https://sourceware.org/bugzilla/show_bug.cgi?id=19150
Bug ID: 19150
Summary: readelf should decode more notes
Product: binutils
Version: 2.26 (HEAD)
Status: NEW
Severity: enhancement
Priority: P2
Component: binutils
Assignee: unassigned at sourceware dot org
Reporter: ppluzhnikov at google dot com
Target Milestone: ---
>From https://sourceware.org/ml/binutils/2015-10/msg00145.html
Current trunk readelf produces:
build/binutils/readelf -n /tmp/core.136505
Displaying notes found at file offset 0x00000200 with length 0x000009b8:
Owner Data size Description
CORE 0x00000150 NT_PRSTATUS (prstatus structure)
CORE 0x00000088 NT_PRPSINFO (prpsinfo structure)
CORE 0x00000080 NT_SIGINFO (siginfo_t data)
CORE 0x00000130 NT_AUXV (auxiliary vector)
CORE 0x00000064 NT_FILE (mapped files)
Page size: 4096
Start End Page Offset
0x0000000000400000 0x00000000004bf000 0x0000000000000000
/tmp/a.out.static
0x00000000006be000 0x00000000006c1000 0x00000000000000be
/tmp/a.out.static
CORE 0x00000200 NT_FPREGSET (floating point registers)
LINUX 0x00000340 NT_X86_XSTATE (x86 XSAVE extended state)
Compare this to:
eu-readelf -n /tmp/core.136505
Note segment of 2488 bytes at offset 0x200:
Owner Data size Type
CORE 336 PRSTATUS
info.si_signo: 6, info.si_code: 0, info.si_errno: 0, cursig: 6
sigpend: <>
sighold: <>
pid: 136505, ppid: 120345, pgrp: 136505, sid: 120345
utime: 0.000000, stime: 0.000000, cutime: 0.000000, cstime: 0.000000
orig_rax: 234, fpvalid: 1
r15: 0 r14: 4200304
r13: 4200160 r12: 0
rbp: 0x00007ffeb1ec7da0 rbx: 4194992
r11: 582 r10: 8
r9: 4 r8: 11
rax: 0 rcx: -1
rdx: 6 rsi: 136505
rdi: 136505 rip: 0x0000000000444749
rflags: 0x0000000000000246 rsp: 0x00007ffeb1ec7c68
fs.base: 0x0000000001e84880 gs.base: 0x0000000000000000
cs: 0x0033 ss: 0x002b ds: 0x0000 es: 0x0000 fs: 0x0063 gs: 0x0000
CORE 136 PRPSINFO
state: 0, sname: R, zomb: 0, nice: 0, flag: 0x0000000000406600
uid: 74925, gid: 5000, pid: 136505, ppid: 120345, pgrp: 136505
sid: 120345
fname: a.out.static, psargs: /tmp/a.out.static
CORE 128 SIGINFO
si_signo: 6, si_errno: 0, si_code: -6
CORE 304 AUXV
SYSINFO_EHDR: 0x7ffeb1fb3000
HWCAP: 0xbfebfbff <fpu vme de pse tsc msr pae mce cx8 apic sep
mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht
tm pbe>
PAGESZ: 4096
CLKTCK: 100
PHDR: 0x400040
PHENT: 56
PHNUM: 6
BASE: 0
FLAGS: 0
ENTRY: 0x400f4e
UID: 74925
EUID: 74925
GID: 5000
EGID: 5000
SECURE: 0
RANDOM: 0x7ffeb1ec8129
EXECFN: 0x7ffeb1ec8fe6
PLATFORM: 0x7ffeb1ec8139
NULL
CORE 100 FILE
2 files:
00400000-004bf000 00000000 782336 /tmp/a.out.static
006be000-006c1000 000be000 12288 /tmp/a.out.static
CORE 512 FPREGSET
xmm0: 0x000000000000ff000000ff0000000000
xmm1: 0x2f2f2f2f2f2f2f2f2f2f2f2f2f2f2f2f
xmm2: 0x00ff0000000000000000000000000000
xmm3: 0x00000000000000000000000000000000
xmm4: 0x00000000000000000000000000000000
xmm5: 0x00ff00000000000000000000ff000000
xmm6: 0x00000000000000000000000000000000
xmm7: 0x00000000000000000000000000000000
xmm8: 0x00000000000000000000000000000000
xmm9: 0x000000ff000000000000000000000000
xmm10: 0x0000000000000000ff00000000000000
xmm11: 0x00000000000000000000000000000000
xmm12: 0x00000000000000000000000000000000
xmm13: 0x00000000000000000000000000000000
xmm14: 0x00000000000000000000000000000000
xmm15: 0x00000000000000000000000000000000
st0: 0x00000000000000000000 st1: 0x00000000000000000000
st2: 0x00000000000000000000 st3: 0x00000000000000000000
st4: 0x00000000000000000000 st5: 0x00000000000000000000
st6: 0x00000000000000000000 st7: 0x00000000000000000000
mxcsr: 0x0000ffff00001f80
fcw: 0x037f fsw: 0x0000
LINUX 832 X86_XSTATE
It seems to me that if readelf -n decodes any notes at all (which it
does for at least NT_FILE, NT_GNU_ABI_TAG, NT_GNU_BUILD_ID and
NT_GNU_GOLD_VERSION), then it should decode the others as well.
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