From: YunQiang Su <wzssyqa@gmail.com>
Date: Sat, 8 Aug 2020 12:09:43 +0000 (+0100)
Subject: use configuration directive to set mips fpu mode
X-Git-Tag: archive/raspbian/18.12.1+dfsg-2+rpi1~1^2^2^2^2^2^2^2~11
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=ee9d9107a6f880c64a376d91cb60f1bf01b06d0f;p=nodejs.git

use configuration directive to set mips fpu mode

Forwarded: https://github.com/paul99/v8m-rb/issues/192
Last-Update: 2015-09-29


Gbp-Pq: Name 2017_mips_configure_fpu.patch
---

diff --git a/deps/v8/src/base/cpu.cc b/deps/v8/src/base/cpu.cc
index 6ab0ffee2..37026cde4 100644
--- a/deps/v8/src/base/cpu.cc
+++ b/deps/v8/src/base/cpu.cc
@@ -137,22 +137,11 @@ static uint32_t ReadELFHWCaps() {
 
 #if V8_HOST_ARCH_MIPS
 int __detect_fp64_mode(void) {
-  double result = 0;
-  // Bit representation of (double)1 is 0x3FF0000000000000.
-  __asm__ volatile(
-      ".set push\n\t"
-      ".set noreorder\n\t"
-      ".set oddspreg\n\t"
-      "lui $t0, 0x3FF0\n\t"
-      "ldc1 $f0, %0\n\t"
-      "mtc1 $t0, $f1\n\t"
-      "sdc1 $f0, %0\n\t"
-      ".set pop\n\t"
-      : "+m"(result)
-      :
-      : "t0", "$f0", "$f1", "memory");
-
-  return !(result == 1);
+#ifdef FPU_MODE_FP64
+  return 1;
+#else
+  return 0;
+#endif
 }