)]}'
{
  "commit": "b9b7bbb466efc2955c80204250eedeecfacbecd7",
  "tree": "2d743a811b3058b28d916b7622b00540310be464",
  "parents": [
    "97d71f2366fdbe506bcfad0c0abd3914ba334ada"
  ],
  "author": {
    "name": "Indu Bhagat",
    "email": "indu.bhagat@oracle.com",
    "time": "Wed Jul 09 23:13:58 2025 +0200"
  },
  "committer": {
    "name": "Jose E. Marchesi",
    "email": "jose.marchesi@oracle.com",
    "time": "Sat Jul 12 11:33:25 2025 +0200"
  },
  "message": "ld/aarch64elf: add support for DT_AARCH64_MEMTAG_STACK dynamic tag\n\nAdd new command line option -z memtag-stack for aarch64 elf.  This\noption instructs the linker to generate the necessary dynamic tag\nDT_AARCH64_MEMTAG_STACK, which the dynamic loader can then use to\nprotect the stack memory with PROT_MTE.  Linker issues an\n\u0027unrecognized option\u0027 error when -z memtag-stack is specified for\nnon-aarch64 based emulations.\n\nreadelf displays the dynamic tag when present:\n\n$ readelf -d \u003cexectutable\u003e\nDynamic section at offset 0xfdd8 contains XX entries:\nTag        Type                         Name/Value\n0x0000000000000001 (NEEDED)             Shared library: [libc.so.6]\n0x000000000000000c (INIT)               0x400520\n0x000000000000000d (FINI)               0x400b64\n0x0000000000000019 (INIT_ARRAY)         0x41fdc8\n...                 ...                 ...\n0x000000007000000c (AARCH64_MEMTAG_STACK) 0x1\n...                 ...                 ...\n\nChangeLog:\n\n        * bfd/elfnn-aarch64.c (elfNN_aarch64_late_size_sections): Emit\n\tDT_AARCH64_MEMTAG_STACK dynamic tag.\n        * bfd/elfxx-aarch64.h (struct aarch64_memtag_opts): Add new\n\tmember for tracking whether stack access uses MTE insns.\n        * binutils/readelf.c (get_aarch64_dynamic_type): Handle\n\tDT_AARCH64_MEMTAG_STACK.\n        * ld/emultempl/aarch64elf.em: Add new command line option.\n        * ld/ld.texi: Add documentation for -z memtag-stack.\n        * ld/testsuite/ld-aarch64/aarch64-elf.exp: Add new test.\n        * ld/testsuite/ld-aarch64/dt-memtag-stack.d: New test.\n\ninclude/ChangeLog:\n\n        * elf/aarch64.h (DT_AARCH64_MEMTAG_STACK): New definition.\n",
  "tree_diff": [
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}