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doc: document SEH changes

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For #57302.
For #61422.

Change-Id: Iee4e6600bf473eb982d0cb7330f7b2c1b48b9e13
Reviewed-on: https://go-review.googlesource.com/c/go/+/548575
Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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qmuntal 2023-12-09 01:03:32 +01:00 committed by Quim Muntal
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commit e872807e2b
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@ -239,6 +239,17 @@ defer func() {
build ID.
</p>
<p><!-- CL 534555 -->
On Windows, when building with <code>-linkmode=internal</code>, the linker now
preserves SEH information from C object files by copying the <code>.pdata</code>
and <code>.xdata</code> sections into the final binary.
This helps with debugging and profiling binaries using native tools, such as WinDbg.
Note that until now, C functions' SEH exception handlers were not being honored,
so this change may cause some programs to behave differently.
<code>-linkmode=external</code> is not affected by this change, as external linkers
already preserve SEH information.
</p>
<h2 id="bootstrap">Bootstrap</h2>
<p>