| /* |
| * Copyright (c) 2021-2025 Symas Corporation |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of the Symas Corporation nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| // cppcheck-suppress-file duplicateBreak |
| |
| #include "cobol-system.h" |
| #include "coretypes.h" |
| #include "tree.h" |
| #include "../../libgcobol/ec.h" |
| #include "../../libgcobol/common-defs.h" |
| #include "util.h" |
| #include "cbldiag.h" |
| #include "symbols.h" |
| #include "gengen.h" |
| #include "inspect.h" |
| #include "../../libgcobol/io.h" |
| #include "genapi.h" |
| #include "genutil.h" |
| #include "structs.h" |
| #include "../../libgcobol/gcobolio.h" |
| #include "../../libgcobol/charmaps.h" |
| #include "show_parse.h" |
| #include "../../libgcobol/exceptl.h" |
| #include "exceptg.h" |
| |
| bool internal_codeset_is_ebcdic() { return gcobol_feature_internal_ebcdic(); } |
| |
| bool exception_location_active = true; |
| bool skip_exception_processing = true; |
| |
| bool suppress_dest_depends = false; |
| |
| std::vector<std::string>current_filename; |
| |
| tree var_decl_exception_code; // int __gg__exception_code; |
| tree var_decl_exception_file_status; // int __gg__exception_file_status; |
| tree var_decl_exception_file_name; // const char *__gg__exception_file_name; |
| tree var_decl_exception_statement; // const char *__gg__exception_statement; |
| tree var_decl_exception_source_file; // const char *__gg__exception_source_file; |
| tree var_decl_exception_line_number; // int __gg__exception_line_number; |
| tree var_decl_exception_program_id; // const char *__gg__exception_program_id; |
| tree var_decl_exception_section; // const char *__gg__exception_section; |
| tree var_decl_exception_paragraph; // const char *__gg__exception_paragraph; |
| |
| tree var_decl_default_compute_error; // int __gg__default_compute_error; |
| tree var_decl_rdigits; // int __gg__rdigits; |
| tree var_decl_unique_prog_id; // size_t __gg__unique_prog_id; |
| |
| tree var_decl_entry_location; // This is for managing ENTRY statements |
| tree var_decl_exit_address; // This is for implementing pseudo_return_pop |
| |
| tree var_decl_call_parameter_signature; // char *__gg__call_parameter_signature |
| tree var_decl_call_parameter_count; // int __gg__call_parameter_count |
| tree var_decl_call_parameter_lengths; // size_t *__gg__call_parameter_count |
| |
| tree var_decl_return_code; // short __gg__data_return_code |
| |
| tree var_decl_arithmetic_rounds_size; // size_t __gg__arithmetic_rounds_size; |
| tree var_decl_arithmetic_rounds; // int* __gg__arithmetic_rounds; |
| tree var_decl_fourplet_flags_size; // size_t __gg__fourplet_flags_size; |
| tree var_decl_fourplet_flags; // int* __gg__fourplet_flags; |
| |
| tree var_decl_treeplet_1f; // cblc_field_pp_type_node , "__gg__treeplet_1f" |
| tree var_decl_treeplet_1o; // SIZE_T_P , "__gg__treeplet_1o" |
| tree var_decl_treeplet_1s; // SIZE_T_P , "__gg__treeplet_1s" |
| tree var_decl_treeplet_2f; // cblc_field_pp_type_node , "__gg__treeplet_2f" |
| tree var_decl_treeplet_2o; // SIZE_T_P , "__gg__treeplet_2o" |
| tree var_decl_treeplet_2s; // SIZE_T_P , "__gg__treeplet_2s" |
| tree var_decl_treeplet_3f; // cblc_field_pp_type_node , "__gg__treeplet_3f" |
| tree var_decl_treeplet_3o; // SIZE_T_P , "__gg__treeplet_3o" |
| tree var_decl_treeplet_3s; // SIZE_T_P , "__gg__treeplet_3s" |
| tree var_decl_treeplet_4f; // cblc_field_pp_type_node , "__gg__treeplet_4f" |
| tree var_decl_treeplet_4o; // SIZE_T_P , "__gg__treeplet_4o" |
| tree var_decl_treeplet_4s; // SIZE_T_P , "__gg__treeplet_4s" |
| |
| // There are times when I need to insert a NOP into the code, mainly to force |
| // a .loc directive into the assembly language so that the GDB-COBOL debugger |
| // can show the COBOL source code. This is true, for example, the CONTINUE |
| // statement which otherwise would produce no assembly language. Since I |
| // wasn't successful figuring out how to create an actual NOP assembly language |
| // instruction, I instead gg_assign(var_decl_nop, integer_zero_node) |
| tree var_decl_nop; // int __gg__nop; |
| tree var_decl_main_called; // int __gg__main_called; |
| |
| #if 0 |
| #define REFER(a) |
| #else |
| #define REFER(a) do \ |
| { \ |
| if( getenv("REFER") ) \ |
| { \ |
| fprintf(stderr, "REFER %s %s\n", __func__, a); \ |
| } \ |
| }while(0); |
| #endif |
| |
| int |
| get_scaled_rdigits(cbl_field_t *field) |
| { |
| int retval; |
| if( !(field->attr & scaled_e) ) |
| { |
| // The value is not P-scaled, so we just use the unchanged rdigits value |
| retval = field->data.rdigits; |
| } |
| else |
| { |
| if( field->data.rdigits < 0 ) |
| { |
| // The PIC string was something like 999PPPP, which means an rdigits value |
| // of -4. We return zero; somebody else will have the job of multiplying |
| // the three significant digits by 10^4 to get the magnitude correct. |
| retval = 0; |
| } |
| else |
| { |
| // The PIC string was something like PPPP999, which means an rdigits value |
| // of +4. We return an rdigits value of 4 + 3 = 7, which will mean that |
| // the three significant digits will be scaled to 0.0000999 |
| retval = field->data.digits + field->data.rdigits; |
| } |
| } |
| return retval; |
| } |
| |
| int |
| get_scaled_digits(cbl_field_t *field) |
| { |
| int retval; |
| if( !(field->attr & scaled_e) ) |
| { |
| // The value is not P-scaled, so we just use the unchanged rdigits value |
| retval = field->data.digits; |
| } |
| else |
| { |
| if( field->data.rdigits < 0 ) |
| { |
| // The PIC string was something like 999PPPP, which means an rdigits value |
| // of -4. digits is 3, reflecting the 9(3). We return seven, reflecting |
| // that all of the final digits are to the left of the decimal point |
| retval = field->data.digits - field->data.rdigits; |
| } |
| else |
| { |
| // The PIC string was something like PPPP999, which means an rdigits value |
| // of +4. We return and rdigits value of 4 + 3 = 7, which will mean that |
| // the three significant digits will be scaled to 0.0000999 and all of the |
| // seven digits are to the left of the decimal point |
| retval = field->data.digits + field->data.rdigits; |
| } |
| } |
| return retval; |
| } |
| |
| tree |
| tree_type_from_digits(size_t digits, int signable) |
| { |
| tree retval = NULL_TREE; |
| |
| if( signable ) |
| { |
| if(digits <= 2 ) |
| { |
| retval = CHAR; |
| } |
| else if (digits <= 4 ) |
| { |
| retval = SHORT; |
| } |
| else if (digits <= 9 ) |
| { |
| retval = INT; |
| } |
| else if (digits <= 18 ) |
| { |
| retval = LONGLONG; |
| } |
| else |
| { |
| retval = INT128; |
| } |
| } |
| else |
| { |
| if(digits <= 2 ) |
| { |
