a7b58e74a0
%T has been deprecated for about seven years, mostly because it is not unique to each test which can lead to races. This patch updates the few remaining tests in lldb that use %T to not use it (either directly using files or creating their own temp dir). The eventual goal is to remove support for %T from llvm-lit given few tests use it and it still has racey behavior. This patch errors on the side of creating new temp dirs even when not strictly necessary to avoid needing to update filenames inside filecheck matchers.
92 lines
4.0 KiB
Plaintext
92 lines
4.0 KiB
Plaintext
# REQUIRES: system-linux, lzma, xz
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# We want to keep the symbol "multiplyByThree" in the .dynamic section and not
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# have it put the default .symtab section.
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# RUN: echo "{multiplyByThree;};" > %t.dynmic-symbols.txt
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# RUN: %clang_host -Wl,--dynamic-list=%t.dynmic-symbols.txt -g -o %t.binary %p/Inputs/minidebuginfo-main.c
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# The following section is adapted from GDB's official documentation:
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# http://sourceware.org/gdb/current/onlinedocs/gdb/MiniDebugInfo.html#MiniDebugInfo
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# Extract the dynamic symbols from the main binary, there is no need
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# to also have these in the normal symbol table.
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# IGNORE: llvm-nm -D %t.binary --format=posix --defined-only | awk '{ print $1 }' | sort > %t.dynsyms
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# Extract all the text (i.e. function) symbols from the debuginfo.
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# (Note that we actually also accept "D" symbols, for the benefit
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# of platforms like PowerPC64 that use function descriptors.)
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# IGNORE: llvm-nm %t.binary --format=posix --defined-only | awk '{ if ($2 == "T" || $2 == "t" || $2 == "D") print $1 }' | sort > %t.funcsyms
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# Keep all the function symbols not already in the dynamic symbol
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# table.
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# IGNORE: comm -13 %t.dynsyms %t.funcsyms > %t.keep_symbols
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# The result of the preceeding command can be hardcoded
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# because we know what symbol to keep.
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# RUN: echo "multiplyByFour" > %t.keep_symbols
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# Separate full debug info into debug binary.
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# RUN: llvm-objcopy --only-keep-debug %t.binary %t.debug
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# Copy the full debuginfo, keeping only a minimal set of symbols and
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# removing some unnecessary sections.
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# RUN: llvm-objcopy -S --remove-section .gdb_index --remove-section .comment --keep-symbols=%t.keep_symbols %t.debug %t.mini_debuginfo
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# This command is not from the GDB manual but it slims down embedded minidebug
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# info. On top if that, it ensures that we only have the multiplyByThree symbol
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# in the .dynsym section of the main binary. The bits removing .rela.plt,
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# .rela.dyn and .dynsym sections can be removed once llvm-objcopy
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# --only-keep-debug starts to work.
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# RUN: llvm-objcopy --remove-section=.rela.plt --remove-section=.rela.dyn --remove-section=.rel.plt --remove-section=.rel.dyn \
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# RUN: --remove-section=.gnu.version --remove-section=.gnu.hash --remove-section=.hash --remove-section=.dynsym %t.mini_debuginfo
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# Drop the full debug info from the original binary.
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# RUN: llvm-strip --strip-all -R .comment %t.binary
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# Inject the compressed data into the .gnu_debugdata section of the
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# original binary.
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# RUN: xz --force --keep %t.mini_debuginfo
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# RUN: llvm-objcopy --add-section .gnu_debugdata=%t.mini_debuginfo.xz %t.binary
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# Now run the binary and see that we can set and hit a breakpoint
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# from within the .dynsym section (multiplyByThree) and one from
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# the .symtab section embedded in the .gnu_debugdata section (multiplyByFour).
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# RUN: %lldb -b -o 'b multiplyByThree' -o 'b multiplyByFour' -o 'run' -o 'continue' -o 'breakpoint list -v' %t.binary | FileCheck %s --dump-input-context 20
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# CHECK: (lldb) b multiplyByThree
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# CHECK-NEXT: Breakpoint 1: where = minidebuginfo-set-and-hit-breakpoint.test.tmp.binary`multiplyByThree, address = 0x{{.*}}
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# CHECK: (lldb) b multiplyByFour
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# CHECK-NEXT: Breakpoint 2: where = minidebuginfo-set-and-hit-breakpoint.test.tmp.binary`multiplyByFour, address = 0x{{.*}}
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# CHECK: * thread #1, name = 'minidebuginfo-s', stop reason = breakpoint 1.1
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# CHECK: * thread #1, name = 'minidebuginfo-s', stop reason = breakpoint 2.1
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# CHECK: (lldb) breakpoint list -v
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# CHECK-NEXT: Current breakpoints:
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# CHECK-NEXT: 1: name = 'multiplyByThree'
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# CHECK-NEXT: 1.1:
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# CHECK-NEXT: module = {{.*}}/minidebuginfo-set-and-hit-breakpoint.test.tmp.binary
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# CHECK-NEXT: symbol = multiplyByThree
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# CHECK-NEXT: address = 0x{{.*}}
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# CHECK-NEXT: resolved = true
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# CHECK-NEXT: hardware = false
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# CHECK-NEXT: hit count = 1
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# CHECK: 2: name = 'multiplyByFour'
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# CHECK-NEXT: 2.1:
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# CHECK-NEXT: module = {{.*}}/minidebuginfo-set-and-hit-breakpoint.test.tmp.binary
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# CHECK-NEXT: symbol = multiplyByFour
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# CHECK-NEXT: address = 0x{{.*}}
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# CHECK-NEXT: resolved = true
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# CHECK-NEXT: hardware = false
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# CHECK-NEXT: hit count = 1
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