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-rw-r--r--gdb/aarch64-linux-tdep.c2
-rw-r--r--gdb/amd64-linux-tdep.c3
-rw-r--r--gdb/amd64-linux-tdep.h3
-rw-r--r--gdb/arm-linux-tdep.c1
-rw-r--r--gdb/linux-record.c6
-rw-r--r--gdb/linux-record.h1
-rw-r--r--gdb/ppc-linux-tdep.c2
-rw-r--r--gdb/s390-linux-tdep.c2
-rw-r--r--gdb/testsuite/gdb.reverse/getrandom.c41
-rw-r--r--gdb/testsuite/gdb.reverse/getrandom.exp56
10 files changed, 116 insertions, 1 deletions
diff --git a/gdb/aarch64-linux-tdep.c b/gdb/aarch64-linux-tdep.c
index 453692d..5ed7353 100644
--- a/gdb/aarch64-linux-tdep.c
+++ b/gdb/aarch64-linux-tdep.c
@@ -1159,6 +1159,7 @@ enum aarch64_syscall {
aarch64_sys_finit_module = 273,
aarch64_sys_sched_setattr = 274,
aarch64_sys_sched_getattr = 275,
+ aarch64_sys_getrandom = 278
};
/* aarch64_canonicalize_syscall maps syscall ids from the native AArch64
@@ -1441,6 +1442,7 @@ aarch64_canonicalize_syscall (enum aarch64_syscall syscall_number)
UNSUPPORTED_SYSCALL_MAP (finit_module);
UNSUPPORTED_SYSCALL_MAP (sched_setattr);
UNSUPPORTED_SYSCALL_MAP (sched_getattr);
+ SYSCALL_MAP (getrandom);
default:
return gdb_sys_no_syscall;
}
diff --git a/gdb/amd64-linux-tdep.c b/gdb/amd64-linux-tdep.c
index 9a0759d..18a0c3f 100644
--- a/gdb/amd64-linux-tdep.c
+++ b/gdb/amd64-linux-tdep.c
@@ -463,6 +463,9 @@ amd64_canonicalize_syscall (enum amd64_syscall syscall_number)
case amd64_sys_pipe2:
return gdb_sys_pipe2;
+ case amd64_sys_getrandom:
+ return gdb_sys_getrandom;
+
case amd64_sys_select:
case amd64_x32_sys_select:
return gdb_sys_select;
diff --git a/gdb/amd64-linux-tdep.h b/gdb/amd64-linux-tdep.h
index 184b0c8..ef111f4 100644
--- a/gdb/amd64-linux-tdep.h
+++ b/gdb/amd64-linux-tdep.h
@@ -320,7 +320,8 @@ enum amd64_syscall {
amd64_sys_sync_file_range = 277,
amd64_sys_vmsplice = 278,
amd64_sys_move_pages = 279,
- amd64_sys_pipe2 = 293
+ amd64_sys_pipe2 = 293,
+ amd64_sys_getrandom = 318
};
/* Enum that defines the syscall identifiers for x32 linux.
diff --git a/gdb/arm-linux-tdep.c b/gdb/arm-linux-tdep.c
index f299e96..33406f9 100644
--- a/gdb/arm-linux-tdep.c
+++ b/gdb/arm-linux-tdep.c
@@ -1610,6 +1610,7 @@ arm_canonicalize_syscall (int syscall)
case 378: return gdb_sys_kcmp;
case 379: return gdb_sys_finit_module;
*/
+ case 384: return gdb_sys_getrandom;
case 983041: /* ARM_breakpoint */ return gdb_sys_no_syscall;
case 983042: /* ARM_cacheflush */ return gdb_sys_no_syscall;
case 983043: /* ARM_usr26 */ return gdb_sys_no_syscall;
diff --git a/gdb/linux-record.c b/gdb/linux-record.c
index 1e8e3c9..a500bc9 100644
--- a/gdb/linux-record.c
+++ b/gdb/linux-record.c
@@ -356,6 +356,12 @@ record_linux_system_call (enum gdb_syscall syscall,
return -1;
break;
+ case gdb_sys_getrandom:
+ regcache_raw_read_unsigned (regcache, tdep->arg2, &tmpulongest);
+ if (record_mem_at_reg (regcache, tdep->arg1, tmpulongest))
+ return -1;
+ break;
+
case gdb_sys_times:
if (record_mem_at_reg (regcache, tdep->arg1, tdep->size_tms))
return -1;
diff --git a/gdb/linux-record.h b/gdb/linux-record.h
index 39d7d4b..56c111c 100644
--- a/gdb/linux-record.h
+++ b/gdb/linux-record.h
