From cb4d27f48efca1903ec13d71c5f3b4e42009821c Mon Sep 17 00:00:00 2001 From: Ed Maste Date: Fri, 10 Dec 2021 15:11:45 -0500 Subject: [PATCH] readelf: add Go Build ID ELF note support Reviewed by: markj MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D33379 (cherry picked from commit ca457394fccfc7d712cd9cc6a66e574767a0a32b) --- contrib/elftoolchain/readelf/readelf.c | 24 +++++++++++++++++++++++- 1 file changed, 23 insertions(+), 1 deletion(-) diff --git a/contrib/elftoolchain/readelf/readelf.c b/contrib/elftoolchain/readelf/readelf.c index f33519112eb..987a2ffb128 100644 --- a/contrib/elftoolchain/readelf/readelf.c +++ b/contrib/elftoolchain/readelf/readelf.c @@ -373,8 +373,9 @@ static const char *note_type(const char *note_name, unsigned int et, unsigned int nt); static const char *note_type_freebsd(unsigned int nt); static const char *note_type_freebsd_core(unsigned int nt); -static const char *note_type_linux_core(unsigned int nt); +static const char *note_type_go(unsigned int nt); static const char *note_type_gnu(unsigned int nt); +static const char *note_type_linux_core(unsigned int nt); static const char *note_type_netbsd(unsigned int nt); static const char *note_type_openbsd(unsigned int nt); static const char *note_type_unknown(unsigned int nt); @@ -1151,6 +1152,8 @@ note_type(const char *name, unsigned int et, unsigned int nt) return note_type_freebsd(nt); else if (strcmp(name, "GNU") == 0 && et != ET_CORE) return note_type_gnu(nt); + else if (strcmp(name, "Go") == 0 && et != ET_CORE) + return note_type_go(nt); else if (strcmp(name, "NetBSD") == 0 && et != ET_CORE) return note_type_netbsd(nt); else if (strcmp(name, "OpenBSD") == 0 && et != ET_CORE) @@ -1243,6 +1246,15 @@ note_type_gnu(unsigned int nt) } } +static const char * +note_type_go(unsigned int nt) +{ + switch (nt) { + case 4: return "elfGoBuildIDTag"; + default: return (note_type_unknown(nt)); + } +} + static const char * note_type_netbsd(unsigned int nt) { @@ -3814,6 +3826,16 @@ dump_notes_data(struct readelf *re, const char *name, uint32_t type, dump_flags(note_feature_ctl_flags, ubuf[0]); return; } + } else if (strcmp(name, "Go") == 0) { + if (type == 4) { + printf(" Build ID: "); + for (i = 0; i < sz; i++) { + printf(isprint(buf[i]) ? "%c" : "<%02x>", + buf[i]); + } + printf("\n"); + return; + } } else if (strcmp(name, "GNU") == 0) { switch (type) { case NT_GNU_PROPERTY_TYPE_0: -- 2.45.0