[LLD] Improve --strip-all help text
This is a slight improvement to the help text, as I was slightly
surprised when strip-all did more than remove the symbol table.
Currently, we match gold's help text for strip-all and strip-debug.
I think that the GNU documentation for these options is not particularly
clear. However, I have opted to make only a minor change here and keep
the help text similar to gold's as these are mature options that are
well understood.
ld.bfd (https://sourceware.org/binutils/docs/ld/Options.html) has a
similar implication although it defines strip-debug as a subset of
strip-all. However, felt that noting that strip-all implies strip-debug
is better; because, with the ld.bfd approach you have to read both the
--strip-debug and the --strip-all help text to understand the behaviour
of --strip-all (and the --strip-all help text doesn't indicate that he
--strip-debug help text is related).
Differential Revision: https://reviews.llvm.org/D101890
diff --git a/lld/ELF/Options.td b/lld/ELF/Options.td
index 55bde53..8315ab2 100644
--- a/lld/ELF/Options.td
+++ b/lld/ELF/Options.td
@@ -381,7 +381,7 @@
def start_lib: F<"start-lib">,
HelpText<"Start a grouping of objects that should be treated as if they were together in an archive">;
-def strip_all: F<"strip-all">, HelpText<"Strip all symbols">;
+def strip_all: F<"strip-all">, HelpText<"Strip all symbols. Implies --strip-debug">;
def strip_debug: F<"strip-debug">, HelpText<"Strip debugging information">;
diff --git a/lld/docs/ld.lld.1 b/lld/docs/ld.lld.1
index 37c42a0..c230b19 100644
--- a/lld/docs/ld.lld.1
+++ b/lld/docs/ld.lld.1
@@ -503,6 +503,8 @@
in an archive.
.It Fl -strip-all , Fl s
Strip all symbols.
+Implies
+.Fl -strip-debug .
.It Fl -strip-debug , Fl S
Strip debugging information.
.It Fl -symbol-ordering-file Ns = Ns Ar file
