[patch] MIPS/ELF64: Set text address beyond 4 GB

[Maciej W. Rozycki]

Hello,

 Setting text segment's start address above 4 GB for 64-bit executables
aids in finding unportable software -- if a pointer is cropped to 32 bits,
instead of a possible memory corruption a segmentation fault is sent as
nothing is mapped below text normally.  Here is a patch for MIPS/ELF64 --
basically nothing new: copied from the Alpha's default.

2003-05-21  Maciej W. Rozycki  <macro@ds2.pg.gda.pl>

	* emulparams/elf64btsmip.sh: Set TEXT_START_ADDR to 0x120000000 to
	trap on pointer crops.

 OK to apply?

  Maciej

-- 
+  Maciej W. Rozycki, Technical University of Gdansk, Poland   +
+--------------------------------------------------------------+
+        e-mail: macro@ds2.pg.gda.pl, PGP key available        +

binutils-2.13.91-20030515-mips64-text_start.patch
diff -up --recursive --new-file binutils.macro/ld/emulparams/elf64btsmip.sh binutils/ld/emulparams/elf64btsmip.sh
--- binutils.macro/ld/emulparams/elf64btsmip.sh	2003-05-14 12:11:22.000000000 +0000
+++ binutils/ld/emulparams/elf64btsmip.sh	2003-05-21 07:01:42.000000000 +0000
@@ -14,4 +14,5 @@ OTHER_SECTIONS='
   .gptab.sbss : { *(.gptab.bss) *(.gptab.sbss) }
 '
 
+TEXT_START_ADDR="0x120000000"
 TEXT_DYNAMIC=