cosmopolitan/libc/calls/struct/sigaction.h

#ifndef COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGACTION_H_
#define COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGACTION_H_
#include "libc/calls/struct/siginfo.h"
#include "libc/calls/struct/sigset.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_

typedef void (*sighandler_t)(int);
typedef void (*sigaction_f)(int, struct siginfo *, void *);

struct sigaction { /* cosmo abi */
  union {
    sighandler_t sa_handler;
    sigaction_f sa_sigaction;
  };
  uint64_t sa_flags;
  void (*sa_restorer)(void);
  struct sigset sa_mask;
};

sighandler_t signal(int, sighandler_t);
int sigaction(int, const struct sigaction *, struct sigaction *);

COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGACTION_H_ */
Initial import 2020-06-15 14:18:57 +00:00			`#ifndef COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGACTION_H_`
			`#define COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGACTION_H_`
Reduce build graph by another eight percent 2022-08-13 20:11:56 +00:00			`#include "libc/calls/struct/siginfo.h"`
Initial import 2020-06-15 14:18:57 +00:00			`#include "libc/calls/struct/sigset.h"`
			`#if !(__ASSEMBLER__ + __LINKER__ + 0)`
Reduce build graph by another eight percent 2022-08-13 20:11:56 +00:00			`COSMOPOLITAN_C_START_`

			`typedef void (*sighandler_t)(int);`
Make improvements - Fix unused local variable errors - Remove yoinks from sigaction() header - Add nox87 and aarch64 to github actions - Fix cosmocc -fportcosmo in linking mode - It's now possible to build `make m=llvm o/llvm/libc` 2023-07-10 11:29:46 +00:00			`typedef void (sigaction_f)(int, struct siginfo , void *);`
Initial import 2020-06-15 14:18:57 +00:00
			`struct sigaction { /* cosmo abi */`
			`union {`
			`sighandler_t sa_handler;`
			`sigaction_f sa_sigaction;`
			`};`
			`uint64_t sa_flags;`
			`void (*sa_restorer)(void);`
			`struct sigset sa_mask;`
Improve memory safety This commit makes numerous refinements to cosmopolitan memory handling. The default stack size has been reduced from 2mb to 128kb. A new macro is now provided so you can easily reconfigure the stack size to be any value you want. Work around the breaking change by adding to your main: STATIC_STACK_SIZE(0x00200000); // 2mb stack If you're not sure how much stack you need, then you can use: STATIC_YOINK("stack_usage_logging"); After which you can `sort -nr o/$MODE/stack.log`. Based on the unit test suite, nothing in the Cosmopolitan repository (except for Python) needs a stack size greater than 30kb. There are also new macros for detecting the size and address of the stack at runtime, e.g. GetStackAddr(). We also now support sigaltstack() so if you want to see nice looking crash reports whenever a stack overflow happens, you can put this in main(): ShowCrashReports(); Under `make MODE=dbg` and `make MODE=asan` the unit testing framework will now automatically print backtraces of memory allocations when things like memory leaks happen. Bugs are now fixed in ASAN global variable overrun detection. The memtrack and asan runtimes also handle edge cases now. The new tools helped to identify a few memory leaks, which are fixed by this change. This change should fix an issue reported in #288 with ARG_MAX limits. Fixing this doubled the performance of MKDEPS.COM and AR.COM yet again. 2021-10-14 00:27:13 +00:00			`};`
Initial import 2020-06-15 14:18:57 +00:00
Improve memory safety This commit makes numerous refinements to cosmopolitan memory handling. The default stack size has been reduced from 2mb to 128kb. A new macro is now provided so you can easily reconfigure the stack size to be any value you want. Work around the breaking change by adding to your main: STATIC_STACK_SIZE(0x00200000); // 2mb stack If you're not sure how much stack you need, then you can use: STATIC_YOINK("stack_usage_logging"); After which you can `sort -nr o/$MODE/stack.log`. Based on the unit test suite, nothing in the Cosmopolitan repository (except for Python) needs a stack size greater than 30kb. There are also new macros for detecting the size and address of the stack at runtime, e.g. GetStackAddr(). We also now support sigaltstack() so if you want to see nice looking crash reports whenever a stack overflow happens, you can put this in main(): ShowCrashReports(); Under `make MODE=dbg` and `make MODE=asan` the unit testing framework will now automatically print backtraces of memory allocations when things like memory leaks happen. Bugs are now fixed in ASAN global variable overrun detection. The memtrack and asan runtimes also handle edge cases now. The new tools helped to identify a few memory leaks, which are fixed by this change. This change should fix an issue reported in #288 with ARG_MAX limits. Fixing this doubled the performance of MKDEPS.COM and AR.COM yet again. 2021-10-14 00:27:13 +00:00			`sighandler_t signal(int, sighandler_t);`
			`int sigaction(int, const struct sigaction , struct sigaction );`

			`COSMOPOLITAN_C_END_`
Initial import 2020-06-15 14:18:57 +00:00			`#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */`
			`#endif /* COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGACTION_H_ */`