I've just committed STT_GNU_IFUNC ppc/ppc64 support into prelink,
and this patch is needed on the glibc side. Without it ld.so segfaults,
as in dl-conflict.c sym_map is always NULL. While dl-machine.h could use
RESOLVE_CONFLICT_FIND_MAP macro to compute it, it doesn't make sense,
because with prelink we know it is already properly relocated (all relative
relocations are applied by prelink).
2009-01-11 Ryan S. Arnold <rsa@us.ibm.com>
[BZ #9726]
* sysdeps/powerpc/fpu/tst-setcontext-fpscr.c (_SET_DI_FPSCR,
_SET_SI_FPSCR): Clobber fp0 to prevent erroneous test-case passes.
2009-01-08 Ryan S. Arnold <rsa@us.ibm.com>
[BZ #9726]
* sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext-common.S
(__CONTEXT_FUNC_NAME): Fix mtfsf to use fp31 instead of fp0.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext-common.S
(__CONTEXT_FUNC_NAME): Fix mtfsf to use fp31 instead of fp0.
2008-11-13 Ryan S. Arnold <rsa@us.ibm.com>
[BZ #6411]
* sysdeps/powerpc/fpu/Makefile: Added test case tst-setcontext-fpscr.
* sysdeps/powerpc/fpu/feholdexcpt.c (_FPU_MASK_ALL): Define to replace
magic numbers.
* sysdeps/powerpc/fpu/fenv_libc.h (fesetenv_register): Dynamically
choose mtfsf insn based on PPC_FEATURE_HAS_DFP.
(relax_fenv_state): Same as above.
(FPSCR_29): Reserve bit in ISA 2.05.
(FPSCR_NI): Provide define for compat.
* sysdeps/powerpc/fpu/fesetenv.c (_FPU_MASK_ALL): Define to replace
magic numbers.
* sysdeps/powerpc/fpu/feupdateenv.c (_FPU_MASK_ALL): Define to replace
magic numbers.
* sysdeps/powerpc/fpu/tst-setcontext-fpscr.c: New file. Test case to
test setcontext and swapcontext with dynamic 64-bit FPSCR detection.
* sysdeps/powerpc/powerpc32/fpu/__longjmp-common.S (__longjmp): Adjust
access to hwcap to account for hwcap size increase to uint64_t.
* sysdeps/powerpc/powerpc32/fpu/setjmp-common.S (__sigsetjmp ):
Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext-common.S
(*setcontext): Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/power6/fpu/setcontext.S:
New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/power6/fpu/swapcontext.S:
New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext-common.S
(*setcontext): dynamically select mtfsf insn based on
PPC_FEATURE_HAS_DFP. Adjust access to hwcap to account for hwcap size
increase to uint64_t.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext-common.S
(*swapcontext): dynamically select mtfsf insn based on
PPC_FEATURE_HAS_DFP. Adjust access to hwcap to account for hwcap size
increase to uint64_t.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/power6/fpu/setcontext.S:
New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/power6/fpu/swapcontext.S:
New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/setcontext.S
(*setcontext): dynamically select mtfsf insn based on
PPC_FEATURE_HAS_DFP.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/swapcontext.S
(*swapcontext): dynamically select mtfsf insn based on
PPC_FEATURE_HAS_DFP.
2008-08-14 Ryan S. Arnold <rsa@us.ibm.com>
[BZ #6845]
* sysdeps/powerpc/fpu/bits/mathinline.h (__signbitl): Copy new
__signbitl definition and __LONG_DOUBLE_128__ guard from:
* sysdeps/unix/sysv/linux/powerpc/bits/mathinline.h: Remove as
redundant. Functions which call floating point assembler operations
should go into a sysdeps powerpc/fpu directory.
