+2015-11-05 Kevin Buettner <kevinb@redhat.com>
+
+ * lib/gdb.exp (gdb_target_symbol_prefix, gdb_target_symbol):
+ New procs.
+ * lib/dwarf.exp (_handle_DW_TAG): Handle attribute values,
+ representing expressions, of more than one list element.
+ * gdb.dwarf2/atomic-type.exp (Dwarf::assemble): Use gdb_target_symbol
+ to prepend linker symbol prefix to f.
+ * gdb.dwarf2/data-loc.exp (Dwarf::assemble): Likewise, for
+ table_1 and table_2.
+ * gdb.dwarf2/dw2-bad-mips-linkage-name.exp (Dwarf::assemble):
+ Likewise, for f and g.
+ * gdb.dwarf2/dw2-ifort-parameter.exp (Dwarf::assemble): Likewise,
+ for ptr.
+ * gdb.dwarf2/dw2-regno-invalid.exp (Dwarf::assemble): Likewise,
+ for main.
+ * gdb.dwarf2/dynarr-ptr.exp (Dwarf::assemble): Likewise, for
+ table_1_ptr and table_2_ptr.
+
2015-11-03 Jan Kratochvil <jan.kratochvil@redhat.com>
Joel Brobecker <brobecker@adacore.com>
DW_TAG_subprogram {
{name f}
- {low_pc f addr}
+ {low_pc [gdb_target_symbol f] addr}
{high_pc f_end_lbl addr}
{type :$i_l}
} {
{DW_AT_name foo__three}
{DW_AT_type :$array_label}
{DW_AT_location {
- DW_OP_addr table_1
+ DW_OP_addr [gdb_target_symbol table_1]
} SPECIAL_expr}
{external 1 flag}
}
{DW_AT_name foo__three_tdef}
{DW_AT_type :$array_ptr_label}
{DW_AT_location {
- DW_OP_addr table_1
+ DW_OP_addr [gdb_target_symbol table_1]
} SPECIAL_expr}
{external 1 flag}
}
{DW_AT_name foo__five}
{DW_AT_type :$array_label}
{DW_AT_location {
- DW_OP_addr table_2
+ DW_OP_addr [gdb_target_symbol table_2]
} SPECIAL_expr}
{external 1 flag}
}
{DW_AT_name foo__five_tdef}
{DW_AT_type :$array_ptr_label}
{DW_AT_location {
- DW_OP_addr table_2
+ DW_OP_addr [gdb_target_symbol table_2]
} SPECIAL_expr}
{external 1 flag}
}
}
DW_TAG_subprogram {
{name f}
- {low_pc f addr}
+ {low_pc [gdb_target_symbol f] addr}
{high_pc f_end_lbl addr}
{type :$b_l}
{DW_AT_MIPS_linkage_name _Z1fv}
}
DW_TAG_subprogram {
{name g}
- {low_pc g addr}
+ {low_pc [gdb_target_symbol g] addr}
{high_pc g_end_lbl addr}
{type :$b_l}
{DW_AT_MIPS_linkage_name 42 DW_FORM_data1}
{variable_parameter 1 flag}
{type :$int_label}
{location {
- addr ptr
+ addr [gdb_target_symbol ptr]
deref
} SPECIAL_expr}
}
Dwarf::assemble $asm_file {
cu {} {
compile_unit {
- {low_pc main DW_FORM_addr}
- {high_pc main+0x10000 DW_FORM_addr}
+ {low_pc [gdb_target_symbol main] DW_FORM_addr}
+ {high_pc [gdb_target_symbol main]+0x10000 DW_FORM_addr}
} {
declare_labels integer_label
DW_TAG_subprogram {
{name main}
{DW_AT_external 1 flag}
- {low_pc main DW_FORM_addr}
- {high_pc main+0x10000 DW_FORM_addr}
+ {low_pc [gdb_target_symbol main] DW_FORM_addr}
+ {high_pc [gdb_target_symbol main]+0x10000 DW_FORM_addr}
} {
DW_TAG_variable {
{DW_AT_name bregx}
{DW_AT_name foo__three_ptr}
{DW_AT_type :$array_ptr_label}
{DW_AT_location {
- DW_OP_addr table_1_ptr
+ DW_OP_addr [gdb_target_symbol table_1_ptr]
} SPECIAL_expr}
{external 1 flag}
}
{DW_AT_name foo__three_ptr_tdef}
{DW_AT_type :$array_typedef_label}
{DW_AT_location {
- DW_OP_addr table_1_ptr
