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[PATCH 1/4] Change SYMBOL_VALUE_ADDRESS to be an lvalue
- From: Tom Tromey <tromey at adacore dot com>
- To: gdb-patches at sourceware dot org
- Cc: Tom Tromey <tromey at adacore dot com>
- Date: Thu, 27 Jun 2019 08:52:32 -0600
- Subject: [PATCH 1/4] Change SYMBOL_VALUE_ADDRESS to be an lvalue
- References: <20190627145235.21222-1-tromey@adacore.com>
This changes SYMBOL_VALUE_ADDRESS to be an lvalue. The symbol readers
generally assign using this, so this also introduces
SET_SYMBOL_VALUE_ADDRESS and updates the readers. Making this change
is useful in a subsequent patch, which redefined SYMBOL_VALUE_ADDRESS.
gdb/ChangeLog
2019-06-27 Tom Tromey <tromey@adacore.com>
* coffread.c (process_coff_symbol): Update.
* dwarf2read.c (var_decode_location, new_symbol): Update.
* mdebugread.c (parse_symbol): Update.
* objfiles.c (relocate_one_symbol): Update.
* stabsread.c (define_symbol, fix_common_block)
(scan_file_globals): Update.
* symtab.h (SYMBOL_VALUE_ADDRESS): Expand to an lvalue.
(SET_SYMBOL_VALUE_ADDRESS): New macro.
* xcoffread.c (process_xcoff_symbol): Update.
---
gdb/ChangeLog | 12 ++++++++++++
gdb/coffread.c | 14 ++++++++------
gdb/dwarf2read.c | 19 ++++++++++++-------
gdb/mdebugread.c | 6 +++---
gdb/objfiles.c | 4 +++-
gdb/stabsread.c | 22 +++++++++++++---------
gdb/symtab.h | 4 +++-
gdb/xcoffread.c | 6 ++++--
8 files changed, 58 insertions(+), 29 deletions(-)
diff --git a/gdb/coffread.c b/gdb/coffread.c
index 0c7c4b58b6f..5234a84aa2e 100644
--- a/gdb/coffread.c
+++ b/gdb/coffread.c
@@ -1609,9 +1609,10 @@ process_coff_symbol (struct coff_symbol *cs,
case C_THUMBEXTFUNC:
case C_EXT:
SYMBOL_ACLASS_INDEX (sym) = LOC_STATIC;
- SYMBOL_VALUE_ADDRESS (sym) = (CORE_ADDR) cs->c_value;
- SYMBOL_VALUE_ADDRESS (sym) += ANOFFSET (objfile->section_offsets,
- SECT_OFF_TEXT (objfile));
+ SET_SYMBOL_VALUE_ADDRESS (sym,
+ (CORE_ADDR) cs->c_value
+ + ANOFFSET (objfile->section_offsets,
+ SECT_OFF_TEXT (objfile)));
add_symbol_to_list (sym, get_global_symbols ());
break;
@@ -1619,9 +1620,10 @@ process_coff_symbol (struct coff_symbol *cs,
case C_THUMBSTATFUNC:
case C_STAT:
SYMBOL_ACLASS_INDEX (sym) = LOC_STATIC;
- SYMBOL_VALUE_ADDRESS (sym) = (CORE_ADDR) cs->c_value;
- SYMBOL_VALUE_ADDRESS (sym) += ANOFFSET (objfile->section_offsets,
- SECT_OFF_TEXT (objfile));
+ SET_SYMBOL_VALUE_ADDRESS (sym,
+ (CORE_ADDR) cs->c_value
+ + ANOFFSET (objfile->section_offsets,
+ SECT_OFF_TEXT (objfile)));
if (within_function)
{
/* Static symbol of local scope. */
