diff options
Diffstat (limited to 'gdb/mips-linux-nat.c')
| -rw-r--r-- | gdb/mips-linux-nat.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/gdb/mips-linux-nat.c b/gdb/mips-linux-nat.c index 2a383ab..79fa358 100644 --- a/gdb/mips-linux-nat.c +++ b/gdb/mips-linux-nat.c @@ -27,10 +27,13 @@ #include "regcache.h" #include "linux-nat.h" #include "mips-linux-tdep.h" +#include "target-descriptions.h" +#include "xml-support.h" #include "gdb_proc_service.h" #include "gregset.h" +#include <sgidefs.h> #include <sys/ptrace.h> #ifndef PTRACE_GET_THREAD_AREA @@ -81,6 +84,8 @@ mips_linux_register_addr (struct gdbarch *gdbarch, int regno, int store) regaddr = FPC_CSR; else if (regno == mips_regnum (gdbarch)->fp_implementation_revision) regaddr = store? (CORE_ADDR) -1 : FPC_EIR; + else if (mips_linux_restart_reg_p (gdbarch) && regno == MIPS_RESTART_REGNUM) + regaddr = 0; else regaddr = (CORE_ADDR) -1; @@ -114,6 +119,8 @@ mips64_linux_register_addr (struct gdbarch *gdbarch, int regno, int store) regaddr = MIPS64_FPC_CSR; else if (regno == mips_regnum (gdbarch)->fp_implementation_revision) regaddr = store? (CORE_ADDR) -1 : MIPS64_FPC_EIR; + else if (mips_linux_restart_reg_p (gdbarch) && regno == MIPS_RESTART_REGNUM) + regaddr = 0; else regaddr = (CORE_ADDR) -1; @@ -335,6 +342,36 @@ mips_linux_register_u_offset (struct gdbarch *gdbarch, int regno, int store_p) return mips_linux_register_addr (gdbarch, regno, store_p); } +static LONGEST (*super_xfer_partial) (struct target_ops *, enum target_object, + const char *, gdb_byte *, const gdb_byte *, + ULONGEST, LONGEST); + +static LONGEST +mips_linux_xfer_partial (struct target_ops *ops, + enum target_object object, + const char *annex, + gdb_byte *readbuf, const gdb_byte *writebuf, + ULONGEST offset, LONGEST len) +{ + if (object == TARGET_OBJECT_AVAILABLE_FEATURES) + { + if (annex != NULL && strcmp (annex, "target.xml") == 0) + { + /* Report that target registers are a size we know for sure + that we can get from ptrace. */ + if (_MIPS_SIM == _ABIO32) + annex = "mips-linux.xml"; + else + annex = "mips64-linux.xml"; + } + + return xml_builtin_xfer_partial (annex, readbuf, writebuf, offset, len); + } + + return super_xfer_partial (ops, object, annex, readbuf, writebuf, + offset, len); +} + void _initialize_mips_linux_nat (void); void @@ -348,5 +385,9 @@ _initialize_mips_linux_nat (void) t->to_fetch_registers = mips64_linux_fetch_registers; t->to_store_registers = mips64_linux_store_registers; + /* Override the default to_xfer_partial. */ + super_xfer_partial = t->to_xfer_partial; + t->to_xfer_partial = mips_linux_xfer_partial; + linux_nat_add_target (t); } |