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authorLinus Torvalds <torvalds@linux-foundation.org>2026-08-30 09:22:00 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2026-08-30 09:22:00 -0700
commit034dd340b08be1f2f0477ad16131d609f9dbd53c (patch)
tree2536f4b2d7893ccd916b5abdf3c454ad6edc03c2 /tools/perf/util/annotate-arch
downloadlinux-stable-034dd340b08be1f2f0477ad16131d609f9dbd53c.tar.gz
linux-stable-034dd340b08be1f2f0477ad16131d609f9dbd53c.zip
Merge tag 'trace-v7.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-tracegrafted
Pull tracing fixes from Steven Rostedt: - Fix error output of boot instance creation failure Currently if a boot instance creation fails, instead of printing out the name of the instance that failed, it prints "(null)". That is because it prints "cur_str" that had already been processed by strsep(). Print the saved name instead. While at it, print the error code of the failure. - Fix use-after-free for same named historgrams Histograms can be named so that they can be used in multiple events. But if the named histogram has a variable attached, the second event that uses the named histogram which duplicates it and needs to free the original after duplication leaves the old variable in place and still visible. If another histogram uses than variable, it will use the stale one which will try to reference the freed duplicate histogram and crash the kernel. Free the duplicate variables along with the duplicated histogram data. - Check return value of kthread_run() in event self test The events self tests uses a kthread for testing but does not check if it succeeded in creating a kthread. If the kthread creation were to fail, the code will still try to call kthread_stop() on the error returned. - Fix race between reading trace_pipe and updating subbuffer size If a user is reading the trace_pipe file at the same time they update the ring buffer sub-buffer size, can cause the trace_pipe read to read stale data. Add trace_access_lock() around updating the ring buffer sub-buffer size. - Fix eventfs_inode on failure path in creation of the events directory In the creation of the "events" directory, if after allocating the eventfs_inode a failure is detected, it calls cleanup_ei() which calls free_ei(). The free_ei() will test if eventfs_inode being freed has no children. It is a bug if it does. But on the failure case of the creation of the "events" directory, the children lists have not yet been initialized and the free will trigger a warning because list_empty() on an uninitialized list returns false. Move the initialization into init_ei() where it makes more sense and makes sure that a created eventfs_inode has its lists initialized upon creation. - Check return value of kthread_run() in ftrace direct sample code The sample code that shows how to use the ftrace direct calls does not test the return of kthread_run() to see if it succeeds. Return a failure if the kthread_run() doesn't succeed. - Clear user events state on fork in case of alloc failure On fork, the child gets a pointer to the parent's user events state. It makes a copy of it then updates the child's pointer to it. But if the allocation fails, the duplication function leaves the child with a pointer to its parent's descriptor. When the child cleans up its data, it will free the parent's descriptor while the parent is still using it. In the duplication function, set the child's user_event_mm to NULL before testing if the allocation succeeded, and when it exits it will not free the parent's descriptor. - Fix retry exhaustion in simple ring buffer reader swap simple_ring_buffer_swap_reader_page() starts with retry set to 8 and post-decrements it only after a failed link replacement. On the final attempt, a successful replacement leaves retry at zero, while a failed replacement leaves it at -1. But the check for success expects the retry value to be non-zero and exits with an error on zero. This is the opposite result. Fix it. - Fail nicely when the remote swap_reader_page() returns an error Currently, if the swap_reader_page() of a remote buffer fails, it triggers a WARN_ON_ONCE() and continues normally. Instead, have it exit with an error and a pr_warn() print instead of a full WARNING. * tag 'trace-v7.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: ring-buffer: Stop remote reader update when page swap fails tracing: Fix retry exhaustion in simple ring buffer reader swap tracing/user_events: Clear copied tracing state before fork duplication samples/ftrace: Fix kthread_stop() on ERR_PTR in ftrace-direct-multi-modify samples/ftrace: Fix kthread_stop() on ERR_PTR in ftrace-direct-modify eventfs: Initialize ei->children and ei->list in init_ei() tracing: Fix use-after-free in trace_pipe read on sub-buffer order change tracing: Fix crash passing ERR_PTR to kthread_stop() tracing: Fix use-after-free with same-name named triggers tracing: Fix logged instance name on creation failure
Diffstat (limited to 'tools/perf/util/annotate-arch')
-rw-r--r--tools/perf/util/annotate-arch/Build11
-rw-r--r--tools/perf/util/annotate-arch/annotate-arc.c18
-rw-r--r--tools/perf/util/annotate-arch/annotate-arm.c68
-rw-r--r--tools/perf/util/annotate-arch/annotate-arm64.c127
-rw-r--r--tools/perf/util/annotate-arch/annotate-csky.c56
-rw-r--r--tools/perf/util/annotate-arch/annotate-loongarch.c157
-rw-r--r--tools/perf/util/annotate-arch/annotate-mips.c53
-rw-r--r--tools/perf/util/annotate-arch/annotate-powerpc.c410
-rw-r--r--tools/perf/util/annotate-arch/annotate-riscv64.c41
-rw-r--r--tools/perf/util/annotate-arch/annotate-s390.c190
-rw-r--r--tools/perf/util/annotate-arch/annotate-sparc.c177
-rw-r--r--tools/perf/util/annotate-arch/annotate-x86.c852
12 files changed, 2160 insertions, 0 deletions
diff --git a/tools/perf/util/annotate-arch/Build b/tools/perf/util/annotate-arch/Build
new file mode 100644
index 000000000..23316743f
--- /dev/null
+++ b/tools/perf/util/annotate-arch/Build
@@ -0,0 +1,11 @@
+perf-util-y += annotate-arc.o
+perf-util-y += annotate-arm.o
+perf-util-y += annotate-arm64.o
+perf-util-y += annotate-csky.o
+perf-util-y += annotate-loongarch.o
+perf-util-y += annotate-mips.o
+perf-util-y += annotate-x86.o
+perf-util-y += annotate-powerpc.o
+perf-util-y += annotate-riscv64.o
+perf-util-y += annotate-s390.o
+perf-util-y += annotate-sparc.o
diff --git a/tools/perf/util/annotate-arch/annotate-arc.c b/tools/perf/util/annotate-arch/annotate-arc.c
new file mode 100644
index 000000000..170103e38
--- /dev/null
+++ b/tools/perf/util/annotate-arch/annotate-arc.c
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/compiler.h>
+#include <linux/zalloc.h>
+#include "../disasm.h"
+
+const struct arch *arch__new_arc(const struct e_machine_and_e_flags *id,
+ const char *cpuid __maybe_unused)
+{
+ struct arch *arch = zalloc(sizeof(*arch));
+
+ if (!arch)
+ return NULL;
+
+ arch->name = "arc";
+ arch->id = *id;
+ arch->objdump.comment_char = ';';
+ return arch;
+}
diff --git a/tools/perf/util/annotate-arch/annotate-arm.c b/tools/perf/util/annotate-arch/annotate-arm.c
new file mode 100644
index 000000000..afb413c80
--- /dev/null
+++ b/tools/perf/util/annotate-arch/annotate-arm.c
@@ -0,0 +1,68 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <stdlib.h>
+#include <linux/compiler.h>
+#include <linux/zalloc.h>
+#include <errno.h>
+#include <regex.h>
+#include "../annotate.h"
+#include "../disasm.h"
+
+struct arch_arm {
+ struct arch arch;
+ regex_t call_insn;
+ regex_t jump_insn;
+};
+
+static const struct ins_ops *arm__associate_instruction_ops(struct arch *arch, const char *name)
+{
+ struct arch_arm *arm = container_of(arch, struct arch_arm, arch);
+ const struct ins_ops *ops;
+ regmatch_t match[2];
+
+ if (!regexec(&arm->call_insn, name, 2, match, 0))
+ ops = &call_ops;
+ else if (!regexec(&arm->jump_insn, name, 2, match, 0))
+ ops = &jump_ops;
+ else
+ return NULL;
+
+ arch__associate_ins_ops(arch, name, ops);
+ return ops;
+}
+
+const struct arch *arch__new_arm(const struct e_machine_and_e_flags *id,
+ const char *cpuid __maybe_unused)
+{
+ int err;
+ struct arch_arm *arm = zalloc(sizeof(*arm));
+ struct arch *arch;
+
+ if (!arm)
+ return NULL;
+
+ arch = &arm->arch;
+ arch->name = "arm";
+ arch->id = *id;
+ arch->objdump.comment_char = ';';
+ arch->objdump.skip_functions_char = '+';
+ arch->associate_instruction_ops = arm__associate_instruction_ops;
+
+#define ARM_CONDS "(cc|cs|eq|ge|gt|hi|le|ls|lt|mi|ne|pl|vc|vs)"
+ err = regcomp(&arm->call_insn, "^blx?" ARM_CONDS "?$", REG_EXTENDED);
+ if (err)
+ goto out_free_arm;
+
+ err = regcomp(&arm->jump_insn, "^bx?" ARM_CONDS "?$", REG_EXTENDED);
+ if (err)
+ goto out_free_call;
+#undef ARM_CONDS
+
+ return arch;
+
+out_free_call:
+ regfree(&arm->call_insn);
+out_free_arm:
+ free(arm);
+ errno = SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_REGEXP;
+ return NULL;
+}
diff --git a/tools/perf/util/annotate-arch/annotate-arm64.c b/tools/perf/util/annotate-arch/annotate-arm64.c
new file mode 100644
index 000000000..33080fdca
--- /dev/null
+++ b/tools/perf/util/annotate-arch/annotate-arm64.c
@@ -0,0 +1,127 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/compiler.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <linux/zalloc.h>
+#include <regex.h>
+#include "../annotate.h"
+#include "../disasm.h"
+
+struct arch_arm64 {
+ struct arch arch;
+ regex_t call_insn;
+ regex_t jump_insn;
+};
+
+static int arm64_mov__parse(const struct arch *arch __maybe_unused,
+ struct ins_operands *ops,
+ struct map_symbol *ms __maybe_unused,
+ struct disasm_line *dl __maybe_unused)
+{
+ char *s = strchr(ops->raw, ','), *target, *endptr;
+
+ if (s == NULL)
+ return -1;
+
+ *s = '\0';
+ ops->source.raw = strdup(ops->raw);
+ *s = ',';
+
+ if (ops->source.raw == NULL)
+ return -1;
+
+ target = ++s;
+ ops->target.raw = strdup(target);
+ if (ops->target.raw == NULL)
+ goto out_free_source;
+
+ ops->target.addr = strtoull(target, &endptr, 16);
+ if (endptr == target)
+ goto out_free_target;
+
+ s = strchr(endptr, '<');
+ if (s == NULL)
+ goto out_free_target;
+ endptr = strchr(s + 1, '>');
+ if (endptr == NULL)
+ goto out_free_target;
+
+ *endptr = '\0';
+ *s = ' ';
+ ops->target.name = strdup(s);
+ *s = '<';
+ *endptr = '>';
+ if (ops->target.name == NULL)
+ goto out_free_target;
+
+ return 0;
+
+out_free_target:
+ zfree(&ops->target.raw);
+out_free_source:
+ zfree(&ops->source.raw);
+ return -1;
+}
+
+static const struct ins_ops arm64_mov_ops = {
+ .parse = arm64_mov__parse,
+ .scnprintf = mov__scnprintf,
+};
+
+static const struct ins_ops *arm64__associate_instruction_ops(struct arch *arch, const char *name)
+{
+ struct arch_arm64 *arm = container_of(arch, struct arch_arm64, arch);
+ const struct ins_ops *ops;
+ regmatch_t match[2];
+
+ if (!regexec(&arm->jump_insn, name, 2, match, 0))
+ ops = &jump_ops;
+ else if (!regexec(&arm->call_insn, name, 2, match, 0))
+ ops = &call_ops;
+ else if (!strcmp(name, "ret"))
+ ops = &ret_ops;
+ else
+ ops = &arm64_mov_ops;
+
+ arch__associate_ins_ops(arch, name, ops);
+ return ops;
+}
+
+const struct arch *arch__new_arm64(const struct e_machine_and_e_flags *id,
+ const char *cpuid __maybe_unused)
+{
+ int err;
+ struct arch_arm64 *arm = zalloc(sizeof(*arm));
+ struct arch *arch;
+
+ if (!arm)
+ return NULL;
+
+ arch = &arm->arch;
+ arch->name = "arm64";
+ arch->id = *id;
+ arch->objdump.comment_char = '/';
+ arch->objdump.skip_functions_char = '+';
+ arch->associate_instruction_ops = arm64__associate_instruction_ops;
+
+ /* bl, blr */
+ err = regcomp(&arm->call_insn, "^blr?$", REG_EXTENDED);
+ if (err)
+ goto out_free_arm;
+
+ /* b, b.cond, br, cbz/cbnz, tbz/tbnz */
+ err = regcomp(&arm->jump_insn, "^[ct]?br?\\.?(cc|cs|eq|ge|gt|hi|hs|le|lo|ls|lt|mi|ne|pl|vc|vs)?n?z?$",
+ REG_EXTENDED);
+ if (err)
+ goto out_free_call;
+
+ return arch;
+
+out_free_call:
+ regfree(&arm->call_insn);
+out_free_arm:
+ free(arm);
+ errno = SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_REGEXP;
+ return NULL;
+}
diff --git a/tools/perf/util/annotate-arch/annotate-csky.c b/tools/perf/util/annotate-arch/annotate-csky.c
new file mode 100644
index 000000000..d2b18e4ea
--- /dev/null
+++ b/tools/perf/util/annotate-arch/annotate-csky.c
@@ -0,0 +1,56 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2019 Hangzhou C-SKY Microsystems co.,ltd.
