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help / color / mirror / Atom feedFrom: Srirama Kucherlapati <[email protected]>
To: Heikki Linnakangas <[email protected]>
To: wenhui qiu <[email protected]>
To: [email protected] <[email protected]>
To: [email protected] <[email protected]>
Cc: Robert Haas <[email protected]>
Cc: Bruce Momjian <[email protected]>
Cc: Peter Eisentraut <[email protected]>
Cc: Alvaro Herrera <[email protected]>
Cc: Laurenz Albe <[email protected]>
Cc: Noah Misch <[email protected]>
Cc: Michael Paquier <[email protected]>
Cc: Andres Freund <[email protected]>
Cc: Thomas Munro <[email protected]>
Cc: [email protected] <[email protected]>
Cc: Tom Lane <[email protected]>
Cc: Tristan Partin <[email protected]>
Subject: RE: AIX support
Date: Fri, 4 Apr 2025 19:31:58 +0000
Message-ID: <CY8PR15MB56020EB4076E7AACBE4A78A7DBA92@CY8PR15MB5602.namprd15.prod.outlook.com> (raw)
In-Reply-To: <[email protected]>
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<[email protected]>
Hi Heikki and team,
Thank you for considering our request. As discussed, we have revised the patch
to incorporate all the review comments provided.
Please find the attached patch, which focuses solely on the gmake changes.
As discussed the meson specific changes would be provided as different patch.
We have taken into account and resolved the earlier comments within this patch.
https://www.postgresql.org/message-id/e0dc2bff-300b-4edd-912b-b6c52274bdc5%40iki.fi
- Build using latest master. (used commit 898c131b58a0b)
- We have merged our changes to this latest level.
- configure.ac
- Updated the changes aligning to configure file.
- configure
- Updated the comments wrt to the alignment details. Updated with
the gcc specific fix which talks about the alignment.
- updated the int64_t specific changes.
- doc/src/sgml/dfunc.sgml
- This is removed as it is not relevant.
- src/backend/port/aix/mkldexport.sh
- When building shared libraries from various archives on AIX, we encounter a
situation where symbols are not exported. To resolve this, we require an export
file. For instance, the command is used to export symbols.
gcc -shared libtest.so libtest.a -Wl,-bE:test.exp
However, if we directly provide object files in the command line instead of an
archive, the symbols will be exported automatically, as demonstrated by the command
gcc -shared libtest.so test1.o test2.o test3.o.
- We will update the description with additional details in the later point of time. (Considering the time lines)
- src/makefiles/Makefile.aix
- The changes in this file are required
- This change is not required β+LDFLAGS_SL += -Wl,-bnoentry -Wl,-H512 -Wl,-bM:SREβ
- src/template/aix
- WRT to the MEMSET_LOOP_LIMIT flag, this is set to β0β, which would internally use
The system call memset() as mentioned in the below link as well
https://www.postgresql.org/message-id/20060203135315.E08B09DC816%40postgresql.org
I Kindly request you to review the changes and provide your feedback.
With all the above changes we have built and ran the tests. As of now we see
there is only one test case that is failing, which seems to have been
introduced recently. And this might not be related to the above changes as
earlier there were no test cases failing.
64 not ok 12 + float8 235 ms
297 # 1 of 226 tests failed.
20 +ERROR: value out of range: overflow
21 -- test overflow/underflow handling
22 SELECT gamma(float8 '-infinity');
23 ERROR: value out of range: overflow
Warm regards,
Sriram.
Attachments:
[application/octet-stream] 0001-AIX-support.v7.patch (14.4K, 3-0001-AIX-support.v7.patch)
download | inline diff:
From 614cd077da0de9ca92c4e4fb300c39f73ab5ad10 Mon Sep 17 00:00:00 2001
From: Sriram RK <[email protected]>
Date: Fri, 4 Apr 2025 13:16:21 -0500
Subject: [PATCH] AIX support.
