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14e192e5ba
This is similar to the --ftrace (c function call trace) flag, except
it's less noisy since it only logs system calls to stderr. Having this
flag is valuable because (1) system call tracing tells us a lot about
the behavior of complex programs and (2) it's usually very hard to get
system call tracing on various operating systems, e.g. strace, ktrace,
dtruss, truss, nttrace, etc. Especially on Apple platforms where even
with the special boot trick, debuggers still aren't guaranteed to work.
make -j8 o//examples
o//examples/hello.com --strace
This is enabled by default in MODE=, MODE=opt, and MODE=dbg. In MODE=dbg
extra information will be printed.
make -j8 MODE=dbg o/dbg/examples
o/dbg/examples/hello.com --strace |& less
This change also changes:
- Rename IsText() → _istext()
- Rename IsUtf8() → _isutf8()
- Fix madvise() on Windows NT
- Fix empty string case of inet_ntop()
- vfork() wrapper now saves and restores errno
- Update xsigaction() to yoink syscall support
54 lines
1.7 KiB
C
54 lines
1.7 KiB
C
#ifndef COSMOPOLITAN_LIBC_ZIPOS_ZIPOS_H_
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#define COSMOPOLITAN_LIBC_ZIPOS_ZIPOS_H_
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#include "libc/calls/calls.h"
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#include "libc/calls/strace.internal.h"
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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#if DEBUGSYS
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#define ZTRACE(FMT, ...) kprintf("ZIP: " FMT "\n", ##__VA_ARGS__)
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#else
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#define ZTRACE(FMT, ...) (void)0
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#endif
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struct stat;
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struct iovec;
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struct Zipos {
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uint8_t *map;
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uint8_t *cdir;
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};
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struct ZiposUri {
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const char *path;
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size_t len;
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};
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struct ZiposHandle {
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uint8_t *mem; /* uncompressed file memory */
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size_t size; /* byte length of file memory */
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size_t pos; /* read/write byte offset state */
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uint32_t cfile; /* central directory entry rva */
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int64_t handle;
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uint8_t *freeme;
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};
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int __zipos_close(int) hidden;
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struct Zipos *__zipos_get(void) pureconst hidden;
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ssize_t __zipos_parseuri(const char *, struct ZiposUri *) hidden;
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ssize_t __zipos_find(struct Zipos *, const struct ZiposUri *);
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int __zipos_open(const struct ZiposUri *, unsigned, int) hidden;
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int __zipos_stat(const struct ZiposUri *, struct stat *) hidden;
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int __zipos_fstat(const struct ZiposHandle *, struct stat *) hidden;
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int __zipos_stat_impl(struct Zipos *, size_t, struct stat *) hidden;
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ssize_t __zipos_read(struct ZiposHandle *, const struct iovec *, size_t,
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ssize_t) hidden;
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ssize_t __zipos_write(struct ZiposHandle *, const struct iovec *, size_t,
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ssize_t) hidden;
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int64_t __zipos_lseek(struct ZiposHandle *, int64_t, unsigned) hidden;
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int __zipos_fcntl(int, int, uintptr_t) hidden;
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int __zipos_notat(int, const char *) hidden;
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_LIBC_ZIPOS_ZIPOS_H_ */
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