+#include <string.h>
+#include <linux/compiler.h>
+#include <linux/zalloc.h>
+#include "../disasm.h"
+
+static const struct ins_ops *csky__associate_ins_ops(struct arch *arch,
+ const char *name)
+{
+ const struct ins_ops *ops = NULL;
+
+ /* catch all kind of jumps */
+ if (!strcmp(name, "bt") ||
+ !strcmp(name, "bf") ||
+ !strcmp(name, "bez") ||
+ !strcmp(name, "bnez") ||
+ !strcmp(name, "bnezad") ||
+ !strcmp(name, "bhsz") ||
+ !strcmp(name, "bhz") ||
+ !strcmp(name, "blsz") ||
+ !strcmp(name, "blz") ||
+ !strcmp(name, "br") ||
+ !strcmp(name, "jmpi") ||
+ !strcmp(name, "jmp"))
+ ops = &jump_ops;
+
+ /* catch function call */
+ if (!strcmp(name, "bsr") ||
+ !strcmp(name, "jsri") ||
+ !strcmp(name, "jsr"))
+ ops = &call_ops;
+
+ /* catch function return */
+ if (!strcmp(name, "rts"))
+ ops = &ret_ops;
+
+ if (ops)
+ arch__associate_ins_ops(arch, name, ops);
+ return ops;
+}
+
+const struct arch *arch__new_csky(const struct e_machine_and_e_flags *id,
+ const char *cpuid __maybe_unused)
+{
+ struct arch *arch = zalloc(sizeof(*arch));
+
+ if (!arch)
+ return NULL;
+
+ arch->name = "csky";
+ arch->id = *id;
+ arch->objdump.comment_char = '/';
+ arch->associate_instruction_ops = csky__associate_ins_ops;
+ return arch;
+}
diff --git a/tools/perf/util/annotate-arch/annotate-loongarch.c b/tools/perf/util/annotate-arch/annotate-loongarch.c
new file mode 100644
index 000000000..c2addca77
--- /dev/null
+++ b/tools/perf/util/annotate-arch/annotate-loongarch.c
@@ -0,0 +1,157 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Perf annotate functions.
+ *
+ * Copyright (C) 2020-2023 Loongson Technology Corporation Limited
+ */
+#include <stdlib.h>
+#include <string.h>
+#include <linux/compiler.h>
+#include <linux/zalloc.h>
+#include "../disasm.h"
+#include "../map.h"
+#include "../maps.h"
+#include "../symbol.h"
+#include "../thread.h"
+
+static int loongarch_call__parse(const struct arch *arch, struct ins_operands *ops,
+ struct map_symbol *ms,
+ struct disasm_line *dl __maybe_unused)
+{
+ char *c, *endptr, *tok, *name;
+ struct map *map = ms->map;
+ struct addr_map_symbol target;
+
+ c = strchr(ops->raw, '#');
+ if (c++ == NULL)
+ return -1;
+
+ ops->target.addr = strtoull(c, &endptr, 16);
+
+ name = strchr(endptr, '<');
+ name++;
+
+ if (arch->objdump.skip_functions_char &&
+ strchr(name, arch->objdump.skip_functions_char))
+ return -1;
+
+ tok = strchr(name, '>');
+ if (tok == NULL)
+ return -1;
+
+ *tok = '\0';
+ ops->target.name = strdup(name);
+ *tok = '>';
+
+ if (ops->target.name == NULL)
+ return -1;
+
+ target = (struct addr_map_symbol) {
+ .ms = { .map = map__get(map), },
+ .addr = map__objdump_2mem(map, ops->target.addr),
+ };
+
+ if (maps__find_ams(thread__maps(ms->thread), &target) == 0 &&
+ map__rip_2objdump(target.ms.map, map__map_ip(target.ms.map, target.addr)) == ops->target.addr)
+ ops->target.sym = target.ms.sym;
+
+ addr_map_symbol__exit(&target);
+ return 0;
+}
+
+static const struct ins_ops loongarch_call_ops = {
+ .parse = loongarch_call__parse,
+ .scnprintf = call__scnprintf,
+ .is_call = true,
+};
+
+static int loongarch_jump__parse(const struct arch *arch, struct ins_operands *ops,
+ struct map_symbol *ms,
+ struct disasm_line *dl __maybe_unused)
+
+{
+ struct map *map = ms->map;
+ struct symbol *sym = ms->sym;
+ struct addr_map_symbol target = {
+ .ms = { .map = map__get(map), },
+ };
+ const char *c = strchr(ops->raw, '#');
+ u64 start, end;
+
+ ops->jump.raw_comment = strchr(ops->raw, arch->objdump.comment_char);
+ ops->jump.raw_func_start = strchr(ops->raw, '<');
+
+ if (ops->jump.raw_func_start && c > ops->jump.raw_func_start)
+ c = NULL;
+
+ if (c++ != NULL)
+ ops->target.addr = strtoull(c, NULL, 16);
+ else
+ ops->target.addr = strtoull(ops->raw, NULL, 16);
+
+ target.addr = map__objdump_2mem(map, ops->target.addr);
+ start = map__unmap_ip(map, sym->start);
+ end = map__unmap_ip(map, sym->end);
+
+ ops->target.outside = target.addr < start || target.addr >= end;
+
+ if (maps__find_ams(thread__maps(ms->thread), &target) == 0 &&
+ map__rip_2objdump(target.ms.map, map__map_ip(target.ms.map, target.addr)) == ops->target.addr)
+ ops->target.sym = target.ms.sym;
+
+ if (!ops->target.outside) {
+ ops->target.offset = target.addr - start;
+ ops->target.offset_avail = true;
+ } else {
+ ops->target.offset_avail = false;
+ }
+ addr_map_symbol__exit(&target);
+ return 0;
+}
+
+static const struct ins_ops loongarch_jump_ops = {
+ .free = jump__delete,
+ .parse = loongarch_jump__parse,
+ .scnprintf = jump__scnprintf,
+ .is_jump = true,
+};
+
+static
+const struct ins_ops *loongarch__associate_ins_ops(struct arch *arch, const char *name)
+{
+ const struct ins_ops *ops = NULL;
+
+ if (!strcmp(name, "bl"))
+ ops = &loongarch_call_ops;
+ else if (!strcmp(name, "jirl"))
+ ops = &ret_ops;
+ else if (!strcmp(name, "b") ||
+ !strncmp(name, "beq", 3) ||
+ !strncmp(name, "bne", 3) ||
+ !strncmp(name, "blt", 3) ||
+ !strncmp(name, "bge", 3) ||
+ !strncmp(name, "bltu", 4) ||
+ !strncmp(name, "bgeu", 4))
+ ops = &loongarch_jump_ops;
+ else
+ return NULL;
+
+ arch__associate_ins_ops(arch, name, ops);
+
+ return ops;
+}
+
+const struct arch *arch__new_loongarch(const struct e_machine_and_e_flags *id,
+ const char *cpuid __maybe_unused)
+{
+ struct arch *arch = zalloc(sizeof(*arch));
+
+ if (!arch)
+ return NULL;
+
+ arch->name = "loongarch";
+ arch->id = *id;
+ arch->associate_instruction_ops = loongarch__associate_ins_ops;
+ arch->objdump.comment_char = '#';
+ return arch;
+}
diff --git a/tools/perf/util/annotate-arch/annotate-mips.c b/tools/perf/util/annotate-arch/annotate-mips.c
new file mode 100644
index 000000000..e8d1c6c7e
--- /dev/null
+++ b/tools/perf/util/annotate-arch/annotate-mips.c
@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <string.h>
+#include <linux/compiler.h>
+#include <linux/zalloc.h>
+#include "../disasm.h"
+
+static
+const struct ins_ops *mips__associate_ins_ops(struct arch *arch, const char *name)
+{
+ const struct ins_ops *ops = NULL;
+
+ if (!strncmp(name, "bal", 3) ||
+ !strncmp(name, "bgezal", 6) ||
+ !strncmp(name, "bltzal", 6) ||
+ !strncmp(name, "bgtzal", 6) ||
+ !strncmp(name, "blezal", 6) ||
+ !strncmp(name, "beqzal", 6) ||
+ !strncmp(name, "bnezal", 6) ||
+ !strncmp(name, "bgtzl", 5) ||
+ !strncmp(name, "bltzl", 5) ||
+ !strncmp(name, "bgezl", 5) ||
+ !strncmp(name, "blezl", 5) ||
+ !strncmp(name, "jialc", 5) ||
+ !strncmp(name, "beql", 4) ||
+ !strncmp(name, "bnel", 4) ||
+ !strncmp(name, "jal", 3))
+ ops = &call_ops;
+ else if (!strncmp(name, "jr", 2))
+ ops = &ret_ops;
+ else if (name[0] == 'j' || name[0] == 'b')
+ ops = &jump_ops;
+ else
+ return NULL;
+
+ arch__associate_ins_ops(arch, name, ops);
+
+ return ops;
+}
+
+const struct arch *arch__new_mips(const struct e_machine_and_e_flags *id,
+ const char *cpuid __maybe_unused)
+{
+ struct arch *arch = zalloc(sizeof(*arch));
+
+ if (!arch)
+ return NULL;
+
+ arch->name = "mips";
+ arch->id = *id;
+ arch->objdump.comment_char = '#';
+ arch->associate_instruction_ops = mips__associate_ins_ops;
+ return arch;
+}
diff --git a/tools/perf/util/annotate-arch/annotate-powerpc.c b/tools/perf/util/annotate-arch/annotate-powerpc.c
new file mode 100644
index 000000000..218207b52
--- /dev/null
+++ b/tools/perf/util/annotate-arch/annotate-powerpc.c
@@ -0,0 +1,410 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <string.h>
+#include <linux/compiler.h>
+#include <linux/kernel.h>
+#include "../annotate-data.h"
+#include "../debug.h"
+#include "../disasm.h"
+
+#define PPC_OP(op) (((op) >> 26) & 0x3F)
+#define PPC_21_30(R) (((R) >> 1) & 0x3ff)
+#define PPC_22_30(R) (((R) >> 1) & 0x1ff)
+
+#define MINUS_EXT_XO_FORM 234
+#define SUB_EXT_XO_FORM 232
+#define ADD_ZERO_EXT_XO_FORM 202
+#define SUB_ZERO_EXT_XO_FORM 200
+
+static int arithmetic__scnprintf(const struct ins *ins, char *bf, size_t size,
+ struct ins_operands *ops, int max_ins_name)
+{
+ return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name,
+ ops->raw);
+}
+
+/*
+ * Sets the fields: multi_regs and "mem_ref".
