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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) | |
| download | glibc-d28bf648976eb2e6d0bcc64a53f4ed1ebb59a40e.tar.gz glibc-d28bf648976eb2e6d0bcc64a53f4ed1ebb59a40e.tar.xz glibc-d28bf648976eb2e6d0bcc64a53f4ed1ebb59a40e.zip | |
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
diff --git a/ChangeLog b/ChangeLog index 0022ea0450..f4e5ac93f7 100644 --- a/ChangeLog +++ b/ChangeLog @@ -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): diff --git a/elf/elf.h b/elf/elf.h index 912bad22be..4f4357705b 100644 --- a/elf/elf.h +++ b/elf/elf.h @@ -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 */ |