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authorCarlos O'Donell <carlos@redhat.com>2013-05-22 23:22:36 -0400
committerCarlos O'Donell <carlos@redhat.com>2013-05-22 23:22:36 -0400
commit13e23af76e64efc055103344bd56d553ceee8512 (patch)
tree46ea93986dadb55cdef965785508d2783342cf7d /elf/ldconfig.c
parentDon't include function names in test data in generated libm-test.c. (diff)
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Update comments in ldconfig.c and dl-hwcaps.c.
In dl-hwcaps.c the comment read that rounding was done to ElfW(Addr), but it's actually rounded to ElfW(Word). In ldconfig.c we make each comment a sentence and mention that the "tls" pseudo-hwcap is just for legacy installations where TLS was optional. --- 2013-05-22 Carlos O'Donell <carlos@redhat.com> * elf/ldconfig.c (is_hwcap_platform): Make comments full setences. (main): Mention "tls" pseudo-hwcap is legacy. * elf/dl-hwcaps.c (_dl_important_hwcaps): Correct rounding comment.
Diffstat (limited to 'elf/ldconfig.c')
-rw-r--r--elf/ldconfig.c14
1 files changed, 8 insertions, 6 deletions
diff --git a/elf/ldconfig.c b/elf/ldconfig.c
index 13f262d65c..c7b9eb92fe 100644
--- a/elf/ldconfig.c
+++ b/elf/ldconfig.c
@@ -174,17 +174,17 @@ is_hwcap_platform (const char *name)
{
int hwcap_idx = _dl_string_hwcap (name);
- /* Is this a normal hwcap for the machine e.g. fpu? */
+ /* Is this a normal hwcap for the machine like "fpu?" */
if (hwcap_idx != -1 && ((1 << hwcap_idx) & hwcap_mask))
return 1;
- /* ... Or is it a platform pseudo-hwcap e.g. i686? */
+ /* Is this a platform pseudo-hwcap like "i686?" */
hwcap_idx = _dl_string_platform (name);
if (hwcap_idx != -1)
return 1;
- /* ... Or is this one of the extra pseudo-hwcaps that we map beyond
- _DL_FIRST_EXTRA e.g. tls, or nosegneg? */
+ /* Is this one of the extra pseudo-hwcaps that we map beyond
+ _DL_FIRST_EXTRA like "tls", or "nosegneg?" */
for (hwcap_idx = _DL_FIRST_EXTRA; hwcap_idx < 64; ++hwcap_idx)
if (hwcap_extra[hwcap_idx - _DL_FIRST_EXTRA] != NULL
&& !strcmp (name, hwcap_extra[hwcap_idx - _DL_FIRST_EXTRA]))
@@ -1270,8 +1270,10 @@ main (int argc, char **argv)
add_dir (argv[i]);
}
- /* The last entry in hwcap_extra is reserved for the "tls"
- pseudo-hwcap which indicates support for TLS. */
+ /* The last entry in hwcap_extra is reserved for the "tls" pseudo-hwcap which
+ indicates support for TLS. This pseudo-hwcap is only used by old versions
+ under which TLS support was optional. The entry is no longer needed, but
+ must remain for compatibility. */
hwcap_extra[63 - _DL_FIRST_EXTRA] = "tls";
set_hwcap ();