From: Nicholas Nethercote <n.nethercote@gmail.com>
Date: Sat, 11 Sep 2004 15:30:33 +0000 (+0000)
Subject: Arch-abstraction:
X-Git-Tag: svn/VALGRIND_3_0_0~1589
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=7615eab7a2ef4daa1bb397ed8221cb3970d14ab2;p=thirdparty%2Fvalgrind.git

Arch-abstraction:
- abstract out some inline asm


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@2696
---

diff --git a/coregrind/vg_mylibc.c b/coregrind/vg_mylibc.c
index ef39f73794..66b57d5e28 100644
--- a/coregrind/vg_mylibc.c
+++ b/coregrind/vg_mylibc.c
@@ -1091,7 +1091,8 @@ static inline ExeContext *get_real_execontext(Addr ret)
    Addr esp, ebp;
    Addr stacktop, sigstack_low, sigstack_high;
 
-   asm("movl %%ebp, %0; movl %%esp, %1" : "=r" (ebp), "=r" (esp));
+   ARCH_GET_REAL_STACK_PTR(esp);
+   ARCH_GET_REAL_FRAME_PTR(ebp);
    stacktop = VG_(valgrind_last);
    VG_(get_sigstack_bounds)( &sigstack_low, &sigstack_high );
    if (esp >= sigstack_low && esp < sigstack_high)
diff --git a/coregrind/x86/core_arch.h b/coregrind/x86/core_arch.h
index 425ff5b5b4..00e154bad4 100644
--- a/coregrind/x86/core_arch.h
+++ b/coregrind/x86/core_arch.h
@@ -59,6 +59,16 @@
 #define VGOFF_STACK_PTR                VGOFF_(m_esp)
 #define VGOFF_FRAME_PTR                VGOFF_(m_ebp)
 
+// Get stack pointer and frame pointer
+#define ARCH_GET_REAL_STACK_PTR(esp) do {   \
+   asm("movl %%esp, %0" : "=r" (esp));       \
+} while (0)
+
+#define ARCH_GET_REAL_FRAME_PTR(ebp) do {   \
+   asm("movl %%ebp, %0" : "=r" (ebp));       \
+} while (0)
+
+
 /* -----------------------------------------------------
    Read-write parts of baseBlock.
    -------------------------------------------------- */