---
Makefile | 2 -
configure | 34 ++++++++++++++---
configure.ac | 34 ++++++++++++++---
src/Makefile.shlib | 29 ++++++++++++++
src/backend/Makefile | 20 ++++++++++
src/backend/port/aix/mkldexport.sh | 61 ++++++++++++++++++++++++++++++
src/backend/utils/error/elog.c | 2 +
src/include/port/aix.h | 4 ++
src/include/storage/s_lock.h | 10 ++---
src/makefiles/Makefile.aix | 39 +++++++++++++++++++
src/port/strerror.c | 2 +
src/template/aix | 7 ++++
12 files changed, 224 insertions(+), 20 deletions(-)
create mode 100755 src/backend/port/aix/mkldexport.sh
create mode 100644 src/include/port/aix.h
create mode 100644 src/makefiles/Makefile.aix
create mode 100644 src/template/aix
diff --git a/Makefile b/Makefile
index 8a2ec9396b6..9bc1a4ec17b 100644
--- a/Makefile
+++ b/Makefile
@@ -13,8 +13,6 @@
# AIX make defaults to building *every* target of the first rule. Start with
# a single-target, empty rule to make the other targets non-default.
-# (We don't support AIX anymore, but if someone tries to build on AIX anyway,
-# at least they'll get the instructions to run 'configure' first.)
all:
all check install installdirs installcheck installcheck-parallel uninstall clean distclean maintainer-clean dist distcheck world check-world install-world installcheck-world:
diff --git a/configure b/configure
index 11615d1122d..6088fa26679 100755
--- a/configure
+++ b/configure
@@ -3008,6 +3008,7 @@ else
# --with-template not given
case $host_os in
+ aix*) template=aix ;;
cygwin*|msys*) template=cygwin ;;
darwin*) template=darwin ;;
dragonfly*) template=netbsd ;;
@@ -16953,13 +16954,34 @@ _ACEOF
# wider than 64 bits, as allowing MAXIMUM_ALIGNOF to exceed 8 would be too
# much of a penalty for disk and memory space.
-MAX_ALIGNOF=$ac_cv_alignof_double
+if test "$PORTNAME" != "aix"; then
+ MAX_ALIGNOF=$ac_cv_alignof_double
+
+ if test $ac_cv_alignof_long -gt $MAX_ALIGNOF ; then
+ as_fn_error $? "alignment of 'long' is greater than the alignment of 'double'" "$LINENO" 5
+ fi
+ if test $ac_cv_alignof_int64_t -gt $MAX_ALIGNOF ; then
+ as_fn_error $? "alignment of 'long long int' is greater than the alignment of 'double'" "$LINENO" 5
+ fi
+else
+# The AIX 'power' alignment rules apply the natural alignment of the "first
+# member" if it is of a floating-point data type (or is an aggregate whose
+# recursively "first" member or element is such a type). The alignment
+# associated with these types for subsequent members use an alignment value
+# where the floating-point data type is considered to have 4-byte alignment.
+# More info
+# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99557
+#
+# The double is aligned to 4-bytes on AIX in aggregates. But to maintain
+# alignement across platforms the max alignment of long should be considered.
