mirror of
https://sourceware.org/git/binutils-gdb.git
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0f83012ea0
Tidy up calls to read HWCAP (and HWCAP2) by adding common functions, removing the PPC and AArch64 specific versions. The only function difference is in aarch64_linux_core_read_description - if the hwcap read fails it now return a valid description instead of nullptr. gdb/ChangeLog: 2019-03-25 Alan Hayward <alan.hayward@arm.com> * aarch64-linux-nat.c (aarch64_linux_nat_target::read_description): Call linux_get_hwcap. * aarch64-linux-tdep.c (aarch64_linux_core_read_description): Likewise. (aarch64_linux_get_hwcap): Remove function. * aarch64-linux-tdep.h (aarch64_linux_get_hwcap): Remove declaration. * arm-linux-nat.c (arm_linux_nat_target::read_description):Call linux_get_hwcap. * arm-linux-tdep.c (arm_linux_core_read_description): Likewise. * linux-tdep.c (linux_get_hwcap): Add function. (linux_get_hwcap2): Likewise. * linux-tdep.h (linux_get_hwcap): Add declaration. (linux_get_hwcap2): Likewise. * ppc-linux-nat.c (ppc_linux_get_hwcap): Remove function. (ppc_linux_get_hwcap2): Likewise. (ppc_linux_nat_target::region_ok_for_hw_watchpoint): Call linux_get_hwcap. (ppc_linux_nat_target::insert_watchpoint): Likewise. (ppc_linux_nat_target::watchpoint_addr_within_range): Likewise. (ppc_linux_nat_target::read_description): Likewise. * ppc-linux-tdep.c (ppc_linux_core_read_description): Likewise. * s390-linux-nat.c: Likewise. * s390-linux-tdep.c (s390_core_read_description): Likewise.
1206 lines
36 KiB
C
1206 lines
36 KiB
C
/* Target-dependent code for GNU/Linux on s390.
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Copyright (C) 2001-2019 Free Software Foundation, Inc.
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Contributed by D.J. Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com)
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for IBM Deutschland Entwicklung GmbH, IBM Corporation.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "auxv.h"
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#include "elf/common.h"
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#include "frame-base.h"
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#include "frame-unwind.h"
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#include "gdbarch.h"
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#include "gdbcore.h"
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#include "linux-record.h"
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#include "linux-tdep.h"
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#include "objfiles.h"
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#include "osabi.h"
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#include "regcache.h"
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#include "record-full.h"
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#include "regset.h"
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#include "s390-tdep.h"
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#include "s390-linux-tdep.h"
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#include "solib-svr4.h"
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#include "target.h"
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#include "trad-frame.h"
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#include "xml-syscall.h"
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#include "features/s390-linux32v1.c"
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#include "features/s390-linux32v2.c"
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#include "features/s390-linux64.c"
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#include "features/s390-linux64v1.c"
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#include "features/s390-linux64v2.c"
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#include "features/s390-te-linux64.c"
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#include "features/s390-vx-linux64.c"
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#include "features/s390-tevx-linux64.c"
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#include "features/s390-gs-linux64.c"
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#include "features/s390x-linux64v1.c"
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#include "features/s390x-linux64v2.c"
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#include "features/s390x-te-linux64.c"
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#include "features/s390x-vx-linux64.c"
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#include "features/s390x-tevx-linux64.c"
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#include "features/s390x-gs-linux64.c"
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#define XML_SYSCALL_FILENAME_S390 "syscalls/s390-linux.xml"
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#define XML_SYSCALL_FILENAME_S390X "syscalls/s390x-linux.xml"
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/* Register handling. */
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/* Implement cannot_store_register gdbarch method. */
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static int
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s390_cannot_store_register (struct gdbarch *gdbarch, int regnum)
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{
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/* The last-break address is read-only. */
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return regnum == S390_LAST_BREAK_REGNUM;
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}
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/* Implement write_pc gdbarch method. */
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static void
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s390_write_pc (struct regcache *regcache, CORE_ADDR pc)
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{
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struct gdbarch *gdbarch = regcache->arch ();
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struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
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regcache_cooked_write_unsigned (regcache, tdep->pc_regnum, pc);
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/* Set special SYSTEM_CALL register to 0 to prevent the kernel from
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messing with the PC we just installed, if we happen to be within
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an interrupted system call that the kernel wants to restart.
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Note that after we return from the dummy call, the SYSTEM_CALL and
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ORIG_R2 registers will be automatically restored, and the kernel
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continues to restart the system call at this point. */
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if (register_size (gdbarch, S390_SYSTEM_CALL_REGNUM) > 0)
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regcache_cooked_write_unsigned (regcache, S390_SYSTEM_CALL_REGNUM, 0);
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}
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/* Maps for register sets. */
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static const struct regcache_map_entry s390_gregmap[] =
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{
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{ 1, S390_PSWM_REGNUM },
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{ 1, S390_PSWA_REGNUM },
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{ 16, S390_R0_REGNUM },
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{ 16, S390_A0_REGNUM },
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{ 1, S390_ORIG_R2_REGNUM },
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{ 0 }
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};
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static const struct regcache_map_entry s390_fpregmap[] =
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{
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{ 1, S390_FPC_REGNUM, 8 },
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{ 16, S390_F0_REGNUM, 8 },
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{ 0 }
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};
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static const struct regcache_map_entry s390_regmap_upper[] =
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{
