35 lines
1.3 KiB
Diff
35 lines
1.3 KiB
Diff
SPDX-FileCopyrightText: 2021 fosslinux <fosslinux@aussies.space>
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SPDX-License-Identifier: GPL-2.0-only
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Our older version of binutils doesn't play very nicely with binutils for a
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couple of edgecase macros. It seems that ALTERNATIVE is one of these. As we
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know what your system will be (not Xen), we can manually evaluate and write
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out the ALTERNATIVEs.
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--- arch/x86/entry/entry_32.S 2021-07-31 11:40:07.458032771 +1000
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+++ arch/x86/entry/entry_32.S 2021-07-31 11:40:42.835298841 +1000
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@@ -412,9 +412,8 @@
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movl %esp, %eax
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call do_fast_syscall_32
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- /* XEN PV guests always use IRET path */
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- ALTERNATIVE "testl %eax, %eax; jz .Lsyscall_32_done", \
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- "jmp .Lsyscall_32_done", X86_FEATURE_XENPV
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+ testl %eax, %eax
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+ jz .Lsyscall_32_done
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/* Opportunistic SYSEXIT */
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TRACE_IRQS_ON /* User mode traces as IRQs on. */
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--- arch/x86/entry/vdso/vdso32/system_call.S 2021-07-31 11:41:40.379731622 +1000
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+++ arch/x86/entry/vdso/vdso32/system_call.S 2021-07-31 11:43:40.294633506 +1000
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@@ -55,8 +55,6 @@
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/* If SYSENTER (Intel) or SYSCALL32 (AMD) is available, use it. */
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ALTERNATIVE_2 "", SYSENTER_SEQUENCE, X86_FEATURE_SYSENTER32, \
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SYSCALL_SEQUENCE, X86_FEATURE_SYSCALL32
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-#else
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- ALTERNATIVE "", SYSENTER_SEQUENCE, X86_FEATURE_SEP
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#endif
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/* Enter using int $0x80 */
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