Add HPPA detection

- detect the HPPA architecture (PA-RISC) and define Q_PROCESSOR_HPPA
- set the right machine type in QElfParser for HPPA ELF files

Change-Id: I5214ce64ef1fdd0ecca3d6c1694c5db9b2852a22
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

src/corelib/global/archdetect.cpp

@@ -17,6 +17,8 @@
 #  define ARCH_PROCESSOR "bfin"
 #elif defined(Q_PROCESSOR_WASM)
 #  define ARCH_PROCESSOR "wasm"
+#elif defined(Q_PROCESSOR_HPPA)
+#  define ARCH_PROCESSOR "hppa"
 #elif defined(Q_PROCESSOR_X86_32)
 #  define ARCH_PROCESSOR "i386"
 #elif defined(Q_PROCESSOR_X86_64)

src/corelib/global/qprocessordetection.h

@@ -142,6 +142,15 @@
 // #  define Q_PROCESSOR_BLACKFIN
 // #  define Q_BYTE_ORDER Q_LITTLE_ENDIAN
 
+/*
+    PA-RISC family, no revisions or variants
+
+    PA-RISC is big-endian.
+*/
+#elif defined(__hppa__)
+#  define Q_PROCESSOR_HPPA
+#  define Q_BYTE_ORDER Q_BIG_ENDIAN
+
 /*
     X86 family, known variants: 32- and 64-bit
 

src/corelib/global/qprocessordetection.qdoc

@@ -86,6 +86,15 @@
     \sa QSysInfo::buildCpuArchitecture()
 */
 
+/*!
+    \macro Q_PROCESSOR_HPPA
+    \relates <QtProcessorDetection>
+
+    Defined if the application is compiled for PA-RISC processors.
+
+    \sa QSysInfo::buildCpuArchitecture()
+*/
+
 /*!
     \macro Q_PROCESSOR_IA64
     \relates <QtProcessorDetection>

src/corelib/plugin/qelfparser_p.cpp

@@ -113,6 +113,8 @@ struct ElfMachineCheck
             EM_AARCH64
 #elif defined(Q_PROCESSOR_BLACKFIN)
             EM_BLACKFIN
+#elif defined(Q_PROCESSOR_HPPA)
+            EM_PARISC
 #elif defined(Q_PROCESSOR_IA64)
             EM_IA_64
 #elif defined(Q_PROCESSOR_MIPS)
@@ -378,6 +380,7 @@ Q_DECL_UNUSED Q_DECL_COLD_FUNCTION static QDebug &operator<<(QDebug &d, ElfHeade
 #endif
     case EM_IA_64:      d << ", IA-64"; break;
     case EM_MIPS:       d << ", MIPS"; break;
+    case EM_PARISC:     d << ", HPPA"; break;
     case EM_PPC:        d << ", PowerPC"; break;
     case EM_PPC64:      d << ", PowerPC 64-bit"; break;
 #ifdef EM_RISCV