X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gdb%2Farm-linux-tdep.c;h=e8f8c4e6cf0f04854ff0cd4d7954d527d754e59a;hb=7785df4880f3828db8cf1715038127e6b858a670;hp=a820e747b5b4292a92386c2a5dd40d6a6106c0ec;hpb=72aded8673d6cb2d0e33696e010a778e9bbfa817;p=deliverable%2Fbinutils-gdb.git diff --git a/gdb/arm-linux-tdep.c b/gdb/arm-linux-tdep.c index a820e747b5..e8f8c4e6cf 100644 --- a/gdb/arm-linux-tdep.c +++ b/gdb/arm-linux-tdep.c @@ -1,6 +1,6 @@ /* GNU/Linux on ARM target support. - Copyright (C) 1999-2015 Free Software Foundation, Inc. + Copyright (C) 1999-2018 Free Software Foundation, Inc. This file is part of GDB. @@ -21,11 +21,9 @@ #include "target.h" #include "value.h" #include "gdbtypes.h" -#include "floatformat.h" #include "gdbcore.h" #include "frame.h" #include "regcache.h" -#include "doublest.h" #include "solib-svr4.h" #include "osabi.h" #include "regset.h" @@ -35,6 +33,9 @@ #include "auxv.h" #include "xml-syscall.h" +#include "arch/arm.h" +#include "arch/arm-get-next-pcs.h" +#include "arch/arm-linux.h" #include "arm-tdep.h" #include "arm-linux-tdep.h" #include "linux-tdep.h" @@ -257,6 +258,23 @@ static const gdb_byte arm_linux_thumb2_le_breakpoint[] = { 0xf0, 0xf7, 0x00, 0xa #define ARM_LDR_PC_SP_12 0xe49df00c #define ARM_LDR_PC_SP_4 0xe49df004 +/* Syscall number for sigreturn. */ +#define ARM_SIGRETURN 119 +/* Syscall number for rt_sigreturn. */ +#define ARM_RT_SIGRETURN 173 + +static CORE_ADDR + arm_linux_get_next_pcs_syscall_next_pc (struct arm_get_next_pcs *self); + +/* Operation function pointers for get_next_pcs. */ +static struct arm_get_next_pcs_ops arm_linux_get_next_pcs_ops = { + arm_get_next_pcs_read_memory_unsigned_integer, + arm_linux_get_next_pcs_syscall_next_pc, + arm_get_next_pcs_addr_bits_remove, + arm_get_next_pcs_is_thumb, + arm_linux_get_next_pcs_fixup, +}; + static void arm_linux_sigtramp_cache (struct frame_info *this_frame, struct trad_frame_cache *this_cache, @@ -278,51 +296,7 @@ arm_linux_sigtramp_cache (struct frame_info *this_frame, trad_frame_set_id (this_cache, frame_id_build (sp, func)); } -/* There are a couple of different possible stack layouts that - we need to support. - - Before version 2.6.18, the kernel used completely independent - layouts for non-RT and RT signals. For non-RT signals the stack - began directly with a struct sigcontext. For RT signals the stack - began with two redundant pointers (to the siginfo and ucontext), - and then the siginfo and ucontext. - - As of version 2.6.18, the non-RT signal frame layout starts with - a ucontext and the RT signal frame starts with a siginfo and then - a ucontext. Also, the ucontext now has a designated save area - for coprocessor registers. - - For RT signals, it's easy to tell the difference: we look for - pinfo, the pointer to the siginfo. If it has the expected - value, we have an old layout. If it doesn't, we have the new - layout. - - For non-RT signals, it's a bit harder. We need something in one - layout or the other with a recognizable offset and value. We can't - use the return trampoline, because ARM usually uses SA_RESTORER, - in which case the stack return trampoline is not filled in. - We can't use the saved stack pointer, because sigaltstack might - be in use. So for now we guess the new layout... */ - -/* There are three words (trap_no, error_code, oldmask) in - struct sigcontext before r0. */ -#define ARM_SIGCONTEXT_R0 0xc - -/* There are five words (uc_flags, uc_link, and three for uc_stack) - in the ucontext_t before the sigcontext. */ -#define ARM_UCONTEXT_SIGCONTEXT 