Add OS/2 supports

Change-Id: I792d5236451905eb20a8ebe444ef5b2274e4f7a4

build/make/configure.sh

@@ -391,6 +391,7 @@ LDFLAGS = ${LDFLAGS}
 ASFLAGS = ${ASFLAGS}
 extralibs = ${extralibs}
 AS_SFX    = ${AS_SFX:-.asm}
+EXE_SFX   = ${EXE_SFX}
 RTCD_OPTIONS = ${RTCD_OPTIONS}
 EOF
 
@@ -540,6 +541,7 @@ setup_gnu_toolchain() {
     STRIP=${STRIP:-${CROSS}strip}
     NM=${NM:-${CROSS}nm}
         AS_SFX=.s
+        EXE_SFX=
 }
 
 process_common_toolchain() {
@@ -593,6 +595,9 @@ process_common_toolchain() {
             *solaris2.10)
                 tgt_os=solaris
                 ;;
+            *os2*)
+                tgt_os=os2
+                ;;
         esac
 
         if [ -n "$tgt_isa" ] && [ -n "$tgt_os" ]; then
@@ -919,6 +924,9 @@ process_common_toolchain() {
                 LD=${LD:-${CROSS}gcc}
                 CROSS=${CROSS:-g}
                 ;;
+            os2)
+                AS=${AS:-nasm}
+                ;;
         esac
 
         AS="${alt_as:-${AS:-auto}}"
@@ -989,6 +997,11 @@ process_common_toolchain() {
                 # enabled icc && ! enabled pic && add_cflags -fno-pic -mdynamic-no-pic
                 enabled icc && ! enabled pic && add_cflags -fno-pic
             ;;
+            os2)
+                add_asflags -f aout
+                enabled debug && add_asflags -g
+                EXE_SFX=.exe
+            ;;
             *) log "Warning: Unknown os $tgt_os while setting up $AS flags"
             ;;
         esac

configure

@@ -109,6 +109,7 @@ all_platforms="${all_platforms} x86-darwin9-icc"
 all_platforms="${all_platforms} x86-darwin10-gcc"
 all_platforms="${all_platforms} x86-linux-gcc"
 all_platforms="${all_platforms} x86-linux-icc"
+all_platforms="${all_platforms} x86-os2-gcc"
 all_platforms="${all_platforms} x86-solaris-gcc"
 all_platforms="${all_platforms} x86-win32-gcc"
 all_platforms="${all_platforms} x86-win32-vs7"

examples.mk

@@ -168,12 +168,12 @@ $(eval $(if $(filter universal%,$(TOOLCHAIN)),LIPO_OBJS,BUILD_OBJS):=yes)
 # Create build/install dependencies for all examples. The common case
 # is handled here. The MSVS case is handled below.
 NOT_MSVS = $(if $(CONFIG_MSVS),,yes)
-DIST-BINS-$(NOT_MSVS)      += $(addprefix bin/,$(ALL_EXAMPLES:.c=))
+DIST-BINS-$(NOT_MSVS)      += $(addprefix bin/,$(ALL_EXAMPLES:.c=$(EXE_SFX)))
-INSTALL-BINS-$(NOT_MSVS)   += $(addprefix bin/,$(UTILS:.c=))
+INSTALL-BINS-$(NOT_MSVS)   += $(addprefix bin/,$(UTILS:.c=$(EXE_SFX)))
 DIST-SRCS-yes              += $(ALL_SRCS)
 INSTALL-SRCS-yes           += $(UTIL_SRCS)
 OBJS-$(NOT_MSVS)           += $(if $(BUILD_OBJS),$(call objs,$(ALL_SRCS)))
-BINS-$(NOT_MSVS)           += $(addprefix $(BUILD_PFX),$(ALL_EXAMPLES:.c=))
+BINS-$(NOT_MSVS)           += $(addprefix $(BUILD_PFX),$(ALL_EXAMPLES:.c=$(EXE_SFX)))
 
 
 # Instantiate linker template for all examples.
@@ -183,7 +183,7 @@ $(foreach bin,$(BINS-yes),\
     $(if $(BUILD_OBJS),$(eval $(bin):\
         $(LIB_PATH)/lib$(CODEC_LIB)$(CODEC_LIB_SUF)))\
     $(if $(BUILD_OBJS),$(eval $(call linker_template,$(bin),\
-        $(call objs,$($(notdir $(bin)).SRCS)) \
+        $(call objs,$($(notdir $(bin:$(EXE_SFX)=)).SRCS)) \
         -l$(CODEC_LIB) $(addprefix -l,$(CODEC_EXTRA_LIBS))\
         )))\
     $(if $(LIPO_OBJS),$(eval $(call lipo_bin_template,$(bin))))\

tools_common.c

@@ -9,15 +9,21 @@
  */
 #include <stdio.h>
 #include "tools_common.h"
-#ifdef _WIN32
+#if defined(_WIN32) || defined(__OS2__)
 #include <io.h>
 #include <fcntl.h>
+
+#ifdef __OS2__
+#define _setmode    setmode
+#define _fileno     fileno
+#define _O_BINARY   O_BINARY
+#endif
 #endif
 
 FILE* set_binary_mode(FILE *stream)
 {
     (void)stream;
-#ifdef _WIN32
+#if defined(_WIN32) || defined(__OS2__)
     _setmode(_fileno(stream), _O_BINARY);
 #endif
     return stream;

vp8/common/generic/systemdependent.c

@@ -19,11 +19,15 @@
 #include "vp8/common/onyxc_int.h"
 