| retval = UCHAR; |
| } |
| else if (digits <= 4 ) |
| { |
| retval = USHORT; |
| } |
| else if (digits <= 9 ) |
| { |
| retval = UINT; |
| } |
| else if (digits <= 18 ) |
| { |
| retval = ULONGLONG; |
| } |
| else |
| { |
| retval = UINT128; |
| } |
| } |
| return retval; |
| } |
| |
| void |
| get_integer_value(tree value, // We know this is a LONG |
| cbl_field_t *field, |
| tree offset, |
| bool check_for_fractional_digits) |
| { |
| if( field->type == FldLiteralN && field->data.rdigits==0 ) |
| { |
| gg_assign(value, gg_cast(LONG, field->data_decl_node)); |
| return; |
| } |
| |
| Analyze(); |
| // Call this routine when you know the result has to be an integer with no |
| // rdigits. This routine became necessary the first time I saw an |
| // intermediate value for an array subscript: table((3 + 1) / 2)) |
| // |
| // If the field_i has rdigits, and if any of those rdigits are non-zero, we |
| // return a 1 so that our caller can decide what to do. |
| |
| static tree temp = gg_define_variable(INT128, "..giv_temp", vs_file_static); |
| static tree rdigits = gg_define_variable(INT, "..giv_rdigits", vs_file_static); |
| |
| if( field->attr & intermediate_e ) |
| { |
| // Get the binary value, which for 99V99 can be 1234, meaning 12.34 |
| get_binary_value(temp, NULL, field, offset); |
| |
| // Pick up the run-time number of rdigits: |
| gg_assign(rdigits, gg_cast(INT, member(field, "rdigits"))); |
| |
| // Scale by the number of rdigits, which turns 12.34 into 12. |
| // When check_for_fractional_digits is true, __gg__rdigits will be set |
| // to 1 for 12.34, and will be set to zero 12.00 |
| scale_by_power_of_ten(temp, |
| gg_negate(rdigits), |
| check_for_fractional_digits); |
| } |
| else |
| { |
| get_binary_value(temp, rdigits, field, offset); |
| scale_by_power_of_ten_N(temp, |
| -get_scaled_rdigits(field), |
| check_for_fractional_digits); |
| } |
| gg_assign(value, gg_cast(TREE_TYPE(value), temp)); |
| } |
| |
| static |
| tree // This is a SIZE_T |
| get_any_capacity(cbl_field_t *field) |
| { |
| if( field->attr & (any_length_e | intermediate_e) ) |
| { |
| return member(field->var_decl_node, "capacity"); |
| } |
| else |
| { |
| return build_int_cst_type(SIZE_T, field->data.capacity); |
| } |
| } |
| |
| /* This routine, used by both get_data_offset and refer_refmod_length, |
| fetches the refmod_from and refmod_length. If ec-bound-ref-mod checking |
| is enabled, it does those checks and sets the exception condition when they |
| are violated. |
| |
| The return value for refstart is the actual offset, that is val(7:3) returns |
| the value 7-1, that is, 6. |
| */ |
| static |
| void |
| get_and_check_refstart_and_reflen( tree refstart,// LONG returned value |
| tree reflen, // LONG returned value |
| const cbl_refer_t &refer) |
| { |
| const cbl_enabled_exceptions_t& |
| enabled_exceptions( cdf_enabled_exceptions() ); |
| |
| if( !enabled_exceptions.match(ec_bound_ref_mod_e) ) |
| { |
| // This is normal operation -- no exception checking. Thus, we won't |
| // be trying to check for boundaries or integerness. And the programmer |
| // is accepting the responsibility for bad code: "If you specify |
| // disaster, disaster is what you get." |
| |
| get_integer_value(refstart, |
| refer.refmod.from->field, |
| refer_offset(*refer.refmod.from)); |
| gg_decrement(refstart); |
| |
| if( refer.refmod.len ) |
| { |
| // The length was specified, so that's what we return: |
| get_integer_value(reflen, |
| refer.refmod.len->field, |
| refer_offset(*refer.refmod.len)); |
| } |
| else |
| { |
| // The length was not specified, so we need to return the distance |
| // between refmod.from and the end of the field: |
| gg_assign(reflen, gg_subtract( get_any_capacity(refer.field), refstart) ); |
| } |
| return; |
| } |
| |
| // ec_bound_ref_mode_e checking is enabled: |
| |
| get_integer_value(refstart, |
| refer.refmod.from->field, |
| refer_offset(*refer.refmod.from), |
| CHECK_FOR_FRACTIONAL_DIGITS); |
| |
| IF( var_decl_rdigits, |
| ne_op, |
| integer_zero_node ) |
| { |
| // The value for refstart had non-zero decimal places. This is an |
| // error condition: |
| set_exception_code(ec_bound_ref_mod_e); |
| gg_assign(refstart, gg_cast(LONG, integer_one_node)); |
| gg_assign(var_decl_rdigits, integer_zero_node); |
| } |
| ELSE |
| ENDIF |
| |
| // Make refstart zero-based: |
| gg_decrement(refstart); |
| |
| IF( refstart, lt_op, build_int_cst_type(LONG, 0 ) ) |
| { |
| // A negative value for refstart is an error condition: |
| set_exception_code(ec_bound_ref_mod_e); |
| gg_assign(refstart, gg_cast(LONG, integer_zero_node)); |
| // Set reflen to one here, because otherwise it won't be established. |
| gg_assign(reflen, gg_cast(TREE_TYPE(reflen), integer_one_node)); |
| } |
| ELSE |
| { |
| IF( refstart, gt_op, gg_cast(TREE_TYPE(refstart), get_any_capacity(refer.field)) ) |
| { |
| // refstart greater than zero is an error condition: |
| set_exception_code(ec_bound_ref_mod_e); |
| gg_assign(refstart, gg_cast(LONG, integer_zero_node)); |
| // Set reflen to one here, because otherwise it won't be established. |
| gg_assign(reflen, gg_cast(TREE_TYPE(reflen), integer_one_node)); |
| } |
| ELSE |
| { |
| if( refer.refmod.len ) |
| { |
| get_integer_value(reflen, |
| refer.refmod.len->field, |
| refer_offset(*refer.refmod.len), |
| CHECK_FOR_FRACTIONAL_DIGITS); |
| IF( var_decl_rdigits, |
| ne_op, |
| integer_zero_node ) |
| { |
| // length is not an integer, which is an error condition |
| set_exception_code(ec_bound_ref_mod_e); |
| gg_assign(reflen, gg_cast(LONG, integer_one_node)); |
| gg_assign(var_decl_rdigits, integer_zero_node); |
| } |
| ELSE |
| { |
| // The length is an integer, so we can keep going. |
| IF( reflen, lt_op, gg_cast(LONG, integer_one_node) ) |
| { |
| // length is too small, which is an error condition. |
| set_exception_code(ec_bound_ref_mod_e); |
| gg_assign(reflen, gg_cast(LONG, integer_one_node)); |
| } |
| ELSE |
| { |
| IF( gg_add(refstart, reflen), |
| gt_op, |
| gg_cast(TREE_TYPE(refstart), get_any_capacity(refer.field)) ) |
| { |
| // Start + Length is too large, which yet again is an error |
| // condition |
| set_exception_code(ec_bound_ref_mod_e); |
| |
| // Our intentions are honorable. But at this point, where |
| // we notice that start + length is too long, the |
| // get_data_offset routine has already been run and |
| // it's too late to actually change the refstart. There are |
| // theoretical solutions to this -- mainly, |
| // get_data_offset needs to check the start + len for |
| // validity. But I am not going to do it now. Think of this |
| // as the TODO item. |
