adds wrapping to all clib symbols

bare-metal-bsp/libwrap/libwrap.mk

@@ -50,7 +50,7 @@ LIBWRAP_SYMS := \
 	isatty \
 	times \
 	sbrk _sbrk\
-	_exit \
+	exit _exit \
 	puts _puts\
 	printf \
 	sprintf
@@ -60,6 +60,7 @@ LIBWRAP := libwrap.a
 LINK_DEPS += $(LIBWRAP)
 
 LDFLAGS += $(foreach s,$(LIBWRAP_SYMS),-Wl,--wrap=$(s))
+#LDFLAGS += $(foreach s,$(LIBWRAP_SYMS),-Wl,--wrap=_$(s))
 LDFLAGS += -L. -Wl,--start-group -lwrap -lc -Wl,--end-group
 
 CLEAN_OBJS += $(LIBWRAP_OBJS)

bare-metal-bsp/libwrap/sys/_exit.c

@@ -2,12 +2,13 @@
 
 #include <unistd.h>
 #include "platform.h"
+#include "weak_under_alias.h"
 
 extern volatile uint32_t tohost;
 extern volatile uint32_t fromhost;
 void write_hex(int fd, uint32_t hex);
 
-void __wrap__exit(int code)
+void __wrap_exit(int code)
 {
 //volatile uint32_t* leds = (uint32_t*) (GPIO_BASE_ADDR + GPIO_OUT_OFFSET);
   const char message[] = "\nProgam has exited with code:";
@@ -20,3 +21,4 @@ void __wrap__exit(int code)
   write(STDERR_FILENO, "\x04", 1);
   for (;;);
 }
+weak_under_alias(exit);

bare-metal-bsp/libwrap/sys/execve.c

@@ -2,8 +2,10 @@
 
 #include <errno.h>
 #include "stub.h"
+#include "weak_under_alias.h"
 
 int __wrap_execve(const char* name, char* const argv[], char* const env[])
 {
   return _stub(ENOMEM);
 }
+weak_under_alias(execve);

bare-metal-bsp/libwrap/sys/getpid.c

@@ -1,6 +1,8 @@
 /* See LICENSE of license details. */
+#include "weak_under_alias.h"
 
 int __wrap_getpid(void)
 {
   return 1;
 }
+weak_under_alias(getpid);

bare-metal-bsp/libwrap/sys/isatty.c

@@ -1,6 +1,7 @@
 /* See LICENSE of license details. */
 
 #include <unistd.h>
+#include "weak_under_alias.h"
 
 int __wrap_isatty(int fd)
 {
@@ -9,3 +10,4 @@ int __wrap_isatty(int fd)
 
   return 0;
 }
+weak_under_alias(isatty);

bare-metal-bsp/libwrap/sys/kill.c

@@ -2,8 +2,10 @@
 
 #include <errno.h>
 #include "stub.h"
+#include "weak_under_alias.h"
 
 int __wrap_kill(int pid, int sig)
 {
   return _stub(EINVAL);
 }
+weak_under_alias(kill);

bare-metal-bsp/libwrap/sys/link.c

@@ -2,8 +2,10 @@
 
 #include <errno.h>
 #include "stub.h"
+#include "weak_under_alias.h"
 
 int __wrap_link(const char *old_name, const char *new_name)
 {
   return _stub(EMLINK);
 }
+weak_under_alias(link);

bare-metal-bsp/libwrap/sys/open.c

@@ -2,8 +2,10 @@
 
 #include <errno.h>
 #include "stub.h"
+#include "weak_under_alias.h"
 
 int __wrap_open(const char* name, int flags, int mode)
 {
   return _stub(ENOENT);
 }
+weak_under_alias(open);

bare-metal-bsp/libwrap/sys/openat.c

@@ -2,8 +2,10 @@
 
 #include <errno.h>
 #include "stub.h"
+#include "weak_under_alias.h"
 
 int __wrap_openat(int dirfd, const char* name, int flags, int mode)
 {
   return _stub(ENOENT);
 }
+weak_under_alias(openat);

bare-metal-bsp/libwrap/sys/stat.c

@@ -3,8 +3,10 @@
 #include <errno.h>
 #include <sys/stat.h>
 #include "stub.h"
+#include "weak_under_alias.h"
 
 int __wrap_stat(const char* file, struct stat* st)
 {
   return _stub(EACCES);
 }
+weak_under_alias(stat);

bare-metal-bsp/libwrap/sys/times.c

@@ -3,8 +3,10 @@
 #include <errno.h>
 #include <sys/times.h>
 #include "stub.h"
+#include "weak_under_alias.h"
 
 clock_t __wrap_times(struct tms* buf)
 {
   return _stub(EACCES);
 }
+weak_under_alias(times);

bare-metal-bsp/libwrap/sys/unlink.c

@@ -2,8 +2,10 @@
 
 #include <errno.h>
 #include "stub.h"
+#include "weak_under_alias.h"
 
 int __wrap_unlink(const char* name)
 {
   return _stub(ENOENT);
 }
+weak_under_alias(unlink);