+2016-10-09 Alan Modra <amodra@gmail.com>
+ Andreas Schwab <schwab@linux-m68k.org>
+
+ [BZ #20554]
+ * sysdeps/powerpc/powerpc32/ppc-mcount.S (_mcount)
+ [PIC && !SHARED]: Set up PIC register for PLT call.
+
2016-10-07 Joseph Myers <joseph@codesourcery.com>
* math/math.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (iseqsig): Define
*/
ENTRY(_mcount)
+#if defined PIC && !defined SHARED
+# define CALLER_LR_OFFSET 68
+ stwu r1,-64(r1)
+ cfi_adjust_cfa_offset (64)
+ stw r30, 48(r1)
+ cfi_rel_offset (r30, 48)
+#else
+# define CALLER_LR_OFFSET 52
stwu r1,-48(r1)
cfi_adjust_cfa_offset (48)
+#endif
/* We need to save the parameter-passing registers. */
stw r3, 12(r1)
stw r4, 16(r1)
stw r5, 20(r1)
stw r6, 24(r1)
mflr r4
- lwz r3, 52(r1)
+#if defined PIC && !defined SHARED
+ bcl 20,31,0f
+0:
+ mflr r30
+ addis r30, r30, _GLOBAL_OFFSET_TABLE_-0b@ha
+ addi r30, r30, _GLOBAL_OFFSET_TABLE_-0b@l
+#endif
+ lwz r3, CALLER_LR_OFFSET(r1)
mfcr r5
stw r7, 28(r1)
stw r8, 32(r1)
stw r9, 36(r1)
stw r10,40(r1)
stw r4, 44(r1)
- cfi_offset (lr, -4)
+ cfi_rel_offset (lr, 44)
stw r5, 8(r1)
#ifndef SHARED
bl JUMPTARGET(__mcount_internal)
mtcrf 0xff,r6
lwz r5, 20(r1)
lwz r6, 24(r1)
- lwz r0, 52(r1)
+ lwz r0, CALLER_LR_OFFSET(r1)
lwz r7, 28(r1)
lwz r8, 32(r1)
mtlr r0
lwz r9, 36(r1)
lwz r10,40(r1)
/* ...unwind the stack frame, and return to your usual programming. */
+#if defined PIC && !defined SHARED
+ lwz r30, 48(r1)
+ addi r1,r1,64
+#else
addi r1,r1,48
+#endif
bctr
END(_mcount)