+ MAX_ALIGNOF=$ac_cv_alignof_long
+ if test $MAX_ALIGNOF -lt $ac_cv_alignof_double ; then
+ MAX_ALIGNOF=$ac_cv_alignof_double
+ fi
+ if test $MAX_ALIGNOF -lt $ac_cv_alignof_int64_t; then
+ MAX_ALIGNOF="$ac_cv_alignof_int64_t"
+ fi
-if test $ac_cv_alignof_long -gt $MAX_ALIGNOF ; then
- as_fn_error $? "alignment of 'long' is greater than the alignment of 'double'" "$LINENO" 5
-fi
-if test $ac_cv_alignof_int64_t -gt $MAX_ALIGNOF ; then
- as_fn_error $? "alignment of 'int64_t' is greater than the alignment of 'double'" "$LINENO" 5
fi
cat >>confdefs.h <<_ACEOF
diff --git a/configure.ac b/configure.ac
index debdf165044..c21aaa52064 100644
--- a/configure.ac
+++ b/configure.ac
@@ -62,6 +62,7 @@ PGAC_ARG_REQ(with, template, [NAME], [override operating system template],
# --with-template not given
case $host_os in
+ aix*) template=aix ;;
cygwin*|msys*) template=cygwin ;;
darwin*) template=darwin ;;
dragonfly*) template=netbsd ;;
@@ -1987,13 +1988,34 @@ AC_CHECK_ALIGNOF(double)
# wider than 64 bits, as allowing MAXIMUM_ALIGNOF to exceed 8 would be too
# much of a penalty for disk and memory space.
-MAX_ALIGNOF=$ac_cv_alignof_double
+if test "$PORTNAME" != "aix"; then
+ MAX_ALIGNOF=$ac_cv_alignof_double
+
+ if test $ac_cv_alignof_long -gt $MAX_ALIGNOF ; then
+ as_fn_error $? "alignment of 'long' is greater than the alignment of 'double'" "$LINENO" 5
+ fi
+ if test $ac_cv_alignof_int64_t -gt $MAX_ALIGNOF; then
+ as_fn_error $? "alignment of 'long long int' is greater than the alignment of 'double'" "$LINENO" 5
+ fi
+else
+# The AIX 'power' alignment rules apply the natural alignment of the "first
+# member" if it is of a floating-point data type (or is an aggregate whose
+# recursively "first" member or element is such a type). The alignment
+# associated with these types for subsequent members use an alignment value
+# where the floating-point data type is considered to have 4-byte alignment.
+# More info
+# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99557
+#
+# The double is aligned to 4-bytes on AIX in aggregates. But to maintain
+# alignement across platforms the max alignment of long should be considered.
+ MAX_ALIGNOF=$ac_cv_alignof_long
+ if test $MAX_ALIGNOF -lt $ac_cv_alignof_double ; then
+ MAX_ALIGNOF=$ac_cv_alignof_double
+ fi
+ if test $MAX_ALIGNOF -lt $ac_cv_alignof_int64_t ; then
+ MAX_ALIGNOF="$ac_cv_alignof_int64_t"
+ fi
-if test $ac_cv_alignof_long -gt $MAX_ALIGNOF ; then
- AC_MSG_ERROR([alignment of 'long' is greater than the alignment of 'double'])
-fi
-if test $ac_cv_alignof_int64_t -gt $MAX_ALIGNOF ; then
- AC_MSG_ERROR([alignment of 'int64_t' is greater than the alignment of 'double'])
fi
AC_DEFINE_UNQUOTED(MAXIMUM_ALIGNOF, $MAX_ALIGNOF, [Define as the maximum alignment requirement of any C data type.])
