2012-04-27 Sergio Durigan Junior <sergiodj@redhat.com>
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
parent
2755f698e1
commit
55aa24fb2e
39 changed files with 4254 additions and 35 deletions
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@ -50,6 +50,14 @@
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#include "xml-syscall.h"
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#include "linux-tdep.h"
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#include "stap-probe.h"
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#include "ax.h"
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#include "ax-gdb.h"
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#include "cli/cli-utils.h"
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#include "parser-defs.h"
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#include "user-regs.h"
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#include <ctype.h>
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#include "features/rs6000/powerpc-32l.c"
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#include "features/rs6000/powerpc-altivec32l.c"
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#include "features/rs6000/powerpc-cell32l.c"
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@ -1276,6 +1284,75 @@ ppc_linux_core_read_description (struct gdbarch *gdbarch,
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}
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}
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/* Implementation of `gdbarch_stap_is_single_operand', as defined in
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gdbarch.h. */
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static int
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ppc_stap_is_single_operand (struct gdbarch *gdbarch, const char *s)
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{
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return (*s == 'i' /* Literal number. */
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|| (isdigit (*s) && s[1] == '('
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&& isdigit (s[2])) /* Displacement. */
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|| (*s == '(' && isdigit (s[1])) /* Register indirection. */
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|| isdigit (*s)); /* Register value. */
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}
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/* Implementation of `gdbarch_stap_parse_special_token', as defined in
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gdbarch.h. */
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static int
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ppc_stap_parse_special_token (struct gdbarch *gdbarch,
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struct stap_parse_info *p)
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{
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if (isdigit (*p->arg))
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{
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/* This temporary pointer is needed because we have to do a lookahead.
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We could be dealing with a register displacement, and in such case
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we would not need to do anything. */
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const char *s = p->arg;
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char *regname;
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int len;
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struct stoken str;
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while (isdigit (*s))
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++s;
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if (*s == '(')
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{
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/* It is a register displacement indeed. Returning 0 means we are
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deferring the treatment of this case to the generic parser. */
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return 0;
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}
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len = s - p->arg;
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regname = alloca (len + 2);
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regname[0] = 'r';
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strncpy (regname + 1, p->arg, len);
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++len;
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regname[len] = '\0';
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if (user_reg_map_name_to_regnum (gdbarch, regname, len) == -1)
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error (_("Invalid register name `%s' on expression `%s'."),
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regname, p->saved_arg);
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write_exp_elt_opcode (OP_REGISTER);
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str.ptr = regname;
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str.length = len;
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write_exp_string (str);
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write_exp_elt_opcode (OP_REGISTER);
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p->arg = s;
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}
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else
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{
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/* All the other tokens should be handled correctly by the generic
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parser. */
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return 0;
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}
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return 1;
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}
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/* Cell/B.E. active SPE context tracking support. */
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@ -1593,6 +1670,15 @@ ppc_linux_init_abi (struct gdbarch_info info,
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/* Get the syscall number from the arch's register. */
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set_gdbarch_get_syscall_number (gdbarch, ppc_linux_get_syscall_number);
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/* SystemTap functions. */
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set_gdbarch_stap_integer_prefix (gdbarch, "i");
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set_gdbarch_stap_register_indirection_prefix (gdbarch, "(");
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set_gdbarch_stap_register_indirection_suffix (gdbarch, ")");
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set_gdbarch_stap_gdb_register_prefix (gdbarch, "r");
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set_gdbarch_stap_is_single_operand (gdbarch, ppc_stap_is_single_operand);
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set_gdbarch_stap_parse_special_token (gdbarch,
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ppc_stap_parse_special_token);
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if (tdep->wordsize == 4)
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{
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/* Until November 2001, gcc did not comply with the 32 bit SysV
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