[Qemu-devel] [PATCH] acpi unit-test: resolved iasl crash

[Marcel Apfelbaum <marcel.a@redhat.com>]

It seems that iasl has an issue when disassembles
some ACPI tables using the command line:
iasl -e DSDT -e SSDT -d HPET
I opened a bug on iasl project:
https://github.com/acpica/acpica/issues/20

Modified the iasl command line to "iasl -d HPET"
until the problem is solved. The command line
remained the same for DSDT and SSDT tables.

Reported-by:Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
---
 tests/acpi-test.c | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/tests/acpi-test.c b/tests/acpi-test.c
index 2d32b69..26d2e26 100644
--- a/tests/acpi-test.c
+++ b/tests/acpi-test.c
@@ -403,7 +403,7 @@ static void dump_aml_files(test_data *data, bool rebuild)
     }
 }
 
-static void load_asl(GArray *sdts, AcpiSdtTable *sdt)
+static void load_asl(GArray *sdts, AcpiSdtTable *sdt, bool referenceDsdt)
 {
     AcpiSdtTable *temp;
     GError *error = NULL;
@@ -419,9 +419,11 @@ static void load_asl(GArray *sdts, AcpiSdtTable *sdt)
 
     /* build command line */
     g_string_append_printf(command_line, " -p %s ", sdt->asl_file);
-    for (i = 0; i < 2; ++i) { /* reference DSDT and SSDT */
-        temp = &g_array_index(sdts, AcpiSdtTable, i);
-        g_string_append_printf(command_line, "-e %s ", temp->aml_file);
+    if (referenceDsdt) {
+        for (i = 0; i < 2; ++i) { /* reference DSDT and SSDT */
+            temp = &g_array_index(sdts, AcpiSdtTable, i);
+            g_string_append_printf(command_line, "-e %s ", temp->aml_file);
+        }
     }
     g_string_append_printf(command_line, "-d %s", sdt->aml_file);
 
@@ -510,14 +512,14 @@ static void test_acpi_asl(test_data *data)
     dump_aml_files(data, false);
     for (i = 0; i < data->ssdt_tables->len; ++i) {
         GString *asl, *exp_asl;
-
+        bool referenceDsdt = (i < 2); /* only for DSDT and SSDT */
         sdt = &g_array_index(data->ssdt_tables, AcpiSdtTable, i);
         exp_sdt = &g_array_index(exp_data.ssdt_tables, AcpiSdtTable, i);
 
-        load_asl(data->ssdt_tables, sdt);
+        load_asl(data->ssdt_tables, sdt, referenceDsdt);
         asl = normalize_asl(sdt->asl);
 
-        load_asl(exp_data.ssdt_tables, exp_sdt);
+        load_asl(exp_data.ssdt_tables, exp_sdt, referenceDsdt);
         exp_asl = normalize_asl(exp_sdt->asl);
 
         g_assert(!g_strcmp0(asl->str, exp_asl->str));
-- 
1.8.3.1