Add support for kernel profiling for both AIM and BookE.
Obtained from: Juniper Networks, Inc (BookE support).
This commit is contained in:
Marcel Moolenaar
parent
1463295f81
commit
dc9d16844c
@ -111,11 +111,14 @@ openfirmware_entry:
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srsave:
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.long 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
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.text
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.globl btext
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btext:
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/*
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* This symbol is here for the benefit of kvm_mkdb, and is supposed to
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* mark the start of kernel text.
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*/
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.text
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.globl kernel_text
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kernel_text:
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@ -41,11 +41,14 @@
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#define TMPSTACKSZ 16384
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.text
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.globl btext
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btext:
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/*
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* This symbol is here for the benefit of kvm_mkdb, and is supposed to
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* mark the start of kernel text.
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*/
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.text
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.globl kernel_text
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kernel_text:
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@ -81,61 +81,87 @@ typedef u_int fptrdiff_t;
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#define _PLT
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#endif
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#define MCOUNT \
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__asm(" .globl _mcount \n" \
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" .type _mcount,@function \n" \
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"_mcount: \n" \
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" stwu %r1,-64(%r1) /* alloca for reg save space */ \n" \
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" stw %r3,16(%r1) /* save parameter registers, */ \n" \
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" stw %r4,20(%r1) /* r3-10 */ \n" \
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" stw %r5,24(%r1) \n" \
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" stw %r6,28(%r1) \n" \
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" stw %r7,32(%r1) \n" \
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" stw %r8,36(%r1) \n" \
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" stw %r9,40(%r1) \n" \
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" stw %r10,44(%r1) \n" \
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" \n" \
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" mflr %r4 /* link register is 'selfpc' */ \n" \
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" stw %r4,48(%r1) /* save since bl will scrub */ \n" \
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" lwz %r3,68(%r1) /* get 'frompc' from LR-save */ \n" \
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" bl __mcount" _PLT " /* __mcount(frompc, selfpc)*/ \n" \
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" lwz %r3,68(%r1) \n" \
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" mtlr %r3 /* restore caller's lr */ \n" \
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" lwz %r4,48(%r1) \n" \
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" mtctr %r4 /* set up ctr for call back */ \n" \
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" /* note that blr is not used!*/ \n" \
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" lwz %r3,16(%r1) /* restore r3-10 parameters */ \n" \
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" lwz %r4,20(%r1) \n" \
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" lwz %r5,24(%r1) \n" \
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" lwz %r6,28(%r1) \n" \
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" lwz %r7,32(%r1) \n" \
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" lwz %r8,36(%r1) \n" \
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" lwz %r9,40(%r1) \n" \
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" lwz %r10,44(%r1) \n" \
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" addi %r1,%r1,64 /* blow away alloca save area */ \n" \
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" bctr /* return with indirect call */ \n" \
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"_mcount_end: \n" \
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" .size _mcount,_mcount_end-_mcount");
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#define MCOUNT \
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__asm( " .globl _mcount \n" \
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" .type _mcount,@function \n" \
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" .align 4 \n" \
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"_mcount: \n" \
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" stwu %r1,-64(%r1) \n" \
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" stw %r3,16(%r1) \n" \
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" stw %r4,20(%r1) \n" \
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" stw %r5,24(%r1) \n" \
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" stw %r6,28(%r1) \n" \
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" stw %r7,32(%r1) \n" \
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" stw %r8,36(%r1) \n" \
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" stw %r9,40(%r1) \n" \
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" stw %r10,44(%r1) \n" \
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" mflr %r4 \n" \
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" stw %r4,48(%r1) \n" \
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" lwz %r3,68(%r1) \n" \
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" bl __mcount" _PLT " \n" \
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" lwz %r3,68(%r1) \n" \
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" mtlr %r3 \n" \
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" lwz %r4,48(%r1) \n" \
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" mtctr %r4 \n" \
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" lwz %r3,16(%r1) \n" \
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" lwz %r4,20(%r1) \n" \
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" lwz %r5,24(%r1) \n" \
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" lwz %r6,28(%r1) \n" \
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" lwz %r7,32(%r1) \n" \
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" lwz %r8,36(%r1) \n" \
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" lwz %r9,40(%r1) \n" \
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" lwz %r10,44(%r1) \n" \
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" addi %r1,%r1,64 \n" \
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" bctr \n" \
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"_mcount_end: \n" \
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" .size _mcount,_mcount_end-_mcount");
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#ifdef _KERNEL
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#define MCOUNT_ENTER(s) s = intr_disable();
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#define MCOUNT_EXIT(s) intr_restore(s);
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#define MCOUNT_DECL(s) register_t s
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#define MCOUNT_ENTER(s) s = intr_disable()
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#define MCOUNT_EXIT(s) intr_restore(s)
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#define MCOUNT_DECL(s) register_t s;
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void bintr(void);
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void btrap(void);
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void eintr(void);
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void user(void);
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#ifndef COMPILING_LINT
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#ifdef AIM
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#include <machine/trap.h>
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#define __PROFILE_VECTOR_BASE EXC_RST
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#define __PROFILE_VECTOR_TOP (EXC_LAST + 0x100)
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#endif /* AIM */
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#ifdef E500
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extern char interrupt_vector_base[];
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extern char interrupt_vector_top[];
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#define __PROFILE_VECTOR_BASE (uintfptr_t)interrupt_vector_base
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#define __PROFILE_VECTOR_TOP (uintfptr_t)interrupt_vector_top
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#endif /* E500 */
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#endif /* !COMPILING_LINT */
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#define MCOUNT_FROMPC_USER(pc) \
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((pc < (uintfptr_t)VM_MAXUSER_ADDRESS) ? (uintfptr_t)user : pc)
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#ifndef __PROFILE_VECTOR_BASE
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#define __PROFILE_VECTOR_BASE 0
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#endif
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#ifndef __PROFILE_VECTOR_TOP
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#define __PROFILE_VECTOR_TOP 1
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#endif
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#define MCOUNT_FROMPC_INTR(pc) \
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((pc >= (uintfptr_t)btrap && pc < (uintfptr_t)eintr) ? \
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((pc >= (uintfptr_t)bintr) ? (uintfptr_t)bintr : \
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(uintfptr_t)btrap) : ~0U)
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static __inline void
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powerpc_profile_interrupt(void)
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{
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}
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static __inline void
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powerpc_profile_userspace(void)
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{
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}
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#define MCOUNT_FROMPC_USER(pc) \
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((pc < (uintfptr_t)VM_MAXUSER_ADDRESS) ? \
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(uintfptr_t)powerpc_profile_userspace : pc)
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#define MCOUNT_FROMPC_INTR(pc) \
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((pc >= __PROFILE_VECTOR_BASE && \
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pc < __PROFILE_VECTOR_TOP) ? \
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(uintfptr_t)powerpc_profile_interrupt : ~0U)
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void __mcount(uintfptr_t frompc, uintfptr_t selfpc);
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#else /* !_KERNEL */
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