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[metal] Fix bug: do not initialize IDT & TSS if unneeded (#654)

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libc/intrin/interrupts.S should not be linked in unless
an IDT (or TSS) is explicitly requested somewhere (i.e.
it should probably not be a mandatory module).
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tkchia 2022-10-11 11:54:46 +08:00 • committed by GitHub
parent 7a06760e6f
commit 31dab8a75d
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3 changed files with 11 additions and 5 deletions
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6
libc/intrin/interrupts.S
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@ -93,9 +93,9 @@ __excep0_isr:
ezlea .excep_msg,di # stack should be 16-byte aligned now
xor %eax,%eax # kprintf is variadic, remember to
# pass no. of vector regs. used (= 0)
.weak kprintf # weakly link kprintf() because this
ezlea kprintf,bx # module is a mandatory dependency
test %ebx,%ebx # and we want to keep life.com tiny
.weak kprintf # weakly link kprintf() because we
ezlea kprintf,bx # want to keep life.com tiny
test %ebx,%ebx
jz 8f
call *%rbx # print error message
8: cli