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2012-04-27 Sergio Durigan Junior <sergiodj@redhat.com>

Browse source 
Tom Tromey  <tromey@redhat.com>
	    Jan Kratochvil  <jan.kratochvil@redhat.com>

	* Makefile.in (SFILES): Add `probe' and `stap-probe'.
	(COMMON_OBS): Likewise.
	(HFILES_NO_SRCDIR): Add `probe'.
	* NEWS: Mention support for static and SystemTap probes.
	* amd64-tdep.c (amd64_init_abi): Initializing proper fields used by
	SystemTap probes' arguments parser.
	* arm-linux-tdep.c: Including headers needed to perform the parsing
	of SystemTap probes' arguments.
	(arm_stap_is_single_operand): New function.
	(arm_stap_parse_special_token): Likewise.
	(arm_linux_init_abi): Initializing proper fields used by SystemTap
	probes' arguments parser.
	* ax-gdb.c (require_rvalue): Removing static declaration.
	(gen_expr): Likewise.
	* ax-gdb.h (gen_expr): Declaring function.
	(require_rvalue): Likewise.
	* breakpoint.c: Include `gdb_regex.h' and `probe.h'.
	(bkpt_probe_breakpoint_ops): New variable.
	(momentary_breakpoint_from_master): Set the `probe' value.
	(add_location_to_breakpoint): Likewise.
	(break_command_1): Using proper breakpoint_ops according to the
	argument passed by the user in the command line.
	(bkpt_probe_insert_location): New function.
	(bkpt_probe_remove_location): Likewise.
	(bkpt_probe_create_sals_from_address): Likewise.
	(bkpt_probe_decode_linespec): Likewise.
	(tracepoint_probe_create_sals_from_address): Likewise.
	(tracepoint_probe_decode_linespec): Likewise.
	(tracepoint_probe_breakpoint_ops): New variable.
	(trace_command): Using proper breakpoint_ops according to the
	argument passed by the user in the command line.
	(initialize_breakpoint_ops): Initializing breakpoint_ops for
	static probes on breakpoints and tracepoints.
	* breakpoint.h (struct bp_location) <probe>: New field.
	* cli-utils.c (skip_spaces_const): New function.
	(extract_arg): Likewise.
	* cli-utils.h (skip_spaces_const): Likewise.
	(extract_arg): Likewise.
	* coffread.c (coff_sym_fns): Add `sym_probe_fns' value.
	* configure.ac: Append `stap-probe.o' to be generated when ELF
	support is present.
	* configure: Regenerate.
	* dbxread.c (aout_sym_fns): Add `sym_probe_fns' value.
	* elfread.c: Include `probe.h' and `arch-utils.h'.
	(probe_key): New variable.
	(elf_get_probes): New function.
	(elf_get_probe_argument_count): Likewise.
	(elf_evaluate_probe_argument): Likewise.
	(elf_compile_to_ax): Likewise.
	(elf_symfile_relocate_probe): Likewise.
	(stap_probe_key_free): Likewise.
	(elf_probe_fns): New variable.
	(elf_sym_fns): Add `sym_probe_fns' value.
	(elf_sym_fns_lazy_psyms): Likewise.
	(elf_sym_fns_gdb_index): Likewise.
	(_initialize_elfread): Initialize objfile cache for static
	probes.
	* gdb_vecs.h (struct probe): New forward declaration.
	(probe_p): New VEC declaration.
	* gdbarch.c: Regenerate.
	* gdbarch.h: Regenerate.
	* gdbarch.sh (stap_integer_prefix): New variable.
	(stap_integer_suffix): Likewise.
	(stap_register_prefix): Likewise.
	(stap_register_suffix): Likewise.
	(stap_register_indirection_prefix): Likewise.
	(stap_register_indirection_suffix): Likewise.
	(stap_gdb_register_prefix): Likewise.
	(stap_gdb_register_suffix): Likewise.
	(stap_is_single_operand): New function.
	(stap_parse_special_token): Likewise.
	(struct stap_parse_info): Forward declaration.
	* i386-tdep.c: Including headers needed to perform the parsing
	of SystemTap probes' arguments.
	(i386_stap_is_single_operand): New function.
	(i386_stap_parse_special_token): Likewise.
	(i386_elf_init_abi): Initializing proper fields used by SystemTap
	probes' arguments parser.
	* i386-tdep.h (i386_stap_is_single_operand): New function.
	(i386_stap_parse_special_token): Likewise.
	* machoread.c (macho_sym_fns): Add `sym_probe_fns' value.
	* mipsread.c (ecoff_sym_fns): Likewise.
	* objfiles.c (objfile_relocate1): Support relocation for static
	probes.
	* parse.c (prefixify_expression): Remove static declaration.
	(initialize_expout): Likewise.
	(reallocate_expout): Likewise.
	* parser-defs.h (initialize_expout): Declare function.
	(reallocate_expout): Likewise.
	(prefixify_expression): Likewise.
	* ppc-linux-tdep.c: Including headers needed to perform the parsing
	of SystemTap probes' arguments.
	(ppc_stap_is_single_operand): New function.
	(ppc_stap_parse_special_token): Likewise.
	(ppc_linux_init_abi): Initializing proper fields used by SystemTap
	probes' arguments parser.
	* probe.c: New file, for generic statically defined probe support.
	* probe.h: Likewise.
	* s390-tdep.c: Including headers needed to perform the parsing of
	SystemTap probes' arguments.
	(s390_stap_is_single_operand): New function.
	(s390_gdbarch_init): Initializing proper fields used by SystemTap
	probes' arguments parser.
	* somread.c (som_sym_fns): Add `sym_probe_fns' value.
	* stap-probe.c: New file, for SystemTap probe support.
	* stap-probe.h: Likewise.
	* symfile.h: Include `gdb_vecs.h'.
	(struct sym_probe_fns): New struct.
	(struct sym_fns) <sym_probe_fns>: New field.
	* symtab.c (init_sal): Initialize `probe' field.
	* symtab.h (struct probe): Forward declaration.
	(struct symtab_and_line) <probe>: New field.
	* tracepoint.c (start_tracing): Adjust semaphore on breakpoints
	locations.
	(stop_tracing): Likewise.
	* xcoffread.c (xcoff_sym_fns): Add `sym_probe_fns' value.
This commit is contained in:
Sergio Durigan Junior 2012-04-27 20:47:57 +00:00
parent 2755f698e1
commit 55aa24fb2e
39 changed files with 4254 additions and 35 deletions
Download patch file Download diff file Expand all files Collapse all files

