[binutils-gdb] libsframe: provide new access API for mangled RA bit

[binutils-gdb] libsframe: provide new access API for mangled RA bit

[Indu Bhagat]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=9c4b163cb546f0627a4d3106d2750db37d6aed50

commit 9c4b163cb546f0627a4d3106d2750db37d6aed50
Author: Indu Bhagat <indu.bhagat@oracle.com>
Date:   Fri Dec 16 22:01:57 2022 -0800

    libsframe: provide new access API for mangled RA bit
    
    include/ChangeLog:
    
            * sframe-api.h (sframe_fre_get_ra_mangled_p): New declaration.
    
    ChangeLog:
    
            * libsframe/sframe.c (sframe_get_fre_ra_mangled_p): New
            definition.
            (sframe_fre_get_ra_mangled_p): New static function.

Diff:
---
 include/sframe-api.h |  7 +++++++
 libsframe/sframe.c   | 18 ++++++++++++++++++
 2 files changed, 25 insertions(+)

diff --git a/include/sframe-api.h b/include/sframe-api.h
index c9db39eaaf0..bd1833558a4 100644
--- a/include/sframe-api.h
+++ b/include/sframe-api.h
@@ -21,6 +21,7 @@
 #define	_SFRAME_API_H
 
 #include <sframe.h>
+#include <stdbool.h>
 
 #ifdef	__cplusplus
 extern "C"
@@ -184,6 +185,12 @@ extern int32_t
 sframe_fre_get_ra_offset (sframe_decoder_ctx *dctx,
 			  sframe_frame_row_entry *fre, int *errp);
 
+/* Get whether the RA is mangled.  */
+
+extern bool
+sframe_fre_get_ra_mangled_p (sframe_decoder_ctx *dctx,
+			     sframe_frame_row_entry *fre, int *errp);
+
 /* The SFrame Encoder.  */
 
 /* Create an encoder context with the given SFrame format version VER, FLAGS
diff --git a/libsframe/sframe.c b/libsframe/sframe.c
index b17d3234236..b8fde2f04f8 100644
--- a/libsframe/sframe.c
+++ b/libsframe/sframe.c
@@ -124,6 +124,12 @@ sframe_fre_get_offset_size (unsigned char fre_info)
   return SFRAME_V1_FRE_OFFSET_SIZE (fre_info);
 }
 
+static bool
+sframe_get_fre_ra_mangled_p (unsigned char fre_info)
+{
+  return SFRAME_V1_FRE_MANGLED_RA_P (fre_info);
+}
+
 /* Access functions for info from function descriptor entry.  */
 
 static unsigned int
@@ -640,6 +646,18 @@ sframe_fre_get_ra_offset (sframe_decoder_ctx *dctx,
   return sframe_get_fre_offset (fre, SFRAME_FRE_RA_OFFSET_IDX, errp);
 }
 
+/* Get whether the RA is mangled.  */
+
+bool
+sframe_fre_get_ra_mangled_p (sframe_decoder_ctx *dctx ATTRIBUTE_UNUSED,
+			     sframe_frame_row_entry *fre, int *errp)
+{
+  if (fre == NULL || !sframe_fre_sanity_check_p (fre))
+    return sframe_set_errno (errp, SFRAME_ERR_FRE_INVAL);
+
+  return sframe_get_fre_ra_mangled_p (fre->fre_info);
+}
+
 static int
 sframe_frame_row_entry_copy (sframe_frame_row_entry *dst, sframe_frame_row_entry *src)
 {