libiberty/

2014-09-26  Max Ostapenko  <m.ostapenko@partner.samsung.com>

	* pex-common.h (struct pex_funcs): Add new parameter for open_write field.
	* pex-unix.c (pex_unix_open_write): Add support for new parameter.
	* pex-djgpp.c (pex_djgpp_open_write): Likewise.
	* pex-win32.c (pex_win32_open_write): Likewise.
	* pex-common.c (pex_run_in_environment): Likewise.


include/

2014-09-26  Max Ostapenko  <m.ostapenko@partner.samsung.com>

	* libiberty.h (PEX_STDOUT_APPEND): New flag.
	(PEX_STDERR_APPEND): Likewise.


git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@215632 138bc75d-0d04-0410-961f-82ee72b054a4

6 files changed, 26 insertions, 11 deletions

diff --git a/libiberty/ChangeLog b/libiberty/ChangeLog
index d47b8730ea5..53d967e6d70 100644
--- a/libiberty/ChangeLog
+++ b/libiberty/ChangeLog
@@ -1,3 +1,11 @@
+2014-09-26  Max Ostapenko  <m.ostapenko@partner.samsung.com>
+
+	* pex-common.h (struct pex_funcs): Add new parameter for open_write field.
+	* pex-unix.c (pex_unix_open_write): Add support for new parameter.
+	* pex-djgpp.c (pex_djgpp_open_write): Likewise.
+	* pex-win32.c (pex_win32_open_write): Likewise.
+	* pex-common.c (pex_run_in_environment): Likewise.
+
 2014-09-23  Iain Buclaw  <ibuclaw@gdcproject.org>
 
 	* Makefile.in (CFILES): Add d-demangle.c.
diff --git a/libiberty/pex-common.c b/libiberty/pex-common.c
index 6fd3fdecd80..146010a6fca 100644
--- a/libiberty/pex-common.c
+++ b/libiberty/pex-common.c
@@ -267,7 +267,8 @@ pex_run_in_environment (struct pex_obj *obj, int flags, const char *executable,
   if (out < 0)
     {
       out = obj->funcs->open_write (obj, outname,
-				    (flags & PEX_BINARY_OUTPUT) != 0);
+				    (flags & PEX_BINARY_OUTPUT) != 0,
+				    (flags & PEX_STDOUT_APPEND) != 0);
       if (out < 0)
 	{
 	  *err = errno;
@@ -319,8 +320,9 @@ pex_run_in_environment (struct pex_obj *obj, int flags, const char *executable,
     }
   else
     {
-      errdes = obj->funcs->open_write (obj, errname, 
-				       (flags & PEX_BINARY_ERROR) != 0);
+      errdes = obj->funcs->open_write (obj, errname,
+				       (flags & PEX_BINARY_ERROR) != 0,
+				       (flags & PEX_STDERR_APPEND) != 0);
       if (errdes < 0)
 	{
 	  *err = errno;
diff --git a/libiberty/pex-common.h b/libiberty/pex-common.h
index af338e6a34b..b6db248f692 100644
--- a/libiberty/pex-common.h
+++ b/libiberty/pex-common.h
@@ -104,7 +104,7 @@ struct pex_funcs
   /* Open file NAME for writing.  If BINARY is non-zero, open in
      binary mode.  Return >= 0 on success, -1 on error.  */
   int (*open_write) (struct pex_obj *, const char */* name */,
-                     int /* binary */);
+                     int /* binary */, int /* append */);
   /* Execute a child process.  FLAGS, EXECUTABLE, ARGV, ERR are from
      pex_run.  IN, OUT, ERRDES, TOCLOSE are all descriptors, from
      open_read, open_write, or pipe, or they are one of STDIN_FILE_NO,
diff --git a/libiberty/pex-djgpp.c b/libiberty/pex-djgpp.c
index 0721139954f..b014ffa3317 100644
--- a/libiberty/pex-djgpp.c
+++ b/libiberty/pex-djgpp.c
@@ -43,7 +43,7 @@ extern int errno;
 #endif
 