30
gdb/tracepoint.c
View file

@ -52,6 +52,7 @@
#include "memrange.h"
#include "exceptions.h"
#include "cli/cli-utils.h"
#include "probe.h"
/* readline include files */
#include "readline/readline.h"
@ -1717,6 +1718,7 @@ start_tracing (char *notes)
for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, b); ix++)
{
struct tracepoint *t = (struct tracepoint *) b;
struct bp_location *loc;
if (b->enable_state == bp_enabled)
any_enabled = 1;
@ -1779,6 +1781,9 @@ start_tracing (char *notes)
}
t->number_on_target = b->number;
for (loc = b->loc; loc; loc = loc->next)
loc->probe->pops->set_semaphore (loc->probe, loc->gdbarch);
}
VEC_free (breakpoint_p, tp_vec);
@ -1851,9 +1856,34 @@ void
stop_tracing (char *note)
{
int ret;
VEC(breakpoint_p) *tp_vec = NULL;
int ix;
struct breakpoint *t;
target_trace_stop ();
tp_vec = all_tracepoints ();
for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, t); ix++)
{
struct bp_location *loc;
if ((t->type == bp_fast_tracepoint
? !may_insert_fast_tracepoints
: !may_insert_tracepoints))
continue;
for (loc = t->loc; loc; loc = loc->next)
{
/* GDB can be totally absent in some disconnected trace scenarios,
but we don't really care if this semaphore goes out of sync.
That's why we are decrementing it here, but not taking care
in other places. */
loc->probe->pops->clear_semaphore (loc->probe, loc->gdbarch);
}
}
VEC_free (breakpoint_p, tp_vec);
if (!note)
note = trace_stop_notes;
ret = target_set_trace_notes (NULL, NULL, note);