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0c630d95b5
The build/bootstrap/ar.com program is now tinier. This change reduces its size from 140kb to 53kb. Nothing was traded away. Cosmopolitan Ar performance is now 2x better than llvm-ar largely thanks to using the copy_file_range() system call. This change homebrews a new allocation API that addresses the shortcomings of the C standard library design. Using these new balloc() and reballoc() functions I managed to reduce memory consumption so much that Cosmpolitan Ar should now use roughly 100x fewer bytes of peak resident memory compared to llvm-ar. Correct behavior with better compatibility has been assured. Binary output is now pretty much bit-identical to llvm-ar, as of this change. This can and should be the living proof we need to show that a better world is possible for software.
22 lines
449 B
C
22 lines
449 B
C
#ifndef COSMOPOLITAN_LIBC_AR_H_
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#define COSMOPOLITAN_LIBC_AR_H_
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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#define ARMAG "!<arch>\n"
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#define SARMAG 8
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#define ARFMAG "`\n"
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struct ar_hdr {
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char ar_name[16];
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char ar_date[12];
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char ar_uid[6];
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char ar_gid[6];
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char ar_mode[8];
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char ar_size[10];
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char ar_fmag[2];
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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_AR_H_ */
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