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Add support for trace traps by returning from them just as for breakpoint
traps rather than halting. Ideally, we should avoid printing the 'BTX halted' message for debug register dumps.
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parent
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Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=85990
@ -408,7 +408,11 @@ except.2: push $SEL_SDATA # Set up
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popl %ds # saved
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cmpb $0x3,(%esp,1) # Breakpoint?
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je except.3 # Yes
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jmp exit # Exit
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cmpb $0x1,(%esp,1) # Debug?
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jne except.2a # No
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testl $0x100,0x10(%esp,1) # Trap flag set?
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jnz except.3 # Yes
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except.2a: jmp exit # Exit
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except.3: leal 0x8(%esp,1),%esp # Discard err, int no
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iret # From interrupt
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#
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@ -408,7 +408,11 @@ except.2: push $SEL_SDATA # Set up
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popl %ds # saved
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cmpb $0x3,(%esp,1) # Breakpoint?
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je except.3 # Yes
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jmp exit # Exit
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cmpb $0x1,(%esp,1) # Debug?
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jne except.2a # No
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testl $0x100,0x10(%esp,1) # Trap flag set?
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jnz except.3 # Yes
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except.2a: jmp exit # Exit
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except.3: leal 0x8(%esp,1),%esp # Discard err, int no
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iret # From interrupt
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#
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