X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=gdb%2Fnto-tdep.c;h=d9c95a700dc3df9f56d2eb14f5ef1b63211e1d95;hb=37cc8bfee6166ea05f1fa2e7d9f0f4d90663b7fc;hp=abf63b912919bd216639b46f8680bcbc874ac5ee;hpb=1b883d351364d8b9e00021462e06d5dba0d61460;p=binutils-gdb.git
diff --git a/gdb/nto-tdep.c b/gdb/nto-tdep.c
index abf63b91291..d9c95a700dc 100644
--- a/gdb/nto-tdep.c
+++ b/gdb/nto-tdep.c
@@ -1,6 +1,7 @@
/* nto-tdep.c - general QNX Neutrino target functionality.
- Copyright 2003 Free Software Foundation, Inc.
+ Copyright (C) 2003, 2004, 2007, 2008, 2009, 2010
+ Free Software Foundation, Inc.
Contributed by QNX Software Systems Ltd.
@@ -8,7 +9,7 @@
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
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
@@ -17,11 +18,10 @@
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., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ along with this program. If not, see . */
-#include
+#include "defs.h"
+#include "gdb_stat.h"
#include "gdb_string.h"
#include "nto-tdep.h"
#include "top.h"
@@ -33,6 +33,9 @@
#include "elf-bfd.h"
#include "solib-svr4.h"
#include "gdbcore.h"
+#include "objfiles.h"
+
+#include
#ifdef __CYGWIN__
#include
@@ -72,7 +75,7 @@ nto_map_arch_to_cputype (const char *arch)
{
if (!strcmp (arch, "i386") || !strcmp (arch, "x86"))
return CPUTYPE_X86;
- if (!strcmp (arch, "rs6000") || !strcmp (arch, "ppc"))
+ if (!strcmp (arch, "rs6000") || !strcmp (arch, "powerpc"))
return CPUTYPE_PPC;
if (!strcmp (arch, "mips"))
return CPUTYPE_MIPS;
@@ -86,35 +89,64 @@ nto_map_arch_to_cputype (const char *arch)
int
nto_find_and_open_solib (char *solib, unsigned o_flags, char **temp_pathname)
{
- char *buf, arch_path[PATH_MAX], *nto_root, *endian;
+ char *buf, *arch_path, *nto_root, *endian, *base;
const char *arch;
- char *path_fmt = "%s/lib:%s/usr/lib:%s/usr/photon/lib\
-:%s/usr/photon/dll:%s/lib/dll";
+ int ret;
+#define PATH_FMT "%s/lib:%s/usr/lib:%s/usr/photon/lib:%s/usr/photon/dll:%s/lib/dll"
nto_root = nto_target ();
- if (strcmp (TARGET_ARCHITECTURE->arch_name, "i386") == 0)
+ if (strcmp (gdbarch_bfd_arch_info (target_gdbarch)->arch_name, "i386") == 0)
{
arch = "x86";
endian = "";
}
- else if (strcmp (TARGET_ARCHITECTURE->arch_name, "rs6000") == 0)
+ else if (strcmp (gdbarch_bfd_arch_info (target_gdbarch)->arch_name,
+ "rs6000") == 0
+ || strcmp (gdbarch_bfd_arch_info (target_gdbarch)->arch_name,
+ "powerpc") == 0)
{
arch = "ppc";
endian = "be";
}
else
{
- arch = TARGET_ARCHITECTURE->arch_name;
- endian = TARGET_BYTE_ORDER == BFD_ENDIAN_BIG ? "be" : "le";
+ arch = gdbarch_bfd_arch_info (target_gdbarch)->arch_name;
+ endian = gdbarch_byte_order (target_gdbarch)
+ == BFD_ENDIAN_BIG ? "be" : "le";
}
+ /* In case nto_root is short, add strlen(solib)
+ so we can reuse arch_path below. */
+ arch_path =
+ alloca (strlen (nto_root) + strlen (arch) + strlen (endian) + 2 +
+ strlen (solib));
sprintf (arch_path, "%s/%s%s", nto_root, arch, endian);
- buf = alloca (strlen (path_fmt) + strlen (arch_path) * 5 + 1);
- sprintf (buf, path_fmt, arch_path, arch_path, arch_path, arch_path,
+ buf = alloca (strlen (PATH_FMT) + strlen (arch_path) * 5 + 1);
+ sprintf (buf, PATH_FMT, arch_path, arch_path, arch_path, arch_path,
arch_path);
- return openp (buf, 1, solib, o_flags, 0, temp_pathname);
+ /* Don't assume basename() isn't destructive. */
+ base = strrchr (solib, '/');
+ if (!base)
+ base = solib;
+ else
+ base++; /* Skip over '/'. */
+
+ ret = openp (buf, 1, base, o_flags, temp_pathname);
+ if (ret < 0 && base != solib)
+ {
+ sprintf (arch_path, "/%s", solib);
+ ret = open (arch_path, o_flags, 0);
+ if (temp_pathname)
+ {
+ if (ret >= 0)
+ *temp_pathname = gdb_realpath (arch_path);
+ else
+ **temp_pathname = '\0';
+ }
+ }
+ return ret;
}