| gg_assign(refstart, gg_cast(LONG, integer_zero_node)); |
| gg_assign(reflen, gg_cast(LONG, integer_one_node)); |
| } |
| ELSE |
| { |
| // There are no problems, so there is no error condition, and |
| // refstart and reflen are correct. |
| } |
| ENDIF |
| } |
| ENDIF |
| } |
| ENDIF |
| } |
| else |
| { |
| // There is no refmod length, so we default to the remaining characters |
| gg_assign(reflen, gg_subtract(get_any_capacity(refer.field), |
| refstart)); |
| } |
| } |
| ENDIF |
| } |
| ENDIF |
| } |
| |
| void |
| get_depending_on_value_from_odo(tree retval, cbl_field_t *odo) |
| { |
| /* This routine, called only when we know there is an OCCURS DEPENDING ON |
| clause, returns the current value of the DEPENDING ON variable. When |
| ec_bound_odo_e is turned on, and there is any kind of ec-bound-odo |
| error condition, the value returned is occurs.bounds.lower. |
| |
| This should ensure that there is no memory violation in the event of a |
| declarative with a RESUME NEXT STATEMENT, or before the default_condition |
| processing can do a controlled exit. |
| */ |
| const cbl_enabled_exceptions_t& |
| enabled_exceptions( cdf_enabled_exceptions() ); |
| cbl_field_t *depending_on; |
| depending_on = cbl_field_of(symbol_at(odo->occurs.depending_on)); |
| |
| if( !enabled_exceptions.match(ec_bound_odo_e) ) |
| { |
| // With no exception testing, just pick up the value. If there is a |
| // the programmer will simply have to live with the consequences. |
| get_integer_value(retval, |
| depending_on, |
| NULL); |
| return; |
| } |
| |
| // Bounds checking is enabled, so we test the DEPENDING ON value to be |
| // between the lower and upper OCCURS limits: |
| get_integer_value(retval, |
| depending_on, |
| NULL, |
| CHECK_FOR_FRACTIONAL_DIGITS); |
| |
| IF( var_decl_rdigits, ne_op, integer_zero_node ) |
| { |
| // This needs to evaluate to an integer |
| set_exception_code(ec_bound_odo_e); |
| gg_assign(retval, build_int_cst_type( TREE_TYPE(retval), |
| odo->occurs.bounds.lower)); |
| gg_assign(var_decl_rdigits, integer_zero_node); |
| } |
| ELSE |
| ENDIF |
| |
| IF( retval, gt_op, build_int_cst_type(TREE_TYPE(retval), |
| odo->occurs.bounds.upper) ) |
| { |
| set_exception_code(ec_bound_odo_e); |
| gg_assign(retval, build_int_cst_type( TREE_TYPE(retval), |
| odo->occurs.bounds.lower)); |
| } |
| ELSE |
| { |
| IF( retval, lt_op, build_int_cst_type(TREE_TYPE(retval), |
| odo->occurs.bounds.lower) ) |
| { |
| set_exception_code(ec_bound_odo_e); |
| gg_assign(retval, build_int_cst_type( TREE_TYPE(retval), |
| odo->occurs.bounds.lower)); |
| } |
| ELSE |
| ENDIF |
| IF( retval, lt_op, gg_cast(TREE_TYPE(retval), integer_zero_node) ) |
| { |
| set_exception_code(ec_bound_odo_e); |
| gg_assign(retval, gg_cast(TREE_TYPE(retval), integer_zero_node)); |
| } |
| ELSE |
| ENDIF |
| } |
| ENDIF |
| } |
| |
| static |
| void |
| get_depending_on_value(tree retval, const cbl_refer_t &refer) |
| { |
| /* This routine, called only when we know there is an OCCURS DEPENDING ON |
| clause, returns the current value of the DEPENDING ON variable. When |
| ec_bound_odo_e is turned on, and there is any kind of ec-bound-odo |
| error condition, the value returned is occurs.bounds.lower. |
| |
| This should ensure that there is no memory violation in the event of a |
| declarative with a RESUME NEXT STATEMENT, or before the default_condition |
| processing can do a controlled exit. |
| */ |
| cbl_field_t *odo = symbol_find_odo(refer.field); |
| get_depending_on_value_from_odo(retval, odo); |
| } |
| |
| static |
| tree |
| get_data_offset(const cbl_refer_t &refer, |
| int *pflags = NULL) |
| { |
| Analyze(); |
| // This routine returns a tree which is the size_t offset to the data in the |
| // refer/field |
| |
| // Because this is for source / sending variables, checks are made for |
| // OCCURS DEPENDING ON violations (when those exceptions are enabled) |
| |
| tree retval = gg_define_variable(SIZE_T); |
| gg_assign(retval, size_t_zero_node); |
| |
| // We have a refer. |
| // At the very least, we have an constant offset |
| int all_flags = 0; |
| |
| if( refer.nsubscript() ) |
| { |
| REFER("subscript"); |
| // We have at least one subscript: |
| |
| // Figure we have three subscripts, so nsubscript is 3 |
| // Figure that the subscripts are {5, 4, 3} |
| |
| // We expect that starting from refer.field, that three of our ancestors -- |
| // call them A1, A2, and A3 -- have occurs clauses. |
| |
| // We need to start with the rightmost subscript, and work our way up through |
| // our parents. As we find each parent with an OCCURS, we increment qual_data |
| // by (subscript-1)*An->data.capacity |
| |
| // Establish the field_t pointer for walking up through our ancestors: |
| cbl_field_t *parent = refer.field; |
| |
| int all_flag_bit = 1; |
| // Note the backwards test, because refer->nsubscript is an unsigned value |
| for(size_t i=refer.nsubscript()-1; i<refer.nsubscript(); i-- ) |
| { |
| // We need to search upward for an ancestor with occurs_max: |
| while(parent) |
| { |
| if( parent->occurs.ntimes() ) |
| { |
| break; |
| } |
| parent = parent_of(parent); |
| } |
| // we might have an error condition at this point: |
| if( !parent ) |
| { |
| cbl_internal_error("Too many subscripts"); |
| } |
| // Pick up the integer value of the subscript: |
| tree subscript = gg_define_variable(LONG); |
| |
| if( (refer.subscripts[i].field->attr & FIGCONST_MASK) == zero_value_e ) |
| { |
| // This refer is a figconst ZERO; we treat it as an ALL ZERO |
| // This is our internal representation for ALL, as in TABLE(ALL) |
| |
| // Set the subscript to 1 |
| gg_assign(subscript, |
| build_int_cst_type( TREE_TYPE(subscript), 1)); |
| // Flag this position as ALL |
| all_flags |= all_flag_bit; |
| } |
| else |
| { |
| const cbl_enabled_exceptions_t& |
| enabled_exceptions( cdf_enabled_exceptions() ); |
| if( !enabled_exceptions.match(ec_bound_subscript_e) ) |
| { |
| // With no exception testing, just pick up the value |
| get_integer_value(subscript, |
| refer.subscripts[i].field, |
| refer_offset(refer.subscripts[i])); |
| } |
| else |
| { |
| get_integer_value(subscript, |
| refer.subscripts[i].field, |
| refer_offset(refer.subscripts[i]), |
| CHECK_FOR_FRACTIONAL_DIGITS); |
| IF( var_decl_rdigits, |
| ne_op, |
| integer_zero_node ) |
| { |
| // The subscript isn't an integer |
| set_exception_code(ec_bound_subscript_e); |
| gg_assign(subscript, build_int_cst_type(TREE_TYPE(subscript), 1)); |
| gg_assign(var_decl_rdigits, integer_zero_node); |
| } |
| ELSE |
| { |
| IF( subscript, lt_op, gg_cast(TREE_TYPE(subscript), |
| integer_one_node) ) |
| { |
| // The subscript is too small |
