adds wrapping to all clib symbols
This commit is contained in:
parent
acf20a4818
commit
41f204e304
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@ -50,7 +50,7 @@ LIBWRAP_SYMS := \
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isatty \
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isatty \
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times \
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times \
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sbrk _sbrk\
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sbrk _sbrk\
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_exit \
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exit _exit \
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puts _puts\
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puts _puts\
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printf \
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printf \
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sprintf
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sprintf
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@ -60,6 +60,7 @@ LIBWRAP := libwrap.a
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LINK_DEPS += $(LIBWRAP)
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LINK_DEPS += $(LIBWRAP)
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LDFLAGS += $(foreach s,$(LIBWRAP_SYMS),-Wl,--wrap=$(s))
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LDFLAGS += $(foreach s,$(LIBWRAP_SYMS),-Wl,--wrap=$(s))
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#LDFLAGS += $(foreach s,$(LIBWRAP_SYMS),-Wl,--wrap=_$(s))
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LDFLAGS += -L. -Wl,--start-group -lwrap -lc -Wl,--end-group
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LDFLAGS += -L. -Wl,--start-group -lwrap -lc -Wl,--end-group
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CLEAN_OBJS += $(LIBWRAP_OBJS)
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CLEAN_OBJS += $(LIBWRAP_OBJS)
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@ -2,12 +2,13 @@
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#include <unistd.h>
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#include <unistd.h>
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#include "platform.h"
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#include "platform.h"
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#include "weak_under_alias.h"
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extern volatile uint32_t tohost;
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extern volatile uint32_t tohost;
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extern volatile uint32_t fromhost;
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extern volatile uint32_t fromhost;
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void write_hex(int fd, uint32_t hex);
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void write_hex(int fd, uint32_t hex);
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void __wrap__exit(int code)
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void __wrap_exit(int code)
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{
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{
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//volatile uint32_t* leds = (uint32_t*) (GPIO_BASE_ADDR + GPIO_OUT_OFFSET);
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//volatile uint32_t* leds = (uint32_t*) (GPIO_BASE_ADDR + GPIO_OUT_OFFSET);
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const char message[] = "\nProgam has exited with code:";
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const char message[] = "\nProgam has exited with code:";
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@ -20,3 +21,4 @@ void __wrap__exit(int code)
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write(STDERR_FILENO, "\x04", 1);
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write(STDERR_FILENO, "\x04", 1);
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for (;;);
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for (;;);
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}
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}
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weak_under_alias(exit);
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@ -2,8 +2,10 @@
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#include <errno.h>
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#include <errno.h>
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#include "stub.h"
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#include "stub.h"
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#include "weak_under_alias.h"
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int __wrap_execve(const char* name, char* const argv[], char* const env[])
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int __wrap_execve(const char* name, char* const argv[], char* const env[])
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{
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{
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return _stub(ENOMEM);
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return _stub(ENOMEM);
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}
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}
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weak_under_alias(execve);
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@ -1,6 +1,8 @@
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/* See LICENSE of license details. */
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/* See LICENSE of license details. */
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#include "weak_under_alias.h"
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int __wrap_getpid(void)
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int __wrap_getpid(void)
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{
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{
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return 1;
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return 1;
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}
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}
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weak_under_alias(getpid);
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@ -1,6 +1,7 @@
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/* See LICENSE of license details. */
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/* See LICENSE of license details. */
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#include <unistd.h>
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#include <unistd.h>
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#include "weak_under_alias.h"
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int __wrap_isatty(int fd)
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int __wrap_isatty(int fd)
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{
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{
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@ -9,3 +10,4 @@ int __wrap_isatty(int fd)
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return 0;
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return 0;
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}
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}
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weak_under_alias(isatty);
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@ -2,8 +2,10 @@
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#include <errno.h>
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#include <errno.h>
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#include "stub.h"
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#include "stub.h"
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#include "weak_under_alias.h"
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int __wrap_kill(int pid, int sig)
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int __wrap_kill(int pid, int sig)
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{
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{
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return _stub(EINVAL);
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return _stub(EINVAL);
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}
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}
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weak_under_alias(kill);
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@ -2,8 +2,10 @@
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#include <errno.h>
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#include <errno.h>
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#include "stub.h"
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#include "stub.h"
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#include "weak_under_alias.h"
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int __wrap_link(const char *old_name, const char *new_name)
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int __wrap_link(const char *old_name, const char *new_name)
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{
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{
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return _stub(EMLINK);
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return _stub(EMLINK);
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}
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}
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weak_under_alias(link);
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@ -2,8 +2,10 @@
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#include <errno.h>
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#include <errno.h>
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#include "stub.h"
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#include "stub.h"
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#include "weak_under_alias.h"
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int __wrap_open(const char* name, int flags, int mode)
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int __wrap_open(const char* name, int flags, int mode)
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{
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{
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return _stub(ENOENT);
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return _stub(ENOENT);
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}
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}
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weak_under_alias(open);
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@ -2,8 +2,10 @@
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#include <errno.h>
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#include <errno.h>
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#include "stub.h"
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#include "stub.h"
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#include "weak_under_alias.h"
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int __wrap_openat(int dirfd, const char* name, int flags, int mode)
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int __wrap_openat(int dirfd, const char* name, int flags, int mode)
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{
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{
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return _stub(ENOENT);
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return _stub(ENOENT);
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}
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}
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weak_under_alias(openat);
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@ -3,8 +3,10 @@
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#include <errno.h>
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#include <errno.h>
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#include <sys/stat.h>
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#include <sys/stat.h>
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#include "stub.h"
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#include "stub.h"
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#include "weak_under_alias.h"
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int __wrap_stat(const char* file, struct stat* st)
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int __wrap_stat(const char* file, struct stat* st)
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{
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{
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return _stub(EACCES);
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return _stub(EACCES);
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}
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}
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weak_under_alias(stat);
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@ -3,8 +3,10 @@
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#include <errno.h>
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#include <errno.h>
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#include <sys/times.h>
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#include <sys/times.h>
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#include "stub.h"
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#include "stub.h"
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#include "weak_under_alias.h"
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clock_t __wrap_times(struct tms* buf)
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clock_t __wrap_times(struct tms* buf)
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{
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{
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return _stub(EACCES);
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return _stub(EACCES);
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}
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}
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weak_under_alias(times);
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@ -2,8 +2,10 @@
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#include <errno.h>
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#include <errno.h>
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#include "stub.h"
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#include "stub.h"
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#include "weak_under_alias.h"
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int __wrap_unlink(const char* name)
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int __wrap_unlink(const char* name)
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{
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{
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return _stub(ENOENT);
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return _stub(ENOENT);
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}
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}
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weak_under_alias(unlink);
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