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authorFlorian Weimer <fweimer@redhat.com>2015-03-01 21:47:31 +0100
committerFlorian Weimer <fweimer@redhat.com>2015-03-06 10:29:49 +0100
commit627e7a5f5bd3c623108fe5a4f86294d893fadbf2 (patch)
treed7ad9fb2d511a5f6d832da53e5a14ff2fc5809c4 /stdio-common/vfprintf.c
parentd176a41a62cad5cee4541176077380a84c0f49d7 (diff)
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vfprintf: Introduce JUMP_TABLE_BASE_LABEL
This makes the offset handling more explicit and avoids
cross-references between the jump tables.
Diffstat (limited to 'stdio-common/vfprintf.c')
-rw-r--r--stdio-common/vfprintf.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/stdio-common/vfprintf.c b/stdio-common/vfprintf.c
index d575994d36..030d33d981 100644
--- a/stdio-common/vfprintf.c
+++ b/stdio-common/vfprintf.c
@@ -304,7 +304,7 @@ vfprintf (FILE *s, const CHAR_T *format, va_list ap)
 	  spec = (ChExpr);						      \
 	  offset = NOT_IN_JUMP_RANGE (spec) ? REF (form_unknown)	      \
 	    : table[CHAR_CLASS (spec)];					      \
-	  ptr = &&do_form_unknown + offset;				      \
+	  ptr = &&JUMP_TABLE_BASE_LABEL + offset;			      \
 	  goto *ptr;							      \
 	}								      \
       while (0)
@@ -1329,7 +1329,8 @@ vfprintf (FILE *s, const CHAR_T *format, va_list ap)
   do
     {
 #ifdef SHARED
-# define REF(Name) &&do_##Name - &&do_form_unknown
+# define JUMP_TABLE_BASE_LABEL do_form_unknown
+# define REF(Name) (&&do_##Name - &&JUMP_TABLE_BASE_LABEL)
 #else
 # define REF(Name) &&do_##Name
 #endif
@@ -1897,7 +1898,9 @@ do_positional:
       {
 #undef REF
 #ifdef SHARED
-# define REF(Name) &&do2_##Name - &&do_form_unknown
+# undef JUMP_TABLE_BASE_LABEL
+# define JUMP_TABLE_BASE_LABEL do2_form_unknown
+# define REF(Name) (&&do2_##Name - &&JUMP_TABLE_BASE_LABEL)
 #else
 # define REF(Name) &&do2_##Name
 #endif