+ DW_OP_addr [gdb_target_symbol table_1_ptr]
} SPECIAL_expr}
{external 1 flag}
}
{DW_AT_name foo__five_ptr}
{DW_AT_type :$array_ptr_label}
{DW_AT_location {
- DW_OP_addr table_2_ptr
+ DW_OP_addr [gdb_target_symbol table_2_ptr]
} SPECIAL_expr}
{external 1 flag}
}
{DW_AT_name foo__five_ptr_tdef}
{DW_AT_type :$array_typedef_label}
{DW_AT_location {
- DW_OP_addr table_2_ptr
+ DW_OP_addr [gdb_target_symbol table_2_ptr]
} SPECIAL_expr}
{external 1 flag}
}
foreach attr $attrs {
set attr_name [_map_name [lindex $attr 0] _AT]
- set attr_value [uplevel 2 [list subst [lindex $attr 1]]]
+
+ # When the length of ATTR is greater than 2, the last
+ # element of the list must be a form. The second through
+ # the penultimate elements are joined together and
+ # evaluated using subst. This allows constructs such as
+ # [gdb_target_symbol foo] to be used.
+
+ if {[llength $attr] > 2} {
+ set attr_value [uplevel 2 [list subst [join [lrange $attr 1 end-1]]]]
+ } else {
+ set attr_value [uplevel 2 [list subst [lindex $attr 1]]]
+ }
if { [string equal "MACRO_AT_func" $attr_name] } {
_handle_macro_at_func $attr_value
_handle_macro_at_range $attr_value
} else {
if {[llength $attr] > 2} {
- set attr_form [lindex $attr 2]
+ set attr_form [lindex $attr end]
} else {
# If the value looks like an integer, a form is required.
if [string is integer $attr_value] {
return $destcore
}
+# gdb_target_symbol_prefix compiles a test program and then examines
+# the output from objdump to determine the prefix (such as underscore)
+# for linker symbol prefixes.
+
+gdb_caching_proc gdb_target_symbol_prefix {
+ # Set up and compile a simple test program...
+ set src [standard_temp_file main[pid].c]
+ set exe [standard_temp_file main[pid].x]
+
+ gdb_produce_source $src {
+ int main() {
+ return 0;
+ }
+ }
+
+ verbose "compiling testfile $src" 2
+ set compile_flags {debug nowarnings quiet}
+ set lines [gdb_compile $src $exe executable $compile_flags]
+
+ set prefix ""
+
+ if ![string match "" $lines] then {
+ verbose "gdb_target_symbol_prefix: testfile compilation failed, returning null prefix" 2
+ } else {
+ set objdump_program [gdb_find_objdump]
+ set result [catch "exec $objdump_program --syms $exe" output]
+
+ if { $result == 0 \
+ && ![regexp -lineanchor \
+ { ([^ a-zA-Z0-9]*)main$} $output dummy prefix] } {
+ verbose "gdb_target_symbol_prefix: Could not find main in objdump output; returning null prefix" 2
+ }
+ }
+
+ file delete $src
+ file delete $exe
+
+ return $prefix
+}
+
+# gdb_target_symbol returns the provided symbol with the correct prefix
+# prepended. (See gdb_target_symbol_prefix, above.)
+
+proc gdb_target_symbol { symbol } {
+ set prefix [gdb_target_symbol_prefix]
+ return "${prefix}${symbol}"
+}
+
# gdb_target_symbol_prefix_flags returns a string that can be added
# to gdb_compile options to define SYMBOL_PREFIX macro value
# symbol_prefix_flags returns a string that can be added
projects / external / binutils.git / commitdiff