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authorLinus Torvalds <torvalds@linux-foundation.org>2020-06-19 11:39:57 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-06-19 11:39:57 -0700
commit98d7e741a0a37fff24f99e4b6c5a1bd1e50cd47a (patch)
tree8826b0255f852c85503bd9c51318e74f1939cf0d
parent5e857ce6eae7ca21b2055cca4885545e29228fe2 (diff)
parent6a1515c962b17e2596ae7b9f074fc5685d6b435b (diff)
downloadlinux-stericsson-98d7e741a0a37fff24f99e4b6c5a1bd1e50cd47a.tar.gz
Merge tag 'perf-tools-fixes-2020-06-02' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
Pull perf tooling fixes from Arnaldo Carvalho de Melo: - Update various UAPI headers, some automatically adding support for a new MSR and the faccess2 syscall. - Fix corner case NULL deref in the histograms code. - Fix corner case NULL deref in 'perf stat' aggregation code. - Fix array pointer deref and old style declaration in the parsing of events. - Fix segfault when processing ZSTD compressed perf.data files in 'perf script' due to lack of initialization of the ZSTD library. - Handle __attribute__((user)) in libtraceevent fixing the parsing of syscall tracepoints with user buffers. - Make libtraevent aware of __builtin_expect() appearing in tracepoint fields. - Make the BPF prologue generation use bpf_probe_read_{user,kernel}(). - Fix the '@user' attribute parsing in kprobes variables in 'perf probe'. - Fix error message when asking for -fsanitize=address without required libraries. * tag 'perf-tools-fixes-2020-06-02' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (22 commits) perf build: Fix error message when asking for -fsanitize=address without required libraries tools lib traceevent: Add handler for __builtin_expect() tools lib traceevent: Handle __attribute__((user)) in field names tools lib traceevent: Add append() function helper for appending strings tools headers UAPI: Sync linux/fs.h with the kernel sources tools include UAPI: Sync linux/vhost.h with the kernel sources tools arch x86: Sync the msr-index.h copy with the kernel sources perf script: Initialize zstd_data perf pmu: Remove unused declaration perf parse-events: Fix an old style declaration perf parse-events: Fix an incompatible pointer perf bpf: Fix bpf prologue generation perf probe: Fix user attribute access in kprobes perf stat: Fix NULL pointer dereference perf report: Fix NULL pointer dereference in hists__fprintf_nr_sample_events() tools headers UAPI: Sync kvm.h headers with the kernel sources tools headers UAPI: Sync drm/i915_drm.h with the kernel sources tools headers UAPI: Sync linux/fscrypt.h with the kernel sources perf beauty: Add support to STATX_MNT_ID in the 'statx' syscall 'mask' argument tools headers uapi: Sync linux/stat.h with the kernel sources ...
-rw-r--r--tools/arch/x86/include/asm/cpufeatures.h2
-rw-r--r--tools/arch/x86/include/asm/msr-index.h4
-rw-r--r--tools/arch/x86/include/uapi/asm/kvm.h21
-rw-r--r--tools/arch/x86/include/uapi/asm/unistd.h9
-rw-r--r--tools/arch/x86/include/uapi/asm/vmx.h3
-rw-r--r--tools/include/uapi/asm-generic/unistd.h4
-rw-r--r--tools/include/uapi/drm/i915_drm.h24
-rw-r--r--tools/include/uapi/linux/fcntl.h10
-rw-r--r--tools/include/uapi/linux/fs.h1
-rw-r--r--tools/include/uapi/linux/fscrypt.h3
-rw-r--r--tools/include/uapi/linux/kvm.h14
-rw-r--r--tools/include/uapi/linux/stat.h8
-rw-r--r--tools/include/uapi/linux/vhost.h4
-rw-r--r--tools/lib/traceevent/event-parse.c168
-rw-r--r--tools/perf/Makefile.config12
-rw-r--r--tools/perf/arch/x86/entry/syscalls/syscall_64.tbl1
-rw-r--r--tools/perf/builtin-report.c3
-rw-r--r--tools/perf/builtin-script.c3
-rw-r--r--tools/perf/trace/beauty/statx.c1
-rw-r--r--tools/perf/util/bpf-prologue.c14
-rw-r--r--tools/perf/util/parse-events.y4
-rw-r--r--tools/perf/util/pmu.h1
-rw-r--r--tools/perf/util/probe-event.c7
-rw-r--r--tools/perf/util/probe-file.c2
-rw-r--r--tools/perf/util/stat-display.c4
25 files changed, 250 insertions, 77 deletions
diff --git a/tools/arch/x86/include/asm/cpufeatures.h b/tools/arch/x86/include/asm/cpufeatures.h
