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authorTom de Vries <tdevries@suse.de>2022-05-11 08:35:33 +0200
committerTom de Vries <tdevries@suse.de>2022-05-11 08:35:33 +0200
commitd423425393e4ef27cabdda4134ae27905a18fcf7 (patch)
treef6df5aaa65dd53bee4b58ba1769abbbe660fceae /gdb
parent0dfdb5234a22308c5d1e732652eeee7fa6f608c7 (diff)
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[gdb/record] Handle statx system call
When running test-case gdb.reverse/fstatat-reverse.exp with target board unix/-m32 on openSUSE Tumbleweed, I run into: ... (gdb) PASS: gdb.reverse/fstatat-reverse.exp: set breakpoint at marker2 continue^M Continuing.^M Process record and replay target doesn't support syscall number 383^M Process record: failed to record execution log.^M ^M Program stopped.^M 0xf7fc5555 in __kernel_vsyscall ()^M (gdb) FAIL: gdb.reverse/fstatat-reverse.exp: continue to breakpoint: marker2 ... The problems is that while with native we're trying to record these syscalls (showing strace output): ... openat(AT_FDCWD, "/", O_RDONLY|O_PATH) = 3 newfstatat(3, ".", {st_mode=S_IFDIR|0755, st_size=146, ...}, 0) = 0 ... with unix/-m32 we have instead: ... openat(AT_FDCWD, "/", O_RDONLY|O_PATH) = 3 statx(3, ".", AT_STATX_SYNC_AS_STAT|AT_NO_AUTOMOUNT, STATX_BASIC_STATS, \ {stx_mask=STATX_ALL|STATX_MNT_ID, stx_attributes=STATX_ATTR_MOUNT_ROOT, \ stx_mode=S_IFDIR|0755, stx_size=146, ...}) = 0 ... and statx is not supported. Fix this by adding support for recording syscall statx. Tested on x86_64-linux. Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=28461
Diffstat (limited to 'gdb')
-rw-r--r--gdb/linux-record.c6
-rw-r--r--gdb/linux-record.h1
2 files changed, 7 insertions, 0 deletions
diff --git a/gdb/linux-record.c b/gdb/linux-record.c
index ea858df..1e8e3c9 100644
--- a/gdb/linux-record.c
+++ b/gdb/linux-record.c
@@ -1046,6 +1046,12 @@ Do you want to stop the program?"),
return -1;
break;
+ case gdb_sys_statx:
+ regcache_raw_read_unsigned (regcache, tdep->arg5, &tmpulongest);
+ if (record_full_arch_list_add_mem ((CORE_ADDR) tmpulongest, 256))
+ return -1;
+ break;
+
case gdb_sys_uname:
if (record_mem_at_reg (regcache, tdep->arg1,
tdep->size_old_utsname))
diff --git a/gdb/linux-record.h b/gdb/linux-record.h
index 07f0c5a..219c67f 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_statx = 383,
gdb_sys_socket = 500,
gdb_sys_connect = 501,
gdb_sys_accept = 502,