0x14 - -/* There are three elements in an rt_sigframe before the ucontext: - pinfo, puc, and info. The first two are pointers and the third - is a struct siginfo, with size 128 bytes. We could follow puc - to the ucontext, but it's simpler to skip the whole thing. */ -#define ARM_OLD_RT_SIGFRAME_SIGINFO 0x8 -#define ARM_OLD_RT_SIGFRAME_UCONTEXT 0x88 - -#define ARM_NEW_RT_SIGFRAME_UCONTEXT 0x80 - -#define ARM_NEW_SIGFRAME_MAGIC 0x5ac3c35a - +/* See arm-linux.h for stack layout details. */ static void arm_linux_sigreturn_init (const struct tramp_frame *self, struct frame_info *this_frame, @@ -504,7 +478,7 @@ arm_linux_supply_gregset (const struct regset *regset, struct regcache *regcache, int regnum, const void *gregs_buf, size_t len) { - struct gdbarch *gdbarch = get_regcache_arch (regcache); + struct gdbarch *gdbarch = regcache->arch (); enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); const gdb_byte *gregs = (const gdb_byte *) gregs_buf; int regno; @@ -805,6 +779,42 @@ arm_linux_sigreturn_return_addr (struct frame_info *frame, return 0; } +/* Find the value of the next PC after a sigreturn or rt_sigreturn syscall + based on current processor state. In addition, set IS_THUMB depending + on whether we will return to ARM or Thumb code. */ + +static CORE_ADDR +arm_linux_sigreturn_next_pc (struct regcache *regcache, + unsigned long svc_number, int *is_thumb) +{ + ULONGEST sp; + unsigned long sp_data; + CORE_ADDR next_pc = 0; + struct gdbarch *gdbarch = regcache->arch (); + enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); + int pc_offset = 0; + int is_sigreturn = 0; + CORE_ADDR cpsr; + + gdb_assert (svc_number == ARM_SIGRETURN + || svc_number == ARM_RT_SIGRETURN); + + is_sigreturn = (svc_number == ARM_SIGRETURN); + regcache_cooked_read_unsigned (regcache, ARM_SP_REGNUM, &sp); + sp_data = read_memory_unsigned_integer (sp, 4, byte_order); + + pc_offset = arm_linux_sigreturn_next_pc_offset (sp, sp_data, svc_number, + is_sigreturn); + + next_pc = read_memory_unsigned_integer (sp + pc_offset, 4, byte_order); + + /* Set IS_THUMB according the CPSR saved on the stack. */ + cpsr = read_memory_unsigned_integer (sp + pc_offset + 4, 4, byte_order); + *is_thumb = ((cpsr & arm_psr_thumb_bit (gdbarch)) != 0); + + return next_pc; +} + /* At a ptrace syscall-stop, return the syscall number. This either comes from the SWI instruction (OABI) or from r7 (EABI). @@ -815,7 +825,6 @@ arm_linux_get_syscall_number (struct gdbarch *gdbarch, ptid_t ptid) { struct regcache *regs = get_thread_regcache (ptid); - struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); ULONGEST pc; ULONGEST cpsr; @@ -858,25 +867,22 @@ arm_linux_get_syscall_number (struct gdbarch *gdbarch, return svc_number; } -/* When FRAME is at a syscall instruction, return the PC of the next - instruction to be executed. */ - static CORE_ADDR -arm_linux_syscall_next_pc (struct frame_info *frame) +arm_linux_get_next_pcs_syscall_next_pc (struct arm_get_next_pcs *self) { - CORE_ADDR pc = get_frame_pc (frame); - CORE_ADDR return_addr = 0; - int is_thumb = arm_frame_is_thumb (frame); + CORE_ADDR next_pc = 0; + CORE_ADDR pc = regcache_read_pc (self->regcache); + int is_thumb = arm_is_thumb (self->regcache); ULONGEST svc_number = 0; if (is_thumb) { - svc_number = get_frame_register_unsigned (frame, 7); - return_addr = pc + 2; + svc_number = regcache_raw_get_unsigned (self->regcache, 7); + next_pc = pc + 2; } else { - struct gdbarch *gdbarch = get_frame_arch (frame); + struct gdbarch *gdbarch = self->regcache->arch (); enum