Fix cls_double_va.c and update docs

diff --git a/doc/libffi.info b/doc/libffi.info
index c0fb005..402f760 100644 (file)
--- a/doc/libffi.info
+++ b/doc/libffi.info
@@ -1,10 +1,10 @@
-This is /home/green/libffi/doc/libffi.info, produced by makeinfo
-version 4.13 from /home/green/libffi/doc/libffi.texi.
+This is ../libffi/doc/libffi.info, produced by makeinfo version 4.13
+from ../libffi/doc/libffi.texi.
 
 This manual is for Libffi, a portable foreign-function interface
 library.
 
-   Copyright (C) 2008, 2010 Red Hat, Inc.
+   Copyright (C) 2008, 2010, 2011 Red Hat, Inc.
 
      Permission is granted to copy, distribute and/or modify this
      document under the terms of the GNU General Public License as
@@ -27,7 +27,7 @@ libffi
 This manual is for Libffi, a portable foreign-function interface
 library.
 
-   Copyright (C) 2008, 2010 Red Hat, Inc.
+   Copyright (C) 2008, 2010, 2011 Red Hat, Inc.
 
      Permission is granted to copy, distribute and/or modify this
      document under the terms of the GNU General Public License as
@@ -115,8 +115,6 @@ To prepare a call interface object, use the function `ffi_prep_cif'.
      want.  *note Multiple ABIs:: for more information.
 
      NARGS is the number of arguments that this function accepts.
-     `libffi' does not yet handle varargs functions; see *note Missing
-     Features:: for more information.
 
      RTYPE is a pointer to an `ffi_type' structure that describes the
      return type of the function.  *Note Types::.
@@ -129,6 +127,30 @@ To prepare a call interface object, use the function `ffi_prep_cif'.
      properly; `FFI_BAD_TYPEDEF' if one of the `ffi_type' objects is
      incorrect; or `FFI_BAD_ABI' if the ABI parameter is invalid.
 
+   If the function being called is variadic (varargs) then
+`ffi_prep_cif_var' must be used instead of `ffi_prep_cif'.
+
+ -- Function: ffi_status ffi_prep_cif_var (ffi_cif *CIF, ffi_abi
+          varabi, unsigned int NFIXEDARGS, unsigned int varntotalargs,
+          ffi_type *RTYPE, ffi_type **ARGTYPES)
+     This initializes CIF according to the given parameters for a call
+     to a variadic function.  In general it's operation is the same as
+     for `ffi_prep_cif' except that:
+
+     NFIXEDARGS is the number of fixed arguments, prior to any variadic
+     arguments.  It must be greater than zero.
+
+     NTOTALARGS the total number of arguments, including variadic and
+     fixed arguments.
+
+     Note that, different cif's must be prepped for calls to the same
+     function when different numbers of arguments are passed.
+
+     Also note that a call to `ffi_prep_cif_var' with
+     NFIXEDARGS=NOTOTALARGS is NOT equivalent to a call to
+     `ffi_prep_cif'.
+
+
    To call a function using an initialized `ffi_cif', use the
 `ffi_call' function:
 
@@ -511,9 +533,7 @@ File: libffi.info,  Node: Missing Features,  Next: Index,  Prev: Using libffi,
 `libffi' is missing a few features.  We welcome patches to add support
 for these.
 
-   * There is no support for calling varargs functions.  This may work
-     on some platforms, depending on how the ABI is defined, but it is
-     not reliable.
+   * Variadic closures.
 
    * There is no support for bit fields in structures.
 
@@ -521,6 +541,9 @@ for these.
 
    * The "raw" API is undocumented.
 
