Contributors: 3
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Arnaldo Carvalho de Melo |
281 |
96.90% |
5 |
71.43% |
| Jiri Olsa |
8 |
2.76% |
1 |
14.29% |
| Greg Kroah-Hartman |
1 |
0.34% |
1 |
14.29% |
| Total |
290 |
|
7 |
|
// 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;
}