From: John Baldwin <jhb@FreeBSD.org>
To: binutils@sourceware.org, gdb-patches@sourceware.org
Subject: [PATCH 07/12] Fetch the NT_ARM_TLS register set for native FreeBSD/arm processes.
Date: Wed, 23 Mar 2022 14:00:46 -0700 [thread overview]
Message-ID: <20220323210048.25525-8-jhb@FreeBSD.org> (raw)
In-Reply-To: <20220323210048.25525-1-jhb@FreeBSD.org>
This permits resolving TLS variables.
---
gdb/arm-fbsd-nat.c | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)
diff --git a/gdb/arm-fbsd-nat.c b/gdb/arm-fbsd-nat.c
index c32924de735..6b5befc3a05 100644
--- a/gdb/arm-fbsd-nat.c
+++ b/gdb/arm-fbsd-nat.c
@@ -18,8 +18,11 @@
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
+#include "inferior.h"
#include "target.h"
+#include "elf/common.h"
+
#include <sys/types.h>
#include <sys/ptrace.h>
#include <machine/reg.h>
@@ -49,6 +52,9 @@ arm_fbsd_nat_target::fetch_registers (struct regcache *regcache, int regnum)
fetch_register_set<struct vfpreg> (regcache, regnum, PT_GETVFPREGS,
&arm_fbsd_vfpregset);
#endif
+#ifdef PT_GETREGSET
+ fetch_regset<uint32_t> (regcache, regnum, NT_ARM_TLS, &arm_fbsd_tlsregset);
+#endif
}
/* Store register REGNUM back into the inferior. If REGNUM is -1, do
@@ -63,6 +69,9 @@ arm_fbsd_nat_target::store_registers (struct regcache *regcache, int regnum)
store_register_set<struct vfpreg> (regcache, regnum, PT_GETVFPREGS,
PT_SETVFPREGS, &arm_fbsd_vfpregset);
#endif
+#ifdef PT_GETREGSET
+ store_regset<uint32_t> (regcache, regnum, NT_ARM_TLS, &arm_fbsd_tlsregset);
+#endif
}
/* Implement the to_read_description method. */
@@ -71,8 +80,12 @@ const struct target_desc *
arm_fbsd_nat_target::read_description ()
{
const struct target_desc *desc;
+ bool tls = false;
- desc = arm_fbsd_read_description_auxv (this, false);
+#ifdef PT_GETREGSET
+ tls = have_regset (inferior_ptid, NT_ARM_TLS) != 0;
+#endif
+ desc = arm_fbsd_read_description_auxv (this, tls);
if (desc == NULL)
desc = this->beneath ()->read_description ();
return desc;
--
2.34.1
next prev parent reply other threads:[~2022-03-23 21:00 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-23 21:00 [PATCH 00/12] * Support for Thread Local Storage (TLS) variables on FreeBSD arm and aarch64 architectures John Baldwin
2022-03-23 21:00 ` [PATCH 01/12] Handle another edge case for TLS variable lookups John Baldwin
2022-03-23 23:55 ` John Baldwin
2022-03-23 21:00 ` [PATCH 02/12] fbsd-nat: Add helper routines for register sets using PT_[G]SETREGSET John Baldwin
2022-03-24 8:51 ` Luis Machado
2022-03-24 17:45 ` John Baldwin
2022-03-23 21:00 ` [PATCH 03/12] Create pseudo sections for NT_ARM_TLS notes on FreeBSD John Baldwin
2022-03-23 21:00 ` [PATCH 04/12] Add an arm-tls feature which includes the tpidruro register from CP15 John Baldwin
2022-04-04 8:01 ` Luis Machado
2022-04-12 23:36 ` John Baldwin
2022-04-14 10:23 ` Luis Machado
2022-04-19 16:18 ` John Baldwin
2022-04-20 6:59 ` Luis Machado
2022-03-23 21:00 ` [PATCH 05/12] Read the tpidruro register from NT_ARM_TLS core dump notes on FreeBSD/arm John Baldwin
2022-03-23 21:00 ` [PATCH 06/12] Support TLS variables " John Baldwin
2022-03-23 21:00 ` John Baldwin [this message]
2022-03-23 21:00 ` [PATCH 08/12] Add an aarch64-tls feature which includes the tpidr register John Baldwin
2022-03-28 10:16 ` Luis Machado
2022-04-01 23:30 ` John Baldwin
2022-04-04 8:06 ` Luis Machado
2022-04-04 12:18 ` Luis Machado
2022-05-03 21:14 ` Luis Machado
2022-03-23 21:00 ` [PATCH 09/12] Read the tpidr register from NT_ARM_TLS core dump notes on FreeBSD/Aarch64 John Baldwin
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