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Diffstat (limited to 'sysdeps/powerpc/ppc-mcount.S')
-rw-r--r-- | sysdeps/powerpc/ppc-mcount.S | 85 |
1 files changed, 0 insertions, 85 deletions
diff --git a/sysdeps/powerpc/ppc-mcount.S b/sysdeps/powerpc/ppc-mcount.S deleted file mode 100644 index a72d676bbe..0000000000 --- a/sysdeps/powerpc/ppc-mcount.S +++ /dev/null @@ -1,85 +0,0 @@ -/* PowerPC-specific implementation of profiling support. - Copyright (C) 1997, 1999 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -/* This would be bad. */ -#ifdef PROF -#undef PROF -#endif - -#include <sysdep.h> - -/* We do profiling as described in the SYSV ELF ABI, _mcount is called - with the address of a data word in r0 (that is different for every - routine, initialised to 0, and otherwise unused). The caller has put - the address the caller will return to in the usual place on the stack, - 4(r1). _mcount is responsible for ensuring that when it returns no - argument-passing registers are disturbed, and that the LR is set back - to (what the caller sees as) 4(r1). - - This is intended so that the following code can be inserted at the - front of any routine without changing the routine: - - .data - .align 2 - 0: .long 0 - .previous - mflr r0 - lis r11,0b@ha - stw r0,4(r1) - addi r0,r11,0b@l - bl _mcount -*/ - -ENTRY(_mcount) - stwu r1,-48(r1) -/* 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) - mfcr r5 - stw r7, 28(r1) - stw r8, 32(r1) - stw r9, 36(r1) - stw r10,40(r1) - stw r4, 44(r1) - stw r5, 8(r1) - bl JUMPTARGET(__mcount_internal) - nop - /* Restore the registers... */ - lwz r6, 8(r1) - lwz r0, 44(r1) - lwz r3, 12(r1) - mtctr r0 - lwz r4, 16(r1) - mtcrf 0xff,r6 - lwz r5, 20(r1) - lwz r6, 24(r1) - lwz r0, 52(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. */ - addi r1,r1,48 - bctr -END(_mcount) |