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* [binutils-gdb] Add support for NetBSD threads in alpha-bsd-nat.c
@ 2020-03-14 15:38 Kamil Rytarowski
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From: Kamil Rytarowski @ 2020-03-14 15:38 UTC (permalink / raw)
To: gdb-cvs
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=6def66f1404e58b376655f6fb622aeb9dfc0f587
commit 6def66f1404e58b376655f6fb622aeb9dfc0f587
Author: Kamil Rytarowski <n54@gmx.com>
Date: Sat Mar 14 16:36:16 2020 +0100
Add support for NetBSD threads in alpha-bsd-nat.c
NetBSD ptrace(2) accepts thread id (LWP) as the 4th argument for threads.
gdb/ChangeLog:
* alpha-bsd-nat.c (fetch_registers): New variable lwp and pass
it to the ptrace call.
* alpha-bsd-nat.c (store_registers): Likewise.
Diff:
---
gdb/ChangeLog | 6 ++++++
gdb/alpha-bsd-nat.c | 16 ++++++++++------
2 files changed, 16 insertions(+), 6 deletions(-)
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 89f43631cc1..e4b4e681977 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,9 @@
+2020-03-14 Kamil Rytarowski <n54@gmx.com>
+
+ * alpha-bsd-nat.c (fetch_registers): New variable lwp and pass
+ it to the ptrace call.
+ * alpha-bsd-nat.c (store_registers): Likewise.
+
2020-03-14 Kamil Rytarowski <n54@gmx.com>
* alpha-bsd-nat.c: Remove <sys/procfs.h> and "gregset.h" from
diff --git a/gdb/alpha-bsd-nat.c b/gdb/alpha-bsd-nat.c
index 4b14cfe3816..8a8273934c4 100644
--- a/gdb/alpha-bsd-nat.c
+++ b/gdb/alpha-bsd-nat.c
@@ -55,12 +55,14 @@ getregs_supplies (int regno)
void
alpha_bsd_nat_target::fetch_registers (struct regcache *regcache, int regno)
{
+ int lwp = regcache->ptid ().lwp ();
+
if (regno == -1 || getregs_supplies (regno))
{
struct reg gregs;
if (ptrace (PT_GETREGS, regcache->ptid ().pid (),
- (PTRACE_TYPE_ARG3) &gregs, 0) == -1)
+ (PTRACE_TYPE_ARG3) &gregs, lwp) == -1)
perror_with_name (_("Couldn't get registers"));
alphabsd_supply_reg (regcache, (char *) &gregs, regno);
@@ -74,7 +76,7 @@ alpha_bsd_nat_target::fetch_registers (struct regcache *regcache, int regno)
struct fpreg fpregs;
if (ptrace (PT_GETFPREGS, regcache->ptid ().pid (),
- (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
+ (PTRACE_TYPE_ARG3) &fpregs, lwp) == -1)
perror_with_name (_("Couldn't get floating point status"));
alphabsd_supply_fpreg (regcache, (char *) &fpregs, regno);
@@ -87,17 +89,19 @@ alpha_bsd_nat_target::fetch_registers (struct regcache *regcache, int regno)
void
alpha_bsd_nat_target::store_registers (struct regcache *regcache, int regno)
{
+ int lwp = regcache->ptid ().lwp ();
+
if (regno == -1 || getregs_supplies (regno))
{
struct reg gregs;
if (ptrace (PT_GETREGS, regcache->ptid ().pid (),
- (PTRACE_TYPE_ARG3) &gregs, 0) == -1)
+ (PTRACE_TYPE_ARG3) &gregs, lwp) == -1)
perror_with_name (_("Couldn't get registers"));
alphabsd_fill_reg (regcache, (char *) &gregs, regno);
if (ptrace (PT_SETREGS, regcache->ptid ().pid (),
- (PTRACE_TYPE_ARG3) &gregs, 0) == -1)
+ (PTRACE_TYPE_ARG3) &gregs, lwp) == -1)
perror_with_name (_("Couldn't write registers"));
if (regno != -1)
@@ -110,13 +114,13 @@ alpha_bsd_nat_target::store_registers (struct regcache *regcache, int regno)
struct fpreg fpregs;
if (ptrace (PT_GETFPREGS, regcache->ptid ().pid (),
- (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
+ (PTRACE_TYPE_ARG3) &fpregs, lwp) == -1)
perror_with_name (_("Couldn't get floating point status"));
alphabsd_fill_fpreg (regcache, (char *) &fpregs, regno);
if (ptrace (PT_SETFPREGS, regcache->ptid ().pid (),
- (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
+ (PTRACE_TYPE_ARG3) &fpregs, lwp) == -1)
perror_with_name (_("Couldn't write floating point status"));
}
}
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