+ * "mem_ref" is set for ops->source which is later used to
+ * fill the objdump->memory_ref-char field. This ops is currently
+ * used by powerpc and since binary instruction code is used to
+ * extract opcode, regs and offset, no other parsing is needed here.
+ *
+ * Dont set multi regs for 4 cases since it has only one operand
+ * for source:
+ * - Add to Minus One Extended XO-form ( Ex: addme, addmeo )
+ * - Subtract From Minus One Extended XO-form ( Ex: subfme )
+ * - Add to Zero Extended XO-form ( Ex: addze, addzeo )
+ * - Subtract From Zero Extended XO-form ( Ex: subfze )
+ */
+static int arithmetic__parse(const struct arch *arch __maybe_unused, struct ins_operands *ops,
+ struct map_symbol *ms __maybe_unused, struct disasm_line *dl)
+{
+ int opcode = PPC_OP(dl->raw.raw_insn);
+
+ ops->source.mem_ref = false;
+ if (opcode == 31) {
+ if ((opcode != MINUS_EXT_XO_FORM) && (opcode != SUB_EXT_XO_FORM) &&
+ (opcode != ADD_ZERO_EXT_XO_FORM) && (opcode != SUB_ZERO_EXT_XO_FORM))
+ ops->source.multi_regs = true;
+ }
+
+ ops->target.mem_ref = false;
+ ops->target.multi_regs = false;
+
+ return 0;
+}
+
+static const struct ins_ops arithmetic_ops = {
+ .parse = arithmetic__parse,
+ .scnprintf = arithmetic__scnprintf,
+};
+
+static int load_store__scnprintf(const struct ins *ins, char *bf, size_t size,
+ struct ins_operands *ops, int max_ins_name)
+{
+ return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name,
+ ops->raw);
+}
+
+/*
+ * Sets the fields: multi_regs and "mem_ref".
+ * "mem_ref" is set for ops->source which is later used to
+ * fill the objdump->memory_ref-char field. This ops is currently
+ * used by powerpc and since binary instruction code is used to
+ * extract opcode, regs and offset, no other parsing is needed here
+ */
+static int load_store__parse(const struct arch *arch __maybe_unused, struct ins_operands *ops,
+ struct map_symbol *ms __maybe_unused, struct disasm_line *dl __maybe_unused)
+{
+ ops->source.mem_ref = true;
+ ops->source.multi_regs = false;
+ /* opcode 31 is of X form */
+ if (PPC_OP(dl->raw.raw_insn) == 31)
+ ops->source.multi_regs = true;
+
+ ops->target.mem_ref = false;
+ ops->target.multi_regs = false;
+
+ return 0;
+}
+
+static const struct ins_ops load_store_ops = {
+ .parse = load_store__parse,
+ .scnprintf = load_store__scnprintf,
+};
+
+static const struct ins_ops *powerpc__associate_instruction_ops(struct arch *arch, const char *name)
+{
+ int i;
+ const struct ins_ops *ops;
+
+ /*
+ * - Interested only if instruction starts with 'b'.
+ * - Few start with 'b', but aren't branch instructions.
+ */
+ if (name[0] != 'b' ||
+ !strncmp(name, "bcd", 3) ||
+ !strncmp(name, "brinc", 5) ||
+ !strncmp(name, "bper", 4))
+ return NULL;
+
+ ops = &jump_ops;
+
+ i = strlen(name) - 1;
+ if (i < 0)
+ return NULL;
+
+ /* ignore optional hints at the end of the instructions */
+ if (name[i] == '+' || name[i] == '-')
+ i--;
+
+ if (name[i] == 'l' || (name[i] == 'a' && name[i-1] == 'l')) {
+ /*
+ * if the instruction ends up with 'l' or 'la', then
+ * those are considered 'calls' since they update LR.
+ * ... except for 'bnl' which is branch if not less than
+ * and the absolute form of the same.
+ */
+ if (strcmp(name, "bnl") && strcmp(name, "bnl+") &&
+ strcmp(name, "bnl-") && strcmp(name, "bnla") &&
+ strcmp(name, "bnla+") && strcmp(name, "bnla-"))
+ ops = &call_ops;
+ }
+ if (name[i] == 'r' && name[i-1] == 'l')
+ /*
+ * instructions ending with 'lr' are considered to be
+ * return instructions
+ */
+ ops = &ret_ops;
+
+ arch__associate_ins_ops(arch, name, ops);
+ return ops;
+}
+
+struct insn_offset {
+ const char *name;
+ int value;
+};
+
+/*
+ * There are memory instructions with opcode 31 which are
+ * of X Form, Example:
+ * ldx RT,RA,RB
+ * ______________________________________
+ * | 31 | RT | RA | RB | 21 |/|
+ * --------------------------------------
+ * 0 6 11 16 21 30 31
+ *
+ * But all instructions with opcode 31 are not memory.
+ * Example: add RT,RA,RB
+ *
+ * Use bits 21 to 30 to check memory insns with 31 as opcode.
+ * In ins_array below, for ldx instruction:
+ * name => OP_31_XOP_LDX
+ * value => 21
+ */
+
+static struct insn_offset ins_array[] = {
+ { .name = "OP_31_XOP_LXSIWZX", .value = 12, },
+ { .name = "OP_31_XOP_LWARX", .value = 20, },
+ { .name = "OP_31_XOP_LDX", .value = 21, },
+ { .name = "OP_31_XOP_LWZX", .value = 23, },
+ { .name = "OP_31_XOP_LDUX", .value = 53, },
+ { .name = "OP_31_XOP_LWZUX", .value = 55, },
+ { .name = "OP_31_XOP_LXSIWAX", .value = 76, },
+ { .name = "OP_31_XOP_LDARX", .value = 84, },
+ { .name = "OP_31_XOP_LBZX", .value = 87, },
+ { .name = "OP_31_XOP_LVX", .value = 103, },
+ { .name = "OP_31_XOP_LBZUX", .value = 119, },
+ { .name = "OP_31_XOP_STXSIWX", .value = 140, },
+ { .name = "OP_31_XOP_STDX", .value = 149, },
+ { .name = "OP_31_XOP_STWX", .value = 151, },
+ { .name = "OP_31_XOP_STDUX", .value = 181, },
+ { .name = "OP_31_XOP_STWUX", .value = 183, },
+ { .name = "OP_31_XOP_STBX", .value = 215, },
+ { .name = "OP_31_XOP_STVX", .value = 231, },
+ { .name = "OP_31_XOP_STBUX", .value = 247, },
+ { .name = "OP_31_XOP_LHZX", .value = 279, },
+ { .name = "OP_31_XOP_LHZUX", .value = 311, },
+ { .name = "OP_31_XOP_LXVDSX", .value = 332, },
+ { .name = "OP_31_XOP_LWAX", .value = 341, },
+ { .name = "OP_31_XOP_LHAX", .value = 343, },
+ { .name = "OP_31_XOP_LWAUX", .value = 373, },
+ { .name = "OP_31_XOP_LHAUX", .value = 375, },
+ { .name = "OP_31_XOP_STHX", .value = 407, },
+ { .name = "OP_31_XOP_STHUX", .value = 439, },
+ { .name = "OP_31_XOP_LXSSPX", .value = 524, },
+ { .name = "OP_31_XOP_LDBRX", .value = 532, },
+ { .name = "OP_31_XOP_LSWX", .value = 533, },
+ { .name = "OP_31_XOP_LWBRX", .value = 534, },
+ { .name = "OP_31_XOP_LFSUX", .value = 567, },
+ { .name = "OP_31_XOP_LXSDX", .value = 588, },
+ { .name = "OP_31_XOP_LSWI", .value = 597, },
+ { .name = "OP_31_XOP_LFDX", .value = 599, },
+ { .name = "OP_31_XOP_LFDUX", .value = 631, },
+ { .name = "OP_31_XOP_STXSSPX", .value = 652, },
+ { .name = "OP_31_XOP_STDBRX", .value = 660, },
+ { .name = "OP_31_XOP_STXWX", .value = 661, },
+ { .name = "OP_31_XOP_STWBRX", .value = 662, },
+ { .name = "OP_31_XOP_STFSX", .value = 663, },
+ { .name = "OP_31_XOP_STFSUX", .value = 695, },
+ { .name = "OP_31_XOP_STXSDX", .value = 716, },
+ { .name = "OP_31_XOP_STSWI", .value = 725, },
+ { .name = "OP_31_XOP_STFDX", .value = 727, },
+ { .name = "OP_31_XOP_STFDUX", .value = 759, },
+ { .name = "OP_31_XOP_LXVW4X", .value = 780, },
+ { .name = "OP_31_XOP_LHBRX", .value = 790, },
+ { .name = "OP_31_XOP_LXVD2X", .value = 844, },
+ { .name = "OP_31_XOP_LFIWAX", .value = 855, },
+ { .name = "OP_31_XOP_LFIWZX", .value = 887, },
+ { .name = "OP_31_XOP_STXVW4X", .value = 908, },
+ { .name = "OP_31_XOP_STHBRX", .value = 918, },
+ { .name = "OP_31_XOP_STXVD2X", .value = 972, },
+ { .name = "OP_31_XOP_STFIWX", .value = 983, },
+};
+
+/*
+ * Arithmetic instructions which are having opcode as 31.