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{ 16, S390_R0_UPPER_REGNUM, 4 },
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{ 0 }
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};
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static const struct regcache_map_entry s390_regmap_last_break[] =
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{
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{ 1, REGCACHE_MAP_SKIP, 4 },
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{ 1, S390_LAST_BREAK_REGNUM, 4 },
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{ 0 }
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};
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static const struct regcache_map_entry s390x_regmap_last_break[] =
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{
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{ 1, S390_LAST_BREAK_REGNUM, 8 },
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{ 0 }
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};
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static const struct regcache_map_entry s390_regmap_system_call[] =
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{
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{ 1, S390_SYSTEM_CALL_REGNUM, 4 },
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{ 0 }
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};
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static const struct regcache_map_entry s390_regmap_tdb[] =
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{
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{ 1, S390_TDB_DWORD0_REGNUM, 8 },
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{ 1, S390_TDB_ABORT_CODE_REGNUM, 8 },
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{ 1, S390_TDB_CONFLICT_TOKEN_REGNUM, 8 },
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{ 1, S390_TDB_ATIA_REGNUM, 8 },
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{ 12, REGCACHE_MAP_SKIP, 8 },
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{ 16, S390_TDB_R0_REGNUM, 8 },
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{ 0 }
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};
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static const struct regcache_map_entry s390_regmap_vxrs_low[] =
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{
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{ 16, S390_V0_LOWER_REGNUM, 8 },
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{ 0 }
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};
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static const struct regcache_map_entry s390_regmap_vxrs_high[] =
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{
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{ 16, S390_V16_REGNUM, 16 },
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{ 0 }
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};
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static const struct regcache_map_entry s390_regmap_gs[] =
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{
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{ 1, REGCACHE_MAP_SKIP, 8 },
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{ 1, S390_GSD_REGNUM, 8 },
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{ 1, S390_GSSM_REGNUM, 8 },
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{ 1, S390_GSEPLA_REGNUM, 8 },
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{ 0 }
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};
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static const struct regcache_map_entry s390_regmap_gsbc[] =
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{
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{ 1, REGCACHE_MAP_SKIP, 8 },
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{ 1, S390_BC_GSD_REGNUM, 8 },
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{ 1, S390_BC_GSSM_REGNUM, 8 },
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{ 1, S390_BC_GSEPLA_REGNUM, 8 },
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{ 0 }
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};
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/* Supply the TDB regset. Like regcache_supply_regset, but invalidate
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the TDB registers unless the TDB format field is valid. */
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static void
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s390_supply_tdb_regset (const struct regset *regset, struct regcache *regcache,
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int regnum, const void *regs, size_t len)
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{
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ULONGEST tdw;
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enum register_status ret;
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regcache_supply_regset (regset, regcache, regnum, regs, len);
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ret = regcache_cooked_read_unsigned (regcache, S390_TDB_DWORD0_REGNUM, &tdw);
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if (ret != REG_VALID || (tdw >> 56) != 1)
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regcache_supply_regset (regset, regcache, regnum, NULL, len);
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}
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const struct regset s390_gregset = {
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s390_gregmap,
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regcache_supply_regset,
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regcache_collect_regset
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};
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const struct regset s390_fpregset = {
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s390_fpregmap,
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regcache_supply_regset,
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regcache_collect_regset
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};
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static const struct regset s390_upper_regset = {
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s390_regmap_upper,
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regcache_supply_regset,
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regcache_collect_regset
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};
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const struct regset s390_last_break_regset = {
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s390_regmap_last_break,
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regcache_supply_regset,
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regcache_collect_regset
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};
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const struct regset s390x_last_break_regset = {
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s390x_regmap_last_break,
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regcache_supply_regset,
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regcache_collect_regset
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};
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const struct regset s390_system_call_regset = {
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s390_regmap_system_call,
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regcache_supply_regset,
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regcache_collect_regset
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};
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const struct regset s390_tdb_regset = {
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s390_regmap_tdb,
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s390_supply_tdb_regset,
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regcache_collect_regset
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};
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const struct regset s390_vxrs_low_regset = {
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s390_regmap_vxrs_low,
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regcache_supply_regset,
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regcache_collect_regset
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};
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const struct regset s390_vxrs_high_regset = {
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s390_regmap_vxrs_high,