diff --git a/src/Makefile.shlib b/src/Makefile.shlib
index fa81f6ffdd6..13ea84ac185 100644
--- a/src/Makefile.shlib
+++ b/src/Makefile.shlib
@@ -106,6 +106,20 @@ ifdef SO_MAJOR_VERSION
override CPPFLAGS += -DSO_MAJOR_VERSION=$(SO_MAJOR_VERSION)
endif
+ifeq ($(PORTNAME), aix)
+ LINK.shared = $(COMPILER)
+ ifdef SO_MAJOR_VERSION
+ shlib = lib$(NAME)$(DLSUFFIX).$(SO_MAJOR_VERSION)
+ endif
+ haslibarule = yes
+ # $(exports_file) is also usable as an import file
+ exports_file = lib$(NAME).exp
+ BUILD.exports = ( echo '\#! $(shlib)'; $(AWK) '/^[^\#]/ {printf "%s\n",$$1}' $< ) > $@
+ ifneq (,$(SHLIB_EXPORTS))
+ LINK.shared += -Wl,-bE:$(exports_file)
+ endif
+endif
+
ifeq ($(PORTNAME), darwin)
ifdef soname
# linkable library
@@ -254,6 +268,14 @@ $(stlib): $(OBJS) | $(SHLIB_PREREQS)
touch $@
endif #haslibarule
+# AIX wraps both shared libraries and static library, which can be used both
+# for static and shared linking
+ifeq ($(PORTNAME), aix)
+$(stlib): $(shlib)
+ rm -f $(stlib)
+ $(AR) $(AROPT) $(stlib) $(shlib)
+endif # aix
+
ifeq (,$(filter cygwin win32,$(PORTNAME)))
# Normal case
@@ -267,8 +289,11 @@ ifneq ($(shlib), $(shlib_major))
endif
# Make sure we have a link to a name without any version numbers
ifneq ($(shlib), $(shlib_bare))
+# except on AIX, where that's not a thing
+ifneq ($(PORTNAME), aix)
rm -f $(shlib_bare)
$(LN_S) $(shlib) $(shlib_bare)
+endif # aix
endif # shlib_bare
endif # shlib_major
@@ -376,6 +401,9 @@ install-lib-static: $(stlib) installdirs-lib
install-lib-shared: $(shlib) installdirs-lib
ifdef soname
+# we don't install $(shlib) on AIX
+# (see http://archives.postgresql.org/message-id/52EF20B2E3209443BC37736D00C3C1380A6E79FE@EXADV1.host.magwien.gv.at)
+ifneq ($(PORTNAME), aix)
$(INSTALL_SHLIB) $< '$(DESTDIR)$(libdir)/$(shlib)'
ifneq ($(PORTNAME), cygwin)
ifneq ($(PORTNAME), win32)
@@ -391,6 +419,7 @@ ifneq ($(shlib), $(shlib_bare))
endif
endif # not win32
endif # not cygwin
+endif # not aix
ifneq (,$(findstring $(PORTNAME),win32 cygwin))
$(INSTALL_SHLIB) $< '$(DESTDIR)$(bindir)/$(shlib)'
endif
diff --git a/src/backend/Makefile b/src/backend/Makefile
index 7344c8c7f5c..572f5430a60 100644
--- a/src/backend/Makefile
+++ b/src/backend/Makefile
@@ -63,12 +63,14 @@ all: submake-libpgport submake-catalog-headers submake-utils-headers postgres $(
ifneq ($(PORTNAME), cygwin)
ifneq ($(PORTNAME), win32)
+ifneq ($(PORTNAME), aix)
postgres: $(OBJS)
$(CC) $(CFLAGS) $(call expand_subsys,$^) $(LDFLAGS) $(LIBS) -o $@
endif
endif
+endif
ifeq ($(PORTNAME), cygwin)
@@ -95,6 +97,24 @@ libpostgres.a: postgres
endif # win32
+ifeq ($(PORTNAME), aix)
+
+postgres: $(POSTGRES_IMP)
+ $(CC) $(CFLAGS) $(call expand_subsys,$(OBJS)) $(LDFLAGS) -Wl,-bE:$(top_builddir)/src/backend/$(POSTGRES_IMP) $(LIBS) -Wl,-brtllib -o $@
+
+# Linking to a single .o with -r is a lot faster than building a .a or passing
+# all objects to MKLDEXPORT.
+#
+# It looks alluring to use $(CC) -r instead of ld -r, but that doesn't
+# trivially work with gcc, due to gcc specific static libraries linked in with
+# -r.
