| 1 | /* Reentrant versions of syscalls need to support signal/raise. |
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| 2 | These implementations just call the usual system calls. */ |
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| 3 | |
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| 4 | #include <reent.h> |
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| 5 | #include <signal.h> |
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| 6 | #include <unistd.h> |
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| 7 | #include <_syslist.h> |
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| 8 | |
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| 9 | /* Some targets provides their own versions of these functions. Those |
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| 10 | targets should define REENTRANT_SYSCALLS_PROVIDED in TARGET_CFLAGS. */ |
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| 11 | |
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| 12 | #ifdef _REENT_ONLY |
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| 13 | #ifndef REENTRANT_SYSCALLS_PROVIDED |
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| 14 | #define REENTRANT_SYSCALLS_PROVIDED |
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| 15 | #endif |
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| 16 | #endif |
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| 17 | |
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| 18 | #ifdef REENTRANT_SYSCALLS_PROVIDED |
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| 19 | |
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| 20 | int _dummy_link_syscalls = 1; |
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| 21 | |
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| 22 | #else |
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| 23 | |
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| 24 | /* We use the errno variable used by the system dependent layer. */ |
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| 25 | #undef errno |
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| 26 | extern int errno; |
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| 27 | |
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| 28 | /* |
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| 29 | FUNCTION |
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| 30 | <<_kill_r>>---Reentrant version of kill |
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| 31 | |
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| 32 | INDEX |
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| 33 | _kill_r |
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| 34 | |
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| 35 | SYNOPSIS |
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| 36 | #include <reent.h> |
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| 37 | int _kill_r(struct _reent *<[ptr]>, int <[pid]>, int <[sig]>); |
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| 38 | |
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| 39 | DESCRIPTION |
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| 40 | This is a reentrant version of <<kill>>. It |
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| 41 | takes a pointer to the global data block, which holds |
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| 42 | <<errno>>. |
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| 43 | */ |
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| 44 | |
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| 45 | int |
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| 46 | _kill_r (struct _reent *ptr, |
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| 47 | int pid, |
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| 48 | int sig) |
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| 49 | { |
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| 50 | int ret; |
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| 51 | |
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| 52 | errno = 0; |
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| 53 | if ((ret = _kill (pid, sig)) == -1 && errno != 0) |
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| 54 | ptr->_errno = errno; |
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| 55 | return ret; |
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| 56 | } |
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| 57 | |
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| 58 | /* |
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| 59 | NEWPAGE |
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| 60 | FUNCTION |
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| 61 | <<_getpid_r>>---Reentrant version of getpid |
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| 62 | |
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| 63 | INDEX |
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| 64 | _getpid_r |
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| 65 | |
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| 66 | SYNOPSIS |
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| 67 | #include <reent.h> |
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| 68 | int _getpid_r(struct _reent *<[ptr]>); |
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| 69 | |
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| 70 | DESCRIPTION |
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| 71 | This is a reentrant version of <<getpid>>. It |
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| 72 | takes a pointer to the global data block, which holds |
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| 73 | <<errno>>. |
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| 74 | |
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| 75 | We never need <<errno>>, of course, but for consistency we |
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| 76 | still must have the reentrant pointer argument. |
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| 77 | */ |
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| 78 | |
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| 79 | int |
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| 80 | _getpid_r (struct _reent *ptr) |
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| 81 | { |
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| 82 | int ret; |
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| 83 | ret = _getpid (); |
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| 84 | return ret; |
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| 85 | } |
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| 86 | |
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| 87 | #endif /* ! defined (REENTRANT_SYSCALLS_PROVIDED) */ |
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