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a678c13b8f
Adapted from the Linux x86 functions. Not thoroughly tested, but manual testing as well as glibc tests look fine, and manual -lpthread testing also looks fine (within the given bounds for a new stack to be used with makecontext). This has also been in use in Debian since 2013.
30 lines
590 B
Plaintext
30 lines
590 B
Plaintext
#include <stddef.h>
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#include <signal.h>
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#include <sys/ucontext.h>
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--
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SIG_BLOCK
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SIG_SETMASK
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#define ucontext(member) offsetof (ucontext_t, member)
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#define mcontext(member) ucontext (uc_mcontext.member)
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#define mreg(reg) mcontext (gregs[REG_##reg])
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oLINK ucontext (uc_link)
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oSS_SP ucontext (uc_stack.ss_sp)
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oSS_SIZE ucontext (uc_stack.ss_size)
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oGS mreg (GS)
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oFS mreg (FS)
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oEDI mreg (EDI)
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oESI mreg (ESI)
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oEBP mreg (EBP)
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oESP mreg (ESP)
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oEBX mreg (EBX)
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oEDX mreg (EDX)
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oECX mreg (ECX)
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oEAX mreg (EAX)
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oEIP mreg (EIP)
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oFPREGS mcontext (fpregs)
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oSIGMASK ucontext (uc_sigmask)
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