firefox/Bug-1238661---fix-mozillaSignalTrampoline-to-work-.patch

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2018-04-27 07:11:21 +00:00
diff -up firefox-60.0/mfbt/LinuxSignal.h.mozilla-1238661 firefox-60.0/mfbt/LinuxSignal.h
--- firefox-60.0/mfbt/LinuxSignal.h.mozilla-1238661 2018-04-27 08:55:38.848241768 +0200
+++ firefox-60.0/mfbt/LinuxSignal.h 2018-04-27 09:06:47.946769859 +0200
@@ -25,10 +25,13 @@ SignalTrampoline(int aSignal, siginfo_t*
"nop; nop; nop; nop"
: : : "memory");
+ // Because the assembler may generate additional insturctions below, we
+ // need to ensure NOPs are inserted first by separating them out above.
+
asm volatile (
- "b %0"
+ "bx %0"
:
- : "X"(H)
+ : "r"(H), "l"(aSignal), "l"(aInfo), "l"(aContext)
: "memory");
}