From: Tom Tromey <tom@tromey.com>
To: gdb-patches@sourceware.org
Subject: [PATCH 22/26] Remove last objfile partial_symtab references from psymtab.c
Date: Sun, 28 Feb 2021 13:37:59 -0700 [thread overview]
Message-ID: <20210228203803.1693413-23-tom@tromey.com> (raw)
In-Reply-To: <20210228203803.1693413-1-tom@tromey.com>
This removes the last references to the partial_symtab via the objfile
from psymtab.c. require_partial_symbols is now a method on
psymbol_functions, and maintenance_print_psymbols is changed to use
dynamic_cast to verify that it is examining partial symbols.
gdb/ChangeLog
2021-02-28 Tom Tromey <tom@tromey.com>
* psymtab.c (psymbol_functions::require_partial_symbols): Rename.
(psymbol_functions::find_pc_sect_psymtab): Rename.
(psymbol_functions::find_pc_sect_compunit_symtab)
(maintenance_print_psymbols, maintenance_check_psymtabs): Update.
* psympriv.h (struct psymbol_functions) <require_partial_symbols>:
Declare new method.
<get_partial_symtabs, find_pc_sect_psymtab>: Likewise.
---
gdb/ChangeLog | 10 +++
gdb/psympriv.h | 23 ++++++
gdb/psymtab.c | 210 ++++++++++++++++++++++++++-----------------------
3 files changed, 143 insertions(+), 100 deletions(-)
diff --git a/gdb/psympriv.h b/gdb/psympriv.h
index 8717bd259e1..85651f522d2 100644
--- a/gdb/psympriv.h
+++ b/gdb/psympriv.h
@@ -559,6 +559,18 @@ struct psymbol_functions : public quick_symbol_functions
m_psymbol_map.clear ();
}
+ /* Ensure the partial symbols for OBJFILE have been loaded. Return
+ a range adapter for the psymtabs. */
+ psymtab_storage::partial_symtab_range require_partial_symbols
+ (struct objfile *objfile);
+
+ /* Return the partial symbol storage associated with this
+ object. */
+ const std::shared_ptr<psymtab_storage> &get_partial_symtabs () const
+ {
+ return m_partial_symtabs;
+ }
+
/* Replace the partial symbol table storage in this object with
SYMS. */
void set_partial_symtabs (const std::shared_ptr<psymtab_storage> &syms)
@@ -566,6 +578,17 @@ struct psymbol_functions : public quick_symbol_functions
m_partial_symtabs = syms;
}
+ /* Find which partial symtab contains PC and SECTION. Return NULL if
+ none. We return the psymtab that contains a symbol whose address
+ exactly matches PC, or, if we cannot find an exact match, the
+ psymtab that contains a symbol whose address is closest to PC. */
+
+ struct partial_symtab *find_pc_sect_psymtab
+ (struct objfile *objfile,
+ CORE_ADDR pc,
+ struct obj_section *section,
+ struct bound_minimal_symbol msymbol);
+
private:
void fill_psymbol_map (struct objfile *objfile,
diff --git a/gdb/psymtab.c b/gdb/psymtab.c
index e662ba16cd6..b2f929912ea 100644
--- a/gdb/psymtab.c
+++ b/gdb/psymtab.c
@@ -80,11 +80,11 @@ psymtab_storage::install_psymtab (partial_symtab *pst)
returns a range adapter suitable for iterating over the psymtabs of
OBJFILE. */
-static psymtab_storage::partial_symtab_range
-require_partial_symbols (struct objfile *objfile)
+psymtab_storage::partial_symtab_range
+psymbol_functions::require_partial_symbols (struct objfile *objfile)
{
objfile->require_partial_symbols (true);
- return objfile->psymtabs ();
+ return m_partial_symtabs->range ();
}
/* Helper function for psym_map_symtabs_matching_filename that
@@ -255,17 +255,13 @@ find_pc_sect_psymtab_closer (struct objfile *objfile,
return best_pst;
}
-/* Find which partial symtab contains PC and SECTION. Return NULL if
- none. We return the psymtab that contains a symbol whose address
- exactly matches PC, or, if we cannot find an exact match, the
- psymtab that contains a symbol whose address is closest to PC. */
+/* See psympriv.h. */
-static struct partial_symtab *
-find_pc_sect_psymtab (struct objfile *objfile,
