On 8/6/2024 12:48 PM, Yang Jihong wrote:Okay, will change in next version.
commit 3796eba7c137 move #else block of #ifdef HAVE_DWARF_GETLOCATIONS_SUPPORT
code from dwarf-aux.c to dwarf-aux.h, in which die_get_var_range() used ENOTSUP
macro, but dwarf-aux.h was not self-contained and did not include file errno.h.
As a result, the build failed when HAVE_DWARF_GETLOCATIONS_SUPPORT macro was not
defined, and the error log is as follows:
In file included from util/disasm.h:8,
from util/annotate.h:16,
from builtin-top.c:23:
util/dwarf-aux.h: In function 'die_get_var_range':
util/dwarf-aux.h:184:10: error: 'ENOTSUP' undeclared (first use in this function)
184 | return -ENOTSUP;
| ^~~~~~~
util/dwarf-aux.h:184:10: note: each undeclared identifier is reported only once for each function it appears
Fixes: 3796eba7c137 ("perf dwarf-aux: Move #else block of #ifdef HAVE_DWARF_GETLOCATIONS_SUPPORT code to the header file")
Signed-off-by: Yang Jihong <yangjihong@xxxxxxxxxxxxx>
---
tools/perf/util/dwarf-aux.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/tools/perf/util/dwarf-aux.h b/tools/perf/util/dwarf-aux.h
index 24446412b869..d2903894538e 100644
--- a/tools/perf/util/dwarf-aux.h
+++ b/tools/perf/util/dwarf-aux.h
@@ -5,6 +5,7 @@
* dwarf-aux.h : libdw auxiliary interfaces
*/
+#include <errno.h>
#include <dwarf.h>
Please alphabet ordering. With it:
Reviewed-by: Leo Yan <leo.yan@xxxxxxx>