+$(POSTGRES_IMP): $(OBJS)
+ ld -r -o SUBSYS.o $(call expand_subsys,$^)
+ $(MKLDEXPORT) SUBSYS.o . > $@
+ @rm -f SUBSYS.o
+
+endif # aix
+
$(top_builddir)/src/port/libpgport_srv.a: | submake-libpgport
diff --git a/src/backend/port/aix/mkldexport.sh b/src/backend/port/aix/mkldexport.sh
new file mode 100755
index 00000000000..adf3793e868
--- /dev/null
+++ b/src/backend/port/aix/mkldexport.sh
@@ -0,0 +1,61 @@
+#!/bin/sh
+#
+# mkldexport
+# create an AIX exports file from an object file
+#
+# src/backend/port/aix/mkldexport.sh
+#
+# Usage:
+# mkldexport objectfile [location]
+# where
+# objectfile is the current location of the object file.
+# location is the eventual (installed) location of the
+# object file (if different from the current
+# working directory).
+#
+# [This file comes from the Postgres 4.2 distribution. - ay 7/95]
+#
+# Header: /usr/local/devel/postgres/src/tools/mkldexport/RCS/mkldexport.sh,v 1.2 1994/03/13 04:59:12 aoki Exp
+#
+
+# setting this to nm -B might be better
+# ... due to changes in AIX 4.x ...
+# ... let us search in different directories - Gerhard Reithofer
+if [ -x /usr/ucb/nm ]
+then NM=/usr/ucb/nm
+elif [ -x /usr/bin/nm ]
+then NM=/usr/bin/nm
+elif [ -x /usr/ccs/bin/nm ]
+then NM=/usr/ccs/bin/nm
+elif [ -x /usr/usg/bin/nm ]
+then NM=/usr/usg/bin/nm
+else echo "Fatal error: cannot find `nm' ... please check your installation."
+ exit 1
+fi
+
+CMDNAME=`basename $0`
+if [ -z "$1" ]; then
+ echo "Usage: $CMDNAME object [location]"
+ exit 1
+fi
+OBJNAME=`basename $1`
+if [ "`basename $OBJNAME`" != "`basename $OBJNAME .o`" ]; then
+ OBJNAME=`basename $OBJNAME .o`.so
+fi
+if [ -z "$2" ]; then
+ echo '#!'
+else
+ if [ "$2" = "." ]; then
+ # for the base executable (AIX 4.2 and up)
+ echo '#! .'
+ else
+ echo '#!' $2
+ fi
+fi
+$NM -BCg $1 | \
+ egrep ' [TDB] ' | \
+ sed -e 's/.* //' | \
+ egrep -v '\$' | \
+ sed -e 's/^[.]//' | \
+ sort | \
+ uniq
diff --git a/src/backend/utils/error/elog.c b/src/backend/utils/error/elog.c
index 8a6b6905079..3a8e9dc30b0 100644
--- a/src/backend/utils/error/elog.c
+++ b/src/backend/utils/error/elog.c
@@ -904,7 +904,9 @@ errcode_for_file_access(void)
/* Wrong object type or state */
case ENOTDIR: /* Not a directory */
case EISDIR: /* Is a directory */
+#if defined(ENOTEMPTY) && (ENOTEMPTY != EEXIST) /* same code on AIX */
case ENOTEMPTY: /* Directory not empty */
+#endif
edata->sqlerrcode = ERRCODE_WRONG_OBJECT_TYPE;
break;
diff --git a/src/include/port/aix.h b/src/include/port/aix.h
new file mode 100644
index 00000000000..7d08480c8c0
--- /dev/null
+++ b/src/include/port/aix.h
@@ -0,0 +1,4 @@
+/*
+ * src/include/port/aix.h
+ */
+
diff --git a/src/include/storage/s_lock.h b/src/include/storage/s_lock.h
index 2f73f9fcf57..5da9b3acda4 100644
--- a/src/include/storage/s_lock.h
+++ b/src/include/storage/s_lock.h
@@ -421,17 +421,15 @@ tas(volatile slock_t *lock)
__asm__ __volatile__(
" lwarx %0,0,%3,1 \n"
" cmpwi %0,0 \n"
-" bne 1f \n"
+" bne $+16 \n" /* branch to li %1,1 */
" addi %0,%0,1 \n"
" stwcx. %0,0,%3 \n"
-" beq 2f \n"
-"1: \n"
+" beq $+12 \n" /* branch to lwsync */
" li %1,1 \n"
-" b 3f \n"
-"2: \n"
+" b $+12 \n" /* branch to end of asm sequence */
" lwsync \n"
" li %1,0 \n"
-"3: \n"
+
: "=&b"(_t), "=r"(_res), "+m"(*lock)
: "r"(lock)
: "memory", "cc");
diff --git a/src/makefiles/Makefile.aix b/src/makefiles/Makefile.aix
new file mode 100644
index 00000000000..d33918f91b9
--- /dev/null
+++ b/src/makefiles/Makefile.aix
@@ -0,0 +1,39 @@
+# MAKE_EXPORTS is required for svr4 loaders that want a file of
+# symbol names to tell them what to export/import.
