MozillaFirefox/mozilla-s390-context.patch

# HG changeset patch
# User msirringhaus@suse.de
# Date 1558452408 -7200
#      Tue May 21 17:26:48 2019 +0200
# Node ID 602e92722e765a3c238d3b96b26c0c8063b5eeb4
# Parent  cb0089687ab899846b8229c3741261d50101340e
[mq]: mozilla-s390-context.patch

diff --git a/js/src/wasm/WasmSignalHandlers.cpp b/js/src/wasm/WasmSignalHandlers.cpp
--- a/js/src/wasm/WasmSignalHandlers.cpp
+++ b/js/src/wasm/WasmSignalHandlers.cpp
@@ -150,16 +150,20 @@ using mozilla::DebugOnly;
 #    define FP_sig(p) ((p)->uc_mcontext.mc_fp)
 #    define SP_sig(p) ((p)->uc_mcontext.mc_i7)
 #  endif
 #  if defined(__linux__) && (defined(__ppc64__) || defined(__PPC64__) || \
                              defined(__ppc64le__) || defined(__PPC64LE__))
 #    define R01_sig(p) ((p)->uc_mcontext.gp_regs[1])
 #    define R32_sig(p) ((p)->uc_mcontext.gp_regs[32])
 #  endif
+#  if defined(__linux__) && defined(__s390x__)
+#    define GR_sig(p,x) ((p)->uc_mcontext.gregs[x])
+#    define PSWa_sig(p) ((p)->uc_mcontext.psw.addr)
+#  endif
 #elif defined(__NetBSD__)
 #  define EIP_sig(p) ((p)->uc_mcontext.__gregs[_REG_EIP])
 #  define EBP_sig(p) ((p)->uc_mcontext.__gregs[_REG_EBP])
 #  define ESP_sig(p) ((p)->uc_mcontext.__gregs[_REG_ESP])
 #  define RIP_sig(p) ((p)->uc_mcontext.__gregs[_REG_RIP])
 #  define RSP_sig(p) ((p)->uc_mcontext.__gregs[_REG_RSP])
 #  define RBP_sig(p) ((p)->uc_mcontext.__gregs[_REG_RBP])
 #  define R11_sig(p) ((p)->uc_mcontext.__gregs[_REG_R11])
@@ -381,18 +385,23 @@ struct macos_arm_context {
 #  define FP_sig(p) RFP_sig(p)
 #  define SP_sig(p) RSP_sig(p)
 #  define LR_sig(p) R31_sig(p)
 #elif defined(__ppc64__) || defined(__PPC64__) || defined(__ppc64le__) || \
     defined(__PPC64LE__)
 #  define PC_sig(p) R32_sig(p)
 #  define SP_sig(p) R01_sig(p)
 #  define FP_sig(p) R01_sig(p)
+#elif defined(__s390x__)
+# define PC_sig(p) PSWa_sig(p)
+# define SP_sig(p) GR_sig(p, 15)
+# define FP_sig(p) GR_sig(p, 11)
 #endif
 
+
 static void SetContextPC(CONTEXT* context, uint8_t* pc) {
 #ifdef PC_sig
   *reinterpret_cast<uint8_t**>(&PC_sig(context)) = pc;
 #else
   MOZ_CRASH();
 #endif
 }