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Don't try to guess if blob.bin files are needed

Browse Source 
Search for them, if they exist, provide them to V8.  Otherwise
try to go without them.

Conflicts:
	config.m4

Backport from php7 branch.
This commit is contained in:
Stefan Siegl 2016-12-05 16:28:59 +00:00
parent ea8ac66762
commit 5c07ed2974
2 changed files with 21 additions and 77 deletions
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96
config.m4
View File

@ -115,8 +115,6 @@ if test "$PHP_V8JS" != "no"; then
dnl Check for V8 version
dnl (basic support for library linking assumed to be achieved above)
dnl
LIBS="$LIBS $V8JS_SHARED_LIBADD"
AC_CACHE_CHECK(for V8 version, ac_cv_v8_version, [
AC_TRY_RUN([#include <v8.h>
@ -152,90 +150,36 @@ int main ()
AC_MSG_ERROR([could not determine libv8 version])
fi
PHP_ADD_INCLUDE($V8_DIR)
# modify flags for (possibly) succeeding V8 startup check
CPPFLAGS="$CPPFLAGS -I$V8_DIR"
dnl
dnl Scan for blob.bin files (that might be needed)
dnl
AC_DEFUN([V8_SEARCH_BLOB], [
AC_MSG_CHECKING([for $1])
blob_found=0
dnl building for v8 4.4.10 or later, which requires us to
dnl provide startup data, if V8 wasn't compiled with snapshot=off.
AC_MSG_CHECKING([whether V8 requires startup data])
AC_TRY_RUN([
#include <v8.h>
#include <libplatform/libplatform.h>
#include <stdlib.h>
#include <string.h>
class ArrayBufferAllocator : public v8::ArrayBuffer::Allocator {
public:
virtual void* Allocate(size_t length) {
void* data = AllocateUninitialized(length);
return data == NULL ? data : memset(data, 0, length);
}
virtual void* AllocateUninitialized(size_t length) { return malloc(length); }
virtual void Free(void* data, size_t) { free(data); }
};
int main ()
{
v8::Platform *v8_platform = v8::platform::CreateDefaultPlatform();
v8::V8::InitializePlatform(v8_platform);
v8::V8::Initialize();
static ArrayBufferAllocator array_buffer_allocator;
v8::Isolate::CreateParams create_params;
create_params.array_buffer_allocator = &array_buffer_allocator;
v8::Isolate::New(create_params);
return 0;
}
], [
AC_MSG_RESULT([no])
], [
AC_MSG_RESULT([yes])
AC_DEFINE([PHP_V8_USE_EXTERNAL_STARTUP_DATA], [1], [Whether V8 requires (and can be provided with custom versions of) external startup data])
SEARCH_PATH="$V8_DIR/lib $V8_DIR/share/v8"
AC_MSG_CHECKING([for natives_blob.bin])
SEARCH_FOR="natives_blob.bin"
for i in $SEARCH_PATH ; do
if test -r $i/$SEARCH_FOR; then
AC_MSG_RESULT([found ($i/$SEARCH_FOR)])
AC_DEFINE_UNQUOTED([PHP_V8_NATIVES_BLOB_PATH], "$i/$SEARCH_FOR", [Full path to natives_blob.bin file])
native_blob_found=1
fi
done
if test -z "$native_blob_found"; then
AC_MSG_RESULT([not found])
AC_MSG_ERROR([Please provide V8 native blob as needed])
for i in "$V8_DIR/$PHP_LIBDIR" "$V8_DIR/share/v8"; do
if test -r "$i/$1"; then
AC_MSG_RESULT([found ($i/$1)])
AC_DEFINE_UNQUOTED([$2], "$i/$1", [Full path to $1 file])
blob_found=1
fi
done
AC_MSG_CHECKING([for snapshot_blob.bin])
SEARCH_FOR="snapshot_blob.bin"
for i in $SEARCH_PATH ; do
if test -r $i/$SEARCH_FOR; then
AC_MSG_RESULT([found ($i/$SEARCH_FOR)])
AC_DEFINE_UNQUOTED([PHP_V8_SNAPSHOT_BLOB_PATH], "$i/$SEARCH_FOR", [Full path to snapshot_blob.bin file])
snapshot_blob_found=1
fi
done
if test -z "$snapshot_blob_found"; then
AC_MSG_RESULT([not found])
AC_MSG_ERROR([Please provide V8 snapshot blob as needed])
fi
if test "$blob_found" -ne 1; then
AC_MSG_RESULT([not found])
fi
])
V8_SEARCH_BLOB([natives_blob.bin], [PHP_V8_NATIVES_BLOB_PATH])
V8_SEARCH_BLOB([snapshot_blob.bin], [PHP_V8_SNAPSHOT_BLOB_PATH])
AC_LANG_RESTORE
LIBS=$old_LIBS
LDFLAGS="$old_LDFLAGS $LDFLAGS_libplatform"
LDFLAGS="$old_LDFLAGS"
CPPFLAGS=$old_CPPFLAGS
PHP_ADD_INCLUDE($V8_DIR)
PHP_NEW_EXTENSION(v8js, [ \
v8js_array_access.cc \
v8js.cc \

2
v8js_v8.cc
View File

@ -54,7 +54,7 @@ void v8js_v8_init(TSRMLS_D) /* {{{ */
}
#endif
#ifdef PHP_V8_USE_EXTERNAL_STARTUP_DATA
#if defined(PHP_V8_NATIVES_BLOB_PATH) && defined(PHP_V8_SNAPSHOT_BLOB_PATH)
/* V8 doesn't work without startup data, load it. */
v8::V8::InitializeExternalStartupData(
PHP_V8_NATIVES_BLOB_PATH,