patches/glibc/2.9/390-2.3.3_pre20040117-pt_pax.patch
author Michael Hope <michael.hope@linaro.org>
Wed Oct 19 15:27:32 2011 +1300 (2011-10-19)
changeset 2739 f320e22f2cba
parent 1201 c9967a6e3b25
permissions -rw-r--r--
arch: add softfp support

Some architectures support a mixed hard/soft floating point, where
the compiler emits hardware floating point instructions, but passes
the operands in core (aka integer) registers.

For example, ARM supports this mode (to come in the next changeset).

Add support for softfp cross compilers to the GCC and GLIBC
configuration. Needed for Ubuntu and other distros that are softfp.

Signed-off-by: Michael Hope <michael.hope@linaro.org>
[yann.morin.1998@anciens.enib.fr: split the original patch]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
yann@1201
     1
Original patch from: gentoo/src/patchsets/glibc/2.9/3010_all_2.3.3_pre20040117-pt_pax.patch
yann@1201
     2
yann@1201
     3
-= BEGIN original header =-
yann@1201
     4
-= END original header =-
yann@1201
     5
yann@1201
     6
diff -durN glibc-2_9.orig/elf/elf.h glibc-2_9/elf/elf.h
yann@1201
     7
--- glibc-2_9.orig/elf/elf.h	2008-10-01 21:41:34.000000000 +0200
yann@1201
     8
+++ glibc-2_9/elf/elf.h	2009-02-02 22:01:21.000000000 +0100
yann@1201
     9
@@ -571,6 +571,7 @@
yann@1201
    10
 #define PT_GNU_EH_FRAME	0x6474e550	/* GCC .eh_frame_hdr segment */
yann@1201
    11
 #define PT_GNU_STACK	0x6474e551	/* Indicates stack executability */
yann@1201
    12
 #define PT_GNU_RELRO	0x6474e552	/* Read-only after relocation */
yann@1201
    13
+#define PT_PAX_FLAGS	0x65041580	/* Indicates PaX flag markings */
yann@1201
    14
 #define PT_LOSUNW	0x6ffffffa
yann@1201
    15
 #define PT_SUNWBSS	0x6ffffffa	/* Sun Specific segment */
yann@1201
    16
 #define PT_SUNWSTACK	0x6ffffffb	/* Stack segment */
yann@1201
    17
@@ -584,6 +585,18 @@
yann@1201
    18
 #define PF_X		(1 << 0)	/* Segment is executable */
yann@1201
    19
 #define PF_W		(1 << 1)	/* Segment is writable */
yann@1201
    20
 #define PF_R		(1 << 2)	/* Segment is readable */
yann@1201
    21
+#define PF_PAGEEXEC	(1 << 4)	/* Enable  PAGEEXEC */
yann@1201
    22
+#define PF_NOPAGEEXEC	(1 << 5)	/* Disable PAGEEXEC */
yann@1201
    23
+#define PF_SEGMEXEC	(1 << 6)	/* Enable  SEGMEXEC */
yann@1201
    24
+#define PF_NOSEGMEXEC	(1 << 7)	/* Disable SEGMEXEC */
yann@1201
    25
+#define PF_MPROTECT	(1 << 8)	/* Enable  MPROTECT */
yann@1201
    26
+#define PF_NOMPROTECT	(1 << 9)	/* Disable MPROTECT */
yann@1201
    27
+#define PF_RANDEXEC	(1 << 10)	/* Enable  RANDEXEC */
yann@1201
    28
+#define PF_NORANDEXEC	(1 << 11)	/* Disable RANDEXEC */
yann@1201
    29
+#define PF_EMUTRAMP	(1 << 12)	/* Enable  EMUTRAMP */
yann@1201
    30
+#define PF_NOEMUTRAMP	(1 << 13)	/* Disable EMUTRAMP */
yann@1201
    31
+#define PF_RANDMMAP	(1 << 14)	/* Enable  RANDMMAP */
yann@1201
    32
+#define PF_NORANDMMAP	(1 << 15)	/* Disable RANDMMAP */
yann@1201
    33
 #define PF_MASKOS	0x0ff00000	/* OS-specific */
yann@1201
    34
 #define PF_MASKPROC	0xf0000000	/* Processor-specific */
yann@1201
    35