bfd_endian byte_order_for_code = gdbarch_byte_order_for_code (gdbarch); unsigned long this_instr = @@ -889,52 +895,54 @@ arm_linux_syscall_next_pc (struct frame_info *frame) } else /* EABI. */ { - svc_number = get_frame_register_unsigned (frame, 7); + svc_number = regcache_raw_get_unsigned (self->regcache, 7); } - return_addr = pc + 4; + next_pc = pc + 4; } - arm_linux_sigreturn_return_addr (frame, svc_number, &return_addr, &is_thumb); + if (svc_number == ARM_SIGRETURN || svc_number == ARM_RT_SIGRETURN) + { + /* SIGRETURN or RT_SIGRETURN may affect the arm thumb mode, so + update IS_THUMB. */ + next_pc = arm_linux_sigreturn_next_pc (self->regcache, svc_number, + &is_thumb); + } /* Addresses for calling Thumb functions have the bit 0 set. */ if (is_thumb) - return_addr |= 1; + next_pc = MAKE_THUMB_ADDR (next_pc); - return return_addr; + return next_pc; } /* Insert a single step breakpoint at the next executed instruction. */ -static int -arm_linux_software_single_step (struct frame_info *frame) +static std::vector +arm_linux_software_single_step (struct regcache *regcache) { - struct gdbarch *gdbarch = get_frame_arch (frame); - struct address_space *aspace = get_frame_address_space (frame); - CORE_ADDR next_pc; - - if (arm_deal_with_atomic_sequence (frame)) - return 1; + struct gdbarch *gdbarch = regcache->arch (); + struct arm_get_next_pcs next_pcs_ctx; /* If the target does have hardware single step, GDB doesn't have to bother software single step. */ if (target_can_do_single_step () == 1) - return 0; + return {}; - next_pc = arm_get_next_pc (frame, get_frame_pc (frame)); + arm_get_next_pcs_ctor (&next_pcs_ctx, + &arm_linux_get_next_pcs_ops, + gdbarch_byte_order (gdbarch), + gdbarch_byte_order_for_code (gdbarch), + 1, + regcache); - /* The Linux kernel offers some user-mode helpers in a high page. We can - not read this page (as of 2.6.23), and even if we could then we couldn't - set breakpoints in it, and even if we could then the atomic operations - would fail when interrupted. They are all called as functions and return - to the address in LR, so step to there instead. */ - if (next_pc > 0xffff0000) - next_pc = get_frame_register_unsigned (frame, ARM_LR_REGNUM); + std::vector next_pcs = arm_get_next_pcs (&next_pcs_ctx); - arm_insert_single_step_breakpoint (gdbarch, aspace, next_pc); + for (CORE_ADDR &pc_ref : next_pcs) + pc_ref = gdbarch_addr_bits_remove (gdbarch, pc_ref); - return 1; + return next_pcs; } /* Support for displaced stepping of Linux SVC instructions. */ @@ -942,7 +950,7 @@ arm_linux_software_single_step (struct frame_info *frame) static void arm_linux_cleanup_svc (struct gdbarch *gdbarch, struct regcache *regs, - struct displaced_step_closure *dsc) + arm_displaced_step_closure *dsc) { ULONGEST apparent_pc; int within_scratch; @@ -970,7 +978,7 @@ arm_linux_cleanup_svc (struct gdbarch *gdbarch, static int arm_linux_copy_svc (struct gdbarch *gdbarch, struct regcache *regs, - struct displaced_step_closure *dsc) + arm_displaced_step_closure *dsc) { CORE_ADDR return_to = 0; @@ -1012,7 +1020,7 @@ arm_linux_copy_svc (struct gdbarch *gdbarch, struct regcache *regs, { inferior_thread ()->control.step_resume_breakpoint = set_momentary_breakpoint (gdbarch, sal, get_frame_id (frame), - bp_step_resume); + bp_step_resume).release (); /* set_momentary_breakpoint invalidates FRAME. */ frame = NULL; @@ -1061,7 +1069,7 @@ arm_linux_copy_svc (struct gdbarch *gdbarch, struct regcache *regs, static void cleanup_kernel_helper_return (struct gdbarch *gdbarch, struct regcache *regs, - struct displaced_step_closure *dsc) + arm_displaced_step_closure *dsc) { displaced_write_reg (regs, dsc, ARM_LR_REGNUM, dsc->tmp[0], CANNOT_WRITE_PC); displaced_write_reg (regs, dsc, ARM_PC_REGNUM, dsc->tmp[0], BRANCH_WRITE_PC); @@ -1070,7 +1078,7 @@ cleanup_kernel_helper_return (struct gdbarch *gdbarch, static void arm_catch_kernel_helper_return (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs, - struct displaced_step_closure *dsc) + arm_displaced_step_closure *dsc) { enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); @@ -1097,15 +1105,14 @@ arm_catch_kernel_helper_return (struct gdbarch *gdbarch, CORE_ADDR from, /* Linux-specific displaced step instruction copying function. Detects when the program has stepped into a Linux kernel helper routine (which must be - handled as a special case), falling back to arm_displaced_step_copy_insn() - if it hasn't. */ + handled as a special case). */ static struct displaced_step_closure * arm_linux_displaced_step_copy_insn (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs) { - struct displaced_step_closure *dsc = XNEW (struct displaced_step_closure); + arm_displaced_step_closure *dsc = new arm_displaced_step_closure; /* Detect when we enter an (inaccessible by GDB) Linux kernel helper, and stop at the return location. */ @@ -1202,7 +1209,7 @@ arm_stap_parse_special_token (struct gdbarch *gdbarch, regname, p->saved_arg); ++tmp; - tmp = skip_spaces_const (tmp); + tmp = skip_spaces (tmp); if (*tmp == '#' || *tmp == '$') ++tmp; @@ -1262,16 +1269,371 @@ struct linux_record_tdep arm_linux_record_tdep; static enum gdb_syscall arm_canonicalize_syscall (int syscall) { - enum { sys_process_vm_writev = 377 }; - - if (syscall <= gdb_sys_sched_getaffinity) - return (enum gdb_syscall) syscall; - else if (syscall >= 243 && syscall <= 247) - return (enum gdb_syscall) (syscall + 2); - else if (syscall >= 248 && syscall <= 253) - return (enum gdb_syscall) (syscall + 4); - - return gdb_sys_no_syscall; + switch (syscall) + { + case 0: return gdb_sys_restart_syscall; + case 1: return gdb_sys_exit; + case 2: return gdb_sys_fork; + case 3: return gdb_sys_read; + case 4: return gdb_sys_write; + case 5: return gdb_sys_open; + case 6: return gdb_sys_close; + case 8: return gdb_sys_creat; + case 9: return gdb_sys_link; + case 10: return gdb_sys_unlink; + case 11: return gdb_sys_execve; + case 12: return gdb_sys_chdir; + case 13: return gdb_sys_time; + case 14: return gdb_sys_mknod; + case 15: return gdb_sys_chmod; + case 16: return gdb_sys_lchown16; + case 19: return gdb_sys_lseek; + case 20: return gdb_sys_getpid; + case 21: return gdb_sys_mount; + case 22: return gdb_sys_oldumount; + case 23: return gdb_sys_setuid16; + case 24: return gdb_sys_getuid16; + case 25: return gdb_sys_stime; + case 26: return gdb_sys_ptrace; + case 27: return gdb_sys_alarm; + case 29: return gdb_sys_pause; + case 30: return gdb_sys_utime; + case 33: return gdb_sys_access; + case 34: return gdb_sys_nice; + case 36: return gdb_sys_sync; + case 37: return gdb_sys_kill; + case 38: return gdb_sys_rename; + case 39: return gdb_sys_mkdir; + case 40: return gdb_sys_rmdir; + case 41: return gdb_sys_dup; + case 42: return gdb_sys_pipe; + case 43: return gdb_sys_times; + case 45: return gdb_sys_brk; + case 46: return gdb_sys_setgid16; + case 47: return gdb_sys_getgid16; + case 49: return gdb_sys_geteuid16; + case 50: return gdb_sys_getegid16; + case 51: return gdb_sys_acct; + case 52: return gdb_sys_umount; + case 54: return gdb_sys_ioctl; + case 55: return gdb_sys_fcntl; + case 