Fusion des modifications faites sur les branches "tailcalls" et "smallstep".

En particulier:
- Semantiques small-step depuis RTL jusqu'a PPC
- Cminor independant du processeur
- Ajout passes Selection et Reload
- Ajout des langages intermediaires CminorSel et LTLin correspondants
- Ajout des tailcalls depuis Cminor jusqu'a PPC


git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@384 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e

4 files changed, 245 insertions, 0 deletions

diff --git a/runtime/Makefile b/runtime/Makefile
new file mode 100644
index 0000000..c45c9fb
--- /dev/null
+++ b/runtime/Makefile
@@ -0,0 +1,13 @@
+CFLAGS=-arch ppc -O1 -g -Wall
+#CFLAGS=-O1 -g -Wall
+OBJS=stdio.o calloc.o
+LIB=libcompcert.a
+
+$(LIB): $(OBJS)
+	rm -f $(LIB)
+	ar rcs $(LIB) $(OBJS)
+
+stdio.o: stdio.h
+
+clean:
+	rm -f *.o $(LIB)
diff --git a/runtime/calloc.c b/runtime/calloc.c
new file mode 100644
index 0000000..2526ceb
--- /dev/null
+++ b/runtime/calloc.c
@@ -0,0 +1,13 @@
+#include <stdio.h>
+#include <stddef.h>
+#include <stdlib.h>
+
+void * compcert_alloc(int sz)
+{
+  void * res = malloc(sz);
+  if (res == NULL) {
+    fprintf(stderr, "Out of memory in compcert_alloc().\n");
+    abort();
+  }
+  return res;
+}
diff --git a/runtime/stdio.c b/runtime/stdio.c
new file mode 100644
index 0000000..c153257
--- /dev/null
+++ b/runtime/stdio.c
@@ -0,0 +1,152 @@
+#include <stdarg.h>
+#include <stdlib.h>
+#define _INSIDE_COMPCERT_COMPATIBILITY_LIBRARY
+#include "stdio.h"
+
+static compcert_FILE * compcert_alloc_file(FILE * f)
+{
+  struct compcert_FILE_ * r;
+  r = malloc(sizeof(struct compcert_FILE_));
+  if (r == NULL) return NULL;
+  r->fstr = (void *) f;
+  return r;
+}
+
+compcert_FILE * compcert_stdin;
+compcert_FILE * compcert_stdout;
+compcert_FILE * compcert_stderr;
+
+static __attribute__((constructor)) void compcert_stdio_init(void)
+{
+  compcert_stdin = compcert_alloc_file(stdin);
+  compcert_stdout = compcert_alloc_file(stdout);
+  compcert_stderr = compcert_alloc_file(stderr);
+}
+
+void compcert_clearerr(compcert_FILE * f)
+{
+  clearerr((FILE *)(f->fstr));
+}
+
+int compcert_fclose(compcert_FILE * f)
+{
+  int errcode = fclose((FILE *)(f->fstr));
+  free(f);
+  return errcode;
+}
+
+int compcert_feof(compcert_FILE * f)
+{
+  return feof((FILE *)(f->fstr));
+}
+
+int compcert_ferror(compcert_FILE * f)
+{
+  return ferror((FILE *)(f->fstr));
+}
+
+int compcert_fflush(compcert_FILE * f)
+{
+  return fflush((FILE *)(f->fstr));
+}
+
+int compcert_fgetc(compcert_FILE * f)
+{
+  return fgetc((FILE *)(f->fstr));
+}
+
+char *compcert_fgets(char * s, int n, compcert_FILE * f)
+{
+  return fgets(s, n, (FILE *)(f->fstr));
+}
+
+compcert_FILE *compcert_fopen(const char * p, const char * m)
+{
+  FILE * f = fopen(p, m);
+  if (f == NULL) return NULL;
+  return compcert_alloc_file(f);
+}
+
+int compcert_fprintf(compcert_FILE * f, const char * s, ...)
+{
+  va_list ap;
+  int retcode;
+  va_start(ap, s);
+  retcode = vfprintf((FILE *)(f->fstr), s, ap);
+  va_end(ap);
+  return retcode;
+}
+
+int compcert_fputc(int c, compcert_FILE * f)
+{
+  return fputc(c, (FILE *)(f->fstr));
+}
+
+int compcert_fputs(const char * s, compcert_FILE * f)
+{
+  return fputs(s, (FILE *)(f->fstr));
+}
+
+size_t compcert_fread(void * s, size_t p, size_t q, compcert_FILE * f)
+{
+  return fread(s, p, q, (FILE *)(f->fstr));
+}
+
+compcert_FILE *compcert_freopen(const char * s, const char * m,
+                                compcert_FILE * f)
+{
+  FILE * nf = freopen(s, m, (FILE *)(f->fstr));
+  if (nf == NULL) return NULL;
+  f->fstr = nf;
+  return f;
+}
+
