---

yaml
---
r: 139229
b: refs/heads/try2
c: a692777
h: refs/heads/master
i:
  139227: f0af8b3
v: v3

Author: luqmana

[refs]

@@ -5,7 +5,7 @@ refs/heads/snap-stage3: 78a7676898d9f80ab540c6df5d4c9ce35bb50463
 refs/heads/try: 519addf6277dbafccbb4159db4b710c37eaa2ec5
 refs/tags/release-0.1: 1f5c5126e96c79d22cb7862f75304136e204f105
 refs/heads/ndm: f3868061cd7988080c30d6d5bf352a5a5fe2460b
-refs/heads/try2: d1778767cca290e844d5aa9d044dcc2f9edc9d8c
+refs/heads/try2: a692777224150e2dadb5ec02c6ecd5c10ce0dd98
 refs/heads/dist-snap: ba4081a5a8573875fed17545846f6f6902c8ba8d
 refs/tags/release-0.2: c870d2dffb391e14efb05aa27898f1f6333a9596
 refs/tags/release-0.3: b5f0d0f648d9a6153664837026ba1be43d3e2503

branches/try2/src/rt/arch/i386/record_sp.S

@@ -1,60 +0,0 @@
-.text
-
-#if defined(__APPLE__) || defined(_WIN32)
-#define RECORD_SP_LIMIT    _record_sp_limit
-#define GET_SP_LIMIT       _get_sp_limit
-#define GET_SP             _get_sp
-#else
-#define RECORD_SP_LIMIT    record_sp_limit
-#define GET_SP_LIMIT       get_sp_limit
-#define GET_SP             get_sp
-#endif
-
-.globl RECORD_SP_LIMIT
-.globl GET_SP_LIMIT
-.globl GET_SP
-
-#if defined(__linux__) || defined(__FreeBSD__)
-RECORD_SP_LIMIT:
-	movl 4(%esp), %eax
-	movl %eax, %gs:48
-	ret
-#endif
-
-#if defined(__APPLE__)
-RECORD_SP_LIMIT:
-	movl $0x48+90*4, %eax
-	movl 4(%esp), %ecx
-	movl %ecx, %gs:(%eax)
-	ret
-#endif
-
-#if defined(_WIN32)
-RECORD_SP_LIMIT:
-	movl 4(%esp), %eax
-	movl %eax, %fs:0x14
-	ret
-#endif
-
-#if defined(__linux__) || defined(__FreeBSD__)
-GET_SP_LIMIT:
-	movl %gs:48, %eax
-	ret
-#endif
-
-#if defined(__APPLE__)
-GET_SP_LIMIT:
-	movl $0x48+90*4, %ecx
-	movl %gs:(%ecx), %eax
-	ret
-#endif
-
-#if defined(_WIN32)
-GET_SP_LIMIT:
-	movl %fs:0x14, %eax
-	ret
-#endif
-
-GET_SP:
-	movl %esp, %eax
-	ret

branches/try2/src/rt/arch/i386/sp.h

@@ -16,14 +16,56 @@
 #include "../../rust_globals.h"
 
 // Gets a pointer to the vicinity of the current stack pointer
-extern "C" uintptr_t get_sp();
+extern "C" ALWAYS_INLINE uintptr_t get_sp() {
+    uintptr_t sp;
+    asm volatile (
+        "movl %%esp, %0"
+        : "=m"(sp));
+    return sp;
+}
 
 // Gets the pointer to the end of the Rust stack from a platform-
 // specific location in the thread control block
-extern "C" CDECL uintptr_t get_sp_limit();
+extern "C" CDECL ALWAYS_INLINE uintptr_t get_sp_limit() {
+    uintptr_t limit;
+
+#if defined(__linux__) || defined(__FreeBSD__)
+    asm volatile (
+        "movl %%gs:48, %0"
+        : "=r"(limit));
+#elif defined(__APPLE__)
+    asm volatile (
+        "movl $0x48+90*4, %%ecx\n\t"
+        "movl %%gs:(%%ecx), %0"
+        :  "=r"(limit)
+        :: "ecx");
+#elif defined(_WIN32)
+    asm volatile (
+        "movl %%fs:0x14, %0"
+        : "=r"(limit));
+#endif
+
+    return limit;
+}
 
 // Records the pointer to the end of the Rust stack in a platform-
 // specific location in the thread control block
-extern "C" CDECL void record_sp_limit(void *limit);
+extern "C" CDECL ALWAYS_INLINE void record_sp_limit(void *limit) {
+#if defined(__linux__) || defined(__FreeBSD__)
+    asm volatile (
+        "movl %0, %%gs:48"
+        :: "r"(limit));
+#elif defined(__APPLE__)
+    asm volatile (
+        "movl $0x48+90*4, %%eax\n\t"
+        "movl %0, %%gs:(%%eax)"
+        :: "r"(limit)
+        :  "eax");
+#elif defined(_WIN32)
+    asm volatile (
+        "movl %0, %%fs:0x14"
+        :: "r"(limit));
+#endif
+}
 
 #endif