| set_exception_code(ec_bound_subscript_e); |
| gg_assign(subscript, build_int_cst_type(TREE_TYPE(subscript), |
| 1)); |
| } |
| ELSE |
| { |
| IF( subscript, |
| ge_op, |
| build_int_cst_type( TREE_TYPE(subscript), |
| parent->occurs.ntimes()) ) |
| { |
| // The subscript is too large |
| set_exception_code(ec_bound_subscript_e); |
| gg_assign(subscript, build_int_cst_type(TREE_TYPE(subscript), |
| 1)); |
| } |
| ELSE |
| { |
| } |
| ENDIF |
| } |
| ENDIF |
| } |
| ENDIF |
| } |
| } |
| |
| all_flag_bit <<= 1; |
| |
| // Although we strictly don't need to look at the ODO value at this |
| // point, we do want it checked for the purposes of ec-bound-odo |
| |
| const cbl_enabled_exceptions_t& |
| enabled_exceptions( cdf_enabled_exceptions() ); |
| |
| if( enabled_exceptions.match(ec_bound_odo_e) ) |
| { |
| if( parent->occurs.depending_on ) |
| { |
| static tree value64 = gg_define_variable( LONG, |
| ".._gdos_value64", |
| vs_file_static); |
| cbl_field_t *odo = symbol_find_odo(parent); |
| get_depending_on_value_from_odo(value64, odo); |
| } |
| } |
| |
| // Subscript is now a one-based integer |
| // Make it zero-based: |
| |
| gg_decrement(subscript); |
| |
| tree augment = gg_multiply(subscript, get_any_capacity(parent)); |
| gg_assign(retval, gg_add(retval, gg_cast(SIZE_T, augment))); |
| |
| parent = parent_of(parent); |
| } |
| } |
| |
| if( refer.refmod.from ) |
| { |
| REFER("refmod refstart"); |
| // We have a refmod to deal with |
| static tree refstart = gg_define_variable(LONG, "..gdo_refstart", vs_file_static); |
| static tree reflen = gg_define_variable(LONG, "..gdo_reflen", vs_file_static); |
| get_and_check_refstart_and_reflen(refstart, reflen, refer); |
| |
| gg_assign(retval, gg_add(retval, gg_cast(SIZE_T, refstart))); |
| } |
| |
| if( pflags ) |
| { |
| *pflags = all_flags; |
| } |
| |
| return retval; |
| } |
| |
| static tree tree_type_from_field(const cbl_field_t *field); |
| |
| void |
| get_binary_value( tree value, |
| tree rdigits, |
| cbl_field_t *field, |
| tree field_offset, |
| tree hilo |
| ) |
| { |
| Analyze(); |
| if( hilo ) |
| { |
| gg_assign(hilo, integer_zero_node); |
| } |
| |
| bool needs_scaling = true; |
| static const bool debugging=false; |
| |
| // Very special case: |
| if( strcmp(field->name, "ZEROS") == 0 ) |
| { |
| gg_assign(value, gg_cast(TREE_TYPE(value), integer_zero_node)); |
| if( rdigits ) |
| { |
| gg_assign(rdigits, gg_cast(TREE_TYPE(rdigits), integer_zero_node)); |
| } |
| return; |
| } |
| |
| static tree pointer = gg_define_variable( UCHAR_P, |
| "..gbv_pointer", |
| vs_file_static); |
| switch(field->type) |
| { |
| case FldLiteralN: |
| { |
| if( SCALAR_FLOAT_TYPE_P(value) ) |
| { |
| cbl_internal_error("cannot get %<float%> value from %s", field->name); |
| } |
| else |
| { |
| if( rdigits ) |
| { |
| gg_assign(rdigits, build_int_cst_type(TREE_TYPE(rdigits), |
| field->data.rdigits)); |
| } |
| tree dest_type = TREE_TYPE(value); |
| tree source_type = tree_type_from_field(field); |
| |
| gg_assign(value, |
| gg_cast(dest_type, |
| gg_indirect( gg_cast(build_pointer_type(source_type), |
| gg_get_address_of(field->data_decl_node))))); |
| } |
| |
| break; |
| } |
| |
| case FldNumericDisplay: |
| { |
| Analyzer.Message("FldNumericDisplay"); |
| // Establish the source |
| tree source_address = get_data_address(field, field_offset); |
| |
| // We need to check early on for HIGH-VALUE and LOW-VALUE |
| // Pick up the byte |
| tree digit = gg_get_indirect_reference(source_address, NULL_TREE); |
| IF( digit, eq_op, build_int_cst(UCHAR, DEGENERATE_HIGH_VALUE) ) |
| { |
| // We are dealing with HIGH-VALUE |
| if( hilo ) |
| { |
| gg_assign(hilo, integer_one_node); |
| } |
| if( rdigits ) |
| { |
| gg_assign(rdigits, |
| build_int_cst_type( TREE_TYPE(rdigits), |
| get_scaled_rdigits(field))); |
| } |
| gg_assign(value, build_int_cst_type(TREE_TYPE(value), |
| 0x7FFFFFFFFFFFFFFFUL)); |
| } |
| ELSE |
| { |
| IF( digit, eq_op, build_int_cst(UCHAR, DEGENERATE_LOW_VALUE) ) |
| { |
| // We are dealing with LOW-VALUE |
| if( hilo ) |
| { |
| gg_assign(hilo, integer_minus_one_node); |
| } |
| } |
| ELSE |
| { |
| // We are dealing with an ordinary NumericDisplay value |
| gg_assign(pointer, source_address); |
| |
| if( rdigits ) |
| { |
| gg_assign(rdigits, |
| build_int_cst_type(TREE_TYPE(rdigits), |
| get_scaled_rdigits(field))); |
| } |
| // This will be the 128-bit value of the character sequence |
| static tree val128 = gg_define_variable(INT128, |
| "..gbv_val128", |
| vs_file_static); |
| // This is a pointer to the sign byte |
| static tree signp = gg_define_variable(UCHAR_P, |
| "..gbv_signp", |
| vs_file_static); |
| // We need to figure out where the sign information, if any is to be |
| // found: |
| if( field->attr & signable_e ) |
| { |
| // The variable is signed |
| if( field->attr & separate_e ) |
| { |
| // The sign byte is separate |
| if( field->attr & leading_e) |
| { |
| // The first byte is '+' or '-' |
| gg_assign(signp, source_address); |
| // Increment pointer to point to the first actual digit |
| gg_increment(pointer); |
| } |
| else |
| { |
| // The final byte is '+' or '-' |
| gg_assign(signp, |
| gg_add(source_address, |
| build_int_cst_type( SIZE_T, |
| field->data.digits))); |
| } |
| } |
| else |
| { |
| // The sign byte is internal |
| if( field->attr & leading_e) |
| { |
| // The first byte has the sign bit. |
| gg_assign(signp, source_address); |
| } |
| else |
| { |
| // The final byte has the sign bit. |
| gg_assign(signp, |
| gg_add(source_address, |
| build_int_cst_type( SIZE_T, |
| field->data.digits-1))); |
| } |
| } |
| } |
| else |
| { |
| // This value is unsigned, so just use the first location: |
| gg_assign(signp, source_address); |
| } |
| |
| gg_assign(val128, |
| gg_call_expr( INT128, |
| "__gg__numeric_display_to_binary", |
| signp, |
| pointer, |
| build_int_cst_type(INT, field->data.digits), |
| NULL_TREE)); |
| // Assign the value we got from the string to our "return" value: |
| gg_assign(value, gg_cast(TREE_TYPE(value), val128)); |
| } |
| ENDIF |
| } |
| ENDIF |
| |
| break; |
| } |
| |
| case FldNumericBinary: |
| { |
| // As of this writing, the source value is big-endian |
| // We have to convert it to a little-endian destination. |
| tree dest = gg_cast(build_pointer_type(UCHAR), gg_get_address_of(value)); |
| tree source = get_data_address(field, field_offset); |
| |
| size_t dest_nbytes = gg_sizeof(value); |
| size_t source_nbytes = field->data.capacity; |
| |
| if( debugging ) |
| { |
| gg_printf("dest_bytes/source_bytes %ld/%ld\n", |
| build_int_cst_type(SIZE_T, dest_nbytes), |
| build_int_cst_type(SIZE_T, source_nbytes), |
| NULL_TREE); |
