libasan missing debug symbols break debugging

Bug #1894166 reported by Aleksandar Nikolic
10
This bug affects 1 person
Affects Status Importance Assigned to Milestone
gcc-10 (Ubuntu)
Fix Released
Undecided
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Focal
Fix Released
Undecided
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Groovy
Fix Released
Undecided
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gcc-9 (Ubuntu)
Fix Released
Undecided
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Focal
Fix Released
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Groovy
Fix Committed
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Bug Description

By default, all symbols are missing from libasan binary that is installed with this package. This, among other things, effectively breaks debugging with gdb (and LLDB , but that doesn't matter).

To be able to catch ASAN errors in GDB , one would break on "__sanitizer::Die" and go from there, but without symbols, this won't work. Other tools rely on symbol lookups to determine instrumentation presence , which would fail in this case as well.

For example, without libasan5-dbgsym installed:

(gdb) break __sanitizer::Die
Function "__sanitizer::Die" not defined.
Make breakpoint pending on future shared library load? (y or [n]) y
Breakpoint 1 (__sanitizer::Die) pending.
(gdb) r
...
ASAN REPORT
...
==1802381==ABORTING
[Inferior 1 (process 1802381) exited with code 01]

However, with libasan5-dbgsym installed:

(gdb) break __sanitizer::Die
Breakpoint 1 at 0x7ffff76bc200: file ../../../../src/libsanitizer/sanitizer_common/sanitizer_termination.cc, line 49.
(gdb) r
...
ASAN REPORT
...
==1805058==ABORTING

Breakpoint 1, __sanitizer::Die () at ../../../../src/libsanitizer/sanitizer_common/sanitizer_termination.cc:49
49 ../../../../src/libsanitizer/sanitizer_common/sanitizer_termination.cc: No such file or directory.
(gdb) bt
#0 __sanitizer::Die () at ../../../../src/libsanitizer/sanitizer_common/sanitizer_termination.cc:49
#1 0x00007ffff769d8ec in __asan::ScopedInErrorReport::~ScopedInErrorReport (this=0x7fffffffd156, __in_chrg=<optimized out>)
    at ../../../../src/libsanitizer/asan/asan_report.cc:185
#2 0x00007ffff769d363 in __asan::ReportGenericError (pc=93824992236075, bp=bp@entry=140737488346576, sp=sp@entry=140737488346560, addr=106034152603909,
    is_write=is_write@entry=false, access_size=access_size@entry=1, exp=0, fatal=true) at ../../../../src/libsanitizer/asan/asan_report.cc:192
#3 0x00007ffff769de4b in __asan::__asan_report_load1 (addr=<optimized out>) at ../../../../src/libsanitizer/asan/asan_rtl.cc:116
#4 0x000055555555522b in main ()
(gdb)

In this example, it's fairly obvious that missing symbols will prevent one to put a breakpoint on __sanitizer::Die , but as I mentioned, checks in other tools would fail silently and the issue isn't immediately traceable back to missing symbols.

Since AddressSanitizer is primarily used for debugging anyway, would it make sense to have libasan with symbols by default?

Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package gcc-10 - 10.2.0-19ubuntu3

---------------
gcc-10 (10.2.0-19ubuntu3) hirsute; urgency=medium

  * Update to git 20201129 from the gcc-10 branch.
    - Fix PR target/97528 (ARM), PR debug/97599, PR c/97958, PR fortran/85796,
      PR libstdc++/98001, PR libstdc++/97935, PR target/97939 (SPARC),
      PR target/96607 (SPARC).
  * Don't strip the sanitizer libraries, these are only used for debugging.
    LP: #1894166.
  * Don't run the libgphobos-link test on powerpc architectures.
  * Install libstdc++6 gdb pretty printer files in /usr/share/gcc (unversioned).
  * Re-enable the lto build on arm64.

gcc-10 (10.2.0-19ubuntu2) hirsute; urgency=medium

  * Disable the lto build on arm64 for now, builds still not
    succeeding on the buildds.

gcc-10 (10.2.0-19ubuntu1) hirsute; urgency=medium

  * Merge with Debian; remaining changes:
    - Build from upstream sources.
  * Don't run the testsuite on armhf and arm64, better chances for
    a succeeding build on the buildds.

