On Fri, 28 Jul 2017 13:26:41 +0300 "Dmitry V. Levin" <l...@altlinux.org> wrote:
> On Fri, Jul 28, 2017 at 08:33:57AM +0300, Edgar Kaziakhmedov wrote: > [...] > > Actually, I am not quite sure about ARM architectures, am I right > > there or not. (I mean ABI modes). Because, according to the current > > syscallent.h file in arm dir, there is not support for subcall in > > ARM EABI, is it correct? Because, in the kernel there is place for > > these subcalls. > > That's simple. If you have a look at the kernel, you'll see the > following: > > $ grep -Fw oabi arch/arm/tools/syscall.tbl > # <num> <abi> <name> [<entry > point> [<oabi compat entry point>]] # common > point> - for system calls shared between oabi and eabi (may > point> have compat) > # oabi - for oabi-only system calls (may have compat) > # For each syscall number, "common" is mutually exclusive with oabi > and eabi 13 oabi time sys_time > 22 oabi umount sys_oldumount > 25 oabi stime sys_stime > 27 oabi alarm sys_alarm > 30 oabi utime sys_utime > 76 oabi getrlimit sys_old_getrlimit > 82 oabi select sys_old_select > 89 oabi readdir sys_old_readdir > 90 oabi mmap sys_old_mmap > 102 oabi socketcall > sys_socketcall sys_oabi_socketcall 113 > oabi syscall sys_syscall 117 > oabi ipc sys_ipc > sys_oabi_ipc > > In other words, socketcall and ipc are implemented for oabi only, > on eabi they return ENOSYS. > > Yes, sure, however, am I right, that syscallent.h will be the same in sense of first 398 syscalls for ARM OABI and for ARM EABI? I'd say, that it'd be convinient to add #ifdef directive to syscalls, that are purposed for just OABI mode, and in case of EABI fill them as zero.
pgpU8KjMjJD34.pgp
Description: OpenPGP digital signature
------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot
_______________________________________________ Strace-devel mailing list Strace-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/strace-devel