void
@@ -125,20 +157,24 @@ nto_init_solib_absolute_prefix (void)
const char *arch;
nto_root = nto_target ();
- if (strcmp (TARGET_ARCHITECTURE->arch_name, "i386") == 0)
+ if (strcmp (gdbarch_bfd_arch_info (target_gdbarch)->arch_name, "i386") == 0)
{
arch = "x86";
endian = "";
}
- else if (strcmp (TARGET_ARCHITECTURE->arch_name, "rs6000") == 0)
+ else if (strcmp (gdbarch_bfd_arch_info (target_gdbarch)->arch_name,
+ "rs6000") == 0
+ || strcmp (gdbarch_bfd_arch_info (target_gdbarch)->arch_name,
+ "powerpc") == 0)
{
arch = "ppc";
endian = "be";
}
else
{
- arch = TARGET_ARCHITECTURE->arch_name;
- endian = TARGET_BYTE_ORDER == BFD_ENDIAN_BIG ? "be" : "le";
+ arch = gdbarch_bfd_arch_info (target_gdbarch)->arch_name;
+ endian = gdbarch_byte_order (target_gdbarch)
+ == BFD_ENDIAN_BIG ? "be" : "le";
}
sprintf (arch_path, "%s/%s%s", nto_root, arch, endian);
@@ -148,7 +184,8 @@ nto_init_solib_absolute_prefix (void)
}
char **
-nto_parse_redirection (char *pargv[], char **pin, char **pout, char **perr)
+nto_parse_redirection (char *pargv[], const char **pin, const char **pout,
+ const char **perr)
{
char **argv;
char *in, *out, *err, *p;
@@ -204,36 +241,53 @@ nto_parse_redirection (char *pargv[], char **pin, char **pout, char **perr)
solib-svr4.c to support nto_relocate_section_addresses
which is different from the svr4 version. */
+/* Link map info to include in an allocated so_list entry */
+
struct lm_info
-{
- /* Pointer to copy of link map from inferior. The type is char *
- rather than void *, so that we may use byte offsets to find the
- various fields without the need for a cast. */
- char *lm;
-};
+ {
+ /* Pointer to copy of link map from inferior. The type is char *
+ rather than void *, so that we may use byte offsets to find the
+ various fields without the need for a cast. */
+ gdb_byte *lm;
+
+ /* Amount by which addresses in the binary should be relocated to
+ match the inferior. This could most often be taken directly
+ from lm, but when prelinking is involved and the prelink base
+ address changes, we may need a different offset, we want to
+ warn about the difference and compute it only once. */
+ CORE_ADDR l_addr;
+
+ /* The target location of lm. */
+ CORE_ADDR lm_addr;
+ };
+
static CORE_ADDR
LM_ADDR (struct so_list *so)
{
- struct link_map_offsets *lmo = nto_fetch_link_map_offsets ();
+ if (so->lm_info->l_addr == (CORE_ADDR)-1)
+ {
+ struct link_map_offsets *lmo = nto_fetch_link_map_offsets ();
+ struct type *ptr_type = builtin_type (target_gdbarch)->builtin_data_ptr;
- return (CORE_ADDR) extract_signed_integer (so->lm_info->lm +
- lmo->l_addr_offset,
- lmo->l_addr_size);
+ so->lm_info->l_addr =
+ extract_typed_address (so->lm_info->lm + lmo->l_addr_offset, ptr_type);
+ }
+ return so->lm_info->l_addr;
}
static CORE_ADDR
nto_truncate_ptr (CORE_ADDR addr)
{
- if (TARGET_PTR_BIT == sizeof (CORE_ADDR) * 8)
+ if (gdbarch_ptr_bit (target_gdbarch) == sizeof (CORE_ADDR) * 8)
/* We don't need to truncate anything, and the bit twiddling below
will fail due to overflow problems. */
return addr;
else
- return addr & (((CORE_ADDR) 1 << TARGET_PTR_BIT) - 1);
+ return addr & (((CORE_ADDR) 1 << gdbarch_ptr_bit (target_gdbarch)) - 1);
}
-Elf_Internal_Phdr *
+static Elf_Internal_Phdr *
find_load_phdr (bfd *abfd)
{
Elf_Internal_Phdr *phdr;
@@ -252,7 +306,7 @@ find_load_phdr (bfd *abfd)
}
void
-nto_relocate_section_addresses (struct so_list *so, struct section_table *sec)
+nto_relocate_section_addresses (struct so_list *so, struct target_section *sec)
{
/* Neutrino treats the l_addr base address field in link.h as different than
the base address in the System V ABI and so the offset needs to be
@@ -264,59 +318,67 @@ nto_relocate_section_addresses (struct so_list *so, struct section_table *sec)
