about summary refs log tree commit diff
path: root/elf
diff options
context:
space:
mode:
authorStefan Liebler <stli@linux.ibm.com>2019-03-13 10:45:35 +0100
committerStefan Liebler <stli@linux.ibm.com>2019-03-13 10:51:23 +0100
commitbc6f839fb4066be83272c735e662850af2595777 (patch)
tree476b3e8cee766fae7d816d39efec7b374c4e367d /elf
parent067fc32968b601493f4b247a3ac00caeea3f3d61 (diff)
downloadglibc-bc6f839fb4066be83272c735e662850af2595777.tar.gz
glibc-bc6f839fb4066be83272c735e662850af2595777.tar.xz
glibc-bc6f839fb4066be83272c735e662850af2595777.zip
Fix output of LD_SHOW_AUXV=1.
Starting with commit 1616d034b61622836d3a36af53dcfca7624c844e
the output was corrupted on some platforms as _dl_procinfo
was called for every auxv entry and on some architectures like s390
all entries were represented as "AT_HWCAP".

This patch is removing the condition and let _dl_procinfo decide if
an entry is printed in a platform specific or generic way.
This patch also adjusts all _dl_procinfo implementations which assumed
that they are only called for AT_HWCAP or AT_HWCAP2. They are now just
returning a non-zero-value for entries which are not handled platform
specifc.

ChangeLog:

	* elf/dl-sysdep.c (_dl_show_auxv): Remove condition and always
	call _dl_procinfo.
	* sysdeps/unix/sysv/linux/s390/dl-procinfo.h (_dl_procinfo):
	Ignore types other than AT_HWCAP.
	* sysdeps/sparc/dl-procinfo.h (_dl_procinfo): Likewise.
	* sysdeps/unix/sysv/linux/i386/dl-procinfo.h (_dl_procinfo):
	Likewise.
	* sysdeps/powerpc/dl-procinfo.h (_dl_procinfo): Adjust comment
	in the case of falling back to generic output mechanism.
	* sysdeps/unix/sysv/linux/arm/dl-procinfo.h (_dl_procinfo):
	Likewise.

(cherry picked from commit 7c6513082b787a7d36ab7d75720b48f8a216089c)

Conflicts:
	ChangeLog
Diffstat (limited to 'elf')
-rw-r--r--elf/dl-sysdep.c11
1 files changed, 3 insertions, 8 deletions
diff --git a/elf/dl-sysdep.c b/elf/dl-sysdep.c
index 5f6c679a3f..5d19b100b2 100644
--- a/elf/dl-sysdep.c
+++ b/elf/dl-sysdep.c
@@ -328,14 +328,9 @@ _dl_show_auxv (void)
       assert (AT_NULL == 0);
       assert (AT_IGNORE == 1);
 
-      if (av->a_type == AT_HWCAP || av->a_type == AT_HWCAP2
-	  || AT_L1I_CACHEGEOMETRY || AT_L1D_CACHEGEOMETRY
-	  || AT_L2_CACHEGEOMETRY || AT_L3_CACHEGEOMETRY)
-	{
-	  /* These are handled in a special way per platform.  */
-	  if (_dl_procinfo (av->a_type, av->a_un.a_val) == 0)
-	    continue;
-	}
+      /* Some entries are handled in a special way per platform.  */
+      if (_dl_procinfo (av->a_type, av->a_un.a_val) == 0)
+	continue;
 
       if (idx < sizeof (auxvars) / sizeof (auxvars[0])
 	  && auxvars[idx].form != unknown)