Split up stackguard-macros.h into sysdeps directories.

fbataill · May 15, 2012 · a953889 · a953889
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commit a953889
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Showing 12 changed files with 53 additions and 34 deletions.
diff --git a/ChangeLog b/ChangeLog
@@ -1,5 +1,18 @@
 2012-05-15  Joseph Myers  <[email protected]>
 
+	* elf/stackguard-macros.h: Remove file.
+	* sysdeps/generic/stackguard-macros.h: New file.
+	* sysdeps/i386/stackguard-macros.h: Likewise.
+	* sysdeps/powerpc/powerpc32/stackguard-macros.h: Likewise.
+	* sysdeps/powerpc/powerpc64/stackguard-macros.h: Likewise.
+	* sysdeps/s390/s390-32/stackguard-macros.h: Likewise.
+	* sysdeps/s390/s390-64/stackguard-macros.h: Likewise.
+	* sysdeps/sparc/sparc32/stackguard-macros.h: Likewise.
+	* sysdeps/sparc/sparc64/stackguard-macros.h: Likewise.
+	* sysdeps/x86_64/stackguard-macros.h: Likewise.
+	* nptl/tst-stackguard1.c: Include <stackguard-macros.h> not
+	<elf/stackguard-macros.h>.
+
 	[BZ #14109]
 	* sysdeps/unix/sysv/linux/powerpc/sys/procfs.h (elf_vrreg_t): Use
 	__aligned__ in attribute.

diff --git a/elf/stackguard-macros.h b/elf/stackguard-macros.h
diff --git a/nptl/tst-stackguard1.c b/nptl/tst-stackguard1.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2005 Free Software Foundation, Inc.
+/* Copyright (C) 2005-2012 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Jakub Jelinek <[email protected]>, 2005.
 
@@ -23,7 +23,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <sys/wait.h>
-#include <elf/stackguard-macros.h>
+#include <stackguard-macros.h>
 #include <unistd.h>
 
 static const char *command;

diff --git a/sysdeps/generic/stackguard-macros.h b/sysdeps/generic/stackguard-macros.h
@@ -0,0 +1,4 @@
+#include <stdint.h>
+
+extern uintptr_t __stack_chk_guard;
+#define STACK_CHK_GUARD __stack_chk_guard
diff --git a/sysdeps/i386/stackguard-macros.h b/sysdeps/i386/stackguard-macros.h
@@ -0,0 +1,4 @@
+#include <stdint.h>
+
+#define STACK_CHK_GUARD \
+  ({ uintptr_t x; asm ("movl %%gs:0x14, %0" : "=r" (x)); x; })
diff --git a/sysdeps/powerpc/powerpc32/stackguard-macros.h b/sysdeps/powerpc/powerpc32/stackguard-macros.h
@@ -0,0 +1,4 @@
+#include <stdint.h>
+
+#define STACK_CHK_GUARD \
+  ({ uintptr_t x; asm ("lwz %0,-28680(2)" : "=r" (x)); x; })
diff --git a/sysdeps/powerpc/powerpc64/stackguard-macros.h b/sysdeps/powerpc/powerpc64/stackguard-macros.h
@@ -0,0 +1,4 @@
+#include <stdint.h>
+
+#define STACK_CHK_GUARD \
+  ({ uintptr_t x; asm ("ld %0,-28688(13)" : "=r" (x)); x; })
diff --git a/sysdeps/s390/s390-32/stackguard-macros.h b/sysdeps/s390/s390-32/stackguard-macros.h
@@ -0,0 +1,4 @@
+#include <stdint.h>
+
+#define STACK_CHK_GUARD \
+  ({ uintptr_t x; asm ("ear %0,%%a0; l %0,0x14(%0)" : "=a" (x)); x; })
diff --git a/sysdeps/s390/s390-64/stackguard-macros.h b/sysdeps/s390/s390-64/stackguard-macros.h
@@ -0,0 +1,4 @@
+#include <stdint.h>
+
+#define STACK_CHK_GUARD \
+  ({ uintptr_t x; asm ("ear %0,%%a0; sllg %0,%0,32; ear %0,%%a1; lg %0,0x28(%0)" : "=a" (x)); x; })
diff --git a/sysdeps/sparc/sparc32/stackguard-macros.h b/sysdeps/sparc/sparc32/stackguard-macros.h
@@ -0,0 +1,4 @@
+#include <stdint.h>
+
+#define STACK_CHK_GUARD \
+  ({ uintptr_t x; asm ("ld [%%g7+0x14], %0" : "=r" (x)); x; })
diff --git a/sysdeps/sparc/sparc64/stackguard-macros.h b/sysdeps/sparc/sparc64/stackguard-macros.h
@@ -0,0 +1,4 @@
+#include <stdint.h>
+
+#define STACK_CHK_GUARD \
+  ({ uintptr_t x; asm ("ldx [%%g7+0x28], %0" : "=r" (x)); x; })
diff --git a/sysdeps/x86_64/stackguard-macros.h b/sysdeps/x86_64/stackguard-macros.h
@@ -0,0 +1,6 @@
+#include <stdint.h>
+
+#define STACK_CHK_GUARD \
+  ({ uintptr_t x;						\
+     asm ("mov %%fs:%c1, %0" : "=r" (x)				\
+	  : "i" (offsetof (tcbhead_t, stack_guard))); x; })