+ * These instructions are tracked to save the register state
+ * changes. Example:
+ *
+ * lwz r10,264(r3)
+ * add r31, r3, r3
+ * lwz r9, 0(r31)
+ *
+ * Here instruction tracking needs to identify the "add"
+ * instruction and save data type of r3 to r31. If a sample
+ * is hit at next "lwz r9, 0(r31)", by this instruction tracking,
+ * data type of r31 can be resolved.
+ */
+static struct insn_offset arithmetic_ins_op_31[] = {
+ { .name = "SUB_CARRY_XO_FORM", .value = 8, },
+ { .name = "MUL_HDW_XO_FORM1", .value = 9, },
+ { .name = "ADD_CARRY_XO_FORM", .value = 10, },
+ { .name = "MUL_HW_XO_FORM1", .value = 11, },
+ { .name = "SUB_XO_FORM", .value = 40, },
+ { .name = "MUL_HDW_XO_FORM", .value = 73, },
+ { .name = "MUL_HW_XO_FORM", .value = 75, },
+ { .name = "SUB_EXT_XO_FORM", .value = 136, },
+ { .name = "ADD_EXT_XO_FORM", .value = 138, },
+ { .name = "SUB_ZERO_EXT_XO_FORM", .value = 200, },
+ { .name = "ADD_ZERO_EXT_XO_FORM", .value = 202, },
+ { .name = "SUB_EXT_XO_FORM2", .value = 232, },
+ { .name = "MUL_DW_XO_FORM", .value = 233, },
+ { .name = "ADD_EXT_XO_FORM2", .value = 234, },
+ { .name = "MUL_W_XO_FORM", .value = 235, },
+ { .name = "ADD_XO_FORM", .value = 266, },
+ { .name = "DIV_DW_XO_FORM1", .value = 457, },
+ { .name = "DIV_W_XO_FORM1", .value = 459, },
+ { .name = "DIV_DW_XO_FORM", .value = 489, },
+ { .name = "DIV_W_XO_FORM", .value = 491, },
+};
+
+static struct insn_offset arithmetic_two_ops[] = {
+ { .name = "mulli", .value = 7, },
+ { .name = "subfic", .value = 8, },
+ { .name = "addic", .value = 12, },
+ { .name = "addic.", .value = 13, },
+ { .name = "addi", .value = 14, },
+ { .name = "addis", .value = 15, },
+};
+
+static int cmp_offset(const void *a, const void *b)
+{
+ const struct insn_offset *val1 = a;
+ const struct insn_offset *val2 = b;
+
+ return (val1->value - val2->value);
+}
+
+const struct ins_ops *check_ppc_insn(struct disasm_line *dl)
+{
+ int raw_insn = dl->raw.raw_insn;
+ int opcode = PPC_OP(raw_insn);
+ int mem_insn_31 = PPC_21_30(raw_insn);
+ struct insn_offset *ret;
+ struct insn_offset mem_insns_31_opcode = {
+ "OP_31_INSN",
+ mem_insn_31
+ };
+ char name_insn[32];
+
+ /*
+ * Instructions with opcode 32 to 63 are memory
+ * instructions in powerpc
+ */
+ if ((opcode & 0x20)) {
+ /*
+ * Set name in case of raw instruction to
+ * opcode to be used in insn-stat
+ */
+ if (!strlen(dl->ins.name)) {
+ sprintf(name_insn, "%d", opcode);
+ dl->ins.name = strdup(name_insn);
+ }
+ return &load_store_ops;
+ } else if (opcode == 31) {
+ /* Check for memory instructions with opcode 31 */
+ ret = bsearch(&mem_insns_31_opcode, ins_array, ARRAY_SIZE(ins_array), sizeof(ins_array[0]), cmp_offset);
+ if (ret) {
+ if (!strlen(dl->ins.name))
+ dl->ins.name = strdup(ret->name);
+ return &load_store_ops;
+ } else {
+ mem_insns_31_opcode.value = PPC_22_30(raw_insn);
+ ret = bsearch(&mem_insns_31_opcode, arithmetic_ins_op_31, ARRAY_SIZE(arithmetic_ins_op_31),
+ sizeof(arithmetic_ins_op_31[0]), cmp_offset);
+ if (ret != NULL)
+ return &arithmetic_ops;
+ /* Bits 21 to 30 has value 444 for "mr" insn ie, OR X form */
+ if (PPC_21_30(raw_insn) == 444)
+ return &arithmetic_ops;
+ }
+ } else {
+ mem_insns_31_opcode.value = opcode;
+ ret = bsearch(&mem_insns_31_opcode, arithmetic_two_ops, ARRAY_SIZE(arithmetic_two_ops),
+ sizeof(arithmetic_two_ops[0]), cmp_offset);
+ if (ret != NULL)
+ return &arithmetic_ops;
+ }
+
+ return NULL;
+}
+
+/*
+ * Instruction tracking function to track register state moves.
+ * Example sequence:
+ * ld r10,264(r3)
+ * mr r31,r3
+ * <<after some sequence>
+ * ld r9,312(r31)
+ *
+ * Previous instruction sequence shows that register state of r3
+ * is moved to r31. update_insn_state_powerpc tracks these state
+ * changes
+ */
+#ifdef HAVE_LIBDW_SUPPORT
+static void update_insn_state_powerpc(struct type_state *state,
+ struct data_loc_info *dloc, Dwarf_Die * cu_die __maybe_unused,
+ struct disasm_line *dl)
+{
+ struct annotated_insn_loc loc;
+ struct annotated_op_loc *src = &loc.ops[INSN_OP_SOURCE];
+ struct annotated_op_loc *dst = &loc.ops[INSN_OP_TARGET];
+ struct type_state_reg *tsr;
+ u32 insn_offset = dl->al.offset;
+
+ if (annotate_get_insn_location(dloc->arch, dl, &loc) < 0)
+ return;
+
+ /*
+ * Value 444 for bits 21:30 is for "mr"
+ * instruction. "mr" is extended OR. So set the
+ * source and destination reg correctly
+ */
+ if (PPC_21_30(dl->raw.raw_insn) == 444) {
+ int src_reg = src->reg1;
+
+ src->reg1 = dst->reg1;
+ dst->reg1 = src_reg;
+ }
+
+ if (!has_reg_type(state, dst->reg1))
+ return;
+
+ tsr = &state->regs[dst->reg1];
+
+ if (!has_reg_type(state, src->reg1) ||
+ !state->regs[src->reg1].ok) {
+ tsr->ok = false;
+ return;
+ }
+
+ tsr->type = state->regs[src->reg1].type;
+ tsr->kind = state->regs[src->reg1].kind;
+ tsr->ok = true;
+
+ pr_debug_dtp("mov [%x] reg%d -> reg%d",
+ insn_offset, src->reg1, dst->reg1);
+ pr_debug_type_name(&tsr->type, tsr->kind);
+}
+#endif /* HAVE_LIBDW_SUPPORT */
+
+const struct arch *arch__new_powerpc(const struct e_machine_and_e_flags *id,
+ const char *cpuid __maybe_unused)
+{
+ struct arch *arch = zalloc(sizeof(*arch));
+
+ if (!arch)
+ return NULL;
+
+ arch->name = "powerpc";
+ arch->id = *id;
+ arch->objdump.comment_char = '#';
+ annotate_opts.show_asm_raw = true;
+ arch->associate_instruction_ops = powerpc__associate_instruction_ops;
+#ifdef HAVE_LIBDW_SUPPORT
+ arch->update_insn_state = update_insn_state_powerpc;
+#endif
+ return arch;
+}
diff --git a/tools/perf/util/annotate-arch/annotate-riscv64.c b/tools/perf/util/annotate-arch/annotate-riscv64.c
new file mode 100644
index 000000000..29a988fca
--- /dev/null
+++ b/tools/perf/util/annotate-arch/annotate-riscv64.c
@@ -0,0 +1,41 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <string.h>
+#include <linux/compiler.h>
+#include <linux/zalloc.h>
+#include "../disasm.h"
+
+static
+const struct ins_ops *riscv64__associate_ins_ops(struct arch *arch, const char *name)
+{
+ const struct ins_ops *ops = NULL;
+
+ if (!strncmp(name, "jal", 3) ||
+ !strncmp(name, "jr", 2) ||
+ !strncmp(name, "call", 4))
+ ops = &call_ops;
+ else if (!strncmp(name, "ret", 3))
+ ops = &ret_ops;
+ else if (name[0] == 'j' || name[0] == 'b')
+ ops = &jump_ops;
+ else
+ return NULL;
+
+ arch__associate_ins_ops(arch, name, ops);
+
+ return ops;
+}
+
+const struct arch *arch__new_riscv64(const struct e_machine_and_e_flags *id,
+ const char *cpuid __maybe_unused)
+{
+ struct arch *arch = zalloc(sizeof(*arch));
+
+ if (!arch)
+ return NULL;
+
+ arch->name = "riscv";
+ arch->id = *id;
+ arch->objdump.comment_char = '#';
+ arch->associate_instruction_ops = riscv64__associate_ins_ops;
+ return arch;
+}
diff --git a/tools/perf/util/annotate-arch/annotate-s390.c b/tools/perf/util/annotate-arch/annotate-s390.c
new file mode 100644
index 000000000..af9cabd0a
--- /dev/null
+++ b/tools/perf/util/annotate-arch/annotate-s390.c
@@ -0,0 +1,190 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <string.h>
+#include <linux/compiler.h>
+#include "../debug.h"
+#include "../disasm.h"
+#include "../map.h"
+#include "../maps.h"
+#include "../symbol.h"
+#include "../thread.h"
+#include "../annotate.h"
+#include "../annotate-data.h"
+
+static int s390_call__parse(const struct arch *arch, struct ins_operands *ops,
+ struct map_symbol *ms,
+ struct disasm_line *dl __maybe_unused)
+{
+ char *endptr, *tok, *name;
+ struct map *map = ms->map;
+ struct addr_map_symbol target;
+
+ tok = strchr(ops->raw, ',');
+ if (!tok)
+ return -1;
+
+ ops->target.addr = strtoull(tok + 1, &endptr, 16);
+
+ name = strchr(endptr, '<');
+ if (name == NULL)
+ return -1;
+
+ name++;
+
+ if (arch->objdump.skip_functions_char &&
+ strchr(name, arch->objdump.skip_functions_char))
+ return -1;
+
+ tok = strchr(name, '>');
+ if (tok == NULL)
+ return -1;
+
+ *tok = '\0';
+ ops->target.name = strdup(name);
+ *tok = '>';
+
+ if (ops->target.name == NULL)
+ return -1;
+
+ target = (struct addr_map_symbol) {
+ .ms = { .map = map__get(map), },
+ .addr = map__objdump_2mem(map, ops->target.addr),
+ };
+
+ if (maps__find_ams(thread__maps(ms->thread), &target) == 0 &&
