Increase signal stack size on 32-bit to 16kB.
snprintf to a buffer of length PATH_MAX consumes about 7kB of stack.
Bug: http://b/35858739
Test: bionic-unit-tests --gtest_filter="*big_enough*"
Change-Id: I34a7f42c1fd2582ca0d0a9b7e7a5290bc1cc19b1
diff --git a/libc/bionic/pthread_internal.h b/libc/bionic/pthread_internal.h
index b170299..6faf5a4 100644
--- a/libc/bionic/pthread_internal.h
+++ b/libc/bionic/pthread_internal.h
@@ -141,13 +141,11 @@
__LIBC_HIDDEN__ void pthread_key_clean_all(void);
-#if defined(__LP64__)
-// SIGSTKSZ is not big enough for 64-bit arch.
-// See https://code.google.com/p/android/issues/detail?id=187064.
+// SIGSTKSZ (8kB) is not big enough.
+// snprintf to a stack buffer of size PATH_MAX consumes ~7kB of stack.
+// Also, on 64-bit, logging uses more than 8kB by itself:
+// https://code.google.com/p/android/issues/detail?id=187064
#define SIGNAL_STACK_SIZE_WITHOUT_GUARD_PAGE (16 * 1024)
-#else
-#define SIGNAL_STACK_SIZE_WITHOUT_GUARD_PAGE SIGSTKSZ
-#endif
/*
* Traditionally we gave threads a 1MiB stack. When we started