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| author | Carlos O'Donell <carlos@redhat.com> | 2013-02-08 12:26:12 -0500 |
|---|---|---|
| committer | Carlos O'Donell <carlos@redhat.com> | 2013-02-08 12:26:12 -0500 |
| commit | b39949d21179bd0b08a083e4f7e35d0c98e11294 (patch) | |
| tree | 3e37fa10a3a1146afe9f774d95e8bfedd122eb63 /ports | |
| parent | a6ee1783327acdaae31cc4ce700e2983f0175e5d (diff) | |
| download | glibc-b39949d21179bd0b08a083e4f7e35d0c98e11294.tar glibc-b39949d21179bd0b08a083e4f7e35d0c98e11294.tar.gz glibc-b39949d21179bd0b08a083e4f7e35d0c98e11294.tar.bz2 glibc-b39949d21179bd0b08a083e4f7e35d0c98e11294.zip | |
ARM: Support loading unmarked objects from cache.
ARM now supports loading unmarked objects from
the dynamic loader cache. Unmarked objects can
be used with the hard-float or soft-float ABI.
We must support loading unmarked objects during
the transition period from a binutils that does
not mark objects to one that does mark them with
the correct ELF flags.
Signed-off-by: Carlos O'Donell <carlos@redhat.com>
Diffstat (limited to 'ports')
| -rw-r--r-- | ports/ChangeLog.arm | 8 | ||||
| -rw-r--r-- | ports/sysdeps/unix/sysv/linux/arm/dl-cache.h | 9 | ||||
| -rw-r--r-- | ports/sysdeps/unix/sysv/linux/arm/readelflib.c | 6 |
3 files changed, 21 insertions, 2 deletions
diff --git a/ports/ChangeLog.arm b/ports/ChangeLog.arm index b4fb546d96..c4493546e8 100644 --- a/ports/ChangeLog.arm +++ b/ports/ChangeLog.arm @@ -1,3 +1,11 @@ +2013-02-08 Carlos O'Donell <carlos@redhat.com> + + * sysdeps/unix/sysv/linux/arm/dl-cache.h + [__ARM_PCS_VFP] (_dl_cache_check_flags): Allow plain FLAG_ELF_LIBC6. + [!__ARM_PCS_VFP] (_dl_cache_check_flags): Likewise. + * sysdeps/unix/sysv/linux/arm/readelflib.c (process_elf_file): + Set FLAG_ARM_LIBSF for soft-float ABI otherwise just FLAG_ELF_LIBC6. + 2013-02-04 Joseph Myers <joseph@codesourcery.com> [BZ #13550] diff --git a/ports/sysdeps/unix/sysv/linux/arm/dl-cache.h b/ports/sysdeps/unix/sysv/linux/arm/dl-cache.h index acc4f28645..504fecab58 100644 --- a/ports/sysdeps/unix/sysv/linux/arm/dl-cache.h +++ b/ports/sysdeps/unix/sysv/linux/arm/dl-cache.h @@ -18,12 +18,17 @@ #include <ldconfig.h> +/* In order to support the transition from unmarked objects + to marked objects we must treat unmarked objects as + compatible with either FLAG_ARM_LIBHF or FLAG_ARM_LIBSF. */ #ifdef __ARM_PCS_VFP # define _dl_cache_check_flags(flags) \ - ((flags) == (FLAG_ARM_LIBHF | FLAG_ELF_LIBC6)) + ((flags) == (FLAG_ARM_LIBHF | FLAG_ELF_LIBC6) \ + || (flags) == FLAG_ELF_LIBC6) #else # define _dl_cache_check_flags(flags) \ - ((flags) == FLAG_ELF_LIBC6) + ((flags) == (FLAG_ARM_LIBSF | FLAG_ELF_LIBC6) \ + || (flags) == FLAG_ELF_LIBC6) #endif #include_next <dl-cache.h> diff --git a/ports/sysdeps/unix/sysv/linux/arm/readelflib.c b/ports/sysdeps/unix/sysv/linux/arm/readelflib.c index 81e5ccb55f..3efb6134c3 100644 --- a/ports/sysdeps/unix/sysv/linux/arm/readelflib.c +++ b/ports/sysdeps/unix/sysv/linux/arm/readelflib.c @@ -46,6 +46,12 @@ process_elf_file (const char *file_name, const char *lib, int *flag, if (elf32_header->e_flags & EF_ARM_ABI_FLOAT_HARD) *flag = FLAG_ARM_LIBHF|FLAG_ELF_LIBC6; else if (elf32_header->e_flags & EF_ARM_ABI_FLOAT_SOFT) + *flag = FLAG_ARM_LIBSF|FLAG_ELF_LIBC6; + else + /* We must assume the unmarked objects are compatible + with all ABI variants. Such objects may have been + generated in a transitional period when the ABI + tags were not added to all objects. */ *flag = FLAG_ELF_LIBC6; } } |