and clear the LR.  */
-	clrrwi	1,1,4
-	li	0,0
-	stwu	1,-16(1)
-	mtlr	0
-	stw	0,0(1)
-	lwz     3,0(26)       /* get argc */
-        lis 	11,operatingsystem_parameter_argc@ha
-	stw 	3,operatingsystem_parameter_argc@l(11);
+    mr      26,1
+    /* Set up an initial stack frame, and clear the LR.  */
+    clrrwi   1,1,4
+    li       0,0
+    stwu     1,-16(1)
+    mtlr     0
+    stw      0,0(1)
+    lwz      3,0(26)       /* get argc */
+    lis     11,operatingsystem_parameter_argc@ha
+    stw      3,operatingsystem_parameter_argc@l(11);
 
-	addi    4,26,4        /* get argv */
-        lis 	11,operatingsystem_parameter_argv@ha
-	stw 	4,operatingsystem_parameter_argv@l(11);
+    addi     4,26,4        /* get argv */
+    lis     11,operatingsystem_parameter_argv@ha
+    stw      4,operatingsystem_parameter_argv@l(11);
 
-	addi    27,3,1        /* calculate argc + 1 into r27 */
-        slwi    27,27,2       /* calculate (argc + 1) * sizeof(char *) into r27 */
-        add     5,4,27        /* get address of env[0] */
-	lis 	11,operatingsystem_parameter_envp@ha
-	stw 	5,operatingsystem_parameter_envp@l(11);
+    addi    27,3,1        /* calculate argc + 1 into r27 */
+    slwi    27,27,2       /* calculate (argc + 1) * sizeof(char *) into r27 */
+    add      5,4,27       /* get address of env[0] */
+    lis     11,operatingsystem_parameter_envp@ha
+    stw      5,operatingsystem_parameter_envp@l(11);
 
-    lis 	11,__stkptr@ha
-	stw 	1,__stkptr@l(11);
+    lis     11,__stkptr@ha
+    stw      1,__stkptr@l(11);
 
-	bl	PASCALMAIN
+    bl         PASCALMAIN
 
-	b	_haltproc
+    b          _haltproc
 
-        .globl  _haltproc
-        .type   _haltproc,@function
+    .globl  _haltproc
+    .type   _haltproc,@function
 _haltproc:
-        li      0,1	      /* exit call */
-        sc
-        b	_haltproc
+    li       0,1          /* exit call */
+    sc
+    b          _haltproc
 
-	/* Define a symbol for the first piece of initialized data.  */
-	.section ".data"
-	.globl	__data_start
+/* Define a symbol for the first piece of initialized data.  */
+    .section ".data"
+    .globl __data_start
 __data_start:
 data_start:
 
-.text
-        .comm __stkptr,4
+    .section ".bss"
 
-        .comm operatingsystem_parameter_envp,4
-        .comm operatingsystem_parameter_argc,4
-        .comm operatingsystem_parameter_argv,4
+    .type __stkptr, @object
+    .size __stkptr, 4
+    .global __stkptr
+__stkptr:
+    .skip 4
+
+    .type operatingsystem_parameters, @object
+    .size operatingsystem_parameters, 12
+operatingsystem_parameters:
+    .skip 3 * 4
+    .global operatingsystem_parameter_argc
+    .global operatingsystem_parameter_argv
+    .global operatingsystem_parameter_envp
+    .set operatingsystem_parameter_argc, operatingsystem_parameters+0
+    .set operatingsystem_parameter_argv, operatingsystem_parameters+4
+    .set operatingsystem_parameter_envp, operatingsystem_parameters+8
 
 .section .note.GNU-stack,"",%progbits