57: return gdb_sys_setpgid; + case 60: return gdb_sys_umask; + case 61: return gdb_sys_chroot; + case 62: return gdb_sys_ustat; + case 63: return gdb_sys_dup2; + case 64: return gdb_sys_getppid; + case 65: return gdb_sys_getpgrp; + case 66: return gdb_sys_setsid; + case 67: return gdb_sys_sigaction; + case 70: return gdb_sys_setreuid16; + case 71: return gdb_sys_setregid16; + case 72: return gdb_sys_sigsuspend; + case 73: return gdb_sys_sigpending; + case 74: return gdb_sys_sethostname; + case 75: return gdb_sys_setrlimit; + case 76: return gdb_sys_getrlimit; + case 77: return gdb_sys_getrusage; + case 78: return gdb_sys_gettimeofday; + case 79: return gdb_sys_settimeofday; + case 80: return gdb_sys_getgroups16; + case 81: return gdb_sys_setgroups16; + case 82: return gdb_sys_select; + case 83: return gdb_sys_symlink; + case 85: return gdb_sys_readlink; + case 86: return gdb_sys_uselib; + case 87: return gdb_sys_swapon; + case 88: return gdb_sys_reboot; + case 89: return gdb_old_readdir; + case 90: return gdb_old_mmap; + case 91: return gdb_sys_munmap; + case 92: return gdb_sys_truncate; + case 93: return gdb_sys_ftruncate; + case 94: return gdb_sys_fchmod; + case 95: return gdb_sys_fchown16; + case 96: return gdb_sys_getpriority; + case 97: return gdb_sys_setpriority; + case 99: return gdb_sys_statfs; + case 100: return gdb_sys_fstatfs; + case 102: return gdb_sys_socketcall; + case 103: return gdb_sys_syslog; + case 104: return gdb_sys_setitimer; + case 105: return gdb_sys_getitimer; + case 106: return gdb_sys_stat; + case 107: return gdb_sys_lstat; + case 108: return gdb_sys_fstat; + case 111: return gdb_sys_vhangup; + case 113: /* sys_syscall */ + return gdb_sys_no_syscall; + case 114: return gdb_sys_wait4; + case 115: return gdb_sys_swapoff; + case 116: return gdb_sys_sysinfo; + case 117: return gdb_sys_ipc; + case 118: return gdb_sys_fsync; + case 119: return gdb_sys_sigreturn; + case 120: return gdb_sys_clone; + case 121: return gdb_sys_setdomainname; + case 122: return gdb_sys_uname; + case 124: return gdb_sys_adjtimex; + case 125: return gdb_sys_mprotect; + case 126: return gdb_sys_sigprocmask; + case 128: return gdb_sys_init_module; + case 129: return gdb_sys_delete_module; + case 131: return gdb_sys_quotactl; + case 132: return gdb_sys_getpgid; + case 133: return gdb_sys_fchdir; + case 134: return gdb_sys_bdflush; + case 135: return gdb_sys_sysfs; + case 136: return gdb_sys_personality; + case 138: return gdb_sys_setfsuid16; + case 139: return gdb_sys_setfsgid16; + case 140: return gdb_sys_llseek; + case 141: return gdb_sys_getdents; + case 142: return gdb_sys_select; + case 143: return gdb_sys_flock; + case 144: return gdb_sys_msync; + case 145: return gdb_sys_readv; + case 146: return gdb_sys_writev; + case 147: return gdb_sys_getsid; + case 148: return gdb_sys_fdatasync; + case 149: return gdb_sys_sysctl; + case 150: return gdb_sys_mlock; + case 151: return gdb_sys_munlock; + case 152: return gdb_sys_mlockall; + case 153: return gdb_sys_munlockall; + case 154: return gdb_sys_sched_setparam; + case 155: return gdb_sys_sched_getparam; + case 156: return gdb_sys_sched_setscheduler; + case 157: return gdb_sys_sched_getscheduler; + case 158: return gdb_sys_sched_yield; + case 159: return gdb_sys_sched_get_priority_max; + case 160: return gdb_sys_sched_get_priority_min; + case 161: return gdb_sys_sched_rr_get_interval; + case 162: return gdb_sys_nanosleep; + case 163: return gdb_sys_mremap; + case 164: return gdb_sys_setresuid16; + case 165: return