+ map__rip_2objdump(target.ms.map, map__map_ip(target.ms.map, target.addr)) == ops->target.addr)
+ ops->target.sym = target.ms.sym;
+
+ addr_map_symbol__exit(&target);
+ return 0;
+}
+
+static const struct ins_ops s390_call_ops = {
+ .parse = s390_call__parse,
+ .scnprintf = call__scnprintf,
+ .is_call = true,
+};
+
+static int s390_mov__parse(const struct arch *arch __maybe_unused,
+ struct ins_operands *ops,
+ struct map_symbol *ms __maybe_unused,
+ struct disasm_line *dl __maybe_unused)
+{
+ char *s = strchr(ops->raw, ','), *target, *endptr;
+
+ if (s == NULL)
+ return -1;
+
+ *s = '\0';
+ ops->source.raw = strdup(ops->raw);
+ *s = ',';
+
+ if (ops->source.raw == NULL)
+ return -1;
+
+ target = ++s;
+ ops->target.raw = strdup(target);
+ if (ops->target.raw == NULL)
+ goto out_free_source;
+
+ ops->target.addr = strtoull(target, &endptr, 16);
+ if (endptr == target)
+ goto out_free_target;
+
+ s = strchr(endptr, '<');
+ if (s == NULL)
+ goto out_free_target;
+ endptr = strchr(s + 1, '>');
+ if (endptr == NULL)
+ goto out_free_target;
+
+ *endptr = '\0';
+ ops->target.name = strdup(s + 1);
+ *endptr = '>';
+ if (ops->target.name == NULL)
+ goto out_free_target;
+
+ return 0;
+
+out_free_target:
+ zfree(&ops->target.raw);
+out_free_source:
+ zfree(&ops->source.raw);
+ return -1;
+}
+
+
+static const struct ins_ops s390_mov_ops = {
+ .parse = s390_mov__parse,
+ .scnprintf = mov__scnprintf,
+};
+
+static const struct ins_ops *s390__associate_ins_ops(struct arch *arch, const char *name)
+{
+ const struct ins_ops *ops = NULL;
+
+ /* catch all kind of jumps */
+ if (strchr(name, 'j') ||
+ !strncmp(name, "bct", 3) ||
+ !strncmp(name, "br", 2))
+ ops = &jump_ops;
+ /* override call/returns */
+ if (!strcmp(name, "bras") ||
+ !strcmp(name, "brasl") ||
+ !strcmp(name, "basr"))
+ ops = &s390_call_ops;
+ if (!strcmp(name, "br"))
+ ops = &ret_ops;
+ /* override load/store relative to PC */
+ if (!strcmp(name, "lrl") ||
+ !strcmp(name, "lgrl") ||
+ !strcmp(name, "lgfrl") ||
+ !strcmp(name, "llgfrl") ||
+ !strcmp(name, "strl") ||
+ !strcmp(name, "stgrl"))
+ ops = &s390_mov_ops;
+
+ if (ops)
+ arch__associate_ins_ops(arch, name, ops);
+ return ops;
+}
+
+static int s390__cpuid_parse(struct arch *arch, const char *cpuid)
+{
+ unsigned int family;
+ char model[16], model_c[16], cpumf_v[16], cpumf_a[16];
+ int ret;
+
+ /*
+ * cpuid string format:
+ * "IBM,family,model-capacity,model[,cpum_cf-version,cpum_cf-authorization]"
+ */
+ ret = sscanf(cpuid, "%*[^,],%u,%[^,],%[^,],%[^,],%s", &family, model_c,
+ model, cpumf_v, cpumf_a);
+ if (ret >= 2) {
+ arch->family = family;
+ arch->model = 0;
+ return 0;
+ }
+
+ return -1;
+}
+
+const struct arch *arch__new_s390(const struct e_machine_and_e_flags *id, const char *cpuid)
+{
+ struct arch *arch = zalloc(sizeof(*arch));
+
+ if (!arch)
+ return NULL;
+
+ arch->name = "s390";
+ arch->id = *id;
+ arch->associate_instruction_ops = s390__associate_ins_ops;
+ if (cpuid) {
+ if (s390__cpuid_parse(arch, cpuid)) {
+ errno = SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_CPUID_PARSING;
+ return NULL;
+ }
+ }
+ arch->objdump.comment_char = '#';
+ return arch;
+}
diff --git a/tools/perf/util/annotate-arch/annotate-sparc.c b/tools/perf/util/annotate-arch/annotate-sparc.c
new file mode 100644
index 000000000..2f07bc7a5
--- /dev/null
+++ b/tools/perf/util/annotate-arch/annotate-sparc.c
@@ -0,0 +1,177 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <string.h>
+#include <linux/compiler.h>
+#include <linux/zalloc.h>
+#include "../../util/disasm.h"
+
+static int is_branch_cond(const char *cond)
+{
+ if (cond[0] == '\0')
+ return 1;
+
+ if (cond[0] == 'a' && cond[1] == '\0')
+ return 1;
+
+ if (cond[0] == 'c' &&
+ (cond[1] == 'c' || cond[1] == 's') &&
+ cond[2] == '\0')
+ return 1;
+
+ if (cond[0] == 'e' &&
+ (cond[1] == '\0' ||
+ (cond[1] == 'q' && cond[2] == '\0')))
+ return 1;
+
+ if (cond[0] == 'g' &&
+ (cond[1] == '\0' ||
+ (cond[1] == 't' && cond[2] == '\0') ||
+ (cond[1] == 'e' && cond[2] == '\0') ||
+ (cond[1] == 'e' && cond[2] == 'u' && cond[3] == '\0')))
+ return 1;
+
+ if (cond[0] == 'l' &&
+ (cond[1] == '\0' ||
+ (cond[1] == 't' && cond[2] == '\0') ||
+ (cond[1] == 'u' && cond[2] == '\0') ||
+ (cond[1] == 'e' && cond[2] == '\0') ||
+ (cond[1] == 'e' && cond[2] == 'u' && cond[3] == '\0')))
+ return 1;
+
+ if (cond[0] == 'n' &&
+ (cond[1] == '\0' ||
+ (cond[1] == 'e' && cond[2] == '\0') ||
+ (cond[1] == 'z' && cond[2] == '\0') ||
+ (cond[1] == 'e' && cond[2] == 'g' && cond[3] == '\0')))
+ return 1;
+
+ if (cond[0] == 'b' &&
+ cond[1] == 'p' &&
+ cond[2] == 'o' &&
+ cond[3] == 's' &&
+ cond[4] == '\0')
+ return 1;
+
+ if (cond[0] == 'v' &&
+ (cond[1] == 'c' || cond[1] == 's') &&
+ cond[2] == '\0')
+ return 1;
+
+ if (cond[0] == 'b' &&
+ cond[1] == 'z' &&
+ cond[2] == '\0')
+ return 1;
+
+ return 0;
+}
+
+static int is_branch_reg_cond(const char *cond)
+{
+ if ((cond[0] == 'n' || cond[0] == 'l') &&
+ cond[1] == 'z' &&
+ cond[2] == '\0')
+ return 1;
+
+ if (cond[0] == 'z' &&
+ cond[1] == '\0')
+ return 1;
+
+ if ((cond[0] == 'g' || cond[0] == 'l') &&
+ cond[1] == 'e' &&
+ cond[2] == 'z' &&
+ cond[3] == '\0')
+ return 1;
+
+ if (cond[0] == 'g' &&
+ cond[1] == 'z' &&
+ cond[2] == '\0')
+ return 1;
+
+ return 0;
+}
+
+static int is_branch_float_cond(const char *cond)
+{
+ if (cond[0] == '\0')
+ return 1;
+
+ if ((cond[0] == 'a' || cond[0] == 'e' ||
+ cond[0] == 'z' || cond[0] == 'g' ||
+ cond[0] == 'l' || cond[0] == 'n' ||
+ cond[0] == 'o' || cond[0] == 'u') &&
+ cond[1] == '\0')
+ return 1;
+
+ if (((cond[0] == 'g' && cond[1] == 'e') ||
+ (cond[0] == 'l' && (cond[1] == 'e' ||
+ cond[1] == 'g')) ||
+ (cond[0] == 'n' && (cond[1] == 'e' ||
+ cond[1] == 'z')) ||
+ (cond[0] == 'u' && (cond[1] == 'e' ||
+ cond[1] == 'g' ||
+ cond[1] == 'l'))) &&
+ cond[2] == '\0')
+ return 1;
+
+ if (cond[0] == 'u' &&
+ (cond[1] == 'g' || cond[1] == 'l') &&
+ cond[2] == 'e' &&
+ cond[3] == '\0')
+ return 1;
+
+ return 0;
+}
+
+static const struct ins_ops *sparc__associate_instruction_ops(struct arch *arch, const char *name)
+{
+ const struct ins_ops *ops = NULL;
+
+ if (!strcmp(name, "call") ||
+ !strcmp(name, "jmp") ||
+ !strcmp(name, "jmpl")) {
+ ops = &call_ops;
+ } else if (!strcmp(name, "ret") ||
+ !strcmp(name, "retl") ||
+ !strcmp(name, "return")) {
+ ops = &ret_ops;
+ } else if (!strcmp(name, "mov")) {
+ ops = &mov_ops;
+ } else {
+ if (name[0] == 'c' &&
+ (name[1] == 'w' || name[1] == 'x'))
+ name += 2;
+
+ if (name[0] == 'b') {
+ const char *cond = name + 1;
+
+ if (cond[0] == 'r') {
+ if (is_branch_reg_cond(cond + 1))
+ ops = &jump_ops;
+ } else if (is_branch_cond(cond)) {
+ ops = &jump_ops;
+ }
+ } else if (name[0] == 'f' && name[1] == 'b') {
+ if (is_branch_float_cond(name + 2))
+ ops = &jump_ops;
+ }
+ }
+
+ if (ops)
+ arch__associate_ins_ops(arch, name, ops);
+
+ return ops;
+}
+
+const struct arch *arch__new_sparc(const struct e_machine_and_e_flags *id,
+ const char *cpuid __maybe_unused)
+{
+ struct arch *arch = zalloc(sizeof(*arch));
+
+ if (!arch)
+ return NULL;
+
+ arch->name = "sparc";
+ arch->id = *id;
+ arch->associate_instruction_ops = sparc__associate_instruction_ops;
+ arch->objdump.comment_char = '#';
+ return arch;
+}
diff --git a/tools/perf/util/annotate-arch/annotate-x86.c b/tools/perf/util/annotate-arch/annotate-x86.c
new file mode 100644
index 000000000..7e6136536
--- /dev/null
+++ b/tools/perf/util/annotate-arch/annotate-x86.c
@@ -0,0 +1,852 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <string.h>
+#include <linux/compiler.h>
+#include <linux/zalloc.h>
+#include <assert.h>
+#include <inttypes.h>
+#include "../annotate-data.h"
+#include "../debug.h"
+#include "../disasm.h"
+#include "../dso.h"
+#include "../map.h"
+#include "../string2.h" // strstarts
+#include "../symbol.h"
+
+/*
+ * x86 instruction nmemonic table to parse disasm lines for annotate.
+ * This table is searched twice - one for exact match and another for
+ * match without a size suffix (b, w, l, q) in case of AT&T syntax.
+ *
+ * So this table should not have entries with the suffix unless it's
+ * a complete different instruction than ones without the suffix.
