projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
| acc9bfb5 ACM |
2 | #include <sys/types.h> |
| 3 | #include <regex.h> | |
| 4 | ||
| 5 | struct arm_annotate { | |
| 6 | regex_t call_insn, | |
| 7 | jump_insn; | |
| 763d8960 | 8 | }; |
| acc9bfb5 ACM |
9 | |
| 10 | static struct ins_ops *arm__associate_instruction_ops(struct arch *arch, const char *name) | |
| 11 | { | |
| 12 | struct arm_annotate *arm = arch->priv; | |
| 13 | struct ins_ops *ops; | |
| 14 | regmatch_t match[2]; | |
| 15 | ||
| 16 | if (!regexec(&arm->call_insn, name, 2, match, 0)) | |
| 17 | ops = &call_ops; | |
| 18 | else if (!regexec(&arm->jump_insn, name, 2, match, 0)) | |
| 19 | ops = &jump_ops; | |
| 20 | else | |
| 21 | return NULL; | |
| 22 | ||
| 23 | arch__associate_ins_ops(arch, name, ops); | |
| 24 | return ops; | |
| 25 | } | |
| 26 | ||
| 27 | static int arm__annotate_init(struct arch *arch) | |
| 28 | { | |
| 29 | struct arm_annotate *arm; | |
| 30 | int err; | |
| 31 | ||
| 32 | if (arch->initialized) | |
| 33 | return 0; | |
| 34 | ||
| 35 | arm = zalloc(sizeof(*arm)); | |
| 36 | if (!arm) | |
| 37 | return -1; | |
| 38 | ||
| 39 | #define ARM_CONDS "(cc|cs|eq|ge|gt|hi|le|ls|lt|mi|ne|pl|vc|vs)" | |
| 40 | err = regcomp(&arm->call_insn, "^blx?" ARM_CONDS "?$", REG_EXTENDED); | |
| 41 | if (err) | |
| 42 | goto out_free_arm; | |
| 43 | err = regcomp(&arm->jump_insn, "^bx?" ARM_CONDS "?$", REG_EXTENDED); | |
| 44 | if (err) | |
| 45 | goto out_free_call; | |
| 46 | #undef ARM_CONDS | |
| 47 | ||
| 48 | arch->initialized = true; | |
| 49 | arch->priv = arm; | |
| 50 | arch->associate_instruction_ops = arm__associate_instruction_ops; | |
| 51 | arch->objdump.comment_char = ';'; | |
| 52 | arch->objdump.skip_functions_char = '+'; | |
| 53 | return 0; | |
| 54 | ||
| 55 | out_free_call: | |
| 56 | regfree(&arm->call_insn); | |
| 57 | out_free_arm: | |
| 58 | free(arm); | |
| 59 | return -1; | |
| 60 | } |