1 files changed, 75 insertions, 0 deletions
diff --git a/packages/glibc/2.26/0001-aarch64-rewrite-elf_machine_load_address.patch b/packages/glibc/2.26/0001-aarch64-rewrite-elf_machine_load_address.patch
new file mode 100644
index 00000000..14c0780b
--- /dev/null
+++ b/packages/glibc/2.26/0001-aarch64-rewrite-elf_machine_load_address.patch
@@ -0,0 +1,75 @@
+commit a68ba2f3cd3cbe32c1f31e13c20ed13487727b32
+Author: Szabolcs Nagy <szabolcs.nagy@arm.com>
+Date:   Wed Oct 18 17:26:23 2017 +0100
+
+    [AARCH64] Rewrite elf_machine_load_address using _DYNAMIC symbol
+    
+    This patch rewrites aarch64 elf_machine_load_address to use special _DYNAMIC
+    symbol instead of _dl_start.
+    
+    The static address of _DYNAMIC symbol is stored in the first GOT entry.
+    Here is the change which makes this solution work (part of binutils 2.24):
+    https://sourceware.org/ml/binutils/2013-06/msg00248.html
+    
+    i386, x86_64 targets use the same method to do this as well.
+    
+    The original implementation relies on a trick that R_AARCH64_ABS32 relocation
+    being resolved at link time and the static address fits in the 32bits.
+    However, in LP64, normally, the address is defined to be 64 bit.
+    
+    Here is the C version one which should be portable in all cases.
+    
+            * sysdeps/aarch64/dl-machine.h (elf_machine_load_address): Use
+            _DYNAMIC symbol to calculate load address.
+
+---
+ sysdeps/aarch64/dl-machine.h |   37 ++++---------------------------------
+ 1 file changed, 4 insertions(+), 33 deletions(-)
+
+--- a/sysdeps/aarch64/dl-machine.h
++++ b/sysdeps/aarch64/dl-machine.h
+@@ -51,40 +51,11 @@
+   /* To figure out the load address we use the definition that for any symbol:
+      dynamic_addr(symbol) = static_addr(symbol) + load_addr
+ 
+-     The choice of symbol is arbitrary. The static address we obtain
+-     by constructing a non GOT reference to the symbol, the dynamic
+-     address of the symbol we compute using adrp/add to compute the
+-     symbol's address relative to the PC.
+-     This depends on 32/16bit relocations being resolved at link time
+-     and that the static address fits in the 32/16 bits.  */
++    _DYNAMIC sysmbol is used here as its link-time address stored in
++    the special unrelocated first GOT entry.  */
+ 
+-  ElfW(Addr) static_addr;
+-  ElfW(Addr) dynamic_addr;
+-
+-  asm ("					\n"
+-"	adrp	%1, _dl_start;			\n"
+-#ifdef __LP64__
+-"	add	%1, %1, #:lo12:_dl_start	\n"
+-#else
+-"	add	%w1, %w1, #:lo12:_dl_start	\n"
+-#endif
+-"	ldr	%w0, 1f				\n"
+-"	b	2f				\n"
+-"1:						\n"
+-#ifdef __LP64__
+-"	.word	_dl_start			\n"
+-#else
+-# ifdef __AARCH64EB__
+-"	.short  0                               \n"
+-# endif
+-"	.short  _dl_start                       \n"
+-# ifndef __AARCH64EB__
+-"	.short  0                               \n"
+-# endif
+-#endif
+-"2:						\n"
+-    : "=r" (static_addr),  "=r" (dynamic_addr));
+-  return dynamic_addr - static_addr;
++    extern ElfW(Dyn) _DYNAMIC[] attribute_hidden;
++    return (ElfW(Addr)) &_DYNAMIC - elf_machine_dynamic ();
+ }
+ 
+ /* Set up the loaded object described by L so its unrelocated PLT