/* Target-dependent code for GNU/Linux on MIPS processors.
- Copyright (C) 2001, 2002, 2004, 2005, 2006, 2007, 2008
+ Copyright (C) 2001, 2002, 2004, 2005, 2006, 2007, 2008, 2009
Free Software Foundation, Inc.
This file is part of GDB.
#include "symtab.h"
#include "target-descriptions.h"
#include "mips-linux-tdep.h"
+#include "glibc-tdep.h"
static struct target_so_ops mips_svr4_so_ops;
/* Supply a 64-bit register. */
-void
+static void
supply_64bit_reg (struct regcache *regcache, int regnum,
const gdb_byte *buf)
{
{
unsigned char buf[28], *p;
ULONGEST insn, insn1;
- int n64 = (mips_abi (current_gdbarch) == MIPS_ABI_N64);
+ int n64 = (mips_abi (target_gdbarch) == MIPS_ABI_N64);
read_memory (pc - 12, buf, 28);
}
/* Return non-zero iff PC belongs to the dynamic linker resolution
- code or to a stub. */
+ code, a PLT entry, or a lazy binding stub. */
static int
mips_linux_in_dynsym_resolve_code (CORE_ADDR pc)
{
/* Check whether PC is in the dynamic linker. This also checks
- whether it is in the .plt section, which MIPS does not use. */
+ whether it is in the .plt section, used by non-PIC executables. */
if (svr4_in_dynsym_resolve_code (pc))
return 1;
and glibc_skip_solib_resolver in glibc-tdep.c. The normal glibc
implementation of this triggers at "fixup" from the same objfile as
"_dl_runtime_resolve"; MIPS GNU/Linux can trigger at
- "__dl_runtime_resolve" directly. An unresolved PLT entry will
- point to _dl_runtime_resolve, which will first call
+ "__dl_runtime_resolve" directly. An unresolved lazy binding
+ stub will point to _dl_runtime_resolve, which will first call
__dl_runtime_resolve, and then pass control to the resolved
function. */
if (resolver && SYMBOL_VALUE_ADDRESS (resolver) == pc)
return frame_pc_unwind (get_current_frame ());
- return 0;
+ return glibc_skip_solib_resolver (gdbarch, pc);
}
/* Signal trampoline support. There are four supported layouts for a
/* When FRAME is at a syscall instruction, return the PC of the next
instruction to be executed. */
-CORE_ADDR
+static CORE_ADDR
mips_linux_syscall_next_pc (struct frame_info *frame)
{
CORE_ADDR pc = get_frame_pc (frame);
break;
}
- set_gdbarch_skip_trampoline_code (gdbarch, find_solib_trampoline_target);
set_gdbarch_skip_solib_resolver (gdbarch, mips_linux_skip_resolver);
set_gdbarch_software_single_step (gdbarch, mips_software_single_step);
}
}
+/* Provide a prototype to silence -Wmissing-prototypes. */
+extern initialize_file_ftype _initialize_mips_linux_tdep;
+
void
_initialize_mips_linux_tdep (void)
{