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regcache_supply_regset,
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regcache_collect_regset
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};
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const struct regset s390_gs_regset = {
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s390_regmap_gs,
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regcache_supply_regset,
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regcache_collect_regset
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};
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const struct regset s390_gsbc_regset = {
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s390_regmap_gsbc,
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regcache_supply_regset,
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regcache_collect_regset
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};
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/* Iterate over supported core file register note sections. */
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static void
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s390_iterate_over_regset_sections (struct gdbarch *gdbarch,
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iterate_over_regset_sections_cb *cb,
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void *cb_data,
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const struct regcache *regcache)
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{
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struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
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const int gregset_size = (tdep->abi == ABI_LINUX_S390 ?
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s390_sizeof_gregset : s390x_sizeof_gregset);
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cb (".reg", gregset_size, gregset_size, &s390_gregset, NULL, cb_data);
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cb (".reg2", s390_sizeof_fpregset, s390_sizeof_fpregset, &s390_fpregset, NULL,
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cb_data);
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if (tdep->abi == ABI_LINUX_S390 && tdep->gpr_full_regnum != -1)
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cb (".reg-s390-high-gprs", 16 * 4, 16 * 4, &s390_upper_regset,
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"s390 GPR upper halves", cb_data);
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if (tdep->have_linux_v1)
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cb (".reg-s390-last-break", 8, 8,
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(gdbarch_ptr_bit (gdbarch) == 32
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? &s390_last_break_regset : &s390x_last_break_regset),
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"s390 last-break address", cb_data);
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if (tdep->have_linux_v2)
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cb (".reg-s390-system-call", 4, 4, &s390_system_call_regset,
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"s390 system-call", cb_data);
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/* If regcache is set, we are in "write" (gcore) mode. In this
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case, don't iterate over the TDB unless its registers are
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available. */
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if (tdep->have_tdb
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&& (regcache == NULL
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|| (REG_VALID
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== regcache->get_register_status (S390_TDB_DWORD0_REGNUM))))
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cb (".reg-s390-tdb", s390_sizeof_tdbregset, s390_sizeof_tdbregset,
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&s390_tdb_regset, "s390 TDB", cb_data);
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if (tdep->v0_full_regnum != -1)
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{
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cb (".reg-s390-vxrs-low", 16 * 8, 16 * 8, &s390_vxrs_low_regset,
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"s390 vector registers 0-15 lower half", cb_data);
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cb (".reg-s390-vxrs-high", 16 * 16, 16 * 16, &s390_vxrs_high_regset,
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"s390 vector registers 16-31", cb_data);
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}
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/* Iterate over the guarded-storage regsets if in "read" mode, or if
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their registers are available. */
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if (tdep->have_gs)
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{
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if (regcache == NULL
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|| REG_VALID == regcache->get_register_status (S390_GSD_REGNUM))
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cb (".reg-s390-gs-cb", 4 * 8, 4 * 8, &s390_gs_regset,
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"s390 guarded-storage registers", cb_data);
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if (regcache == NULL
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|| REG_VALID == regcache->get_register_status (S390_BC_GSD_REGNUM))
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cb (".reg-s390-gs-bc", 4 * 8, 4 * 8, &s390_gsbc_regset,
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"s390 guarded-storage broadcast control", cb_data);
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}
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}
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/* Implement core_read_description gdbarch method. */
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static const struct target_desc *
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s390_core_read_description (struct gdbarch *gdbarch,
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struct target_ops *target, bfd *abfd)
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{
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asection *section = bfd_get_section_by_name (abfd, ".reg");
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CORE_ADDR hwcap = linux_get_hwcap (target);
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bool high_gprs, v1, v2, te, vx, gs;
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if (!section)
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return NULL;
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high_gprs = (bfd_get_section_by_name (abfd, ".reg-s390-high-gprs")
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!= NULL);
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v1 = (bfd_get_section_by_name (abfd, ".reg-s390-last-break") != NULL);
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v2 = (bfd_get_section_by_name (abfd, ".reg-s390-system-call") != NULL);
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vx = (hwcap & HWCAP_S390_VX);
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te = (hwcap & HWCAP_S390_TE);
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gs = (hwcap & HWCAP_S390_GS);
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switch (bfd_section_size (abfd, section))
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{
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case s390_sizeof_gregset:
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if (high_gprs)
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return (gs ? tdesc_s390_gs_linux64 :
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te && vx ? tdesc_s390_tevx_linux64 :
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vx ? tdesc_s390_vx_linux64 :
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te ? tdesc_s390_te_linux64 :
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v2 ? tdesc_s390_linux64v2 :
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v1 ? tdesc_s390_linux64v1 : tdesc_s390_linux64);
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else
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return (v2 ? tdesc_s390_linux32v2 :
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v1 ? tdesc_s390_linux32v1 : tdesc_s390_linux32);
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case s390x_sizeof_gregset:
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return (gs ? tdesc_s390x_gs_linux64 :
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te && vx ? tdesc_s390x_tevx_linux64 :
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vx ? tdesc_s390x_vx_linux64 :
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te ? tdesc_s390x_te_linux64 :
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v2 ? tdesc_s390x_linux64v2 :
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v1 ? tdesc_s390x_linux64v1 : tdesc_s390x_linux64);
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default:
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return NULL;
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}
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}
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/* Frame unwinding. */
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/* Signal trampoline stack frames. */
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struct s390_sigtramp_unwind_cache {
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CORE_ADDR frame_base;
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struct trad_frame_saved_reg *saved_regs;
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};
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/* Unwind THIS_FRAME and return the corresponding unwind cache for
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s390_sigtramp_frame_unwind. */
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static struct s390_sigtramp_unwind_cache *
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s390_sigtramp_frame_unwind_cache (struct frame_info *this_frame,
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void **this_prologue_cache)
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{
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struct gdbarch *gdbarch = get_frame_arch (this_frame);
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struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
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int word_size = gdbarch_ptr_bit (gdbarch) / 8;
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enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
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struct s390_sigtramp_unwind_cache *info;
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ULONGEST this_sp, prev_sp;
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CORE_ADDR next_ra, next_cfa, sigreg_ptr, sigreg_high_off;
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int i;
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if (*this_prologue_cache)
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return (struct s390_sigtramp_unwind_cache *) *this_prologue_cache;
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info = FRAME_OBSTACK_ZALLOC (struct s390_sigtramp_unwind_cache);
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*this_prologue_cache = info;
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info->saved_regs = trad_frame_alloc_saved_regs (this_frame);
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this_sp = get_frame_register_unsigned (this_frame, S390_SP_REGNUM);
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next_ra = get_frame_pc (this_frame);
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next_cfa = this_sp + 16*word_size + 32;
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/* New-style RT frame:
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retcode + alignment (8 bytes)
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siginfo (128 bytes)
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ucontext (contains sigregs at offset 5 words). */
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if (next_ra == next_cfa)
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{
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sigreg_ptr = next_cfa + 8 + 128 + align_up (5*word_size, 8);
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/* sigregs are followed by uc_sigmask (8 bytes), then by the
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upper GPR halves if present. */
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sigreg_high_off = 8;
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}
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/* Old-style RT frame and all non-RT frames:
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old signal mask (8 bytes)
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pointer to sigregs. */
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else
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{
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sigreg_ptr = read_memory_unsigned_integer (next_cfa + 8,
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word_size, byte_order);
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/* sigregs are followed by signo (4 bytes), then by the
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upper GPR halves if present. */
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sigreg_high_off = 4;
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}
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/* The sigregs structure looks like this:
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long psw_mask;
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|
long psw_addr;
|
|
long gprs[16];
|
|
int acrs[16];
|
|
int fpc;
|
|
int __pad;
|
|
double fprs[16]; */
|
|
|
|
/* PSW mask and address. */
|
|
info->saved_regs[S390_PSWM_REGNUM].addr = sigreg_ptr;
|
|
sigreg_ptr += word_size;
|
|
info->saved_regs[S390_PSWA_REGNUM].addr = sigreg_ptr;
|
|
sigreg_ptr += word_size;
|
|
|
|
/* Then the GPRs. */
|
|
for (i = 0; i < 16; i++)
|
|
{
|
|
info->saved_regs[S390_R0_REGNUM + i].addr = sigreg_ptr;
|
|
sigreg_ptr += word_size;
|
|
}
|
|
|
|
/* Then the ACRs. */
|
|
for (i = 0; i < 16; i++)
|
|
{
|
|
info->saved_regs[S390_A0_REGNUM + i].addr = sigreg_ptr;
|
|
sigreg_ptr += 4;
|
|
}
|
|
|
|
/* The floating-point control word. */
|
|
info->saved_regs[S390_FPC_REGNUM].addr = sigreg_ptr;
|
|
sigreg_ptr += 8;
|
|
|
|
/* And finally the FPRs. */
|
|
for (i = 0; i < 16; i++)
|
|
{
|
|
info->saved_regs[S390_F0_REGNUM + i].addr = sigreg_ptr;
|
|
sigreg_ptr += 8;
|
|
}
|
|
|
|
/* If we have them, the GPR upper halves are appended at the end. */
|
|
sigreg_ptr += sigreg_high_off;
|
|
if (tdep->gpr_full_regnum != -1)
|
|
for (i = 0; i < 16; i++)
|
|
{
|
|
info->saved_regs[S390_R0_UPPER_REGNUM + i].addr = sigreg_ptr;
|
|
sigreg_ptr += 4;
|
|
}
|
|
|
|
/* Restore the previous frame's SP. */
|
|
prev_sp = read_memory_unsigned_integer (
|
|
info->saved_regs[S390_SP_REGNUM].addr,
|
|
word_size, byte_order);
|
|
|
|
/* Determine our frame base. */
|
|
info->frame_base = prev_sp + 16*word_size + 32;
|
|
|
|
return info;
|
|
}
|
|
|
|
/* Implement this_id frame_unwind method for s390_sigtramp_frame_unwind. */
|
|
|
|
static void
|
|
s390_sigtramp_frame_this_id (struct frame_info *this_frame,
|
|
void **this_prologue_cache,
|
|
struct frame_id *this_id)
|
|
{
|
|
struct s390_sigtramp_unwind_cache *info
|
|
= s390_sigtramp_frame_unwind_cache (this_frame, this_prologue_cache);
|
|
*this_id = frame_id_build (info->frame_base, get_frame_pc (this_frame));
|
|
}
|
|
|
|
/* Implement prev_register frame_unwind method for sigtramp frames. */
|
|
|
|
static struct value *
|
|
s390_sigtramp_frame_prev_register (struct frame_info *this_frame,
|
|
void **this_prologue_cache, int regnum)
|
|
{
|
|
struct s390_sigtramp_unwind_cache *info
|
|
= s390_sigtramp_frame_unwind_cache (this_frame, this_prologue_cache);
|
|
return s390_trad_frame_prev_register (this_frame, info->saved_regs, regnum);
|
|
}
|
|
|
|
/* Implement sniffer frame_unwind method for sigtramp frames. */
|
|
|
|
static int
|
|
s390_sigtramp_frame_sniffer (const struct frame_unwind *self,
|
|
struct frame_info *this_frame,
|
|
void **this_prologue_cache)
|
|
{
|
|
CORE_ADDR pc = get_frame_pc (this_frame);
|
|
bfd_byte sigreturn[2];
|
|
|
|
if (target_read_memory (pc, sigreturn, 2))
|
|
return 0;
|
|
|
|
if (sigreturn[0] != op_svc)
|
|
return 0;
|
|
|
|
if (sigreturn[1] != 119 /* sigreturn */
|
|
&& sigreturn[1] != 173 /* rt_sigreturn */)
|
|
return 0;
|
|
|
|
return 1;
|
|
}
|
|
|
|
/* S390 sigtramp frame unwinder. */
|
|
|
|
static const struct frame_unwind s390_sigtramp_frame_unwind = {
|
|
SIGTRAMP_FRAME,
|
|
default_frame_unwind_stop_reason,
|
|
s390_sigtramp_frame_this_id,
|
|
s390_sigtramp_frame_prev_register,
|
|
NULL,
|
|
s390_sigtramp_frame_sniffer
|
|
};
|
|
|
|
/* Syscall handling. */
|
|
|
|
/* Retrieve the syscall number at a ptrace syscall-stop. Return -1
|
|
upon error. */