gcc-10 (10.2.0-19) unstable; urgency=medium

  * Update to git 20201125 from the gcc-10 branch.
    - Fix PR target/97730 (AArch64), PR target/97887 (x86), PR d/97889,
      PR d/97843, PR d/97842, PR libstdc++/92546, PR libstdc++/97876,
      PR libstdc++/95989, PR libstdc++/97869, PR c++/97918, PR debug/97060,
      PR target/97534 (ARM), PR c++/96805, PR c++/96199.
  * Configure again with --enable-checking=release.
  * Enable again pgo and lto builds for 64bit architectures.

gcc-10 (10.2.0-18ubuntu1) hirsute; urgency=medium

  * Merge with Debian; remaining changes:
    - Build from upstream sources.

gcc-10 (10.2.0-18) unstable; urgency=medium

  * Update to git 20201118 from the gcc-10 branch.
    - Fix PR target/97535 (AArch64), PR target/97682 (RISCV), PR c/97748,
      PR c++/97790, PR c/97748, PR c++/67453, PR c++/97663, PR fortran/97782,
      PR fortran/95847, PR fortran/97768, PR libstdc++/97828,
      PR libstdc++/93456, PR libstdc++/97798, PR libstdc++/96042,
      PR libstdc++/96042, PR libstdc++/96042.
  * Update VCS attributes.
  * Add an autopkg test for linking libphobos.
  * Build the gcn offload compiler using LLVM 11, and work around the
    broken as in LLVM 11. See also LLVM Bug 48201 for this issue and
    https://reviews.llvm.org/D73999 for the patch causing the issue.
  * Fix PR target/97528, proposed patch. Closes: #972665.

 -- Matthias Klose <email address hidden> Sun, 29 Nov 2020 09:50:30 +0100

Changed in gcc-10 (Ubuntu):
status: New → Fix Released
Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package gcc-9 - 9.3.0-23ubuntu1

---------------
gcc-9 (9.3.0-23ubuntu1) hirsute; urgency=medium

  * Merge with Debian; remaining changes:
    - Build from upstream sources.

gcc-9 (9.3.0-23) experimental; urgency=medium

  * Update to git 20210316 from the gcc-9 branch.
    - Fix PR go/99458, PR target/85074 (PA), PR target/99234 (x86),
      PR target/99234 (x86), PR ada/99264, PR c/99137, PR c++/98810,
      PR c++/95675, PR c++/90333, PR d/99337, PR fortran/99124,
      PR fortran/99060, PR libfortran/99218, PR fortran/99545.
  * Don't strip the sanitizer libraries, these are only used for debugging.
    LP: #1894166.
  * Fix --as-needed specs for -fsanitize=* options for backports.
    LP: #1896458.
  * Revert the PR ada/99264 fix, causing an ABI breakage in libgnat.
  * debian/ada/check_ali_update.sh: Fix syntax errors.
    Always run the script.
  * Fix lib*gcc* dependencies for backports.

gcc-9 (9.3.0-22) unstable; urgency=medium

  * Update to git 20210207 from the gcc-9 branch.
    - Fix PR tree-optimization/97236, PR target/97528 (ARM), PR d/98921.
  * Revert the fix for PR c++/95158, causing PR target/98032.

 -- Matthias Klose <email address hidden> Tue, 16 Mar 2021 10:58:28 +0100

Changed in gcc-9 (Ubuntu):
status: New → Fix Released
Revision history for this message
Łukasz Zemczak (sil2100) wrote : Please test proposed package

Hello Aleksandar, or anyone else affected,

Accepted gcc-10 into groovy-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/gcc-10/10.3.0-1ubuntu1~20.10 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, what testing has been performed on the package and change the tag from verification-needed-groovy to verification-done-groovy. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-groovy. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.

Changed in gcc-10 (Ubuntu Groovy):
status: New → Fix Committed
tags: added: verification-needed verification-needed-groovy
Revision history for this message
Łukasz Zemczak (sil2100) wrote :

Hello Aleksandar, or anyone else affected,

Accepted gcc-9 into groovy-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/gcc-9/9.4.0-1ubuntu1~20.10 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, what testing has been performed on the package and change the tag from verification-needed-groovy to verification-done-groovy. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-groovy. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.

Changed in gcc-9 (Ubuntu Groovy):
status: New → Fix Committed
Revision history for this message
Łukasz Zemczak (sil2100) wrote :

Hello Aleksandar, or anyone else affected,

Accepted gcc-10 into focal-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/gcc-10/10.3.0-1ubuntu1~20.04 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, what testing has been performed on the package and change the tag from verification-needed-focal to verification-done-focal. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-focal. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.