index db189945e9b0..02dabc9e77b0 100644
--- a/tools/arch/x86/include/asm/cpufeatures.h
+++ b/tools/arch/x86/include/asm/cpufeatures.h
@@ -362,6 +362,7 @@
#define X86_FEATURE_AVX512_4FMAPS (18*32+ 3) /* AVX-512 Multiply Accumulation Single precision */
#define X86_FEATURE_FSRM (18*32+ 4) /* Fast Short Rep Mov */
#define X86_FEATURE_AVX512_VP2INTERSECT (18*32+ 8) /* AVX-512 Intersect for D/Q */
+#define X86_FEATURE_SRBDS_CTRL (18*32+ 9) /* "" SRBDS mitigation MSR available */
#define X86_FEATURE_MD_CLEAR (18*32+10) /* VERW clears CPU buffers */
#define X86_FEATURE_TSX_FORCE_ABORT (18*32+13) /* "" TSX_FORCE_ABORT */
#define X86_FEATURE_PCONFIG (18*32+18) /* Intel PCONFIG */
@@ -407,5 +408,6 @@
#define X86_BUG_SWAPGS X86_BUG(21) /* CPU is affected by speculation through SWAPGS */
#define X86_BUG_TAA X86_BUG(22) /* CPU is affected by TSX Async Abort(TAA) */
#define X86_BUG_ITLB_MULTIHIT X86_BUG(23) /* CPU may incur MCE during certain page attribute changes */
+#define X86_BUG_SRBDS X86_BUG(24) /* CPU may leak RNG bits if not mitigated */
#endif /* _ASM_X86_CPUFEATURES_H */
diff --git a/tools/arch/x86/include/asm/msr-index.h b/tools/arch/x86/include/asm/msr-index.h
index ef452b817f44..e8370e64a155 100644
--- a/tools/arch/x86/include/asm/msr-index.h
+++ b/tools/arch/x86/include/asm/msr-index.h
@@ -128,6 +128,10 @@
#define TSX_CTRL_RTM_DISABLE BIT(0) /* Disable RTM feature */
#define TSX_CTRL_CPUID_CLEAR BIT(1) /* Disable TSX enumeration */
+/* SRBDS support */
+#define MSR_IA32_MCU_OPT_CTRL 0x00000123
+#define RNGDS_MITG_DIS BIT(0)
+
#define MSR_IA32_SYSENTER_CS 0x00000174
#define MSR_IA32_SYSENTER_ESP 0x00000175
#define MSR_IA32_SYSENTER_EIP 0x00000176
diff --git a/tools/arch/x86/include/uapi/asm/kvm.h b/tools/arch/x86/include/uapi/asm/kvm.h
index 43e24903812c..17c5a038f42d 100644
--- a/tools/arch/x86/include/uapi/asm/kvm.h
+++ b/tools/arch/x86/include/uapi/asm/kvm.h
@@ -385,33 +385,48 @@ struct kvm_sync_regs {
#define KVM_X86_QUIRK_MISC_ENABLE_NO_MWAIT (1 << 4)
#define KVM_STATE_NESTED_FORMAT_VMX 0
-#define KVM_STATE_NESTED_FORMAT_SVM 1 /* unused */
+#define KVM_STATE_NESTED_FORMAT_SVM 1
#define KVM_STATE_NESTED_GUEST_MODE 0x00000001
#define KVM_STATE_NESTED_RUN_PENDING 0x00000002
#define KVM_STATE_NESTED_EVMCS 0x00000004
#define KVM_STATE_NESTED_MTF_PENDING 0x00000008
+#define KVM_STATE_NESTED_GIF_SET 0x00000100
#define KVM_STATE_NESTED_SMM_GUEST_MODE 0x00000001
#define KVM_STATE_NESTED_SMM_VMXON 0x00000002
#define KVM_STATE_NESTED_VMX_VMCS_SIZE 0x1000
+#define KVM_STATE_NESTED_SVM_VMCB_SIZE 0x1000
+
+#define KVM_STATE_VMX_PREEMPTION_TIMER_DEADLINE 0x00000001
+
struct kvm_vmx_nested_state_data {
__u8 vmcs12[KVM_STATE_NESTED_VMX_VMCS_SIZE];
__u8 shadow_vmcs12[KVM_STATE_NESTED_VMX_VMCS_SIZE];
- __u64 preemption_timer_deadline;
};
struct kvm_vmx_nested_state_hdr {
+ __u32 flags;
__u64 vmxon_pa;
__u64 vmcs12_pa;
+ __u64 preemption_timer_deadline;
struct {
__u16 flags;
} smm;
};
+struct kvm_svm_nested_state_data {
+ /* Save area only used if KVM_STATE_NESTED_RUN_PENDING. */
+ __u8 vmcb12[KVM_STATE_NESTED_SVM_VMCB_SIZE];
+};
+
+struct kvm_svm_nested_state_hdr {
+ __u64 vmcb_pa;
+};
+
/* for KVM_CAP_NESTED_STATE */
struct kvm_nested_state {
__u16 flags;
@@ -420,6 +435,7 @@ struct kvm_nested_state {
union {
struct kvm_vmx_nested_state_hdr vmx;
+ struct kvm_svm_nested_state_hdr svm;
/* Pad the header to 128 bytes. */
__u8 pad[120];
@@ -432,6 +448,7 @@ struct kvm_nested_state {
*/
union {
struct kvm_vmx_nested_state_data vmx[0];
+ struct kvm_svm_nested_state_data svm[0];
} data;
};
diff --git a/tools/arch/x86/include/uapi/asm/unistd.h b/tools/arch/x86/include/uapi/asm/unistd.h
index 30d7d04d72d6..be5e2e747f50 100644
--- a/tools/arch/x86/include/uapi/asm/unistd.h
+++ b/tools/arch/x86/include/uapi/asm/unistd.h
@@ -2,7 +2,14 @@
#ifndef _UAPI_ASM_X86_UNISTD_H
#define _UAPI_ASM_X86_UNISTD_H
-/* x32 syscall flag bit */
+/*
+ * x32 syscall flag bit. Some user programs expect syscall NR macros
+ * and __X32_SYSCALL_BIT to have type int, even though syscall numbers
+ * are, for practical purposes, unsigned long.