| gg_printf("Starting value: ", NULL_TREE); |
| hex_dump(source, source_nbytes); |
| gg_printf("\n", NULL_TREE); |
| } |
| |
| if( dest_nbytes <= source_nbytes ) |
| { |
| // Destination is too small. We will move what we can, throwing away |
| // the most significant source bytes: |
| for(size_t i=0; i<dest_nbytes; i++) |
| { |
| gg_assign(gg_array_value(dest, i), |
| gg_array_value(source, source_nbytes-1-i) ); |
| } |
| } |
| else |
| { |
| // Destination is too big. We'll need to fill the high-order bytes with |
| // either 0x00 for positive numbers, or 0xFF for negative |
| static tree extension = gg_define_variable( UCHAR, |
| "..gbv_extension", |
| vs_file_static); |
| if( field->attr & signable_e ) |
| { |
| IF( gg_array_value(gg_cast(build_pointer_type(SCHAR), source)), |
| lt_op, |
| gg_cast(SCHAR, integer_zero_node) ) |
| { |
| gg_assign(extension, build_int_cst_type(UCHAR, 0xFF)); |
| } |
| ELSE |
| { |
| gg_assign(extension, build_int_cst_type(UCHAR, 0)); |
| } |
| ENDIF |
| } |
| else |
| { |
| gg_assign(extension, build_int_cst_type(UCHAR, 0)); |
| } |
| |
| // Flip the source end-for-end and put it into the dest: |
| size_t i=0; |
| while(i < source_nbytes) |
| { |
| gg_assign(gg_array_value(dest, i), |
| gg_array_value(source, source_nbytes-1-i) ); |
| i += 1; |
| } |
| // Fill the extra high-end bytes with 0x00 or 0xFF extension |
| |
| while(i < dest_nbytes) |
| { |
| gg_assign(gg_array_value(dest, i), |
| extension); |
| i += 1; |
| } |
| } |
| if( debugging ) |
| { |
| gg_printf("Ending value: ", NULL_TREE); |
| hex_dump(dest, dest_nbytes); |
| gg_printf("\n", NULL_TREE); |
| } |
| break; |
| } |
| |
| case FldNumericBin5: |
| case FldIndex: |
| case FldPointer: |
| { |
| if( field->attr & intermediate_e ) |
| { |
| // It is a intermediate, so rdigits has to come from the run-time structure |
| if( rdigits ) |
| { |
| gg_assign(rdigits, |
| gg_cast( TREE_TYPE(rdigits), |
| member(field, "rdigits"))); |
| } |
| } |
| else |
| { |
| // It isn't an intermediate, so we can safely use field->rdigits |
| if( rdigits ) |
| { |
| gg_assign(rdigits, |
| build_int_cst_type( TREE_TYPE(rdigits), |
| get_scaled_rdigits(field))); |
| } |
| } |
| tree source_address = get_data_address(field, field_offset); |
| tree dest_type = TREE_TYPE(value); |
| tree source_type = tree_type_from_size( field->data.capacity, |
| field->attr & signable_e); |
| if( debugging && rdigits) |
| { |
| gg_printf("get_binary_value bin5 rdigits: %d\n", rdigits, NULL_TREE); |
| } |
| |
| gg_assign(value, |
| gg_cast(dest_type, |
| gg_indirect(gg_cast( build_pointer_type(source_type), |
| source_address )))); |
| break; |
| } |
| |
| case FldPacked: |
| { |
| if( rdigits ) |
| { |
| gg_assign(rdigits, |
| build_int_cst_type( TREE_TYPE(rdigits), |
| get_scaled_rdigits(field))); |
| } |
| tree dest_type = TREE_TYPE(value); |
| |
| gg_assign(value, |
| gg_cast(dest_type, |
| gg_call_expr(INT128, |
| "__gg__packed_to_binary", |
| get_data_address( field, |
| field_offset), |
| build_int_cst_type(INT, |
| field->data.capacity), |
| NULL_TREE))); |
| break; |
| } |
| |
| case FldFloat: |
| { |
| // We are going to assume that the float value contains an integer. |
| if( rdigits ) |
| { |
| gg_assign(rdigits, |
| gg_cast( TREE_TYPE(rdigits), integer_zero_node)); |
| } |
| gg_assign(value, |
| gg_cast(TREE_TYPE(value), |
| gg_call_expr( INT128, |
| "__gg__integer_from_float128", |
| gg_get_address_of(field->var_decl_node), |
| NULL_TREE))); |
| needs_scaling = false; |
| break; |
| } |
| |
| default: |
| { |
| char *err = xasprintf("%s(): We know not how to" |
| " get a binary value from %s\n", |
| __func__, |
| cbl_field_type_str(field->type) ); |
| cbl_internal_error("%s", err); |
| abort(); |
| break; |
| } |
| } |
| |
| if( needs_scaling ) |
| { |
| if( field->attr & scaled_e ) |
| { |
| if( field->data.rdigits < 0 ) |
| { |
| scale_by_power_of_ten_N(value, -field->data.rdigits); |
| } |
| } |
| } |
| } |
| |
| static tree |
| tree_type_from_field(const cbl_field_t *field) |
| { |
| gcc_assert(field); |
| return tree_type_from_size(field->data.capacity, field->attr & signable_e); |
| } |
| |
| tree |
| get_data_address( cbl_field_t *field, |
| tree offset) // Offset is SIZE_T |
| { |
| if( offset ) |
| { |
| return gg_cast( UCHAR_P, |
| gg_add( gg_cast(SIZE_T, |
| member( field->var_decl_node, |
| "data")), |
| offset)); |
| } |
| else |
| { |
| return member(field->var_decl_node, "data"); |
| } |
| } |
| |
| FIXED_WIDE_INT(128) |
| get_power_of_ten(int n) |
| { |
| // 2** 64 = 1.8E19 |
| // 2**128 = 3.4E38 |
| FIXED_WIDE_INT(128) retval = 1; |
| static const int MAX_POWER = 19 ; |
| static const unsigned long long pos[MAX_POWER+1] = |
| { |
| 1ULL, // 00 |
| 10ULL, // 01 |
| 100ULL, // 02 |
| 1000ULL, // 03 |
| 10000ULL, // 04 |
| 100000ULL, // 05 |
| 1000000ULL, // 06 |
| 10000000ULL, // 07 |
| 100000000ULL, // 08 |
| 1000000000ULL, // 09 |
| 10000000000ULL, // 10 |
| 100000000000ULL, // 11 |
| 1000000000000ULL, // 12 |
| 10000000000000ULL, // 13 |
| 100000000000000ULL, // 14 |
| 1000000000000000ULL, // 15 |
| 10000000000000000ULL, // 16 |
| 100000000000000000ULL, // 17 |
| 1000000000000000000ULL, // 18 |
| 10000000000000000000ULL, // 19 |
| }; |
| if( n < 0 || n>MAX_POWER*2) // The most we can handle is 10**38 |
| { |
| fprintf(stderr, "Trying to raise 10 to %d as an int128, which we can't do.\n", n); |
| fprintf(stderr, "The problem is in %s.\n", __func__); |
| abort(); |
| } |
| if( n <= MAX_POWER ) |
| { |
| // Up to 10**18 we do directly: |
| retval = pos[n]; |
| } |
| else |
| { |
| // 19 through 38 is handled in a second step, because when this was written, |
| // GCC couldn't handle 128-bit constants: |
| retval = pos[n/2]; |
| retval *= retval; |
| if( n & 1 ) |
| { |
| retval *= 10; |
| } |
| } |
| return retval; |
| } |
| |
| void |
| scale_by_power_of_ten_N(tree value, |
| int N, |
| bool check_for_fractional) |
| { |
| // This routine is called when we know N at compile time. |
| |
| Analyze(); |
| Analyzer.Message("takes int N"); |
| if( N == 0 ) |
| { |
| } |
| else if( N > 0 ) |
| { |
| tree value_type = TREE_TYPE(value); |
| FIXED_WIDE_INT(128) power_of_ten = get_power_of_ten(N); |
| gg_assign(value, gg_multiply(value, wide_int_to_tree( value_type, |
| power_of_ten))); |
| } |
| if( N < 0 ) |
| { |
| tree value_type = TREE_TYPE(value); |
| FIXED_WIDE_INT(128) power_of_ten = get_power_of_ten(-N); |
| if( check_for_fractional ) |
| { |
| IF( gg_mod(value, wide_int_to_tree( value_type, |
| power_of_ten)), |
| ne_op, |
| gg_cast(value_type, integer_zero_node) ) |
| { |
| gg_assign(var_decl_rdigits, integer_one_node); |
| } |
| ELSE |
| ENDIF |
