A standalone utility that:

• Does not link against libstrace (avoids UI/runtime dependencies)
• Uses a generated header asinfo_syscalls.h built from src/linux/<arch>/syscallent.h
• Provides three modes:
  • --to-names NR...: Convert syscall numbers to names
  • --to-numbers NAME...: Convert syscall names to numbers
  • --list: List all syscalls (format: NUMBER NAME)

Build Integration

• src/Makefile.am:

  • Adds asinfo to bin_PROGRAMS
  • Generates asinfo_syscalls.h from syscallent.h at build time
  • Links asinfo standalone (no libstrace dependency)
  • Adds build rule dependencies

• Makefile.am:

  • Adds doc/asinfo.1 to man_MANS for installation

Documentation

• doc/asinfo.1: Manual page describing usage, options, and exit codes

Testing

Four new test cases in tests/:

• asinfo.test: Basic roundtrip test (name → number → name)
• asinfo-multi.test: Multiple argument handling
• asinfo-errors.test: Error case validation (unknown names/numbers)
• asinfo-list.test: Verification that --list includes expected syscalls

All tests pass successfully.

Packaging

• debian/strace.install: Installs build/src/asinfo to /usr/bin
• debian/strace.manpages: Installs build/doc/asinfo.1 to man pages

Usage Examples

# List all syscalls
$ asinfo --list | head -5
0 read
1 write
2 open
3 close
4 stat

# Convert name to number
$ asinfo --to-numbers read
0

# Convert number to name
$ asinfo --to-names 0
read

# Multiple conversions
$ asinfo --to-numbers read write open
0
1
2

$ asinfo --to-names 0 1 2
read
write
open

Technical Details

Syscall Table Generation

The asinfo_syscalls.h header is auto-generated at build time by parsing src/linux/<arch>/syscallent.h:

static const char *asinfo_syscall_names[] = {
    [0] = "read",
    [1] = "write",
    // ... etc
};
static const unsigned int asinfo_syscall_count = ...;