diff options
Diffstat (limited to 'gdb/nto-tdep.c')
| -rw-r--r-- | gdb/nto-tdep.c | 125 |
1 files changed, 102 insertions, 23 deletions
diff --git a/gdb/nto-tdep.c b/gdb/nto-tdep.c index 50b4fc5..b882a22 100644 --- a/gdb/nto-tdep.c +++ b/gdb/nto-tdep.c @@ -65,6 +65,19 @@ nto_target (void) #endif } +void +nto_set_target(struct nto_target_ops *targ) +{ + nto_regset_id = targ->regset_id; + nto_supply_gregset = targ->supply_gregset; + nto_supply_fpregset = targ->supply_fpregset; + nto_supply_altregset = targ->supply_altregset; + nto_supply_regset = targ->supply_regset; + nto_register_area = targ->register_area; + nto_regset_fill = targ->regset_fill; + nto_fetch_link_map_offsets = targ->fetch_link_map_offsets; +} + /* Take a string such as i386, rs6000, etc. and map it onto CPUTYPE_X86, CPUTYPE_PPC, etc. as defined in nto-share/dsmsgs.h. */ int @@ -86,10 +99,10 @@ 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) @@ -109,13 +122,38 @@ nto_find_and_open_solib (char *solib, unsigned o_flags, char **temp_pathname) endian = TARGET_BYTE_ORDER == 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, OPF_TRY_CWD_FIRST, 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, 0, 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 @@ -266,6 +304,51 @@ nto_relocate_section_addresses (struct so_list *so, struct section_table *sec) sec->endaddr = nto_truncate_ptr (sec->endaddr + LM_ADDR (so) - vaddr); } +/* 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) +{ + if (in_plt_section (pc, NULL)) + return 1; + return 0; +} + +void +nto_generic_supply_gpregset (const struct regset *regset, + struct regcache *regcache, int regnum, + const void *gregs, size_t len) +{ +} + +void +nto_generic_supply_fpregset (const struct regset *regset, + struct regcache *regcache, int regnum, + const void *fpregs, size_t len) +{ +} + +void +nto_generic_supply_altregset (const struct regset *regset, + struct regcache *regcache, int regnum, + const void *altregs, size_t len) +{ +} + +void +nto_dummy_supply_regset (char *regs) +{ + /* Do nothing. */ +} + +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 void fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, int which, CORE_ADDR reg_addr) @@ -287,12 +370,6 @@ fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, } } -void -nto_dummy_supply_regset (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 = { @@ -304,18 +381,8 @@ static struct core_fns regset_core_fns = { }; void -_initialize_nto_tdep (void) +nto_initialize_signals (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.", "\ -QNX NTO internal debugging is %s.", - NULL, NULL, &setdebuglist, &showdebuglist); - /* We use SIG45 for pulses, or something, so nostop, noprint and pass them. */ signal_stop_update (target_signal_from_name ("SIG45"), 0); @@ -334,7 +401,19 @@ QNX NTO internal debugging is %s.", signal_print_update (SIGPHOTON, 0); signal_pass_update (SIGPHOTON, 1); #endif +} +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.", "\ +QNX NTO internal debugging is %s.", NULL, NULL, &setdebuglist, &showdebuglist); /* Register core file support. */ deprecated_add_core_fns (®set_core_fns); } |