I used these shell commands:
../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")
and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 7061 files FOO.
I then removed trailing white space from math/tgmath.h,
support/tst-support-open-dev-null-range.c, and
sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following
obscure pre-commit check failure diagnostics from Savannah. I don't
know why I run into these diagnostics whereas others evidently do not.
remote: *** 912-#endif
remote: *** 913:
remote: *** 914-
remote: *** error: lines with trailing whitespace found
...
remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
I used these shell commands:
../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")
and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 6694 files FOO.
I then removed trailing white space from benchtests/bench-pthread-locks.c
and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this
diagnostic from Savannah:
remote: *** pre-commit check failed ...
remote: *** error: lines with trailing whitespace found
remote: error: hook declined to update refs/heads/master
GCC 9 dropped support for the SPE extensions to PowerPC, which means
powerpc*-*-*gnuspe* configurations are no longer buildable with that
compiler. This ISA extension was peculiar to the “e500” line of
embedded PowerPC chips, which, as far as I can tell, are no longer
being manufactured, so I think we should follow suit.
This patch was developed by grepping for “e500”, “__SPE__”, and
“__NO_FPRS__”, and may not eliminate every vestige of SPE support.
Most uses of __NO_FPRS__ are left alone, as they are relevant to
normal embedded PowerPC with soft-float.
* sysdeps/powerpc/preconfigure: Error out on powerpc-*-*gnuspe*
host type.
* scripts/build-many-glibcs.py: Remove powerpc-*-linux-gnuspe
and powerpc-*-linux-gnuspe-e500v1 from list of build configurations.
* sysdeps/powerpc/powerpc32/e500: Recursively delete.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/e500: Recursively delete.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/context-e500.h:
Delete.
* sysdeps/powerpc/fpu_control.h: Remove SPE variant.
Issue an #error if used with a compiler in SPE-float mode.
* sysdeps/powerpc/powerpc32/__longjmp_common.S
* sysdeps/powerpc/powerpc32/setjmp_common.S
* sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext-common.S
* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/getcontext.S
* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/setcontext.S
* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/swapcontext.S
* sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext-common.S
* sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext-common.S:
Remove code to preserve SPE register state.
* sysdeps/unix/sysv/linux/powerpc/elision-lock.c
* sysdeps/unix/sysv/linux/powerpc/elision-trylock.c
* sysdeps/unix/sysv/linux/powerpc/elision-unlock.c
Remove __SPE__ ifndefs.
As described in a recent glibc thread [1], the rt_sigreturn syscall
on setcontext and swapcontext is not used on default use and its
intention is no really supported since neither setcontext nor
swapcontext are async-signal-safe.
Checked on powerpc64-linux-gnu and powerpc-linux-gnu.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext-common.S:
Remove rt_sigreturn call.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext-common.S:
Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/setcontext.S: Likewie.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/swapcontext.S: Likewise.
[1] https://sourceware.org/ml/libc-alpha/2019-02/msg00367.html
http://sourceware.org/ml/libc-alpha/2013-08/msg00091.html
More LE support, correcting word accesses to _dl_hwcap.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext-common.S: Use
HIWORD/LOWORD.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext-common.S: Ditto.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext-common.S: Ditto.
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.
of non-volatile floating-point registers to the stack (fp14-fp31).
* sysdeps/powerpc/powerpc32/gprsave0.S: Add cfi_offset for spilling of
non-volatile general-purpose registers to the stack (gpr13-gpr31).
* sysdeps/powerpc/powerpc64/dl-trampoline.S: Add cfi_offset
for non-volatiles gpr30 - grp31 spilled to the stack.
* sysdeps/powerpc/powerpc64/memcpy.S: Add cfi_offset for non-volatile
gpr31 spill to the stack.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext-common.S:
Add cfi_offset for non-volatile gpr31 spill to the stack.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/clone.S: Add cfi_offset
for non-volatiles gpr28 - grp31 spilled to the stack.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/getcontext.S: Add
cfi_adjust_cfa_offset when a frame is stacked.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/setcontext.S:
(__novec_setcontext) : Add cfi_offset for non-volatile gpr31 spill
add LR saved to the stack. Add cfi_adjust_cfa_offset when frame is
stacked.
(__setcontext) : Add cfi_offset for non-volatile gpr31 spill to
the stack.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/swapcontext.S:
(__novec_swapcontext) : Add cfi_offset for non-volatile gpr31 spill
add LR saved to the stack.
(__swapcontext) : Add cfi_offset for non-volatile gpr31 spill add LR
saved to the stack. Add cfi_adjust_cfa_offset when frame is stacked.
Move common function to...
* sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext-common.S:
New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext.S:
Move common function to...
* sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext-common.S:
New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S:
Move common function to...
* sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext-common.S:
New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/ucontext_i.sym
(_FRAME_BACKCHAIN, _FRAME_LR_SAVE, _FRAME_PARM_SAVE1,
_FRAME_PARM_SAVE2, _FRAME_PARM_SAVE3, _FRAME_PARM_SAVE4):
Remove unrelated stack frame defines.
