Author: aurel32
Date: 2015-11-21 13:11:24 +0000 (Sat, 21 Nov 2015)
New Revision: 6681
Added:
glibc-package/branches/glibc-2.21/debian/patches/any/cvs-check-localplt.diff
Modified:
glibc-package/branches/glibc-2.21/debian/changelog
glibc-package/branches/glibc-2.21/debian/patches/series
Log:
patches/any/cvs-check-localplt.diff: new patch from upstream to fix
check-localplt test with recent binutils version on x86.
Modified: glibc-package/branches/glibc-2.21/debian/changelog
===================================================================
--- glibc-package/branches/glibc-2.21/debian/changelog 2015-11-02 22:44:53 UTC
(rev 6680)
+++ glibc-package/branches/glibc-2.21/debian/changelog 2015-11-21 13:11:24 UTC
(rev 6681)
@@ -35,6 +35,8 @@
comparison to be entirely skipped.
* testsuite-checking/expected-results-*kfreebsd-gnu-*: update testsuite
results.
+ * patches/any/cvs-check-localplt.diff: new patch from upstream to fix
+ check-localplt test with recent binutils version on x86.
[ Samuel Thibault ]
* patches/hurd-i386/tg-pagesize.diff: Refresh.
Added:
glibc-package/branches/glibc-2.21/debian/patches/any/cvs-check-localplt.diff
===================================================================
---
glibc-package/branches/glibc-2.21/debian/patches/any/cvs-check-localplt.diff
(rev 0)
+++
glibc-package/branches/glibc-2.21/debian/patches/any/cvs-check-localplt.diff
2015-11-21 13:11:24 UTC (rev 6681)
@@ -0,0 +1,206 @@
+2015-07-29 H.J. Lu <hongjiu...@intel.com>
+
+ [BZ #18078]
+ * scripts/check-localplt.awk: Support alternate relocations.
+ * scripts/localplt.awk: Also check relocations in DT_RELA/DT_REL
+ sections.
+ * sysdeps/unix/sysv/linux/i386/localplt.data: Mark free and
+ malloc entries with + REL R_386_GLOB_DAT.
+ * sysdeps/x86_64/localplt.data: New file.
+
+diff --git a/scripts/check-localplt.awk b/scripts/check-localplt.awk
+index bb1b912..3965292 100644
+--- a/scripts/check-localplt.awk
++++ b/scripts/check-localplt.awk
+@@ -3,9 +3,14 @@
+ # Each line is either a comment starting with # or it looks like:
+ # libfoo.so: function
+ # or
++# libfoo.so: function + {RELA|REL} RELOC
++# or
+ # libfoo.so: function ?
+-# The latter means that a PLT entry for function is optional in libfoo.so.
+-# The former means one is required.
++# The first entry means that one is required.
++# The second entry means that one is required and relocation may also be
++# {RELA|REL} RELOC.
++# The third entry means that a PLT entry for function is optional in
++# libfoo.so.
+ # The second file argument is - and this (stdin) receives the output
+ # of the check-localplt program.
+
+@@ -14,7 +19,10 @@ BEGIN { result = 0 }
+ FILENAME != "-" && /^#/ { next }
+
+ FILENAME != "-" {
+- if (NF != 2 && !(NF == 3 && $3 == "?")) {
++ if (NF == 5 && $3 == "+" && ($4 == "RELA" || $4 == "REL")) {
++ accept_type[$1 " " $2] = $4;
++ accept_reloc[$1 " " $2] = $5;
++ } else if (NF != 2 && !(NF == 3 && $3 == "?")) {
+ printf "%s:%d: bad data line: %s\n", FILENAME, FNR, $0 > "/dev/stderr";
+ result = 2;
+ } else {
+@@ -23,7 +31,7 @@ FILENAME != "-" {
+ next;
+ }
+
+-NF != 2 {
++NF != 2 && !(NF == 4 && ($3 == "RELA" || $3 == "REL")) {
+ print "Unexpected output from check-localplt:", $0 > "/dev/stderr";
+ result = 2;
+ next
+@@ -31,7 +39,23 @@ NF != 2 {
+
+ {
+ key = $1 " " $2
+- if (key in accept) {
++ if ($3 == "RELA" || $3 == "REL") {
++ # Entries like:
++ # libc.so: free + RELA R_X86_64_GLOB_DAT
++ # may be ignored.
++ if (key in accept_type && accept_type[key] == $3 && accept_reloc[key] ==
$4) {
++ # Match
++ # libc.so: free + RELA R_X86_64_GLOB_DAT
++ delete accept_type[key]
++ }
++ } else if (NF == 2 && key in accept_reloc) {
++ # Match
++ # libc.so: free
++ # against
++ # libc.so: free + RELA R_X86_64_GLOB_DAT
++ if (key in accept_type)
++ delete accept_type[key]
++ } else if (key in accept) {
+ delete accept[key]
+ } else {
+ print "Extra PLT reference:", $0;
+@@ -49,5 +73,11 @@ END {
+ }
+ }
+
++ for (key in accept_type) {
++ # It's mandatory.
