libffi: backport a fix to build libffi-native with gcc-14

(From OE-Core rev: 1054417a217417ab192dc4aee8307133451fb0e4)

Signed-off-by: Martin Jansa <martin.jansa@gmail.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>

2 files changed, 48 insertions, 0 deletions

diff --git a/meta/recipes-support/libffi/libffi/0001-Forward-declare-open_temp_exec_file-764.patch b/meta/recipes-support/libffi/libffi/0001-Forward-declare-open_temp_exec_file-764.patch
new file mode 100644
index 0000000000..4b135961fd
--- /dev/null
+++ b/meta/recipes-support/libffi/libffi/0001-Forward-declare-open_temp_exec_file-764.patch
@@ -0,0 +1,47 @@
+From 216bf8daeb30880957e0c888efbed1f0a7478c32 Mon Sep 17 00:00:00 2001
+From: serge-sans-paille <serge.guelton@telecom-bretagne.eu>
+Date: Thu, 2 Feb 2023 14:46:29 +0000
+Subject: [PATCH] Forward declare open_temp_exec_file (#764)
+
+It's defined in closures.c and used in tramp.c.
+Also declare it as an hidden symbol, as it should be.
+
+Co-authored-by: serge-sans-paille <sguelton@mozilla.com>
+Signed-off-by: Martin Jansa <martin.jansa@gmail.com>
+
+Upstream-Status: Backport [v3.4.5 https://github.com/libffi/libffi/commit/ce077e5565366171aa1b4438749b0922fce887a4]
+---
+ include/ffi_common.h | 4 ++++
+ src/tramp.c          | 4 ++++
+ 2 files changed, 8 insertions(+)
+
+diff --git a/include/ffi_common.h b/include/ffi_common.h
+index 2bd31b0..c53a794 100644
+--- a/include/ffi_common.h
++++ b/include/ffi_common.h
+@@ -128,6 +128,10 @@ void *ffi_data_to_code_pointer (void *data) FFI_HIDDEN;
+    static trampoline. */
+ int ffi_tramp_is_present (void *closure) FFI_HIDDEN;
+ 
++/* Return a file descriptor of a temporary zero-sized file in a
++   writable and executable filesystem. */
++int open_temp_exec_file(void) FFI_HIDDEN;
++
+ /* Extended cif, used in callback from assembly routine */
+ typedef struct
+ {
+diff --git a/src/tramp.c b/src/tramp.c
+index b9d273a..c3f4c99 100644
+--- a/src/tramp.c
++++ b/src/tramp.c
+@@ -39,6 +39,10 @@
+ #ifdef __linux__
+ #define _GNU_SOURCE 1
+ #endif
++
++#include <ffi.h>
++#include <ffi_common.h>
++
+ #include <stdio.h>
+ #include <unistd.h>
+ #include <stdlib.h>
diff --git a/meta/recipes-support/libffi/libffi_3.4.4.bb b/meta/recipes-support/libffi/libffi_3.4.4.bb
index 4ceee6f3cc..f727e91345 100644
--- a/meta/recipes-support/libffi/libffi_3.4.4.bb
+++ b/meta/recipes-support/libffi/libffi_3.4.4.bb
@@ -13,6 +13,7 @@ LIC_FILES_CHKSUM = "file://LICENSE;md5=32c0d09a0641daf4903e5d61cc8f23a8"
 SRC_URI = "https://github.com/libffi/libffi/releases/download/v${PV}/${BPN}-${PV}.tar.gz \
            file://not-win32.patch \
            file://0001-arm-sysv-reverted-clang-VFP-mitigation.patch \
+           file://0001-Forward-declare-open_temp_exec_file-764.patch \
            "
 SRC_URI[sha256sum] = "d66c56ad259a82cf2a9dfc408b32bf5da52371500b84745f7fb8b645712df676"
 UPSTREAM_CHECK_URI = "https://github.com/libffi/libffi/releases/"