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Add support for NetBSD threads in arm-nbsd-nat.c 

NetBSD ptrace(2) accepts thread id (LWP) as the 4th argument for threads.

gdb/ChangeLog:

	* arm-nbsd-nat.c (fetch_register): New variable lwp and pass
	it to the ptrace call.
	* arm-nbsd-nat.c (fetch_fp_register): Likewise.
	* arm-nbsd-nat.c (fetch_fp_regs): Likewise.
	* arm-nbsd-nat.c (store_register): Likewise.
	* arm-nbsd-nat.c (store_regs): Likewise.
	* arm-nbsd-nat.c (store_fp_register): Likewise.
	* arm-nbsd-nat.c (store_fp_regs): Likewise.
This commit is contained in:
Kamil Rytarowski 2020-03-14 15:44:28 +01:00
parent 6018d381a0
commit 75c56d3d12
2 changed files with 28 additions and 9 deletions
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11
gdb/ChangeLog
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@ -1,3 +1,14 @@
2020-03-14 Kamil Rytarowski <n54@gmx.com>
* arm-nbsd-nat.c (fetch_register): New variable lwp and pass
it to the ptrace call.
* arm-nbsd-nat.c (fetch_fp_register): Likewise.
* arm-nbsd-nat.c (fetch_fp_regs): Likewise.
* arm-nbsd-nat.c (store_register): Likewise.
* arm-nbsd-nat.c (store_regs): Likewise.
* arm-nbsd-nat.c (store_fp_register): Likewise.
* arm-nbsd-nat.c (store_fp_regs): Likewise.
2020-03-14 Kamil Rytarowski <n54@gmx.com>
* arm-nbsd-nat.c (arm_netbsd_nat_target): Inherit from

26
gdb/arm-nbsd-nat.c
View File

@ -66,9 +66,10 @@ fetch_register (struct regcache *regcache, int regno)
{
struct reg inferior_registers;
int ret;
int lwp = regcache->ptid ().lwp ();
ret = ptrace (PT_GETREGS, regcache->ptid ().pid (),
(PTRACE_TYPE_ARG3) &inferior_registers, 0);
(PTRACE_TYPE_ARG3) &inferior_registers, lwp);
if (ret < 0)
{
@ -83,8 +84,10 @@ static void
fetch_fp_register (struct regcache *regcache, int regno)
{
struct fpreg inferior_fp_registers;
int lwp = regcache->ptid ().lwp ();
int ret = ptrace (PT_GETFPREGS, regcache->ptid ().pid (),
(PTRACE_TYPE_ARG3) &inferior_fp_registers, 0);
(PTRACE_TYPE_ARG3) &inferior_fp_registers, lwp);
struct vfpreg &vfp = inferior_fp_registers.fpr_vfp;
@ -111,11 +114,12 @@ static void
fetch_fp_regs (struct regcache *regcache)
{
struct fpreg inferior_fp_registers;
int lwp = regcache->ptid ().lwp ();
int ret;
int regno;
ret = ptrace (PT_GETFPREGS, regcache->ptid ().pid (),
(PTRACE_TYPE_ARG3) &inferior_fp_registers, 0);
(PTRACE_TYPE_ARG3) &inferior_fp_registers, lwp);
if (ret < 0)
{
@ -149,10 +153,11 @@ store_register (const struct regcache *regcache, int regno)
{
struct gdbarch *gdbarch = regcache->arch ();
struct reg inferior_registers;
int lwp = regcache->ptid ().lwp ();
int ret;
ret = ptrace (PT_GETREGS, regcache->ptid ().pid (),
(PTRACE_TYPE_ARG3) &inferior_registers, 0);
(PTRACE_TYPE_ARG3) &inferior_registers, lwp);
if (ret < 0)
{
@ -210,7 +215,7 @@ store_register (const struct regcache *regcache, int regno)
}
ret = ptrace (PT_SETREGS, regcache->ptid ().pid (),
(PTRACE_TYPE_ARG3) &inferior_registers, 0);
(PTRACE_TYPE_ARG3) &inferior_registers, lwp);
if (ret < 0)
warning (_("unable to write register %d to inferior"), regno);
@ -221,6 +226,7 @@ store_regs (const struct regcache *regcache)
{
struct gdbarch *gdbarch = regcache->arch ();
struct reg inferior_registers;
int lwp = regcache->ptid ().lwp ();
int ret;
int regno;
@ -252,7 +258,7 @@ store_regs (const struct regcache *regcache)
}
ret = ptrace (PT_SETREGS, regcache->ptid ().pid (),
(PTRACE_TYPE_ARG3) &inferior_registers, 0);
(PTRACE_TYPE_ARG3) &inferior_registers, lwp);
if (ret < 0)
warning (_("unable to store general registers"));
@ -262,8 +268,9 @@ static void
store_fp_register (const struct regcache *regcache, int regno)
{
struct fpreg inferior_fp_registers;
int lwp = regcache->ptid ().lwp ();
int ret = ptrace (PT_GETFPREGS, regcache->ptid ().pid (),
(PTRACE_TYPE_ARG3) &inferior_fp_registers, 0);
(PTRACE_TYPE_ARG3) &inferior_fp_registers, lwp);
struct vfpreg &vfp = inferior_fp_registers.fpr_vfp;
if (ret < 0)
@ -285,7 +292,7 @@ store_fp_register (const struct regcache *regcache, int regno)
warning (_("Invalid register number."));
ret = ptrace (PT_SETFPREGS, regcache->ptid ().pid (),
(PTRACE_TYPE_ARG3) &inferior_fp_registers, 0);
(PTRACE_TYPE_ARG3) &inferior_fp_registers, lwp);
if (ret < 0)
warning (_("unable to write register %d to inferior"), regno);
@ -295,6 +302,7 @@ static void
store_fp_regs (const struct regcache *regcache)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (regcache->arch ());
int lwp = regcache->ptid ().lwp ();
if (tdep->vfp_register_count == 0)
return;
@ -307,7 +315,7 @@ store_fp_regs (const struct regcache *regcache)
(char *) &fpregs.fpr_vfp.vfp_fpscr);
int ret = ptrace (PT_SETFPREGS, regcache->ptid ().pid (),
(PTRACE_TYPE_ARG3) &fpregs, 0);
(PTRACE_TYPE_ARG3) &fpregs, lwp);
if (ret < 0)
warning (_("unable to store floating-point registers"));