|
|
|
|
static LONGEST
|
|
s390_linux_get_syscall_number (struct gdbarch *gdbarch,
|
|
thread_info *thread)
|
|
{
|
|
struct regcache *regs = get_thread_regcache (thread);
|
|
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
|
|
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
|
|
ULONGEST pc;
|
|
ULONGEST svc_number = -1;
|
|
unsigned opcode;
|
|
|
|
/* Assume that the PC points after the 2-byte SVC instruction. We
|
|
don't currently support SVC via EXECUTE. */
|
|
regcache_cooked_read_unsigned (regs, tdep->pc_regnum, &pc);
|
|
pc -= 2;
|
|
opcode = read_memory_unsigned_integer ((CORE_ADDR) pc, 1, byte_order);
|
|
if (opcode != op_svc)
|
|
return -1;
|
|
|
|
svc_number = read_memory_unsigned_integer ((CORE_ADDR) pc + 1, 1,
|
|
byte_order);
|
|
if (svc_number == 0)
|
|
regcache_cooked_read_unsigned (regs, S390_R1_REGNUM, &svc_number);
|
|
|
|
return svc_number;
|
|
}
|
|
|
|
/* Process record-replay */
|
|
|
|
static struct linux_record_tdep s390_linux_record_tdep;
|
|
static struct linux_record_tdep s390x_linux_record_tdep;
|
|
|
|
/* Record all registers but PC register for process-record. */
|
|
|
|
static int
|
|
s390_all_but_pc_registers_record (struct regcache *regcache)
|
|
{
|
|
struct gdbarch *gdbarch = regcache->arch ();
|
|
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
|
|
int i;
|
|
|
|
for (i = 0; i < 16; i++)
|
|
{
|
|
if (record_full_arch_list_add_reg (regcache, S390_R0_REGNUM + i))
|
|
return -1;
|
|
if (record_full_arch_list_add_reg (regcache, S390_A0_REGNUM + i))
|
|
return -1;
|
|
if (record_full_arch_list_add_reg (regcache, S390_F0_REGNUM + i))
|
|
return -1;
|
|
if (tdep->gpr_full_regnum != -1)
|
|
if (record_full_arch_list_add_reg (regcache, S390_R0_UPPER_REGNUM + i))
|
|
return -1;
|
|
if (tdep->v0_full_regnum != -1)
|
|
{
|
|
if (record_full_arch_list_add_reg (regcache, S390_V0_LOWER_REGNUM + i))
|
|
return -1;
|
|
if (record_full_arch_list_add_reg (regcache, S390_V16_REGNUM + i))
|
|
return -1;
|
|
}
|
|
}
|
|
if (record_full_arch_list_add_reg (regcache, S390_PSWM_REGNUM))
|
|
return -1;
|
|
if (record_full_arch_list_add_reg (regcache, S390_FPC_REGNUM))
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Canonicalize system call SYSCALL belonging to ABI. Helper for
|
|
s390_linux_syscall_record. */
|
|
|
|
static enum gdb_syscall
|
|
s390_canonicalize_syscall (int syscall, enum s390_abi_kind abi)
|
|
{
|
|
switch (syscall)
|
|
{
|
|
/* s390 syscall numbers < 222 are mostly the same as x86, so just list
|
|
the exceptions. */
|
|
case 0:
|
|
return gdb_sys_no_syscall;
|
|
case 7:
|
|
return gdb_sys_restart_syscall;
|
|
/* These syscalls work only on 31-bit. */
|
|
case 13: /* time */
|
|
case 16: /* lchown[16] */
|
|
case 23: /* setuid[16] */
|
|
case 24: /* getuid[16] */
|
|
case 25: /* stime */
|
|
case 46: /* setgid[16] */
|
|
case 47: /* getgid[16] */
|
|
case 49: /* seteuid[16] */
|
|
case 50: /* getegid[16] */
|
|
case 70: /* setreuid[16] */
|
|
case 71: /* setregid[16] */
|
|
case 76: /* [old_]getrlimit */
|
|
case 80: /* getgroups[16] */
|
|
case 81: /* setgroups[16] */
|
|
case 95: /* fchown[16] */
|
|
case 101: /* ioperm */
|
|
case 138: /* setfsuid[16] */
|
|
case 139: /* setfsgid[16] */
|
|
case 140: /* _llseek */
|
|
case 164: /* setresuid[16] */
|
|
case 165: /* getresuid[16] */
|
|
case 170: /* setresgid[16] */
|
|
case 171: /* getresgid[16] */
|
|
case 182: /* chown[16] */
|
|
case 192: /* mmap2 */
|
|
case 193: /* truncate64 */
|
|
case 194: /* ftruncate64 */
|
|
case 195: /* stat64 */
|
|
case 196: /* lstat64 */
|
|
case 197: /* fstat64 */
|
|
case 221: /* fcntl64 */
|
|
if (abi == ABI_LINUX_S390)
|
|
return (enum gdb_syscall) syscall;
|
|
return gdb_sys_no_syscall;
|
|
/* These syscalls don't exist on s390. */
|
|
case 17: /* break */
|
|
case 18: /* oldstat */
|
|
case 28: /* oldfstat */
|
|
case 31: /* stty */
|
|
case 32: /* gtty */
|
|
case 35: /* ftime */
|
|
case 44: /* prof */
|
|
case 53: /* lock */
|
|
case 56: /* mpx */
|
|
case 58: /* ulimit */
|
|
case 59: /* oldolduname */
|
|
case 68: /* sgetmask */
|
|
case 69: /* ssetmask */
|
|
case 82: /* [old_]select */
|
|
case 84: /* oldlstat */
|
|
case 98: /* profil */
|
|
case 109: /* olduname */
|
|
case 113: /* vm86old */
|
|
case 123: /* modify_ldt */
|
|
case 166: /* vm86 */
|
|
return gdb_sys_no_syscall;
|
|
case 110:
|
|
return gdb_sys_lookup_dcookie;
|
|
/* Here come the differences. */
|
|
case 222:
|
|
return gdb_sys_readahead;
|
|
case 223:
|
|
if (abi == ABI_LINUX_S390)
|
|
return gdb_sys_sendfile64;
|
|
return gdb_sys_no_syscall;
|
|
/* 224-235 handled below */
|
|
case 236:
|
|
return gdb_sys_gettid;
|
|
case 237:
|
|
return gdb_sys_tkill;
|
|
case 238:
|
|
return gdb_sys_futex;
|
|
case 239:
|
|
return gdb_sys_sched_setaffinity;
|
|
case 240:
|
|
return gdb_sys_sched_getaffinity;
|
|
case 241:
|
|
return gdb_sys_tgkill;
|
|
/* 242 reserved */
|
|
case 243:
|
|
return gdb_sys_io_setup;
|
|
case 244:
|
|
return gdb_sys_io_destroy;
|
|
case 245:
|
|
return gdb_sys_io_getevents;
|
|
case 246:
|
|
return gdb_sys_io_submit;
|
|
case 247:
|
|
return gdb_sys_io_cancel;
|
|
case 248:
|
|
return gdb_sys_exit_group;
|
|
case 249:
|
|
return gdb_sys_epoll_create;
|
|
case 250:
|
|
return gdb_sys_epoll_ctl;
|
|
case 251:
|
|
return gdb_sys_epoll_wait;
|
|
case 252:
|
|
return gdb_sys_set_tid_address;
|
|
case 253:
|
|
return gdb_sys_fadvise64;
|
|
/* 254-262 handled below */
|
|
/* 263 reserved */
|
|
case 264:
|
|
if (abi == ABI_LINUX_S390)
|
|
return gdb_sys_fadvise64_64;
|
|
return gdb_sys_no_syscall;
|
|
case 265:
|
|
return gdb_sys_statfs64;
|
|
case 266:
|
|
return gdb_sys_fstatfs64;
|
|
case 267:
|
|
return gdb_sys_remap_file_pages;
|
|
/* 268-270 reserved */
|
|
/* 271-277 handled below */
|
|
case 278:
|
|
return gdb_sys_add_key;
|
|
case 279:
|
|
return gdb_sys_request_key;
|
|
case 280:
|
|
return gdb_sys_keyctl;
|
|
case 281:
|
|
return gdb_sys_waitid;
|
|
/* 282-312 handled below */
|
|
case 293:
|
|
if (abi == ABI_LINUX_S390)
|
|
return gdb_sys_fstatat64;
|
|
return gdb_sys_newfstatat;
|
|
/* 313+ not yet supported */
|
|
default:
|
|
{
|
|
int ret;
|
|
|
|
/* Most "old" syscalls copied from i386. */
|
|
if (syscall <= 221)
|
|
ret = syscall;
|
|
/* xattr syscalls. */
|
|
else if (syscall >= 224 && syscall <= 235)
|
|
ret = syscall + 2;
|
|
/* timer syscalls. */
|
|
else if (syscall >= 254 && syscall <= 262)
|
|
ret = syscall + 5;
|
|
/* mq_* and kexec_load */
|
|
else if (syscall >= 271 && syscall <= 277)
|
|
ret = syscall + 6;
|
|
/* ioprio_set .. epoll_pwait */
|
|
else if (syscall >= 282 && syscall <= 312)
|
|
ret = syscall + 7;
|
|
else
|
|
ret = gdb_sys_no_syscall;
|
|
|
|
return (enum gdb_syscall) ret;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Record a system call. Returns 0 on success, -1 otherwise.
|
|
Helper function for s390_process_record. */
|
|
|
|
static int
|
|
s390_linux_syscall_record (struct regcache *regcache, LONGEST syscall_native)
|
|
{
|
|
struct gdbarch *gdbarch = regcache->arch ();
|
|
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
|
|
int ret;
|
|
enum gdb_syscall syscall_gdb;
|
|
|
|
/* On s390, syscall number can be passed either as immediate field of svc
|
|
instruction, or in %r1 (with svc 0). */
|
|
if (syscall_native == 0)
|
|
regcache_raw_read_signed (regcache, S390_R1_REGNUM, &syscall_native);
|
|
|
|
syscall_gdb = s390_canonicalize_syscall (syscall_native, tdep->abi);
|
|
|
|
if (syscall_gdb < 0)
|
|
{
|
|
printf_unfiltered (_("Process record and replay target doesn't "
|
|
"support syscall number %s\n"),
|
|
plongest (syscall_native));
|
|
return -1;
|
|
}
|
|
|
|
if (syscall_gdb == gdb_sys_sigreturn
|
|
|| syscall_gdb == gdb_sys_rt_sigreturn)
|
|
{
|
|
if (s390_all_but_pc_registers_record (regcache))
|
|
return -1;
|
|
return 0;
|
|
}
|
|
|
|
if (tdep->abi == ABI_LINUX_ZSERIES)
|
|
ret = record_linux_system_call (syscall_gdb, regcache,
|
|
&s390x_linux_record_tdep);
|
|
else
|
|
ret = record_linux_system_call (syscall_gdb, regcache,
|
|
&s390_linux_record_tdep);
|
|
|
|
if (ret)
|
|
return ret;
|
|
|
|
/* Record the return value of the system call. */
|
|
if (record_full_arch_list_add_reg (regcache, S390_R2_REGNUM))
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Implement process_record_signal gdbarch method. */
|
|
|
|
static int
|
|
s390_linux_record_signal (struct gdbarch *gdbarch, struct regcache *regcache,
|
|
enum gdb_signal signal)
|
|
{
|
|
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
|
|
/* There are two kinds of signal frames on s390. rt_sigframe is always
|
|
the larger one, so don't even bother with sigframe. */
|
|
const int sizeof_rt_sigframe = (tdep->abi == ABI_LINUX_ZSERIES ?
