8 Commits

Author SHA1 Message Date
92e347b556 Add copyright headers to some files that lack them
We do our best to keep copyright headers up to date, yet
git history provides better information on this subject
and is more accurate than copyright headers.
2018-12-24 23:46:43 +00:00
51d89ef0a0 Refactor get_syscall_args() and get_error()
* linux/*/get_error.c: Rename all arch-specific implementations
of get_error() to arch_get_error().
* linux/*/get_syscall_args.c: Rename all arch-specific implementations
of get_syscall_args() to arch_get_syscall_args().
* syscall.c (get_syscall_args, get_error): New functions.
(tamper_with_syscall_exiting, get_syscall_result): Do not clear
tcp->u_error before get_error() invocation as the latter does it now.
2018-12-05 16:10:05 +00:00
Eugene Syromyatnikov
e26e9dacda linux/ia64: remove IA-32 mode support
There is no compat support in strace and there are no systems
within reach that would allow to test it.

* linux/ia64/arch_regs.c (IA64_PSR_IS, ia64_ia32mode): Remove.
* linux/ia64/get_error.c (get_error): Remove ia64_ia32mode branch.
* linux/ia64/get_scno.c (arch_get_scno): Likewise.
* linux/ia64/get_syscall_args.c (get_syscall_args): Likewise.
* linux/ia64/set_error.c (arch_set_error, arch_set_success): Likewise.
* linux/ia64/set_scno.c (arch_set_scno): Likewise.
2018-02-12 11:42:04 +00:00
c7e8fc0e63 ia64: do not bail out in get_syscall_args if umove fails with EPERM
If the kernel contains commit 84d77d3f06e7e8dea057d10e8ec77ad71f721be3,
both PTRACE_PEEKDATA and process_vm_readv become unavailable when the
process dumpable flag is cleared, on ia64 this results to all syscall
arguments being unavailable.

Recognize this situation and do not treat it as get_syscall_args error
because the latter leaves the tracee in a ptrace stop.

This condition used to be triggered by prctl-dumpable test that caused
strace to hang indefinitely.

* linux/ia64/get_syscall_args.c (get_syscall_args): Do not bail out
if umove fails.
* tests/prctl-dumpable.c [__ia64__]: Skip the test.
2018-01-24 01:56:15 +00:00
1e889f684d syscall: move all ia64 specific includes to an arch specific file
* syscall.c [IA64]: Remove.
* linux/ia64/get_syscall_args.c: Include <asm/rse.h>.
2017-12-24 18:49:26 +00:00
0eda4a0a4b upeek, upoke: change argument types from long to unsigned long
* defs.h (upeek, upoke): Change offset argument type from long
to unsigned long.  Change res argument type from long to kernel_ureg_t.
* upeek.c (upeek): Likewise.
* upoke.c (upoke.c): Likewise.
* syscall.c (print_pc) [ARCH_PC_PEEK_ADDR]: Change pc type from long
to kernel_ureg_t.
* linux/aarch64/arch_regs.c (arm_sp_ptr): Remove redundant cast.
* linux/metag/get_syscall_args.c (get_syscall_args): Likewise.
* linux/sh/get_syscall_result.c (get_syscall_result_regs): Likewise.
* linux/sh64/get_syscall_result.c (get_syscall_result_regs): Likewise.
* linux/powerpc/getregs_old.c (getregs_old): Remove redundant casts.
* linux/alpha/arch_getrval2.c (getrval2): Change r20 type from long
to unsigned long.
* linux/alpha/arch_regs.c (alpha_r0, alpha_a3): Change type from long
to unsigned long.
* linux/bfin/arch_regs.c (bfin_r0): Likewise.
* linux/crisv10/arch_regs.c (cris_r10): Likewise.
* linux/hppa/arch_regs.c (hppa_r28): Likewise.
* linux/ia64/arch_regs.c (IA64_PSR_IS): Likewise.
* linux/microblaze/arch_regs.c (microblaze_r3): Likewise.
* linux/sh/arch_regs.c (sh_r0): Likewise.
* linux/sh64/arch_regs.c (sh64_r9): Likewise.
* linux/xtensa/arch_regs.c (xtensa_a2): Likewise.
* linux/alpha/arch_sigreturn.c (arch_sigreturn): Change addr type
from long to unsigned long.
* linux/microblaze/arch_sigreturn.c (arch_sigreturn): Likewise.
* linux/alpha/get_scno.c (arch_get_scno): Update for the change
of signedness.
* linux/arc/get_syscall_args.c (get_syscall_args): Change arc_args type
from pointer to long to pointer to unsigned long.
* linux/arm/arch_regs.c (arm_sp_ptr): Change type from pointer to long
to pointer to unsigned long.
* linux/arm/arch_regs.h (arm_sp_ptr): Likewise.
* linux/i386/arch_regs.c (i386_esp_ptr): Likewise.
* linux/i386/arch_regs.h (i386_esp_ptr): Likewise.
* linux/m68k/arch_regs.c (m68k_usp_ptr): Likewise.
* linux/m68k/arch_regs.h (m68k_usp_ptr): Likewise.
* linux/ia64/get_syscall_args.c (get_syscall_args): Use umove
instead of umoven.
* linux/sh/arch_getrval2.c (getrval2): Change val type from long
to unsigned long.
2016-12-25 20:14:12 +00:00
64672a6526 cleanup: make get_syscall_args.c files more readable
Make get_syscall_args.c files more self-contained.  While they are
still being included by syscall.c, the latter no longer defines
get_syscall_args function.

