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06 May 2026 00:26:14 -0700 From: Markus Metzger To: gdb-patches@sourceware.org Cc: Keith Seitz , Eli Zaretskii , Tom Tromey Subject: [PATCH v5] gdb, btrace: support libipt v2.2 events Date: Wed, 6 May 2026 07:26:12 +0000 Message-Id: <20260506072612.3523933-1-markus.t.metzger@intel.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-BeenThere: gdb-patches@sourceware.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Gdb-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gdb-patches-bounces~public-inbox=simark.ca@sourceware.org Add support for printing new events added in libipt v2.2 originating from Event Tracing in combination with Flexible Return and Event Delivery (FRED) and from Trigger Tracing. Reviewed-By: Keith Seitz Reviewed-By: Eli Zaretskii CC: Tom Tromey --- gdb/NEWS | 4 +++ gdb/btrace.c | 69 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 73 insertions(+) diff --git a/gdb/NEWS b/gdb/NEWS index 480e1854002..573f285a73d 100644 --- a/gdb/NEWS +++ b/gdb/NEWS @@ -78,6 +78,10 @@ * The Windows native target now supports non-stop mode. This feature requires Windows 10 or later. +* GDB now supports libipt v2.2 events originating from Event Tracing (set + record btrace pt event-tracing on) on a FRED-enabled system and from + Trigger Tracing. + * New targets GNU/Linux/MicroBlaze (gdbserver) microblazeel-*linux* diff --git a/gdb/btrace.c b/gdb/btrace.c index 965e2654c7d..5349a89001a 100644 --- a/gdb/btrace.c +++ b/gdb/btrace.c @@ -1597,6 +1597,61 @@ handle_pt_insn_events (struct btrace_thread_info *btinfo, break; } #endif /* (LIBIPT_VERSION >= 0x201) */ + +#if (LIBIPT_VERSION >= 0x202) + case ptev_trig: + { + std::string aux_string + = (std::string (_("trig: trbv = ")) + + hex_string (event.variant.trig.trbv)); + + if (event.variant.trig.mult != 0) + aux_string += std::string (", mult"); + + if (event.ip_suppressed == 0) + { + pc = event.variant.trig.ip; + aux_string += (std::string (", ip = ") + hex_string (*pc)); + } + + if (event.variant.trig.icnt != 0) + aux_string += (std::string (", icnt = ") + + hex_string (event.variant.trig.icnt)); + + handle_pt_aux_insn (btinfo, aux_string, pc); + break; + } + + case ptev_swintr: + { + std::string aux_string + = (std::string (_("swintr: vector = ")) + + hex_string (event.variant.swintr.vector)); + + if (event.ip_suppressed == 0) + { + pc = event.variant.swintr.ip; + aux_string += (std::string (", ip = ") + hex_string (*pc)); + } + + handle_pt_aux_insn (btinfo, aux_string, pc); + break; + } + + case ptev_syscall: + { + std::string aux_string = std::string (_("syscall")); + + if (event.ip_suppressed == 0) + { + pc = event.variant.syscall.ip; + aux_string += (std::string (": ip = ") + hex_string (*pc)); + } + + handle_pt_aux_insn (btinfo, aux_string, pc); + break; + } +#endif /* (LIBIPT_VERSION >= 0x202) */ } } #endif /* defined (HAVE_PT_INSN_EVENT) */ @@ -3025,6 +3080,20 @@ pt_print_packet (const struct pt_packet *packet) packet->payload.evd.payload); break; #endif /* (LIBIPT_VERSION >= 0x201) */ + +#if (LIBIPT_VERSION >= 0x202) + case ppt_trig: + if (packet->payload.trig.icntv == 0) + gdb_printf ("trig 0x%x%s%s", packet->payload.trig.trbv, + (packet->payload.trig.ip != 0) ? " ip" : "", + (packet->payload.trig.mult != 0) ? " mult" : ""); + else + gdb_printf ("trig 0x%x%s%s icnt: %u", packet->payload.trig.trbv, + (packet->payload.trig.ip != 0) ? " ip" : "", + (packet->payload.trig.mult != 0) ? " mult" : "", + packet->payload.trig.icnt); + break; +#endif /* (LIBIPT_VERSION >= 0x202) */ } } -- 2.34.1 Intel Deutschland GmbH Registered Address: Dornacher Strasse 1, 85622 Feldkirchen, Germany Tel: +49 89 991 430, www.intel.de Managing Directors: Harry Demas, Jeffrey Schneiderman, Yin Chong Sorrell Chairperson of the Supervisory Board: Nicole Lau Registered Seat: Munich Commercial Register: Amtsgericht Muenchen HRB 186928