/* Target-dependent code for GNU/Linux UltraSPARC.
- Copyright (C) 2003-2016 Free Software Foundation, Inc.
+ Copyright (C) 2003-2022 Free Software Foundation, Inc.
This file is part of GDB.
#include "defs.h"
#include "frame.h"
#include "frame-unwind.h"
-#include "dwarf2-frame.h"
+#include "dwarf2/frame.h"
#include "regset.h"
#include "regcache.h"
#include "gdbarch.h"
#include "xml-syscall.h"
#include "linux-tdep.h"
+/* ADI specific si_code */
+#ifndef SEGV_ACCADI
+#define SEGV_ACCADI 3
+#endif
+#ifndef SEGV_ADIDERR
+#define SEGV_ADIDERR 4
+#endif
+#ifndef SEGV_ADIPERR
+#define SEGV_ADIPERR 5
+#endif
+
/* The syscall's XML filename for sparc 64-bit. */
#define XML_SYSCALL_FILENAME_SPARC64 "syscalls/sparc64-linux.xml"
SIGTRAMP_FRAME,
4,
{
- { 0x82102065, -1 }, /* mov __NR_rt_sigreturn, %g1 */
- { 0x91d0206d, -1 }, /* ta 0x6d */
- { TRAMP_SENTINEL_INSN, -1 }
+ { 0x82102065, ULONGEST_MAX }, /* mov __NR_rt_sigreturn, %g1 */
+ { 0x91d0206d, ULONGEST_MAX }, /* ta 0x6d */
+ { TRAMP_SENTINEL_INSN, ULONGEST_MAX }
},
sparc64_linux_sigframe_init
};
}
trad_frame_set_id (this_cache, frame_id_build (base, func));
}
+
+/* sparc64 GNU/Linux implementation of the report_signal_info
+ gdbarch hook.
+ Displays information related to ADI memory corruptions. */
+
+static void
+sparc64_linux_report_signal_info (struct gdbarch *gdbarch, struct ui_out *uiout,
+ enum gdb_signal siggnal)
+{
+ if (gdbarch_bfd_arch_info (gdbarch)->bits_per_word != 64
+ || siggnal != GDB_SIGNAL_SEGV)
+ return;
+
+ CORE_ADDR addr = 0;
+ long si_code = 0;
+
+ try
+ {
+ /* Evaluate si_code to see if the segfault is ADI related. */
+ si_code = parse_and_eval_long ("$_siginfo.si_code\n");
+
+ if (si_code >= SEGV_ACCADI && si_code <= SEGV_ADIPERR)
+ addr = parse_and_eval_long ("$_siginfo._sifields._sigfault.si_addr");
+ }
+ catch (const gdb_exception &exception)
+ {
+ return;
+ }
+
+ /* Print out ADI event based on sig_code value */
+ switch (si_code)
+ {
+ case SEGV_ACCADI: /* adi not enabled */
+ uiout->text ("\n");
+ uiout->field_string ("sigcode-meaning", _("ADI disabled"));
+ uiout->text (_(" while accessing address "));
+ uiout->field_core_addr ("bound-access", gdbarch, addr);
+ break;
+ case SEGV_ADIDERR: /* disrupting mismatch */
+ uiout->text ("\n");
+ uiout->field_string ("sigcode-meaning", _("ADI deferred mismatch"));
+ uiout->text (_(" while accessing address "));
+ uiout->field_core_addr ("bound-access", gdbarch, addr);
+ break;
+ case SEGV_ADIPERR: /* precise mismatch */
+ uiout->text ("\n");
+ uiout->field_string ("sigcode-meaning", _("ADI precise mismatch"));
+ uiout->text (_(" while accessing address "));
+ uiout->field_core_addr ("bound-access", gdbarch, addr);
+ break;
+ default:
+ break;
+ }
+
+}
+
\f
/* Return the address of a system call's alternative return
address. */
static void
sparc64_linux_write_pc (struct regcache *regcache, CORE_ADDR pc)
{
- struct gdbarch_tdep *tdep = gdbarch_tdep (get_regcache_arch (regcache));
+ gdbarch *arch = regcache->arch ();
+ sparc_gdbarch_tdep *tdep = (sparc_gdbarch_tdep *) gdbarch_tdep (arch);
ULONGEST state;
regcache_cooked_write_unsigned (regcache, tdep->pc_regnum, pc);
static LONGEST
sparc64_linux_get_syscall_number (struct gdbarch *gdbarch,
- ptid_t ptid)
+ thread_info *thread)
{
- struct regcache *regcache = get_thread_regcache (ptid);
+ struct regcache *regcache = get_thread_regcache (thread);
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
/* The content of a register. */
gdb_byte buf[8];
/* Getting the system call number from the register.
When dealing with the sparc architecture, this information
is stored at the %g1 register. */
- regcache_cooked_read (regcache, SPARC_G1_REGNUM, buf);
+ regcache->cooked_read (SPARC_G1_REGNUM, buf);
ret = extract_signed_integer (buf, 8, byte_order);
static void
sparc64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
- struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+ sparc_gdbarch_tdep *tdep = (sparc_gdbarch_tdep *) gdbarch_tdep (gdbarch);
- linux_init_abi (info, gdbarch);
+ linux_init_abi (info, gdbarch, 0);
tdep->gregset = &sparc64_linux_gregset;
tdep->sizeof_gregset = 288;
/* GNU/Linux has SVR4-style shared libraries... */
set_gdbarch_skip_trampoline_code (gdbarch, find_solib_trampoline_target);
set_solib_svr4_fetch_link_map_offsets
- (gdbarch, svr4_lp64_fetch_link_map_offsets);
+ (gdbarch, linux_lp64_fetch_link_map_offsets);
/* ...which means that we need some special handling when doing
prologue analysis. */
/* Enable TLS support. */
set_gdbarch_fetch_tls_load_module_address (gdbarch,
- svr4_fetch_objfile_link_map);
+ svr4_fetch_objfile_link_map);
/* Make sure we can single-step over signal return system calls. */
tdep->step_trap = sparc64_linux_step_trap;
/* Functions for 'catch syscall'. */
set_xml_syscall_file_name (gdbarch, XML_SYSCALL_FILENAME_SPARC64);
set_gdbarch_get_syscall_number (gdbarch,
- sparc64_linux_get_syscall_number);
+ sparc64_linux_get_syscall_number);
+ set_gdbarch_report_signal_info (gdbarch, sparc64_linux_report_signal_info);
}
-\f
-
-/* Provide a prototype to silence -Wmissing-prototypes. */
-extern void _initialize_sparc64_linux_tdep (void);
+void _initialize_sparc64_linux_tdep ();
void
-_initialize_sparc64_linux_tdep (void)
+_initialize_sparc64_linux_tdep ()
{
gdbarch_register_osabi (bfd_arch_sparc, bfd_mach_sparc_v9,
GDB_OSABI_LINUX, sparc64_linux_init_abi);
projects / binutils-gdb.git / blobdiff