File mozilla-s390-context.patch of Package MozillaFirefox

--- b/js/src/wasm/WasmSignalHandlers.cpp	2018-06-19 15:01:54.000000000 +0200
+++ a/js/src/wasm/WasmSignalHandlers.cpp	2018-07-21 00:00:17.959341844 +0200
@@ -181,20 +181,24 @@ struct AutoSignalHandler
 #  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__))
 // powerpc stack frame pointer (SFP or SP or FP)
 #  define R01_sig(p) ((p)->uc_mcontext.gp_regs[1])
 // powerpc next instruction pointer (NIP or PC)
 #  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 XMM_sig(p,i) (((struct fxsave64*)(p)->uc_mcontext.__fpregs)->fx_xmm[i])
 # 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 RAX_sig(p) ((p)->uc_mcontext.__gregs[_REG_RAX])
 # define RCX_sig(p) ((p)->uc_mcontext.__gregs[_REG_RCX])
 # define RDX_sig(p) ((p)->uc_mcontext.__gregs[_REG_RDX])
 # define RBX_sig(p) ((p)->uc_mcontext.__gregs[_REG_RBX])
@@ -430,20 +434,24 @@ struct macos_arm_context {
 # define LR_sig(p) RLR_sig(p)
 #elif defined(__mips__)
 # define PC_sig(p) EPC_sig(p)
 # 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
 
 #if defined(PC_sig) && defined(FP_sig) && defined(SP_sig)
 # define KNOWS_MACHINE_STATE
 #endif
 
 static uint8_t**
 ContextToPC(CONTEXT* context)
 {
 #ifdef KNOWS_MACHINE_STATE