From: Clément Chigot <clement.chigot@atos.net>
Date: Fri, 25 Sep 2020 07:48:22 +0000 (+0200)
Subject: aix: apply aix_malloc more narrowly.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=5af2a2d30d7f3a472d77af4540ab38169d307e83;p=gcc.git

aix: apply aix_malloc more narrowly.

In recent Technology Levels of AIX 7.2, new "#ifdef __cplusplus" have been
added. Thus, the aix_malloc fix was applied in wrong locations. This patch
increases the context to avoid this.

fixincludes/ChangeLog:

2020-10-03  Clément Chigot  <clement.chigot@atos.net>

	* inclhack.def (aix_malloc): Add more context to select.
	* fixincl.x: Regenerate.
	* tests/base/malloc.h: Update expected results.
---

diff --git a/fixincludes/fixincl.x b/fixincludes/fixincl.x
index cb966829ba3..758d5620641 100644
--- a/fixincludes/fixincl.x
+++ b/fixincludes/fixincl.x
@@ -2,11 +2,11 @@
  *
  * DO NOT EDIT THIS FILE   (fixincl.x)
  *
- * It has been AutoGen-ed  September 17, 2020 at 03:10:47 PM by AutoGen 5.18
+ * It has been AutoGen-ed  October  3, 2020 at 11:40:52 PM by AutoGen 5.18
  * From the definitions    inclhack.def
  * and the template file   fixincl
  */
-/* DO NOT SVN-MERGE THIS FILE, EITHER Thu Sep 17 15:10:47 UTC 2020
+/* DO NOT SVN-MERGE THIS FILE, EITHER Sat Oct  3 23:40:52 UTC 2020
  *
  * You must regenerate it.  Use the ./genfixes script.
  *
@@ -943,7 +943,9 @@ tSCC* apzAix_MallocMachs[] = {
  *  content selection pattern - do fix if pattern found
  */
 tSCC zAix_MallocSelect0[] =
-       "#ifdef __cplusplus";
+       "#ifdef __cplusplus\n\
+extern \"C\" \\{\n\
+[ \t]extern \"builtin\" char \\*__alloca \\(size_t\\);";
 
 #define    AIX_MALLOC_TEST_CT  1
 static tTestDesc aAix_MallocTests[] = {
@@ -954,7 +956,9 @@ static tTestDesc aAix_MallocTests[] = {
  */
 static const char* apzAix_MallocPatch[] = {
     "format",
-    "#if (defined(__cplusplus) && defined(__IBMCPP__))",
+    "#if (defined(__cplusplus) && defined(__IBMCPP__))\n\
+extern \"C\" {\n\
+\textern \"builtin\" char *__alloca (size_t);",
     (char*)NULL };
 
 /* * * * * * * * * * * * * * * * * * * * * * * * * *
diff --git a/fixincludes/inclhack.def b/fixincludes/inclhack.def
index 6e59be981d6..47eb236586c 100644
--- a/fixincludes/inclhack.def
+++ b/fixincludes/inclhack.def
@@ -597,10 +597,16 @@ fix = {
     hackname  = aix_malloc;
     mach      = "*-*-aix*";
     files     = "malloc.h";
-    select    = "#ifdef __cplusplus";
+    select    = "#ifdef __cplusplus\n"
+                "extern \"C\" \\{\n"
+                "[ \t]extern \"builtin\" char \\*__alloca \\(size_t\\);";
     c_fix     = format;
-    c_fix_arg = "#if (defined(__cplusplus) && defined(__IBMCPP__))";
-    test_text = "#ifdef __cplusplus";
+    c_fix_arg = "#if (defined(__cplusplus) && defined(__IBMCPP__))\n"
+                "extern \"C\" {\n"
+	"\textern \"builtin\" char *__alloca (size_t);";
+    test_text = "#ifdef __cplusplus\n"
+                "extern \"C\" {\n"
+	"\textern \"builtin\" char *__alloca (size_t);";
 };
 
 /*
diff --git a/fixincludes/tests/base/malloc.h b/fixincludes/tests/base/malloc.h
index 15be8b02b88..b5d0e6e31c9 100644
--- a/fixincludes/tests/base/malloc.h
+++ b/fixincludes/tests/base/malloc.h
@@ -11,6 +11,8 @@
 
 #if defined( AIX_MALLOC_CHECK )
 #if (defined(__cplusplus) && defined(__IBMCPP__))
+extern "C" {
+	extern "builtin" char *__alloca (size_t);
 #endif  /* AIX_MALLOC_CHECK */