|
|
160 + 8 + 128 + 1024 : 96 + 8 + 128 + 1000);
|
|
ULONGEST sp;
|
|
int i;
|
|
|
|
for (i = 0; i < 16; i++)
|
|
{
|
|
if (record_full_arch_list_add_reg (regcache, S390_R0_REGNUM + i))
|
|
return -1;
|
|
if (tdep->gpr_full_regnum != -1)
|
|
if (record_full_arch_list_add_reg (regcache, S390_R0_UPPER_REGNUM + i))
|
|
return -1;
|
|
}
|
|
if (record_full_arch_list_add_reg (regcache, S390_PSWA_REGNUM))
|
|
return -1;
|
|
if (record_full_arch_list_add_reg (regcache, S390_PSWM_REGNUM))
|
|
return -1;
|
|
|
|
/* Record the change in the stack.
|
|
frame-size = sizeof (struct rt_sigframe) + SIGNAL_FRAMESIZE */
|
|
regcache_raw_read_unsigned (regcache, S390_SP_REGNUM, &sp);
|
|
sp -= sizeof_rt_sigframe;
|
|
|
|
if (record_full_arch_list_add_mem (sp, sizeof_rt_sigframe))
|
|
return -1;
|
|
|
|
if (record_full_arch_list_add_end ())
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Initialize linux_record_tdep if not initialized yet. */
|
|
|
|
static void
|
|
s390_init_linux_record_tdep (struct linux_record_tdep *record_tdep,
|
|
enum s390_abi_kind abi)
|
|
{
|
|
/* These values are the size of the type that will be used in a system
|
|
call. They are obtained from Linux Kernel source. */
|
|
|
|
if (abi == ABI_LINUX_ZSERIES)
|
|
{
|
|
record_tdep->size_pointer = 8;
|
|
/* no _old_kernel_stat */
|
|
record_tdep->size_tms = 32;
|
|
record_tdep->size_loff_t = 8;
|
|
record_tdep->size_flock = 32;
|
|
record_tdep->size_ustat = 32;
|
|
record_tdep->size_old_sigaction = 32;
|
|
record_tdep->size_old_sigset_t = 8;
|
|
record_tdep->size_rlimit = 16;
|
|
record_tdep->size_rusage = 144;
|
|
record_tdep->size_timeval = 16;
|
|
record_tdep->size_timezone = 8;
|
|
/* old_[ug]id_t never used */
|
|
record_tdep->size_fd_set = 128;
|
|
record_tdep->size_old_dirent = 280;
|
|
record_tdep->size_statfs = 88;
|
|
record_tdep->size_statfs64 = 88;
|
|
record_tdep->size_sockaddr = 16;
|
|
record_tdep->size_int = 4;
|
|
record_tdep->size_long = 8;
|
|
record_tdep->size_ulong = 8;
|
|
record_tdep->size_msghdr = 56;
|
|
record_tdep->size_itimerval = 32;
|
|
record_tdep->size_stat = 144;
|
|
/* old_utsname unused */
|
|
record_tdep->size_sysinfo = 112;
|
|
record_tdep->size_msqid_ds = 120;
|
|
record_tdep->size_shmid_ds = 112;
|
|
record_tdep->size_new_utsname = 390;
|
|
record_tdep->size_timex = 208;
|
|
record_tdep->size_mem_dqinfo = 24;
|
|
record_tdep->size_if_dqblk = 72;
|
|
record_tdep->size_fs_quota_stat = 80;
|
|
record_tdep->size_timespec = 16;
|
|
record_tdep->size_pollfd = 8;
|
|
record_tdep->size_NFS_FHSIZE = 32;
|
|
record_tdep->size_knfsd_fh = 132;
|
|
record_tdep->size_TASK_COMM_LEN = 16;
|
|
record_tdep->size_sigaction = 32;
|
|
record_tdep->size_sigset_t = 8;
|
|
record_tdep->size_siginfo_t = 128;
|
|
record_tdep->size_cap_user_data_t = 12;
|
|
record_tdep->size_stack_t = 24;
|
|
record_tdep->size_off_t = 8;
|
|
/* stat64 unused */
|
|
record_tdep->size_gid_t = 4;
|
|
record_tdep->size_uid_t = 4;
|
|
record_tdep->size_PAGE_SIZE = 0x1000; /* 4KB */
|
|
record_tdep->size_flock64 = 32;
|
|
record_tdep->size_io_event = 32;
|
|
record_tdep->size_iocb = 64;
|
|
record_tdep->size_epoll_event = 16;
|
|
record_tdep->size_itimerspec = 32;
|
|
record_tdep->size_mq_attr = 64;
|
|
record_tdep->size_termios = 36;
|
|
record_tdep->size_termios2 = 44;
|
|
record_tdep->size_pid_t = 4;
|
|
record_tdep->size_winsize = 8;
|
|
record_tdep->size_serial_struct = 72;
|
|
record_tdep->size_serial_icounter_struct = 80;
|
|
record_tdep->size_size_t = 8;
|
|
record_tdep->size_iovec = 16;
|
|
record_tdep->size_time_t = 8;
|
|
}
|
|
else if (abi == ABI_LINUX_S390)
|
|
{
|
|
record_tdep->size_pointer = 4;
|
|
record_tdep->size__old_kernel_stat = 32;
|
|
record_tdep->size_tms = 16;
|
|
record_tdep->size_loff_t = 8;
|
|
record_tdep->size_flock = 16;
|
|
record_tdep->size_ustat = 20;
|
|
record_tdep->size_old_sigaction = 16;
|
|
record_tdep->size_old_sigset_t = 4;
|
|
record_tdep->size_rlimit = 8;
|
|
record_tdep->size_rusage = 72;
|
|
record_tdep->size_timeval = 8;
|
|
record_tdep->size_timezone = 8;
|
|
record_tdep->size_old_gid_t = 2;
|
|
record_tdep->size_old_uid_t = 2;
|
|
record_tdep->size_fd_set = 128;
|
|
record_tdep->size_old_dirent = 268;
|
|
record_tdep->size_statfs = 64;
|
|
