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| author | Joseph Myers <joseph@codesourcery.com> | 2018-02-06 00:37:17 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2018-02-06 00:37:17 +0000 |
| commit | d28bf648976eb2e6d0bcc64a53f4ed1ebb59a40e (patch) | |
| tree | 2a44d7026552081b1328ad2bea6636419cec1e2c | |
| parent | e76def72eb74ddc4fcf2b1630f5da742ddbd811d (diff) | |
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Add elf.h NT_* macros from Linux 4.15 (bug 14890).
Linux 4.15 adds NT_S390_RI_CB to linux/elf.h (and NT_ARM_SVE, which we
already have in glibc). This shows up that various other ELF note
values from linux/elf.h are missing from glibc's elf.h.
This patch adds the missing values that are relevant to glibc
architectures. As elf.h is a general description of the ELF format,
not necessarily limited to glibc configurations, there's an argument
for having the remaining NT_* values that Linux uses for non-glibc
architectures in glibc's elf.h as well, but this patch does not add
them.
Adding the NT_PRFPREG name is bug 14890. That bug also requests
making the NT_FPREGSET name obsolete. Given that elf.h is not just
for Linux but can describe ELF for other operating systems, I don't
think that a change of name in the Linux kernel is sufficient
justification for declaring the other name obsolete; there can be
multiple names for the same note value, even with incompatible
semantics, if those reflect variants of the ELF format in actual use.
For example, FreeBSD appears still to have the name NT_FPREGSET
<https://github.com/freebsd/freebsd/blob/master/sys/sys/elf_common.h>
(note: I haven't checked whether the FreeBSD kernel actually generates
such notes or whether this is actually an other-OS definition present
in FreeBSD's header).
[BZ #14890]
* elf/elf.h (NT_PRFPREG): New macro.
(NT_S390_VXRS_LOW): Likewise.
(NT_S390_VXRS_HIGH): Likewise.
(NT_S390_GS_CB): Likewise.
(NT_S390_GS_BC): Likewise.
(NT_S390_RI_CB): Likewise.
| -rw-r--r-- | ChangeLog | 8 | ||||
| -rw-r--r-- | elf/elf.h | 9 |
2 files changed, 17 insertions, 0 deletions
@@ -1,5 +1,13 @@ 2018-02-06 Joseph Myers <joseph@codesourcery.com> + [BZ #14890] + * elf/elf.h (NT_PRFPREG): New macro. + (NT_S390_VXRS_LOW): Likewise. + (NT_S390_VXRS_HIGH): Likewise. + (NT_S390_GS_CB): Likewise. + (NT_S390_GS_BC): Likewise. + (NT_S390_RI_CB): Likewise. + * sysdeps/unix/sysv/linux/aarch64/bits/mman.h [__USE_MISC] (MAP_SYNC): New macro. * sysdeps/unix/sysv/linux/arm/bits/mman.h [__USE_MISC] (MAP_SYNC): @@ -739,6 +739,8 @@ typedef struct /* Legal values for note segment descriptor types for core files. */ #define NT_PRSTATUS 1 /* Contains copy of prstatus struct */ +#define NT_PRFPREG 2 /* Contains copy of fpregset + struct. */ #define NT_FPREGSET 2 /* Contains copy of fpregset struct */ #define NT_PRPSINFO 3 /* Contains copy of prpsinfo struct */ #define NT_PRXREG 4 /* Contains copy of prxregset struct */ @@ -790,6 +792,13 @@ typedef struct #define NT_S390_LAST_BREAK 0x306 /* s390 breaking event address */ #define NT_S390_SYSTEM_CALL 0x307 /* s390 system call restart data */ #define NT_S390_TDB 0x308 /* s390 transaction diagnostic block */ +#define NT_S390_VXRS_LOW 0x309 /* s390 vector registers 0-15 + upper half. */ +#define NT_S390_VXRS_HIGH 0x30a /* s390 vector registers 16-31. */ +#define NT_S390_GS_CB 0x30b /* s390 guarded storage registers. */ +#define NT_S390_GS_BC 0x30c /* s390 guarded storage + broadcast control block. */ +#define NT_S390_RI_CB 0x30d /* s390 runtime instrumentation. */ #define NT_ARM_VFP 0x400 /* ARM VFP/NEON registers */ #define NT_ARM_TLS 0x401 /* ARM TLS register */ #define NT_ARM_HW_BREAK 0x402 /* ARM hardware breakpoint registers */ |