Public bug reported:
This concerns llvm-toolchain-18 version 1:18.1.8-11 in Ubuntu oracular.
A build of this package in a container environment fails with
[...]
dh_install --fail-missing
dh_install: warning: Please use dh_missing --list-missing/--fail-missing instead
dh_install: warning: This feature will be removed in compat 12.
dh_install: warning: Cannot find (any matches for)
"/usr/lib/llvm-18/lib/libbolt_rt_hugify.a" (tried in ., debian/tmp)
dh_install: warning: libbolt-18-dev missing files:
/usr/lib/llvm-18/lib/libbolt_rt_hugify.a
dh_install: warning: Cannot find (any matches for)
"/usr/lib/llvm-18/lib/libbolt_rt_instr.a" (tried in ., debian/tmp)
dh_install: warning: libbolt-18-dev missing files:
/usr/lib/llvm-18/lib/libbolt_rt_instr.a
dh_install: error: missing files, aborting
make[1]: *** [debian/rules:1461: override_dh_install] Error 25
make[1]: Leaving directory '/external/tmp/llvm-toolchain-18-18.1.8'
make: *** [debian/rules:597: binary] Error 2
dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2
Command exited with non-zero status 2
The libraries at issue are not built due to the following check in
bolt/CMakeLists.txt:
if (BOLT_ENABLE_RUNTIME)
# Some systems prevent reading /proc/self/map_files
execute_process(COMMAND ls /proc/self/map_files
RESULT_VARIABLE LS OUTPUT_QUIET ERROR_QUIET)
if (LS)
set(BOLT_ENABLE_RUNTIME OFF)
message(WARNING
"BOLT runtime is disabled as /proc/self/map_files is unreadable.")
endif()
endif()
That proc file is not accessible in the container environment:
$ ls -l /proc/self/map_files
ls: reading directory '/proc/self/map_files': Operation not permitted
However, the access does not appear to be necessary. Commenting out the set()
statement allows the build to complete successfully. This modification should
be included in the package's patches.
** Affects: llvm-toolchain-18 (Ubuntu)
Importance: Undecided
Status: New
** Tags: oracular
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https://bugs.launchpad.net/bugs/2084316
Title:
FTBFS due to unreadable /proc/self/map_files
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