diff options
Diffstat (limited to 'binutils/readelf.c')
| -rw-r--r-- | binutils/readelf.c | 143 |
1 files changed, 69 insertions, 74 deletions
diff --git a/binutils/readelf.c b/binutils/readelf.c index 7deac04..fe23d45 100644 --- a/binutils/readelf.c +++ b/binutils/readelf.c @@ -2271,6 +2271,73 @@ get_machine_name (unsigned e_machine) } static void +decode_ARC_machine_flags (unsigned e_flags, unsigned e_machine, char buf[]) +{ + /* ARC has two machine types EM_ARC_COMPACT and EM_ARC_COMPACT2. Some + other compilers don't a specific architecture type in the e_flags, and + instead use EM_ARC_COMPACT for old ARC600, ARC601, and ARC700 + architectures, and switch to EM_ARC_COMPACT2 for newer ARCEM and ARCHS + architectures. + + Th GNU tools follows this use of EM_ARC_COMPACT and EM_ARC_COMPACT2, + but also sets a specific architecture type in the e_flags field. + + However, when decoding the flags we don't worry if we see an + unexpected pairing, for example EM_ARC_COMPACT machine type, with + ARCEM architecture type. */ + + switch (e_flags & EF_ARC_MACH_MSK) + { + /* We only expect these to occur for EM_ARC_COMPACT2. */ + case EF_ARC_CPU_ARCV2EM: + strcat (buf, ", ARC EM"); + break; + case EF_ARC_CPU_ARCV2HS: + strcat (buf, ", ARC HS"); + break; + + /* We only expect these to occur for EM_ARC_COMPACT. */ + case E_ARC_MACH_ARC600: + strcat (buf, ", ARC600"); + break; + case E_ARC_MACH_ARC601: + strcat (buf, ", ARC601"); + break; + case E_ARC_MACH_ARC700: + strcat (buf, ", ARC700"); + break; + + /* The only times we should end up here are (a) A corrupt ELF, (b) A + new ELF with new architecture being read by an old version of + readelf, or (c) An ELF built with non-GNU compiler that does not + set the architecture in the e_flags. */ + default: + if (e_machine == EM_ARC_COMPACT) + strcat (buf, ", Unknown ARCompact"); + else + strcat (buf, ", Unknown ARC"); + break; + } + + switch (e_flags & EF_ARC_OSABI_MSK) + { + case E_ARC_OSABI_ORIG: + strcat (buf, ", (ABI:legacy)"); + break; + case E_ARC_OSABI_V2: + strcat (buf, ", (ABI:v2)"); + break; + /* Only upstream 3.9+ kernels will support ARCv2 ISA. */ + case E_ARC_OSABI_V3: + strcat (buf, ", v3 no-legacy-syscalls ABI"); + break; + default: + strcat (buf, ", unrecognised ARC OSABI flag"); + break; + } +} + +static void decode_ARM_machine_flags (unsigned e_flags, char buf[]) { unsigned eabi; @@ -2768,81 +2835,9 @@ get_machine_flags (unsigned e_flags, unsigned e_machine) break; case EM_ARC_COMPACT2: - switch (e_flags & EF_ARC_MACH_MSK) - { - case EF_ARC_CPU_ARCV2EM: - strcat (buf, ", ARC EM"); - break; - case EF_ARC_CPU_ARCV2HS: - strcat (buf, ", ARC HS"); - break; - case EF_ARC_CPU_GENERIC: - strcat (buf, ", ARC generic"); - break; - case E_ARC_MACH_ARC600: - strcat (buf, ", ARC600"); - break; - case E_ARC_MACH_ARC601: - strcat (buf, ", ARC601"); - break; - case E_ARC_MACH_ARC700: - strcat (buf, ", ARC700"); - break; - default: - strcat (buf, ", unrecognized cpu flag for ARCv2"); - break; - } - switch (e_flags & EF_ARC_OSABI_MSK) - { - case E_ARC_OSABI_ORIG: - strcat (buf, ", (ABI:legacy)"); - break; - case E_ARC_OSABI_V2: - strcat (buf, ", (ABI:v2)"); - break; - /* Only upstream 3.9+ kernels will support ARCv2 ISA. */ - case E_ARC_OSABI_V3: - strcat (buf, ", v3 no-legacy-syscalls ABI"); - break; - default: - strcat (buf, ", unrecognised ARC OSABI flag"); - break; - } - break; - case EM_ARC_COMPACT: - switch (e_flags & EF_ARC_MACH_MSK) - { - case E_ARC_MACH_ARC600: - strcat (buf, ", ARC 600"); - break; - case E_ARC_MACH_ARC601: - strcat (buf, ", ARC 601"); - break; - case E_ARC_MACH_ARC700: - strcat (buf, ", ARC 700"); - break; - default: - strcat (buf, ", Generic ARCompact"); - break; - } - switch (e_flags & EF_ARC_OSABI_MSK) - { - case E_ARC_OSABI_ORIG: - strcat (buf, ", legacy syscall ABI"); - break; - case E_ARC_OSABI_V2: - /* For 3.2+ Linux kernels which use asm-generic - hdrs. */ - strcat (buf, ", v2 syscall ABI"); - break; - case E_ARC_OSABI_V3: - /* Upstream 3.9+ kernels which don't use any legacy - syscalls. */ - strcat (buf, ", v3 no-legacy-syscalls ABI"); - break; - } - break; + decode_ARC_machine_flags (e_flags, e_machine, buf); + break; case EM_ARM: decode_ARM_machine_flags (e_flags, buf); |