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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /tools/perf/arch/arm/annotate/instructions.c | |
parent | Initial commit. (diff) | |
download | linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.tar.xz linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/perf/arch/arm/annotate/instructions.c')
-rw-r--r-- | tools/perf/arch/arm/annotate/instructions.c | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/tools/perf/arch/arm/annotate/instructions.c b/tools/perf/arch/arm/annotate/instructions.c new file mode 100644 index 000000000..2ff6cedeb --- /dev/null +++ b/tools/perf/arch/arm/annotate/instructions.c @@ -0,0 +1,63 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <linux/compiler.h> +#include <linux/zalloc.h> +#include <sys/types.h> +#include <regex.h> +#include <stdlib.h> + +struct arm_annotate { + regex_t call_insn, + jump_insn; +}; + +static struct ins_ops *arm__associate_instruction_ops(struct arch *arch, const char *name) +{ + struct arm_annotate *arm = arch->priv; + 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; +} + +static int arm__annotate_init(struct arch *arch, char *cpuid __maybe_unused) +{ + struct arm_annotate *arm; + int err; + + if (arch->initialized) + return 0; + + arm = zalloc(sizeof(*arm)); + if (!arm) + return ENOMEM; + +#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 + + arch->initialized = true; + arch->priv = arm; + arch->associate_instruction_ops = arm__associate_instruction_ops; + arch->objdump.comment_char = ';'; + arch->objdump.skip_functions_char = '+'; + return 0; + +out_free_call: + regfree(&arm->call_insn); +out_free_arm: + free(arm); + return SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_REGEXP; +} |