+ *
+ * Fortunately, expressions like (nr & ~__X32_SYSCALL_BIT) do the right
+ * thing regardless.
+ */
#define __X32_SYSCALL_BIT 0x40000000
#ifndef __KERNEL__
diff --git a/tools/arch/x86/include/uapi/asm/vmx.h b/tools/arch/x86/include/uapi/asm/vmx.h
index e95b72ec19bc..b8ff9e8ac0d5 100644
--- a/tools/arch/x86/include/uapi/asm/vmx.h
+++ b/tools/arch/x86/include/uapi/asm/vmx.h
@@ -150,6 +150,9 @@
{ EXIT_REASON_UMWAIT, "UMWAIT" }, \
{ EXIT_REASON_TPAUSE, "TPAUSE" }
+#define VMX_EXIT_REASON_FLAGS \
+ { VMX_EXIT_REASONS_FAILED_VMENTRY, "FAILED_VMENTRY" }
+
#define VMX_ABORT_SAVE_GUEST_MSR_FAIL 1
#define VMX_ABORT_LOAD_HOST_PDPTE_FAIL 2
#define VMX_ABORT_LOAD_HOST_MSR_FAIL 4
diff --git a/tools/include/uapi/asm-generic/unistd.h b/tools/include/uapi/asm-generic/unistd.h
index 3a3201e4618e..f4a01305d9a6 100644
--- a/tools/include/uapi/asm-generic/unistd.h
+++ b/tools/include/uapi/asm-generic/unistd.h
@@ -855,9 +855,11 @@ __SYSCALL(__NR_clone3, sys_clone3)
__SYSCALL(__NR_openat2, sys_openat2)
#define __NR_pidfd_getfd 438
__SYSCALL(__NR_pidfd_getfd, sys_pidfd_getfd)
+#define __NR_faccessat2 439
+__SYSCALL(__NR_faccessat2, sys_faccessat2)
#undef __NR_syscalls
-#define __NR_syscalls 439
+#define __NR_syscalls 440
/*
* 32 bit systems traditionally used different
diff --git a/tools/include/uapi/drm/i915_drm.h b/tools/include/uapi/drm/i915_drm.h
index 2813e579b480..14b67cd6b54b 100644
--- a/tools/include/uapi/drm/i915_drm.h
+++ b/tools/include/uapi/drm/i915_drm.h
@@ -1969,6 +1969,30 @@ enum drm_i915_perf_property_id {
*/
DRM_I915_PERF_PROP_HOLD_PREEMPTION,
+ /**
+ * Specifying this pins all contexts to the specified SSEU power
+ * configuration for the duration of the recording.
+ *
+ * This parameter's value is a pointer to a struct
+ * drm_i915_gem_context_param_sseu.
+ *
+ * This property is available in perf revision 4.
+ */
+ DRM_I915_PERF_PROP_GLOBAL_SSEU,
+
+ /**
+ * This optional parameter specifies the timer interval in nanoseconds
+ * at which the i915 driver will check the OA buffer for available data.
+ * Minimum allowed value is 100 microseconds. A default value is used by
+ * the driver if this parameter is not specified. Note that larger timer
+ * values will reduce cpu consumption during OA perf captures. However,
+ * excessively large values would potentially result in OA buffer
+ * overwrites as captures reach end of the OA buffer.
+ *
+ * This property is available in perf revision 5.
+ */
+ DRM_I915_PERF_PROP_POLL_OA_PERIOD,
+
DRM_I915_PERF_PROP_MAX /* non-ABI */
};
diff --git a/tools/include/uapi/linux/fcntl.h b/tools/include/uapi/linux/fcntl.h
index ca88b7bce553..2f86b2ad6d7e 100644
--- a/tools/include/uapi/linux/fcntl.h
+++ b/tools/include/uapi/linux/fcntl.h
@@ -84,10 +84,20 @@
#define DN_ATTRIB 0x00000020 /* File changed attibutes */
#define DN_MULTISHOT 0x80000000 /* Don't remove notifier */
+/*
+ * The constants AT_REMOVEDIR and AT_EACCESS have the same value. AT_EACCESS is
+ * meaningful only to faccessat, while AT_REMOVEDIR is meaningful only to
+ * unlinkat. The two functions do completely different things and therefore,
+ * the flags can be allowed to overlap. For example, passing AT_REMOVEDIR to
+ * faccessat would be undefined behavior and thus treating it equivalent to
+ * AT_EACCESS is valid undefined behavior.
