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| author | Alan Modra <amodra@gmail.com> | 2017-09-19 11:45:51 +0930 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2017-09-19 11:45:51 +0930 |
| commit | ab502e635e78a6c6c9c8abf3072bfeedaca9c26f (patch) | |
| tree | bc79cbc3b66fa62695f97739e09232c4f6008ead | |
| parent | ced154d810b8e6ef10449030ba94fc8e66add468 (diff) | |
| download | gdb-ab502e635e78a6c6c9c8abf3072bfeedaca9c26f.zip gdb-ab502e635e78a6c6c9c8abf3072bfeedaca9c26f.tar.gz gdb-ab502e635e78a6c6c9c8abf3072bfeedaca9c26f.tar.bz2 | |
[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.
| -rw-r--r-- | gold/ChangeLog | 5 | ||||
| -rw-r--r-- | 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 <amodra@gmail.com> + + * options.h (stub-group-multi): Default to true. Add + --no-stub-group-multi. + 2017-08-30 Alan Modra <amodra@gmail.com> * 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"), |