+MAKE_EXPORTS= true
+
+# -blibpath must contain ALL directories where we should look for libraries
+libpath := $(shell echo $(subst -L,:,$(filter -L/%,$(LDFLAGS))) | sed -e's/ //g'):/usr/lib:/lib
+
+# when building with gcc, need to make sure that libgcc can be found
+ifeq ($(GCC), yes)
+libpath := $(libpath):$(dir $(shell gcc -print-libgcc-file-name))
+endif
+
+rpath = -Wl,-blibpath:'$(rpathdir)$(libpath)'
+
+#LDFLAGS_SL += -Wl,-bnoentry -Wl,-H512 -Wl,-bM:SRE
+
+# gcc needs to know it's building a shared lib, otherwise it'll not emit
+# correct code / link to the right support libraries
+ifeq ($(GCC), yes)
+LDFLAGS_SL += -shared
+endif
+
+# env var name to use in place of LD_LIBRARY_PATH
+ld_library_path_var = LIBPATH
+
+
+POSTGRES_IMP= postgres.imp
+
+ifdef PGXS
+BE_DLLLIBS= -Wl,-bI:$(pkglibdir)/$(POSTGRES_IMP)
+else
+BE_DLLLIBS= -Wl,-bI:$(top_builddir)/src/backend/$(POSTGRES_IMP)
+endif
+
+MKLDEXPORT_DIR=src/backend/port/aix
+MKLDEXPORT=$(top_srcdir)/$(MKLDEXPORT_DIR)/mkldexport.sh
+
+%$(DLSUFFIX): %.o
+ $(CC) $(CFLAGS) $*.o $(LDFLAGS) $(LDFLAGS_SL) -o $@ $(BE_DLLLIBS)
diff --git a/src/port/strerror.c b/src/port/strerror.c
index f0746517770..c46b9dc91fc 100644
--- a/src/port/strerror.c
+++ b/src/port/strerror.c
@@ -214,8 +214,10 @@ get_errno_symbol(int errnum)
return "ENOTCONN";
case ENOTDIR:
return "ENOTDIR";
+#if defined(ENOTEMPTY) && (ENOTEMPTY != EEXIST) /* same code on AIX */
case ENOTEMPTY:
return "ENOTEMPTY";
+#endif
case ENOTSOCK:
return "ENOTSOCK";
#ifdef ENOTSUP
diff --git a/src/template/aix b/src/template/aix
new file mode 100644
index 00000000000..48a3ce55cf7
--- /dev/null
+++ b/src/template/aix
@@ -0,0 +1,7 @@
+# src/template/aix
+
+# Extra CFLAGS for code that will go into a shared library
+CFLAGS_SL=""
+
+# Native memset() is faster.
+MEMSET_LOOP_LIMIT=0
--
2.41.0
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Subject: RE: AIX support
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