Changed in gcc-10 (Ubuntu Focal):
status: New → Fix Committed
tags: added: verification-needed-focal
Revision history for this message
Launchpad Janitor (janitor) wrote :
Download full text (19.7 KiB)

This bug was fixed in the package gcc-10 - 10.3.0-1ubuntu1~20.10

---------------
gcc-10 (10.3.0-1ubuntu1~20.10) groovy-proposed; urgency=medium

  * SRU: LP: #1930125: Update to the GCC 10.3.0 release.

gcc-10 (10.3.0-1ubuntu1) hirsute; urgency=medium

  * Merge with Debian; remaining changes:
    - Build from upstream sources.

gcc-10 (10.3.0-1) experimental; urgency=medium

  * GCC 10.3.0 release.
  * Refresh patches.
  * Fix PR target/99773 (ARM), taken from the trunk.

gcc-10 (10.2.1-24ubuntu1) hirsute; urgency=medium

  * Merge with Debian; remaining changes:
    - Build from upstream sources.

gcc-10 (10.2.1-24) experimental; urgency=medium

  * GCC 10.3.0 release candidate.
  * Update to git 20210401 from the gcc-10 branch.
    - Fix PR target/99563 (x86), PR target/99542 (AArch64), PR ipa/99517,
      PR middle-end/93235, PR target/99085, PR tree-optimization/99225,
      PR tree-optimization/99204, PR ipa/99034, PR tree-optimization/99079,
      PR c++/99035, PR middle-end/99007, PR middle-end/97487,
      PR middle-end/97971, PR tree-optimization/98287, PR middle-end/99641,
      PR ipa/98078, PR c/99224, PR tree-optimization/99253, PR fortran/97927,
      PR rtl-optimization/98791, PR c/99324, PR c/99136, PR c++/99613,
      PR c++/99507, PR c++/88146, PR c++/99362, PR c++/82959, PR c++/95451,
      PR sanitizer/99106, PR c++/97742, PR c++/99033, PR c++/98988,
      PR c++/99031, PR c++/97878, PR fortran/99205, PR fortran/99545,
      PR libstdc++/99181, PR ipa/99466, PR tree-optimization/96974,
      PR target/97329 (PPC), PR target/99540 (AArch64), PR target/99704 (x86),
      PR tree-optimization/98834, PR lto/96591, PR tree-optimization/99694,
      PR target/99702 (RISCV), PR target/44107, PR target/48097,
      PR objc++/49070, PR c++/99047, PR c++/98704, PR c++/98480, PR c++/96749,
      PR c++/98118, PR c++/95616, PR c++/95615, PR c++/97587, PR c++/95822,
      PR c++/96251, PR fortran/93660, PR fortran/99369, PR fortran/99688,
      PR tree-optimization/99777, PR debug/99334, PR debug/99388,
      PR tree-optimization/99824, PR target/97252 (ARM), PR c++/99062,
      PR ipa/98265, PR rtl-optimization/96264, PR tree-optimization/97849,
      PR target/99813 (AArch64), PR target/99753 (x86), PR target/95842 (x86),
      PR target/99037 (AArch64), PR c++/98990, PR c++/95468, PR c++/98611,
      PR c++/96531, PR c++/97103.
    - Replace @tie{} string with a space in the man pages. LP: #1405685.

gcc-10 (10.2.1-23ubuntu2) hirsute; urgency=medium

  * Update to git 20210320 from the gcc-10 branch.
    - Fix PR target/99563 (x86), PR target/99542 (AArch64), PR ipa/99517,
      PR middle-end/93235, PR target/99085, PR tree-optimization/99225,
      PR tree-optimization/99204, PR ipa/99034, PR tree-optimization/99079,
      PR c++/99035, PR middle-end/99007, PR middle-end/97487,
      PR middle-end/97971, PR tree-optimization/98287, PR middle-end/99641,
      PR ipa/98078, PR c/99224, PR tree-optimization/99253, PR fortran/97927,
      PR rtl-optimization/98791, PR c/99324, PR c/99136, PR c++/99613,
      PR c++/99507, PR c++/88146, PR c++/99362, PR c++/82959, PR c++/95451,
      PR sanitizer/99106, PR c++/97742, PR c++/99033, PR ...

