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small optimization in code related to handling DWARF information about

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parameter
This commit is contained in:
nnosov
2020-04-16 19:20:19 +04:00
parent c7e9925efe
commit 36786245c7
1 changed files with 5 additions and 4 deletions
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src/dwarf/dwarf_parameter.c
+5 -4
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@@ -256,27 +256,28 @@ bool pst_parameter_handle_dwarf(pst_parameter* param, Dwarf_Die* result, pst_fun
param->info.flags |= PARAM_CONST; param->info.flags |= PARAM_CONST;
// no locations definitions, value is constant, known by DWARF directly // no locations definitions, value is constant, known by DWARF directly
attr = dwarf_attr(result, DW_AT_const_value, &attr_mem); attr = dwarf_attr(result, DW_AT_const_value, &attr_mem);
param->info.flags |= PARAM_HAS_VALUE;
switch (dwarf_whatform(attr)) { switch (dwarf_whatform(attr)) {
case DW_FORM_string: case DW_FORM_string:
param->info.value = (unw_word_t)dwarf_formstring(attr); param->info.value = (unw_word_t)dwarf_formstring(attr);
param->info.flags |= PARAM_HAS_VALUE;
break; break;
case DW_FORM_data1: case DW_FORM_data1:
case DW_FORM_data2: case DW_FORM_data2:
case DW_FORM_data4: case DW_FORM_data4:
case DW_FORM_data8: case DW_FORM_data8:
dwarf_formudata(attr, &param->info.value); dwarf_formudata(attr, &param->info.value);
param->info.flags |= PARAM_HAS_VALUE;
break; break;
case DW_FORM_sdata: case DW_FORM_sdata:
dwarf_formsdata(attr, (int64_t*)&param->info.value); dwarf_formsdata(attr, (int64_t*)&param->info.value);
param->info.flags |= PARAM_HAS_VALUE;
break; break;
case DW_FORM_udata: case DW_FORM_udata:
dwarf_formudata(attr, &param->info.value); dwarf_formudata(attr, &param->info.value);
param->info.flags |= PARAM_HAS_VALUE;
break; break;
default:
pst_log(SEVERITY_WARNING, "Unknown form '0x%X' of attribute for Constant value", dwarf_whatform(attr));
param->info.flags &= ~PARAM_HAS_VALUE;
} }
if(param->info.flags & PARAM_HAS_VALUE) { if(param->info.flags & PARAM_HAS_VALUE) {
pst_log(SEVERITY_DEBUG, "Parameter constant value: 0x%lX", param->info.value); pst_log(SEVERITY_DEBUG, "Parameter constant value: 0x%lX", param->info.value);
} }