CVS log for src/lib/libc/arch/arm/sys/__clone.S

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Pull up following revision(s) (requested by skrll in ticket #1329):

	lib/libc/arch/arm/gen/swapcontext.S: revision 1.18
	sys/external/bsd/compiler_rt/dist/lib/builtins/arm/divsi3.S: revision 1.2
	sys/external/bsd/compiler_rt/dist/lib/builtins/arm/divsi3.S: revision 1.3
	sys/external/bsd/compiler_rt/dist/lib/builtins/arm/aeabi_cfcmp.S: revision 1.2
	sys/external/bsd/compiler_rt/dist/lib/builtins/arm/aeabi_cfcmp.S: revision 1.3
	lib/libc/arch/arm/sys/__clone.S: revision 1.10
	lib/libc/arch/arm/sys/__clone.S: revision 1.11
	sys/external/bsd/compiler_rt/dist/lib/builtins/arm/modsi3.S: revision 1.2
	lib/libc/arch/arm/sys/__clone.S: revision 1.12
	sys/external/bsd/compiler_rt/dist/lib/builtins/arm/modsi3.S: revision 1.3
	lib/libc/arch/arm/sys/__clone.S: revision 1.13
	lib/libc/arch/arm/sys/__clone.S: revision 1.14
	sys/external/bsd/compiler_rt/dist/lib/builtins/arm/divmodsi4.S: revision 1.2
	sys/external/bsd/compiler_rt/dist/lib/builtins/arm/divmodsi4.S: revision 1.3
	lib/libc/arch/arm/gen/swapcontext.S: revision 1.16
	lib/libc/arch/arm/gen/swapcontext.S: revision 1.17

Align sp to 8-byte boundary as required by EABI.

This is especially important for non-leaf functions; GCC optimizes codes
based on assumption that sp is aligned properly.

Mostly fix broken earmv5 userland compiled by GCC10 due to alignment
faults in ld.elf_so, where {ld,st}rd are used for [sp, #8x].

No regression for ATF is observed for earmv[67]{,hf}{,eb}.

Align sp to 8-byte boundary as required by EABI.
IIUC, this change only affects libc compiled for ``Thumb-mode userland'',
which we've not officially supported yet.

Fix previous. For Thumb-1:
- sp cannot be manipulated directly
- {add,sub}s should be used instead of {add,sub}

Trailing whitespace

The _INVOKE_CERROR macro deals with thumb so simplify the code (at the
expense of a couple more instructions).

Do previous differently by pushing even number of registers and remove
strange r7 usage.

Do previous differtly by pushing two registers in the same way as the
_INVOKE_CERROR macro

Do previous differtly by pushing two registers in the same way as the
_INVOKE_CERROR macro

The _INVOKE_CERROR macro deals with thumb so simplify the code (at the
expense of a couple more instructions).

Trailing whitespace

Fix previous. For Thumb-1:
- sp cannot be manipulated directly
- {add,sub}s should be used instead of {add,sub}

Align sp to 8-byte boundary as required by EABI.

IIUC, this change only affects libc compiled for ``Thumb-mode userland'',
which we've not officially supported yet.

Rebase to HEAD as of a few days ago.

sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs.  ("Protocol error: too many arguments")

Use PLT_SYM.

Use less got, add END(), make thumb tolerant.

CERROR is now hidden so no need to call it via the PLT

More thumb support

It's "its."

Use RETc for returning.  When v4T or later use BX for calling the target.

NetBSD/acorn26 has been using APCS-32 for years, so unifdef -U__APCS_26__.

Catch up to -current.

Catch up to -current.

Pull up revision 1.3 (requested by mycroft in ticket #737):
Do the appropriate PIC magic for the jump to _exit().

Do the appropriate PIC magic for the jump to _exit().

Local label fixup.

Catch up to -current.

file __clone.S was added on branch nathanw_sa on 2001-10-08 20:17:07 +0000

Add __clone() for arm.