Package: bolt-19
Version: 1:19.1.7-1+b1
Severity: important
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Unless i'm doing something really wrong,
the bolt instrumentation is non-usable in debian's bolt:
```
$ cat test.c
int main() { return 0; }
$ clang-19 -Wl,-q test.c
$ llvm-bolt-19 a.out -instrument -o a.out.2
BOLT-INFO: shared object or position-independent executable detected
BOLT-INFO: Target architecture: x86_64
BOLT-INFO: BOLT version: <unknown>
BOLT-INFO: first alloc address is 0x0
BOLT-INFO: creating new program header table at address 0x200000, offset
0x200000
BOLT-INFO: enabling relocation mode
BOLT-INFO: forcing -jump-tables=move for instrumentation
BOLT-INFO: enabling lite mode
BOLT-INFO: 0 out of 9 functions in the binary (0.0%) have non-empty execution
profile
BOLT-INSTRUMENTER: Number of indirect call site descriptors: 2
BOLT-INSTRUMENTER: Number of indirect call target descriptors: 6
BOLT-INSTRUMENTER: Number of function descriptors: 6
BOLT-INSTRUMENTER: Number of branch counters: 3
BOLT-INSTRUMENTER: Number of ST leaf node counters: 10
BOLT-INSTRUMENTER: Number of direct call counters: 0
BOLT-INSTRUMENTER: Total number of counters: 13
BOLT-INSTRUMENTER: Total size of counters: 104 bytes (static alloc memory)
BOLT-INSTRUMENTER: Total size of string table emitted: 129 bytes in file
BOLT-INSTRUMENTER: Total size of descriptors: 732 bytes in file
BOLT-INSTRUMENTER: Profile will be saved to file /tmp/prof.fdata
BOLT-INFO: UCE removed 3 blocks and 140 bytes of code
BOLT-INFO: padding code to 0x600000 to accommodate hot text
BOLT-ERROR: library not found: /usr/lib/libbolt_rt_instr.a
$ dpkg -L libbolt-19-dev | grep ".a$"
/usr/lib/llvm-19/lib/libbolt_rt_hugify.a
/usr/lib/llvm-19/lib/libbolt_rt_instr.a
```
I'm guessing bolt hardcodes expected paths somewhere,
and does not pick them up from CMake?
Roman.
- -- System Information:
Debian Release: trixie/sid
APT prefers unstable
APT policy: (990, 'unstable'), (500, 'unstable-debug'), (1,
'experimental-debug'), (1, 'experimental')
Architecture: amd64 (x86_64)
Kernel: Linux 6.12.12-amd64 (SMP w/32 CPU threads; PREEMPT)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages bolt-19 depends on:
ii libbolt-19-dev 1:19.1.7-1+b1
ii libc6 2.40-6
ii libgcc-s1 14.2.0-16
ii libstdc++6 14.2.0-16
ii libz3-4 4.13.3-1
ii libzstd1 1.5.6+dfsg-2
ii zlib1g 1:1.3.dfsg+really1.3.1-1+b1
bolt-19 recommends no packages.
bolt-19 suggests no packages.
- -- no debconf information
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