@@ -510,6 +510,7 @@ enum gdb_syscall {
gdb_sys_dup3 = 330,
gdb_sys_pipe2 = 331,
gdb_sys_inotify_init1 = 332,
+ gdb_sys_getrandom = 355,
gdb_sys_statx = 383,
gdb_sys_socket = 500,
gdb_sys_connect = 501,
diff --git a/gdb/ppc-linux-tdep.c b/gdb/ppc-linux-tdep.c
index bf95f39..2f28337 100644
--- a/gdb/ppc-linux-tdep.c
+++ b/gdb/ppc-linux-tdep.c
@@ -1406,6 +1406,8 @@ ppc_canonicalize_syscall (int syscall, int wordsize)
result = gdb_sys_recvfrom;
else if (syscall == 342)
result = gdb_sys_recvmsg;
+ else if (syscall == 359)
+ result = gdb_sys_getrandom;
return (enum gdb_syscall) result;
}
diff --git a/gdb/s390-linux-tdep.c b/gdb/s390-linux-tdep.c
index 9d4e2d0..5be4984 100644
--- a/gdb/s390-linux-tdep.c
+++ b/gdb/s390-linux-tdep.c
@@ -787,6 +787,8 @@ s390_canonicalize_syscall (int syscall, enum s390_abi_kind abi)
/* ioprio_set .. epoll_pwait */
else if (syscall >= 282 && syscall <= 312)
ret = syscall + 7;
+ else if (syscall == 349)
+ ret = gdb_sys_getrandom;
else
ret = gdb_sys_no_syscall;
diff --git a/gdb/testsuite/gdb.reverse/getrandom.c b/gdb/testsuite/gdb.reverse/getrandom.c
new file mode 100644
index 0000000..162de6e
--- /dev/null
+++ b/gdb/testsuite/gdb.reverse/getrandom.c
@@ -0,0 +1,41 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+ Copyright 2022 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include <sys/random.h>
+
+void
+marker1 (void)
+{
+}
+
+void
+marker2 (void)
+{
+}
+
+unsigned char buf[6];
+
+int
+main (void)
+{
+ buf[0] = 0xff;
+ buf[5] = 0xff;
+ marker1 ();
+ volatile ssize_t r = getrandom (&buf[1], 4, 0);
+ marker2 ();
+ return 0;
+}
diff --git a/gdb/testsuite/gdb.reverse/getrandom.exp b/gdb/testsuite/gdb.reverse/getrandom.exp
new file mode 100644
index 0000000..b1c7d9d
--- /dev/null
+++ b/gdb/testsuite/gdb.reverse/getrandom.exp
@@ -0,0 +1,56 @@
+# Copyright 2022 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+# This file is part of the gdb testsuite.
+
+#
+# This test tests getrandom syscall for reverse execution.
+#
+
+if ![supports_reverse] {
+ return
+}
+
+standard_testfile
+
+if { [prepare_for_testing "failed to prepare" $testfile $srcfile] } {
+ return -1
+}
+
+runto_main
+
+if [supports_process_record] {
+ # Activate process record/replay
+ gdb_test_no_output "record" "turn on process record"
+}
+
+gdb_test "break marker2" \
+ "Breakpoint $decimal at $hex: file .*$srcfile, line $decimal.*" \
+ "set breakpoint at marker2"
+
+gdb_continue_to_breakpoint "marker2" ".*$srcfile:.*"
+
+gdb_test "break marker1" \
+ "Breakpoint $decimal at $hex: file .*$srcfile, line $decimal.*" \
+ "set breakpoint at marker1"
+
+gdb_test "reverse-continue" ".*$srcfile:$decimal.*" "reverse to marker1"
+
+gdb_test "print (unsigned)buf\[0\]" ".* = 255" "check buf\[0\]"
+gdb_test "print (unsigned)buf\[1\]" ".* = 0" "check buf\[1\]"
+gdb_test "print (unsigned)buf\[2\]" ".* = 0" "check buf\[2\]"
+gdb_test "print (unsigned)buf\[3\]" ".* = 0" "check buf\[3\]"
+gdb_test "print (unsigned)buf\[4\]" ".* = 0" "check buf\[4\]"
+gdb_test "print (unsigned)buf\[5\]" ".* = 255" "check buf\[5\]"
generated by cgit v1.1 at 2024-10-11 03:18:46 +0000