diff options
Diffstat (limited to 'src/VBox/ExtPacks/VBoxDTrace/onnv/uts/intel/dtrace/dtrace_asm.s')
| -rw-r--r-- | src/VBox/ExtPacks/VBoxDTrace/onnv/uts/intel/dtrace/dtrace_asm.s | 457 |
1 files changed, 457 insertions, 0 deletions
diff --git a/src/VBox/ExtPacks/VBoxDTrace/onnv/uts/intel/dtrace/dtrace_asm.s b/src/VBox/ExtPacks/VBoxDTrace/onnv/uts/intel/dtrace/dtrace_asm.s new file mode 100644 index 00000000..47b981d1 --- /dev/null +++ b/src/VBox/ExtPacks/VBoxDTrace/onnv/uts/intel/dtrace/dtrace_asm.s @@ -0,0 +1,457 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include <sys/asm_linkage.h> +#include <sys/regset.h> + +#if defined(lint) +#include <sys/dtrace_impl.h> +#else +#include "assym.h" +#endif + +#if defined(lint) || defined(__lint) + +greg_t +dtrace_getfp(void) +{ return (0); } + +#else /* lint */ + +#if defined(__amd64) + + ENTRY_NP(dtrace_getfp) + movq %rbp, %rax + ret + SET_SIZE(dtrace_getfp) + +#elif defined(__i386) + + ENTRY_NP(dtrace_getfp) + movl %ebp, %eax + ret + SET_SIZE(dtrace_getfp) + +#endif /* __i386 */ +#endif /* lint */ + + +#if defined(lint) || defined(__lint) + +uint32_t +dtrace_cas32(uint32_t *target, uint32_t cmp, uint32_t new) +{ + uint32_t old; + + if ((old = *target) == cmp) + *target = new; + return (old); +} + +void * +dtrace_casptr(void *target, void *cmp, void *new) +{ + void *old; + + if ((old = *(void **)target) == cmp) + *(void **)target = new; + return (old); +} + +#else /* lint */ + +#if defined(__amd64) + + ENTRY(dtrace_cas32) + movl %esi, %eax + lock + cmpxchgl %edx, (%rdi) + ret + SET_SIZE(dtrace_cas32) + + ENTRY(dtrace_casptr) + movq %rsi, %rax + lock + cmpxchgq %rdx, (%rdi) + ret + SET_SIZE(dtrace_casptr) + +#elif defined(__i386) + + ENTRY(dtrace_cas32) + ALTENTRY(dtrace_casptr) + movl 4(%esp), %edx + movl 8(%esp), %eax + movl 12(%esp), %ecx + lock + cmpxchgl %ecx, (%edx) + ret + SET_SIZE(dtrace_casptr) + SET_SIZE(dtrace_cas32) + +#endif /* __i386 */ +#endif /* lint */ + +#if defined(lint) + +/*ARGSUSED*/ +uintptr_t +dtrace_caller(int aframes) +{ + return (0); +} + +#else /* lint */ + +#if defined(__amd64) + ENTRY(dtrace_caller) + movq $-1, %rax + ret + SET_SIZE(dtrace_caller) + +#elif defined(__i386) + + ENTRY(dtrace_caller) + movl $-1, %eax + ret + SET_SIZE(dtrace_caller) + +#endif /* __i386 */ +#endif /* lint */ + +#if defined(lint) + +/*ARGSUSED*/ +void +dtrace_copy(uintptr_t src, uintptr_t dest, size_t size) +{} + +#else + +#if defined(__amd64) + + ENTRY(dtrace_copy) + pushq %rbp + movq %rsp, %rbp + + xchgq %rdi, %rsi /* make %rsi source, %rdi dest */ + movq %rdx, %rcx /* load count */ + repz /* repeat for count ... */ + smovb /* move from %ds:rsi to %ed:rdi */ + leave + ret + SET_SIZE(dtrace_copy) + +#elif defined(__i386) + + ENTRY(dtrace_copy) + pushl %ebp + movl %esp, %ebp + pushl %esi + pushl %edi + + movl 8(%ebp), %esi / Load source address + movl 12(%ebp), %edi / Load destination address + movl 16(%ebp), %ecx / Load count + repz / Repeat for count... + smovb / move from %ds:si to %es:di + + popl %edi + popl %esi + movl %ebp, %esp + popl %ebp + ret + SET_SIZE(dtrace_copy) + +#endif /* __i386 */ +#endif + +#if defined(lint) + +/*ARGSUSED*/ +void +dtrace_copystr(uintptr_t uaddr, uintptr_t kaddr, size_t size, + volatile uint16_t *flags) +{} + +#else + +#if defined(__amd64) + + ENTRY(dtrace_copystr) + pushq %rbp + movq %rsp, %rbp + +0: + movb (%rdi), %al /* load from source */ + movb %al, (%rsi) /* store to destination */ + addq $1, %rdi /* increment source pointer */ + addq $1, %rsi /* increment destination pointer */ + subq $1, %rdx /* decrement remaining count */ + cmpb $0, %al + je 2f + testq $0xfff, %rdx /* test if count is 4k-aligned */ + jnz 1f /* if not, continue with copying */ + testq $CPU_DTRACE_BADADDR, (%rcx) /* load and test dtrace flags */ + jnz 2f +1: + cmpq $0, %rdx + jne 0b +2: + leave + ret + + SET_SIZE(dtrace_copystr) + +#elif