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amd64: drop q suffix from rd[fg]sbase for gas compatibility

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Reviewed by:	kib
Approved by:	markj (mentor)
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D12133
This commit is contained in:
Ryan Libby 2017-08-26 23:13:18 +00:00
parent 4532588625
commit 0d4e7ec5f3
2 changed files with 4 additions and 4 deletions
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2
sys/amd64/amd64/cpu_switch.S
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@ -108,7 +108,7 @@ ENTRY(cpu_switch)
movl %fs,%eax
cmpl $KUF32SEL,%eax
jne 1f
rdfsbaseq %rax
rdfsbase %rax
movq %rax,PCB_FSBASE(%r8)
1: movl %gs,%eax
cmpl $KUG32SEL,%eax

6
sys/amd64/amd64/exception.S
View file

@ -340,10 +340,10 @@ prot_addrf:
jz 2f
cmpw $KUF32SEL,TF_FS(%rsp)
jne 1f
rdfsbaseq %rax
rdfsbase %rax
1: cmpw $KUG32SEL,TF_GS(%rsp)
jne 2f
rdgsbaseq %rdx
rdgsbase %rdx
2: swapgs
movq PCPU(CURPCB),%rdi
testb $CPUID_STDEXT_FSGSBASE,cpu_stdext_feature(%rip)
@ -533,7 +533,7 @@ nmi_fromuserspace:
jz 2f
cmpw $KUF32SEL,TF_FS(%rsp)
jne 1f
rdfsbaseq %rax
rdfsbase %rax
movq %rax,PCB_FSBASE(%rdi)
1: cmpw $KUG32SEL,TF_GS(%rsp)
jne 2f