+ */
#define AT_FDCWD -100 /* Special value used to indicate
openat should use the current
working directory. */
#define AT_SYMLINK_NOFOLLOW 0x100 /* Do not follow symbolic links. */
+#define AT_EACCESS 0x200 /* Test access permitted for
+ effective IDs, not real IDs. */
#define AT_REMOVEDIR 0x200 /* Remove directory instead of
unlinking file. */
#define AT_SYMLINK_FOLLOW 0x400 /* Follow symbolic links. */
diff --git a/tools/include/uapi/linux/fs.h b/tools/include/uapi/linux/fs.h
index 379a612f8f1d..f44eb0a04afd 100644
--- a/tools/include/uapi/linux/fs.h
+++ b/tools/include/uapi/linux/fs.h
@@ -262,6 +262,7 @@ struct fsxattr {
#define FS_EA_INODE_FL 0x00200000 /* Inode used for large EA */
#define FS_EOFBLOCKS_FL 0x00400000 /* Reserved for ext4 */
#define FS_NOCOW_FL 0x00800000 /* Do not cow file */
+#define FS_DAX_FL 0x02000000 /* Inode is DAX */
#define FS_INLINE_DATA_FL 0x10000000 /* Reserved for ext4 */
#define FS_PROJINHERIT_FL 0x20000000 /* Create with parents projid */
#define FS_CASEFOLD_FL 0x40000000 /* Folder is case insensitive */
diff --git a/tools/include/uapi/linux/fscrypt.h b/tools/include/uapi/linux/fscrypt.h
index a10e3cdc2839..7875709ccfeb 100644
--- a/tools/include/uapi/linux/fscrypt.h
+++ b/tools/include/uapi/linux/fscrypt.h
@@ -19,7 +19,8 @@
#define FSCRYPT_POLICY_FLAGS_PAD_MASK 0x03
#define FSCRYPT_POLICY_FLAG_DIRECT_KEY 0x04
#define FSCRYPT_POLICY_FLAG_IV_INO_LBLK_64 0x08
-#define FSCRYPT_POLICY_FLAGS_VALID 0x0F
+#define FSCRYPT_POLICY_FLAG_IV_INO_LBLK_32 0x10
+#define FSCRYPT_POLICY_FLAGS_VALID 0x1F
/* Encryption algorithms */
#define FSCRYPT_MODE_AES_256_XTS 1
diff --git a/tools/include/uapi/linux/kvm.h b/tools/include/uapi/linux/kvm.h
index fdd632c833b4..4fdf30316582 100644
--- a/tools/include/uapi/linux/kvm.h
+++ b/tools/include/uapi/linux/kvm.h
@@ -188,10 +188,13 @@ struct kvm_s390_cmma_log {
struct kvm_hyperv_exit {
#define KVM_EXIT_HYPERV_SYNIC 1
#define KVM_EXIT_HYPERV_HCALL 2
+#define KVM_EXIT_HYPERV_SYNDBG 3
__u32 type;
+ __u32 pad1;
union {
struct {
__u32 msr;
+ __u32 pad2;
__u64 control;
__u64 evt_page;
__u64 msg_page;
@@ -201,6 +204,15 @@ struct kvm_hyperv_exit {
__u64 result;
__u64 params[2];
} hcall;
+ struct {
+ __u32 msr;
+ __u32 pad2;
+ __u64 control;
+ __u64 status;
+ __u64 send_page;
+ __u64 recv_page;
+ __u64 pending_page;
+ } syndbg;
} u;
};
@@ -1017,6 +1029,8 @@ struct kvm_ppc_resize_hpt {
#define KVM_CAP_S390_VCPU_RESETS 179
#define KVM_CAP_S390_PROTECTED 180
#define KVM_CAP_PPC_SECURE_GUEST 181
+#define KVM_CAP_HALT_POLL 182
+#define KVM_CAP_ASYNC_PF_INT 183
#ifdef KVM_CAP_IRQ_ROUTING
diff --git a/tools/include/uapi/linux/stat.h b/tools/include/uapi/linux/stat.h
index d1192783139a..82cc58fe9368 100644
--- a/tools/include/uapi/linux/stat.h
+++ b/tools/include/uapi/linux/stat.h
@@ -123,7 +123,10 @@ struct statx {
__u32 stx_dev_major; /* ID of device containing file [uncond] */
__u32 stx_dev_minor;
/* 0x90 */
- __u64 __spare2[14]; /* Spare space for future expansion */
+ __u64 stx_mnt_id;
+ __u64 __spare2;
+ /* 0xa0 */
+ __u64 __spare3[12]; /* Spare space for future expansion */
/* 0x100 */
};
@@ -148,6 +151,7 @@ struct statx {
#define STATX_BLOCKS 0x00000400U /* Want/got stx_blocks */
#define STATX_BASIC_STATS 0x000007ffU /* The stuff in the normal stat struct */
#define STATX_BTIME 0x00000800U /* Want/got stx_btime */
+#define STATX_MNT_ID 0x00001000U /* Got stx_mnt_id */
#define STATX__RESERVED 0x80000000U /* Reserved for future struct statx expansion */
@@ -177,7 +181,9 @@ struct statx {
#define STATX_ATTR_NODUMP 0x00000040 /* [I] File is not to be dumped */
#define STATX_ATTR_ENCRYPTED 0x00000800 /* [I] File requires key to decrypt in fs */
#define STATX_ATTR_AUTOMOUNT 0x00001000 /* Dir: Automount trigger */
