Author: emaste Date: Wed Jan 30 20:44:51 2019 New Revision: 343592 URL: https://svnweb.freebsd.org/changeset/base/343592
Log: readelf: decode flag bits in DT_FLAGS/DT_FLAGS_1 Decode d_val when the tag is DT_FLAGS or DT_FLAGS_1 based on the information at: https://docs.oracle.com/cd/E23824_01/html/819-0690/chapter6-42444.html PR: 232983 Submitted by: Bora Ozarslan [email protected] Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D18784 Modified: head/contrib/elftoolchain/readelf/readelf.c Modified: head/contrib/elftoolchain/readelf/readelf.c ============================================================================== --- head/contrib/elftoolchain/readelf/readelf.c Wed Jan 30 20:23:16 2019 (r343591) +++ head/contrib/elftoolchain/readelf/readelf.c Wed Jan 30 20:44:51 2019 (r343592) @@ -293,6 +293,8 @@ static void dump_dwarf_ranges_foreach(struct readelf * static void dump_dwarf_str(struct readelf *re); static void dump_eflags(struct readelf *re, uint64_t e_flags); static void dump_elf(struct readelf *re); +static void dump_dt_flags_val(uint64_t d_val); +static void dump_dt_flags_1_val(uint64_t d_val); static void dump_dyn_val(struct readelf *re, GElf_Dyn *dyn, uint32_t stab); static void dump_dynamic(struct readelf *re); static void dump_liblist(struct readelf *re); @@ -2804,9 +2806,147 @@ dump_dyn_val(struct readelf *re, GElf_Dyn *dyn, uint32 case DT_GNU_PRELINKED: printf(" %s\n", timestamp(dyn->d_un.d_val)); break; + case DT_FLAGS: + dump_dt_flags_val(dyn->d_un.d_val); + break; + case DT_FLAGS_1: + dump_dt_flags_1_val(dyn->d_un.d_val); + break; default: printf("\n"); } +} + +static void +dump_dt_flags_val(uint64_t d_val) +{ + if (d_val & 0x1) { + d_val ^= 0x1; + printf(" ORIGIN"); + } + if (d_val & 0x2) { + d_val ^= 0x2; + printf(" SYMBOLIC"); + } + if (d_val & 0x4) { + d_val ^= 0x4; + printf(" TEXTREL"); + } + if (d_val & 0x8) { + d_val ^= 0x8; + printf(" BIND_NOW"); + } + if (d_val & 0x10) { + d_val ^= 0x10; + printf(" STATIC_TLS"); + } + if (d_val) + printf(" %lx", d_val); + printf("\n"); +} + +static void +dump_dt_flags_1_val(uint64_t d_val) +{ + if (d_val & 0x1) { + d_val ^= 0x1; + printf(" NOW"); + } + if (d_val & 0x2) { + d_val ^= 0x2; + printf(" GLOBAL"); + } + if (d_val & 0x4) { + d_val ^= 0x4; + printf(" GROUP"); + } + if (d_val & 0x8) { + d_val ^= 0x8; + printf(" NODELETE"); + } + if (d_val & 0x10) { + d_val ^= 0x10; + printf(" LOADFLTR"); + } + if (d_val & 0x20) { + d_val ^= 0x20; + printf(" INITFIRST"); + } + if (d_val & 0x40) { + d_val ^= 0x40; + printf(" NOOPEN"); + } + if (d_val & 0x80) { + d_val ^= 0x80; + printf(" ORIGIN"); + } + if (d_val & 0x100) { + d_val ^= 0x100; + printf(" DIRECT"); + } + if (d_val & 0x400) { + d_val ^= 0x400; + printf(" INTERPOSE"); + } + if (d_val & 0x800) { + d_val ^= 0x800; + printf(" NODEFLIB"); + } + if (d_val & 0x1000) { + d_val ^= 0x1000; + printf(" NODUMP"); + } + if (d_val & 0x2000) { + d_val ^= 0x2000; + printf(" CONFALT"); + } + if (d_val & 0x4000) { + d_val ^= 0x4000; + printf(" ENDFILTEE"); + } + if (d_val & 0x8000) { + d_val ^= 0x8000; + printf(" DISPRELDNE"); + } + if (d_val & 0x10000) { + d_val ^= 0x10000; + printf(" DISPRELPND"); + } + if (d_val & 0x20000) { + d_val ^= 0x20000; + printf(" NODIRECT"); + } + if (d_val & 0x40000) { + d_val ^= 0x40000; + printf(" IGNMULDEF"); + } + if (d_val & 0x80000) { + d_val ^= 0x80000; + printf(" NOKSYMS"); + } + if (d_val & 0x100000) { + d_val ^= 0x100000; + printf(" NOHDR"); + } + if (d_val & 0x200000) { + d_val ^= 0x200000; + printf(" EDITED"); + } + if (d_val & 0x400000) { + d_val ^= 0x400000; + printf(" NORELOC"); + } + if (d_val & 0x800000) { + d_val ^= 0x800000; + printf(" SYMINTPOSE"); + } + if (d_val & 0x1000000) { + d_val ^= 0x1000000; + printf(" GLOBAUDIT"); + } + if (d_val) + printf(" %lx", d_val); + printf("\n"); } static void _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "[email protected]"
