patches/uClibc/0.9.32/160-fix-TLS-DTPREL-TPREL-macros.patch
author Michael Hope <michael.hope@linaro.org>
Wed Oct 19 15:27:32 2011 +1300 (2011-10-19)
changeset 2739 f320e22f2cba
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>
     1 ldso/mips: workaround for missing TLS macros in elfinterpret.c
     2 
     3 These macros declarations are missing, so gcc believes the code is calling
     4 a function, so any later linking will fail.
     5 
     6 Work this around by copying the mcaros from:
     7    libpthread/nptl/sysdeps/mips/dl-tls.h
     8 
     9 We can't include the header because of incompatible symbol declarations,
    10 so we just copy the macros for now.
    11 
    12 ---->  THIS IS A DIRTY HACK!  <----
    13 
    14 Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
    15 
    16 diff -durN uClibc-0.9.32.orig/ldso/ldso/mips/elfinterp.c uClibc-0.9.32/ldso/ldso/mips/elfinterp.c
    17 --- uClibc-0.9.32.orig/ldso/ldso/mips/elfinterp.c	2011-06-08 21:35:20.000000000 +0200
    18 +++ uClibc-0.9.32/ldso/ldso/mips/elfinterp.c	2011-09-12 14:02:37.553628824 +0200
    19 @@ -34,6 +34,21 @@
    20  
    21  #define OFFSET_GP_GOT 0x7ff0
    22  
    23 +/* The thread pointer points 0x7000 past the first static TLS block.  */
    24 +#define TLS_TP_OFFSET           0x7000
    25 +
    26 +/* Dynamic thread vector pointers point 0x8000 past the start of each
    27 + *    TLS block.  */
    28 +#define TLS_DTV_OFFSET          0x8000
    29 +
    30 +/* Compute the value for a GOTTPREL reloc.  */
    31 +#define TLS_TPREL_VALUE(sym_map, sym_val) \
    32 +  ((sym_map)->l_tls_offset + sym_val - TLS_TP_OFFSET)
    33 +
    34 +/* Compute the value for a DTPREL reloc.  */
    35 +#define TLS_DTPREL_VALUE(sym_val) \
    36 +  (sym_val - TLS_DTV_OFFSET)
    37 +
    38  unsigned long __dl_runtime_resolve(unsigned long sym_index,
    39  	unsigned long old_gpreg)
    40  {