From 55aa24fb2eb147288fec359a99e960f7136336e8 Mon Sep 17 00:00:00 2001 From: Sergio Durigan Junior Date: Fri, 27 Apr 2012 20:47:57 +0000 Subject: 2012-04-27 Sergio Durigan Junior Tom Tromey Jan Kratochvil * 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) : 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) : New field. * symtab.c (init_sal): Initialize `probe' field. * symtab.h (struct probe): Forward declaration. (struct symtab_and_line) : New field. * tracepoint.c (start_tracing): Adjust semaphore on breakpoints locations. (stop_tracing): Likewise. * xcoffread.c (xcoff_sym_fns): Add `sym_probe_fns' value. --- gdb/cli/cli-utils.c | 41 +++++++++++++++++++++++++++++++++++++++++ gdb/cli/cli-utils.h | 11 +++++++++++ 2 files changed, 52 insertions(+) (limited to 'gdb/cli') diff --git a/gdb/cli/cli-utils.c b/gdb/cli/cli-utils.c index a7b2718..3239a46 100644 --- a/gdb/cli/cli-utils.c +++ b/gdb/cli/cli-utils.c @@ -223,6 +223,18 @@ skip_spaces (char *chp) return chp; } +/* A const-correct version of the above. */ + +const char * +skip_spaces_const (const char *chp) +{ + if (chp == NULL) + return NULL; + while (*chp && isspace (*chp)) + chp++; + return chp; +} + /* See documentation in cli-utils.h. */ char * @@ -245,3 +257,32 @@ remove_trailing_whitespace (const char *start, char *s) return s; } + +/* See documentation in cli-utils.h. */ + +char * +extract_arg (char **arg) +{ + char *result, *copy; + + if (!*arg) + return NULL; + + /* Find the start of the argument. */ + *arg = skip_spaces (*arg); + if (!**arg) + return NULL; + result = *arg; + + /* Find the end of the argument. */ + *arg = skip_to_space (*arg + 1); + + if (result == *arg) + return NULL; + + copy = xmalloc (*arg - result + 1); + memcpy (copy, result, *arg - result); + copy[*arg - result] = '\0'; + + return copy; +} diff --git a/gdb/cli/cli-utils.h b/gdb/cli/cli-utils.h index e23c7d8..5f8a91d 100644 --- a/gdb/cli/cli-utils.h +++ b/gdb/cli/cli-utils.h @@ -94,6 +94,10 @@ extern int number_is_in_list (char *list, int number); extern char *skip_spaces (char *inp); +/* A const-correct version of the above. */ + +extern const char *skip_spaces_const (const char *inp); + /* Skip leading non-whitespace characters in INP, returning an updated pointer. If INP is NULL, return NULL. */ @@ -103,4 +107,11 @@ extern char *skip_to_space (char *inp); START. */ extern char *remove_trailing_whitespace (const char *start, char *s); + +/* A helper function to extract an argument from *ARG. An argument is + delimited by whitespace. The return value is either NULL if no + argument was found, or an xmalloc'd string. */ + +extern char *extract_arg (char **arg); + #endif /* CLI_UTILS_H */ -- cgit v1.1