+#define STATX_ATTR_MOUNT_ROOT 0x00002000 /* Root of a mount */
#define STATX_ATTR_VERITY 0x00100000 /* [I] Verity protected file */
+#define STATX_ATTR_DAX 0x00002000 /* [I] File is DAX */
#endif /* _UAPI_LINUX_STAT_H */
diff --git a/tools/include/uapi/linux/vhost.h b/tools/include/uapi/linux/vhost.h
index 9fe72e4b1373..0c2349612e77 100644
--- a/tools/include/uapi/linux/vhost.h
+++ b/tools/include/uapi/linux/vhost.h
@@ -15,6 +15,8 @@
#include <linux/types.h>
#include <linux/ioctl.h>
+#define VHOST_FILE_UNBIND -1
+
/* ioctls */
#define VHOST_VIRTIO 0xAF
@@ -140,4 +142,6 @@
/* Get the max ring size. */
#define VHOST_VDPA_GET_VRING_NUM _IOR(VHOST_VIRTIO, 0x76, __u16)
+/* Set event fd for config interrupt*/
+#define VHOST_VDPA_SET_CONFIG_CALL _IOW(VHOST_VIRTIO, 0x77, int)
#endif
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index e1bd2a93c6db..5b36c589a029 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -1425,13 +1425,28 @@ static unsigned int type_size(const char *name)
return 0;
}
+static int append(char **buf, const char *delim, const char *str)
+{
+ char *new_buf;
+
+ new_buf = realloc(*buf, strlen(*buf) + strlen(delim) + strlen(str) + 1);
+ if (!new_buf)
+ return -1;
+ strcat(new_buf, delim);
+ strcat(new_buf, str);
+ *buf = new_buf;
+ return 0;
+}
+
static int event_read_fields(struct tep_event *event, struct tep_format_field **fields)
{
struct tep_format_field *field = NULL;
enum tep_event_type type;
char *token;
char *last_token;
+ char *delim = " ";
int count = 0;
+ int ret;
do {
unsigned int size_dynamic = 0;
@@ -1490,24 +1505,51 @@ static int event_read_fields(struct tep_event *event, struct tep_format_field **
field->flags |= TEP_FIELD_IS_POINTER;
if (field->type) {
- char *new_type;
- new_type = realloc(field->type,
- strlen(field->type) +
- strlen(last_token) + 2);
- if (!new_type) {
- free(last_token);
- goto fail;
- }
- field->type = new_type;
- strcat(field->type, " ");
- strcat(field->type, last_token);
+ ret = append(&field->type, delim, last_token);
free(last_token);
+ if (ret < 0)
+ goto fail;
} else
field->type = last_token;
last_token = token;
+ delim = " ";
continue;
}
+ /* Handle __attribute__((user)) */
+ if ((type == TEP_EVENT_DELIM) &&
+ strcmp("__attribute__", last_token) == 0 &&
+ token[0] == '(') {
+ int depth = 1;
+ int ret;
+
+ ret = append(&field->type, " ", last_token);
+ ret |= append(&field->type, "", "(");
+ if (ret < 0)
+ goto fail;
+
+ delim = " ";
+ while ((type = read_token(&token)) != TEP_EVENT_NONE) {
+ if (type == TEP_EVENT_DELIM) {
+ if (token[0] == '(')
+ depth++;
+ else if (token[0] == ')')
+ depth--;
+ if (!depth)
+ break;
+ ret = append(&field->type, "", token);
+ delim = "";
+ } else {
+ ret = append(&field->type, delim, token);
+ delim = " ";
+ }
+ if (ret < 0)
+ goto fail;
+ free(last_token);
+ last_token = token;
+ }
+ continue;
+ }
break;
}
@@ -1523,8 +1565,6 @@ static int event_read_fields(struct tep_event *event, struct tep_format_field **
if (strcmp(token, "[") == 0) {
enum tep_event_type last_type = type;
char *brackets = token;
- char *new_brackets;
- int len;
field->flags |= TEP_FIELD_IS_ARRAY;
@@ -1536,29 +1576,27 @@ static int event_read_fields(struct tep_event *event, struct tep_format_field **
field->arraylen = 0;
while (strcmp(token, "]") != 0) {
+ const char *delim;
+
if (last_type == TEP_EVENT_ITEM &&
type == TEP_EVENT_ITEM)
- len = 2;
+ delim = " ";
else
- len = 1;
+ delim = "";
+
last_type = type;
- new_brackets = realloc(brackets,
- strlen(brackets) +
- strlen(token) + len);
- if (!new_brackets) {
+ ret = append(&brackets, delim, token);
+ if (ret < 0) {
free(brackets);
goto fail;
}
- brackets = new_brackets;
- if (len == 2)
- strcat(brackets, " ");
- strcat(brackets, token);
/* We only care about the last token */
