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| /* SPDX-License-Identifier: GPL-2.0 */
| #include <linux/linkage.h>
|
| #define AX 0
| #define BX 1 * 8
| #define CX 2 * 8
| #define DX 3 * 8
| #define SI 4 * 8
| #define DI 5 * 8
| #define BP 6 * 8
| #define SP 7 * 8
| #define IP 8 * 8
| #define FLAGS 9 * 8
| #define CS 10 * 8
| #define SS 11 * 8
| #define DS 12 * 8
| #define ES 13 * 8
| #define FS 14 * 8
| #define GS 15 * 8
| #define R8 16 * 8
| #define R9 17 * 8
| #define R10 18 * 8
| #define R11 19 * 8
| #define R12 20 * 8
| #define R13 21 * 8
| #define R14 22 * 8
| #define R15 23 * 8
|
| .text
| #ifdef HAVE_ARCH_X86_64_SUPPORT
| SYM_FUNC_START(perf_regs_load)
| movq %rax, AX(%rdi)
| movq %rbx, BX(%rdi)
| movq %rcx, CX(%rdi)
| movq %rdx, DX(%rdi)
| movq %rsi, SI(%rdi)
| movq %rdi, DI(%rdi)
| movq %rbp, BP(%rdi)
|
| leaq 8(%rsp), %rax /* exclude this call. */
| movq %rax, SP(%rdi)
|
| movq 0(%rsp), %rax
| movq %rax, IP(%rdi)
|
| movq $0, FLAGS(%rdi)
| movq $0, CS(%rdi)
| movq $0, SS(%rdi)
| movq $0, DS(%rdi)
| movq $0, ES(%rdi)
| movq $0, FS(%rdi)
| movq $0, GS(%rdi)
|
| movq %r8, R8(%rdi)
| movq %r9, R9(%rdi)
| movq %r10, R10(%rdi)
| movq %r11, R11(%rdi)
| movq %r12, R12(%rdi)
| movq %r13, R13(%rdi)
| movq %r14, R14(%rdi)
| movq %r15, R15(%rdi)
| ret
| SYM_FUNC_END(perf_regs_load)
| #else
| SYM_FUNC_START(perf_regs_load)
| push %edi
| movl 8(%esp), %edi
| movl %eax, AX(%edi)
| movl %ebx, BX(%edi)
| movl %ecx, CX(%edi)
| movl %edx, DX(%edi)
| movl %esi, SI(%edi)
| pop %eax
| movl %eax, DI(%edi)
| movl %ebp, BP(%edi)
|
| leal 4(%esp), %eax /* exclude this call. */
| movl %eax, SP(%edi)
|
| movl 0(%esp), %eax
| movl %eax, IP(%edi)
|
| movl $0, FLAGS(%edi)
| movl $0, CS(%edi)
| movl $0, SS(%edi)
| movl $0, DS(%edi)
| movl $0, ES(%edi)
| movl $0, FS(%edi)
| movl $0, GS(%edi)
| ret
| SYM_FUNC_END(perf_regs_load)
| #endif
|
| /*
| * We need to provide note.GNU-stack section, saying that we want
| * NOT executable stack. Otherwise the final linking will assume that
| * the ELF stack should not be restricted at all and set it RWX.
| */
| .section .note.GNU-stack,"",@progbits
|
|
