mirror of
git://git.musl-libc.org/musl
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150747b41e
when _GNU_SOURCE is defined, which is always the case when compiling
c++ with gcc, these macros for the the indices in gregset_t are
exposed and likely to clash with applications. by using enum constants
rather than macros defined with integer literals, we can make the
clash slightly less likely to break software. the macros are still
defined in case anything checks for them with #ifdef, but they're
defined to expand to themselves so that non-file-scope (e.g.
namespaced) identifiers by the same names still work.
for the sake of avoiding mistakes, the changes were generated with sed
via the command:
sed -i -e 's/#define *\(REG_[A-Z_0-9]\{1,\}\) *\([0-9]\{1,\}\)'\
'/enum { \1 = \2 };\n#define \1 \1/' \
arch/i386/bits/signal.h arch/x86_64/bits/signal.h arch/x32/bits/signal.h
154 lines
3.4 KiB
C
154 lines
3.4 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(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
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#define MINSIGSTKSZ 2048
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#define SIGSTKSZ 8192
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#endif
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#ifdef _GNU_SOURCE
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enum { REG_R8 = 0 };
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#define REG_R8 REG_R8
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enum { REG_R9 = 1 };
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#define REG_R9 REG_R9
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enum { REG_R10 = 2 };
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#define REG_R10 REG_R10
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enum { REG_R11 = 3 };
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#define REG_R11 REG_R11
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enum { REG_R12 = 4 };
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#define REG_R12 REG_R12
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enum { REG_R13 = 5 };
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#define REG_R13 REG_R13
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enum { REG_R14 = 6 };
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#define REG_R14 REG_R14
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enum { REG_R15 = 7 };
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#define REG_R15 REG_R15
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enum { REG_RDI = 8 };
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#define REG_RDI REG_RDI
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enum { REG_RSI = 9 };
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#define REG_RSI REG_RSI
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enum { REG_RBP = 10 };
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#define REG_RBP REG_RBP
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enum { REG_RBX = 11 };
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#define REG_RBX REG_RBX
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enum { REG_RDX = 12 };
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#define REG_RDX REG_RDX
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enum { REG_RAX = 13 };
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#define REG_RAX REG_RAX
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enum { REG_RCX = 14 };
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#define REG_RCX REG_RCX
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enum { REG_RSP = 15 };
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#define REG_RSP REG_RSP
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enum { REG_RIP = 16 };
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#define REG_RIP REG_RIP
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enum { REG_EFL = 17 };
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#define REG_EFL REG_EFL
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enum { REG_CSGSFS = 18 };
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#define REG_CSGSFS REG_CSGSFS
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enum { REG_ERR = 19 };
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#define REG_ERR REG_ERR
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enum { REG_TRAPNO = 20 };
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#define REG_TRAPNO REG_TRAPNO
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enum { REG_OLDMASK = 21 };
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#define REG_OLDMASK REG_OLDMASK
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enum { REG_CR2 = 22 };
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#define REG_CR2 REG_CR2
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#endif
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#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
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typedef long long greg_t, gregset_t[23];
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typedef struct _fpstate {
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unsigned short cwd, swd, ftw, fop;
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unsigned long long rip, rdp;
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unsigned mxcsr, mxcr_mask;
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struct {
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unsigned short significand[4], exponent, padding[3];
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} _st[8];
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struct {
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unsigned element[4];
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} _xmm[16];
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unsigned padding[24];
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} *fpregset_t;
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struct sigcontext {
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unsigned long r8, r9, r10, r11, r12, r13, r14, r15;
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unsigned long rdi, rsi, rbp, rbx, rdx, rax, rcx, rsp, rip, eflags;
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unsigned short cs, gs, fs, __pad0;
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unsigned long err, trapno, oldmask, cr2;
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struct _fpstate *fpstate;
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unsigned long __reserved1[8];
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};
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typedef struct {
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gregset_t gregs;
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fpregset_t fpregs;
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unsigned long long __reserved1[8];
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} mcontext_t;
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#else
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typedef struct {
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unsigned long __space[32];
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} mcontext_t;
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#endif
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struct sigaltstack {
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void *ss_sp;
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int ss_flags;
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size_t ss_size;
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};
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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 __fpregs_mem[64];
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} ucontext_t;
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#define SA_NOCLDSTOP 1
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#define SA_NOCLDWAIT 2
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#define SA_SIGINFO 4
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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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#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 SIGBUS 7
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#define SIGFPE 8
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#define SIGKILL 9
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#define SIGUSR1 10
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#define SIGSEGV 11
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#define SIGUSR2 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 SIGSTKFLT 16
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#define SIGCHLD 17
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#define SIGCONT 18
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#define SIGSTOP 19
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#define SIGTSTP 20
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#define SIGTTIN 21
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#define SIGTTOU 22
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#define SIGURG 23
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#define SIGXCPU 24
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#define SIGXFSZ 25
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#define SIGVTALRM 26
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#define SIGPROF 27
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#define SIGWINCH 28
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#define SIGIO 29
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#define SIGPOLL 29
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#define SIGPWR 30
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#define SIGSYS 31
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#define SIGUNUSED SIGSYS
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#define _NSIG 65
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