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Add support for NetBSD threads in alpha-bsd-nat.c

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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.
This commit is contained in:
Kamil Rytarowski
2020-03-14 16:36:16 +01:00
parent 66eaca97eb
commit 6def66f140
2 changed files with 16 additions and 6 deletions
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16
gdb/alpha-bsd-nat.c
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@@ -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"));
}
}