* linux/aarch64/get_syscall_args.c: Include "arm/get_syscall_args.c"
with get_syscall_args temporarily defined to arm_get_syscall_args.
(get_syscall_args): Define.
* linux/alpha/get_syscall_args.c (get_syscall_args): Define.
* linux/arc/get_syscall_args.c: Likewise.
* linux/arm/get_syscall_args.c: Likewise.
* linux/avr32/get_syscall_args.c: Likewise.
* linux/bfin/get_syscall_args.c: Likewise.
* linux/crisv10/get_syscall_args.c: Likewise.
* linux/hppa/get_syscall_args.c: Likewise.
* linux/i386/get_syscall_args.c: Likewise.
* linux/ia64/get_syscall_args.c: Likewise.
* linux/m68k/get_syscall_args.c: Likewise.
* linux/metag/get_syscall_args.c: Likewise.
* linux/microblaze/get_syscall_args.c: Likewise.
* linux/mips/get_syscall_args.c: Likewise.
* linux/nios2/get_syscall_args.c: Likewise.
* linux/or1k/get_syscall_args.c: Likewise.
* linux/powerpc/get_syscall_args.c: Likewise.
* linux/s390/get_syscall_args.c: Likewise.
* linux/sh/get_syscall_args.c: Likewise.
* linux/sh64/get_syscall_args.c: Likewise.
* linux/sparc/get_syscall_args.c: Likewise.
* linux/tile/get_syscall_args.c: Likewise.
* linux/x86_64/get_syscall_args.c: Likewise.
* linux/xtensa/get_syscall_args.c: Likewise.
* syscall.c (get_syscall_args): Remove.
Include "get_syscall_args.c" in file scope.

Requested-by: Denys Vlasenko <dvlasenk@redhat.com>
2015-11-30 00:57:14 +00:00
d70d1c4aa6 syscall.c: split arch specific code into separate arch files
Split code that use arch-specific registers to separate arch files.

* syscall.c: Move definitions of variables containing fetched registers
to linux/*/arch_regs.c files.
[HAVE_GETRVAL2] (getrval2): Move arch-specific code
to linux/*/arch_getrval2.c, include "arch_getrval2.c".
(print_pc): Move arch-specific code to linux/*/print_pc.c files,
include "print_pc.c".
[X86_64] (x86_64_getregs_old): Rename to getregs_old, move to
linux/x86_64/getregs_old.c, include "getregs_old.c".
[POWERPC] (powerpc_getregs_old): Rename to getregs_old, move to
linux/powerpc/getregs_old.c, include "getregs_old.c".
(get_regs) [X86_64, POWERPC]: Update callers.
(get_scno): Move arch-specific code to linux/*/get_scno.c,
include "get_scno.c".
(get_syscall_args): Move arch-specific code
to linux/*/get_syscall_args.c, include "get_syscall_args.c".
(get_error): Move arch-specific code to linux/*/get_error.c,
include "get_error.c".
(get_syscall_result): Move arch-specific code
to linux/*/get_syscall_result.c, include "get_syscall_result.c".
* Makefile.am (EXTRA_DIST): Add new linux/*/*.c files.
2015-03-23 22:24:59 +00:00