| } |
| gg_assign(value, gg_divide(value, wide_int_to_tree( value_type, |
| power_of_ten))); |
| } |
| } |
| |
| tree |
| scale_by_power_of_ten(tree value, |
| tree N, |
| bool check_for_fractional) |
| { |
| Analyze(); |
| static tree retval = gg_define_variable(INT, "..sbpot2_retval", vs_file_static); |
| |
| if( check_for_fractional ) |
| { |
| // Our caller expects us to return 1 if value was something like 99v99 and |
| // the fractional part was non-zero |
| gg_assign(value, |
| gg_cast(TREE_TYPE(value), |
| gg_call_expr(INT128, |
| "__gg__scale_by_power_of_ten_1", |
| gg_cast(INT128, value), |
| N, |
| NULL_TREE))); |
| } |
| else |
| { |
| // Our caller does not expect us to test for fractional values |
| gg_assign(value, |
| gg_cast(TREE_TYPE(value), |
| gg_call_expr(INT128, |
| "__gg__scale_by_power_of_ten_2", |
| gg_cast(INT128, value), |
| N, |
| NULL_TREE))); |
| |
| } |
| |
| gg_assign(retval, integer_zero_node); |
| return retval; |
| } |
| |
| void |
| scale_and_round(tree value, |
| int value_rdigits, |
| bool target_is_signable, |
| int target_rdigits, |
| cbl_round_t rounded) |
| { |
| if( !target_is_signable ) |
| { |
| // The target has to be positive, so take the absolute value of the input |
| gg_assign(value, gg_abs(value)); |
| } |
| |
| if( target_rdigits >= value_rdigits ) |
| { |
| // The value doesn't have enough rdigits. All we need to do is multiply it |
| // by a power of ten to get it right: |
| scale_by_power_of_ten_N(value, |
| target_rdigits - value_rdigits); |
| } |
| else |
| { |
| // The value has too few rdigits. |
| switch(rounded) |
| { |
| case nearest_away_from_zero_e: |
| { |
| // This is rounding away from zero |
| |
| // We want to adjust value so that the extra digit is in the units |
| // place: |
| scale_by_power_of_ten_N(value, |
| target_rdigits - value_rdigits + 1); |
| // Add five to the result: |
| IF( value, lt_op, gg_cast(TREE_TYPE(value), integer_zero_node) ) |
| { |
| gg_assign(value, |
| gg_add( value, |
| build_int_cst_type(TREE_TYPE(value), -5))); |
| } |
| ELSE |
| { |
| gg_assign(value, |
| gg_add( value, |
| build_int_cst_type(TREE_TYPE(value), +5))); |
| } |
| // And now get rid of the lowest decimal digit |
| scale_by_power_of_ten_N(value, -1); |
| |
| break; |
| } |
| |
| case truncation_e: |
| { |
| // Without rounding, just scale the result |
| scale_by_power_of_ten_N(value, target_rdigits - value_rdigits); |
| break; |
| } |
| default: |
| abort(); |
| break; |
| } |
| } |
| } |
| |
| void |
| hex_dump(tree data, size_t bytes) |
| { |
| gg_printf("0x", NULL_TREE); |
| for(size_t i=0; i<bytes; i++) |
| { |
| gg_printf("%2.2x", |
| gg_cast(UINT, |
| gg_array_value( gg_cast(build_pointer_type(UCHAR), data), |
| i)), |
| NULL_TREE); |
| } |
| } |
| |
| tree |
| tree_type_from_size(size_t bytes, int signable) |
| { |
| tree retval = NULL_TREE; |
| |
| if( signable ) |
| { |
| switch( bytes ) |
| { |
| case 1: |
| retval = CHAR; |
| break; |
| case 2: |
| retval = SHORT; |
| break; |
| case 4: |
| retval = INT; |
| break; |
| case 8: |
| retval = LONGLONG; |
| break; |
| case 16: |
| retval = INT128; |
| break; |
| default: |
| gcc_unreachable(); |
| break; |
| } |
| } |
| else |
| { |
| switch( bytes ) |
| { |
| case 1: |
| retval = UCHAR; |
| break; |
| case 2: |
| retval = USHORT; |
| break; |
| case 4: |
| retval = UINT; |
| break; |
| case 8: |
| retval = ULONGLONG; |
| break; |
| case 16: |
| retval = UINT128; |
| break; |
| default: |
| gcc_unreachable(); |
| break; |
| } |
| } |
| return retval; |
| } |
| |
| static |
| bool |
| refer_has_depends(const cbl_refer_t &refer, refer_type_t refer_type) |
| { |
| if( suppress_dest_depends ) |
| { |
| // This is set, for example, by parser_initialize, which needs to set a |
| // variable's value regardless of the impact of a DEPENDING ON clause. |
| return false; |
| } |
| |
| if( refer.field |
| && (refer.field->attr & (intermediate_e)) ) |
| { |
| // This field can't have a DEPENDING ON |
| return false; |
| } |
| |
| // Check if there there is an occurs with a depending_on in the hierarchy |
| bool proceed = false; |
| const cbl_field_t *odo = symbol_find_odo(refer.field); |
| cbl_field_t *depending_on; |
| if( odo && odo != refer.field ) |
| { |
| // We have an ODO and refer.field is not the ODO, so we can keep looking |
| depending_on = cbl_field_of(symbol_at(odo->occurs.depending_on)); |
| if( depending_on->var_decl_node ) |
| { |
| // The depending_on has been initialized |
| if( refer_type == refer_source ) |
| { |
| proceed = true; |
| } |
| else |
| { |
| // In ISO/IEC 1989:2023, "OCCURS 13.18.38.4 General rules", talks about the |
| // three situations we know how to deal with. |
| |
| // Rule 7) We need to detect if depending_on is completely independent |
| // of refer.field |
| cbl_field_t *p; |
| cbl_field_t *parent1 = refer.field; |
| while( (p = parent_of(parent1)) ) |
| { |
| parent1 = p; |
| } |
| const cbl_field_t *parent2 = depending_on; |
| while( (p = parent_of(parent2)) ) |
| { |
| parent2 = p; |
| } |
| if( parent1 != parent2 ) |
| { |
| // refer.field and depending_on have two different ultimate parents, so |
| // Rule 7) applies, and we have to trim the destination according to |
| // depending_on |
| //gg_printf("Rule 7 applies\n", NULL_TREE); |
| proceed = true; |
| } |
| else |
| { |
| // Rule 7) doesn't apply, so we have to check Rule 8) |
| // In this case: |
| // 01 digtab. |
| // 05 depl pic 9. |
| // 05 digitgrp. |
| // 10 digits occurs 1 to 9 depending on depl pic x. |
| // MOVE ... TO digitgrp |
| // The DEPENDING ON variable depl is not subordinate to digitgrp, and |
| // consequently we have to trim according to depl: |
| if( depending_on->offset < refer.field->offset ) |
| { |
| // depending_on comes before refer.field, so rule 8a) applies |
| //gg_printf("Rule 8a) applies\n", NULL_TREE); |
| proceed = true; |
| } |
| else |
| { |
| // depending_on comes after refer.field, so Rule 8b) for receiving |
| // items applies, and we will not trim according to depending_on |
| //gg_printf("Rule 8b) applies\n", NULL_TREE); |
| } |
| } |
| } |
| } |
| } |
| return proceed; |
| } |
| |
| void |
| set_exception_code_func(ec_type_t ec, int /*line*/, int from_raise_statement) |
| { |
| if( ec ) |
| { |
| gg_call(VOID, |
| "__gg__set_exception_code", |
| build_int_cst_type(INT, ec), |
| build_int_cst_type(INT, from_raise_statement), |
| NULL_TREE); |
| } |
| else |
| { |
| gg_printf("set_exception_code: set it to ZERO\n", NULL_TREE); |
| gg_assign(var_decl_exception_code, integer_zero_node); |
| } |
| } |
| |
| bool |
| process_this_exception(const ec_type_t ec) |
| { |