 static int pex_djgpp_open_read (struct pex_obj *, const char *, int);
-static int pex_djgpp_open_write (struct pex_obj *, const char *, int);
+static int pex_djgpp_open_write (struct pex_obj *, const char *, int, int);
 static pid_t pex_djgpp_exec_child (struct pex_obj *, int, const char *,
 				  char * const *, char * const *,
 				  int, int, int, int,
@@ -90,10 +90,12 @@ pex_djgpp_open_read (struct pex_obj *obj ATTRIBUTE_UNUSED,
 
 static int
 pex_djgpp_open_write (struct pex_obj *obj ATTRIBUTE_UNUSED,
-		      const char *name, int binary)
+		      const char *name, int binary, int append)
 {
   /* Note that we can't use O_EXCL here because gcc may have already
      created the temporary file via make_temp_file.  */
+  if (append)
+    return -1;
   return open (name,
 	       (O_WRONLY | O_CREAT | O_TRUNC
 		| (binary ? O_BINARY : O_TEXT)),
diff --git a/libiberty/pex-unix.c b/libiberty/pex-unix.c
index addf8ee23df..07151157478 100644
--- a/libiberty/pex-unix.c
+++ b/libiberty/pex-unix.c
@@ -301,7 +301,7 @@ pex_wait (struct pex_obj *obj, pid_t pid, int *status, struct pex_time *time)
 static void pex_child_error (struct pex_obj *, const char *, const char *, int)
      ATTRIBUTE_NORETURN;
 static int pex_unix_open_read (struct pex_obj *, const char *, int);
-static int pex_unix_open_write (struct pex_obj *, const char *, int);
+static int pex_unix_open_write (struct pex_obj *, const char *, int, int);
 static pid_t pex_unix_exec_child (struct pex_obj *, int, const char *,
 				 char * const *, char * const *,
 				 int, int, int, int,
@@ -350,11 +350,12 @@ pex_unix_open_read (struct pex_obj *obj ATTRIBUTE_UNUSED, const char *name,
 
 static int
 pex_unix_open_write (struct pex_obj *obj ATTRIBUTE_UNUSED, const char *name,
-		     int binary ATTRIBUTE_UNUSED)
+		     int binary ATTRIBUTE_UNUSED, int append)
 {
   /* Note that we can't use O_EXCL here because gcc may have already
      created the temporary file via make_temp_file.  */
-  return open (name, O_WRONLY | O_CREAT | O_TRUNC, PUBLIC_MODE);
+  return open (name, O_WRONLY | O_CREAT
+		     | (append ? O_APPEND : O_TRUNC), PUBLIC_MODE);
 }
 
 /* Close a file.  */
diff --git a/libiberty/pex-win32.c b/libiberty/pex-win32.c
index 8b9d4f04900..66d2f1157c7 100644
--- a/libiberty/pex-win32.c
+++ b/libiberty/pex-win32.c
@@ -78,7 +78,7 @@ backslashify (char *s)
 }
 
 static int pex_win32_open_read (struct pex_obj *, const char *, int);
-static int pex_win32_open_write (struct pex_obj *, const char *, int);
+static int pex_win32_open_write (struct pex_obj *, const char *, int, int);
 static pid_t pex_win32_exec_child (struct pex_obj *, int, const char *,
 				  char * const *, char * const *,
                                   int, int, int, int,
@@ -126,10 +126,12 @@ pex_win32_open_read (struct pex_obj *obj ATTRIBUTE_UNUSED, const char *name,
 
 static int
 pex_win32_open_write (struct pex_obj *obj ATTRIBUTE_UNUSED, const char *name,
-		      int binary)
+		      int binary, int append)
 {
   /* Note that we can't use O_EXCL here because gcc may have already
      created the temporary file via make_temp_file.  */
+  if (append)
+    return -1;
   return _open (name,
 		(_O_WRONLY | _O_CREAT | _O_TRUNC
 		 | (binary ? _O_BINARY : _O_TEXT)),