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* nto-tdep.h: Include osabi.h. Prototypes for generic Neutrino

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osabi sniffer, signal handling initializer, 'in_dynsym_resolve_code'
function and nto_set_target function.
(struct nto_target_ops): Put comments inline with struct.  Add osabi
sniffer hook.  Redefine macros to permit testing/assignment.  Remove
nto_ prefix from members.
* nto-tdep.c (nto_find_and_open_solib): Allocate all buffers
dynamically to support arbitrary root paths.  Check for basename of
lib in search path and then check for absolute.
(nto_in_dynsym_resolve_code): New function.
(nto_core_sniffer): New function.
(regset_core_fns): Register core sniffer.
(nto_initialize_signals): New function.
(_initialize_nto_tdep): Move signal initialization code to above to
avoid initialization race conditions.
(nto_set_target): New function.
* nto-procfs.c: Minor formatting/indenting changes.
(procfs_is_nto_target): New function.
(procfs_open): Set nto_is_nto_target.
(_initialize_procfs): Ditto.  Remove notice_signals() call to avoid
initialization race conditions.
(procfs_create_inferior): Resume inferior after creation.
* i386-nto-tdep.c: Declare i386_nto_target.
(init_i386nto_ops): Initialize i386_nto_target instead of
current_nto_target.
(i386nto_init_abi): Initialize signals.  Call nto_set_target.  Set
TARGET_SO_IN_DYNSYM_RESOLVE_CODE.
(_initialize_i386nto_tdep): Call init_i386nto_ops.  Register osabi sniffer.
This commit is contained in:
Kris Warkentin
2004-12-10 13:38:23 +00:00
parent 0e2cfdce25
commit d737fd7f91
5 changed files with 267 additions and 107 deletions
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139
gdb/nto-tdep.h
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@@ -26,49 +26,15 @@
#include "defs.h"
#include "solist.h"
/* Generic functions in nto-tdep.c. */
extern void nto_init_solib_absolute_prefix (void);
char **nto_parse_redirection (char *start_argv[], char **in,
char **out, char **err);
int proc_iterate_over_mappings (int (*func) (int, CORE_ADDR));
void nto_relocate_section_addresses (struct so_list *, struct section_table *);
int nto_map_arch_to_cputype (const char *);
int nto_find_and_open_solib (char *, unsigned, char **);
/* Dummy function for initializing nto_target_ops on targets which do
not define a particular regset. */
void nto_dummy_supply_regset (char *regs);
#include "osabi.h"
#include "regset.h"
/* Target operations defined for Neutrino targets (<target>-nto-tdep.c). */
struct nto_target_ops
{
int nto_internal_debugging;
unsigned nto_cpuinfo_flags;
int nto_cpuinfo_valid;
int (*nto_regset_id) (int);
void (*nto_supply_gregset) (char *);
void (*nto_supply_fpregset) (char *);
void (*nto_supply_altregset) (char *);
void (*nto_supply_regset) (int, char *);
int (*nto_register_area) (int, int, unsigned *);
int (*nto_regset_fill) (int, char *);
struct link_map_offsets *(*nto_fetch_link_map_offsets) (void);
};
extern struct nto_target_ops current_nto_target;
/* For 'maintenance debug nto-debug' command. */
#define nto_internal_debugging \
(current_nto_target.nto_internal_debugging)
int internal_debugging;
/* The CPUINFO flags from the remote. Currently used by
i386 for fxsave but future proofing other hosts.
