From 86b9105a36e70cf48433124a5e3fb2af4f1bce68 Mon Sep 17 00:00:00 2001 From: Simon Marchi Date: Fri, 25 Feb 2022 13:19:23 -0500 Subject: [PATCH] binutils/readelf: handle NT_AMDGPU_METADATA note name Handle the NT_AMDGPU_METADATA note, which is described here: https://llvm.org/docs/AMDGPUUsage.html#code-object-v3-note-records As of this patch, just print out the name, not the contents, which is in the msgpack format. binutils/ChangeLog: * readelf.c (get_amdgpu_elf_note_type): New. (process_note): Handle "AMDGPU" notes. include/ChangeLog: * elf/amdgcn.h (NT_AMDGPU_METADATA): New. Change-Id: Id2dba2e2aeaa55ef7464fb35aee9c7d5f96ddb23 --- binutils/readelf.c | 20 ++++++++++++++++++++ include/elf/amdgpu.h | 4 ++++ 2 files changed, 24 insertions(+) diff --git a/binutils/readelf.c b/binutils/readelf.c index 00b5e546c1e..91515bdf0fa 100644 --- a/binutils/readelf.c +++ b/binutils/readelf.c @@ -19724,6 +19724,22 @@ decode_x86_compat_2_isa (unsigned int bitmask) } } +static const char * +get_amdgpu_elf_note_type (unsigned int e_type) +{ + switch (e_type) + { + case NT_AMDGPU_METADATA: + return _("NT_AMDGPU_METADATA (code object metadata)"); + default: + { + static char buf[64]; + snprintf (buf, sizeof (buf), _("Unknown note type: (0x%08x)"), e_type); + return buf; + } + } +} + static void decode_x86_isa (unsigned int bitmask) { @@ -21313,6 +21329,10 @@ process_note (Elf_Internal_Note * pnote, /* GNU-specific object file notes. */ nt = get_gnu_elf_note_type (pnote->type); + else if (startswith (pnote->namedata, "AMDGPU")) + /* AMDGPU-specific object file notes. */ + nt = get_amdgpu_elf_note_type (pnote->type); + else if (startswith (pnote->namedata, "FreeBSD")) /* FreeBSD-specific core file notes. */ nt = get_freebsd_elfcore_note_type (filedata, pnote->type); diff --git a/include/elf/amdgpu.h b/include/elf/amdgpu.h index 005064fc264..e3c90dc74e8 100644 --- a/include/elf/amdgpu.h +++ b/include/elf/amdgpu.h @@ -87,4 +87,8 @@ #define EF_AMDGPU_FEATURE_SRAMECC_OFF_V4 0x800 #define EF_AMDGPU_FEATURE_SRAMECC_ON_V4 0xc00 +/* Notes. */ + +#define NT_AMDGPU_METADATA 32 + #endif /* _ELF_AMDGPU_H */ -- 2.47.2