2008-08-01 Steven Munroe <sjmunroe@us.ibm.com>
Carlos Eduardo Seo <cseo@linux.vnet.ibm.com>
[BZ #6817]
* sysdeps/powerpc/dl-procinfo.c (_dl_powerpc_cap_flags):
Added the members 'vsx' and 'arch_2_06'.
(_dl_powerpc_platforms): Add the member 'power7'.
* sysdeps/powerpc/dl-procinfo.h: Modify _DL_HWCAP_FIRST
to reflect the changes required by VSX and ISA 2.06.
Modify _DL_PLATFORMS_COUNT to reflect the addition of
'power7'.
Defined PPC_PLATFORM_POWER7.
(_dl_string_platform): Add support for POWER7.
* sysdeps/powerpc/sysdep.h: Define bit masks for VSX
capability and ISA 2.06.
__fe_nomask_env.
* sysdeps/powerpc/fpu/fe_nomask.c: Add libm_hidden_def.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/fe_nomask.c: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/fpu/fe_nomask.c: Likewise.
* sysdeps/powerpc/bits/fenv.h: Make safe for C++.
* sysdeps/unix/sysv/linux/powerpc/bits/mathinline.h: New file.
* sysdeps/powerpc/fpu/fegetexcept.c (__fegetexcept): Rename
function from fegetexcept and make old name weak alias.
* include/fenv.h: Declare __fegetexcept.
* sysdeps/powerpc/fpu/fedisblxcpt.c: Use __fegetexcept instead of
fegetexcept.
* sysdeps/powerpc/fpu/feenablxcpt.c: Likewise.
* sysdeps/powerpc/fpu/fraiseexcpt.c (__feraiseexcept): Avoid call
to fetestexcept.
* sysdeps/ieee754/ldbl-128ibm/s_log1pl.c (__log1pl): Use __frexpl
instead of frexpl to avoid local PLT.
* math/s_significandl.c (__significandl): Use __ilogbl instead of
ilogbl to avoid local PLT.
* sysdeps/ieee754/ldbl-128ibm/s_expm1l.c (__expm1l): Use __ldexpl
instead of ldexpl to avoid local PLT.
* sysdeps/ieee754/ldbl-128ibm/e_expl.c (__ieee754_expl): Use
__roundl not roundl to avoid local PLT.
* sysdeps/ieee754/ldbl-128/e_j0l.c: Use function names which avoid
local PLTs. Use __sincosl instead of separate sinl and cosl
calls.
* sysdeps/ieee754/ldbl-128/e_j1l.c: Likewise.
* sysdeps/powerpc/powerpc32/fpu/s_lround.S (__lround): Fixed erroneous
result when x is +/-nextafter(+/-0.5,-/+1) i.e. all 1's in the
mantissa.
* sysdeps/powerpc/powerpc32/power4/fpu/s_llround.S (__llround):
Likewise. Also account for when x is an odd number between 2^52
and 2^53-1.
* sysdeps/powerpc/powerpc64/fpu/s_llround.S (__llround): Likewise.
* sysdeps/powerpc/powerpc64/fpu/s_llroundf.S (__llroundf): Likewise.
* math/libm-test.inc (lround_test, llround_test): Added test cases to
detect aforementioned erroneous conditions.
2008-01-24 Steven Munroe <sjmunroe@us.ibm.com>
[BZ #5741]
* sysdeps/powerpc/powerpc64/dl-machine.h (PPC_DCBT, PPC_DCBF):
Define additonal Data Cache Block instruction macros.
(elf_machine_fixup_plt): Add dcbt for opd and plt entries.
Replace dcbst with dcbf and sync with sync/isync.
* sysdeps/powerpc/powerpc32/power4/hp-timing.h: New file.
* sysdeps/powerpc/powerpc64/hp-timing.h [_ARCH_PWR4] (HP_TIMING_NOW):
For ISA 2.01 and later replace mftb with mfspr 268.
* sysdeps/i386/i686/memcpy.S: Optimize copying of equally aligned
buffers.
