mirror of
https://git.freebsd.org/ports.git
synced 2025-05-21 11:33:15 -04:00
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
50 lines
1.5 KiB
Text
50 lines
1.5 KiB
Text
commit 8a528699fdc82963d528bbbbd3f3509e1472a64b
|
|
Author: John Baldwin <jhb@FreeBSD.org>
|
|
Date: Tue Mar 22 12:05:43 2022 -0700
|
|
|
|
x86-nat: Add x86_lookup_debug_reg_state.
|
|
|
|
This function returns nullptr if debug register state does not yet
|
|
exist for a given process rather than creating new state.
|
|
|
|
(cherry picked from commit b1babce7c31def7fb894875136788490b167f989)
|
|
|
|
diff --git a/gdb/x86-nat.c b/gdb/x86-nat.c
|
|
index c1e892bf564..36513dd8cfb 100644
|
|
--- gdb/x86-nat.c
|
|
+++ gdb/x86-nat.c
|
|
@@ -46,6 +46,18 @@ struct x86_dr_low_type x86_dr_low;
|
|
static std::unordered_map<pid_t,
|
|
struct x86_debug_reg_state> x86_debug_process_state;
|
|
|
|
+/* See x86-nat.h. */
|
|
+
|
|
+struct x86_debug_reg_state *
|
|
+x86_lookup_debug_reg_state (pid_t pid)
|
|
+{
|
|
+ auto it = x86_debug_process_state.find (pid);
|
|
+ if (it != x86_debug_process_state.end ())
|
|
+ return &it->second;
|
|
+
|
|
+ return nullptr;
|
|
+}
|
|
+
|
|
/* Get debug registers state for process PID. */
|
|
|
|
struct x86_debug_reg_state *
|
|
diff --git a/gdb/x86-nat.h b/gdb/x86-nat.h
|
|
index 913291a2305..d9c2a3f6e14 100644
|
|
--- gdb/x86-nat.h
|
|
+++ gdb/x86-nat.h
|
|
@@ -40,6 +40,11 @@ extern void x86_set_debug_register_length (int len);
|
|
|
|
extern void x86_cleanup_dregs (void);
|
|
|
|
+/* Return the debug register state for process PID. If no existing
|
|
+ state is found for this process, return nullptr. */
|
|
+
|
|
+struct x86_debug_reg_state *x86_lookup_debug_reg_state (pid_t pid);
|
|
+
|
|
/* Called whenever GDB is no longer debugging process PID. It deletes
|
|
data structures that keep track of debug register state. */
|
|
|