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221
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1 # Test to check if machine function splitter still produces the right backtraces
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2 # with lldb when a function is split into a hot and cold part and the cold part
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3 # is executed. The cold part has the same function symbol name but with a
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4 # ".cold" suffix and this test checks that the back trace is clear.
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5
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6 # UNSUPPORTED: system-darwin, system-windows
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7 # REQUIRES: target-x86_64
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8 # REQUIRES: lld
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9
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10 # RUN: split-file %s %t.split
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11 #
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12 # RUN: %clang_host %p/Inputs/split-machine-functions.ll -o %t
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13 # RUN: %lldb %t -s %t.split/commands -o exit | FileCheck %s --check-prefix=DEFAULT
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14 #
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15 # RUN: %clang_host %p/Inputs/split-machine-functions.ll -fsplit-machine-functions -o %t
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16 # RUN: %lldb %t -s %t.split/commands -o exit | FileCheck %s --check-prefix=SPLIT
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17 #
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18 # Test a permutation where foo.cold is very far from foo. The default ordering does not
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19 # ensure that there will be a gap between foo and foo.cold. Using a symbol ordering
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20 # file guarantees this
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21 # RUN: %clang_host %p/Inputs/split-machine-functions.ll -fsplit-machine-functions -o %t -fuse-ld=lld -Wl,--symbol-ordering-file,%t.split/sym_order_1.txt -Wl,--warn-symbol-ordering -Wl,--fatal-warnings
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22 # RUN: %lldb %t -s %t.split/commands -o exit | FileCheck %s --check-prefix=SPLIT
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23
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24 #--- commands
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25 breakpoint set -n bar
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26 # DEFAULT: Breakpoint 1: where = {{.*}}`bar
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27 # SPLIT: Breakpoint 1: where = {{.*}}`bar
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28
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29 process launch
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30 # DEFAULT: stop reason = breakpoint 1.1
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31 # SPLIT: stop reason = breakpoint 1.1
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32
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33 thread backtrace
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34 # DEFAULT: frame #0: {{.*}}`bar
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35 # DEFAULT: frame #1: {{.*}}`foo() +
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36 # DEFAULT: frame #2: {{.*}}`main +
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37 # SPLIT: frame #0: {{.*}}`bar
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38 # SPLIT: frame #1: {{.*}}`foo() (.cold) +
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39 # SPLIT: frame #2: {{.*}}`main +
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40
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41 #--- sym_order_1.txt
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42 _Z3foov
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43 main
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44 _Z3barv
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45 _Z3bazv
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46 _Z3foov.cold
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