From ab502e635e78a6c6c9c8abf3072bfeedaca9c26f Mon Sep 17 00:00:00 2001 From: Alan Modra Date: Tue, 19 Sep 2017 11:45:51 +0930 Subject: [PATCH] [GOLD, PowerPC] Add --no-stub-group-multi The trouble with stubs per output section is that ppc32 uses a plt stub as the address of a global function. This needs to be unique, otherwise we'll get multiple addresses for a function. Obviously this is only a partial solution, since ppc32 will get multiple stubs when code is larger than 33M. A proper fix will involve selecting a unique stub to use for non-branch relocs. * options.h (stub-group-multi): Default to true. Add --no-stub-group-multi. --- gold/ChangeLog | 5 +++++ gold/options.h | 5 +++-- 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/gold/ChangeLog b/gold/ChangeLog index 2343215..867cbef 100644 --- a/gold/ChangeLog +++ b/gold/ChangeLog @@ -1,3 +1,8 @@ +2017-09-19 Alan Modra + + * options.h (stub-group-multi): Default to true. Add + --no-stub-group-multi. + 2017-08-30 Alan Modra * powerpc.cc (Target_powerpc::Relocate::relocate): Nop addis on diff --git a/gold/options.h b/gold/options.h index 6d10b41..93f81b2 100644 --- a/gold/options.h +++ b/gold/options.h @@ -1235,9 +1235,10 @@ class General_options "stubs are always after the group. 1 means use default size"), N_("SIZE")); - DEFINE_bool(stub_group_multi, options::TWO_DASHES, '\0', false, + DEFINE_bool(stub_group_multi, options::TWO_DASHES, '\0', true, N_("(PowerPC only) Allow a group of stubs to serve multiple " - "output sections"), NULL); + "output sections"), + N_("(PowerPC only) Each output section has its own stubs")); DEFINE_uint(split_stack_adjust_size, options::TWO_DASHES, '\0', 0x4000, N_("Stack size when -fsplit-stack function calls non-split"), -- 2.7.4