gdb_sys_getresuid16; + case 168: return gdb_sys_poll; + case 169: return gdb_sys_nfsservctl; + case 170: return gdb_sys_setresgid; + case 171: return gdb_sys_getresgid; + case 172: return gdb_sys_prctl; + case 173: return gdb_sys_rt_sigreturn; + case 174: return gdb_sys_rt_sigaction; + case 175: return gdb_sys_rt_sigprocmask; + case 176: return gdb_sys_rt_sigpending; + case 177: return gdb_sys_rt_sigtimedwait; + case 178: return gdb_sys_rt_sigqueueinfo; + case 179: return gdb_sys_rt_sigsuspend; + case 180: return gdb_sys_pread64; + case 181: return gdb_sys_pwrite64; + case 182: return gdb_sys_chown; + case 183: return gdb_sys_getcwd; + case 184: return gdb_sys_capget; + case 185: return gdb_sys_capset; + case 186: return gdb_sys_sigaltstack; + case 187: return gdb_sys_sendfile; + case 190: return gdb_sys_vfork; + case 191: return gdb_sys_getrlimit; + case 192: return gdb_sys_mmap2; + case 193: return gdb_sys_truncate64; + case 194: return gdb_sys_ftruncate64; + case 195: return gdb_sys_stat64; + case 196: return gdb_sys_lstat64; + case 197: return gdb_sys_fstat64; + case 198: return gdb_sys_lchown; + case 199: return gdb_sys_getuid; + case 200: return gdb_sys_getgid; + case 201: return gdb_sys_geteuid; + case 202: return gdb_sys_getegid; + case 203: return gdb_sys_setreuid; + case 204: return gdb_sys_setregid; + case 205: return gdb_sys_getgroups; + case 206: return gdb_sys_setgroups; + case 207: return gdb_sys_fchown; + case 208: return gdb_sys_setresuid; + case 209: return gdb_sys_getresuid; + case 210: return gdb_sys_setresgid; + case 211: return gdb_sys_getresgid; + case 212: return gdb_sys_chown; + case 213: return gdb_sys_setuid; + case 214: return gdb_sys_setgid; + case 215: return gdb_sys_setfsuid; + case 216: return gdb_sys_setfsgid; + case 217: return gdb_sys_getdents64; + case 218: return gdb_sys_pivot_root; + case 219: return gdb_sys_mincore; + case 220: return gdb_sys_madvise; + case 221: return gdb_sys_fcntl64; + case 224: return gdb_sys_gettid; + case 225: return gdb_sys_readahead; + case 226: return gdb_sys_setxattr; + case 227: return gdb_sys_lsetxattr; + case 228: return gdb_sys_fsetxattr; + case 229: return gdb_sys_getxattr; + case 230: return gdb_sys_lgetxattr; + case 231: return gdb_sys_fgetxattr; + case 232: return gdb_sys_listxattr; + case 233: return gdb_sys_llistxattr; + case 234: return gdb_sys_flistxattr; + case 235: return gdb_sys_removexattr; + case 236: return gdb_sys_lremovexattr; + case 237: return gdb_sys_fremovexattr; + case 238: return gdb_sys_tkill; + case 239: return gdb_sys_sendfile64; + case 240: return gdb_sys_futex; + case 241: return gdb_sys_sched_setaffinity; + case 242: return gdb_sys_sched_getaffinity; + 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_lookup_dcookie; + case 250: return gdb_sys_epoll_create; + case 251: return gdb_sys_epoll_ctl; + case 252: return gdb_sys_epoll_wait; + case 253: return gdb_sys_remap_file_pages; + case 256: return gdb_sys_set_tid_address; + case 257: return gdb_sys_timer_create; + case 258: return gdb_sys_timer_settime; + case 259: return gdb_sys_timer_gettime; + case 260: return gdb_sys_timer_getoverrun; + case 261: return gdb_sys_timer_delete; + case 262: return gdb_sys_clock_settime; + case 263: return gdb_sys_clock_gettime; + case 264: return gdb_sys_clock_getres; + case 265: return gdb_sys_clock_nanosleep; + case 266: return gdb_sys_statfs64; + case 267: return gdb_sys_fstatfs64; + case 268: return gdb_sys_tgkill; + case 269: return gdb_sys_utimes; + /* + case 270: return gdb_sys_arm_fadvise64_64; + case 