svn commit: r306570 - in head/sys/cddl/dev/fbt: . arm powerpc x86

[Mark Johnston]

Author: markj
Date: Sun Oct  2 00:35:00 2016
New Revision: 306570
URL: https://svnweb.freebsd.org/changeset/base/306570

Log:
  Allow tracing of functions prefixed by "__".
  
  This restriction was inherited from upstream but is not relevant on FreeBSD.
  Furthermore, it hindered the tracing of locking primitive subroutines.
  
  MFC after:	1 week

Modified:
  head/sys/cddl/dev/fbt/arm/fbt_isa.c
  head/sys/cddl/dev/fbt/fbt.c
  head/sys/cddl/dev/fbt/powerpc/fbt_isa.c
  head/sys/cddl/dev/fbt/x86/fbt_isa.c

Modified: head/sys/cddl/dev/fbt/arm/fbt_isa.c
==============================================================================
--- head/sys/cddl/dev/fbt/arm/fbt_isa.c	Sat Oct  1 23:08:26 2016	(r306569)
+++ head/sys/cddl/dev/fbt/arm/fbt_isa.c	Sun Oct  2 00:35:00 2016	(r306570)
@@ -106,9 +106,6 @@ fbt_provide_module_function(linker_file_
 		return (0);
 	}
 
-	if (name[0] == '_' && name[1] == '_')
-		return (0);
-
 	instr = (uint32_t *)symval->value;
 	limit = (uint32_t *)(symval->value + symval->size);
 

Modified: head/sys/cddl/dev/fbt/fbt.c
==============================================================================
--- head/sys/cddl/dev/fbt/fbt.c	Sat Oct  1 23:08:26 2016	(r306569)
+++ head/sys/cddl/dev/fbt/fbt.c	Sun Oct  2 00:35:00 2016	(r306570)
@@ -126,10 +126,6 @@ fbt_excluded(const char *name)
 		return (1);
 	}
 
-	/* Exclude some internal functions */
-	if (name[0] == '_' && name[1] == '_')
-		return (1);
-
 	/*
 	 * When DTrace is built into the kernel we need to exclude
 	 * the FBT functions from instrumentation.

Modified: head/sys/cddl/dev/fbt/powerpc/fbt_isa.c
==============================================================================
--- head/sys/cddl/dev/fbt/powerpc/fbt_isa.c	Sat Oct  1 23:08:26 2016	(r306569)
+++ head/sys/cddl/dev/fbt/powerpc/fbt_isa.c	Sun Oct  2 00:35:00 2016	(r306570)
@@ -138,9 +138,6 @@ fbt_provide_module_function(linker_file_
 		return (0);
 	}
 
-	if (name[0] == '_' && name[1] == '_')
-		return (0);
-
 	instr = (uint32_t *) symval->value;
 	limit = (uint32_t *) (symval->value + symval->size);
 

Modified: head/sys/cddl/dev/fbt/x86/fbt_isa.c
==============================================================================
--- head/sys/cddl/dev/fbt/x86/fbt_isa.c	Sat Oct  1 23:08:26 2016	(r306569)
+++ head/sys/cddl/dev/fbt/x86/fbt_isa.c	Sun Oct  2 00:35:00 2016	(r306570)
@@ -174,9 +174,6 @@ fbt_provide_module_function(linker_file_
 		return (0);
 	}
 
-	if (name[0] == '_' && name[1] == '_')
-		return (0);
-
 	size = symval->size;
 
 	instr = (uint8_t *) symval->value;