diff --git a/gdb/dwarf2read.c b/gdb/dwarf2read.c
index 85f2b1dfc47..2945a2d090d 100644
--- a/gdb/dwarf2read.c
+++ b/gdb/dwarf2read.c
@@ -21390,15 +21390,20 @@ var_decode_location (struct attribute *attr, struct symbol *sym,
unsigned int dummy;
if (DW_BLOCK (attr)->data[0] == DW_OP_addr)
- SYMBOL_VALUE_ADDRESS (sym) =
- read_address (objfile->obfd, DW_BLOCK (attr)->data + 1, cu, &dummy);
+ SET_SYMBOL_VALUE_ADDRESS (sym,
+ read_address (objfile->obfd,
+ DW_BLOCK (attr)->data + 1,
+ cu, &dummy));
else
- SYMBOL_VALUE_ADDRESS (sym) =
- read_addr_index_from_leb128 (cu, DW_BLOCK (attr)->data + 1, &dummy);
+ SET_SYMBOL_VALUE_ADDRESS
+ (sym, read_addr_index_from_leb128 (cu, DW_BLOCK (attr)->data + 1,
+ &dummy));
SYMBOL_ACLASS_INDEX (sym) = LOC_STATIC;
fixup_symbol_section (sym, objfile);
- SYMBOL_VALUE_ADDRESS (sym) += ANOFFSET (objfile->section_offsets,
- SYMBOL_SECTION (sym));
+ SET_SYMBOL_VALUE_ADDRESS (sym,
+ SYMBOL_VALUE_ADDRESS (sym)
+ + ANOFFSET (objfile->section_offsets,
+ SYMBOL_SECTION (sym)));
return;
}
@@ -21512,7 +21517,7 @@ new_symbol (struct die_info *die, struct type *type, struct dwarf2_cu *cu,
addr = attr_value_as_address (attr);
addr = gdbarch_adjust_dwarf2_addr (gdbarch, addr + baseaddr);
- SYMBOL_VALUE_ADDRESS (sym) = addr;
+ SET_SYMBOL_VALUE_ADDRESS (sym, addr);
}
SYMBOL_TYPE (sym) = objfile_type (objfile)->builtin_core_addr;
SYMBOL_DOMAIN (sym) = LABEL_DOMAIN;
diff --git a/gdb/mdebugread.c b/gdb/mdebugread.c
index 7d0cbb71a91..b81d7c41d67 100644
--- a/gdb/mdebugread.c
+++ b/gdb/mdebugread.c
@@ -632,7 +632,7 @@ parse_symbol (SYMR *sh, union aux_ext *ax, char *ext_sh, int bigend,
b = BLOCKVECTOR_BLOCK (SYMTAB_BLOCKVECTOR (top_stack->cur_st),
GLOBAL_BLOCK);
s = new_symbol (name);
- SYMBOL_VALUE_ADDRESS (s) = (CORE_ADDR) sh->value;
+ SET_SYMBOL_VALUE_ADDRESS (s, (CORE_ADDR) sh->value);
add_data_symbol (sh, ax, bigend, s, LOC_STATIC, b, objfile, name);
break;
@@ -649,7 +649,7 @@ parse_symbol (SYMR *sh, union aux_ext *ax, char *ext_sh, int bigend,
global_sym_chain[bucket] = s;
}
else
- SYMBOL_VALUE_ADDRESS (s) = (CORE_ADDR) sh->value;
+ SET_SYMBOL_VALUE_ADDRESS (s, (CORE_ADDR) sh->value);
add_data_symbol (sh, ax, bigend, s, LOC_STATIC, b, objfile, name);
break;
@@ -706,7 +706,7 @@ parse_symbol (SYMR *sh, union aux_ext *ax, char *ext_sh, int bigend,
s = new_symbol (name);
SYMBOL_DOMAIN (s) = VAR_DOMAIN; /* So that it can be used */
SYMBOL_ACLASS_INDEX (s) = LOC_LABEL; /* but not misused. */
- SYMBOL_VALUE_ADDRESS (s) = (CORE_ADDR) sh->value;
+ SET_SYMBOL_VALUE_ADDRESS (s, (CORE_ADDR) sh->value);
