test/pevent/src/pevent-split.ptt

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; Test that we handle section splits correctly.
;
;     There is a corner case when a linear sequence of instructions that jumps
;     back to the section in which it begins is split by adding a new section
;     in the middle of this sequence.
;
;     If we do not handle this correctly, we may leave a stale block cache entry
;     that would cause us to miss the change made to this sequence by jumping
;     over the newly added section and back into the original section.
;
;
; opt:ptdump --sb:compact --sb:offset
; opt:ptxed --event:tick --sb:compact --sb:offset
;

org 0x1000
bits 64


; @sb primary(pevent)
; @sb pevent-sample_type(time)
; @sb s0: pevent-mmap-section(text, 1, 1, 0x0)
; @sb s1: pevent-itrace-start(1, 1, 0x0)

section text vstart=0x1000 start=0x1000
; @pt p0:  psb()
; @pt p1:  mode.exec(64bit)
; @pt p2:  tsc(0x1)
; @pt p3:  fup(3: %l0)
; @pt p4:  psbend()
l0: nop
l1: nop
l2: nop
l3: nop

; @pt p5: tip(1: %l6)
l4: jmp rax
l5: hlt

l6: nop
l7: nop
l8: nop
l9: nop
l10: nop
l11: nop
l12: nop

l13: jmp l0
l14: hlt

; @pt p6: tsc(0x2)
; @pt p7: tip(1: %l6)
; @sb s2: pevent-mmap-section(foo, 1, 1, 0x2)

; @pt p8:  tip(1: %l15)

; @pt p9:  fup(1: %l16)
; @pt p10: tip.pgd(0: %l16)
l15: nop
l16: hlt

section foo vstart=0x1008 start=0x1100
l17: jmp rax


; @pt .exp(ptdump)
;%0p0   psb
;%0p1   mode.exec    cs.l
;%0s0   PERF_RECORD_MMAP 1/1, 1000, 13, 0, pevent-split.bin { 0 }
;%0s1   PERF_RECORD_ITRACE_START 1/1 { 0 }
;%0p2   tsc          1
;%0p3   fup          3: %?l0
;%0p4   psbend
;%0p5   tip          1: %?l6.2
;%0s2   PERF_RECORD_MMAP 1/1, 1008, 2, 100, pevent-split.bin { 2 }
;%0p6   tsc          2
;%0p7   tip          1: %?l6.2
;%0p8   tip          1: %?l15.2
;%0p9   fup          1: %?l16.2
;%0p10  tip.pgd      0: %?l16.0


; @pt .exp(ptxed)
;%0s0   PERF_RECORD_MMAP 1/1, 1000, 13, 0, pevent-split.bin { 0 }
;%0s1   PERF_RECORD_ITRACE_START 1/1 { 0 }
;%0l0  # nop
;%0l1  # nop
;%0l2  # nop
;%0l3  # nop
;%0l4  # jmp rax
;%0l6  # nop
;%0l7  # nop
;%0l8  # nop
;%0l9  # nop
;%0l10 # nop
;%0l11 # nop
;%0l12 # nop
;%0l13 # jmp l0
;%0l0  # nop
;%0l1  # nop
;%0l2  # nop
;%0l3  # nop
;%0l4  # jmp rax
;[tick]
;%0s2   PERF_RECORD_MMAP 1/1, 1008, 2, 100, pevent-split.bin { 2 }
;%0l6  # nop
;%0l17 # jmp rax
;%0l15 # nop
;[disabled]