Imported Upstream version 0.7.2

[platform/upstream/ltrace.git] / sysdeps / linux-gnu / ppc / arch.h

diff --git a/sysdeps/linux-gnu/ppc/arch.h b/sysdeps/linux-gnu/ppc/arch.h
index 711b4a3..fb8768a 100644 (file)
--- a/sysdeps/linux-gnu/ppc/arch.h
+++ b/sysdeps/linux-gnu/ppc/arch.h
@@ -1,3 +1,29 @@
+/*
+ * This file is part of ltrace.
+ * Copyright (C) 2012 Petr Machata
+ * Copyright (C) 2006 Paul Gilliam
+ * Copyright (C) 2002,2004 Juan Cespedes
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+#ifndef LTRACE_PPC_ARCH_H
+#define LTRACE_PPC_ARCH_H
+
+#include <gelf.h>
+
 #define BREAKPOINT_VALUE { 0x7f, 0xe0, 0x00, 0x08 }
 #define BREAKPOINT_LENGTH 4
 #define DECR_PC_AFTER_BREAK 0
@@ -11,14 +37,72 @@
 #define ARCH_SUPPORTS_OPD
 #endif
 
-#define PLT_REINITALISATION_BP    "_start"
+#define ARCH_HAVE_ATOMIC_SINGLESTEP
+#define ARCH_HAVE_ADD_PLT_ENTRY
+#define ARCH_HAVE_TRANSLATE_ADDRESS
+#define ARCH_HAVE_DYNLINK_DONE
+#define ARCH_HAVE_FETCH_ARG
+#define ARCH_ENDIAN_BIG
+#define ARCH_HAVE_SIZEOF
+#define ARCH_HAVE_ALIGNOF
 
-/* Start of arch-specific functions.  */
-#define ARCH_HAVE_UMOVELONG
+struct library_symbol;
 
-#define PPC_NOP { 0x60, 0x00, 0x00, 0x00 }
-#define PPC_NOP_LENGTH 4
+#define ARCH_HAVE_LTELF_DATA
+struct arch_ltelf_data {
+       GElf_Addr plt_stub_vma;
+       struct library_symbol *stubs;
+       Elf_Data *opd_data;
+       GElf_Addr opd_base;
+       GElf_Xword opd_size;
+       int secure_plt;
+};
 
-#if (PPC_NOP_LENGTH != BREAKPOINT_LENGTH)
-#error "Length of the breakpoint value not equal to the length of a nop instruction"
-#endif
+#define ARCH_HAVE_LIBRARY_DATA
+struct arch_library_data {
+       GElf_Addr pltgot_addr;
+       int bss_plt_prelinked;
+};
+
+enum ppc64_plt_type {
+       /* Either a non-PLT symbol, or PPC32 symbol.  */
+       PPC_DEFAULT = 0,
+
+       /* PPC64 STUB, never resolved.  */
+       PPC64_PLT_STUB,
+
+       /* Unresolved PLT symbol (.plt contains PLT address).  */
+       PPC_PLT_UNRESOLVED,
+
+       /* Resolved PLT symbol.  The corresponding .plt slot contained
+        * target address, which was changed to the address of
+        * corresponding PLT entry.  The original is now saved in
+        * RESOLVED_VALUE.  */
+       PPC_PLT_RESOLVED,
+};
+
+#define ARCH_HAVE_LIBRARY_SYMBOL_DATA
+struct arch_library_symbol_data {
+       enum ppc64_plt_type type;
+       GElf_Addr resolved_value;
+
+       /* Address of corresponding slot in .plt.  */
+       GElf_Addr plt_slot_addr;
+};
+
+#define ARCH_HAVE_BREAKPOINT_DATA
+struct arch_breakpoint_data {
+       /* We need this just for arch_breakpoint_init.  */
+};
+
+#define ARCH_HAVE_PROCESS_DATA
+struct arch_process_data {
+       /* Breakpoint that hits when the dynamic linker is about to
+        * update a .plt slot.  NULL before that address is known.  */
+       struct breakpoint *dl_plt_update_bp;
+
+       /* PLT update breakpoint looks here for the handler.  */
+       struct process_stopping_handler *handler;
+};
+
+#endif /* LTRACE_PPC_ARCH_H */