Changed in gcc-10 (Ubuntu Groovy):
status: Fix Committed → Fix Released
Revision history for this message
Launchpad Janitor (janitor) wrote :
Download full text (24.2 KiB)

This bug was fixed in the package gcc-10 - 10.3.0-1ubuntu1~20.04

---------------
gcc-10 (10.3.0-1ubuntu1~20.04) focal-proposed; urgency=medium

  * SRU: LP: #1930125: Update to the GCC 10.3.0 release.

gcc-10 (10.3.0-1ubuntu1) hirsute; urgency=medium

  * Merge with Debian; remaining changes:
    - Build from upstream sources.

gcc-10 (10.3.0-1) experimental; urgency=medium

  * GCC 10.3.0 release.
  * Refresh patches.
  * Fix PR target/99773 (ARM), taken from the trunk.

gcc-10 (10.2.1-24ubuntu1) hirsute; urgency=medium

  * Merge with Debian; remaining changes:
    - Build from upstream sources.

gcc-10 (10.2.1-24) experimental; urgency=medium

  * GCC 10.3.0 release candidate.
  * Update to git 20210401 from the gcc-10 branch.
    - Fix PR target/99563 (x86), PR target/99542 (AArch64), PR ipa/99517,
      PR middle-end/93235, PR target/99085, PR tree-optimization/99225,
      PR tree-optimization/99204, PR ipa/99034, PR tree-optimization/99079,
      PR c++/99035, PR middle-end/99007, PR middle-end/97487,
      PR middle-end/97971, PR tree-optimization/98287, PR middle-end/99641,
      PR ipa/98078, PR c/99224, PR tree-optimization/99253, PR fortran/97927,
      PR rtl-optimization/98791, PR c/99324, PR c/99136, PR c++/99613,
      PR c++/99507, PR c++/88146, PR c++/99362, PR c++/82959, PR c++/95451,
      PR sanitizer/99106, PR c++/97742, PR c++/99033, PR c++/98988,
      PR c++/99031, PR c++/97878, PR fortran/99205, PR fortran/99545,
      PR libstdc++/99181, PR ipa/99466, PR tree-optimization/96974,
      PR target/97329 (PPC), PR target/99540 (AArch64), PR target/99704 (x86),
      PR tree-optimization/98834, PR lto/96591, PR tree-optimization/99694,
      PR target/99702 (RISCV), PR target/44107, PR target/48097,
      PR objc++/49070, PR c++/99047, PR c++/98704, PR c++/98480, PR c++/96749,
      PR c++/98118, PR c++/95616, PR c++/95615, PR c++/97587, PR c++/95822,
      PR c++/96251, PR fortran/93660, PR fortran/99369, PR fortran/99688,
      PR tree-optimization/99777, PR debug/99334, PR debug/99388,
      PR tree-optimization/99824, PR target/97252 (ARM), PR c++/99062,
      PR ipa/98265, PR rtl-optimization/96264, PR tree-optimization/97849,
      PR target/99813 (AArch64), PR target/99753 (x86), PR target/95842 (x86),
      PR target/99037 (AArch64), PR c++/98990, PR c++/95468, PR c++/98611,
      PR c++/96531, PR c++/97103.
    - Replace @tie{} string with a space in the man pages. LP: #1405685.

gcc-10 (10.2.1-23ubuntu2) hirsute; urgency=medium

  * Update to git 20210320 from the gcc-10 branch.
    - Fix PR target/99563 (x86), PR target/99542 (AArch64), PR ipa/99517,
      PR middle-end/93235, PR target/99085, PR tree-optimization/99225,
      PR tree-optimization/99204, PR ipa/99034, PR tree-optimization/99079,
      PR c++/99035, PR middle-end/99007, PR middle-end/97487,
      PR middle-end/97971, PR tree-optimization/98287, PR middle-end/99641,
      PR ipa/98078, PR c/99224, PR tree-optimization/99253, PR fortran/97927,
      PR rtl-optimization/98791, PR c/99324, PR c/99136, PR c++/99613,
      PR c++/99507, PR c++/88146, PR c++/99362, PR c++/82959, PR c++/95451,
      PR sanitizer/99106, PR c++/97742, PR c++/99033, PR c...

Changed in gcc-10 (Ubuntu Focal):
status: Fix Committed → Fix Released
Revision history for this message
Łukasz Zemczak (sil2100) wrote :

Hello Aleksandar, or anyone else affected,

Accepted gcc-9 into focal-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/gcc-9/9.4.0-1ubuntu1~20.04 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, what testing has been performed on the package and change the tag from verification-needed-focal to verification-done-focal. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-focal. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.

