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linker: use libc's environ variable to store envp

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This is to make getenv() work correctly.

Bug: http://b/20567629
Change-Id: I148627e1efea1649fb0822c95876811652fb4082
This commit is contained in:
Dmitriy Ivanov 2015-04-28 13:34:16 -07:00
parent 6fa65e7cd5
commit a85bcc2e99
1 changed files with 4 additions and 5 deletions
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9
linker/linker_environ.cpp
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@ -36,7 +36,6 @@
#include "private/KernelArgumentBlock.h"
static char** _envp;
static bool _AT_SECURE_value = true;
bool get_AT_SECURE() {
@ -150,8 +149,8 @@ static bool __is_unsafe_environment_variable(const char* name) {
}
static void __sanitize_environment_variables() {
char** src = _envp;
char** dst = _envp;
char** src = environ;
char** dst = environ;
for (; src[0] != nullptr; ++src) {
if (!__is_valid_environment_variable(src[0])) {
continue;
@ -168,7 +167,7 @@ static void __sanitize_environment_variables() {
void linker_env_init(KernelArgumentBlock& args) {
// Store environment pointer - can't be null.
_envp = args.envp;
environ = args.envp;
__init_AT_SECURE(args);
__sanitize_environment_variables();
@ -179,7 +178,7 @@ const char* linker_env_get(const char* name) {
return nullptr;
}
for (char** p = _envp; p[0] != nullptr; ++p) {
for (char** p = environ; p[0] != nullptr; ++p) {
const char* val = env_match(p[0], name);
if (val != nullptr) {
if (val[0] == '\0') {