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Implement raise () in libc

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The core functionality (i.e., the equivalent of `kill (getpid (), sig);`)
was already there in the implementation of `abort ()`. Now, it got
factored out to `raise ()` so that others (most importantly,
`__aeabi_ldiv0`) can call and link to it as well.

Also, removed `LIBC_UNREACHABLE_STUB_FOR` macro, as it is not used anymore.

JerryScript-DCO-1.0-Signed-off-by: Akos Kiss akiss@inf.u-szeged.hu
This commit is contained in:
Akos Kiss
2016-04-12 14:59:19 +02:00
parent 7b10f912a9
commit a7f015ef47
3 changed files with 20 additions and 21 deletions
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jerry-libc/jerry-libc-defs.h
-15
View File
@@ -54,19 +54,4 @@ libc_fatal (const char *msg,
} while (0)
#endif /* !LIBC_NDEBUG */
/**
* Stubs declaration
*/
/**
* Unreachable stubs for routines that are never called,
* but referenced from third-party libraries.
*/
#define LIBC_UNREACHABLE_STUB_FOR(...) \
extern __VA_ARGS__; \
__attr_used___ __VA_ARGS__ \
{ \
LIBC_UNREACHABLE (); \
}
#endif /* !DEFS_H */
jerry-libc/target/darwin/jerry-libc-target.c
+10 -3
View File
@@ -31,8 +31,6 @@
#include "jerry-libc-defs.h"
LIBC_UNREACHABLE_STUB_FOR (int raise (int sig_no __attr_unused___))
extern long int syscall_0 (long int syscall_no);
extern long int syscall_1 (long int syscall_no, long int arg1);
extern long int syscall_2 (long int syscall_no, long int arg1, long int arg2);
@@ -92,7 +90,7 @@ abort (void)
syscall_1 (SYS_close, (long int) stdout);
syscall_1 (SYS_close, (long int) stderr);
syscall_2 (SYS_kill, syscall_0 (SYS_getpid), SIGABRT);
raise (SIGABRT);
while (true)
{
@@ -100,6 +98,15 @@ abort (void)
}
} /* abort */
/**
* Send a signal to the current process.
*/
int __attr_used___
raise (int sig)
{
return (int) syscall_2 (SYS_kill, syscall_0 (SYS_getpid), sig);
} /* raise */
/**
* fopen
*
jerry-libc/target/linux/jerry-libc-target.c
+10 -3
View File
@@ -31,8 +31,6 @@
#include "jerry-libc-defs.h"
LIBC_UNREACHABLE_STUB_FOR (int raise (int sig_no __attr_unused___))
extern long int syscall_0 (long int syscall_no);
extern long int syscall_1 (long int syscall_no, long int arg1);
extern long int syscall_2 (long int syscall_no, long int arg1, long int arg2);
@@ -92,7 +90,7 @@ abort (void)
syscall_1 (__NR_close, (long int) stdout);
syscall_1 (__NR_close, (long int) stderr);
syscall_2 (__NR_kill, syscall_0 (__NR_getpid), SIGABRT);
raise (SIGABRT);
while (true)
{
@@ -100,6 +98,15 @@ abort (void)
}
} /* abort */
/**
* Send a signal to the current process.
*/
int __attr_used___
raise (int sig)
{
return (int) syscall_2 (__NR_kill, syscall_0 (__NR_getpid), sig);
} /* raise */
/**
* fopen
*