Changed in gcc-9 (Ubuntu Focal):
status: New → Fix Committed
Revision history for this message
Brian Murray (brian-murray) wrote : [gcc-9/focal] verification still needed

The fix for this bug has been awaiting testing feedback in the -proposed repository for focal for more than 90 days. Please test this fix and update the bug appropriately with the results. In the event that the fix for this bug is still not verified 15 days from now, the package will be removed from the -proposed repository.

tags: added: removal-candidate
Revision history for this message
Launchpad Janitor (janitor) wrote :
Download full text (11.3 KiB)

This bug was fixed in the package gcc-9 - 9.4.0-1ubuntu1~20.04

---------------
gcc-9 (9.4.0-1ubuntu1~20.04) focal-proposed; urgency=medium

  * SRU: LP: #1930125. Update to the GCC 9.4.0 release.

gcc-9 (9.4.0-1ubuntu1) impish; urgency=medium

  * GCC 9.4.0 release.

gcc-9 (9.4.0-1) unstable; urgency=medium

  * GCC 9.4.0 release.
  * Refresh patches.

gcc-9 (9.3.0-26ubuntu1) impish; urgency=medium

  * Merge with Debian; remaining changes:
    - Build from upstream sources.

gcc-9 (9.3.0-26) experimental; urgency=medium

  * GCC 9.4.0 release candidate 2.
  * Update to git 20210527 from the gcc-9 branch.
    - Fix PR c++/97938, PR c++/52625, PR c++/80456, PR sanitizer/100379,
      PR c++/100797, PR c++/95719.
  * Drop the PR bootstrap/87338 patch, applied upstream.

gcc-9 (9.3.0-25ubuntu1) impish; urgency=medium

  * Merge with Debian; remaining changes:
    - Build from upstream sources.

gcc-9 (9.3.0-25) experimental; urgency=medium

  * GCC 9.4.0 release candidate.
  * Update to git 20210519 from the gcc-9 branch.
    - Fix PR target/97865 (Darwin), PR target/44107 (Darwin),
      PR target/48097 (Darwin), PR tree-optimization/92608, PR bootstrap/87338,
      PR target/100182 (x86), PR tree-optimization/99954,
      PR rtl-optimization/99929, PR target/98136 (AArch64),
      PR rtl-optimization/96796, PR tree-optimization/98302,
      PR middle-end/95694, PR c++/95719, PR fortran/100154,
      PR target/98952 (PPC), PR libstdc++/100259, PR target/99988 (AArch64),
      PR target/99037 (AArch64), PR target/100441 (AArch64),
      PR rtl-optimization/100225, PR rtl-optimization/84878,
      PR target/100402 (x86), PR rtl-optimization/100263,
      PR tree-optimization/98786, PR rtl-optimization/100230,
      PR tree-optimization/100053, PR rtl-optimization/98144,
      PR target/100375 (nvptx), PR target/100302 (AArch64),
      PR rtl-optimization/100254, PR debug/100255, PR rtl-optimization/100148,
      PR tree-optimization/91914, PR fortran/100274, PR c/100450,
      PR rtl-optimization/80960, PR tree-optimization/96513,
      PR tree-optimization/96597, PR tree-optimization/88240,
      PR tree-optimization/100566.
  * Fix running the libstdc++-v3 tests against the installed libstdc++6,
    when the libstdc++6 package is not built from this source.
  * Don't apply the arm-multilib-soft patch when building without
    armhf/armsf multilib packages.

gcc-9 (9.3.0-24ubuntu1) impish; urgency=medium

  * Merge with Debian; remaining changes:
    - Build from upstream sources.

gcc-9 (9.3.0-24) experimental; urgency=medium

  * Update to git 20210422 from the gcc-9 branch.
    - Fix PR driver/47785, PR tree-optimization/99694, PR c/99224, PR lto/96591,
      PR tree-optimization/97009, PR tree-optimization/99856, PR ipa/99466,
      PR target/97329 (PPC), PR target/99704 (x86), PR target/99702 (RISCV),
      PR ipa/98078, PR tree-optimization/98758, PR tree-optimization/98282,
      PR tree-optimization/93964, PR fortran/99840, PR fortran/99688,
      PR fortran/99545, PR lto/96385, PR bootstrap/99983, PR libstdc++/99985,
      PR libstdc++/96029, PR libstdc++/96029, PR target/99767, PR lto/99849,
      PR rtl-optimization/99905, PR debug/9...

Changed in gcc-9 (Ubuntu Focal):
status: Fix Committed → Fix Released
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