diff options
Diffstat (limited to 'lib/libc/glibc/sysdeps/powerpc/powerpc32/sysdep.h')
| -rw-r--r-- | lib/libc/glibc/sysdeps/powerpc/powerpc32/sysdep.h | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/lib/libc/glibc/sysdeps/powerpc/powerpc32/sysdep.h b/lib/libc/glibc/sysdeps/powerpc/powerpc32/sysdep.h index 0d431f56cd..2ba009e919 100644 --- a/lib/libc/glibc/sysdeps/powerpc/powerpc32/sysdep.h +++ b/lib/libc/glibc/sysdeps/powerpc/powerpc32/sysdep.h @@ -1,5 +1,5 @@ /* Assembly macros for 32-bit PowerPC. - Copyright (C) 1999-2019 Free Software Foundation, Inc. + Copyright (C) 1999-2020 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -14,7 +14,7 @@ You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ + <https://www.gnu.org/licenses/>. */ #include <sysdeps/powerpc/sysdep.h> @@ -157,4 +157,30 @@ GOT_LABEL: ; \ /* Label in text section. */ #define C_TEXT(name) name +/* Read the value of member from rtld_global_ro. */ +#ifdef PIC +# ifdef SHARED +# if IS_IN (rtld) +/* Inside ld.so we use the local alias to avoid runtime GOT + relocations. */ +# define __GLRO(rOUT, rGOT, member, offset) \ + lwz rOUT,_rtld_local_ro@got(rGOT); \ + lwz rOUT,offset(rOUT) +# else +# define __GLRO(rOUT, rGOT, member, offset) \ + lwz rOUT,_rtld_global_ro@got(rGOT); \ + lwz rOUT,offset(rOUT) +# endif +# else +# define __GLRO(rOUT, rGOT, member, offset) \ + lwz rOUT,member@got(rGOT); \ + lwz rOUT,0(rOUT) +# endif +#else +/* Position-dependent code does not require access to the GOT. */ +# define __GLRO(rOUT, rGOT, member, offset) \ + lis rOUT,(member+LOWORD)@ha; \ + lwz rOUT,(member+LOWORD)@l(rOUT) +#endif /* PIC */ + #endif /* __ASSEMBLER__ */ |