svn commit: r233880 - in projects/armv6: lib/libc/arm/gen
lib/libthr/arch/arm/include share/mk
Olivier Houchard
cognet at FreeBSD.org
Wed Apr 4 19:36:57 UTC 2012
Author: cognet
Date: Wed Apr 4 19:36:56 2012
New Revision: 233880
URL: http://svn.freebsd.org/changeset/base/233880
Log:
Bring support for the new arm TLS model.
Submitted by: Mark Tinguely
Modified:
projects/armv6/lib/libc/arm/gen/__aeabi_read_tp.c
projects/armv6/lib/libthr/arch/arm/include/pthread_md.h
projects/armv6/share/mk/bsd.cpu.mk
Modified: projects/armv6/lib/libc/arm/gen/__aeabi_read_tp.c
==============================================================================
--- projects/armv6/lib/libc/arm/gen/__aeabi_read_tp.c Wed Apr 4 17:27:13 2012 (r233879)
+++ projects/armv6/lib/libc/arm/gen/__aeabi_read_tp.c Wed Apr 4 19:36:56 2012 (r233880)
@@ -36,7 +36,13 @@ __FBSDID("$FreeBSD$");
void *
__aeabi_read_tp()
{
+#ifdef ARM_TP_ADDRESS
void **_tp = (void **)ARM_TP_ADDRESS;
-
return (*_tp);
+#else
+ void *_tp;;
+ __asm __volatile("mrc p15, 0, %0, c13, c0, 3" \
+ : "=r" (_tp));
+ return (_tp);
+#endif
}
Modified: projects/armv6/lib/libthr/arch/arm/include/pthread_md.h
==============================================================================
--- projects/armv6/lib/libthr/arch/arm/include/pthread_md.h Wed Apr 4 17:27:13 2012 (r233879)
+++ projects/armv6/lib/libthr/arch/arm/include/pthread_md.h Wed Apr 4 19:36:56 2012 (r233880)
@@ -57,7 +57,11 @@ void _tcb_dtor(struct tcb *);
static __inline void
_tcb_set(struct tcb *tcb)
{
+#ifdef ARM_TP_ADDRESS
+ *((struct tcb **)ARM_TP_ADDRESS) = tcb; /* avoids a system call */
+#else
sysarch(ARM_SET_TP, tcb);
+#endif
}
/*
@@ -66,10 +70,15 @@ _tcb_set(struct tcb *tcb)
static __inline struct tcb *
_tcb_get(void)
{
+#ifdef ARM_TP_ADDRESS
+ return (*((struct tcb **)ARM_TP_ADDRESS));
+#else
struct tcb *tcb;
- tcb = (void*)sysarch(ARM_GET_TP, NULL);
+ __asm __volatile("mrc p15, 0, %0, c13, c0, 3" \
+ : "=r" (tcb));
return (tcb);
+#endif
}
extern struct pthread *_thr_initial;
Modified: projects/armv6/share/mk/bsd.cpu.mk
==============================================================================
--- projects/armv6/share/mk/bsd.cpu.mk Wed Apr 4 17:27:13 2012 (r233879)
+++ projects/armv6/share/mk/bsd.cpu.mk Wed Apr 4 19:36:56 2012 (r233880)
@@ -97,11 +97,13 @@ _CPUCFLAGS = -march=${CPUTYPE}
. if ${CPUTYPE} == "xscale"
#XXX: gcc doesn't seem to like -mcpu=xscale, and dies while rebuilding itself
#_CPUCFLAGS = -mcpu=xscale
-_CPUCFLAGS = -march=armv5te -D__XSCALE__
+_CPUCFLAGS = -march=armv5te -D__XSCALE__ -DARM_WANT_TP_ADDRESS
. elif ${CPUTYPE} == "armv6"
_CPUCFLAGS = -march=${CPUTYPE} -DARM_ARCH_6=1
+. elif ${CPUTYPE} == "cortexa"
+_CPUCFLAGS = -march=armv6 -DARM_ARCH_6=1 -mfpu=vfp
. else
-_CPUCFLAGS = -mcpu=${CPUTYPE}
+_CPUCFLAGS = -mcpu=${CPUTYPE} -DARM_WANT_TP_ADDRESS
. endif
. elif ${MACHINE_ARCH} == "powerpc"
. if ${CPUTYPE} == "e500"
More information about the svn-src-projects
mailing list