271: return gdb_sys_pciconfig_iobase; + case 272: return gdb_sys_pciconfig_read; + case 273: return gdb_sys_pciconfig_write; + */ + case 274: return gdb_sys_mq_open; + case 275: return gdb_sys_mq_unlink; + case 276: return gdb_sys_mq_timedsend; + case 277: return gdb_sys_mq_timedreceive; + case 278: return gdb_sys_mq_notify; + case 279: return gdb_sys_mq_getsetattr; + case 280: return gdb_sys_waitid; + case 281: return gdb_sys_socket; + case 282: return gdb_sys_bind; + case 283: return gdb_sys_connect; + case 284: return gdb_sys_listen; + case 285: return gdb_sys_accept; + case 286: return gdb_sys_getsockname; + case 287: return gdb_sys_getpeername; + case 288: return gdb_sys_socketpair; + case 289: /* send */ return gdb_sys_no_syscall; + case 290: return gdb_sys_sendto; + case 291: return gdb_sys_recv; + case 292: return gdb_sys_recvfrom; + case 293: return gdb_sys_shutdown; + case 294: return gdb_sys_setsockopt; + case 295: return gdb_sys_getsockopt; + case 296: return gdb_sys_sendmsg; + case 297: return gdb_sys_recvmsg; + case 298: return gdb_sys_semop; + case 299: return gdb_sys_semget; + case 300: return gdb_sys_semctl; + case 301: return gdb_sys_msgsnd; + case 302: return gdb_sys_msgrcv; + case 303: return gdb_sys_msgget; + case 304: return gdb_sys_msgctl; + case 305: return gdb_sys_shmat; + case 306: return gdb_sys_shmdt; + case 307: return gdb_sys_shmget; + case 308: return gdb_sys_shmctl; + case 309: return gdb_sys_add_key; + case 310: return gdb_sys_request_key; + case 311: return gdb_sys_keyctl; + case 312: return gdb_sys_semtimedop; + case 313: /* vserver */ return gdb_sys_no_syscall; + case 314: return gdb_sys_ioprio_set; + case 315: return gdb_sys_ioprio_get; + case 316: return gdb_sys_inotify_init; + case 317: return gdb_sys_inotify_add_watch; + case 318: return gdb_sys_inotify_rm_watch; + case 319: return gdb_sys_mbind; + case 320: return gdb_sys_get_mempolicy; + case 321: return gdb_sys_set_mempolicy; + case 322: return gdb_sys_openat; + case 323: return gdb_sys_mkdirat; + case 324: return gdb_sys_mknodat; + case 325: return gdb_sys_fchownat; + case 326: return gdb_sys_futimesat; + case 327: return gdb_sys_fstatat64; + case 328: return gdb_sys_unlinkat; + case 329: return gdb_sys_renameat; + case 330: return gdb_sys_linkat; + case 331: return gdb_sys_symlinkat; + case 332: return gdb_sys_readlinkat; + case 333: return gdb_sys_fchmodat; + case 334: return gdb_sys_faccessat; + case 335: return gdb_sys_pselect6; + case 336: return gdb_sys_ppoll; + case 337: return gdb_sys_unshare; + case 338: return gdb_sys_set_robust_list; + case 339: return gdb_sys_get_robust_list; + case 340: return gdb_sys_splice; + /*case 341: return gdb_sys_arm_sync_file_range;*/ + case 342: return gdb_sys_tee; + case 343: return gdb_sys_vmsplice; + case 344: return gdb_sys_move_pages; + case 345: return gdb_sys_getcpu; + case 346: return gdb_sys_epoll_pwait; + case 347: return gdb_sys_kexec_load; + /* + case 348: return gdb_sys_utimensat; + case 349: return gdb_sys_signalfd; + case 350: return gdb_sys_timerfd_create; + case 351: return gdb_sys_eventfd; + */ + case 352: return gdb_sys_fallocate; + /* + case 353: return gdb_sys_timerfd_settime; + case 354: return gdb_sys_timerfd_gettime; + case 355: return gdb_sys_signalfd4; + */ + case 356: return gdb_sys_eventfd2; + case 357: return gdb_sys_epoll_create1; + case 358: return gdb_sys_dup3; + case 359: return gdb_sys_pipe2; + case 360: return gdb_sys_inotify_init1; + /* + case 361: return gdb_sys_preadv; + case 362: return gdb_sys_pwritev; + case 