5d00c5a657
If dso uses initial exec TLS mode, rtld tries to allocate TLS in static space. If there is no space left, the dlopen(3) fails. If space if allocated, initial content from PT_TLS segment is distributed to all threads' pcbs, which was missed and caused un-initialized TLS segment for such dso after dlopen(3). The mode is auto-detected either due to the relocation used, or if the DF_STATIC_TLS dynamic flag is set. In the later case, the TLS segment is tried to allocate earlier, which increases chance of the dlopen(3) to succeed. LLD was recently fixed to properly emit the flag, ld.bdf did it always. Initial test by: dumbbell Tested by: emaste (amd64), ian (arm) Tested by: Gerald Aryeetey <aryeeteygerald_rogers.com> (arm64) Sponsored by: The FreeBSD Foundation MFC after: 2 weeks Differential revision: https://reviews.freebsd.org/D19072
78 lines
1.9 KiB
Makefile
78 lines
1.9 KiB
Makefile
# $FreeBSD$
|
|
#
|
|
# All library objects contain FreeBSD revision strings by default; they may be
|
|
# excluded as a space-saving measure. To produce a library that does
|
|
# not contain these strings, add -DSTRIP_FBSDID (see <sys/cdefs.h>) to CFLAGS
|
|
# below.
|
|
|
|
PACKAGE= clibs
|
|
SHLIBDIR?= /lib
|
|
|
|
.include <src.opts.mk>
|
|
MK_SSP= no
|
|
|
|
LIB=thr
|
|
SHLIB_MAJOR= 3
|
|
NO_WTHREAD_SAFETY=1
|
|
NO_WCAST_ALIGN.gcc=1 # for gcc 4.2
|
|
CFLAGS+=-DPTHREAD_KERNEL
|
|
CFLAGS+=-I${SRCTOP}/lib/libc/include
|
|
CFLAGS+=-I${SRCTOP}/lib/libc/${MACHINE_CPUARCH}
|
|
CFLAGS+=-I${.CURDIR}/thread
|
|
CFLAGS+=-I${SRCTOP}/include
|
|
CFLAGS+=-I${.CURDIR}/arch/${MACHINE_CPUARCH}/include
|
|
CFLAGS+=-I${.CURDIR}/sys
|
|
CFLAGS+=-I${SRCTOP}/libexec/rtld-elf
|
|
CFLAGS+=-I${SRCTOP}/libexec/rtld-elf/${MACHINE_CPUARCH}
|
|
CFLAGS+=-I${SRCTOP}/lib/libthread_db
|
|
CFLAGS+=-Winline
|
|
|
|
CFLAGS.thr_stack.c+= -Wno-cast-align
|
|
CFLAGS.rtld_malloc.c+= -Wno-cast-align
|
|
.include <bsd.compiler.mk>
|
|
.if !(${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} < 40300)
|
|
CFLAGS.thr_symbols.c+= -Wno-missing-variable-declarations
|
|
.endif
|
|
|
|
.ifndef NO_THREAD_UNWIND_STACK
|
|
CFLAGS+=-fexceptions
|
|
CFLAGS+=-D_PTHREAD_FORCED_UNWIND
|
|
.endif
|
|
|
|
LDFLAGS+=-Wl,-znodelete
|
|
|
|
VERSION_DEF=${SRCTOP}/lib/libc/Versions.def
|
|
SYMBOL_MAPS=${.CURDIR}/pthread.map
|
|
|
|
MAN= libthr.3
|
|
|
|
# enable extra internal consistency checks
|
|
CFLAGS+=-D_PTHREADS_INVARIANTS
|
|
|
|
PRECIOUSLIB=
|
|
|
|
.PATH: ${.CURDIR}/arch/${MACHINE_CPUARCH}/${MACHINE_CPUARCH}
|
|
.PATH: ${SRCTOP}/libexec/rtld-elf
|
|
|
|
.if exists(${.CURDIR}/arch/${MACHINE_CPUARCH}/Makefile.inc)
|
|
.include "${.CURDIR}/arch/${MACHINE_CPUARCH}/Makefile.inc"
|
|
.endif
|
|
.include "${.CURDIR}/sys/Makefile.inc"
|
|
.include "${.CURDIR}/thread/Makefile.inc"
|
|
SRCS+= rtld_malloc.c
|
|
|
|
.if ${MK_INSTALLLIB} != "no"
|
|
SYMLINKS+=lib${LIB}.a ${LIBDIR}/libpthread.a
|
|
.endif
|
|
.if !defined(NO_PIC)
|
|
SYMLINKS+=lib${LIB}.so ${LIBDIR}/libpthread.so
|
|
.endif
|
|
.if ${MK_PROFILE} != "no"
|
|
SYMLINKS+=lib${LIB}_p.a ${LIBDIR}/libpthread_p.a
|
|
.endif
|
|
|
|
HAS_TESTS=
|
|
SUBDIR.${MK_TESTS}+= tests
|
|
|
|
.include <bsd.lib.mk>
|