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After transition from long to kernel_ulong_t there are no mo
complications that required to keep a separate implementation
for x32 and mips n32.
* lseek.c (SYS_FUNC(lseek)): Merge two different implementations
into a single one.
In all places where LONG_LONG is used the destination already has type
unsigned long long, so it is quite natural to change LONG_LONG as well.
* defs.h (LONG_LONG): Rename to ULONG_LONG, change return type
from long long to unsigned long long. All callers updated.
current_klongsize checks are more universal, therefore they are usually
shorter and easier to comprehend.
* desc.c (umove_kulong_array_or_printaddr): Check for current_klongsize
instead of current_personality and current_wordsize.
* io.c (print_lld_from_low_high_val): Likewise.
* lseek.c (SYS_FUNC(lseek)): Likewise.
* resource.c (decode_rlimit): Likewise.
* syscall.c (is_negated_errno): Likewise.
* util.c (getllval, getarg_klu): Likewise.
This is the first step in the direction of revisiting current practice
of indiscriminate use of signed types for syscall arguments and memory
addresses.
* kernel_types.h (kernel_ureg_t): New type, typedef to unsigned long.
* defs.h (struct tcb): Change type of u_arg from long to kernel_ureg_t.
[HAVE_STRUCT_TCB_EXT_ARG]: Change type of ext_arg from long long
to unsigned long long.
* desc.c (decode_select): Change type of syscall arguments from long
to kernel_ureg_t.
(SYS_FUNC(oldselect)): Change type of select_args from long
to kernel_ureg_t.
* io.c (print_lld_from_low_high_val): Remove no longer needed cast
of syscall arguments to unsigned long.
* lseek.c (SYS_FUNC(lseek)): Cast syscall argument from unsigned long
to long.
* mem.c (print_mmap): Change type of syscall arguments from long
to kernel_ureg_t.
(SYS_FUNC(old_mmap), SYS_FUNC(old_mmap_pgoff)): Change type of u_arg
from long to kernel_ureg_t.
(SYS_FUNC(mmap), SYS_FUNC(mmap_pgoff), SYS_FUNC(mmap_pgoff)): Remove
no longer needed cast of syscall arguments to unsigned long.
* pathtrace.c (pathtrace_match): Change type of args and select_args
from long to kernel_ureg_t.
* util.c (getarg_ull): Remove no longer needed casts of syscall
arguments to unsigned types.
* lseek.c (SYS_FUNC(lseek)): Print offset using %lld format.
(SYS_FUNC(llseek)): Likewise. Treat high and low components of offset
as unsigned long integers.
* tests/llseek.c (main): Check that negative offset is printed properly.
* tests/lseek.c (main): Likewise.
Before this change, all files that exist since 20th century had
copyright headers, while most files that appeared later didn't. This
change fixes the inconsistency by adding missing copyright headers.
It doesn't mean that copyright headers became maintained. In my view,
git history provides much better information on this subject and is much
more accurate than copyright headers.
On x32, tcp->ext_arg is not initialized for i386 personality,
so tcp->u_arg has to be used instead.
* lseek.c (SYS_FUNC(lseek)) [X32]: Handle "current_personality == 1" case.
Introduce SYS_FUNC macro to declare and define all syscall parsers.
* Makefile.am (BUILT_SOURCES, CLEANFILES): Add sys_func.h.
(sys_func.h): New rule.
* defs.h (SYS_FUNC_NAME, SYS_FUNC): New macros.
* linux/syscall.h: Include "sys_func.h".
[NEED_UID16_PARSERS]: Use SYS_FUNC to declare uid16 syscall parsers.
Remove other declarations.
* linux/alpha/syscallent.h (160, 161): Add sys_ prefix to osf_statfs
and osf_fstatfs syscall parsers.
* *.c: Use SYS_FUNC to define syscall parsers.
