Add compat support for s390x

PATCH Dmitry V. Levin 1 participant 1 message Jan 19, 2018 1 message not in the archive s390

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Dmitry V. Levin

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2018-01-19 01:54 UTC #1 lore raw

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Quoted 37 lines · Eugene Syromyatnikov

By very popular demand.
=20
While we are here, let's refactor the condition for old_mmap_pgoff into an arch-specific one, as it is used more than in one place. =20
* NEWS: Mention this.
* configure.ac (case "$host_cpu" in) <s390x>: Set arch_m32 to s390, set cc_flags_m32 to -m31.
(st_MPERS([m32])): Add s390x.
* defs.h [S390X]: Define NEED_UID16_PARSERS.
* linux/s390/arch_sigreturn.c [!S390_FRAME_PTR] (S390_FRAME_PTR): New macro, define to s390_frame_ptr.
[!SIGNAL_FRAMESIZE] (SIGNAL_FRAMESIZE): New macro, define to __SIGNAL_FRAMESIZE.
[!PTR_TYPE] (PTR_TYPE): New macro, define to unsigned long. (arch_sigreturn): Use S390_FRAME_PTR, SIGNAL_FRAMESIZE, and PTR_TYPE instead of s390_frame_ptr, __SIGNAL_FRAMESIZE, and pointer-sized type, respectively.
* linux/s390/get_error.c [!ARCH_REGSET] (ARCH_REGSET): New macro, define
* to s390_regset.
(get_error): Use it instead of s390_regset.
* linux/s390/get_scno.c (arch_get_scno): Likewise.
* linux/s390/get_syscall_args.c (get_syscall_args): Likewise.
* linux/s390/set_error.c (arch_set_error, arch_set_success): Likewise.
* linux/s390/set_scno.c (arch_set_scno): Likewise.
* linux/s390x/arch_regs.c (psw_compat_t, s390_compat_regs, s390x_regs_union, s390_frame_ptr, s390x_frame_ptr, s390x_io): New variable.
(s390_regset, s390x_regset, ARCH_REGS_FOR_GETREGSET, ARCH_IOVEC_FOR_GETREGSET, ARCH_PC_REG, ARCH_PERSONALITY_0_IOV_SIZE, ARCH_PERSONALITY_1_IOV_SIZE): New macro.
* linux/s390x/arch_regs.h (s390_frame_ptr, s390x_frame_ptr): New external definitions.
* linux/s390x/arch_rt_sigframe.c: Behave based on tcp->currpers.
* linux/s390x/arch_sigreturn.c: Likewise.
* linux/s390x/get_error.c: Likewise.
* linux/s390x/get_scno.c: Likewise.

Quoted 8 lines

* linux/s390x/get_syscall_args.c: Likewise.
* linux/s390x/set_error.c: Likewise.
* linux/s390x/set_scno.c: Likewise.
* linux/s390x/errnoent1.h: New file.
* linux/s390x/ioctls_arch1.h: Likewise.
* linux/s390x/ioctls_inc1.h: Likewise.
* linux/s390x/signalent1.h: Likewise.
* linux/s390x/syscallent1.h: Likewise.

These new files had to be added to Makefile.am as well.

Quoted 8 lines

* supported_personalities.h [S390X]: Define SUPPORTED_PERSONALITIES to 2.
* tests/strace-V.test: Add s390 to the list of architectures that have m32 personality.
* linux/s390/arch_defs.h (HAVE_ARCH_OLD_MMAP_PGOFF): New definition.
* linux/s390x/arch_defs.h: Likewise.
* mem.c: Replace #ifdef S390 with #ifdef HAVE_ARCH_OLD_MMAP_PGOFF.
* pathtrace.c: Likewise.

Looks good, passes tests. Applied, thanks.

--=20
ldv

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