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[android] also load debug env vars from system properties

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This commit is contained in:
Andrew Rogers
2024-12-10 11:33:35 -08:00
parent 283ce7fa35
commit 0192aa4728
1 changed files with 32 additions and 1 deletions
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33
stdlib/public/runtime/EnvironmentVariables.cpp
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@@ -21,6 +21,10 @@
#include <string.h>
#include <inttypes.h>
#if defined(__ANDROID__)
#include <sys/system_properties.h>
#endif
using namespace swift;
namespace {
@@ -187,9 +191,32 @@ extern "C" char **_environ;
#endif
#endif
#if defined(__ANDROID__)
// On Android, also try loading runtime debug env variables from system props.
static void platformInitialize(void *context) {
(void)context;
#define SYSPROP_PREFIX "debug.swift.runtime."
#define VARIABLE(name, type, defaultValue, help) \
do { \
char name##_string[PROP_VALUE_MAX] = ""; \
if (__system_property_get(SYSPROP_PREFIX #name, name##_string) > 0) { \
swift::runtime::environment::name##_isSet_variable = true; \
swift::runtime::environment::name##_variable = \
parse_##type(#name, name##_string, defaultValue); \
} \
} while (0);
#include "EnvironmentVariables.def"
#undef VARIABLE
}
#else
static void platformInitialize(void *context) {
(void)context;
}
#endif
#if !SWIFT_STDLIB_HAS_ENVIRON
void swift::runtime::environment::initialize(void *context) {
(void)context;
platformInitialize(context);
}
#elif defined(ENVIRON)
void swift::runtime::environment::initialize(void *context) {
@@ -242,6 +269,8 @@ void swift::runtime::environment::initialize(void *context) {
}
}
platformInitialize(context);
if (SWIFT_DEBUG_HELP_variable)
printHelp(nullptr);
}
@@ -258,6 +287,8 @@ void swift::runtime::environment::initialize(void *context) {
} while (0);
#include "EnvironmentVariables.def"
platformInitialize(context);
// Print help if requested.
if (parse_bool("SWIFT_DEBUG_HELP", getenv("SWIFT_DEBUG_HELP"), false))
printHelp("Using getenv to read variables. Unknown SWIFT_DEBUG_ variables "