Commit graph

15 commits

Author SHA1 Message Date
Joel Brobecker
618f726fcb GDB copyright headers update after running GDB's copyright.py script.
gdb/ChangeLog:

        Update year range in copyright notice of all files.
2016-01-01 08:43:22 +04:00
Joel Brobecker
32d0add0a6 Update year range in copyright notice of all files owned by the GDB project.
gdb/ChangeLog:

        Update year range in copyright notice of all files.
2015-01-01 13:32:14 +04:00
Tom Tromey
99f4262f2c fix incorrect comments in minsyms.h
minsyms.h incorrectly claims that a couple of functions call
prim_record_minimal_symbol_full with COPY_NAME=0 -- but actually they
pass 1.  Passing 1 is the correct behavior, so this patch fixes the
documentation.

I'm checking this in as obvious.

2014-06-16  Tom Tromey  <tromey@redhat.com>

	* minsyms.h (prim_record_minimal_symbol)
	(prim_record_minimal_symbol_and_info): Update comments.
2014-06-16 07:53:36 -06:00
Tom Tromey
2273f0ac95 change minsyms not to be relocated at read-time
This removes the runtime offsets from minsyms.  Instead, these offsets
will now be applied whenever the minsym's address is computed.

This patch redefines MSYMBOL_VALUE_ADDRESS to actually use the offsets
from the given objfile.  Then, it updates all the symbol readers,
changing them so that they do not add in the section offset when
creating the symbol.

This change also lets us remove relocation of minsyms from
objfile_relocate1 and also msymbols_sort.

2014-02-26  Tom Tromey  <tromey@redhat.com>

	* minsyms.c (msymbols_sort): Remove.
	* minsyms.h (msymbols_sort): Remove.
	* objfiles.c (objfile_relocate1): Don't relocate minsyms.
	* symtab.h (MSYMBOL_VALUE_ADDRESS): Use objfile offsets.
	* elfread.c (elf_symtab_read): Don't add section offsets.
	* xcoffread.c (record_minimal_symbol): Don't add section offset
	to minimal symbol address.
	* somread.c (text_offset, data_offset): Remove.
	(som_symtab_read): Don't add section offsets to minimal symbol
	addresses.
	* coff-pe-read.c (add_pe_forwarded_sym, read_pe_exported_syms):
	Don't add section offsets to minimal symbols.
	* coffread.c (coff_symtab_read): Don't add section offsets
	to minimal symbol addresses.
	* machoread.c (macho_symtab_add_minsym): Don't add section offset
	to minimal symbol addresses.
	* mipsread.c (read_alphacoff_dynamic_symtab): Don't add
	section offset to minimal symbol addresses.
	* mdebugread.c (parse_partial_symbols): Don't add section
	offset to minimal symbol addresses.
	* dbxread.c (read_dbx_dynamic_symtab): Don't add section
	offset to minimal symbol addresses.
2014-02-26 12:11:17 -07:00
Tom Tromey
3b7344d5ab use bound_minsym as result for lookup_minimal_symbol et al
This patch changes a few minimal symbol lookup functions to return a
bound_minimal_symbol rather than a pointer to the minsym.  This change
helps prepare gdb for computing a minimal symbol's address at the
point of use.

Note that this changes even those functions that ostensibly search a
single objfile.  That was necessary because, in fact, those functions
can search an objfile and its separate debug objfiles; and it is
important for the caller to know in which objfile the minimal symbol
was actually found.

The bulk of this patch is mechanical.

