bionic/libc/arch-mips/mips.mk
Elliott Hughes b30aff405a Revert "Revert "Lose the hand-written futex assembler.""
The problem with the original patch was that using syscall(3) means that
errno can be set, but pthread_create(3) was abusing the TLS errno slot as
a pthread_mutex_t for the thread startup handshake.

There was also a mistake in the check for syscall failures --- it should
have checked against -1 instead of 0 (not just because that's the default
idiom, but also here because futex(2) can legitimately return values > 0).

This patch stops abusing the TLS errno slot and adds a pthread_mutex_t to
pthread_internal_t instead. (Note that for LP64 sizeof(pthread_mutex_t) >
sizeof(uintptr_t), so we could potentially clobber other TLS slots too.)

I've also rewritten the LP32 compatibility stubs to directly reuse the
code from the .h file.

This reverts commit 75c55ff84e.

Bug: 15195455
Change-Id: I6ffb13e5cf6a35d8f59f692d94192aae9ab4593d
2014-05-28 18:31:15 -07:00

85 lines
2.6 KiB
Makefile

# mips specific configs
# These are shared by all the 32-bit targets, but not the 64-bit ones.
libc_common_src_files_mips := \
bionic/legacy_32_bit_support.cpp \
bionic/ndk_cruft.cpp \
bionic/time64.c \
# These are shared by all the 32-bit targets, but not the 64-bit ones.
libc_bionic_src_files_mips += \
bionic/mmap.cpp
libc_common_src_files_mips += \
bionic/index.cpp \
bionic/memchr.c \
bionic/memcmp.c \
bionic/memmove.c \
bionic/memrchr.c \
bionic/strchr.cpp \
bionic/strnlen.c \
bionic/strrchr.cpp \
upstream-freebsd/lib/libc/string/wcscat.c \
upstream-freebsd/lib/libc/string/wcschr.c \
upstream-freebsd/lib/libc/string/wcscmp.c \
upstream-freebsd/lib/libc/string/wcscpy.c \
upstream-freebsd/lib/libc/string/wcslen.c \
upstream-freebsd/lib/libc/string/wcsrchr.c \
upstream-freebsd/lib/libc/string/wmemcmp.c \
upstream-openbsd/lib/libc/string/bcopy.c \
upstream-openbsd/lib/libc/string/stpcpy.c \
upstream-openbsd/lib/libc/string/stpncpy.c \
upstream-openbsd/lib/libc/string/strcat.c \
upstream-openbsd/lib/libc/string/strcmp.c \
upstream-openbsd/lib/libc/string/strcpy.c \
upstream-openbsd/lib/libc/string/strlcat.c \
upstream-openbsd/lib/libc/string/strlcpy.c \
upstream-openbsd/lib/libc/string/strncat.c \
upstream-openbsd/lib/libc/string/strncmp.c \
upstream-openbsd/lib/libc/string/strncpy.c \
# Fortify implementations of libc functions.
libc_common_src_files_mips += \
bionic/__memcpy_chk.cpp \
bionic/__memset_chk.cpp \
bionic/__strcpy_chk.cpp \
bionic/__strcat_chk.cpp \
ifneq ($(ARCH_MIPS_HAS_FPU),true)
libc_common_cflags_mips := \
-DSOFTFLOAT
endif
##########################################
### CPU specific source files
libc_bionic_src_files_mips += \
arch-mips/bionic/__bionic_clone.S \
arch-mips/bionic/bzero.S \
arch-mips/bionic/cacheflush.cpp \
arch-mips/bionic/_exit_with_stack_teardown.S \
arch-mips/bionic/__get_sp.S \
arch-mips/bionic/memcmp16.S \
arch-mips/bionic/_setjmp.S \
arch-mips/bionic/setjmp.S \
arch-mips/bionic/sigsetjmp.S \
arch-mips/bionic/syscall.S \
arch-mips/bionic/vfork.S \
arch-mips/string/memcpy.S \
arch-mips/string/memset.S \
arch-mips/string/mips_strlen.c \
libc_crt_target_cflags_mips := \
$($(my_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS) \
-I$(LOCAL_PATH)/arch-mips/include
libc_crt_target_crtbegin_file_mips := \
$(LOCAL_PATH)/arch-mips/bionic/crtbegin.c
libc_crt_target_crtbegin_so_file_mips := \
$(LOCAL_PATH)/arch-common/bionic/crtbegin_so.c
libc_crt_target_so_cflags_mips := \
-fPIC