[pushed] Objective-C, NeXT: Adjust symbol marking to match host tools.
Commit Message
Current host tools mark some additional symbols as 'no dead strip' and also
expose one additional group to the linker. This does not affect older Darwin
versions or x86_64, but omitting these changes results in link errors for
aarch64.
Tested on i686, x86_64 and a cross to aarch64 Darwin.
pushed to master, thanks,
Iain
Signed-off-by: Iain Sandoe <iain@sandoe.co.uk>
gcc/ChangeLog:
* config/darwin.cc (darwin_label_is_anonymous_local_objc_name): Make
protocol class methods linker-visible.
gcc/objc/ChangeLog:
* objc-next-runtime-abi-02.cc (next_runtime_abi_02_protocol_decl): Do
not dead-strip the runtime meta-data symbols.
(build_v2_classrefs_table): Likewise.
(build_v2_protocol_list_address_table): Likewise.
---
gcc/config/darwin.cc | 2 ++
gcc/objc/objc-next-runtime-abi-02.cc | 6 ++++--
2 files changed, 6 insertions(+), 2 deletions(-)
@@ -1936,6 +1936,8 @@ darwin_label_is_anonymous_local_objc_name (const char *name)
}
else if (startswith ((const char *)p, "ClassMethods"))
return false;
+ else if (startswith ((const char *)p, "ClassProtocols"))
+ return false;
else if (startswith ((const char *)p, "Instance"))
{
if (p[8] == 'I' || p[8] == 'M')
@@ -1033,6 +1033,7 @@ next_runtime_abi_02_protocol_decl (tree p)
else
decl = start_var_decl (objc_v2_protocol_template, buf);
OBJCMETA (decl, objc_meta, meta_protocol);
+ DECL_PRESERVE_P (decl) = 1;
return decl;
}
@@ -2115,8 +2116,8 @@ build_v2_classrefs_table (void)
expr = convert (objc_class_type, build_fold_addr_expr (expr));
}
/* The runtime wants this, even if it appears unused, so we must force the
- output.
- DECL_PRESERVE_P (decl) = 1; */
+ output. */
+ DECL_PRESERVE_P (decl) = 1;
finish_var_decl (decl, expr);
}
}
@@ -2318,6 +2319,7 @@ build_v2_protocol_list_address_table (void)
expr = convert (objc_protocol_type, build_fold_addr_expr (ref->refdecl));
OBJCMETA (decl, objc_meta, meta_label_protocollist);
finish_var_decl (decl, expr);
+ DECL_PRESERVE_P (decl) = 1;
}
/* TODO: delete the vec. */