Author: tmunro Date: Thu Dec 10 07:13:15 2020 New Revision: 368500 URL: https://svnweb.freebsd.org/changeset/base/368500
Log: truss: Add AIO syscalls. Display the arguments of aio_read(2), aio_write(2), aio_suspend(2), aio_error(2), aio_return(2), aio_cancel(2), aio_fsync(2), aio_mlock(2), aio_waitcomplete(2) and lio_listio(2) in human-readable form. Reviewed by: asomers Differential Revision: https://reviews.freebsd.org/D27518 Modified: head/usr.bin/truss/syscall.h head/usr.bin/truss/syscalls.c Modified: head/usr.bin/truss/syscall.h ============================================================================== --- head/usr.bin/truss/syscall.h Thu Dec 10 05:50:45 2020 (r368499) +++ head/usr.bin/truss/syscall.h Thu Dec 10 07:13:15 2020 (r368500) @@ -87,6 +87,7 @@ enum Argtype { /* Encoded scalar values. */ Accessmode, Acltype, + AiofsyncOp, Atfd, Atflags, CapFcntlRights, @@ -101,6 +102,7 @@ enum Argtype { Ioctl, Kldsymcmd, Kldunloadflags, + LioMode, Madvice, Minherit, Msgflags, @@ -139,6 +141,8 @@ enum Argtype { /* Pointers to non-structures. */ Ptr, + AiocbArray, + AiocbPointer, BinString, CapRights, ExecArgs, @@ -157,6 +161,7 @@ enum Argtype { StringArray, /* Pointers to structures. */ + Aiocb, Itimerval, Kevent, Kevent11, @@ -168,6 +173,7 @@ enum Argtype { Schedparam, Sctpsndrcvinfo, Sigaction, + Sigevent, Siginfo, Sigset, Sockaddr, Modified: head/usr.bin/truss/syscalls.c ============================================================================== --- head/usr.bin/truss/syscalls.c Thu Dec 10 05:50:45 2020 (r368499) +++ head/usr.bin/truss/syscalls.c Thu Dec 10 07:13:15 2020 (r368500) @@ -39,6 +39,7 @@ __FBSDID("$FreeBSD$"); * arguments. */ +#include <sys/aio.h> #include <sys/capsicum.h> #include <sys/types.h> #define _WANT_FREEBSD11_KEVENT @@ -125,6 +126,24 @@ static struct syscall decoded_syscalls[] = { .args = { { Int, 0 }, { Sockaddr | OUT, 1 }, { Ptr | OUT, 2 } } }, { .name = "access", .ret_type = 1, .nargs = 2, .args = { { Name | IN, 0 }, { Accessmode, 1 } } }, + { .name = "aio_cancel", .ret_type = 1, .nargs = 2, + .args = { { Int, 0 }, { Aiocb, 1 } } }, + { .name = "aio_error", .ret_type = 1, .nargs = 1, + .args = { { Aiocb, 0 } } }, + { .name = "aio_fsync", .ret_type = 1, .nargs = 2, + .args = { { AiofsyncOp, 0 }, { Aiocb, 1 } } }, + { .name = "aio_mlock", .ret_type = 1, .nargs = 1, + .args = { { Aiocb, 0 } } }, + { .name = "aio_read", .ret_type = 1, .nargs = 1, + .args = { { Aiocb, 0 } } }, + { .name = "aio_return", .ret_type = 1, .nargs = 1, + .args = { { Aiocb, 0 } } }, + { .name = "aio_suspend", .ret_type = 1, .nargs = 3, + .args = { { AiocbArray, 0 }, { Int, 1 }, { Timespec, 2 } } }, + { .name = "aio_waitcomplete", .ret_type = 1, .nargs = 2, + .args = { { AiocbPointer | OUT, 0 }, { Timespec, 1 } } }, + { .name = "aio_write", .ret_type = 1, .nargs = 1, + .args = { { Aiocb, 0 } } }, { .name = "bind", .ret_type = 1, .nargs = 3, .args = { { Int, 0 }, { Sockaddr | IN, 1 }, { Socklent, 2 } } }, { .name = "bindat", .ret_type = 1, .nargs = 4, @@ -324,6 +343,9 @@ static struct syscall decoded_syscalls[] = { { .name = "linkat", .ret_type = 1, .nargs = 5, .args = { { Atfd, 0 }, { Name, 1 }, { Atfd, 2 }, { Name, 3 }, { Atflags, 4 } } }, + { .name = "lio_listio", .ret_type = 1, .nargs = 4, + .args = { { LioMode, 0 }, { AiocbArray, 1 }, { Int, 2 }, + { Sigevent, 3 } } }, { .name = "listen", .ret_type = 1, .nargs = 2, .args = { { Int, 0 }, { Int, 1 } } }, { .name = "lseek", .ret_type = 2, .nargs = 3, @@ -714,6 +736,21 @@ static struct xlat linux_socketcall_ops[] = { XEND }; +static struct xlat lio_modes[] = { + X(LIO_WAIT) X(LIO_NOWAIT) + XEND +}; + +static struct xlat lio_opcodes[] = { + X(LIO_WRITE) X(LIO_READ) X(LIO_NOP) + XEND +}; + +static struct xlat aio_fsync_ops[] = { + X(O_SYNC) + XEND +}; + #undef X #define X(a) { CLOUDABI_##a, #a }, @@ -1333,6 +1370,59 @@ print_iovec(FILE *fp, struct trussinfo *trussinfo, uin } static void +print_sigval(FILE *fp, union sigval *sv) +{ + fprintf(fp, "{ %d, %p }", sv->sival_int, sv->sival_ptr); +} + +static void +print_sigevent(FILE *fp, struct sigevent *se) +{ + fputs("{ sigev_notify=", fp); + switch (se->sigev_notify) { + case SIGEV_NONE: + fputs("SIGEV_NONE", fp); + break; + case SIGEV_SIGNAL: + fprintf(fp, "SIGEV_SIGNAL, sigev_signo=%s, sigev_value=", + strsig2(se->sigev_signo)); + print_sigval(fp, &se->sigev_value); + break; + case SIGEV_THREAD: + fputs("SIGEV_THREAD, sigev_value=", fp); + print_sigval(fp, &se->sigev_value); + break; + case SIGEV_KEVENT: + fprintf(fp, "SIGEV_KEVENT, sigev_notify_kqueue=%d, sigev_notify_kevent_flags=", + se->sigev_notify_kqueue); + print_mask_arg(sysdecode_kevent_flags, fp, se->sigev_notify_kevent_flags); + break; + case SIGEV_THREAD_ID: + fprintf(fp, "SIGEV_THREAD_ID, sigev_notify_thread_id=%d, sigev_signo=%s, sigev_value=", + se->sigev_notify_thread_id, strsig2(se->sigev_signo)); + print_sigval(fp, &se->sigev_value); + break; + default: + fprintf(fp, "%d", se->sigev_notify); + break; + } + fputs(" }", fp); +} + +static void +print_aiocb(FILE *fp, struct aiocb *cb) +{ + fprintf(fp, "{ %d,%jd,%p,%zu,%s,", + cb->aio_fildes, + cb->aio_offset, + cb->aio_buf, + cb->aio_nbytes, + xlookup(lio_opcodes, cb->aio_lio_opcode)); + print_sigevent(fp, &cb->aio_sigevent); + fputs(" }", fp); +} + +static void print_gen_cmsg(FILE *fp, struct cmsghdr *cmsghdr) { u_char *q; @@ -2115,6 +2205,15 @@ print_arg(struct syscall_args *sc, unsigned long *args print_pointer(fp, args[sc->offset]); break; } + case Sigevent: { + struct sigevent se; + + if (get_struct(pid, args[sc->offset], &se, sizeof(se)) != -1) + print_sigevent(fp, &se); + else + print_pointer(fp, args[sc->offset]); + break; + } case Kevent: { /* * XXX XXX: The size of the array is determined by either the @@ -2481,6 +2580,12 @@ print_arg(struct syscall_args *sc, unsigned long *args print_integer_arg(sysdecode_kldunload_flags, fp, args[sc->offset]); break; + case AiofsyncOp: + fputs(xlookup(aio_fsync_ops, args[sc->offset]), fp); + break; + case LioMode: + fputs(xlookup(lio_modes, args[sc->offset]), fp); + break; case Madvice: print_integer_arg(sysdecode_madvice, fp, args[sc->offset]); break; @@ -2618,6 +2723,67 @@ print_arg(struct syscall_args *sc, unsigned long *args print_iovec(fp, trussinfo, args[sc->offset], (int)args[sc->offset + 1]); break; + case Aiocb: { + struct aiocb cb; + + if (get_struct(pid, args[sc->offset], &cb, sizeof(cb)) != -1) + print_aiocb(fp, &cb); + else + print_pointer(fp, args[sc->offset]); + break; + } + case AiocbArray: { + /* + * Print argment as an array of pointers to struct aiocb, where + * the next syscall argument is the number of elements. + */ + uintptr_t cbs[16]; + unsigned int nent; + bool truncated; + + nent = args[sc->offset + 1]; + truncated = false; + if (nent > nitems(cbs)) { + nent = nitems(cbs); + truncated = true; + } + + if (get_struct(pid, args[sc->offset], cbs, sizeof(uintptr_t) * nent) != -1) { + unsigned int i; + fputs("[", fp); + for (i = 0; i < nent; ++i) { + struct aiocb cb; + if (i > 0) + fputc(',', fp); + if (get_struct(pid, cbs[i], &cb, sizeof(cb)) != -1) + print_aiocb(fp, &cb); + else + print_pointer(fp, cbs[i]); + } + if (truncated) + fputs(",...", fp); + fputs("]", fp); + } else + print_pointer(fp, args[sc->offset]); + break; + } + case AiocbPointer: { + /* + * aio_waitcomplete(2) assigns a pointer to a pointer to struct + * aiocb, so we need to handle the extra layer of indirection. + */ + uintptr_t cbp; + struct aiocb cb; + + if (get_struct(pid, args[sc->offset], &cbp, sizeof(cbp)) != -1) { + if (get_struct(pid, cbp, &cb, sizeof(cb)) != -1) + print_aiocb(fp, &cb); + else + print_pointer(fp, cbp); + } else + print_pointer(fp, args[sc->offset]); + break; + } case Sctpsndrcvinfo: { struct sctp_sndrcvinfo info; _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
