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https://git.musl-libc.org/git/musl
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c72fc23843
with these changes, the members/types of mcontext_t and related stuff should closely match the glibc definitions. unlike glibc, however, the definitions here avoid using typedefs as much as possible and work directly with the underlying types, to minimize namespace pollution from signal.h in the default (_BSD_SOURCE) profile. this is a first step in improving compatibility with applications which poke at context/register information -- mainly debuggers, trace utilities, etc. additional definitions in ucontext.h and other headers may be needed later. if feature test macros are used to request a conforming namespace, mcontext_t is replaced with an opaque structure of the equivalent size and alignment; conforming programs cannot examine its contents anyway.
86 lines
1.9 KiB
C
86 lines
1.9 KiB
C
#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
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|| defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
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#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
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typedef struct sigcontext
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{
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unsigned sc_regmask, sc_status;
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unsigned long long sc_pc, sc_regs[32], sc_fpregs[32];
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unsigned sc_ownedfp, sc_fpc_csr, sc_fpc_eir, sc_used_math, sc_dsp;
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unsigned long long sc_mdhi, sc_mdlo;
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unsigned long sc_hi1, sc_lo1, sc_hi2, sc_lo2, sc_hi3, sc_lo3;
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} mcontext_t;
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#else
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typedef struct {
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unsigned __mc1[2];
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unsigned long long __mc2[65];
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unsigned __mc3[5];
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unsigned long long __mc4[2];
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unsigned __mc5[6];
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} mcontext_t;
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#endif
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typedef struct __ucontext {
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unsigned long uc_flags;
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struct __ucontext *uc_link;
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stack_t uc_stack;
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mcontext_t uc_mcontext;
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sigset_t uc_sigmask;
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unsigned long uc_regspace[128];
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} ucontext_t;
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#define SA_NOCLDSTOP 1
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#define SA_NOCLDWAIT 0x10000
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#define SA_SIGINFO 8
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#define SA_ONSTACK 0x08000000
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#define SA_RESTART 0x10000000
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#define SA_NODEFER 0x40000000
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#define SA_RESETHAND 0x80000000
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#define SA_RESTORER 0x04000000
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#undef SIG_BLOCK
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#undef SIG_UNBLOCK
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#undef SIG_SETMASK
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#define SIG_BLOCK 1
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#define SIG_UNBLOCK 2
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#define SIG_SETMASK 3
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#endif
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#define SIGHUP 1
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#define SIGINT 2
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#define SIGQUIT 3
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#define SIGILL 4
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#define SIGTRAP 5
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#define SIGABRT 6
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#define SIGIOT SIGABRT
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#define SIGSTKFLT 7
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#define SIGFPE 8
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#define SIGKILL 9
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#define SIGBUS 10
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#define SIGSEGV 11
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#define SIGSYS 12
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#define SIGPIPE 13
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#define SIGALRM 14
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#define SIGTERM 15
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#define SIGUSR1 16
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#define SIGUSR2 17
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#define SIGCHLD 18
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#define SIGPWR 19
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#define SIGWINCH 20
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#define SIGURG 21
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#define SIGIO 22
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#define SIGPOLL SIGIO
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#define SIGSTOP 23
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#define SIGTSTP 24
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#define SIGCONT 25
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#define SIGTTIN 26
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#define SIGTTOU 27
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#define SIGVTALRM 28
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#define SIGPROF 29
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#define SIGXCPU 30
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#define SIGXFSZ 31
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#define SIGUNUSED SIGSYS
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#define _NSIG 129
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