2014-02-26  Tom Tromey  <tromey@redhat.com>

	* ada-lang.c (ada_update_initial_language): Update.
	(ada_main_name, ada_has_this_exception_support): Update.
	* ada-tasks.c (ada_tasks_inferior_data_sniffer): Update.
	* aix-thread.c (pdc_symbol_addrs, pd_enable): Update.
	* arm-tdep.c (arm_skip_stub): Update.
	* auxv.c (ld_so_xfer_auxv): Update.
	* avr-tdep.c (avr_scan_prologue): Update.
	* ax-gdb.c (gen_var_ref): Update.
	* breakpoint.c (struct breakpoint_objfile_data)
	<overlay_msym, longjmp_msym, terminate_msym, exception_msym>: Change
	type to bound_minimal_symbol.
	(create_overlay_event_breakpoint)
	(create_longjmp_master_breakpoint)
	(create_std_terminate_master_breakpoint)
	(create_exception_master_breakpoint): Update.
	* bsd-uthread.c (bsd_uthread_lookup_address): Update.
	* c-exp.y (classify_name): Update.
	* coffread.c (coff_symfile_read): Update.
	* common/agent.c (agent_look_up_symbols): Update.
	* d-lang.c (d_main_name): Update.
	* dbxread.c (find_stab_function_addr, end_psymtab): Update.
	* dec-thread.c (enable_dec_thread): Update.
	* dwarf2loc.c (call_site_to_target_addr): Update.
	* elfread.c (elf_gnu_ifunc_resolve_by_got): Update.
	* eval.c (evaluate_subexp_standard): Update.
	* findvar.c (struct minsym_lookup_data) <result>: Change type
	to bound_minimal_symbol.
	<objfile>: Remove.
	(minsym_lookup_iterator_cb, default_read_var_value): Update.
	* frame.c (inside_main_func): Update.
	* frv-tdep.c (frv_frame_this_id): Update.
	* gcore.c (call_target_sbrk): Update.
	* glibc-tdep.c (glibc_skip_solib_resolver): Update.
	* gnu-v3-abi.c (gnuv3_get_typeid, gnuv3_skip_trampoline):
	Update.
	* go-lang.c (go_main_name): Update.
	* hppa-hpux-tdep.c (hppa_hpux_skip_trampoline_code)
	(hppa_hpux_find_import_stub_for_addr): Update.
	* hppa-tdep.c (hppa_extract_17,	hppa_lookup_stub_minimal_symbol):
	Update.  Change return type.
	* hppa-tdep.h (hppa_lookup_stub_minimal_symbol): Change return
	type.
	* jit.c (jit_breakpoint_re_set_internal): Update.
	* linux-fork.c (inferior_call_waitpid, checkpoint_command):
	Update.
	* linux-nat.c (get_signo): Update.
	* linux-thread-db.c (inferior_has_bug): Update
	* m32c-tdep.c (m32c_return_value)
	(m32c_m16c_address_to_pointer): Update.
	* m32r-tdep.c (m32r_frame_this_id): Update.
	* m68hc11-tdep.c (m68hc11_get_register_info): Update.
	* machoread.c (macho_resolve_oso_sym_with_minsym): Update.
	* minsyms.c (lookup_minimal_symbol_internal): Rename to
	lookup_minimal_symbol.  Change return type.
	(lookup_minimal_symbol): Remove.
	(lookup_bound_minimal_symbol): Update.
	(lookup_minimal_symbol_text): Change return type.
	(lookup_minimal_symbol_solib_trampoline): Change return type.
	* minsyms.h (lookup_minimal_symbol, lookup_minimal_symbol_text)
	(lookup_minimal_symbol_solib_trampoline): Change return type.
	* mips-linux-tdep.c (mips_linux_skip_resolver): Update.
	* objc-lang.c (lookup_objc_class, lookup_child_selector)
	(value_nsstring, find_imps): Update.
	* obsd-tdep.c (obsd_skip_solib_resolver): Update.
	* p-lang.c (pascal_main_name): Update.
	* ppc-linux-tdep.c (ppc_linux_spe_context_lookup): Update.
	* ppc-sysv-tdep.c (convert_code_addr_to_desc_addr): Update.
	* proc-service.c (ps_pglobal_lookup): Update.
	* ravenscar-thread.c (get_running_thread_msymbol): Change
	return type.
	(has_ravenscar_runtime, get_running_thread_id): Update.
	* remote.c (remote_check_symbols): Update.
	* sol-thread.c (ps_pglobal_lookup): Update.
	* sol2-tdep.c (sol2_skip_solib_resolver): Update.
	* solib-dsbt.c (lm_base): Update.
	* solib-frv.c (lm_base, frv_relocate_section_addresses):
	Update.
	* solib-irix.c (locate_base): Update.
	* solib-som.c (som_solib_create_inferior_hook)
	(som_solib_desire_dynamic_linker_symbols, link_map_start):
	Update.
	* solib-spu.c (spu_enable_break): Update.
	* solib-svr4.c (elf_locate_base, enable_break): Update.
	* spu-tdep.c (spu_get_overlay_table, spu_catch_start)
	(flush_ea_cache): Update.
	* stabsread.c (define_symbol): Update.
	* symfile.c (simple_read_overlay_table): Update.
	* symtab.c (find_pc_sect_line): Update.
	* tracepoint.c (scope_info): Update.
	* tui-disasm.c (tui_get_begin_asm_address): Update.
	* value.c (value_static_field): Update.
2014-02-26 12:11:17 -07:00
Tom Tromey
50e65b1713 introduce minimal_symbol_upper_bound
This introduces minimal_symbol_upper_bound and changes various bits of
code to use it.  Since this function is intimately tied to the
implementation of minimal symbol tables, I believe it belongs in
minsyms.c.

