doc: document SEH changes

For golang#57302. For golang#61422. Change-Id: Iee4e6600bf473eb982d0cb7330f7b2c1b48b9e13 Reviewed-on: https://go-review.googlesource.com/c/go/+/548575 Reviewed-by: Cherry Mui <[email protected]> LUCI-TryBot-Result: Go LUCI <[email protected]> Reviewed-by: Than McIntosh <[email protected]> Reviewed-by: Dmitri Shuralyov <[email protected]>
ezz-no · Feb 17, 2024 · b0b7810 · b0b7810
1 parent 52ef207
commit b0b7810
Showing 1 changed file with 11 additions and 0 deletions.
diff --git a/doc/go1.22.html b/doc/go1.22.html
@@ -239,6 +239,17 @@ <h2 id="linker">Linker</h2>
   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>