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SUSE:SLE-15-SP2:GA
gdb.27039
gdb-testsuite-support-recording-of-getrandom.patch
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File gdb-testsuite-support-recording-of-getrandom.patch of Package gdb.27039
[gdb/testsuite] Support recording of getrandom Add missing support for recording of linux syscall getrandom. Tested on x86_64-linux with native and target board unix/-m32. --- gdb/aarch64-linux-tdep.c | 2 ++ gdb/amd64-linux-tdep.c | 3 ++ gdb/amd64-linux-tdep.h | 3 +- gdb/arm-linux-tdep.c | 1 + gdb/linux-record.c | 6 ++++ gdb/linux-record.h | 1 + gdb/ppc-linux-tdep.c | 2 ++ gdb/s390-linux-tdep.c | 2 ++ gdb/testsuite/gdb.reverse/getrandom.c | 41 ++++++++++++++++++++++++ gdb/testsuite/gdb.reverse/getrandom.exp | 56 +++++++++++++++++++++++++++++++++ 10 files changed, 116 insertions(+), 1 deletion(-) diff --git a/gdb/aarch64-linux-tdep.c b/gdb/aarch64-linux-tdep.c index cb132d5a540..437fd083fa7 100644 --- a/gdb/aarch64-linux-tdep.c +++ b/gdb/aarch64-linux-tdep.c @@ -1137,6 +1137,7 @@ 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 @@ -1419,6 +1420,7 @@ 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 9788711d296..02f87ddac32 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 184b0c86f07..ef111f4ac2a 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 6aac016afb9..be9f203bd8e 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 0af1ef2a9e0..ffc6337d18a 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 219c67f888d..c70d75b0d6e 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 0b165fe2ca3..cb215f9cc51 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 56cc147a391..d4ae9275e36 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 00000000000..162de6ed81b --- /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 00000000000..b1c7d9dad80 --- /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\[5\]"
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