- psymtab_storage *partial_symtabs,
- CORE_ADDR pc,
- struct obj_section *section,
- struct bound_minimal_symbol msymbol)
+struct partial_symtab *
+psymbol_functions::find_pc_sect_psymtab (struct objfile *objfile,
+ CORE_ADDR pc,
+ struct obj_section *section,
+ struct bound_minimal_symbol msymbol)
{
/* Try just the PSYMTABS_ADDRMAP mapping first as it has better
granularity than the later used TEXTLOW/TEXTHIGH one. However, we need
@@ -279,14 +275,14 @@ find_pc_sect_psymtab (struct objfile *objfile,
partial symtabs then we will end up returning a pointer to an object
that is not a partial_symtab, which doesn't end well. */
- if (partial_symtabs->psymtabs != NULL
- && partial_symtabs->psymtabs_addrmap != NULL)
+ if (m_partial_symtabs->psymtabs != NULL
+ && m_partial_symtabs->psymtabs_addrmap != NULL)
{
CORE_ADDR baseaddr = objfile->text_section_offset ();
struct partial_symtab *pst
= ((struct partial_symtab *)
- addrmap_find (partial_symtabs->psymtabs_addrmap,
+ addrmap_find (m_partial_symtabs->psymtabs_addrmap,
pc - baseaddr));
if (pst != NULL)
{
@@ -356,7 +352,6 @@ psymbol_functions::find_pc_sect_compunit_symtab
int warn_if_readin)
{
struct partial_symtab *ps = find_pc_sect_psymtab (objfile,
- m_partial_symtabs.get (),
pc, section,
msymbol);
if (ps != NULL)
@@ -1815,7 +1810,12 @@ maintenance_print_psymbols (const char *args, int from_tty)
if (!print_for_objfile)
continue;
- psymtab_storage *partial_symtabs = objfile->partial_symtabs.get ();
+ psymbol_functions *psf
+ = dynamic_cast<psymbol_functions *> (objfile->qf.get ());
+ if (psf == nullptr)
+ continue;
+
+ psymtab_storage *partial_symtabs = psf->get_partial_symtabs ().get ();
if (address_arg != NULL)
{
@@ -1824,8 +1824,7 @@ maintenance_print_psymbols (const char *args, int from_tty)
/* We don't assume each pc has a unique objfile (this is for
debugging). */
struct partial_symtab *ps
- = find_pc_sect_psymtab (objfile, partial_symtabs, pc,
- section, msymbol);
+ = psf->find_pc_sect_psymtab (objfile, pc, section, msymbol);
if (ps != NULL)
{
if (!printed_objfile_header)
@@ -1841,7 +1840,7 @@ maintenance_print_psymbols (const char *args, int from_tty)
}
else
{
- for (partial_symtab *ps : require_partial_symbols (objfile))
+ for (partial_symtab *ps : psf->require_partial_symbols (objfile))
{
int print_for_source = 0;
@@ -1905,7 +1904,11 @@ maintenance_info_psymtabs (const char *regexp, int from_tty)
actually find a symtab whose name matches. */
int printed_objfile_start = 0;
- for (partial_symtab *psymtab : require_partial_symbols (objfile))
+ psymbol_functions *psf
+ = dynamic_cast<psymbol_functions *> (objfile->qf.get ());
+ if (psf == nullptr)
+ continue;
+ for (partial_symtab *psymtab : psf->require_partial_symbols (objfile))
{
QUIT;
@@ -2005,89 +2008,96 @@ maintenance_check_psymtabs (const char *ignore, int from_tty)
const struct block *b;
for (objfile *objfile : current_program_space->objfiles ())
- for (partial_symtab *ps : require_partial_symbols (objfile))
- {
- struct gdbarch *gdbarch = objfile->arch ();
+ {
+ psymbol_functions *psf
+ = dynamic_cast<psymbol_functions *> (objfile->qf.get ());
+ if (psf == nullptr)
+ continue;
- /* We don't call psymtab_to_symtab here because that may cause symtab
- expansion. When debugging a problem it helps if checkers leave
- things unchanged. */
- cust = ps->get_compunit_symtab (objfile);
+ for (partial_symtab *ps : psf->require_partial_symbols (objfile))
+ {
+ struct gdbarch *gdbarch = objfile->arch ();
- /* First do some checks that don't require the associated symtab. */
- if (ps->text_high (objfile) < ps->text_low (objfile))
- {
- printf_filtered ("Psymtab ");
- puts_filtered (ps->filename);