record_tdep->size_statfs64 = 88;
|
|
record_tdep->size_sockaddr = 16;
|
|
record_tdep->size_int = 4;
|
|
record_tdep->size_long = 4;
|
|
record_tdep->size_ulong = 4;
|
|
record_tdep->size_msghdr = 28;
|
|
record_tdep->size_itimerval = 16;
|
|
record_tdep->size_stat = 64;
|
|
/* old_utsname unused */
|
|
record_tdep->size_sysinfo = 64;
|
|
record_tdep->size_msqid_ds = 88;
|
|
record_tdep->size_shmid_ds = 84;
|
|
record_tdep->size_new_utsname = 390;
|
|
record_tdep->size_timex = 128;
|
|
record_tdep->size_mem_dqinfo = 24;
|
|
record_tdep->size_if_dqblk = 72;
|
|
record_tdep->size_fs_quota_stat = 80;
|
|
record_tdep->size_timespec = 8;
|
|
record_tdep->size_pollfd = 8;
|
|
record_tdep->size_NFS_FHSIZE = 32;
|
|
record_tdep->size_knfsd_fh = 132;
|
|
record_tdep->size_TASK_COMM_LEN = 16;
|
|
record_tdep->size_sigaction = 20;
|
|
record_tdep->size_sigset_t = 8;
|
|
record_tdep->size_siginfo_t = 128;
|
|
record_tdep->size_cap_user_data_t = 12;
|
|
record_tdep->size_stack_t = 12;
|
|
record_tdep->size_off_t = 4;
|
|
record_tdep->size_stat64 = 104;
|
|
record_tdep->size_gid_t = 4;
|
|
record_tdep->size_uid_t = 4;
|
|
record_tdep->size_PAGE_SIZE = 0x1000; /* 4KB */
|
|
record_tdep->size_flock64 = 32;
|
|
record_tdep->size_io_event = 32;
|
|
record_tdep->size_iocb = 64;
|
|
record_tdep->size_epoll_event = 16;
|
|
record_tdep->size_itimerspec = 16;
|
|
record_tdep->size_mq_attr = 32;
|
|
record_tdep->size_termios = 36;
|
|
record_tdep->size_termios2 = 44;
|
|
record_tdep->size_pid_t = 4;
|
|
record_tdep->size_winsize = 8;
|
|
record_tdep->size_serial_struct = 60;
|
|
record_tdep->size_serial_icounter_struct = 80;
|
|
record_tdep->size_size_t = 4;
|
|
record_tdep->size_iovec = 8;
|
|
record_tdep->size_time_t = 4;
|
|
}
|
|
|
|
/* These values are the second argument of system call "sys_fcntl"
|
|
and "sys_fcntl64". They are obtained from Linux Kernel source. */
|
|
record_tdep->fcntl_F_GETLK = 5;
|
|
record_tdep->fcntl_F_GETLK64 = 12;
|
|
record_tdep->fcntl_F_SETLK64 = 13;
|
|
record_tdep->fcntl_F_SETLKW64 = 14;
|
|
|
|
record_tdep->arg1 = S390_R2_REGNUM;
|
|
record_tdep->arg2 = S390_R3_REGNUM;
|
|
record_tdep->arg3 = S390_R4_REGNUM;
|
|
record_tdep->arg4 = S390_R5_REGNUM;
|
|
record_tdep->arg5 = S390_R6_REGNUM;
|
|
|
|
/* These values are the second argument of system call "sys_ioctl".
|
|
They are obtained from Linux Kernel source.
|
|
See arch/s390/include/uapi/asm/ioctls.h. */
|
|
|
|
record_tdep->ioctl_TCGETS = 0x5401;
|
|
record_tdep->ioctl_TCSETS = 0x5402;
|
|
record_tdep->ioctl_TCSETSW = 0x5403;
|
|
record_tdep->ioctl_TCSETSF = 0x5404;
|
|
record_tdep->ioctl_TCGETA = 0x5405;
|
|
record_tdep->ioctl_TCSETA = 0x5406;
|
|
record_tdep->ioctl_TCSETAW = 0x5407;
|
|
record_tdep->ioctl_TCSETAF = 0x5408;
|
|
record_tdep->ioctl_TCSBRK = 0x5409;
|
|
record_tdep->ioctl_TCXONC = 0x540a;
|
|
record_tdep->ioctl_TCFLSH = 0x540b;
|
|
record_tdep->ioctl_TIOCEXCL = 0x540c;
|
|
record_tdep->ioctl_TIOCNXCL = 0x540d;
|
|
record_tdep->ioctl_TIOCSCTTY = 0x540e;
|
|
record_tdep->ioctl_TIOCGPGRP = 0x540f;
|
|
record_tdep->ioctl_TIOCSPGRP = 0x5410;
|
|
record_tdep->ioctl_TIOCOUTQ = 0x5411;
|
|
record_tdep->ioctl_TIOCSTI = 0x5412;
|
|
record_tdep->ioctl_TIOCGWINSZ = 0x5413;
|
|
record_tdep->ioctl_TIOCSWINSZ = 0x5414;
|
|
record_tdep->ioctl_TIOCMGET = 0x5415;
|
|
record_tdep->ioctl_TIOCMBIS = 0x5416;
|
|
record_tdep->ioctl_TIOCMBIC = 0x5417;
|
|
record_tdep->ioctl_TIOCMSET = 0x5418;
|
|
record_tdep->ioctl_TIOCGSOFTCAR = 0x5419;
|
|
record_tdep->ioctl_TIOCSSOFTCAR = 0x541a;
|
|
record_tdep->ioctl_FIONREAD = 0x541b;
|
|
record_tdep->ioctl_TIOCINQ = 0x541b; /* alias */
|
|
record_tdep->ioctl_TIOCLINUX = 0x541c;
|
|
record_tdep->ioctl_TIOCCONS = 0x541d;
|
|
record_tdep->ioctl_TIOCGSERIAL = 0x541e;
|
|
record_tdep->ioctl_TIOCSSERIAL = 0x541f;
|
|
record_tdep->ioctl_TIOCPKT = 0x5420;
|
|
record_tdep->ioctl_FIONBIO = 0x5421;
|
|
record_tdep->ioctl_TIOCNOTTY = 0x5422;
|
|
record_tdep->ioctl_TIOCSETD = 0x5423;
|
|
record_tdep->ioctl_TIOCGETD = 0x5424;
|
|
record_tdep->ioctl_TCSBRKP = 0x5425;
|
|
record_tdep->ioctl_TIOCSBRK = 0x5427;
|
|
record_tdep->ioctl_TIOCCBRK = 0x5428;
|
|
record_tdep->ioctl_TIOCGSID = 0x5429;
|
|
record_tdep->ioctl_TCGETS2 = 0x802c542a;
|
|
record_tdep->ioctl_TCSETS2 = 0x402c542b;
