From 3005d9e3487a40c6e5bba99bc37e0944a2c25e3f Mon Sep 17 00:00:00 2001
From: Jarred Sumner <709451+Jarred-Sumner@users.noreply.github.com>
Date: Thu, 5 Jan 2023 00:22:48 -0800
Subject: Really fix #1722

---
 src/bun.js/bindings/glibc-versions-hack.cpp | 42 +++++++++++++++++++++++++++--
 1 file changed, 40 insertions(+), 2 deletions(-)

(limited to 'src/bun.js/bindings/glibc-versions-hack.cpp')

diff --git a/src/bun.js/bindings/glibc-versions-hack.cpp b/src/bun.js/bindings/glibc-versions-hack.cpp
index 1cfce5fb4..1be279202 100644
--- a/src/bun.js/bindings/glibc-versions-hack.cpp
+++ b/src/bun.js/bindings/glibc-versions-hack.cpp
@@ -40,8 +40,41 @@ extern "C" int __wrap_statx(int fd, const char* path, int flags,
 }
 
 extern "C" int __real_fcntl(int fd, int cmd, ...);
-extern "C" double __real_exp(double x);
-extern "C" double __real_log(double x);
+typedef double (*MathFunction)(double);
+
+static inline double __real_exp(double x)
+{
+    static MathFunction function = nullptr;
+    if (UNLIKELY(function == nullptr)) {
+        function = reinterpret_cast<MathFunction>(dlsym(nullptr, "exp"));
+        if (UNLIKELY(function == nullptr))
+            abort();
+    }
+
+    return function(x);
+}
+static inline double __real_log(double x)
+{
+    static MathFunction function = nullptr;
+    if (UNLIKELY(function == nullptr)) {
+        function = reinterpret_cast<MathFunction>(dlsym(nullptr, "log"));
+        if (UNLIKELY(function == nullptr))
+            abort();
+    }
+
+    return function(x);
+}
+static inline double __real_log2(double x)
+{
+    static MathFunction function = nullptr;
+    if (UNLIKELY(function == nullptr)) {
+        function = reinterpret_cast<MathFunction>(dlsym(nullptr, "log2"));
+        if (UNLIKELY(function == nullptr))
+            abort();
+    }
+
+    return function(x);
+}
 
 extern "C" int __wrap_fcntl(int fd, int cmd, ...)
 {
@@ -79,6 +112,11 @@ extern "C" double __wrap_log(double x)
     return __real_log(x);
 }
 
+extern "C" double __wrap_log2(double x)
+{
+    return __real_log2(x);
+}
+
 #ifndef _MKNOD_VER
 #define _MKNOD_VER 1
 #endif
-- 
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