SYMBOL_TYPE (s) = objfile_type (objfile)->builtin_int;
add_symbol (s, top_stack->cur_st, top_stack->cur_block);
break;
diff --git a/gdb/objfiles.c b/gdb/objfiles.c
index b59db591d9f..9f76c184e24 100644
--- a/gdb/objfiles.c
+++ b/gdb/objfiles.c
@@ -711,7 +711,9 @@ relocate_one_symbol (struct symbol *sym, struct objfile *objfile,
|| SYMBOL_CLASS (sym) == LOC_STATIC)
&& SYMBOL_SECTION (sym) >= 0)
{
- SYMBOL_VALUE_ADDRESS (sym) += ANOFFSET (delta, SYMBOL_SECTION (sym));
+ SET_SYMBOL_VALUE_ADDRESS (sym,
+ SYMBOL_VALUE_ADDRESS (sym)
+ + ANOFFSET (delta, SYMBOL_SECTION (sym)));
}
}
diff --git a/gdb/stabsread.c b/gdb/stabsread.c
index a3fe6c99ca3..36b20f2694e 100644
--- a/gdb/stabsread.c
+++ b/gdb/stabsread.c
@@ -942,7 +942,7 @@ define_symbol (CORE_ADDR valu, const char *string, int desc, int type,
SYMBOL_TYPE (sym) = read_type (&p, objfile);
SYMBOL_ACLASS_INDEX (sym) = LOC_LABEL;
SYMBOL_DOMAIN (sym) = VAR_DOMAIN;
- SYMBOL_VALUE_ADDRESS (sym) = valu;
+ SET_SYMBOL_VALUE_ADDRESS (sym, valu);
add_symbol_to_list (sym, get_local_symbols ());
break;
@@ -1188,7 +1188,7 @@ define_symbol (CORE_ADDR valu, const char *string, int desc, int type,
/* Static symbol at top level of file. */
SYMBOL_TYPE (sym) = read_type (&p, objfile);
SYMBOL_ACLASS_INDEX (sym) = LOC_STATIC;
- SYMBOL_VALUE_ADDRESS (sym) = valu;
+ SET_SYMBOL_VALUE_ADDRESS (sym, valu);
if (gdbarch_static_transform_name_p (gdbarch)
&& gdbarch_static_transform_name (gdbarch,
SYMBOL_LINKAGE_NAME (sym))
@@ -1204,7 +1204,8 @@ define_symbol (CORE_ADDR valu, const char *string, int desc, int type,
(gdbarch, SYMBOL_LINKAGE_NAME (sym));
SYMBOL_SET_LINKAGE_NAME (sym, new_name);
- SYMBOL_VALUE_ADDRESS (sym) = BMSYMBOL_VALUE_ADDRESS (msym);
+ SET_SYMBOL_VALUE_ADDRESS (sym,
+ BMSYMBOL_VALUE_ADDRESS (msym));
}
}
SYMBOL_DOMAIN (sym) = VAR_DOMAIN;
@@ -1380,7 +1381,7 @@ define_symbol (CORE_ADDR valu, const char *string, int desc, int type,
/* Static symbol of local scope. */
SYMBOL_TYPE (sym) = read_type (&p, objfile);
SYMBOL_ACLASS_INDEX (sym) = LOC_STATIC;
- SYMBOL_VALUE_ADDRESS (sym) = valu;
+ SET_SYMBOL_VALUE_ADDRESS (sym, valu);
if (gdbarch_static_transform_name_p (gdbarch)
&& gdbarch_static_transform_name (gdbarch,
SYMBOL_LINKAGE_NAME (sym))
@@ -1396,7 +1397,7 @@ define_symbol (CORE_ADDR valu, const char *string, int desc, int type,
(gdbarch, SYMBOL_LINKAGE_NAME (sym));
SYMBOL_SET_LINKAGE_NAME (sym, new_name);
- SYMBOL_VALUE_ADDRESS (sym) = BMSYMBOL_VALUE_ADDRESS (msym);
+ SET_SYMBOL_VALUE_ADDRESS (sym, BMSYMBOL_VALUE_ADDRESS (msym));
