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<base href="https://bugs.llvm.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - KCOV broke when LTO enabled: inlinable function call in a function with debug info must have a !dbg location"
href="https://bugs.llvm.org/show_bug.cgi?id=39531">39531</a>
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<th>Summary</th>
<td>KCOV broke when LTO enabled: inlinable function call in a function with debug info must have a !dbg location
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Static Analyzer
</td>
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<th>Assignee</th>
<td>dcoughlin@apple.com
</td>
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<th>Reporter</th>
<td>joeyjiaojg@163.com
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</tr>
<tr>
<th>CC</th>
<td>dcoughlin@apple.com, llvm-bugs@lists.llvm.org
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<pre>Created <span class=""><a href="attachment.cgi?id=21069" name="attach_21069" title="IR for kcov.c which contains __sanitizer_cov_trace_pc">attachment 21069</a> <a href="attachment.cgi?id=21069&action=edit" title="IR for kcov.c which contains __sanitizer_cov_trace_pc">[details]</a></span>
IR for kcov.c which contains __sanitizer_cov_trace_pc
When I'm building linux kernel with clang and LTO enabled for CONFIG_KOV=y, I'm
facing below error: (I added --verbose to ld in order to show where it stopped)
The make failed at ld stage inside kernel/script/link-vmlinux.sh: ${LD}
--verbose ${LDFLAGS} -r -o ${1} $(modversions) ${objects}
==Build Log==
aarch64-linux-android-ld.gold: Closed descriptor 11 for
"net/ipc_router/ipc_router_socket.o"
aarch64-linux-android-ld.gold: Opened new descriptor 12 for
"net/ipc_router/ipc_router_security.o"
aarch64-linux-android-ld.gold: Attempt to open
net/ipc_router/ipc_router_security.o succeeded
aarch64-linux-android-ld.gold: Unlocking file
"net/ipc_router/ipc_router_security.o"
aarch64-linux-android-ld.gold: Released descriptor 12 for
"net/ipc_router/ipc_router_security.o"
inlinable function call in a function with debug info must have a !dbg location
call void @__sanitizer_cov_trace_pc()
inlinable function call in a function with debug info must have a !dbg location
call void @__sanitizer_cov_trace_pc()
inlinable function call in a function with debug info must have a !dbg location
call void @__sanitizer_cov_trace_pc()
inlinable function call in a function with debug info must have a !dbg location
call void @__sanitizer_cov_trace_pc()
inlinable function call in a function with debug info must have a !dbg location
call void @__sanitizer_cov_trace_pc()
inlinable function call in a function with debug info must have a !dbg location
call void @__sanitizer_cov_trace_pc()
LLVM ERROR: Broken module found, compilation aborted!
make[1]: *** [vmlinux] Error 1
make[1]: Leaving directory
`/local/mnt/workspace/jiangenj/la/asan/out/target/product/msm8953_64/obj/kernel/msm-4.9'
make: *** [sub-make] Error 2
make: Leaving directory `/local/mnt/workspace/jiangenj/la/asan/kernel/msm-4.9'
ninja: build stopped: subcommand failed.
16:18:10 ninja failed with: exit status 1
Can you help me understand what the issue is actually and how to fix?</pre>
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