field->arraylen = strtoul(token, NULL, 0);
free_token(token);
type = read_token(&token);
if (type == TEP_EVENT_NONE) {
+ free(brackets);
do_warning_event(event, "failed to find token");
goto fail;
}
@@ -1566,13 +1604,11 @@ static int event_read_fields(struct tep_event *event, struct tep_format_field **
free_token(token);
- new_brackets = realloc(brackets, strlen(brackets) + 2);
- if (!new_brackets) {
+ ret = append(&brackets, "", "]");
+ if (ret < 0) {
free(brackets);
goto fail;
}
- brackets = new_brackets;
- strcat(brackets, "]");
/* add brackets to type */
@@ -1582,34 +1618,23 @@ static int event_read_fields(struct tep_event *event, struct tep_format_field **
* the format: type [] item;
*/
if (type == TEP_EVENT_ITEM) {
- char *new_type;
- new_type = realloc(field->type,
- strlen(field->type) +
- strlen(field->name) +
- strlen(brackets) + 2);
- if (!new_type) {
+ ret = append(&field->type, " ", field->name);
+ if (ret < 0) {
free(brackets);
goto fail;
}
- field->type = new_type;
- strcat(field->type, " ");
- strcat(field->type, field->name);
+ ret = append(&field->type, "", brackets);
+
size_dynamic = type_size(field->name);
free_token(field->name);
- strcat(field->type, brackets);
field->name = field->alias = token;
type = read_token(&token);
} else {
- char *new_type;
- new_type = realloc(field->type,
- strlen(field->type) +
- strlen(brackets) + 1);
- if (!new_type) {
+ ret = append(&field->type, "", brackets);
+ if (ret < 0) {
free(brackets);
goto fail;
}
- field->type = new_type;
- strcat(field->type, brackets);
}
free(brackets);
}
@@ -2046,19 +2071,16 @@ process_op(struct tep_event *event, struct tep_print_arg *arg, char **tok)
/* could just be a type pointer */
if ((strcmp(arg->op.op, "*") == 0) &&
type == TEP_EVENT_DELIM && (strcmp(token, ")") == 0)) {
- char *new_atom;
+ int ret;
if (left->type != TEP_PRINT_ATOM) {
do_warning_event(event, "bad pointer type");
goto out_free;
}
- new_atom = realloc(left->atom.atom,
- strlen(left->atom.atom) + 3);
- if (!new_atom)
+ ret = append(&left->atom.atom, " ", "*");
+ if (ret < 0)
goto out_warn_free;
- left->atom.atom = new_atom;
- strcat(left->atom.atom, " *");
free(arg->op.op);
*arg = *left;
free(left);
@@ -3063,6 +3085,37 @@ err:
}
static enum tep_event_type
+process_builtin_expect(struct tep_event *event, struct tep_print_arg *arg, char **tok)
+{
+ enum tep_event_type type;
+ char *token = NULL;
+
+ /* Handle __builtin_expect( cond, #) */
+ type = process_arg(event, arg, &token);
+
+ if (type != TEP_EVENT_DELIM || token[0] != ',')
+ goto out_free;
+
+ free_token(token);
+
+ /* We don't care what the second parameter is of the __builtin_expect() */
+ if (read_expect_type(TEP_EVENT_ITEM, &token) < 0)
+ goto out_free;
+
+ if (read_expected(TEP_EVENT_DELIM, ")") < 0)
+ goto out_free;
+
+ free_token(token);
+ type = read_token_item(tok);
+ return type;
+
+out_free:
+ free_token(token);
+ *tok = NULL;
+ return TEP_EVENT_ERROR;
+}
+
+static enum tep_event_type
process_function(struct tep_event *event, struct tep_print_arg *arg,
char *token, char **tok)
{
@@ -3106,6 +3159,10 @@ process_function(struct tep_event *event, struct tep_print_arg *arg,
free_token(token);
return process_dynamic_array_len(event, arg, tok);
}
+ if (strcmp(token, "__builtin_expect") == 0) {
+ free_token(token);
+ return process_builtin_expect(event, arg, tok);
+ }
func = find_func_handler(event->tep, token);
if (func) {
@@ -3151,18 +3208,15 @@ process_arg_token(struct tep_event *event, struct tep_print_arg *arg,
}
/* atoms can be more than one token long */
while (type == TEP_EVENT_ITEM) {
- char *new_atom;
- new_atom = realloc(atom,
- strlen(atom) + strlen(token) + 2);
- if (!new_atom) {
+ int ret;
+
+ ret = append(&atom, " ", token);
+ if (ret < 0) {
free(atom);
*tok = NULL;
