[all-commits] [llvm/llvm-project] cc6b86: [sanitizer] Intercept glibc's argp_parse()

[Ilya Leoshkevich via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: cc6b86e175da1cf4fa7de98ee99bb9e55e16ac7d
      https://github.com/llvm/llvm-project/commit/cc6b86e175da1cf4fa7de98ee99bb9e55e16ac7d
  Author: Ilya Leoshkevich <iii at linux.ibm.com>
  Date:   2023-03-08 (Wed, 08 Mar 2023)

  Changed paths:
    M compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors.inc
    M compiler-rt/lib/sanitizer_common/sanitizer_platform_interceptors.h
    A compiler-rt/test/sanitizer_common/TestCases/Linux/argp_parse.c

  Log Message:
  -----------
  [sanitizer] Intercept glibc's argp_parse()

Glibc provides the argp_parse() function for parsing command line
arguments [1].

Indicate that argc/argv are read from and arg_index is written to.
Strictly speaking, we also need to indicate that argp is read from,
but this would require describing its layout, and most people use a
static initializer there, so it's not worth the effort.

[1] https://www.gnu.org/software/libc/manual/html_node/Argp.html

Reviewed By: vitalybuka

Differential Revision: https://reviews.llvm.org/D143330