Please upgrade libffi to ≥ 3.4.3

[xiangzhai]

Hi,

Libffi v3.4.3 adds support for static trampoline for LoongArch. Earlier versions, for example, v3.4.2 is lack of loongarch*-*-linux-* for enable_exec_static_tramp:

diff --git a/native/libffi/configure.ac b/native/libffi/configure.ac
index 70f6d2c2e..c70b23bf6 100644
--- a/native/libffi/configure.ac
+++ b/native/libffi/configure.ac
@@ -373,7 +373,7 @@ if test "$enable_exec_static_tramp" != no; then
 case "$target" in
      *-cygwin*)
      ;;  
-     *arm*-*-linux-* | aarch64*-*-linux-* | i*86-*-linux-* | x86_64-*-linux-*)
+     *arm*-*-linux-* | aarch64*-*-linux-* | i*86-*-linux-* | x86_64-*-linux-* | loongarch*-*-linux-*)
        AC_DEFINE(FFI_EXEC_STATIC_TRAMP, 1,
                  [Define this if you want statically defined trampolines])
      ;;         

ffi_tramp_arch for LoongArch64 is NULL when FFI_EXEC_STATIC_TRAMP is not defined, so ffi_tramp_init in the native/libffi/src/tramp.c will early return goto dynamic trampoline instead:

/*
 * Initialize the static trampoline feature.
 */
static int 
ffi_tramp_init (void)
{
  if (tramp_globals.status == TRAMP_GLOBALS_PASSED)
    return 1;

  if (tramp_globals.status == TRAMP_GLOBALS_FAILED)
    return 0;

=>  if (ffi_tramp_arch == NULL)
    {   
      tramp_globals.status = TRAMP_GLOBALS_FAILED;
=>      return 0;
    }   
...

Just merged static trampoline for LoongArch into jna in my local enviroment, passed all Testsuites, no regression.

Thanks,
Leslie Zhai

[Panxuefeng-loongson]

@matthiasblaesing

[matthiasblaesing]

Please check #1491