[libc] Keep framepointers for baremetal #121836
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@llvm/pr-subscribers-libc Author: Prabhuk (Prabhuk) ChangesKeep framepointers enabled by default for the default baremetal libc Full diff: https://github.com/llvm/llvm-project/pull/121836.diff 1 Files Affected:
diff --git a/libc/config/baremetal/config.json b/libc/config/baremetal/config.json
index 85e80879d498e6..08c581d1c68226 100644
--- a/libc/config/baremetal/config.json
+++ b/libc/config/baremetal/config.json
@@ -30,10 +30,5 @@
"LIBC_CONF_MATH_OPTIMIZATIONS": {
"value": "(LIBC_MATH_SKIP_ACCURATE_PASS | LIBC_MATH_SMALL_TABLES)"
}
- },
- "codegen": {
- "LIBC_CONF_KEEP_FRAME_POINTER": {
- "value": false
- }
}
}
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petrhosek
approved these changes
Jan 6, 2025
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I don't care either way, but mind putting more info as to why you're reverting this recent addition? |
Frame pointers help unwind the stack and unwinding without frame pointer is complex and increaseis the code size. This code size increase is potentially larger than the savings achieved by disabling frame pointers. Retaining the original behavior of retaining frame pointers as the default behavior.
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Ack. Updated the PR and commit descriptions. |
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Keep framepointers enabled by default for the default baremetal libc
builds.
Frame pointers help unwind the stack and unwinding without frame pointer
is complex and increaseis the code size. This code size increase is
potentially larger than the savings achieved by disabling frame
pointers. Retaining the original behavior of retaining frame pointers as
the default behavior.