The new function is extracted from find_pc_partial_function_gnu_ifunc.
This isn't a "clean" move because the old function interleaved the
caching and the computation; but this doesn't make sense for the new
code.

2014-02-26  Tom Tromey  <tromey@redhat.com>

	* blockframe.c (find_pc_partial_function_gnu_ifunc): Use
	bound minimal symbols.  Move code that knows about minsym
	table layout...
	* minsyms.c (minimal_symbol_upper_bound): ... here.  New
	function.
	* minsyms.h (minimal_symbol_upper_bound): Declare.
	* objc-lang.c (find_objc_msgsend): Use bound minimal symbols,
	minimal_symbol_upper_bound.
2014-02-26 12:11:16 -07:00
Joel Brobecker
ecd75fc8ee Update Copyright year range in all files maintained by GDB. 2014-01-01 07:54:24 +04:00
Tom Tromey
7c7b66552d remove msymbol_objfile
This is another patch in my ongoing series to "split" objfile to share
more read-only data across inferiors.  See

    http://sourceware.org/gdb/wiki/ObjfileSplitting

When symbols are finally shared, there will be no back-link from the
symbol to its containing objfile, because there may be more than one
such objfile.  So, all such back-links must be removed.

One hidden back-link is the msymbol_objfile function.  Since
(eventually) a symbol may appear in more than one objfile, trying to
look up the objfile given just a symbol cannot work.

This patch removes msymbol_objfile in favor of using a bound minimal
symbol.  It introduces a new function to make this conversion simpler
in some spots.

The bonus of this patch is that using msymbol_objfile is slower than
simply looking up the owning objfile in the first place.

Built and regtested on x86-64 Fedora 18.

