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In MIPS syscall(2), .cpload was added to an the error path, but it was
not enough for ABIs other then O32. Use SETUP_GP, SETUP_GP64 and
RESTORE_GP64 to handle all ABIs. This patch fixes an error path of
MIPS pipe(2) too.
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Daniel Jacobowitz on the mailing list. More information available at <http://www.uclibc.org/lists/uclibc/2007-May/017968.html> .
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The "make headers_install" in kernel 2.6.18 does not export
asm-mips/asm.h, asm-mips/regdef.h and asm-mips/sysmips.h. Do not use
them. We can use sys/asm.h and sys/regdef.h instead. The sysmips.h
part of this patch is came from glibc 2.4 code.
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>>>>> On Tue, 19 Oct 2004 13:28:34 -0600, Erik Andersen <andersen@codepoet.org> said:
>> BTW, top of uClibc TODO list is "Fix syscall() on mips". What is a
>> problem?
andersen> It appears that uClibc's syscall() for mips works ok for
andersen> syscalls with a few arguments. But as I recall, it does not
andersen> work properly with _syscall5, _syscall6, _syscall7, etc.
andersen> Perhaps there is some mistake in its assumptions about the
andersen> mips/linux ABI regarding which syscall arguments are passed
andersen> via register vs which syscall arguments are passed on the
andersen> stack.
Hmm... I found a old fix in uClibc ML archive.
http://www.uclibc.org/lists/uclibc/2002-September/004459.html
But it seems somewhat broken. How about this fix instead? I tested
mmap with syscall() in mips. mips64 is not tested.
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should instead have been testing for '#ifdef __PIC__'. This resulted in
NON-PIC code getting mixed into the shared library. Oops!!!
-Erik
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