X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=instrumentation%2Fsyscalls%2Fheaders%2Fsyscalls_pointers_override.h;h=c081b217ca1227661ac43998d4e75265f8c90989;hb=c8dfb72431505d5f01a6f090f3f7427d9ca6fe94;hp=6b12a5623fa4e059c666f56c18f9c55018a011be;hpb=a6370148ab4a6f210c29372febcffd87b440cc50;p=lttng-modules.git diff --git a/instrumentation/syscalls/headers/syscalls_pointers_override.h b/instrumentation/syscalls/headers/syscalls_pointers_override.h index 6b12a562..c081b217 100644 --- a/instrumentation/syscalls/headers/syscalls_pointers_override.h +++ b/instrumentation/syscalls/headers/syscalls_pointers_override.h @@ -1,3 +1,5 @@ +/* SPDX-License-Identifier: (GPL-2.0 or LGPL-2.1) */ + #ifndef CREATE_SYSCALL_TABLE #define OVERRIDE_32_execve @@ -100,9 +102,8 @@ SC_LTTNG_TRACEPOINT_EVENT(pipe2, } \ \ if (inp) { \ - tp_locvar->fds_in = kmalloc( \ - tp_locvar->nr_ulong * sizeof(unsigned long), \ - GFP_ATOMIC | GFP_NOWAIT); \ + tp_locvar->fds_in = lttng_tp_mempool_alloc( \ + tp_locvar->nr_ulong * sizeof(unsigned long)); \ if (!tp_locvar->fds_in) \ goto error; \ \ @@ -113,9 +114,8 @@ SC_LTTNG_TRACEPOINT_EVENT(pipe2, goto error; \ } \ if (outp) { \ - tp_locvar->fds_out = kmalloc( \ - tp_locvar->nr_ulong * sizeof(unsigned long), \ - GFP_ATOMIC | GFP_NOWAIT); \ + tp_locvar->fds_out = lttng_tp_mempool_alloc( \ + tp_locvar->nr_ulong * sizeof(unsigned long)); \ if (!tp_locvar->fds_out) \ goto error; \ \ @@ -126,9 +126,8 @@ SC_LTTNG_TRACEPOINT_EVENT(pipe2, goto error; \ } \ if (exp) { \ - tp_locvar->fds_ex = kmalloc( \ - tp_locvar->nr_ulong * sizeof(unsigned long), \ - GFP_ATOMIC | GFP_NOWAIT); \ + tp_locvar->fds_ex = lttng_tp_mempool_alloc( \ + tp_locvar->nr_ulong * sizeof(unsigned long)); \ if (!tp_locvar->fds_ex) \ goto error; \ \ @@ -221,9 +220,9 @@ end: ; /* Label at end of compound statement. */ \ ) #define LTTNG_SYSCALL_SELECT_code_post \ - kfree(tp_locvar->fds_in); \ - kfree(tp_locvar->fds_out); \ - kfree(tp_locvar->fds_ex); + lttng_tp_mempool_free(tp_locvar->fds_in); \ + lttng_tp_mempool_free(tp_locvar->fds_out); \ + lttng_tp_mempool_free(tp_locvar->fds_ex); #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM) #define OVERRIDE_32_select @@ -260,7 +259,7 @@ SC_LTTNG_TRACEPOINT_EVENT_CODE(select, LTTNG_SYSCALL_SELECT_code_post ) ) -#endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) */ +#endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM) */ #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) #define OVERRIDE_32_pselect6 @@ -413,8 +412,7 @@ static struct lttng_type lttng_pollfd_elem = { { \ int err; \ \ - tp_locvar->fds = kmalloc(tp_locvar->alloc_fds, \ - GFP_ATOMIC | GFP_NOWAIT); \ + tp_locvar->fds = lttng_tp_mempool_alloc(tp_locvar->alloc_fds); \ if (!tp_locvar->fds) \ goto error; \ err = lib_ring_buffer_copy_from_user_check_nofault( \ @@ -494,7 +492,7 @@ end: \ ) #define LTTNG_SYSCALL_POLL_code_post \ - kfree(tp_locvar->fds); + lttng_tp_mempool_free(tp_locvar->fds); #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM) #define OVERRIDE_32_poll @@ -521,7 +519,7 @@ SC_LTTNG_TRACEPOINT_EVENT_CODE(poll, LTTNG_SYSCALL_POLL_code_post ) ) -#endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) */ +#endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM) */ #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) #define OVERRIDE_32_ppoll @@ -761,9 +759,8 @@ static struct lttng_type lttng_epoll_wait_elem = { tp_locvar->fds_length = ret; \ } \ \ - tp_locvar->events = kmalloc( \ - maxalloc * sizeof(struct epoll_event), \ - GFP_ATOMIC | GFP_NOWAIT); \ + tp_locvar->events = lttng_tp_mempool_alloc( \ + maxalloc * sizeof(struct epoll_event)); \ if (!tp_locvar->events) { \ tp_locvar->fds_length = 0; \ goto skip_code; \ @@ -805,7 +802,7 @@ static struct lttng_type lttng_epoll_wait_elem = { #define LTTNG_SYSCALL_EPOLL_WAIT_code_post \ sc_out( \ - kfree(tp_locvar->events); \ + lttng_tp_mempool_free(tp_locvar->events); \ ) @@ -837,7 +834,7 @@ SC_LTTNG_TRACEPOINT_EVENT_CODE(epoll_wait, LTTNG_SYSCALL_EPOLL_WAIT_code_post ) ) -#endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) */ +#endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM) */ #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) #define OVERRIDE_32_epoll_pwait @@ -871,4 +868,102 @@ SC_LTTNG_TRACEPOINT_EVENT_CODE(epoll_pwait, ) #endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) */ +#if (defined(CONFIG_X86_64) && !defined(LTTNG_SC_COMPAT)) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) +#define OVERRIDE_32_socketpair +#define OVERRIDE_64_socketpair +SC_LTTNG_TRACEPOINT_EVENT(socketpair, + TP_PROTO(sc_exit(long ret,) int family, int type, int protocol, int *usockvec), + TP_ARGS(sc_exit(ret,) family, type, protocol, usockvec), + TP_FIELDS( + sc_exit(ctf_integer(long, ret, ret)) + sc_in(ctf_integer(int, family, family)) + sc_in(ctf_integer(int, type, type)) + sc_in(ctf_integer(int, protocol, protocol)) + sc_out(ctf_user_array(int, socket, usockvec, 2)) + ) +) +#endif /* (defined(CONFIG_X86_64) && !defined(LTTNG_SC_COMPAT)) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) */ + +/* + * Enumeration of the open flags, as described in the 'open' + * system call man page. + */ +SC_LTTNG_TRACEPOINT_ENUM(lttng_file_status_flags, + TP_ENUM_VALUES( + ctf_enum_value("O_RDONLY", O_RDONLY) + ctf_enum_value("O_WRONLY", O_WRONLY) + ctf_enum_value("O_RDWR", O_RDWR) + ctf_enum_value("O_CREAT", O_CREAT) + ctf_enum_value("O_EXCL", O_EXCL) + ctf_enum_value("O_NOCTTY", O_NOCTTY) + ctf_enum_value("O_TRUNC", O_TRUNC) + ctf_enum_value("O_APPEND", O_APPEND) + ctf_enum_value("O_NONBLOCK", O_NONBLOCK) + ctf_enum_value("O_DSYNC", O_DSYNC) + ctf_enum_value("FASYNC", FASYNC) + ctf_enum_value("O_DIRECT", O_DIRECT) + ctf_enum_value("O_LARGEFILE", O_LARGEFILE) + ctf_enum_value("O_DIRECTORY", O_DIRECTORY) + ctf_enum_value("O_NOFOLLOW", O_NOFOLLOW) + ctf_enum_value("O_NOATIME", O_NOATIME) + ctf_enum_value("O_CLOEXEC", O_CLOEXEC) + ctf_enum_value("O_SYNC", __O_SYNC) + ctf_enum_value("O_PATH", O_PATH) +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,11,0)) + ctf_enum_value("O_TMPFILE", __O_TMPFILE) +#endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,11,0)) */ + ) +) + +/* + * Enumeration of the open flags, as described in the 'open' + * system call man page. + */ +SC_LTTNG_TRACEPOINT_ENUM(lttng_file_mode, + TP_ENUM_VALUES( + ctf_enum_value("S_IRWXU", S_IRWXU) + ctf_enum_value("S_IRUSR", S_IRUSR) + ctf_enum_value("S_IWUSR", S_IWUSR) + ctf_enum_value("S_IXUSR", S_IXUSR) + ctf_enum_value("S_IRWXG", S_IRWXG) + ctf_enum_value("S_IRGRP", S_IRGRP) + ctf_enum_value("S_IWGRP", S_IWGRP) + ctf_enum_value("S_IXGRP", S_IXGRP) + ctf_enum_value("S_IRWXO", S_IRWXO) + ctf_enum_value("S_IROTH", S_IROTH) + ctf_enum_value("S_IWOTH", S_IWOTH) + ctf_enum_value("S_IXOTH", S_IXOTH) + ctf_enum_value("S_ISUID", S_ISUID) + ctf_enum_value("S_ISGID", S_ISGID) + ctf_enum_value("S_ISVTX", S_ISVTX) + ) +) + +#define OVERRIDE_32_openat +#define OVERRIDE_64_openat +SC_LTTNG_TRACEPOINT_EVENT(openat, + TP_PROTO(sc_exit(long ret,) int dfd, const char * filename, int flags, umode_t mode), + TP_ARGS(sc_exit(ret,) dfd, filename, flags, mode), + TP_FIELDS( + sc_exit(ctf_integer(long, ret, ret)) + sc_in(ctf_integer(int, dfd, dfd)) + sc_in(ctf_user_string(filename, filename)) + sc_in(ctf_enum(lttng_file_status_flags, int, flags, flags)) + sc_in(ctf_enum(lttng_file_mode, umode_t, mode, mode)) + ) +) + +#define OVERRIDE_32_open +#define OVERRIDE_64_open +SC_LTTNG_TRACEPOINT_EVENT(open, + TP_PROTO(sc_exit(long ret,) const char * filename, int flags, umode_t mode), + TP_ARGS(sc_exit(ret,) filename, flags, mode), + TP_FIELDS( + sc_exit(ctf_integer(long, ret, ret)) + sc_in(ctf_user_string(filename, filename)) + sc_in(ctf_enum(lttng_file_status_flags, int, flags, flags)) + sc_in(ctf_enum(lttng_file_mode, umode_t, mode, mode)) + ) +) + #endif /* CREATE_SYSCALL_TABLE */