commit 44efe151b6960bab3db0c85354cc4cce1024219d
author hbono@chromium.org <hbono@chromium.org@4ff67af0-8c30-449e-8e8b-ad334ec8d88c> Fri Feb 04 04:35:36 2011 +0000
committer hbono@chromium.org <hbono@chromium.org@4ff67af0-8c30-449e-8e8b-ad334ec8d88c> Fri Feb 04 04:35:36 2011 +0000
tree f7ad8faf928562b891c3b76d8b2a035bfc94ed25
parent a1b5233e6d340f45f4846131fec9d0b92e203ce4

Support the N_PEXT bit of the Mach-O object format.
This change allows us to set the N_PEXT bit to Mach-O object files when a global symbol has a 'private_extern' extension.

BUG=http://www.tortall.net/projects/yasm/ticket/236
TEST=none
Review URL: http://codereview.chromium.org/6347060

git-svn-id: http://src.chromium.org/svn/trunk/deps/third_party/yasm/patched-yasm@73761 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

modules/objfmts/macho/macho-objfmt.c

diff --git a/modules/objfmts/macho/macho-objfmt.c b/modules/objfmts/macho/macho-objfmt.c
index a6f8282..4adb38d 100644
--- a/modules/objfmts/macho/macho-objfmt.c
+++ b/modules/objfmts/macho/macho-objfmt.c
@@ -922,7 +922,26 @@
             }
             /*printf("common symbol %s val %lu\n", name, yasm_intnum_get_uint(val));*/
         } else if (vis & YASM_SYM_GLOBAL) {
-            n_type |= N_EXT;
+            yasm_valparamhead *valparams =
+                yasm_symrec_get_objext_valparams(sym);
+
+            struct macho_global_data {
+                unsigned long flag; /* N_PEXT */
+            } data;
+
+            data.flag = 0;
+
+            if (valparams) {
+                static const yasm_dir_help help[] = {
+                    { "private_extern", 0, yasm_dir_helper_flag_set,
+                      offsetof(struct macho_global_data, flag), N_PEXT },
+                };
+                yasm_dir_helper(sym, yasm_vps_first(valparams),
+                                yasm_symrec_get_decl_line(sym), help, NELEMS(help),
+                                &data, yasm_dir_helper_valparam_warn);
+            }
+
+            n_type |= N_EXT | data.flag;
         }
 
         localbuf = info->buf;