patches/glibc/ports-2.10.1/350-pre20040117-pt_pax.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Sep 12 23:38:18 2010 +0200 (2010-09-12)
changeset 2120 48de021b3a9e
permissions -rw-r--r--
arch/mips: add experimental mips64 samples

Both toolchains were tested to successfully:
- _build_ busybox, giving respectively an n32 and an n64 binary
although it has not been run-tested.
- build linux-2.6.36-rc3 for Loongson, giving an n64 vmlinux
(which is expected, due to the way the kernel is built),
and the kernel properly boots!

Credits are due to Julien MOUTHINO (julm on freenode#uClibc) for
testing that the kernel boots on his hardware! Cheers! ;-)

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
     1 
     2 
     3 diff -durN glibc-2.10.1.orig/elf/elf.h glibc-2.10.1/elf/elf.h
     4 --- glibc-2.10.1.orig/elf/elf.h	2009-04-15 02:15:54.000000000 +0200
     5 +++ glibc-2.10.1/elf/elf.h	2009-11-13 00:50:35.000000000 +0100
     6 @@ -572,6 +572,7 @@
     7  #define PT_GNU_EH_FRAME	0x6474e550	/* GCC .eh_frame_hdr segment */
     8  #define PT_GNU_STACK	0x6474e551	/* Indicates stack executability */
     9  #define PT_GNU_RELRO	0x6474e552	/* Read-only after relocation */
    10 +#define PT_PAX_FLAGS	0x65041580	/* Indicates PaX flag markings */
    11  #define PT_LOSUNW	0x6ffffffa
    12  #define PT_SUNWBSS	0x6ffffffa	/* Sun Specific segment */
    13  #define PT_SUNWSTACK	0x6ffffffb	/* Stack segment */
    14 @@ -585,6 +586,18 @@
    15  #define PF_X		(1 << 0)	/* Segment is executable */
    16  #define PF_W		(1 << 1)	/* Segment is writable */
    17  #define PF_R		(1 << 2)	/* Segment is readable */
    18 +#define PF_PAGEEXEC	(1 << 4)	/* Enable  PAGEEXEC */
    19 +#define PF_NOPAGEEXEC	(1 << 5)	/* Disable PAGEEXEC */
    20 +#define PF_SEGMEXEC	(1 << 6)	/* Enable  SEGMEXEC */
    21 +#define PF_NOSEGMEXEC	(1 << 7)	/* Disable SEGMEXEC */
    22 +#define PF_MPROTECT	(1 << 8)	/* Enable  MPROTECT */
    23 +#define PF_NOMPROTECT	(1 << 9)	/* Disable MPROTECT */
    24 +#define PF_RANDEXEC	(1 << 10)	/* Enable  RANDEXEC */
    25 +#define PF_NORANDEXEC	(1 << 11)	/* Disable RANDEXEC */
    26 +#define PF_EMUTRAMP	(1 << 12)	/* Enable  EMUTRAMP */
    27 +#define PF_NOEMUTRAMP	(1 << 13)	/* Disable EMUTRAMP */
    28 +#define PF_RANDMMAP	(1 << 14)	/* Enable  RANDMMAP */
    29 +#define PF_NORANDMMAP	(1 << 15)	/* Disable RANDMMAP */
    30  #define PF_MASKOS	0x0ff00000	/* OS-specific */
    31  #define PF_MASKPROC	0xf0000000	/* Processor-specific */
    32