From 6def66f1404e58b376655f6fb622aeb9dfc0f587 Mon Sep 17 00:00:00 2001 From: Kamil Rytarowski Date: Sat, 14 Mar 2020 16:36:16 +0100 Subject: [PATCH] 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. --- 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 + + * 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 * alpha-bsd-nat.c: Remove 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")); } } -- 2.30.2