defined(__i386) + + ENTRY(dtrace_copystr) + + pushl %ebp / Setup stack frame + movl %esp, %ebp + pushl %ebx / Save registers + + movl 8(%ebp), %ebx / Load source address + movl 12(%ebp), %edx / Load destination address + movl 16(%ebp), %ecx / Load count + +0: + movb (%ebx), %al / Load from source + movb %al, (%edx) / Store to destination + incl %ebx / Increment source pointer + incl %edx / Increment destination pointer + decl %ecx / Decrement remaining count + cmpb $0, %al + je 2f + testl $0xfff, %ecx / Check if count is 4k-aligned + jnz 1f + movl 20(%ebp), %eax / load flags pointer + testl $CPU_DTRACE_BADADDR, (%eax) / load and test dtrace flags + jnz 2f +1: + cmpl $0, %ecx + jne 0b + +2: + popl %ebx + movl %ebp, %esp + popl %ebp + ret + + SET_SIZE(dtrace_copystr) + +#endif /* __i386 */ +#endif + +#if defined(lint) + +/*ARGSUSED*/ +uintptr_t +dtrace_fulword(void *addr) +{ return (0); } + +#else +#if defined(__amd64) + + ENTRY(dtrace_fulword) + movq (%rdi), %rax + ret + SET_SIZE(dtrace_fulword) + +#elif defined(__i386) + + ENTRY(dtrace_fulword) + movl 4(%esp), %ecx + xorl %eax, %eax + movl (%ecx), %eax + ret + SET_SIZE(dtrace_fulword) + +#endif /* __i386 */ +#endif + +#if defined(lint) + +/*ARGSUSED*/ +uint8_t +dtrace_fuword8_nocheck(void *addr) +{ return (0); } + +#else +#if defined(__amd64) + + ENTRY(dtrace_fuword8_nocheck) + xorq %rax, %rax + movb (%rdi), %al + ret + SET_SIZE(dtrace_fuword8_nocheck) + +#elif defined(__i386) + + ENTRY(dtrace_fuword8_nocheck) + movl 4(%esp), %ecx + xorl %eax, %eax + movzbl (%ecx), %eax + ret + SET_SIZE(dtrace_fuword8_nocheck) + +#endif /* __i386 */ +#endif + +#if defined(lint) + +/*ARGSUSED*/ +uint16_t +dtrace_fuword16_nocheck(void *addr) +{ return (0); } + +#else +#if defined(__amd64) + + ENTRY(dtrace_fuword16_nocheck) + xorq %rax, %rax + movw (%rdi), %ax + ret + SET_SIZE(dtrace_fuword16_nocheck) + +#elif defined(__i386) + + ENTRY(dtrace_fuword16_nocheck) + movl 4(%esp), %ecx + xorl %eax, %eax + movzwl (%ecx), %eax + ret + SET_SIZE(dtrace_fuword16_nocheck) + +#endif /* __i386 */ +#endif + +#if defined(lint) + +/*ARGSUSED*/ +uint32_t +dtrace_fuword32_nocheck(void *addr) +{ return (0); } + +#else +#if defined(__amd64) + + ENTRY(dtrace_fuword32_nocheck) + xorq %rax, %rax + movl (%rdi), %eax + ret + SET_SIZE(dtrace_fuword32_nocheck) + +#elif defined(__i386) + + ENTRY(dtrace_fuword32_nocheck) + movl 4(%esp), %ecx + xorl %eax, %eax + movl (%ecx), %eax + ret + SET_SIZE(dtrace_fuword32_nocheck) + +#endif /* __i386 */ +#endif + +#if defined(lint) + +/*ARGSUSED*/ +uint64_t +dtrace_fuword64_nocheck(void *addr) +{ return (0); } + +#else +#if defined(__amd64) + + ENTRY(dtrace_fuword64_nocheck) + movq (%rdi), %rax + ret + SET_SIZE(dtrace_fuword64_nocheck) + +#elif defined(__i386) + + ENTRY(dtrace_fuword64_nocheck) + movl 4(%esp), %ecx + xorl %eax, %eax + xorl %edx, %edx + movl (%ecx), %eax + movl 4(%ecx), %edx + ret + SET_SIZE(dtrace_fuword64_nocheck) + +#endif /* __i386 */ +#endif + +#if defined(lint) || defined(__lint) + +/*ARGSUSED*/ +void +dtrace_probe_error(dtrace_state_t *state, dtrace_epid_t epid, int which, + int fault, int fltoffs, uintptr_t illval) +{} + +#else /* lint */ +#if defined(__amd64) + + ENTRY(dtrace_probe_error) + pushq %rbp + movq %rsp, %rbp + subq $0x8, %rsp + movq %r9, (%rsp) + movq %r8, %r9 + movq %rcx, %r8 + movq %rdx, %rcx + movq %rsi, %rdx + movq %rdi, %rsi + movl dtrace_probeid_error(%rip), %edi + call dtrace_probe + addq $0x8, %rsp + leave + ret + SET_SIZE(dtrace_probe_error) + +#elif defined(__i386) + + ENTRY(dtrace_probe_error) + pushl %ebp + movl %esp, %ebp + pushl 0x1c(%ebp) + pushl 0x18(%ebp) + pushl 0x14(%ebp) + pushl 0x10(%ebp) + pushl 0xc(%ebp) + pushl 0x8(%ebp) + pushl dtrace_probeid_error + call dtrace_probe + movl %ebp, %esp + popl %ebp + ret + SET_SIZE(dtrace_probe_error) + +#endif /* __i386 */ +#endif |