@@ -76,47 +42,69 @@ extern struct nto_target_ops current_nto_target;
depending on our host/target. It would only be invalid
if we were talking to an older pdebug which didn't support
the cpuinfo message. */
#define nto_cpuinfo_flags \
(current_nto_target.nto_cpuinfo_flags)
unsigned cpuinfo_flags;
/* True if successfully retrieved cpuinfo from remote. */
#define nto_cpuinfo_valid \
(current_nto_target.nto_cpuinfo_valid)
int cpuinfo_valid;
/* Given a register, return an id that represents the Neutrino
regset it came from. If reg == -1 update all regsets. */
#define nto_regset_id(reg) \
(*current_nto_target.nto_regset_id) (reg)
int (*regset_id) (int);
#define nto_supply_gregset(regs) \
(*current_nto_target.nto_supply_gregset) (regs)
void (*supply_gregset) (char *);
#define nto_supply_fpregset(regs) \
(*current_nto_target.nto_supply_fpregset) (regs)
void (*supply_fpregset) (char *);
#define nto_supply_altregset(regs) \
(*current_nto_target.nto_supply_altregset) (regs)
void (*supply_altregset) (char *);
/* Given a regset, tell gdb about registers stored in data. */
#define nto_supply_regset(regset, data) \
(*current_nto_target.nto_supply_regset) (regset, data)
void (*supply_regset) (int, char *);
/* Given a register and regset, calculate the offset into the regset
and stuff it into the last argument. If regno is -1, calculate the
size of the entire regset. Returns length of data, -1 if unknown
regset, 0 if unknown register. */
#define nto_register_area(reg, regset, off) \
(*current_nto_target.nto_register_area) (reg, regset, off)
int (*register_area) (int, int, unsigned *);
/* Build the Neutrino register set info into the data buffer.
Return -1 if unknown regset, 0 otherwise. */
#define nto_regset_fill(regset, data) \
(*current_nto_target.nto_regset_fill) (regset, data)
int (*regset_fill) (int, char *);
/* Gives the fetch_link_map_offsets function exposure outside of
solib-svr4.c so that we can override relocate_section_addresses(). */
#define nto_fetch_link_map_offsets() \
(*current_nto_target.nto_fetch_link_map_offsets) ()
struct link_map_offsets *(*fetch_link_map_offsets) (void);
/* Used by nto_elf_osabi_sniffer to determine if we're connected to an
Neutrino target. */
enum gdb_osabi (*is_nto_target) (bfd *abfd);
};
extern struct nto_target_ops current_nto_target;
#define nto_internal_debugging (current_nto_target.internal_debugging)
#define nto_cpuinfo_flags (current_nto_target.cpuinfo_flags)
#define nto_cpuinfo_valid (current_nto_target.cpuinfo_valid)
#define nto_regset_id (current_nto_target.regset_id)
#define nto_supply_gregset (current_nto_target.supply_gregset)
#define nto_supply_fpregset (current_nto_target.supply_fpregset)
#define nto_supply_altregset (current_nto_target.supply_altregset)
#define nto_supply_regset (current_nto_target.supply_regset)
#define nto_register_area (current_nto_target.register_area)
#define nto_regset_fill (current_nto_target.regset_fill)
#define nto_fetch_link_map_offsets \
(current_nto_target.fetch_link_map_offsets)
#define nto_is_nto_target (current_nto_target.is_nto_target)
/* Keep this consistant with neutrino syspage.h. */
enum
@@ -153,4 +141,41 @@ typedef struct _debug_regs
qnx_reg64 padding[1024];
} nto_regset_t;
/* Generic functions in nto-tdep.c. */
void nto_init_solib_absolute_prefix (void);
void nto_set_target(struct nto_target_ops *);
char **nto_parse_redirection (char *start_argv[], char **in,
char **out, char **err);
int proc_iterate_over_mappings (int (*func) (int, CORE_ADDR));
void nto_relocate_section_addresses (struct so_list *,
struct section_table *);
int nto_map_arch_to_cputype (const char *);
int nto_find_and_open_solib (char *, unsigned, char **);
enum gdb_osabi nto_elf_osabi_sniffer (bfd *abfd);
void nto_initialize_signals (void);
void nto_generic_supply_gpregset (const struct regset *, struct regcache *,
int, const void *, size_t);
void nto_generic_supply_fpregset (const struct regset *, struct regcache *,
int, const void *, size_t);
void nto_generic_supply_altregset (const struct regset *, struct regcache *,
int, const void *, size_t);
/* Dummy function for initializing nto_target_ops on targets which do
not define a particular regset. */
void nto_dummy_supply_regset (char *regs);
int nto_in_dynsym_resolve_code (CORE_ADDR pc);
#endif