+ */
+static const struct ins x86__instructions[] = {
+ { .name = "adc", .ops = &mov_ops, },
+ { .name = "add", .ops = &mov_ops, },
+ { .name = "addsd", .ops = &mov_ops, },
+ { .name = "and", .ops = &mov_ops, },
+ { .name = "andpd", .ops = &mov_ops, },
+ { .name = "andps", .ops = &mov_ops, },
+ { .name = "bsr", .ops = &mov_ops, },
+ { .name = "bt", .ops = &mov_ops, },
+ { .name = "btr", .ops = &mov_ops, },
+ { .name = "bts", .ops = &mov_ops, },
+ { .name = "call", .ops = &call_ops, },
+ { .name = "cmovae", .ops = &mov_ops, },
+ { .name = "cmovbe", .ops = &mov_ops, },
+ { .name = "cmove", .ops = &mov_ops, },
+ { .name = "cmp", .ops = &mov_ops, },
+ { .name = "cmpxch", .ops = &mov_ops, },
+ { .name = "cmpxchg", .ops = &mov_ops, },
+ { .name = "cs", .ops = &mov_ops, },
+ { .name = "dec", .ops = &dec_ops, },
+ { .name = "divsd", .ops = &mov_ops, },
+ { .name = "divss", .ops = &mov_ops, },
+ { .name = "gs", .ops = &mov_ops, },
+ { .name = "imul", .ops = &mov_ops, },
+ { .name = "inc", .ops = &dec_ops, },
+ { .name = "ja", .ops = &jump_ops, },
+ { .name = "jae", .ops = &jump_ops, },
+ { .name = "jb", .ops = &jump_ops, },
+ { .name = "jbe", .ops = &jump_ops, },
+ { .name = "jc", .ops = &jump_ops, },
+ { .name = "jcxz", .ops = &jump_ops, },
+ { .name = "je", .ops = &jump_ops, },
+ { .name = "jecxz", .ops = &jump_ops, },
+ { .name = "jg", .ops = &jump_ops, },
+ { .name = "jge", .ops = &jump_ops, },
+ { .name = "jl", .ops = &jump_ops, },
+ { .name = "jle", .ops = &jump_ops, },
+ { .name = "jmp", .ops = &jump_ops, },
+ { .name = "jna", .ops = &jump_ops, },
+ { .name = "jnae", .ops = &jump_ops, },
+ { .name = "jnb", .ops = &jump_ops, },
+ { .name = "jnbe", .ops = &jump_ops, },
+ { .name = "jnc", .ops = &jump_ops, },
+ { .name = "jne", .ops = &jump_ops, },
+ { .name = "jng", .ops = &jump_ops, },
+ { .name = "jnge", .ops = &jump_ops, },
+ { .name = "jnl", .ops = &jump_ops, },
+ { .name = "jnle", .ops = &jump_ops, },
+ { .name = "jno", .ops = &jump_ops, },
+ { .name = "jnp", .ops = &jump_ops, },
+ { .name = "jns", .ops = &jump_ops, },
+ { .name = "jnz", .ops = &jump_ops, },
+ { .name = "jo", .ops = &jump_ops, },
+ { .name = "jp", .ops = &jump_ops, },
+ { .name = "jpe", .ops = &jump_ops, },
+ { .name = "jpo", .ops = &jump_ops, },
+ { .name = "jrcxz", .ops = &jump_ops, },
+ { .name = "js", .ops = &jump_ops, },
+ { .name = "jz", .ops = &jump_ops, },
+ { .name = "lea", .ops = &mov_ops, },
+ { .name = "lock", .ops = &lock_ops, },
+ { .name = "mov", .ops = &mov_ops, },
+ { .name = "movapd", .ops = &mov_ops, },
+ { .name = "movaps", .ops = &mov_ops, },
+ { .name = "movdqa", .ops = &mov_ops, },
+ { .name = "movdqu", .ops = &mov_ops, },
+ { .name = "movsb", .ops = &mov_ops, },
+ { .name = "movsd", .ops = &mov_ops, },
+ { .name = "movsl", .ops = &mov_ops, },
+ { .name = "movss", .ops = &mov_ops, },
+ { .name = "movsw", .ops = &mov_ops, },
+ { .name = "movupd", .ops = &mov_ops, },
+ { .name = "movups", .ops = &mov_ops, },
+ { .name = "movzb", .ops = &mov_ops, },
+ { .name = "movzl", .ops = &mov_ops, },
+ { .name = "movzw", .ops = &mov_ops, },
+ { .name = "mulsd", .ops = &mov_ops, },
+ { .name = "mulss", .ops = &mov_ops, },
+ { .name = "nop", .ops = &nop_ops, },
+ { .name = "or", .ops = &mov_ops, },
+ { .name = "orps", .ops = &mov_ops, },
+ { .name = "paddq", .ops = &mov_ops, },
+ { .name = "pand", .ops = &mov_ops, },
+ { .name = "pcmpeqb", .ops = &mov_ops, },
+ { .name = "por", .ops = &mov_ops, },
+ { .name = "rcl", .ops = &mov_ops, },
+ { .name = "ret", .ops = &ret_ops, },
+ { .name = "sbb", .ops = &mov_ops, },
+ { .name = "sete", .ops = &mov_ops, },
+ { .name = "sub", .ops = &mov_ops, },
+ { .name = "subsd", .ops = &mov_ops, },
+ { .name = "test", .ops = &mov_ops, },
+ { .name = "tzcnt", .ops = &mov_ops, },
+ { .name = "ucomisd", .ops = &mov_ops, },
+ { .name = "ucomiss", .ops = &mov_ops, },
+ { .name = "vaddsd", .ops = &mov_ops, },
+ { .name = "vandpd", .ops = &mov_ops, },
+ { .name = "vmovdqa", .ops = &mov_ops, },
+ { .name = "vmovq", .ops = &mov_ops, },
+ { .name = "vmovsd", .ops = &mov_ops, },
+ { .name = "vmulsd", .ops = &mov_ops, },
+ { .name = "vorpd", .ops = &mov_ops, },
+ { .name = "vsubsd", .ops = &mov_ops, },
+ { .name = "vucomisd", .ops = &mov_ops, },
+ { .name = "xadd", .ops = &mov_ops, },
+ { .name = "xbegin", .ops = &jump_ops, },
+ { .name = "xchg", .ops = &mov_ops, },
+ { .name = "xor", .ops = &mov_ops, },
+ { .name = "xorpd", .ops = &mov_ops, },
+ { .name = "xorps", .ops = &mov_ops, },
+};
+
+static bool amd__ins_is_fused(const struct arch *arch, const char *ins1,
+ const char *ins2)
+{
+ if (strstr(ins2, "jmp"))
+ return false;
+
+ /* Family >= 15h supports cmp/test + branch fusion */
+ if (arch->family >= 0x15 && (strstarts(ins1, "test") ||
+ (strstarts(ins1, "cmp") && !strstr(ins1, "xchg")))) {
+ return true;
+ }
+
+ /* Family >= 19h supports some ALU + branch fusion */
+ if (arch->family >= 0x19 && (strstarts(ins1, "add") ||
+ strstarts(ins1, "sub") || strstarts(ins1, "and") ||
+ strstarts(ins1, "inc") || strstarts(ins1, "dec") ||
+ strstarts(ins1, "or") || strstarts(ins1, "xor"))) {
+ return true;
+ }
+
+ return false;
+}
+
+static bool intel__ins_is_fused(const struct arch *arch, const char *ins1,
+ const char *ins2)
+{
+ if (arch->family != 6 || arch->model < 0x1e || strstr(ins2, "jmp"))
+ return false;
+
+ if (arch->model == 0x1e) {
+ /* Nehalem */
+ if ((strstr(ins1, "cmp") && !strstr(ins1, "xchg")) ||
+ strstr(ins1, "test")) {
+ return true;
+ }
+ } else {
+ /* Newer platform */
+ if ((strstr(ins1, "cmp") && !strstr(ins1, "xchg")) ||
+ strstr(ins1, "test") ||
+ strstr(ins1, "add") ||
+ strstr(ins1, "sub") ||
+ strstr(ins1, "and") ||
+ strstr(ins1, "inc") ||
+ strstr(ins1, "dec")) {
+ return true;
+ }
+ }
+
+ return false;
+}
+
+static int x86__cpuid_parse(struct arch *arch, const char *cpuid)
+{
+ unsigned int family, model, stepping;
+ int ret;
+
+ /*
+ * cpuid = "GenuineIntel,family,model,stepping"
+ */
+ ret = sscanf(cpuid, "%*[^,],%u,%u,%u", &family, &model, &stepping);
+ if (ret == 3) {
+ arch->family = family;
+ arch->model = model;
+ arch->ins_is_fused = strstarts(cpuid, "AuthenticAMD") ?
+ amd__ins_is_fused :
+ intel__ins_is_fused;
+ return 0;
+ }
+
+ return -1;
+}
+
+#ifdef HAVE_LIBDW_SUPPORT
+static void invalidate_reg_state(struct type_state_reg *reg)
+{
+ reg->kind = TSR_KIND_INVALID;
+ reg->ok = false;
+ reg->lifetime_active = false;
+ reg->lifetime_end = 0;
+ reg->copied_from = -1;
+}
+
+static void update_insn_state_x86(struct type_state *state,
+ struct data_loc_info *dloc, Dwarf_Die *cu_die,
+ struct disasm_line *dl)
+{
+ struct annotated_insn_loc loc;
+ struct annotated_op_loc *src = &loc.ops[INSN_OP_SOURCE];
+ struct annotated_op_loc *dst = &loc.ops[INSN_OP_TARGET];
+ struct type_state_reg *tsr;
+ Dwarf_Die type_die;
+ u32 insn_offset = dl->al.offset;
+ int fbreg = dloc->fbreg;
+ int fboff = 0;
+
+ if (annotate_get_insn_location(dloc->arch, dl, &loc) < 0)
+ return;
+
+ if (ins__is_call(&dl->ins)) {
+ struct symbol *func = dl->ops.target.sym;
+ const char *call_name;
+ u64 call_addr;
+
+ /* Try to resolve the call target name */
+ if (func)
+ call_name = func->name;
+ else
+ call_name = dl->ops.target.name;
+
+ /* __fentry__ will preserve all registers */
+ if (call_name && !strcmp(call_name, "__fentry__"))
+ return;
+
+ if (call_name)
+ pr_debug_dtp("call [%x] %s\n", insn_offset, call_name);
+ else
+ pr_debug_dtp("call [%x] <unknown>\n", insn_offset);
+
+ /* Invalidate caller-saved registers after call */
+ call_addr = map__rip_2objdump(dloc->ms->map,
+ dloc->ms->sym->start + dl->al.offset);
+ for (unsigned i = 0; i < ARRAY_SIZE(state->regs); i++) {
+ struct type_state_reg *reg = &state->regs[i];
+
+ if (!reg->caller_saved)
+ continue;
+ /* Keep register valid within DWARF location lifetime */
+ if (reg->lifetime_active && call_addr < reg->lifetime_end)
+ continue;
+ invalidate_reg_state(reg);
+ }
+
+ /* Update register with the return type (if any) */
+ if (call_name && die_find_func_rettype(cu_die, call_name, &type_die)) {
+ tsr = &state->regs[state->ret_reg];
+ tsr->type = type_die;
+ tsr->kind = TSR_KIND_TYPE;
+ tsr->offset = 0;
+ tsr->ok = true;
+
+ pr_debug_dtp("call [%x] return -> reg%d",
+ insn_offset, state->ret_reg);
+ pr_debug_type_name(&type_die, tsr->kind);
+ }
+ return;
+ }
+
+ if (!strncmp(dl->ins.name, "add", 3)) {
+ u64 imm_value = -1ULL;
+ int offset;
+ const char *var_name = NULL;
+ struct map_symbol *ms = dloc->ms;
+ u64 ip = ms->sym->start + dl->al.offset;
+
+ if (!has_reg_type(state, dst->reg1))
+ return;
+
+ tsr = &state->regs[dst->reg1];
+ tsr->copied_from = -1;
+ tsr->lifetime_active = false;
+ tsr->lifetime_end = 0;
+
+ if (src->imm)
+ imm_value = src->offset;
+ else if (has_reg_type(state, src->reg1) &&
+ state->regs[src->reg1].kind == TSR_KIND_CONST)
+ imm_value = state->regs[src->reg1].imm_value;
+ else if (src->reg1 == DWARF_REG_PC) {
+ u64 var_addr = annotate_calc_pcrel(dloc->ms, ip,
+ src->offset, dl);
+
+ if (get_global_var_info(dloc, var_addr,
+ &var_name, &offset) &&
+ !strcmp(var_name, "this_cpu_off") &&
+ tsr->kind == TSR_KIND_CONST) {
+ tsr->kind = TSR_KIND_PERCPU_BASE;
+ tsr->offset = 0;
+ tsr->ok = true;
+ imm_value = tsr->imm_value;
+ }
+ }
+ else
+ return;
+
+ /* Ignore add to non-pointer or non-const types */
+ if (tsr->kind == TSR_KIND_POINTER ||
+ (dwarf_tag(&tsr->type) == DW_TAG_pointer_type &&
+ src->reg1 != DWARF_REG_PC && tsr->kind == TSR_KIND_TYPE && !dst->mem_ref)) {
+ tsr->offset += imm_value;
+ pr_debug_dtp("add [%x] offset %#"PRIx64" to reg%d",
+ insn_offset, imm_value, dst->reg1);
+ pr_debug_type_name(&tsr->type, tsr->kind);
+ }
+
+ if (tsr->kind == TSR_KIND_CONST)
+ tsr->imm_value += imm_value;
+
+ if (tsr->kind != TSR_KIND_PERCPU_BASE)
+ return;
+
+ if (get_global_var_type(cu_die, dloc, ip, imm_value, &offset,
+ &type_die) && offset == 0) {
+ /*
+ * This is not a pointer type, but it should be treated
+ * as a pointer.