 #if CONFIG_MULTITHREAD
-#if HAVE_UNISTD_H
+#if HAVE_UNISTD_H && !defined(__OS2__)
 #include <unistd.h>
 #elif defined(_WIN32)
 #include <windows.h>
 typedef void (WINAPI *PGNSI)(LPSYSTEM_INFO);
+#elif defined(__OS2__)
+#define INCL_DOS
+#define INCL_DOSSPINLOCK
+#include <os2.h>
 #endif
 #endif
 
@@ -32,7 +36,7 @@ static int get_cpu_count()
 {
     int core_count = 16;
 
-#if HAVE_UNISTD_H
+#if HAVE_UNISTD_H && !defined(__OS2__)
 #if defined(_SC_NPROCESSORS_ONLN)
     core_count = sysconf(_SC_NPROCESSORS_ONLN);
 #elif defined(_SC_NPROC_ONLN)
@@ -55,6 +59,21 @@ static int get_cpu_count()
 
         core_count = sysinfo.dwNumberOfProcessors;
     }
+#elif defined(__OS2__)
+    {
+        ULONG proc_id;
+        ULONG status;
+
+        core_count = 0;
+        for (proc_id = 1; ; proc_id++)
+        {
+            if (DosGetProcessorStatus(proc_id, &status))
+                break;
+
+            if (status == PROC_ONLINE)
+                core_count++;
+        }
+    }
 #else
     /* other platforms */
 #endif

vp8/common/threading.h

@@ -33,6 +33,29 @@
 #define pthread_getspecific(ts_key) TlsGetValue(ts_key)
 #define pthread_setspecific(ts_key, value) TlsSetValue(ts_key, (void *)value)
 #define pthread_self() GetCurrentThreadId()
+
+#elif defined(__OS2__)
+/* OS/2 */
+#define INCL_DOS
+#include <os2.h>
+
+#include <stdlib.h>
+#define THREAD_FUNCTION void
+#define THREAD_FUNCTION_RETURN void
+#define THREAD_SPECIFIC_INDEX PULONG
+#define pthread_t TID
+#define pthread_attr_t ULONG
+#define pthread_create(thhandle,attr,thfunc,tharg) \
+    ((int)((*(thhandle)=_beginthread(thfunc,NULL,1024*1024,tharg))==-1))
+#define pthread_join(thread, result) ((int)DosWaitThread(&(thread),0))
+#define pthread_detach(thread) 0
+#define thread_sleep(nms) DosSleep(nms)
+#define pthread_cancel(thread) DosKillThread(thread)
+#define ts_key_create(ts_key, destructor) \
+    DosAllocThreadLocalMemory(1, &(ts_key));
+#define pthread_getspecific(ts_key) ((void *)(*(ts_key)))
+#define pthread_setspecific(ts_key, value) (*(ts_key)=(ULONG)(value))
+#define pthread_self() _gettid()
 #else
 #ifdef __APPLE__
 #include <mach/mach_init.h>
@@ -64,6 +87,76 @@
 #define sem_destroy(sem) if(*sem)((int)(CloseHandle(*sem))==TRUE)
 #define thread_sleep(nms) Sleep(nms)
 
+#elif defined(__OS2__)
+typedef struct
+{
+    HEV  event;
+    HMTX wait_mutex;
+    HMTX count_mutex;
+    int  count;
+} sem_t;
+
+static inline int sem_init(sem_t *sem, int pshared, unsigned int value)
+{
+    DosCreateEventSem(NULL, &sem->event, pshared ? DC_SEM_SHARED : 0,
+                      value > 0 ? TRUE : FALSE);
+    DosCreateMutexSem(NULL, &sem->wait_mutex, 0, FALSE);
+    DosCreateMutexSem(NULL, &sem->count_mutex, 0, FALSE);
+
+    sem->count = value;
+
+    return 0;
+}
+
+static inline int sem_wait(sem_t * sem)
+{
+    DosRequestMutexSem(sem->wait_mutex, -1);
+
+    DosWaitEventSem(sem->event, -1);
+
+    DosRequestMutexSem(sem->count_mutex, -1);
+
+    sem->count--;
+    if (sem->count == 0)
+    {
+        ULONG post_count;
+
+        DosResetEventSem(sem->event, &post_count);
+    }
+
+    DosReleaseMutexSem(sem->count_mutex);
+
+    DosReleaseMutexSem(sem->wait_mutex);
+
+    return 0;
+}
+
+static inline int sem_post(sem_t * sem)
+{
+    DosRequestMutexSem(sem->count_mutex, -1);
+
+    if (sem->count < 32768)
+    {
+        sem->count++;
+        DosPostEventSem(sem->event);
+    }
+
+    DosReleaseMutexSem(sem->count_mutex);
+
+    return 0;
+}
+
+static inline int sem_destroy(sem_t * sem)
+{
+    DosCloseEventSem(sem->event);
+    DosCloseMutexSem(sem->wait_mutex);
+    DosCloseMutexSem(sem->count_mutex);
+
+    return 0;
+}
+
+#define thread_sleep(nms) DosSleep(nms)
+
 #else
 
 #ifdef __APPLE__

vpx_ports/x86_abi_support.asm

@@ -22,6 +22,8 @@
 %define ABI_IS_32BIT 1
 %elifidn __OUTPUT_FORMAT__,win32
 %define ABI_IS_32BIT 1
+%elifidn __OUTPUT_FORMAT__,aout
+%define ABI_IS_32BIT 1
 %else
 %define ABI_IS_32BIT 0
 %endif
@@ -314,6 +316,8 @@
 %macro SECTION_RODATA 0
 section .text
 %endmacro
+%elifidn __OUTPUT_FORMAT__,aout
+%define SECTION_RODATA section .data
 %else
 %define SECTION_RODATA section .rodata
 %endif