|
|
record_tdep->ioctl_TCSETSW2 = 0x402c542c;
|
|
record_tdep->ioctl_TCSETSF2 = 0x402c542d;
|
|
record_tdep->ioctl_TIOCGPTN = 0x80045430;
|
|
record_tdep->ioctl_TIOCSPTLCK = 0x40045431;
|
|
record_tdep->ioctl_FIONCLEX = 0x5450;
|
|
record_tdep->ioctl_FIOCLEX = 0x5451;
|
|
record_tdep->ioctl_FIOASYNC = 0x5452;
|
|
record_tdep->ioctl_TIOCSERCONFIG = 0x5453;
|
|
record_tdep->ioctl_TIOCSERGWILD = 0x5454;
|
|
record_tdep->ioctl_TIOCSERSWILD = 0x5455;
|
|
record_tdep->ioctl_TIOCGLCKTRMIOS = 0x5456;
|
|
record_tdep->ioctl_TIOCSLCKTRMIOS = 0x5457;
|
|
record_tdep->ioctl_TIOCSERGSTRUCT = 0x5458;
|
|
record_tdep->ioctl_TIOCSERGETLSR = 0x5459;
|
|
record_tdep->ioctl_TIOCSERGETMULTI = 0x545a;
|
|
record_tdep->ioctl_TIOCSERSETMULTI = 0x545b;
|
|
record_tdep->ioctl_TIOCMIWAIT = 0x545c;
|
|
record_tdep->ioctl_TIOCGICOUNT = 0x545d;
|
|
record_tdep->ioctl_FIOQSIZE = 0x545e;
|
|
}
|
|
|
|
/* Initialize OSABI common for GNU/Linux on 31- and 64-bit systems. */
|
|
|
|
static void
|
|
s390_linux_init_abi_any (struct gdbarch_info info, struct gdbarch *gdbarch)
|
|
{
|
|
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
|
|
|
|
tdep->s390_syscall_record = s390_linux_syscall_record;
|
|
|
|
linux_init_abi (info, gdbarch);
|
|
|
|
/* Register handling. */
|
|
set_gdbarch_core_read_description (gdbarch, s390_core_read_description);
|
|
set_gdbarch_iterate_over_regset_sections (gdbarch,
|
|
s390_iterate_over_regset_sections);
|
|
set_gdbarch_write_pc (gdbarch, s390_write_pc);
|
|
set_gdbarch_cannot_store_register (gdbarch, s390_cannot_store_register);
|
|
|
|
/* Syscall handling. */
|
|
set_gdbarch_get_syscall_number (gdbarch, s390_linux_get_syscall_number);
|
|
|
|
/* Frame handling. */
|
|
frame_unwind_append_unwinder (gdbarch, &s390_sigtramp_frame_unwind);
|
|
set_gdbarch_skip_trampoline_code (gdbarch, find_solib_trampoline_target);
|
|
|
|
/* Enable TLS support. */
|
|
set_gdbarch_fetch_tls_load_module_address (gdbarch,
|
|
svr4_fetch_objfile_link_map);
|
|
|
|
/* Support reverse debugging. */
|
|
set_gdbarch_process_record_signal (gdbarch, s390_linux_record_signal);
|
|
s390_init_linux_record_tdep (&s390_linux_record_tdep, ABI_LINUX_S390);
|
|
s390_init_linux_record_tdep (&s390x_linux_record_tdep, ABI_LINUX_ZSERIES);
|
|
}
|
|
|
|
/* Initialize OSABI for GNU/Linux on 31-bit systems. */
|
|
|
|
static void
|
|
s390_linux_init_abi_31 (struct gdbarch_info info, struct gdbarch *gdbarch)
|
|
{
|
|
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
|
|
|
|
tdep->abi = ABI_LINUX_S390;
|
|
|
|
s390_linux_init_abi_any (info, gdbarch);
|
|
|
|
set_solib_svr4_fetch_link_map_offsets (gdbarch,
|
|
svr4_ilp32_fetch_link_map_offsets);
|
|
set_xml_syscall_file_name (gdbarch, XML_SYSCALL_FILENAME_S390);
|
|
}
|
|
|
|
/* Initialize OSABI for GNU/Linux on 64-bit systems. */
|
|
|
|
static void
|
|
s390_linux_init_abi_64 (struct gdbarch_info info, struct gdbarch *gdbarch)
|
|
{
|
|
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
|
|
|
|
tdep->abi = ABI_LINUX_ZSERIES;
|
|
|
|
s390_linux_init_abi_any (info, gdbarch);
|
|
|
|
set_solib_svr4_fetch_link_map_offsets (gdbarch,
|
|
svr4_lp64_fetch_link_map_offsets);
|
|
set_xml_syscall_file_name (gdbarch, XML_SYSCALL_FILENAME_S390X);
|
|
}
|
|
|
|
void
|
|
_initialize_s390_linux_tdep (void)
|
|
{
|
|
/* Hook us into the OSABI mechanism. */
|
|
gdbarch_register_osabi (bfd_arch_s390, bfd_mach_s390_31, GDB_OSABI_LINUX,
|
|
s390_linux_init_abi_31);
|
|
gdbarch_register_osabi (bfd_arch_s390, bfd_mach_s390_64, GDB_OSABI_LINUX,
|
|
s390_linux_init_abi_64);
|
|
|
|
/* Initialize the GNU/Linux target descriptions. */
|
|
initialize_tdesc_s390_linux32v1 ();
|
|
initialize_tdesc_s390_linux32v2 ();
|
|
initialize_tdesc_s390_linux64 ();
|
|
initialize_tdesc_s390_linux64v1 ();
|
|
initialize_tdesc_s390_linux64v2 ();
|
|
initialize_tdesc_s390_te_linux64 ();
|
|
initialize_tdesc_s390_vx_linux64 ();
|
|
initialize_tdesc_s390_tevx_linux64 ();
|
|
initialize_tdesc_s390_gs_linux64 ();
|
|
initialize_tdesc_s390x_linux64v1 ();
|
|
initialize_tdesc_s390x_linux64v2 ();
|
|
initialize_tdesc_s390x_te_linux64 ();
|
|
initialize_tdesc_s390x_vx_linux64 ();
|
|
initialize_tdesc_s390x_tevx_linux64 ();
|
|
initialize_tdesc_s390x_gs_linux64 ();
|
|
}
|