+ */
+ tsr->type = type_die;
+ tsr->kind = TSR_KIND_PERCPU_POINTER;
+ tsr->offset = 0;
+ tsr->ok = true;
+
+ pr_debug_dtp("add [%x] percpu %#"PRIx64" -> reg%d",
+ insn_offset, imm_value, dst->reg1);
+ pr_debug_type_name(&tsr->type, tsr->kind);
+ }
+ return;
+ }
+
+ if (!strncmp(dl->ins.name, "sub", 3)) {
+ u64 imm_value = -1ULL;
+
+ if (!has_reg_type(state, dst->reg1))
+ return;
+
+ tsr = &state->regs[dst->reg1];
+ tsr->copied_from = -1;
+ tsr->lifetime_active = false;
+ tsr->lifetime_end = 0;
+
+ if (src->imm)
+ imm_value = src->offset;
+ else if (has_reg_type(state, src->reg1) &&
+ state->regs[src->reg1].kind == TSR_KIND_CONST)
+ imm_value = state->regs[src->reg1].imm_value;
+
+ if (tsr->kind == TSR_KIND_POINTER ||
+ (dwarf_tag(&tsr->type) == DW_TAG_pointer_type &&
+ src->reg1 != DWARF_REG_PC && tsr->kind == TSR_KIND_TYPE && !dst->mem_ref)) {
+ tsr->offset -= imm_value;
+ pr_debug_dtp("sub [%x] offset %#"PRIx64" to reg%d",
+ insn_offset, imm_value, dst->reg1);
+ pr_debug_type_name(&tsr->type, tsr->kind);
+ }
+
+ if (tsr->kind == TSR_KIND_CONST)
+ tsr->imm_value -= imm_value;
+
+ return;
+ }
+
+ if (!strncmp(dl->ins.name, "lea", 3)) {
+ int sreg = src->reg1;
+ struct type_state_reg src_tsr;
+
+ if (!has_reg_type(state, sreg) ||
+ !has_reg_type(state, dst->reg1) ||
+ !src->mem_ref)
+ return;
+
+ src_tsr = state->regs[sreg];
+ tsr = &state->regs[dst->reg1];
+
+ invalidate_reg_state(tsr);
+
+ /* Case 1: Based on stack pointer or frame pointer */
+ if (sreg == fbreg || sreg == state->stack_reg) {
+ struct type_state_stack *stack;
+ int offset = src->offset - fboff;
+
+ stack = find_stack_state(state, offset);
+ if (!stack)
+ return;
+
+ tsr->type = stack->type;
+ tsr->kind = TSR_KIND_POINTER;
+ tsr->offset = offset - stack->offset;
+ tsr->ok = true;
+
+ if (sreg == fbreg) {
+ pr_debug_dtp("lea [%x] address of -%#x(stack) -> reg%d",
+ insn_offset, -src->offset, dst->reg1);
+ } else {
+ pr_debug_dtp("lea [%x] address of %#x(reg%d) -> reg%d",
+ insn_offset, src->offset, sreg, dst->reg1);
+ }
+
+ pr_debug_type_name(&tsr->type, tsr->kind);
+ }
+ /* Case 2: Based on a register holding a typed pointer */
+ else if (src_tsr.ok && (src_tsr.kind == TSR_KIND_POINTER ||
+ (dwarf_tag(&src_tsr.type) == DW_TAG_pointer_type &&
+ src_tsr.kind == TSR_KIND_TYPE))) {
+
+ if (src_tsr.kind == TSR_KIND_TYPE &&
+ __die_get_real_type(&state->regs[sreg].type, &type_die) == NULL)
+ return;
+
+ if (src_tsr.kind == TSR_KIND_POINTER)
+ type_die = state->regs[sreg].type;
+
+ /* Check if the target type has a member at the new offset */
+ if (die_get_member_type(&type_die,
+ src->offset + src_tsr.offset, &type_die) == NULL)
+ return;
+
+ tsr->type = src_tsr.type;
+ tsr->kind = src_tsr.kind;
+ tsr->offset = src->offset + src_tsr.offset;
+ tsr->ok = true;
+
+ pr_debug_dtp("lea [%x] address of %s%#x(reg%d) -> reg%d",
+ insn_offset, src->offset < 0 ? "-" : "",
+ abs(src->offset), sreg, dst->reg1);
+
+ pr_debug_type_name(&tsr->type, tsr->kind);
+ }
+ return;
+ }
+
+ /* Invalidate register states for other ops which may change pointers */
+ if (has_reg_type(state, dst->reg1) && !dst->mem_ref &&
+ dwarf_tag(&state->regs[dst->reg1].type) == DW_TAG_pointer_type) {
+ if (!strncmp(dl->ins.name, "imul", 4) || !strncmp(dl->ins.name, "mul", 3) ||
+ !strncmp(dl->ins.name, "idiv", 4) || !strncmp(dl->ins.name, "div", 3) ||
+ !strncmp(dl->ins.name, "shl", 3) || !strncmp(dl->ins.name, "shr", 3) ||
+ !strncmp(dl->ins.name, "sar", 3) || !strncmp(dl->ins.name, "and", 3) ||
+ !strncmp(dl->ins.name, "or", 2) || !strncmp(dl->ins.name, "neg", 3) ||
+ !strncmp(dl->ins.name, "inc", 3) || !strncmp(dl->ins.name, "dec", 3)) {
+ pr_debug_dtp("%s [%x] invalidate reg%d\n",
+ dl->ins.name, insn_offset, dst->reg1);
+ invalidate_reg_state(&state->regs[dst->reg1]);
+ return;
+ }
+
+ if (!strncmp(dl->ins.name, "xor", 3) && dst->reg1 == src->reg1) {
+ /* xor reg, reg clears the register */
+ pr_debug_dtp("xor [%x] clear reg%d\n",
+ insn_offset, dst->reg1);
+
+ state->regs[dst->reg1].kind = TSR_KIND_CONST;
+ state->regs[dst->reg1].imm_value = 0;
+ state->regs[dst->reg1].ok = true;
+ state->regs[dst->reg1].lifetime_active = false;
+ state->regs[dst->reg1].lifetime_end = 0;
+ state->regs[dst->reg1].copied_from = -1;
+ return;
+ }
+ }
+
+ if (strncmp(dl->ins.name, "mov", 3))
+ return;
+
+ if (dloc->fb_cfa) {
+ u64 ip = dloc->ms->sym->start + dl->al.offset;
+ u64 pc = map__rip_2objdump(dloc->ms->map, ip);
+
+ if (die_get_cfa(dloc->di->dbg, pc, &fbreg, &fboff) < 0)
+ fbreg = -1;
+ }
+
+ /* Case 1. register to register or segment:offset to register transfers */
+ if (!src->mem_ref && !dst->mem_ref) {
+ if (!has_reg_type(state, dst->reg1))
+ return;
+
+ tsr = &state->regs[dst->reg1];
+ tsr->copied_from = -1;
+
+ if (dso__kernel(map__dso(dloc->ms->map)) &&
+ src->segment == INSN_SEG_X86_GS && src->imm) {
+ u64 ip = dloc->ms->sym->start + dl->al.offset;
+ u64 var_addr;
+ int offset;
+
+ /*
+ * In kernel, %gs points to a per-cpu region for the
+ * current CPU. Access with a constant offset should
+ * be treated as a global variable access.