363: return gdb_sys_rt_tgsigqueueinfo; + case 364: return gdb_sys_perf_event_open; + case 365: return gdb_sys_recvmmsg; + case 366: return gdb_sys_accept4; + case 367: return gdb_sys_fanotify_init; + case 368: return gdb_sys_fanotify_mark; + case 369: return gdb_sys_prlimit64; + case 370: return gdb_sys_name_to_handle_at; + case 371: return gdb_sys_open_by_handle_at; + case 372: return gdb_sys_clock_adjtime; + case 373: return gdb_sys_syncfs; + case 374: return gdb_sys_sendmmsg; + case 375: return gdb_sys_setns; + case 376: return gdb_sys_process_vm_readv; + case 377: return gdb_sys_process_vm_writev; + case 378: return gdb_sys_kcmp; + case 379: return gdb_sys_finit_module; + */ + case 983041: /* ARM_breakpoint */ return gdb_sys_no_syscall; + case 983042: /* ARM_cacheflush */ return gdb_sys_no_syscall; + case 983043: /* ARM_usr26 */ return gdb_sys_no_syscall; + case 983044: /* ARM_usr32 */ return gdb_sys_no_syscall; + case 983045: /* ARM_set_tls */ return gdb_sys_no_syscall; + default: return gdb_sys_no_syscall; + } } /* Record all registers but PC register for process-record. */ @@ -1350,6 +1712,15 @@ arm_linux_skip_trampoline_code (struct frame_info *frame, CORE_ADDR pc) return find_solib_trampoline_target (frame, pc); } +/* Implement the gcc_target_options gdbarch method. */ + +static char * +arm_linux_gcc_target_options (struct gdbarch *gdbarch) +{ + /* GCC doesn't know "-m32". */ + return NULL; +} + static void arm_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) @@ -1448,8 +1819,6 @@ arm_linux_init_abi (struct gdbarch_info info, set_gdbarch_displaced_step_copy_insn (gdbarch, arm_linux_displaced_step_copy_insn); set_gdbarch_displaced_step_fixup (gdbarch, arm_displaced_step_fixup); - set_gdbarch_displaced_step_free_closure (gdbarch, - simple_displaced_step_free_closure); set_gdbarch_displaced_step_location (gdbarch, linux_displaced_step_location); /* Reversible debugging, process record. */ @@ -1467,8 +1836,6 @@ arm_linux_init_abi (struct gdbarch_info info, set_gdbarch_stap_parse_special_token (gdbarch, arm_stap_parse_special_token); - tdep->syscall_next_pc = arm_linux_syscall_next_pc; - /* `catch syscall' */ set_xml_syscall_file_name (gdbarch, "syscalls/arm-linux.xml"); set_gdbarch_get_syscall_number (gdbarch, arm_linux_get_syscall_number); @@ -1550,6 +1917,7 @@ arm_linux_init_abi (struct gdbarch_info info, arm_linux_record_tdep.size_hayes_esp_config = 12; arm_linux_record_tdep.size_size_t = 4; arm_linux_record_tdep.size_iovec = 8; + arm_linux_record_tdep.size_time_t = 4; /* These values are the second argument of system call "sys_ioctl". They are obtained from Linux Kernel source. */ @@ -1626,14 +1994,16 @@ arm_linux_init_abi (struct gdbarch_info info, arm_linux_record_tdep.fcntl_F_SETLK64 = 13; arm_linux_record_tdep.fcntl_F_SETLKW64 = 14; - arm_linux_record_tdep.arg1 = ARM_A1_REGNUM + 1; - arm_linux_record_tdep.arg2 = ARM_A1_REGNUM + 2; - arm_linux_record_tdep.arg3 = ARM_A1_REGNUM + 3; + arm_linux_record_tdep.arg1 = ARM_A1_REGNUM; + arm_linux_record_tdep.arg2 = ARM_A1_REGNUM + 1; + arm_linux_record_tdep.arg3 = ARM_A1_REGNUM + 2; arm_linux_record_tdep.arg4 = ARM_A1_REGNUM + 3; -} + arm_linux_record_tdep.arg5 = ARM_A1_REGNUM + 4; + arm_linux_record_tdep.arg6 = ARM_A1_REGNUM + 5; + arm_linux_record_tdep.arg7 = ARM_A1_REGNUM + 6; -/* Provide a prototype to silence -Wmissing-prototypes. */ -extern initialize_file_ftype _initialize_arm_linux_tdep; + set_gdbarch_gcc_target_options (gdbarch, arm_linux_gcc_target_options); +} void _initialize_arm_linux_tdep (void)