	* ada-exp.y (write_var_or_type): Use bound_minimal_symbol.
	* ada-lang.c (ada_lookup_simple_minsym): Return
	bound_minimal_symbol.
	* ada-lang.h (ada_lookup_simple_minsym): Update.
	* c-exp.y (variable): Use lookup_bound_minimal_symbol.
	* f-exp.y (variable): Use lookup_bound_minimal_symbol.
	* go-exp.y (variable): Use lookup_bound_minimal_symbol.
	* jv-exp.y (push_expression_name): Use lookup_bound_minimal_symbol.
	* m2-exp.y (variable): Use lookup_bound_minimal_symbol.
	* minsyms.c (msymbol_objfile): Remove.
	(lookup_minimal_symbol_internal): New function, from
	lookup_minimal_symbol.
	(lookup_minimal_symbol): Rewrite using
	lookup_minimal_symbol_internal.
	(lookup_bound_minimal_symbol): New function.
	* minsyms.h (msymbol_objfile): Remove.
	(lookup_bound_minimal_symbol): Declare.
	* p-exp.y (variable): Use lookup_bound_minimal_symbol.
	* parse.c (write_exp_msymbol): Change parameter to a
	bound_minimal_symbol.
	(write_dollar_variable): Use lookup_bound_minimal_symbol.
	* parser-defs.h (write_exp_msymbol): Update.
	* printcmd.c (address_info): Use lookup_bound_minimal_symbol.
	* symfile.c (simple_read_overlay_table): Use
	lookup_bound_minimal_symbol.
	* symtab.c (skip_prologue_sal): Don't use msymbol_objfile.
	(search_symbols): Likewise.
	(print_msymbol_info): Take a bound_minimal_symbol argument.
	(symtab_symbol_info, rbreak_command): Update.
	* symtab.h (struct symbol_search) <msymbol>: Change type
	to bound_minimal_symbol.
	* valops.c (find_function_in_inferior): Use
	lookup_bound_minimal_symbol.
	* value.c (value_fn_field): Use lookup_bound_minimal_symbol.
2013-08-05 15:51:02 +00:00
Tom Tromey
e6dc44a8f5 * coffread.c (record_minimal_symbol): Update.
* dbxread.c (record_minimal_symbol): Update.
	* elfread.c (record_minimal_symbol): Update.
	* machoread.c (macho_symtab_add_minsym): Update.
	* mdebugread.c (record_minimal_symbol, parse_partial_symbols):
	Update.
	* minsyms.c (prim_record_minimal_symbol): Update.
	(prim_record_minimal_symbol_full): Remove 'bfd_section'
	argument.
	(prim_record_minimal_symbol_and_info): Likewise.
	* minsyms.h (prim_record_minimal_symbol_full)
	(prim_record_minimal_symbol_and_info): Update.
	* symtab.c (allocate_symbol, initialize_symbol)
	(allocate_template_symbol): Initialize SYMBOL_SECTION.
	* xcoffread.c (record_minimal_symbol, scan_xcoff_symtab):
	Update.
2013-04-08 20:13:22 +00:00
Tom Tromey
7cbd4a934e * minsyms.h (struct bound_minimal_symbol): New.
(lookup_minimal_symbol_and_objfile): Return bound_minimal_symbol.
	Remove objfile argument.
	(lookup_minimal_symbol_by_pc_section, lookup_minimal_symbol_by_pc):
	Return bound_minimal_symbol.
	* minsyms.c (lookup_minimal_symbol_by_pc_1)
	(lookup_minimal_symbol_by_pc_section, lookup_minimal_symbol_by_pc):
	Return bound_minimal_symbol.
	(in_gnu_ifunc_stub): Update.
	(lookup_minimal_symbol_and_objfile): Return bound_minimal_symbol.
	Remove 'objfile_p' argument.
	(lookup_solib_trampoline_symbol_by_pc): Update.
	* ada-tasks.c, amd64-windows-tdep.c, arm-tdep.c,
	arm-wince-tdep.c, block.c, blockframe.c, breakpoint.c, btrace.c,
	c-valprint.c, dwarf2loc.c, elfread.c, frame.c, frv-tdep.c,
	glibc-tdep.c, gnu-v2-abi.c, gnu-v3-abi.c, hppa-hpux-tdep.c,
	i386-tdep.c, ia64-tdep.c, infcall.c, infcmd.c, jit.c,
	linux-fork.c, m32c-tdep.c, m68hc11-tdep.c, maint.c,
	mips-tdep.c, p-valprint.c, parse.c, ppc-linux-tdep.c,
	ppc-sysv-tdep.c, printcmd.c, rs6000-tdep.c, sh64-tdep.c,
	stack.c, symtab.c, tui/tui-disasm.c: Update.
2013-04-08 19:59:09 +00:00
Joel Brobecker
28e7fd6234 Update years in copyright notice for the GDB files.
Two modifications:
  1. The addition of 2013 to the copyright year range for every file;
  2. The use of a single year range, instead of potentially multiple
     year ranges, as approved by the FSF.
2013-01-01 06:33:28 +00:00
Tom Tromey
c9630d9c13 * minsyms.c (lookup_solib_trampoline_symbol_by_pc): Now static.
* minsyms.h (lookup_solib_trampoline_symbol_by_pc): Don't
	declare.
2012-12-18 19:21:53 +00:00
Joel Brobecker
0b30217134 Copyright year update in most files of the GDB Project.
gdb/ChangeLog:

        Copyright year update in most files of the GDB Project.
2012-01-04 08:17:56 +00:00
Tom Tromey
b19686e08b * minsyms.h: Rearrange. Document header and all functions.
* minsyms.c: Move some comments to minsyms.h.
2011-12-22 02:34:34 +00:00
Tom Tromey
c35384fbef * symtab.h: Include minsyms.h.
(prim_record_minimal_symbol, prim_record_minimal_symbol_full)
	(prim_record_minimal_symbol_and_info, msymbol_hash_iw)
	(msymbol_hash, SYMBOL_HASH_NEXT, msymbol_objfile)
	(lookup_minimal_symbol, lookup_minimal_symbol_text)
	(lookup_minimal_symbol_solib_trampoline)
	(lookup_minimal_symbol_by_pc_name, lookup_minimal_symbol_by_pc)
	(iterate_over_minimal_symbols, lookup_minimal_symbol_and_objfile)
	(lookup_minimal_symbol_by_pc_section)
	(lookup_solib_trampoline_symbol_by_pc)
	(init_minimal_symbol_collection)
	(make_cleanup_discard_minimal_symbols, install_minimal_symbols)
	(msymbols_sort): Move to minsyms.h.
	* objfiles.c (terminate_minimal_symbol_table): Move to minsyms.c.
	* minsyms.c (terminate_minimal_symbol_table): Move from
	objfiles.c.
	* minsyms.h: New file.
2011-12-21 21:51:57 +00:00