- printf_filtered (" covers bad range ");
- fputs_filtered (paddress (gdbarch, ps->text_low (objfile)),
- gdb_stdout);
- printf_filtered (" - ");
- fputs_filtered (paddress (gdbarch, ps->text_high (objfile)),
- gdb_stdout);
- printf_filtered ("\n");
- continue;
- }
+ /* We don't call psymtab_to_symtab here because that may cause symtab
+ expansion. When debugging a problem it helps if checkers leave
+ things unchanged. */
+ cust = ps->get_compunit_symtab (objfile);
- /* Now do checks requiring the associated symtab. */
- if (cust == NULL)
- continue;
- bv = COMPUNIT_BLOCKVECTOR (cust);
- b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
- for (partial_symbol *psym : ps->static_psymbols)
- {
- /* Skip symbols for inlined functions without address. These may
- or may not have a match in the full symtab. */
- if (psym->aclass == LOC_BLOCK
- && psym->ginfo.value.address == 0)
+ /* First do some checks that don't require the associated symtab. */
+ if (ps->text_high (objfile) < ps->text_low (objfile))
+ {
+ printf_filtered ("Psymtab ");
+ puts_filtered (ps->filename);
+ printf_filtered (" covers bad range ");
+ fputs_filtered (paddress (gdbarch, ps->text_low (objfile)),
+ gdb_stdout);
+ printf_filtered (" - ");
+ fputs_filtered (paddress (gdbarch, ps->text_high (objfile)),
+ gdb_stdout);
+ printf_filtered ("\n");
continue;
+ }
- sym = block_lookup_symbol (b, psym->ginfo.search_name (),
- symbol_name_match_type::SEARCH_NAME,
- psym->domain);
- if (!sym)
- {
- printf_filtered ("Static symbol `");
- puts_filtered (psym->ginfo.linkage_name ());
- printf_filtered ("' only found in ");
- puts_filtered (ps->filename);
- printf_filtered (" psymtab\n");
- }
- }
- b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
- for (partial_symbol *psym : ps->global_psymbols)
- {
- sym = block_lookup_symbol (b, psym->ginfo.search_name (),
- symbol_name_match_type::SEARCH_NAME,
- psym->domain);
- if (!sym)
- {
- printf_filtered ("Global symbol `");
- puts_filtered (psym->ginfo.linkage_name ());
- printf_filtered ("' only found in ");
- puts_filtered (ps->filename);
- printf_filtered (" psymtab\n");
- }
- }
- if (ps->raw_text_high () != 0
- && (ps->text_low (objfile) < BLOCK_START (b)
- || ps->text_high (objfile) > BLOCK_END (b)))
- {
- printf_filtered ("Psymtab ");
- puts_filtered (ps->filename);
- printf_filtered (" covers ");
- fputs_filtered (paddress (gdbarch, ps->text_low (objfile)),
- gdb_stdout);
- printf_filtered (" - ");
- fputs_filtered (paddress (gdbarch, ps->text_high (objfile)),
- gdb_stdout);
- printf_filtered (" but symtab covers only ");
- fputs_filtered (paddress (gdbarch, BLOCK_START (b)), gdb_stdout);
- printf_filtered (" - ");
- fputs_filtered (paddress (gdbarch, BLOCK_END (b)), gdb_stdout);
- printf_filtered ("\n");
- }
- }
+ /* Now do checks requiring the associated symtab. */
+ if (cust == NULL)
+ continue;
+ bv = COMPUNIT_BLOCKVECTOR (cust);
+ b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
+ for (partial_symbol *psym : ps->static_psymbols)
+ {
+ /* Skip symbols for inlined functions without address. These may
+ or may not have a match in the full symtab. */
+ if (psym->aclass == LOC_BLOCK
+ && psym->ginfo.value.address == 0)
+ continue;
+
+ sym = block_lookup_symbol (b, psym->ginfo.search_name (),
+ symbol_name_match_type::SEARCH_NAME,
+ psym->domain);
+ if (!sym)
+ {
+ printf_filtered ("Static symbol `");
+ puts_filtered (psym->ginfo.linkage_name ());
+ printf_filtered ("' only found in ");
+ puts_filtered (ps->filename);
+ printf_filtered (" psymtab\n");
+ }
+ }
+ b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
+ for (partial_symbol *psym : ps->global_psymbols)