| const cbl_enabled_exceptions_t& enabled_exceptions( cdf_enabled_exceptions() ); |
| bool retval; |
| if( enabled_exceptions.match(ec) || !skip_exception_processing ) |
| { |
| retval = true; |
| } |
| else |
| { |
| retval = false; |
| } |
| return retval; |
| } |
| |
| void |
| rt_error(const char *msg) |
| { |
| // Come here with a fatal run-time error message |
| char ach[256]; |
| snprintf( ach, sizeof(ach), "%s:%d: %s", |
| current_filename.back().c_str(), |
| CURRENT_LINE_NUMBER, |
| msg); |
| gg_printf("%s\n", gg_string_literal(ach), NULL_TREE); |
| gg_abort(); |
| } |
| |
| void |
| copy_little_endian_into_place(cbl_field_t *dest, |
| tree dest_offset, |
| tree value, |
| int rhs_rdigits, |
| bool check_for_error, |
| const tree &size_error) |
| { |
| if( check_for_error ) |
| { |
| // We need to see if value can fit into destref |
| |
| // We do this by comparing value to 10^(lhs.ldigits + rhs_rdigits) |
| // Example: rhs is 123.45, whichis 12345 with rdigits 2 |
| // lhs is 99.999. So, lhs.digits is 5, and lhs.rdigits is 3. |
| // 10^(5 - 3 + 2) is 10^4, which is 10000. Because 12345 is >= 10000, the |
| // source can't fit into the destination. |
| |
| // Note: I am not trying to avoid the use of stack variables, because I am |
| // not sure how to declare a file-static variable of unknown type. |
| tree abs_value = gg_define_variable(TREE_TYPE(value)); |
| IF( value, lt_op, build_int_cst_type(TREE_TYPE(value), 0) ) |
| { |
| gg_assign(abs_value, gg_negate(value)); |
| } |
| ELSE |
| { |
| gg_assign(abs_value, value); |
| } |
| ENDIF |
| |
| FIXED_WIDE_INT(128) power_of_ten = get_power_of_ten( dest->data.digits |
| - dest->data.rdigits |
| + rhs_rdigits ); |
| IF( gg_cast(INT128, abs_value), |
| ge_op, |
| wide_int_to_tree(INT128, power_of_ten) ) |
| { |
| // Flag the size error |
| gg_assign(size_error, integer_one_node); |
| } |
| ELSE |
| ENDIF |
| } |
| scale_by_power_of_ten_N(value, dest->data.rdigits - rhs_rdigits); |
| |
| tree dest_type = tree_type_from_size( dest->data.capacity, |
| dest->attr & signable_e); |
| tree dest_pointer = gg_add(member(dest->var_decl_node, "data"), |
| dest_offset); |
| gg_assign(gg_indirect(gg_cast(build_pointer_type(dest_type), dest_pointer)), |
| gg_cast(dest_type, value)); |
| } |
| |
| void |
| build_array_of_treeplets( int ngroup, |
| size_t N, |
| cbl_refer_t *refers) |
| { |
| if( N ) |
| { |
| // At the present time the most this routine is called is four times, for |
| // the implementation of the UNSTRING verb. |
| |
| if( N > MIN_FIELD_BLOCK_SIZE ) |
| { |
| gg_call(VOID, |
| "__gg__resize_treeplet", |
| build_int_cst_type(INT, ngroup), |
| build_int_cst_type(SIZE_T, N), |
| NULL_TREE |
| ); |
| } |
| switch(ngroup) |
| { |
| case 1: |
| for(size_t i=0; i<N; i++) |
| { |
| gg_assign(gg_array_value(var_decl_treeplet_1f, i), |
| refers[i].field ? gg_get_address_of(refers[i].field->var_decl_node) |
| : gg_cast(cblc_field_p_type_node, null_pointer_node)); |
| gg_assign(gg_array_value(var_decl_treeplet_1o, i), |
| refer_offset(refers[i])); |
| gg_assign(gg_array_value(var_decl_treeplet_1s, i), |
| refer_size_source(refers[i])); |
| } |
| break; |
| case 2: |
| for(size_t i=0; i<N; i++) |
| { |
| gg_assign(gg_array_value(var_decl_treeplet_2f, i), |
| refers[i].field ? gg_get_address_of(refers[i].field->var_decl_node) |
| : gg_cast(cblc_field_p_type_node, null_pointer_node)); |
| gg_assign(gg_array_value(var_decl_treeplet_2o, i), |
| refer_offset(refers[i])); |
| gg_assign(gg_array_value(var_decl_treeplet_2s, i), |
| refer_size_source(refers[i])); |
| } |
| break; |
| case 3: |
| for(size_t i=0; i<N; i++) |
| { |
| gg_assign(gg_array_value(var_decl_treeplet_3f, i), |
| refers[i].field ? gg_get_address_of(refers[i].field->var_decl_node) |
| : gg_cast(cblc_field_p_type_node, null_pointer_node)); |
| gg_assign(gg_array_value(var_decl_treeplet_3o, i), |
| refer_offset(refers[i])); |
| gg_assign(gg_array_value(var_decl_treeplet_3s, i), |
| refer_size_source(refers[i])); |
| } |
| break; |
| case 4: |
| for(size_t i=0; i<N; i++) |
| { |
| gg_assign(gg_array_value(var_decl_treeplet_4f, i), |
| refers[i].field ? gg_get_address_of(refers[i].field->var_decl_node) |
| : gg_cast(cblc_field_p_type_node, null_pointer_node)); |
| gg_assign(gg_array_value(var_decl_treeplet_4o, i), |
| refer_offset(refers[i])); |
| gg_assign(gg_array_value(var_decl_treeplet_4s, i), |
| refer_size_source(refers[i])); |
| } |
| break; |
| default: |
| abort(); |
| break; |
| } |
| } |
| else |
| { |
| // Just do nothing |
| } |
| } |
| |
| void |
| build_array_of_fourplets( int ngroup, |
| size_t N, |
| cbl_refer_t *refers) |
| { |
| int flag_bits = 0; |
| if( N ) |
| { |
| if( N > MIN_FIELD_BLOCK_SIZE ) |
| { |
| gg_call(VOID, |
| "__gg__resize_treeplet", |
| build_int_cst_type(INT, ngroup), |
| build_int_cst_type(SIZE_T, N), |
| NULL_TREE); |
| |
| gg_call(VOID, |
| "__gg__resize_int_p", |
| gg_get_address_of(var_decl_fourplet_flags_size), |
| gg_get_address_of(var_decl_fourplet_flags), |
| build_int_cst_type(SIZE_T, N), |
| NULL_TREE); |
| } |
| |
| for(size_t i=0; i<N; i++) |
| { |
| gg_assign(gg_array_value(var_decl_treeplet_1f, i), |
| gg_get_address_of(refers[i].field->var_decl_node)); |
| gg_assign(gg_array_value(var_decl_treeplet_1o, i), |
| refer_offset(refers[i], &flag_bits)); |
| gg_assign(gg_array_value(var_decl_treeplet_1s, i), |
| refer_size_source(refers[i])); |
| gg_assign(gg_array_value(var_decl_fourplet_flags, i), |
| build_int_cst_type(INT, flag_bits)); |
| } |
| } |
| else |
| { |
| abort(); |
| } |
| } |
| |
| tree |
| build_array_of_size_t( size_t N, |
| const size_t *values) |
| { |
| // We create and populate an array of size_t values |
| |
| // This only works because it is used in but one spot. If this routine is |
| // called twice, be careful about how the first one is used. It's a static |
| // variable, you see. |
| static tree values_p = gg_define_variable(SIZE_T_P, "..baost_values_p", vs_file_static); |
| if( N ) |
| { |
| gg_assign( values_p, |
| gg_cast(build_pointer_type(SIZE_T), |
| gg_malloc(N*sizeof(SIZE_T)))); |
| |
| for(size_t i=0; i<N; i++) |
| { |
| gg_assign( gg_array_value(values_p, i), |
| build_int_cst_type(SIZE_T, values[i])); |
| } |
| } |
| else |
| { |
| gg_assign( values_p, |
| gg_cast(build_pointer_type(SIZE_T), null_pointer_node )); |
| } |
| return values_p; |
| } |
| |
| void |
| parser_display_internal_field(tree file_descriptor, |
| cbl_field_t *field, |
| bool advance) |
| { |
| cbl_refer_t wrapper = {}; |
| wrapper.field = field; |
| parser_display_internal(file_descriptor, wrapper, advance); |
| } |
| |
| char * |
| get_literal_string(cbl_field_t *field) |
| { |
| assert(field->type == FldLiteralA); |
