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1c25ded0af
One notable feature included in 12.1 is async target support permitting the use of commands like continue&. In addition, this commit backports various post-12 commits to add support for hardware breakpoints/watchpoints on aarch64, support for resolving TLS variables from core dumps on amd64 and i386 via the recently added NT_X86_SEGBASES core dump note, and support for resolving TLS variables on arm and aarch64 via the recently added NT_ARM_TLS register set. Reviewed by: pizzamig Differential Revision: https://reviews.freebsd.org/D35111
53 lines
1.8 KiB
Text
53 lines
1.8 KiB
Text
commit 28207615d3f3d639a71df51be9ceed3033bb17c6
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Author: John Baldwin <jhb@FreeBSD.org>
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Date: Tue Mar 22 12:05:43 2022 -0700
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fbsd-nat: Add a low_prepare_to_resume virtual method.
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This method can be overridden by architecture-specific targets to
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perform additional work before a thread is resumed.
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(cherry picked from commit a3627b54280ba306766f2689fb35442f24c4c313)
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diff --git a/gdb/fbsd-nat.c b/gdb/fbsd-nat.c
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index 2bc7937a38b..934fdbad6ef 100644
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--- gdb/fbsd-nat.c
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+++ gdb/fbsd-nat.c
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@@ -1138,6 +1138,8 @@ fbsd_nat_target::resume (ptid_t ptid, int step, enum gdb_signal signo)
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perror_with_name (request == PT_RESUME ?
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("ptrace (PT_RESUME)") :
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("ptrace (PT_SUSPEND)"));
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+ if (request == PT_RESUME)
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+ low_prepare_to_resume (tp);
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}
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}
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else
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@@ -1145,8 +1147,11 @@ fbsd_nat_target::resume (ptid_t ptid, int step, enum gdb_signal signo)
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/* If ptid is a wildcard, resume all matching threads (they won't run
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until the process is continued however). */
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for (thread_info *tp : all_non_exited_threads (this, ptid))
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- if (ptrace (PT_RESUME, tp->ptid.lwp (), NULL, 0) == -1)
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- perror_with_name (("ptrace (PT_RESUME)"));
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+ {
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+ if (ptrace (PT_RESUME, tp->ptid.lwp (), NULL, 0) == -1)
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+ perror_with_name (("ptrace (PT_RESUME)"));
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+ low_prepare_to_resume (tp);
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+ }
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ptid = inferior_ptid;
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}
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diff --git a/gdb/fbsd-nat.h b/gdb/fbsd-nat.h
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index 6028aebfccc..82f7ee47949 100644
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--- gdb/fbsd-nat.h
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+++ gdb/fbsd-nat.h
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@@ -119,6 +119,10 @@ class fbsd_nat_target : public inf_ptrace_target
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virtual void low_delete_thread (thread_info *)
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{}
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+ /* Hook to call prior to resuming a thread. */
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+ virtual void low_prepare_to_resume (thread_info *)
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+ {}
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+
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protected:
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void post_startup_inferior (ptid_t) override;
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