+ {
+ sym = block_lookup_symbol (b, psym->ginfo.search_name (),
+ symbol_name_match_type::SEARCH_NAME,
+ psym->domain);
+ if (!sym)
+ {
+ printf_filtered ("Global symbol `");
+ puts_filtered (psym->ginfo.linkage_name ());
+ printf_filtered ("' only found in ");
+ puts_filtered (ps->filename);
+ printf_filtered (" psymtab\n");
+ }
+ }
+ if (ps->raw_text_high () != 0
+ && (ps->text_low (objfile) < BLOCK_START (b)
+ || ps->text_high (objfile) > BLOCK_END (b)))
+ {
+ printf_filtered ("Psymtab ");
+ puts_filtered (ps->filename);
+ printf_filtered (" covers ");
+ fputs_filtered (paddress (gdbarch, ps->text_low (objfile)),
+ gdb_stdout);
+ printf_filtered (" - ");
+ fputs_filtered (paddress (gdbarch, ps->text_high (objfile)),
+ gdb_stdout);
+ printf_filtered (" but symtab covers only ");
+ fputs_filtered (paddress (gdbarch, BLOCK_START (b)), gdb_stdout);
+ printf_filtered (" - ");
+ fputs_filtered (paddress (gdbarch, BLOCK_END (b)), gdb_stdout);
+ printf_filtered ("\n");
+ }
+ }
+ }
}
void _initialize_psymtab ();
--
2.26.2
next prev parent reply other threads:[~2021-02-28 20:38 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-28 20:37 [PATCH 00/26] Allow multiple "partial" symtab readers per objfile Tom Tromey
2021-02-28 20:37 ` [PATCH 01/26] Move some DWARF code out of symfile.h Tom Tromey
2021-02-28 20:37 ` [PATCH 02/26] Introduce dwarf2/public.h Tom Tromey
2021-02-28 20:37 ` [PATCH 03/26] Change objfile_has_partial_symbols to a method Tom Tromey
2021-02-28 20:37 ` [PATCH 04/26] Change objfile::has_partial_symbols to return bool Tom Tromey
2021-02-28 20:37 ` [PATCH 05/26] Introduce method wrappers for quick_symbol_functions Tom Tromey
2021-03-22 13:52 ` Simon Marchi
2021-02-28 20:37 ` [PATCH 06/26] Move quick_symbol_functions to a new header Tom Tromey
2021-02-28 20:37 ` [PATCH 07/26] Move sym_fns::qf to objfile Tom Tromey
2021-02-28 20:37 ` [PATCH 08/26] Convert quick_symbol_functions to use methods Tom Tromey
2021-02-28 20:37 ` [PATCH 09/26] Move psymbol_map out of objfile Tom Tromey
2021-02-28 20:37 ` [PATCH 10/26] Change how some psymbol readers access the psymtab storage Tom Tromey
2021-02-28 20:37 ` [PATCH 11/26] Do not pass objfile to psymtab_discarder Tom Tromey
2021-02-28 20:37 ` [PATCH 12/26] Set per_bfd->partial_symtabs earlier Tom Tromey
2021-02-28 20:37 ` [PATCH 13/26] Change how DWARF indices use addrmap Tom Tromey
2021-02-28 20:37 ` [PATCH 14/26] Move psymtab statistics printing to psymtab.c Tom Tromey
2021-02-28 20:37 ` [PATCH 15/26] Change how DWARF index writer finds address map Tom Tromey
2021-02-28 20:37 ` [PATCH 16/26] Reference psymtabs via per_bfd in DWARF reader Tom Tromey
2021-02-28 20:37 ` [PATCH 17/26] Attach partial symtab storage to psymbol_functions Tom Tromey
2021-02-28 20:37 ` [PATCH 18/26] Rearrange psymtab_storage construction Tom Tromey
2021-02-28 20:37 ` [PATCH 19/26] Remove sym_fns::sym_read_psymbols Tom Tromey
2021-02-28 20:37 ` [PATCH 20/26] Introduce objfile::require_partial_symbols Tom Tromey
2021-02-28 20:37 ` [PATCH 21/26] Add partial_symtabs parameter to psymtab construction functions Tom Tromey
2021-02-28 20:37 ` Tom Tromey [this message]
2021-02-28 20:38 ` [PATCH 23/26] Change count_psyms to be a method on psymbol_functions Tom Tromey
2021-02-28 20:38 ` [PATCH 24/26] Remove objfile::psymtabs Tom Tromey
2021-02-28 20:38 ` [PATCH 25/26] Switch objfile to hold a list of psymbol readers Tom Tromey
2021-02-28 20:38 ` [PATCH 26/26] Allow multiple partial symbol readers per objfile Tom Tromey
2021-03-20 23:33 ` [PATCH 00/26] Allow multiple "partial" symtab " Tom Tromey
2021-03-22 14:13 ` Simon Marchi
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