46 lines
1.9 KiB
Diff
46 lines
1.9 KiB
Diff
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From 1bbcd2144710c4b1daa9c404df0ebc80c3461747 Mon Sep 17 00:00:00 2001
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From: Ilya Leoshkevich <iii@linux.ibm.com>
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Date: Thu, 22 Jun 2023 01:03:04 +0200
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Subject: [PATCH 11/12] gdb: support rseq auxvs
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Linux kernel commit commit 317c8194e6ae ("rseq: Introduce feature size
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and alignment ELF auxiliary vector entries") introduced two new auxvs:
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AT_RSEQ_FEATURE_SIZE and AT_RSEQ_ALIGN. Support them in GDB. This
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fixes auxv.exp on kernels >= v6.3.
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---
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gdb/auxv.c | 4 ++++
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include/elf/common.h | 2 ++
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2 files changed, 6 insertions(+)
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diff --git a/gdb/auxv.c b/gdb/auxv.c
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index 812b2807554..3ce5ccd3342 100644
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--- a/gdb/auxv.c
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+++ b/gdb/auxv.c
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@@ -493,6 +493,10 @@ default_print_auxv_entry (struct gdbarch *gdbarch, struct ui_file *file,
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AUXV_FORMAT_STR);
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TAG (AT_RANDOM, _("Address of 16 random bytes"), AUXV_FORMAT_HEX);
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TAG (AT_HWCAP2, _("Extension of AT_HWCAP"), AUXV_FORMAT_HEX);
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+ TAG (AT_RSEQ_FEATURE_SIZE, _("rseq supported feature size"),
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+ AUXV_FORMAT_HEX);
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+ TAG (AT_RSEQ_ALIGN, _("rseq allocation alignment"),
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+ AUXV_FORMAT_HEX);
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TAG (AT_EXECFN, _("File name of executable"), AUXV_FORMAT_STR);
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TAG (AT_SECURE, _("Boolean, was exec setuid-like?"), AUXV_FORMAT_DEC);
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TAG (AT_SYSINFO, _("Special system info/entry points"), AUXV_FORMAT_HEX);
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diff --git a/include/elf/common.h b/include/elf/common.h
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index 16587f6fb06..a37b1f9a264 100644
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--- a/include/elf/common.h
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+++ b/include/elf/common.h
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@@ -1353,6 +1353,8 @@
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may differ from AT_PLATFORM. */
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#define AT_RANDOM 25 /* Address of 16 random bytes. */
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#define AT_HWCAP2 26 /* Extension of AT_HWCAP. */
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+#define AT_RSEQ_FEATURE_SIZE 27 /* rseq supported feature size */
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+#define AT_RSEQ_ALIGN 28 /* rseq allocation alignment */
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#define AT_EXECFN 31 /* Filename of executable. */
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/* Pointer to the global system page used for system calls and other
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nice things. */
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--
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2.35.3
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