sec->endaddr = nto_truncate_ptr (sec->endaddr + LM_ADDR (so) - vaddr);
}
-static void
-fetch_core_registers (char *core_reg_sect, unsigned core_reg_size,
- int which, CORE_ADDR reg_addr)
+/* This is cheating a bit because our linker code is in libc.so. If we
+ ever implement lazy linking, this may need to be re-examined. */
+int
+nto_in_dynsym_resolve_code (CORE_ADDR pc)
{
- nto_regset_t regset;
-
- nto_init_solib_absolute_prefix ();
-
- if (which == NTO_REG_GENERAL)
- {
- memcpy ((char *) ®set, core_reg_sect,
- min (core_reg_size, sizeof (regset)));
- nto_supply_gregset ((char *) ®set);
- }
- else if (which == NTO_REG_FLOAT)
- {
- memcpy ((char *) ®set, core_reg_sect,
- min (core_reg_size, sizeof (regset)));
- nto_supply_fpregset ((char *) ®set);
- }
- else if (which == NTO_REG_ALT)
- {
- memcpy ((char *) ®set, core_reg_sect,
- min (core_reg_size, sizeof (regset)));
- nto_supply_altregset ((char *) ®set);
- }
+ if (in_plt_section (pc, NULL))
+ return 1;
+ return 0;
}
void
-nto_dummy_supply_regset (char *regs)
+nto_dummy_supply_regset (struct regcache *regcache, char *regs)
{
/* Do nothing. */
}
-/* Register that we are able to handle ELF file formats using standard
- procfs "regset" structures. */
-static struct core_fns regset_core_fns = {
- bfd_target_elf_flavour, /* core_flavour */
- default_check_format, /* check_format */
- default_core_sniffer, /* core_sniffer */
- fetch_core_registers, /* core_read_registers */
- NULL /* next */
+enum gdb_osabi
+nto_elf_osabi_sniffer (bfd *abfd)
+{
+ if (nto_is_nto_target)
+ return nto_is_nto_target (abfd);
+ return GDB_OSABI_UNKNOWN;
+}
+
+static const char *nto_thread_state_str[] =
+{
+ "DEAD", /* 0 0x00 */
+ "RUNNING", /* 1 0x01 */
+ "READY", /* 2 0x02 */
+ "STOPPED", /* 3 0x03 */
+ "SEND", /* 4 0x04 */
+ "RECEIVE", /* 5 0x05 */
+ "REPLY", /* 6 0x06 */
+ "STACK", /* 7 0x07 */
+ "WAITTHREAD", /* 8 0x08 */
+ "WAITPAGE", /* 9 0x09 */
+ "SIGSUSPEND", /* 10 0x0a */
+ "SIGWAITINFO", /* 11 0x0b */
+ "NANOSLEEP", /* 12 0x0c */
+ "MUTEX", /* 13 0x0d */
+ "CONDVAR", /* 14 0x0e */
+ "JOIN", /* 15 0x0f */
+ "INTR", /* 16 0x10 */
+ "SEM", /* 17 0x11 */
+ "WAITCTX", /* 18 0x12 */
+ "NET_SEND", /* 19 0x13 */
+ "NET_REPLY" /* 20 0x14 */
};
-void
-_initialize_nto_tdep ()
+char *
+nto_extra_thread_info (struct thread_info *ti)
{
- add_show_from_set (add_set_cmd ("nto-debug", class_maintenance, var_zinteger, (char *) &nto_internal_debugging, "Set QNX NTO internal debugging.\n\
-When non-zero, nto specific debug info is\n\
-displayed. Different information is displayed\n\
-for different positive values.", &setdebuglist),
- &showdebuglist);
+ if (ti && ti->private
+ && ti->private->state < ARRAY_SIZE (nto_thread_state_str))
+ return (char *)nto_thread_state_str [ti->private->state];
+ return "";
+}
+void
+nto_initialize_signals (void)
+{
/* We use SIG45 for pulses, or something, so nostop, noprint
and pass them. */
signal_stop_update (target_signal_from_name ("SIG45"), 0);
@@ -335,7 +397,22 @@ for different positive values.", &setdebuglist),
signal_print_update (SIGPHOTON, 0);
signal_pass_update (SIGPHOTON, 1);
#endif
+}
- /* Register core file support. */
- add_core_fns (®set_core_fns);
+/* Provide a prototype to silence -Wmissing-prototypes. */
+extern initialize_file_ftype _initialize_nto_tdep;
+
+void
+_initialize_nto_tdep (void)
+{
+ add_setshow_zinteger_cmd ("nto-debug", class_maintenance,
+ &nto_internal_debugging, _("\
+Set QNX NTO internal debugging."), _("\
+Show QNX NTO internal debugging."), _("\
+When non-zero, nto specific debug info is\n\
+displayed. Different information is displayed\n\
+for different positive values."),
+ NULL,
+ NULL, /* FIXME: i18n: QNX NTO internal debugging is %s. */
+ &setdebuglist, &showdebuglist);
}