X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=lttng-syscalls.c;h=080355f4e00408922e609df45948c044dc1116a1;hb=fea65d0c097a42cf163bf7035985a6da330b9a1f;hp=e691e8bfc48f42af574ea336f0be0b121b5e52a1;hpb=a292e6f18f16828e220479c5226e1f2066a20b28;p=lttng-modules.git diff --git a/lttng-syscalls.c b/lttng-syscalls.c index e691e8bf..080355f4 100644 --- a/lttng-syscalls.c +++ b/lttng-syscalls.c @@ -34,11 +34,11 @@ #include #include -#include "lib/bitfield.h" -#include "wrapper/tracepoint.h" -#include "wrapper/file.h" -#include "wrapper/rcu.h" -#include "lttng-events.h" +#include +#include +#include +#include +#include #ifndef CONFIG_COMPAT # ifndef is_compat_task @@ -46,6 +46,11 @@ # endif #endif +/* in_compat_syscall appears in kernel 4.6. */ +#ifndef in_compat_syscall + #define in_compat_syscall() is_compat_task() +#endif + enum sc_type { SC_TYPE_ENTRY, SC_TYPE_EXIT, @@ -92,14 +97,14 @@ struct user_msghdr; #define LTTNG_PACKAGE_BUILD #define CREATE_TRACE_POINTS #define TP_MODULE_NOINIT -#define TRACE_INCLUDE_PATH ../instrumentation/syscalls/headers +#define TRACE_INCLUDE_PATH instrumentation/syscalls/headers #define PARAMS(args...) args /* Handle unknown syscalls */ #undef TRACE_SYSTEM #define TRACE_SYSTEM syscalls_unknown -#include "instrumentation/syscalls/headers/syscalls_unknown.h" +#include #undef TRACE_SYSTEM #define SC_ENTER @@ -127,17 +132,21 @@ struct user_msghdr; LTTNG_TRACEPOINT_EVENT_CLASS_NOARGS(syscall_entry_##_name, PARAMS(_fields)) #define SC_LTTNG_TRACEPOINT_EVENT_INSTANCE_NOARGS(_template, _name) \ LTTNG_TRACEPOINT_EVENT_INSTANCE_NOARGS(syscall_entry_##_template, syscall_entry_##_name) +/* Enumerations only defined at first inclusion. */ +#define SC_LTTNG_TRACEPOINT_ENUM(_name, _values) \ + LTTNG_TRACEPOINT_ENUM(_name, PARAMS(_values)) #undef TRACE_SYSTEM #define TRACE_SYSTEM syscall_entry_integers #define TRACE_INCLUDE_FILE syscalls_integers -#include "instrumentation/syscalls/headers/syscalls_integers.h" +#include #undef TRACE_INCLUDE_FILE #undef TRACE_SYSTEM #define TRACE_SYSTEM syscall_entry_pointers #define TRACE_INCLUDE_FILE syscalls_pointers -#include "instrumentation/syscalls/headers/syscalls_pointers.h" +#include #undef TRACE_INCLUDE_FILE #undef TRACE_SYSTEM +#undef SC_LTTNG_TRACEPOINT_ENUM #undef SC_LTTNG_TRACEPOINT_EVENT_CODE #undef SC_LTTNG_TRACEPOINT_EVENT #undef SC_LTTNG_TRACEPOINT_EVENT_CLASS_NOARGS @@ -159,16 +168,19 @@ struct user_msghdr; #define SC_LTTNG_TRACEPOINT_EVENT_INSTANCE_NOARGS(_template, _name) \ LTTNG_TRACEPOINT_EVENT_INSTANCE_NOARGS(compat_syscall_entry_##_template, \ compat_syscall_entry_##_name) +/* Enumerations only defined at inital inclusion (not here). */ +#define SC_LTTNG_TRACEPOINT_ENUM(_name, _values) #define TRACE_SYSTEM compat_syscall_entry_integers #define TRACE_INCLUDE_FILE compat_syscalls_integers -#include "instrumentation/syscalls/headers/compat_syscalls_integers.h" +#include #undef TRACE_INCLUDE_FILE #undef TRACE_SYSTEM #define TRACE_SYSTEM compat_syscall_entry_pointers #define TRACE_INCLUDE_FILE compat_syscalls_pointers -#include "instrumentation/syscalls/headers/compat_syscalls_pointers.h" +#include #undef TRACE_INCLUDE_FILE #undef TRACE_SYSTEM +#undef SC_LTTNG_TRACEPOINT_ENUM #undef SC_LTTNG_TRACEPOINT_EVENT_CODE #undef SC_LTTNG_TRACEPOINT_EVENT #undef SC_LTTNG_TRACEPOINT_EVENT_CLASS_NOARGS @@ -203,16 +215,19 @@ struct user_msghdr; #define SC_LTTNG_TRACEPOINT_EVENT_INSTANCE_NOARGS(_template, _name) \ LTTNG_TRACEPOINT_EVENT_INSTANCE_NOARGS(syscall_exit_##_template, \ syscall_exit_##_name) +/* Enumerations only defined at inital inclusion (not here). */ +#define SC_LTTNG_TRACEPOINT_ENUM(_name, _values) #define TRACE_SYSTEM syscall_exit_integers #define TRACE_INCLUDE_FILE syscalls_integers -#include "instrumentation/syscalls/headers/syscalls_integers.h" +#include #undef TRACE_INCLUDE_FILE #undef TRACE_SYSTEM #define TRACE_SYSTEM syscall_exit_pointers #define TRACE_INCLUDE_FILE syscalls_pointers -#include "instrumentation/syscalls/headers/syscalls_pointers.h" +#include #undef TRACE_INCLUDE_FILE #undef TRACE_SYSTEM +#undef SC_LTTNG_TRACEPOINT_ENUM #undef SC_LTTNG_TRACEPOINT_EVENT_CODE #undef SC_LTTNG_TRACEPOINT_EVENT #undef SC_LTTNG_TRACEPOINT_EVENT_CLASS_NOARGS @@ -235,16 +250,19 @@ struct user_msghdr; #define SC_LTTNG_TRACEPOINT_EVENT_INSTANCE_NOARGS(_template, _name) \ LTTNG_TRACEPOINT_EVENT_INSTANCE_NOARGS(compat_syscall_exit_##_template, \ compat_syscall_exit_##_name) +/* Enumerations only defined at inital inclusion (not here). */ +#define SC_LTTNG_TRACEPOINT_ENUM(_name, _values) #define TRACE_SYSTEM compat_syscall_exit_integers #define TRACE_INCLUDE_FILE compat_syscalls_integers -#include "instrumentation/syscalls/headers/compat_syscalls_integers.h" +#include #undef TRACE_INCLUDE_FILE #undef TRACE_SYSTEM #define TRACE_SYSTEM compat_syscall_exit_pointers #define TRACE_INCLUDE_FILE compat_syscalls_pointers -#include "instrumentation/syscalls/headers/compat_syscalls_pointers.h" +#include #undef TRACE_INCLUDE_FILE #undef TRACE_SYSTEM +#undef SC_LTTNG_TRACEPOINT_ENUM #undef SC_LTTNG_TRACEPOINT_EVENT_CODE #undef SC_LTTNG_TRACEPOINT_EVENT #undef SC_LTTNG_TRACEPOINT_EVENT_CLASS_NOARGS @@ -284,8 +302,8 @@ struct trace_syscall_entry { /* Syscall enter tracing table */ static const struct trace_syscall_entry sc_table[] = { -#include "instrumentation/syscalls/headers/syscalls_integers.h" -#include "instrumentation/syscalls/headers/syscalls_pointers.h" +#include +#include }; #undef TRACE_SYSCALL_TABLE @@ -299,8 +317,8 @@ static const struct trace_syscall_entry sc_table[] = { /* Compat syscall enter table */ const struct trace_syscall_entry compat_sc_table[] = { -#include "instrumentation/syscalls/headers/compat_syscalls_integers.h" -#include "instrumentation/syscalls/headers/compat_syscalls_pointers.h" +#include +#include }; #undef SC_ENTER @@ -321,8 +339,8 @@ const struct trace_syscall_entry compat_sc_table[] = { /* Syscall exit table */ static const struct trace_syscall_entry sc_exit_table[] = { -#include "instrumentation/syscalls/headers/syscalls_integers.h" -#include "instrumentation/syscalls/headers/syscalls_pointers.h" +#include +#include }; #undef TRACE_SYSCALL_TABLE @@ -336,8 +354,8 @@ static const struct trace_syscall_entry sc_exit_table[] = { /* Compat syscall exit table */ const struct trace_syscall_entry compat_sc_exit_table[] = { -#include "instrumentation/syscalls/headers/compat_syscalls_integers.h" -#include "instrumentation/syscalls/headers/compat_syscalls_pointers.h" +#include +#include }; #undef SC_EXIT @@ -355,7 +373,7 @@ static void syscall_entry_unknown(struct lttng_event *event, unsigned long args[UNKNOWN_SYSCALL_NRARGS]; syscall_get_arguments(current, regs, 0, UNKNOWN_SYSCALL_NRARGS, args); - if (unlikely(is_compat_task())) + if (unlikely(in_compat_syscall())) __event_probe__compat_syscall_entry_unknown(event, id, args); else __event_probe__syscall_entry_unknown(event, id, args); @@ -368,7 +386,7 @@ void syscall_entry_probe(void *__data, struct pt_regs *regs, long id) const struct trace_syscall_entry *table, *entry; size_t table_len; - if (unlikely(is_compat_task())) { + if (unlikely(in_compat_syscall())) { struct lttng_syscall_filter *filter; filter = lttng_rcu_dereference(chan->sc_filter); @@ -401,7 +419,7 @@ void syscall_entry_probe(void *__data, struct pt_regs *regs, long id) syscall_entry_unknown(unknown_event, regs, id); return; } - if (unlikely(is_compat_task())) + if (unlikely(in_compat_syscall())) event = chan->compat_sc_table[id]; else event = chan->sc_table[id]; @@ -506,7 +524,7 @@ static void syscall_exit_unknown(struct lttng_event *event, unsigned long args[UNKNOWN_SYSCALL_NRARGS]; syscall_get_arguments(current, regs, 0, UNKNOWN_SYSCALL_NRARGS, args); - if (unlikely(is_compat_task())) + if (unlikely(in_compat_syscall())) __event_probe__compat_syscall_exit_unknown(event, id, ret, args); else @@ -522,7 +540,7 @@ void syscall_exit_probe(void *__data, struct pt_regs *regs, long ret) long id; id = syscall_get_nr(current, regs); - if (unlikely(is_compat_task())) { + if (unlikely(in_compat_syscall())) { struct lttng_syscall_filter *filter; filter = lttng_rcu_dereference(chan->sc_filter); @@ -555,7 +573,7 @@ void syscall_exit_probe(void *__data, struct pt_regs *regs, long ret) syscall_exit_unknown(unknown_event, regs, id, ret); return; } - if (unlikely(is_compat_task())) + if (unlikely(in_compat_syscall())) event = chan->compat_sc_exit_table[id]; else event = chan->sc_exit_table[id];