Teach initfini to build properly on arches where gcc tries to be

sneaky behind our back...
 -Erik

2 files changed, 18 insertions, 0 deletions

diff --git a/extra/scripts/initfini.pl b/extra/scripts/initfini.pl
index 9a5c3ba09..ec6bdb36b 100755
--- a/extra/scripts/initfini.pl
+++ b/extra/scripts/initfini.pl
@@ -81,6 +81,14 @@ while(<INITFINI>) {
 	$omitcrti = 0;
 	next;
     }
+    if (/PROLOG_PAUSES/) {
+	$omitcrti = 1;
+	next;
+    }
+    if (/PROLOG_UNPAUSES/) {
+	$omitcrti = 0;
+	next;
+    }
     if (/PROLOG_ENDS/) {
 	$omitcrti = 1;
 	next;
diff --git a/libc/sysdeps/linux/common/initfini.c b/libc/sysdeps/linux/common/initfini.c
index 9a23c55d0..4f95fbfd1 100644
--- a/libc/sysdeps/linux/common/initfini.c
+++ b/libc/sysdeps/linux/common/initfini.c
@@ -84,6 +84,16 @@ _init (void)
      module which has a constructor; but then user code's constructors
      would come first, and not be profiled.  */
   call_gmon_start ();
+#else
+  asm ("\n/*@_init_PROLOG_PAUSES*/");
+  {
+    /* Let GCC know that _init is not a leaf function by having a dummy
+     * function call here.  We arrange for this call to be omitted from
+     * either crt file.  */
+    extern void i_am_not_a_leaf (void);
+    i_am_not_a_leaf ();
+  }
+  asm ("\n/*@_init_PROLOG_UNPAUSES*/");
 #endif
 
   asm ("ALIGN");