gprofng: fix build issues on musl

gprofng/ChangeLog
2022-09-14  Vladimir Mezentsev  <vladimir.mezentsev@oracle.com>

	PR gprofng/29477
	* configure.ac: Set __MUSL_LIBC.
	* configure: Rebuild.
	* common/config.h.in: Rebuild.
	* src/collector_module.h: Fix compiler errors because mmap64, open64,
	pwrite64 are macros and getcontext() is absent on musl.
	* libcollector/collector.c: Likewise.
	* libcollector/hwprofile.c: Likewise.
	* libcollector/iolib.c: Likewise.
	* libcollector/libcol_util.c: Likewise.
	* libcollector/linetrace.c: Likewise.
	* libcollector/memmgr.c: Likewise.
	* libcollector/profile.c: Likewise.
	* libcollector/unwind.c: Likewise.
	* libcollector/dispatcher.c: Likewise.
	* src/Experiment.cc: Likewise.
	* libcollector/collector.h: Use dlsym() because dlvsym() is not defined
	on musl.
	* libcollector/iotrace.c: Remove interposition of versioned functions.
	* libcollector/mmaptrace.c: Likewise.
	* libcollector/libcol_util.h: Fix -Wint-to-pointer-cast warnings.
	* libcollector/jprofile.c: Likewise.
	* libcollector/synctrace.c: Include "collector.h".
	* src/Print.cc: Use get_basename() because basename() is not defined
	on musl.
	* common/hwcdrv.c: Fix -Wformat= warnings.

3 files changed, 9 insertions, 7 deletions

diff --git a/gprofng/src/Experiment.cc b/gprofng/src/Experiment.cc
index c797724..98aae97 100644
--- a/gprofng/src/Experiment.cc
+++ b/gprofng/src/Experiment.cc
@@ -6466,7 +6466,7 @@ int
 Experiment::copy_file_to_archive (const char *name, const char *aname, int hide_msg)
 {
   errno = 0;
-  int fd_w = open64 (aname, O_WRONLY | O_CREAT | O_EXCL, 0644);
+  int fd_w = ::open64 (aname, O_WRONLY | O_CREAT | O_EXCL, 0644);
   if (fd_w == -1)
     {
       if (errno == EEXIST)
@@ -6484,7 +6484,7 @@ Experiment::copy_file_to_archive (const char *name, const char *aname, int hide_
       return 1;
     }
 
-  int fd_r = open64 (name, O_RDONLY);
+  int fd_r = ::open64 (name, O_RDONLY);
   if (fd_r == -1)
     {
       fprintf (stderr, GTXT ("er_archive: unable to open `%s': %s\n"),
diff --git a/gprofng/src/Print.cc b/gprofng/src/Print.cc
index d415d59..0393253 100644
--- a/gprofng/src/Print.cc
+++ b/gprofng/src/Print.cc
@@ -2209,14 +2209,14 @@ print_anno_file (char *name, const char *sel, const char *srcFile,
 	    {
 	      fitem = func->getDefSrc ();
 	      found = (func->line_first > 0)
-		      && strcmp (basename (srcFile),
-				 basename (fitem->get_name ())) == 0;
+		      && strcmp (get_basename (srcFile),
+				 get_basename (fitem->get_name ())) == 0;
 	    }
 	  else
 	    {
 	      Vec_loop (SourceFile*, sources, index, fitem)
 	      {
-		if (strcmp (basename (srcFile), basename (fitem->get_name ())) == 0)
+		if (strcmp (get_basename (srcFile), get_basename (fitem->get_name ())) == 0)
 		  {
 		    found = true;
 		    break;
diff --git a/gprofng/src/collector_module.h b/gprofng/src/collector_module.h
index f608dab..6cf53d5 100644
--- a/gprofng/src/collector_module.h
+++ b/gprofng/src/collector_module.h
@@ -25,6 +25,7 @@
 #include <stdarg.h>
 #include <stdio.h>
 #include <unistd.h>
+#include <ucontext.h>
 #include <dirent.h>
 
 #include "gp-defs.h"
@@ -55,6 +56,7 @@ typedef struct CollectorUtilFuncs
   int (*fprintf)(FILE *stream, const char *format, ...);
   void (*free)(void *ptr);
   int (*fstat)(int fd, struct stat *buf);
+  int (*getcontext)(ucontext_t *ucp);
   int (*getcpuid)();
   char *(*getcwd)(char *buf, size_t size);
   char *(*getenv)(const char *name);
@@ -66,7 +68,7 @@ typedef struct CollectorUtilFuncs
   int (*mkdir)();
   time_t (*mktime)(struct tm *timeptr);
   void *(*mmap)(void *, size_t, int, int, int, off_t);
-  void *(*mmap64)();
+  void *(*mmap64_)();
   int (*munmap)();
   int (*open)(const char *, int, ...);
   int (*open_bare)(const char *, int, ...);
@@ -75,7 +77,7 @@ typedef struct CollectorUtilFuncs
   FILE *(*popen)(const char *command, const char *mode);
   int (*putenv)(char *string);
   ssize_t (*pwrite)();
-  ssize_t (*pwrite64)();
+  ssize_t (*pwrite64_)();
   ssize_t (*read)();
   int (*setenv)(const char *name, const char *value, int overwrite);
   int (*sigfillset)(sigset_t *set);