free_token(token);
return TEP_EVENT_ERROR;
}
- atom = new_atom;
- strcat(atom, " ");
- strcat(atom, token);
free_token(token);
type = read_token_item(&token);
}
diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index 877ca6be0ed0..513633809c81 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -396,6 +396,18 @@ else
NO_LIBBPF := 1
NO_JVMTI := 1
else
+ ifneq ($(filter s% -fsanitize=address%,$(EXTRA_CFLAGS),),)
+ ifneq ($(shell ldconfig -p | grep libasan >/dev/null 2>&1; echo $$?), 0)
+ msg := $(error No libasan found, please install libasan);
+ endif
+ endif
+
+ ifneq ($(filter s% -fsanitize=undefined%,$(EXTRA_CFLAGS),),)
+ ifneq ($(shell ldconfig -p | grep libubsan >/dev/null 2>&1; echo $$?), 0)
+ msg := $(error No libubsan found, please install libubsan);
+ endif
+ endif
+
ifneq ($(filter s% -static%,$(LDFLAGS),),)
msg := $(error No static glibc found, please install glibc-static);
else
diff --git a/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl b/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl
index 37b844f839bc..78847b32e137 100644
--- a/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl
+++ b/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl
@@ -359,6 +359,7 @@
435 common clone3 sys_clone3
437 common openat2 sys_openat2
438 common pidfd_getfd sys_pidfd_getfd
+439 common faccessat2 sys_faccessat2
#
# x32-specific system call numbers start at 512 to avoid cache impact
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index b63b3fb2de70..5f1d2a878fad 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -478,8 +478,7 @@ static size_t hists__fprintf_nr_sample_events(struct hists *hists, struct report
if (rep->time_str)
ret += fprintf(fp, " (time slices: %s)", rep->time_str);
- if (symbol_conf.show_ref_callgraph &&
- strstr(evname, "call-graph=no")) {
+ if (symbol_conf.show_ref_callgraph && evname && strstr(evname, "call-graph=no")) {
ret += fprintf(fp, ", show reference callgraph");
}
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 5da243676f12..181d65e5a450 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -3837,6 +3837,9 @@ int cmd_script(int argc, const char **argv)
if (err)
goto out_delete;
+ if (zstd_init(&(session->zstd_data), 0) < 0)
+ pr_warning("Decompression initialization failed. Reported data may be incomplete.\n");
+
err = __cmd_script(&script);
flush_scripting();
diff --git a/tools/perf/trace/beauty/statx.c b/tools/perf/trace/beauty/statx.c
index 811cc0eeb2d5..110f0c609d84 100644
--- a/tools/perf/trace/beauty/statx.c
+++ b/tools/perf/trace/beauty/statx.c
@@ -65,6 +65,7 @@ size_t syscall_arg__scnprintf_statx_mask(char *bf, size_t size, struct syscall_a
P_FLAG(SIZE);
P_FLAG(BLOCKS);
P_FLAG(BTIME);
+ P_FLAG(MNT_ID);
#undef P_FLAG
diff --git a/tools/perf/util/bpf-prologue.c b/tools/perf/util/bpf-prologue.c
index b020a8678eb9..9887ae09242d 100644
--- a/tools/perf/util/bpf-prologue.c
+++ b/tools/perf/util/bpf-prologue.c
@@ -142,7 +142,8 @@ static int
gen_read_mem(struct bpf_insn_pos *pos,
int src_base_addr_reg,
int dst_addr_reg,
- long offset)
+ long offset,
+ int probeid)
{
/* mov arg3, src_base_addr_reg */
if (src_base_addr_reg != BPF_REG_ARG3)
@@ -159,7 +160,7 @@ gen_read_mem(struct bpf_insn_pos *pos,
ins(BPF_MOV64_REG(BPF_REG_ARG1, dst_addr_reg), pos);
/* Call probe_read */
- ins(BPF_EMIT_CALL(BPF_FUNC_probe_read), pos);
+ ins(BPF_EMIT_CALL(probeid), pos);
/*
* Error processing: if read fail, goto error code,
* will be relocated. Target should be the start of
@@ -241,7 +242,7 @@ static int
gen_prologue_slowpath(struct bpf_insn_pos *pos,
struct probe_trace_arg *args, int nargs)
{
- int err, i;
+ int err, i, probeid;
for (i = 0; i < nargs; i++) {
struct probe_trace_arg *arg = &args[i];
@@ -276,11 +277,16 @@ gen_prologue_slowpath(struct bpf_insn_pos *pos,
