[binutils-gdb] LD: Document use of SOURCE_DATE_EPOCH in Environment section

[Nick Clifton]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=e02f4847761b2d80309b7ca1f7b90b4fb8caf96a

commit e02f4847761b2d80309b7ca1f7b90b4fb8caf96a
Author: Nick Clifton <nickc@redhat.com>
Date:   Mon Sep 23 14:22:57 2024 +0100

    LD: Document use of SOURCE_DATE_EPOCH in Environment section

Diff:
---
 ld/ld.texi | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/ld/ld.texi b/ld/ld.texi
index 89e3913317a..24dcf9db919 100644
--- a/ld/ld.texi
+++ b/ld/ld.texi
@@ -4048,6 +4048,13 @@ a similar fashion by the @code{gcc} linker wrapper program.  The default
 may be overridden by the @samp{--demangle} and @samp{--no-demangle}
 options.
 
+@kindex SOURCE_DATE_EPOCH
+@cindex timestamps
+If the PE/COFF specific @option{--insert-timestamp} is active and the
+@env{SOURCE_DATE_EPOCH} environment variable is defined, then the
+timestamp value in this variable will be inserted into the COFF header
+instead of the current time.
+
 @c man end
 @end ifset