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Nim Compiler User Guide: Add explanations about lto and strip (#23227)

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Tomohiro
2024-01-19 05:25:31 +09:00
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parent cfd69bad1a
commit 527d1e1977
1 changed files with 10 additions and 3 deletions
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doc/nimc.md
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@@ -552,6 +552,13 @@ Define Effect
`globalSymbols` Load all `{.dynlib.}` libraries with the `RTLD_GLOBAL`:c:
flag on Posix systems to resolve symbols in subsequently
loaded libraries.
`lto` Enable link-time optimization in the backend compiler and
linker.
`lto_incremental` Enable link-time optimization and additionally enable
incremental linking for compilers that support it.
Currently only clang and vcc.
`strip` Strip debug symbols added by the backend compiler from
the executable.
====================== =========================================================
@@ -677,11 +684,11 @@ additional flags to both the Nim compiler and the C compiler and/or linker
to optimize the build for size. For example, the following flags can be used
when targeting a gcc compiler:
`--opt:size --passC:-flto --passL:-flto`:option:
`--opt:size -d:lto -d:strip`:option:
The `--opt:size`:option: flag instructs Nim to optimize code generation for small
size (with the help of the C compiler), the `-flto`:option: flags enable link-time
optimization in the compiler and linker.
size (with the help of the C compiler), the `-d:lto`:option: flags enable link-time
optimization in the compiler and linker, the `-d:strip`:option: strips debug symbols.
Check the [Cross-compilation] section for instructions on how to compile the
program for your target.