+int compcert_fscanf(compcert_FILE * f, const char * s, ...)
+{
+  va_list ap;
+  int retcode;
+  va_start(ap, s);
+  retcode = vfscanf((FILE *)(f->fstr), s, ap);
+  va_end(ap);
+  return retcode;
+}
+
+int compcert_fseek(compcert_FILE * f, long p, int q)
+{
+  return fseek((FILE *)(f->fstr), p, q);
+}
+
+long compcert_ftell(compcert_FILE *f)
+{
+  return ftell((FILE *)(f->fstr));
+}
+
+size_t compcert_fwrite(const void * b, size_t p, size_t q, compcert_FILE * f)
+{
+  return fwrite(b, p, q, (FILE *)(f->fstr));
+}
+
+int compcert_getc(compcert_FILE * f)
+{
+  return getc((FILE *)(f->fstr));
+}
+
+int compcert_putc(int c , compcert_FILE * f)
+{
+  return putc(c, (FILE *)(f->fstr));
+}
+
+void compcert_rewind(compcert_FILE * f)
+{
+  rewind((FILE *)(f->fstr));
+}
+
+int compcert_ungetc(int c, compcert_FILE * f)
+{
+  return ungetc(c, (FILE *)(f->fstr));
+}
+
+int compcert_vfprintf(compcert_FILE * f, const char * s, va_list va)
+{
+  return vfprintf((FILE *)(f->fstr), s, va);
+}
diff --git a/runtime/stdio.h b/runtime/stdio.h
new file mode 100644
index 0000000..2442dcb
--- /dev/null
+++ b/runtime/stdio.h
@@ -0,0 +1,67 @@
+#ifndef _COMPCERT_STDIO_H
+#define _COMPCERT_STDIO_H
+
+#include "/usr/include/stdio.h"
+
+typedef struct compcert_FILE_ { void * fstr; } compcert_FILE;
+
+extern compcert_FILE * compcert_stdin;
+extern compcert_FILE * compcert_stdout;
+extern compcert_FILE * compcert_stderr;
+extern void	 compcert_clearerr(compcert_FILE *);
+extern int	 compcert_fclose(compcert_FILE *);
+extern int	 compcert_feof(compcert_FILE *);
+extern int	 compcert_ferror(compcert_FILE *);
+extern int	 compcert_fflush(compcert_FILE *);
+extern int	 compcert_fgetc(compcert_FILE *);
+extern char	*compcert_fgets(char * , int, compcert_FILE *);
+extern compcert_FILE	*compcert_fopen(const char * , const char * );
+extern int	 compcert_fprintf(compcert_FILE * , const char * , ...);
+extern int	 compcert_fputc(int, compcert_FILE *);
+extern int	 compcert_fputs(const char * , compcert_FILE * );
+extern size_t	 compcert_fread(void * , size_t, size_t, compcert_FILE * );
+extern compcert_FILE	*compcert_freopen(const char * , const char * ,
+                                          compcert_FILE * );
+extern int	 compcert_fscanf(compcert_FILE * , const char * , ...);
+extern int	 compcert_fseek(compcert_FILE *, long, int);
+extern long	 compcert_ftell(compcert_FILE *);
+extern size_t	 compcert_fwrite(const void * , size_t, size_t, compcert_FILE * );
+extern int	 compcert_getc(compcert_FILE *);
+extern int	 compcert_putc(int, compcert_FILE *);
+extern void	 compcert_rewind(compcert_FILE *);
+extern int	 compcert_ungetc(int, compcert_FILE *);
+extern int	 compcert_vfprintf(compcert_FILE *, const char *, va_list);
+
+#ifndef _INSIDE_COMPCERT_COMPATIBILITY_LIBRARY
+#define FILE compcert_FILE
+#undef stdin
+#define stdin compcert_stdin
+#undef stdout
+#define stdout compcert_stdout
+#undef stderr
+#define stderr compcert_stderr
+#define clearerr compcert_clearerr
+#define fclose compcert_fclose
+#define feof compcert_feof
+#define ferror compcert_ferror
+#define fflush compcert_fflush
+#define fgetc compcert_fgetc
+#define fgets compcert_fgets
+#define fopen compcert_fopen
+#define fprintf compcert_fprintf
+#define fputc compcert_fputc
+#define fputs compcert_fputs
+#define fread compcert_fread
+#define freopen compcert_freopen
+#define fscanf compcert_fscanf
+#define fseek compcert_fseek
+#define ftell compcert_ftell
+#define fwrite compcert_fwrite
+#define getc compcert_getc
+#define putc compcert_putc
+#define rewind compcert_rewind
+#define ungetc compcert_ungetc
+#define vfprintf compcert_vfprintf
+#endif
+
+#endif