+ */
+ var_addr = src->offset;
+
+ if (var_addr == 40) {
+ tsr->kind = TSR_KIND_CANARY;
+ tsr->offset = 0;
+ tsr->ok = true;
+
+ pr_debug_dtp("mov [%x] stack canary -> reg%d\n",
+ insn_offset, dst->reg1);
+ return;
+ }
+
+ if (!get_global_var_type(cu_die, dloc, ip, var_addr,
+ &offset, &type_die) ||
+ !die_get_member_type(&type_die, offset, &type_die)) {
+ invalidate_reg_state(tsr);
+ return;
+ }
+
+ tsr->type = type_die;
+ tsr->kind = TSR_KIND_TYPE;
+ tsr->offset = 0;
+ tsr->ok = true;
+
+ pr_debug_dtp("mov [%x] this-cpu addr=%#"PRIx64" -> reg%d",
+ insn_offset, var_addr, dst->reg1);
+ pr_debug_type_name(&tsr->type, tsr->kind);
+ return;
+ }
+
+ if (src->imm) {
+ tsr->kind = TSR_KIND_CONST;
+ tsr->imm_value = src->offset;
+ tsr->offset = 0;
+ tsr->ok = true;
+
+ pr_debug_dtp("mov [%x] imm=%#x -> reg%d\n",
+ insn_offset, tsr->imm_value, dst->reg1);
+ return;
+ }
+
+ if (!has_reg_type(state, src->reg1) ||
+ !state->regs[src->reg1].ok) {
+ invalidate_reg_state(tsr);
+ return;
+ }
+
+ tsr->type = state->regs[src->reg1].type;
+ tsr->kind = state->regs[src->reg1].kind;
+ tsr->imm_value = state->regs[src->reg1].imm_value;
+ tsr->offset = state->regs[src->reg1].offset;
+ tsr->lifetime_active = state->regs[src->reg1].lifetime_active;
+ tsr->lifetime_end = state->regs[src->reg1].lifetime_end;
+ tsr->ok = true;
+
+ /* To copy back the variable type later (hopefully) */
+ if (tsr->kind == TSR_KIND_TYPE || tsr->kind == TSR_KIND_POINTER)
+ tsr->copied_from = src->reg1;
+
+ pr_debug_dtp("mov [%x] reg%d -> reg%d",
+ insn_offset, src->reg1, dst->reg1);
+ pr_debug_type_name(&tsr->type, tsr->kind);
+ }
+ /* Case 2. memory to register transers */
+ if (src->mem_ref && !dst->mem_ref) {
+ int sreg = src->reg1;
+
+ if (!has_reg_type(state, dst->reg1))
+ return;
+
+ tsr = &state->regs[dst->reg1];
+ tsr->copied_from = -1;
+
+retry:
+ /* Check stack variables with offset */
+ if (sreg == fbreg || sreg == state->stack_reg) {
+ struct type_state_stack *stack;
+ int offset = src->offset - fboff;
+
+ stack = find_stack_state(state, offset);
+ if (stack == NULL) {
+ invalidate_reg_state(tsr);
+ return;
+ } else if (!stack->compound) {
+ tsr->type = stack->type;
+ tsr->kind = stack->kind;
+ tsr->offset = stack->ptr_offset;
+ tsr->ok = true;
+ } else if (die_get_member_type(&stack->type,
+ offset - stack->offset,
+ &type_die)) {
+ tsr->type = type_die;
+ tsr->kind = TSR_KIND_TYPE;
+ tsr->offset = 0;
+ tsr->ok = true;
+ } else {
+ invalidate_reg_state(tsr);
+ return;
+ }
+
+ if (sreg == fbreg) {
+ pr_debug_dtp("mov [%x] -%#x(stack) -> reg%d",
+ insn_offset, -offset, dst->reg1);
+ } else {
+ pr_debug_dtp("mov [%x] %#x(reg%d) -> reg%d",
+ insn_offset, offset, sreg, dst->reg1);
+ }
+ pr_debug_type_name(&tsr->type, tsr->kind);
+ }
+ /* And then dereference the pointer if it has one */
+ else if (has_reg_type(state, sreg) && state->regs[sreg].ok &&
+ state->regs[sreg].kind == TSR_KIND_TYPE &&
+ die_deref_ptr_type(&state->regs[sreg].type,
+ src->offset + state->regs[sreg].offset, &type_die)) {
+ tsr->type = type_die;
+ tsr->kind = TSR_KIND_TYPE;
+ tsr->offset = 0;
+ tsr->ok = true;
+
+ pr_debug_dtp("mov [%x] %#x(reg%d) -> reg%d",
+ insn_offset, src->offset, sreg, dst->reg1);
+ pr_debug_type_name(&tsr->type, tsr->kind);
+ }
+ /* Handle dereference of TSR_KIND_POINTER registers */
+ else if (has_reg_type(state, sreg) && state->regs[sreg].ok &&
+ state->regs[sreg].kind == TSR_KIND_POINTER &&
+ die_get_member_type(&state->regs[sreg].type,
+ src->offset + state->regs[sreg].offset, &type_die)) {
+ tsr->type = state->regs[sreg].type;
+ tsr->kind = TSR_KIND_TYPE;
+ tsr->offset = src->offset + state->regs[sreg].offset;
+ tsr->ok = true;
+
+ pr_debug_dtp("mov [%x] addr %#x(reg%d) -> reg%d",
+ insn_offset, src->offset, sreg, dst->reg1);
+ pr_debug_type_name(&tsr->type, tsr->kind);
+ }
+ /* Or check if it's a global variable */
+ else if (sreg == DWARF_REG_PC) {
+ struct map_symbol *ms = dloc->ms;
+ u64 ip = ms->sym->start + dl->al.offset;
+ u64 addr;
+ int offset;
+
+ addr = annotate_calc_pcrel(ms, ip, src->offset, dl);
+
+ if (!get_global_var_type(cu_die, dloc, ip, addr, &offset,
+ &type_die) ||
+ !die_get_member_type(&type_die, offset, &type_die)) {
+ invalidate_reg_state(tsr);
+ return;
+ }
+
+ tsr->type = type_die;
+ tsr->kind = TSR_KIND_TYPE;
+ tsr->offset = 0;
+ tsr->ok = true;
+
+ pr_debug_dtp("mov [%x] global addr=%"PRIx64" -> reg%d",
+ insn_offset, addr, dst->reg1);
+ pr_debug_type_name(&type_die, tsr->kind);
+ }
+ /* And check percpu access with base register */
+ else if (has_reg_type(state, sreg) &&
+ state->regs[sreg].kind == TSR_KIND_PERCPU_BASE) {
+ u64 ip = dloc->ms->sym->start + dl->al.offset;
+ u64 var_addr = src->offset;
+ int offset;
+
+ if (src->multi_regs) {
+ int reg2 = (sreg == src->reg1) ? src->reg2 : src->reg1;
+
+ if (has_reg_type(state, reg2) && state->regs[reg2].ok &&
+ state->regs[reg2].kind == TSR_KIND_CONST)
+ var_addr += state->regs[reg2].imm_value;
+ }
+
+ /*
+ * In kernel, %gs points to a per-cpu region for the
+ * current CPU. Access with a constant offset should
+ * be treated as a global variable access.
+ */
+ if (get_global_var_type(cu_die, dloc, ip, var_addr,
+ &offset, &type_die) &&
+ die_get_member_type(&type_die, offset, &type_die)) {
+ tsr->type = type_die;
+ tsr->kind = TSR_KIND_TYPE;
+ tsr->offset = 0;
+ tsr->ok = true;
+
+ if (src->multi_regs) {
+ pr_debug_dtp("mov [%x] percpu %#x(reg%d,reg%d) -> reg%d",
+ insn_offset, src->offset, src->reg1,
+ src->reg2, dst->reg1);
+ } else {
+ pr_debug_dtp("mov [%x] percpu %#x(reg%d) -> reg%d",
+ insn_offset, src->offset, sreg, dst->reg1);
+ }
+ pr_debug_type_name(&tsr->type, tsr->kind);
+ } else {
+ invalidate_reg_state(tsr);
+ }
+ }
+ /* And then dereference the calculated pointer if it has one */
+ else if (has_reg_type(state, sreg) && state->regs[sreg].ok &&
+ state->regs[sreg].kind == TSR_KIND_PERCPU_POINTER &&
+ die_get_member_type(&state->regs[sreg].type,
+ src->offset, &type_die)) {
+ tsr->type = type_die;
+ tsr->kind = TSR_KIND_TYPE;
+ tsr->offset = 0;
+ tsr->ok = true;
+
+ pr_debug_dtp("mov [%x] pointer %#x(reg%d) -> reg%d",
+ insn_offset, src->offset, sreg, dst->reg1);
+ pr_debug_type_name(&tsr->type, tsr->kind);
+ }
+ /* Or try another register if any */
+ else if (src->multi_regs && sreg == src->reg1 &&
+ src->reg1 != src->reg2) {
+ sreg = src->reg2;
+ goto retry;
+ }
+ else {
+ int offset;
+ const char *var_name = NULL;
+
+ /* it might be per-cpu variable (in kernel) access */
+ if (src->offset < 0) {
+ if (get_global_var_info(dloc, (s64)src->offset,
+ &var_name, &offset) &&
+ !strcmp(var_name, "__per_cpu_offset")) {
+ tsr->kind = TSR_KIND_PERCPU_BASE;
+ tsr->offset = 0;
+ tsr->ok = true;
+
+ pr_debug_dtp("mov [%x] percpu base reg%d\n",
+ insn_offset, dst->reg1);
+ return;
+ }
+ }
+
+ invalidate_reg_state(tsr);
+ }
+ }
+ /* Case 3. register to memory transfers */
+ if (!src->mem_ref && dst->mem_ref) {
+ if (!has_reg_type(state, src->reg1) ||
+ !state->regs[src->reg1].ok)
+ return;
+
+ /* Check stack variables with offset */
+ if (dst->reg1 == fbreg || dst->reg1 == state->stack_reg) {
+ struct type_state_stack *stack;
+ int offset = dst->offset - fboff;
+
+ tsr = &state->regs[src->reg1];
+
+ stack = find_stack_state(state, offset);
+ if (stack) {
+ /*
+ * The source register is likely to hold a type
+ * of member if it's a compound type. Do not
+ * update the stack variable type since we can
+ * get the member type later by using the
+ * die_get_member_type().
+ */
+ if (!stack->compound)
+ set_stack_state(stack, offset, tsr->kind,
+ &tsr->type, tsr->offset);
+ } else {
+ findnew_stack_state(state, offset, tsr->kind,
+ &tsr->type, tsr->offset);
+ }
+
+ if (dst->reg1 == fbreg) {
+ pr_debug_dtp("mov [%x] reg%d -> -%#x(stack)",
+ insn_offset, src->reg1, -offset);
+ } else {
+ pr_debug_dtp("mov [%x] reg%d -> %#x(reg%d)",
+ insn_offset, src->reg1, offset, dst->reg1);
+ }
+ if (tsr->offset != 0) {
+ pr_debug_dtp(" reg%d offset %#x ->",
+ src->reg1, tsr->offset);
+ }
+
+ pr_debug_type_name(&tsr->type, tsr->kind);
+ }
+ /*
+ * Ignore other transfers since it'd set a value in a struct
+ * and won't change the type.
+ */
+ }
+ /* Case 4. memory to memory transfers (not handled for now) */
+}
+#endif
+
+const struct arch *arch__new_x86(const struct e_machine_and_e_flags *id, const char *cpuid)
+{
+ struct arch *arch = zalloc(sizeof(*arch));
+
+ if (!arch)
+ return NULL;
+
+ arch->name = "x86";
+ arch->id = *id;
+ if (cpuid) {
+ if (x86__cpuid_parse(arch, cpuid)) {
+ errno = SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_CPUID_PARSING;
+ return NULL;
+ }
+ }
+ arch->instructions = x86__instructions;
+ arch->nr_instructions = ARRAY_SIZE(x86__instructions);
+#ifndef NDEBUG
+ {
+ static bool sorted_check;
+
+ if (!sorted_check) {
+ for (size_t i = 0; i < arch->nr_instructions - 1; i++) {
+ assert(strcmp(arch->instructions[i].name,
+ arch->instructions[i + 1].name) <= 0);
+ }
+ sorted_check = true;
+ }
+ }
+#endif
+ arch->sorted_instructions = true;
+ arch->objdump.comment_char = '#';
+ arch->objdump.register_char = '%';
+ arch->objdump.memory_ref_char = '(';
+ arch->objdump.imm_char = '$';
+ arch->insn_suffix = "bwlq";
+#ifdef HAVE_LIBDW_SUPPORT
+ arch->update_insn_state = update_insn_state_x86;
+#endif
+ return arch;
+}