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4778cd4d27
This change fixes an issue with the tcflow() magic numbers that was causing bash to freeze up on Linux. While auditing termios polyfills, several other issues were identified with XNU/BSD compatibility. Out of an abundance of caution this change undefines as much surface area from libc/calls/struct/termios.h as possible, so that autoconf scripts are less likely to detect non-POSIX teletypewriter APIs that haven't been polyfilled by Cosmopolitan. This is a *breaking change* for your static archives in /opt/cosmos if you use the cosmocc toolchain. That's because this change disables the ioctl() undiamonding trick for code outside the monorepo, specifically because it'll lead to brittle ABI breakages like this. If you're using the cosmocc toolchain, you'll need to rebuild libraries like ncurses, readline, etc. Yes diamonds cause bloat. To work around that, consider using tcgetwinsize() instead of ioctl(TIOCGWINSZ) since it'll help you avoid pulling every single ioctl-related polyfill into the linkage. The cosmocc script was specifying -DNDEBUG for some reason. It's fixed.
21 lines
676 B
C
21 lines
676 B
C
#ifndef COSMOPOLITAN_LIBC_CALLS_STRUCT_TERMIOS_H_
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#define COSMOPOLITAN_LIBC_CALLS_STRUCT_TERMIOS_H_
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#define NCCS 20
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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struct termios { /* cosmo abi */
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uint32_t c_iflag; /* input modes */
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uint32_t c_oflag; /* output modes */
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uint32_t c_cflag; /* control modes */
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uint32_t c_lflag; /* local modes */
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uint8_t c_cc[NCCS]; /* code mappings */
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uint32_t _c_ispeed; /* use cfgetispeed() and cfsetispeed() */
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uint32_t _c_ospeed; /* use cfgetospeed() and cfsetospeed() */
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};
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_LIBC_CALLS_STRUCT_TERMIOS_H_ */
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