mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-27 02:25:20 +07:00
acc9bfb5fa
By using arch->init() to set up some regular expressions to associate ins_ops to ARM instructions, ditching that old table that has instructions not present on ARM. Take advantage of having an arch->init() to hide more arm specific stuff from the common code, like the objdump details. The regular expressions comes from a patch written by Kim Phillips. Reviewed-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Chris Riyder <chris.ryder@arm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kim Phillips <kim.phillips@arm.com> Cc: Markus Trippelsdorf <markus@trippelsdorf.de> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Taeung Song <treeze.taeung@gmail.com> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-77m7lufz9ajjimkrebtg5ead@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
60 lines
1.2 KiB
C
60 lines
1.2 KiB
C
#include <sys/types.h>
|
|
#include <regex.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)
|
|
{
|
|
struct arm_annotate *arm;
|
|
int err;
|
|
|
|
if (arch->initialized)
|
|
return 0;
|
|
|
|
arm = zalloc(sizeof(*arm));
|
|
if (!arm)
|
|
return -1;
|
|
|
|
#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 -1;
|
|
}
|