++ print "Missing required PLT or " accept_reloc[key] " reference:", key;
++ result = 1;
++ }
++
+ exit(result);
+ }
+diff --git a/scripts/localplt.awk b/scripts/localplt.awk
+index 84c94d1..f75b3b4 100644
+--- a/scripts/localplt.awk
++++ b/scripts/localplt.awk
+@@ -13,6 +13,8 @@ FILENAME != lastfile {
+ }
+ lastfile = FILENAME;
+ jmprel_offset = 0;
++ rela_offset = 0;
++ rel_offset = 0;
+ delete section_offset_by_address;
+ }
+
+@@ -43,6 +45,30 @@ in_relocs && relocs_offset == jmprel_offset && NF >= 5 {
+ }
+ }
+
++in_relocs && relocs_offset == rela_offset && NF >= 5 {
++ # Relocations against GNU_IFUNC symbols are not shown as an hexadecimal
++ # value, but rather as the resolver symbol followed by ().
++ if ($4 ~ /\(\)/) {
++ print whatfile, gensub(/@.*/, "", "g", $5), "RELA", $3
++ } else {
++ symval = strtonum("0x" $4);
++ if (symval != 0)
++ print whatfile, gensub(/@.*/, "", "g", $5), "RELA", $3
++ }
++}
++
++in_relocs && relocs_offset == rel_offset && NF >= 5 {
++ # Relocations against GNU_IFUNC symbols are not shown as an hexadecimal
++ # value, but rather as the resolver symbol followed by ().
++ if ($4 ~ /\(\)/) {
++ print whatfile, gensub(/@.*/, "", "g", $5), "REL", $3
++ } else {
++ symval = strtonum("0x" $4);
++ if (symval != 0)
++ print whatfile, gensub(/@.*/, "", "g", $5), "REL", $3
++ }
++}
++
+ in_relocs { next }
+
+ $1 == "Relocation" && $2 == "section" && $5 == "offset" {
+@@ -62,4 +88,25 @@ $2 == "(JMPREL)" {
+ next
+ }
+
++$2 == "(RELA)" {
++ rela_addr = strtonum($3);
++ if (rela_addr in section_offset_by_address) {
++ rela_offset = section_offset_by_address[rela_addr];
++ } else {
++ print FILENAME ": *** DT_RELA does not match any section's address";
++ result = 2;
++ }
++ next
++}
++
++$2 == "(REL)" {
++ rel_addr = strtonum($3);
++ if (rel_addr in section_offset_by_address) {
++ rel_offset = section_offset_by_address[rel_addr];
++ } else {
++ print FILENAME ": *** DT_REL does not match any section's address";
++ result = 2;
++ }
++ next
++}
+ END { exit(result) }
+diff --git a/sysdeps/unix/sysv/linux/i386/localplt.data
b/sysdeps/unix/sysv/linux/i386/localplt.data
+index b25abf8..2e03821 100644
+--- a/sysdeps/unix/sysv/linux/i386/localplt.data
++++ b/sysdeps/unix/sysv/linux/i386/localplt.data
+@@ -1,7 +1,9 @@
++# Linker in binutils 2.26 and newer consolidates R_X86_64_JUMP_SLOT
++# relocation with R_386_GLOB_DAT relocation against the same symbol.
+ libc.so: _Unwind_Find_FDE
+ libc.so: calloc
+-libc.so: free
+-libc.so: malloc
++libc.so: free + REL R_386_GLOB_DAT
++libc.so: malloc + REL R_386_GLOB_DAT
+ libc.so: memalign
+ libc.so: realloc
+ libm.so: matherr
+@@ -12,4 +14,4 @@ ld.so: __libc_memalign
+ ld.so: malloc
+ ld.so: calloc
+ ld.so: realloc
+-ld.so: free
++ld.so: free + REL R_386_GLOB_DAT
+diff --git a/sysdeps/x86_64/localplt.data b/sysdeps/x86_64/localplt.data
+new file mode 100644
+index 0000000..d140476
+--- /dev/null
++++ b/sysdeps/x86_64/localplt.data
+@@ -0,0 +1,19 @@
++# See scripts/check-localplt.awk for how this file is processed.
++# PLT use is required for the malloc family and for matherr because
++# users can define their own functions and have library internals call them.
++# Linker in binutils 2.26 and newer consolidates R_X86_64_JUMP_SLOT
++# relocation with R_X86_64_GLOB_DAT relocation against the same symbol.
++libc.so: calloc
++libc.so: free + RELA R_X86_64_GLOB_DAT
++libc.so: malloc + RELA R_X86_64_GLOB_DAT
++libc.so: memalign
++libc.so: realloc
++libm.so: matherr
++# The dynamic loader uses __libc_memalign internally to allocate aligned
++# TLS storage. The other malloc family of functions are expected to allow
++# user symbol interposition.
++ld.so: __libc_memalign
++ld.so: malloc
++ld.so: calloc
++ld.so: realloc
++ld.so: free + RELA R_X86_64_GLOB_DAT
Modified: glibc-package/branches/glibc-2.21/debian/patches/series
===================================================================
--- glibc-package/branches/glibc-2.21/debian/patches/series 2015-11-02
22:44:53 UTC (rev 6680)
+++ glibc-package/branches/glibc-2.21/debian/patches/series 2015-11-21
13:11:24 UTC (rev 6681)
@@ -274,3 +274,4 @@
any/cvs-mangle-tls_dtor_list.diff
any/cvs-tls-dtv.diff
any/cvs-rfc3542-advanced-api.diff
+any/cvs-check-localplt.diff
