diff options
Diffstat (limited to 'man/man3/makecontext.3')
| -rw-r--r-- | man/man3/makecontext.3 | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/man/man3/makecontext.3 b/man/man3/makecontext.3 index 1af4828ad5..f213cc3158 100644 --- a/man/man3/makecontext.3 +++ b/man/man3/makecontext.3 @@ -179,22 +179,20 @@ main: exiting \& .\" SRC BEGIN (makecontext.c) .EX +#include <err.h> #include <stdio.h> #include <stdlib.h> #include <ucontext.h> \& static ucontext_t uctx_main, uctx_func1, uctx_func2; \& -#define handle_error(msg) \[rs] - do { perror(msg); exit(EXIT_FAILURE); } while (0) -\& static void func1(void) { printf("%s: started\[rs]n", __func__); printf("%s: swapcontext(&uctx_func1, &uctx_func2)\[rs]n", __func__); if (swapcontext(&uctx_func1, &uctx_func2) == \-1) - handle_error("swapcontext"); + err(EXIT_FAILURE, "swapcontext"); printf("%s: returning\[rs]n", __func__); } \& @@ -204,7 +202,7 @@ func2(void) printf("%s: started\[rs]n", __func__); printf("%s: swapcontext(&uctx_func2, &uctx_func1)\[rs]n", __func__); if (swapcontext(&uctx_func2, &uctx_func1) == \-1) - handle_error("swapcontext"); + err(EXIT_FAILURE, "swapcontext"); printf("%s: returning\[rs]n", __func__); } \& @@ -215,14 +213,14 @@ main(int argc, char *argv[]) char func2_stack[16384]; \& if (getcontext(&uctx_func1) == \-1) - handle_error("getcontext"); + err(EXIT_FAILURE, "getcontext"); uctx_func1.uc_stack.ss_sp = func1_stack; uctx_func1.uc_stack.ss_size = sizeof(func1_stack); uctx_func1.uc_link = &uctx_main; makecontext(&uctx_func1, func1, 0); \& if (getcontext(&uctx_func2) == \-1) - handle_error("getcontext"); + err(EXIT_FAILURE, "getcontext"); uctx_func2.uc_stack.ss_sp = func2_stack; uctx_func2.uc_stack.ss_size = sizeof(func2_stack); /* Successor context is f1(), unless argc > 1 */ @@ -231,7 +229,7 @@ main(int argc, char *argv[]) \& printf("%s: swapcontext(&uctx_main, &uctx_func2)\[rs]n", __func__); if (swapcontext(&uctx_main, &uctx_func2) == \-1) - handle_error("swapcontext"); + err(EXIT_FAILURE, "swapcontext"); \& printf("%s: exiting\[rs]n", __func__); exit(EXIT_SUCCESS); |