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authorZach van Rijn <me@zv.io>2022-01-18 18:04:04 +0000
committerA. Wilcox <AWilcox@Wilcox-Tech.com>2022-05-01 17:05:45 -0500
commit41053876509c8e940eb1447717bf2655484bf6af (patch)
tree5cd4f3923716b9741d4443491544cd10ee8db276 /system/fakeroot/also-wrap-stat-library-call.patch
parent2802f651906efae1ff0a6ee9aca9930342440a72 (diff)
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system/fakeroot: add two patches for ppc64. fixes #438.
Diffstat (limited to 'system/fakeroot/also-wrap-stat-library-call.patch')
-rw-r--r--system/fakeroot/also-wrap-stat-library-call.patch63
1 files changed, 63 insertions, 0 deletions
diff --git a/system/fakeroot/also-wrap-stat-library-call.patch b/system/fakeroot/also-wrap-stat-library-call.patch
new file mode 100644
index 000000000..40c830a36
--- /dev/null
+++ b/system/fakeroot/also-wrap-stat-library-call.patch
@@ -0,0 +1,63 @@
+Subject: Also wrap the "stat" library call
+Author: Christoph Biedl <debian.axhn@manchmal.in-ulm.de>
+Date: 2021-12-20
+Bug-Debian: https://bugs.debian.org/1001961
+Forwarded: Yes
+
+ Seems changes in glibc 2.33 caused the stat() function to be mapped
+ into a stat() library call instead of __xstat() as it used to be.
+
+ However, fakeroot does not wrap this, causing files to be reported
+ with the real owner, not 0 as expected.
+
+ The fix for this got a bit ugly as the abstraction in configure.ac
+ would not allow wrapping both "stat" and "__xstat". So enhance the
+ search list capabilities with an optional symbol how the wrapped
+ function is named internally. Also hack the parser so "stat" gets
+ actually probed and not mistaken for __xstat.
+
+ Using "realstat" as a symbol is not the best choice as it might be
+ confusing, but "statstat" seemed even worse.
+
+--- a/configure.ac
++++ b/configure.ac
+@@ -353,9 +353,13 @@
+
+ :>fakerootconfig.h.tmp
+
+-for SEARCH in %stat f%stat l%stat f%statat %stat64 f%stat64 l%stat64 f%statat64 %mknod %mknodat; do
+- FUNC=`echo $SEARCH|sed -e 's/.*%//'`
++for SEARCH in %stat s%tat@realstat f%stat l%stat f%statat %stat64 f%stat64 l%stat64 f%statat64 %mknod %mknodat; do
++ FUNC=`echo $SEARCH|sed -e 's/.*%// ; s/@.*//'`
+ PRE=`echo $SEARCH|sed -e 's/%.*//'`
++ SYMBOL=`echo $SEARCH|sed -e 's/.*@//'`
++ if test "$SYMBOL" = "$SEARCH" ; then
++ SYMBOL="${PRE}${FUNC}"
++ fi
+ FOUND=
+ for WRAPPED in __${PRE}x${FUNC} _${PRE}x${FUNC} __${PRE}${FUNC}13 ${PRE}${FUNC}; do
+ AC_CHECK_FUNCS($WRAPPED,FOUND=$WRAPPED)
+@@ -366,8 +370,8 @@
+ dnl for WRAPPED in _${PRE}${FUNC}; do
+ dnl FOUND=$WRAPPED
+ if test -n "$FOUND"; then
+- PF=[`echo ${PRE}${FUNC}| tr '[a-z]' '[A-Z]'`]
+- DEFINE_WRAP=[`echo wrap_${PRE}${FUNC}| tr '[a-z]' '[A-Z]'`]
++ PF=[`echo $SYMBOL | tr '[a-z]' '[A-Z]'`]
++ DEFINE_WRAP=[`echo wrap_${SYMBOL}| tr '[a-z]' '[A-Z]'`]
+ DEFINE_NEXT=[`echo wrap_${FOUND}| tr '[a-z]' '[A-Z]'`]
+ DEFINE_ARG=[`echo wrap_${FOUND}| tr '[a-z]' '[A-Z]'`]
+ AC_DEFINE_UNQUOTED(WRAP_${PF}, $FOUND)
+@@ -509,6 +513,12 @@
+ #define TMP_STAT __astat
+ #define NEXT_STAT_NOARG next___astat
+
++#define WRAP_REALSTAT __astat
++#define WRAP_REALSTAT_QUOTE __astat
++#define WRAP_REALSTAT_RAW __astat
++#define TMP_REALSTAT __astat
++#define NEXT_REALSTAT_NOARG next___astat
++
+ #define WRAP_LSTAT_QUOTE __astat
+ #define WRAP_LSTAT __astat
+ #define WRAP_LSTAT_RAW __astat