| size_t buffer_length = field->data.capacity+1; |
| char *buffer = static_cast<char *>(xcalloc(1, buffer_length)); |
| |
| for(size_t i=0; i<field->data.capacity; i++) |
| { |
| buffer[i] = ascii_to_internal(field->data.initial[i]); |
| } |
| |
| return buffer; |
| } |
| |
| bool |
| refer_is_clean(const cbl_refer_t &refer) |
| { |
| if( !refer.field || refer.field->type == FldLiteralN ) |
| { |
| // It is routine for a refer to have no field. It happens when the parser |
| // passes us a refer for an optional parameter that has been omitted, for |
| // example. |
| |
| // It is also the case that a FldLiteralN will never have suscripts, or the |
| // like. |
| return true; |
| } |
| |
| return !refer.all |
| && !refer.addr_of |
| && !refer.nsubscript() |
| && !refer.refmod.from |
| && !refer.refmod.len |
| && !refer_has_depends(refer, refer_source) |
| ; |
| } |
| |
| |
| /* This routine returns the length portion of a refmod(start:length) reference. |
| It extracts both the start and the length so that it can add them together |
| to make sure that result falls within refer.capacity. |
| |
| This routine shouldn't be called unless there is refmod involved. |
| */ |
| static |
| tree // size_t |
| refer_refmod_length(const cbl_refer_t &refer) |
| { |
| Analyze(); |
| REFER("refstart and reflen"); |
| static tree refstart = gg_define_variable(LONG, "..rrl_refstart", vs_file_static); |
| static tree reflen = gg_define_variable(LONG, "..rrl_reflen", vs_file_static); |
| |
| get_and_check_refstart_and_reflen( refstart, reflen, refer); |
| |
| // Arrive here with a valid value for reflen: |
| |
| return gg_cast(SIZE_T, reflen); |
| } |
| |
| static |
| tree // size_t |
| refer_fill_depends(const cbl_refer_t &refer) |
| { |
| REFER(""); |
| // This returns a positive number which is the amount a depends-limited |
| // capacity needs to be reduced. |
| Analyze(); |
| cbl_field_t *odo = symbol_find_odo(refer.field); |
| |
| static tree value64 = gg_define_variable(LONG, "..rfd_value64", vs_file_static); |
| |
| get_depending_on_value(value64, refer); |
| |
| // value64 is >= zero and < bounds.upper |
| |
| // We multiply the ODO value by the size of the data capacity to get the |
| // shortened length: |
| |
| tree mult_expr = gg_multiply( build_int_cst_type(TREE_TYPE(value64), odo->data.capacity), |
| value64 ); |
| |
| // And we add that to the distance from the requested variable to the odo |
| // variable to get the modified length: |
| tree add_expr = gg_add(mult_expr, build_int_cst_type(SIZE_T, odo->offset - refer.field->offset)); |
| return add_expr; |
| } |
| |
| tree // size_t |
| refer_offset(const cbl_refer_t &refer, |
| int *pflags) |
| { |
| // This routine calculates the effect of a refer offset on the |
| // refer.field->data location. When there are subscripts, the data location |
| // gets augmented by the (subscript-1)*element_size calculation. And when |
| // there is a refmod, the data location additionally gets augmented by |
| // (refmod.from-1) |
| |
| if( !refer.field ) |
| { |
| // It's common for the field to be missing. It generally means that an |
| // optional parameter wasn't supplied. |
| return size_t_zero_node; |
| } |
| |
| if( refer.field->type == FldLiteralN || refer.field->type == FldLiteralA ) |
| { |
| // We know that literals have no offset |
| return size_t_zero_node; |
| } |
| |
| tree retval = get_data_offset(refer, pflags); |
| return retval; |
| } |
| |
| static |
| tree // size_t |
| refer_size(const cbl_refer_t &refer, refer_type_t refer_type) |
| { |
| Analyze(); |
| static tree retval = gg_define_variable(SIZE_T, "..rs_retval", vs_file_static); |
| |
| if( !refer.field ) |
| { |
| return size_t_zero_node; |
| } |
| |
| if( refer_is_clean(refer) ) |
| { |
| return get_any_capacity(refer.field); |
| } |
| |
| // Step the first: Get the actual full length: |
| |
| if( refer_has_depends(refer, refer_type) ) |
| { |
| // Because there is a depends, we might have to change the length: |
| gg_assign(retval, refer_fill_depends(refer)); |
| } |
| else |
| { |
| gg_assign(retval, get_any_capacity(refer.field)); |
| } |
| |
| if( refer.refmod.from || refer.refmod.len ) |
| { |
| tree refmod = refer_refmod_length(refer); |
| // retval is the ODO based total length. |
| // refmod is the length resulting from refmod(from:len) |
| // We have to reduce retval by the effect of refmod: |
| tree diff = gg_subtract(get_any_capacity(refer.field), |
| refmod); |
| gg_assign(retval, gg_subtract(retval, diff)); |
| } |
| return retval; |
| } |
| |
| tree // size_t |
| refer_size_dest(const cbl_refer_t &refer) |
| { |
| return refer_size(refer, refer_dest); |
| } |
| |
| tree // size_t |
| refer_size_source(const cbl_refer_t &refer) |
| { |
| /* There are oddities involved with refer_size_source and refer_size_dest. |
| See the comments in refer_has_depends for some explanation. There are |
| other considerations, as well. For example, consider a move, where you |
| have both a source and a dest. Given that refer_size returns a static, |
| there are ways that the source and dest can trip over each other. |
| |
| The logic here avoids all known cases where they might trip over each |
| other. But there conceivably might be others,. |
| |
| You have been warned. |
| |
| */ |
| |
| // This test has to be here, otherwise there are failures in regression |
| // testing. |
| if( !refer.field ) |
| { |
| return size_t_zero_node; |
| } |
| |
| // This test has to be here, otherwise there are failures in regression |
| // testing. |
| if( refer_is_clean(refer) ) |
| { |
| return get_any_capacity(refer.field); |
| } |
| |
| // This assignment has to be here. Simply returning refer_size() results |
| // in regression testing errors. |
| static tree retval = gg_define_variable(SIZE_T, "..rss_retval", vs_file_static); |
| gg_assign(retval, refer_size(refer, refer_source)); |
| return retval; |
| } |
| |
| tree |
| qualified_data_location(const cbl_refer_t &refer) |
| { |
| return gg_add(member(refer.field->var_decl_node, "data"), |
| refer_offset(refer)); |
| } |
| |
| uint64_t |
| get_time_nanoseconds() |
| { |
| // This code was unabashedly stolen from gcc/timevar.cc. |
| // It returns the Unix epoch with nine decimal places. |
| |
| uint64_t retval = 0; |
| |
| #ifdef HAVE_CLOCK_GETTIME |
| struct timespec ts; |
| clock_gettime (CLOCK_REALTIME, &ts); |
| retval = ts.tv_sec * 1000000000 + ts.tv_nsec; |
| return retval; |
| #endif |
| #ifdef HAVE_GETTIMEOFDAY |
| struct timeval tv; |
| gettimeofday (&tv, NULL); |
| retval = tv.tv_sec * 1000000000 + tv.tv_usec * 1000; |
| return retval; |
| #endif |
| return retval; |
| } |