+   Note that variadic support is very new and tested on a relatively
+small number of platforms.
+
 \1f
 File: libffi.info,  Node: Index,  Prev: Missing Features,  Up: Top
 
@@ -538,11 +561,12 @@ Index
 * closure API:                           The Closure API.      (line 13)
 * closures:                              The Closure API.      (line 13)
 * FFI:                                   Introduction.         (line 31)
-* ffi_call:                              The Basics.           (line 41)
+* ffi_call:                              The Basics.           (line 63)
 * ffi_closure_alloc:                     The Closure API.      (line 19)
 * ffi_closure_free:                      The Closure API.      (line 26)
 * FFI_CLOSURES:                          The Closure API.      (line 13)
 * ffi_prep_cif:                          The Basics.           (line 16)
+* ffi_prep_cif_var:                      The Basics.           (line 39)
 * ffi_prep_closure_loc:                  The Closure API.      (line 34)
 * ffi_status <1>:                        The Closure API.      (line 37)
 * ffi_status:                            The Basics.           (line 18)
@@ -570,24 +594,24 @@ Index
 * ffi_type_void:                         Primitive Types.      (line 10)
 * Foreign Function Interface:            Introduction.         (line 31)
 * void <1>:                              The Closure API.      (line 20)
-* void:                                  The Basics.           (line 43)
+* void:                                  The Basics.           (line 65)
 
 
 \1f
 Tag Table:
-Node: Top\7f724
-Node: Introduction\7f1466
-Node: Using libffi\7f3102
-Node: The Basics\7f3588
-Node: Simple Example\7f6374
-Node: Types\7f7401
-Node: Primitive Types\7f7684
-Node: Structures\7f9504
-Node: Type Example\7f10364
-Node: Multiple ABIs\7f11587
-Node: The Closure API\7f11958
-Node: Closure Example\7f14902
-Node: Missing Features\7f16461
-Node: Index\7f16954
+Node: Top\7f712
+Node: Introduction\7f1460
+Node: Using libffi\7f3096
+Node: The Basics\7f3582
+Node: Simple Example\7f7224
+Node: Types\7f8251
+Node: Primitive Types\7f8534
+Node: Structures\7f10354
+Node: Type Example\7f11214
+Node: Multiple ABIs\7f12437
+Node: The Closure API\7f12808
+Node: Closure Example\7f15752
+Node: Missing Features\7f17311
+Node: Index\7f17764
 \1f
 End Tag Table

diff --git a/doc/stamp-vti b/doc/stamp-vti
index 1efe9b8..559f833 100644 (file)
--- a/doc/stamp-vti
+++ b/doc/stamp-vti
@@ -1,4 +1,4 @@
 @set UPDATED 12 November 2011
 @set UPDATED-MONTH November 2011
-@set EDITION 3.0.11-rc1
-@set VERSION 3.0.11-rc1
+@set EDITION 3.0.11-rc2
+@set VERSION 3.0.11-rc2

diff --git a/doc/version.texi b/doc/version.texi
index 1efe9b8..559f833 100644 (file)
--- a/doc/version.texi
+++ b/doc/version.texi
@@ -1,4 +1,4 @@
 @set UPDATED 12 November 2011
 @set UPDATED-MONTH November 2011
-@set EDITION 3.0.11-rc1
-@set VERSION 3.0.11-rc1
+@set EDITION 3.0.11-rc2
+@set VERSION 3.0.11-rc2

diff --git a/testsuite/libffi.call/cls_double_va.c b/testsuite/libffi.call/cls_double_va.c
index d17cf65..67e44a4 100644 (file)
--- a/testsuite/libffi.call/cls_double_va.c
+++ b/testsuite/libffi.call/cls_double_va.c
@@ -50,6 +50,9 @@ int main (void)
        printf("res: %d\n", (int) res);
        // { dg-output "\nres: 4" }
 
+       /* The call to cls_double_va_fn is static, so have to use a normal prep_cif */
+       CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, &ffi_type_sint, arg_types) == FFI_OK);
+
        CHECK(ffi_prep_closure_loc(pcl, &cif, cls_double_va_fn, NULL, code) == FFI_OK);
 
        res     = ((int(*)(char*, double))(code))(format, doubleArg);