Following up on Tom's suggestion I am checking in a patch to replace the various

bfd_xxx_set macros with static inline functions, so that we can avoid compile time
warnings about comma expressions with unused values.

	* bfd-in.h (bfd_set_section_vma): Delete.
	(bfd_set_section_alignment): Delete.
	(bfd_set_section_userdata): Delete.
	(bfd_set_cacheable): Delete.
	* bfd.c (bfd_set_cacheable): New static inline function.
	* section.c (bfd_set_section_userdata): Likewise.
	(bfd_set_section_vma): Likewise.
	(bfd_set_section_alignment): Likewise.
	* bfd-in2.h: Regenerate.

1 files changed, 35 insertions, 6 deletions

diff --git a/bfd/bfd-in2.h b/bfd/bfd-in2.h
index 71996db..b5aeb40 100644
--- a/bfd/bfd-in2.h
+++ b/bfd/bfd-in2.h
@@ -299,9 +299,6 @@ typedef struct bfd_section *sec_ptr;
 
 #define bfd_is_com_section(ptr) (((ptr)->flags & SEC_IS_COMMON) != 0)
 
-#define bfd_set_section_vma(bfd, ptr, val) (((ptr)->vma = (ptr)->lma = (val)), ((ptr)->user_set_vma = TRUE), TRUE)
-#define bfd_set_section_alignment(bfd, ptr, val) (((ptr)->alignment_power = (val)),TRUE)
-#define bfd_set_section_userdata(bfd, ptr, val) (((ptr)->userdata = (val)),TRUE)
 /* Find the address one past the end of SEC.  */
 #define bfd_get_section_limit(bfd, sec) \
   (((bfd)->direction != write_direction && (sec)->rawsize != 0	\
@@ -524,8 +521,6 @@ extern void warn_deprecated (const char *, const char *, int, const char *);
 
 #define bfd_get_symbol_leading_char(abfd) ((abfd)->xvec->symbol_leading_char)
 
-#define bfd_set_cacheable(abfd,bool) (((abfd)->cacheable = bool), TRUE)
-
 extern bfd_boolean bfd_cache_close
   (bfd *abfd);
 /* NB: This declaration should match the autogenerated one in libbfd.h.  */
@@ -1029,7 +1024,7 @@ bfd *bfd_openr (const char *filename, const char *target);
 
 bfd *bfd_fdopenr (const char *filename, const char *target, int fd);
 
-bfd *bfd_openstreamr (const char *, const char *, void *);
+bfd *bfd_openstreamr (const char * filename, const char * target, void * stream);
 
 bfd *bfd_openr_iovec (const char *filename, const char *target,
     void *(*open_func) (struct bfd *nbfd,
@@ -1596,6 +1591,32 @@ struct relax_table {
   int size;
 };
 
+/* Note: the following are provided as inline functions rather than macros
+   because not all callers use the return value.  A macro implementation
+   would use a comma expression, eg: "((ptr)->foo = val, TRUE)" and some
+   compilers will complain about comma expressions that have no effect.  */
+static inline bfd_boolean
+bfd_set_section_userdata (bfd * abfd ATTRIBUTE_UNUSED, asection * ptr, void * val)
+{
+  ptr->userdata = val;
+  return TRUE;
+}
+
+static inline bfd_boolean
+bfd_set_section_vma (bfd * abfd ATTRIBUTE_UNUSED, asection * ptr, bfd_vma val)
+{
+  ptr->vma = ptr->lma = val;
+  ptr->user_set_vma = TRUE;
+  return TRUE;
+}
+
+static inline bfd_boolean
+bfd_set_section_alignment (bfd * abfd ATTRIBUTE_UNUSED, asection * ptr, unsigned int val)
+{
+  ptr->alignment_power = val;
+  return TRUE;
+}
+
 /* These sections are global, and are managed by BFD.  The application
    and target back end are not permitted to change the values in
    these sections.  */
@@ -6415,6 +6436,14 @@ struct bfd
   unsigned int selective_search : 1;
 };
 
+/* See note beside bfd_set_section_userdata.  */
+static inline bfd_boolean
+bfd_set_cacheable (bfd * abfd, bfd_boolean val)
+{
+  abfd->cacheable = val;
+  return TRUE;
+}
+
 typedef enum bfd_error
 {
   bfd_error_no_error = 0,