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Reassign TLS slot 2 to TLS_SLOT_APP. 

Bug: http://b/78026329
Bug: http://b/118381796
Test: mmma bionic
Change-Id: I1c50d3293206e59d54fbbfe9c9e3d6fd54dded3e
This commit is contained in:
Ryan Prichard 2019-01-23 18:47:10 -08:00
parent 822326db92
commit a0834d805c
1 changed files with 5 additions and 2 deletions
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7
libc/private/bionic_asm_tls.h
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@ -65,6 +65,9 @@
//
// - TLS_SLOT_BIONIC_TLS: Optimizes accesses to bionic_tls by one load versus
// finding it using __get_thread().
//
// - TLS_SLOT_APP: Available for use by apps in Android Q and later. (This slot
// was used for errno in P and earlier.)
#if defined(__arm__) || defined(__aarch64__)
@ -81,7 +84,7 @@
#define TLS_SLOT_BIONIC_TLS -1
#define TLS_SLOT_DTV 0
#define TLS_SLOT_THREAD_ID 1
// Slot 2 is free (was historically used for TLS_SLOT_ERRNO)
#define TLS_SLOT_APP 2 // was historically used for errno
#define TLS_SLOT_OPENGL 3
#define TLS_SLOT_OPENGL_API 4
#define TLS_SLOT_STACK_GUARD 5
@ -101,7 +104,7 @@
#define TLS_SLOT_SELF 0
#define TLS_SLOT_THREAD_ID 1
// Slot 2 is free (was historically used for TLS_SLOT_ERRNO)
#define TLS_SLOT_APP 2 // was historically used for errno
#define TLS_SLOT_OPENGL 3
#define TLS_SLOT_OPENGL_API 4
#define TLS_SLOT_STACK_GUARD 5