X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gdb%2Fmipsnbsd-tdep.c;h=97421504064225f471027e1b81fa5f5eefd16f83;hb=40c1a0073715c1e3f93afc83edac8396eb362a98;hp=7d75ccb61593eb56af6a3663d01c5027168bd763;hpb=74ed0bb4148e948d031523742a2250c539b01581;p=deliverable%2Fbinutils-gdb.git diff --git a/gdb/mipsnbsd-tdep.c b/gdb/mipsnbsd-tdep.c index 7d75ccb615..9742150406 100644 --- a/gdb/mipsnbsd-tdep.c +++ b/gdb/mipsnbsd-tdep.c @@ -1,7 +1,6 @@ /* Target-dependent code for NetBSD/mips. - Copyright (C) 2002, 2003, 2004, 2006, 2007, 2008 - Free Software Foundation, Inc. + Copyright (C) 2002-2014 Free Software Foundation, Inc. Contributed by Wasabi Systems, Inc. @@ -29,7 +28,7 @@ #include "osabi.h" #include "gdb_assert.h" -#include "gdb_string.h" +#include #include "nbsd-tdep.h" #include "mipsnbsd-tdep.h" @@ -173,7 +172,8 @@ mipsnbsd_fill_reg (const struct regcache *regcache, char *regs, int regno) } void -mipsnbsd_supply_fpreg (struct regcache *regcache, const char *fpregs, int regno) +mipsnbsd_supply_fpreg (struct regcache *regcache, + const char *fpregs, int regno) { struct gdbarch *gdbarch = get_regcache_arch (regcache); int i; @@ -211,6 +211,8 @@ mipsnbsd_fill_fpreg (const struct regcache *regcache, char *fpregs, int regno) * mips_isa_regsize (gdbarch))); } +#if 0 + /* Under NetBSD/mips, signal handler invocations can be identified by the designated code sequence that is used to return from a signal handler. In particular, the return address of a signal handler points to the @@ -244,39 +246,7 @@ static const unsigned char sigtramp_retcode_mipseb[RETCODE_SIZE] = 0x00, 0x00, 0x00, 0x0c, /* syscall */ }; -static LONGEST -mipsnbsd_sigtramp_offset (struct frame_info *this_frame) -{ - CORE_ADDR pc = get_frame_pc (this_frame); - const char *retcode = gdbarch_byte_order (get_frame_arch (this_frame)) - == BFD_ENDIAN_BIG ? sigtramp_retcode_mipseb : - sigtramp_retcode_mipsel; - unsigned char ret[RETCODE_SIZE], w[4]; - LONGEST off; - int i; - - if (!safe_frame_unwind_memory (this_frame, pc, w, sizeof (w))) - return -1; - - for (i = 0; i < RETCODE_NWORDS; i++) - { - if (memcmp (w, retcode + (i * 4), 4) == 0) - break; - } - if (i == RETCODE_NWORDS) - return -1; - - off = i * 4; - pc -= off; - - if (!safe_frame_unwind_memory (this_frame, pc, ret, sizeof (ret))) - return -1; - - if (memcmp (ret, retcode, RETCODE_SIZE) == 0) - return off; - - return -1; -} +#endif /* Figure out where the longjmp will land. We expect that we have just entered longjmp and haven't yet setup the stack frame, so the @@ -294,8 +264,9 @@ static int mipsnbsd_get_longjmp_target (struct frame_info *frame, CORE_ADDR *pc) { struct gdbarch *gdbarch = get_frame_arch (frame); + enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); CORE_ADDR jb_addr; - char *buf; + gdb_byte *buf; buf = alloca (NBSD_MIPS_JB_ELEMENT_SIZE (gdbarch)); @@ -305,8 +276,8 @@ mipsnbsd_get_longjmp_target (struct frame_info *frame, CORE_ADDR *pc) NBSD_MIPS_JB_ELEMENT_SIZE (gdbarch))) return 0; - *pc = extract_unsigned_integer (buf, NBSD_MIPS_JB_ELEMENT_SIZE (gdbarch)); - + *pc = extract_unsigned_integer (buf, NBSD_MIPS_JB_ELEMENT_SIZE (gdbarch), + byte_order); return 1; } @@ -408,14 +379,8 @@ mipsnbsd_init_abi (struct gdbarch_info info, } -static enum gdb_osabi -mipsnbsd_core_osabi_sniffer (bfd *abfd) -{ - if (strcmp (bfd_get_target (abfd), "netbsd-core") == 0) - return GDB_OSABI_NETBSD_ELF; - - return GDB_OSABI_UNKNOWN; -} +/* Provide a prototype to silence -Wmissing-prototypes. */ +extern initialize_file_ftype _initialize_mipsnbsd_tdep; void _initialize_mipsnbsd_tdep (void)