From a879b4d5a683f8dbebae8cf98297ee4a2db2e9e1 Mon Sep 17 00:00:00 2001 From: John Baldwin Date: Thu, 26 Mar 2020 09:48:28 -0700 Subject: [PATCH] Support AT_BSDFLAGS on FreeBSD. FreeBSD's kernel recently added a new ELF auxiliary vector entry holding a mask of software features provided by the kernel. This change fixes 'info auxv' to report the name and description for this vector entry instead of '???'. include/ChangeLog: * elf/common.h (AT_FREEBSD_BSDFLAGS): Define. gdb/ChangeLog: * fbsd-tdep.c (fbsd_print_auxv_entry): Handle AT_FREEBSD_BSDFLAGS. --- gdb/ChangeLog | 4 ++++ gdb/fbsd-tdep.c | 1 + include/ChangeLog | 4 ++++ include/elf/common.h | 1 + 4 files changed, 10 insertions(+) diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 049f52d3cc3..10a3548fd4c 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,7 @@ +2020-03-26 John Baldwin + + * fbsd-tdep.c (fbsd_print_auxv_entry): Handle AT_FREEBSD_BSDFLAGS. + 2020-03-26 Tom Tromey * dwarf2/read.c (handle_data_member_location, dwarf2_add_field) diff --git a/gdb/fbsd-tdep.c b/gdb/fbsd-tdep.c index ffffb187008..54f5149e5c4 100644 --- a/gdb/fbsd-tdep.c +++ b/gdb/fbsd-tdep.c @@ -1597,6 +1597,7 @@ fbsd_print_auxv_entry (struct gdbarch *gdbarch, struct ui_file *file, TAG (EHDRFLAGS, _("ELF header e_flags"), AUXV_FORMAT_HEX); TAG (HWCAP, _("Machine-dependent CPU capability hints"), AUXV_FORMAT_HEX); TAG (HWCAP2, _("Extension of AT_HWCAP"), AUXV_FORMAT_HEX); + TAG (BSDFLAGS, _("ELF BSD flags"), AUXV_FORMAT_HEX); } fprint_auxv_entry (file, name, description, format, type, val); diff --git a/include/ChangeLog b/include/ChangeLog index 3d26a570cac..d7e5ada9327 100644 --- a/include/ChangeLog +++ b/include/ChangeLog @@ -1,3 +1,7 @@ +2020-03-26 John Baldwin + + * elf/common.h (AT_FREEBSD_BSDFLAGS): Define. + 2020-03-24 Martin Liska PR lto/94249 diff --git a/include/elf/common.h b/include/elf/common.h index 1c84ccb430e..6741c34a007 100644 --- a/include/elf/common.h +++ b/include/elf/common.h @@ -1251,6 +1251,7 @@ #define AT_FREEBSD_EHDRFLAGS 24 /* e_flags field from ELF header. */ #define AT_FREEBSD_HWCAP 25 /* CPU feature flags. */ #define AT_FREEBSD_HWCAP2 26 /* CPU feature flags 2. */ +#define AT_FREEBSD_BSDFLAGS 27 /* ELF BSD Flags. */ #define AT_SUN_UID 2000 /* Effective user ID. */ #define AT_SUN_RUID 2001 /* Real user ID. */ -- 2.30.2