}
}
SYMBOL_DOMAIN (sym) = VAR_DOMAIN;
@@ -4368,7 +4369,9 @@ fix_common_block (struct symbol *sym, CORE_ADDR valu)
int j;
for (j = next->nsyms - 1; j >= 0; j--)
- SYMBOL_VALUE_ADDRESS (next->symbol[j]) += valu;
+ SET_SYMBOL_VALUE_ADDRESS (next->symbol[j],
+ SYMBOL_VALUE_ADDRESS (next->symbol[j])
+ + valu);
}
}
@@ -4646,8 +4649,9 @@ scan_file_globals (struct objfile *objfile)
}
else
{
- SYMBOL_VALUE_ADDRESS (sym)
- = MSYMBOL_VALUE_ADDRESS (resolve_objfile, msymbol);
+ SET_SYMBOL_VALUE_ADDRESS
+ (sym, MSYMBOL_VALUE_ADDRESS (resolve_objfile,
+ msymbol));
}
SYMBOL_SECTION (sym) = MSYMBOL_SECTION (msymbol);
}
@@ -4685,7 +4689,7 @@ scan_file_globals (struct objfile *objfile)
/* Change the symbol address from the misleading chain value
to address zero. */
- SYMBOL_VALUE_ADDRESS (prev) = 0;
+ SET_SYMBOL_VALUE_ADDRESS (prev, 0);
/* Complain about unresolved common block symbols. */
if (SYMBOL_CLASS (prev) == LOC_STATIC)
diff --git a/gdb/symtab.h b/gdb/symtab.h
index e4ee7271a15..7b3bb5d3775 100644
--- a/gdb/symtab.h
+++ b/gdb/symtab.h
@@ -463,7 +463,9 @@ extern CORE_ADDR symbol_overlayed_address (CORE_ADDR, struct obj_section *);
field only, instead of the SYMBOL parameter. */
#define SYMBOL_VALUE(symbol) (symbol)->ginfo.value.ivalue
-#define SYMBOL_VALUE_ADDRESS(symbol) (symbol)->ginfo.value.address
+#define SYMBOL_VALUE_ADDRESS(symbol) ((symbol)->ginfo.value.address + 0)
+#define SET_SYMBOL_VALUE_ADDRESS(symbol, new_value) \
+ ((symbol)->ginfo.value.address = (new_value))
#define SYMBOL_VALUE_BYTES(symbol) (symbol)->ginfo.value.bytes
#define SYMBOL_VALUE_COMMON_BLOCK(symbol) (symbol)->ginfo.value.common_block
#define SYMBOL_BLOCK_VALUE(symbol) (symbol)->ginfo.value.block
diff --git a/gdb/xcoffread.c b/gdb/xcoffread.c
index f4892a8054f..028af9a0955 100644
--- a/gdb/xcoffread.c
+++ b/gdb/xcoffread.c
@@ -1576,7 +1576,7 @@ process_xcoff_symbol (struct coff_symbol *cs, struct objfile *objfile)
initialize_objfile_symbol (sym);
/* default assumptions */
- SYMBOL_VALUE_ADDRESS (sym) = cs->c_value + off;
+ SET_SYMBOL_VALUE_ADDRESS (sym, cs->c_value + off);
SYMBOL_DOMAIN (sym) = VAR_DOMAIN;
SYMBOL_SECTION (sym) = secnum_to_section (cs->c_secnum, objfile);
@@ -1675,7 +1675,9 @@ process_xcoff_symbol (struct coff_symbol *cs, struct objfile *objfile)
cs->c_name, 0, 0, objfile);
if (sym != NULL)
{
- SYMBOL_VALUE_ADDRESS (sym) += static_block_base;
+ SET_SYMBOL_VALUE_ADDRESS (sym,
+ SYMBOL_VALUE_ADDRESS (sym)
+ + static_block_base);
SYMBOL_SECTION (sym) = static_block_section;
}
return sym;
--
2.20.1