Linux x86 low-level debug register code synchronization
This commit makes several small changes to the low-level debug register code for Linux x86, making the code in the GDB and gdbserver implementations identical. gdb/ChangeLog: * x86-linux-nat.c (x86_linux_dr_set_addr): Update assertion. (x86_linux_new_thread): Rename argument. gdb/gdbserver/ChangeLog: * linux-x86-low.c (x86_linux_dr_get): Add assertion. Use perror_with_name. Pass string through gettext. (x86_linux_dr_set): Likewise.
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@ -1,3 +1,8 @@
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2015-03-24 Gary Benson <gbenson@redhat.com>
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* x86-linux-nat.c (x86_linux_dr_set_addr): Update assertion.
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(x86_linux_new_thread): Rename argument.
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2015-03-24 Gary Benson <gbenson@redhat.com>
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* nat/x86-linux.h: New file.
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@ -1,3 +1,9 @@
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2015-03-24 Gary Benson <gbenson@redhat.com>
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* linux-x86-low.c (x86_linux_dr_get): Add assertion.
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Use perror_with_name. Pass string through gettext.
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(x86_linux_dr_set): Likewise.
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2015-03-24 Gary Benson <gbenson@redhat.com>
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* linux-x86-low.c (x86_dr_low_set_addr): Rename to...
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@ -544,12 +544,13 @@ x86_linux_dr_get (ptid_t ptid, int regnum)
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int tid;
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unsigned long value;
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gdb_assert (ptid_lwp_p (ptid));
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tid = ptid_get_lwp (ptid);
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errno = 0;
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value = ptrace (PTRACE_PEEKUSER, tid, u_debugreg_offset (regnum), 0);
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if (errno != 0)
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error ("Couldn't read debug register");
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perror_with_name (_("Couldn't read debug register"));
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return value;
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}
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@ -559,12 +560,13 @@ x86_linux_dr_set (ptid_t ptid, int regnum, unsigned long value)
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{
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int tid;
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gdb_assert (ptid_lwp_p (ptid));
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tid = ptid_get_lwp (ptid);
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errno = 0;
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ptrace (PTRACE_POKEUSER, tid, u_debugreg_offset (regnum), value);
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if (errno != 0)
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error ("Couldn't write debug register");
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perror_with_name (_("Couldn't write debug register"));
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}
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static int
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@ -165,7 +165,7 @@ x86_linux_dr_set_addr (int regnum, CORE_ADDR addr)
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{
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ptid_t pid_ptid = pid_to_ptid (ptid_get_pid (current_lwp_ptid ()));
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gdb_assert (regnum >= 0 && regnum <= DR_LASTADDR - DR_FIRSTADDR);
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gdb_assert (DR_FIRSTADDR <= regnum && regnum <= DR_LASTADDR);
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iterate_over_lwps (pid_ptid, update_debug_registers_callback, NULL);
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}
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@ -223,9 +223,9 @@ x86_linux_prepare_to_resume (struct lwp_info *lwp)
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}
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static void
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x86_linux_new_thread (struct lwp_info *lp)
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x86_linux_new_thread (struct lwp_info *lwp)
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{
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lwp_set_debug_registers_changed (lp, 1);
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lwp_set_debug_registers_changed (lwp, 1);
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}
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