stack_offset), pos);
ref = arg->ref;
+ probeid = BPF_FUNC_probe_read_kernel;
while (ref) {
pr_debug("prologue: arg %d: offset %ld\n",
i, ref->offset);
+
+ if (ref->user_access)
+ probeid = BPF_FUNC_probe_read_user;
+
err = gen_read_mem(pos, BPF_REG_3, BPF_REG_7,
- ref->offset);
+ ref->offset, probeid);
if (err) {
pr_err("prologue: failed to generate probe_read function call\n");
goto errout;
diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y
index c4ca932d092d..acef87d9af58 100644
--- a/tools/perf/util/parse-events.y
+++ b/tools/perf/util/parse-events.y
@@ -26,7 +26,7 @@ do { \
YYABORT; \
} while (0)
-static struct list_head* alloc_list()
+static struct list_head* alloc_list(void)
{
struct list_head *list;
@@ -349,7 +349,7 @@ PE_PMU_EVENT_PRE '-' PE_PMU_EVENT_SUF sep_dc
struct list_head *list;
char pmu_name[128];
- snprintf(&pmu_name, 128, "%s-%s", $1, $3);
+ snprintf(pmu_name, sizeof(pmu_name), "%s-%s", $1, $3);
free($1);
free($3);
if (parse_events_multi_pmu_add(_parse_state, pmu_name, &list) < 0)
diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h
index 85e0c7f2515c..f971d9aa4570 100644
--- a/tools/perf/util/pmu.h
+++ b/tools/perf/util/pmu.h
@@ -86,7 +86,6 @@ int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms,
struct perf_pmu_info *info);
struct list_head *perf_pmu__alias(struct perf_pmu *pmu,
struct list_head *head_terms);
-int perf_pmu_wrap(void);
void perf_pmu_error(struct list_head *list, char *name, char const *msg);
int perf_pmu__new_format(struct list_head *list, char *name,
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index a08f373d3305..df713a5d1e26 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -1575,7 +1575,7 @@ static int parse_perf_probe_arg(char *str, struct perf_probe_arg *arg)
}
tmp = strchr(str, '@');
- if (tmp && tmp != str && strcmp(tmp + 1, "user")) { /* user attr */
+ if (tmp && tmp != str && !strcmp(tmp + 1, "user")) { /* user attr */
if (!user_access_is_supported()) {
semantic_error("ftrace does not support user access\n");
return -EINVAL;
@@ -1995,7 +1995,10 @@ static int __synthesize_probe_trace_arg_ref(struct probe_trace_arg_ref *ref,
if (depth < 0)
return depth;
}
- err = strbuf_addf(buf, "%+ld(", ref->offset);
+ if (ref->user_access)
+ err = strbuf_addf(buf, "%s%ld(", "+u", ref->offset);
+ else
+ err = strbuf_addf(buf, "%+ld(", ref->offset);
return (err < 0) ? err : depth;
}
diff --git a/tools/perf/util/probe-file.c b/tools/perf/util/probe-file.c
index 8c852948513e..064b63a6a3f3 100644
--- a/tools/perf/util/probe-file.c
+++ b/tools/perf/util/probe-file.c
@@ -1044,7 +1044,7 @@ static struct {
DEFINE_TYPE(FTRACE_README_PROBE_TYPE_X, "*type: * x8/16/32/64,*"),
DEFINE_TYPE(FTRACE_README_KRETPROBE_OFFSET, "*place (kretprobe): *"),
DEFINE_TYPE(FTRACE_README_UPROBE_REF_CTR, "*ref_ctr_offset*"),
- DEFINE_TYPE(FTRACE_README_USER_ACCESS, "*[u]<offset>*"),
+ DEFINE_TYPE(FTRACE_README_USER_ACCESS, "*u]<offset>*"),
DEFINE_TYPE(FTRACE_README_MULTIPROBE_EVENT, "*Create/append/*"),
DEFINE_TYPE(FTRACE_README_IMMEDIATE_VALUE, "*\\imm-value,*"),
};
diff --git a/tools/perf/util/stat-display.c b/tools/perf/util/stat-display.c
index 3c6976f7574c..57d0706e1330 100644
--- a/tools/perf/util/stat-display.c
+++ b/tools/perf/util/stat-display.c
@@ -668,7 +668,7 @@ static void print_aggr(struct perf_stat_config *config,
int s;
bool first;
- if (!(config->aggr_map || config->aggr_get_id))
+ if (!config->aggr_map || !config->aggr_get_id)
return;
aggr_update_shadow(config, evlist);
@@ -1169,7 +1169,7 @@ static void print_percore(struct perf_stat_config *config,
int s;
bool first = true;
- if (!(config->aggr_map || config->aggr_get_id))
+ if (!config->aggr_map || !config->aggr_get_id)
return;
if (config->percore_show_thread)