thermosphere: add watchpoint + watchpoint merging code

2019-08-07 21:38:40 +02:00
parent 9bc0ed2f70
commit 83c6e2f0e7
5 changed files with 278 additions and 8 deletions
--- a/thermosphere/src/breakpoints.c
+++ b/thermosphere/src/breakpoints.c
@@ -58,7 +58,7 @@ static void freeBreakpoint(u32 pos)

 static DebugRegisterPair *findBreakpoint(u64 addr)
 {
-    u16 bitmap = g_breakpointManager.allocationBitmap;
+    u16 bitmap = ~g_breakpointManager.allocationBitmap & 0xFFFF;
    while (bitmap != 0) {
        u32 pos = __builtin_ffs(bitmap);
        if (pos == 0) {
@@ -119,6 +119,7 @@ bool removeBreakpoint(u64 addr)
    DebugRegisterPair *regs = findBreakpoint(addr);

    if (findBreakpoint(addr) == NULL) {
+        recursiveSpinlockUnlock(&g_breakpointManager.lock);
        return false;
    }

@@ -128,4 +129,4 @@ bool removeBreakpoint(u64 addr)
    // TODO commit & broadcast

    return true;
-}
+}