Add "-z call-nop=PADDING" option to ld

[deliverable/binutils-gdb.git] / ld / ld.texinfo

diff --git a/ld/ld.texinfo b/ld/ld.texinfo
index 63760552a6b8e7ee777fd8a41290c628715d2cb1..0c3a55184cd5c4fbada00e3a22b883a851a58c6c 100644 (file)
--- a/ld/ld.texinfo
+++ b/ld/ld.texinfo
@@ -1199,6 +1199,20 @@ generated by compiler.  Updates on protected data symbols by another
 module aren't visible to the resulting shared library.  Supported for
 i386 and x86-64.
 
+@item call-nop=prefix-addr
+@itemx call-nop=prefix-nop
+@itemx call-nop=suffix-nop
+@itemx call-nop=prefix-@var{byte}
+@itemx call-nop=suffix-@var{byte}
+Specify the 1-byte @code{NOP} padding when transforming indirect call
+to a locally defined function, foo, via its GOT slot.
+@option{call-nop=prefix-addr} generates @code{0x67 call foo}.
+@option{call-nop=prefix-nop} generates @code{0x90 call foo}.
+@option{call-nop=suffix-nop} generates @code{call foo 0x90}.
+@option{call-nop=prefix-@var{byte}} generates @code{@var{byte} call foo}.
+@option{call-nop=suffix-@var{byte}} generates @code{call foo @var{byte}}.
+Supported for i386 and x86_64.
+
 @end table
 
 Other keywords are ignored for Solaris compatibility.