toolchain/uClibc/patches-0.9.30.1/901-hi_lo_system_calls.patch

   1 The kernel does not save these registers across system calls.  GCC 4.4
   2 has gotten more agressive about using them for temporary variables, so
   3 this shows up as intermittent crashes if you use a recent compiler.
   4
   5 Signed-off-by: Daniel Jacobowitz <dan@codesourcery.com>
   6
   7 diff --git a/libc/sysdeps/linux/mips/bits/syscalls.h b/libc/sysdeps/linux/mips/bits/syscalls.h
   8 index 3639913..28b0f91 100644
   9 --- a/libc/sysdeps/linux/mips/bits/syscalls.h
  10 +++ b/libc/sysdeps/linux/mips/bits/syscalls.h
  11 @@ -261,7 +261,7 @@
  12  })
  13
  14  #define __SYSCALL_CLOBBERS "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13", \
  15 -       "$14", "$15", "$24", "$25", "memory"
  16 +       "$14", "$15", "$24", "$25", "hi", "lo", "memory"
  17
  18  #else /* N32 || N64 */
  19
  20 @@ -318,7 +318,7 @@
  21  })
  22
  23  #define __SYSCALL_CLOBBERS "$1", "$3", "$10", "$11", "$12", "$13", \
  24 -       "$14", "$15", "$24", "$25", "memory"
  25 +       "$14", "$15", "$24", "$25", "hi", "lo", "memory"
  26
  27  #endif
  28
  29
  30 --