Like R_flag_in_section, the o_flag_in_section effective target is a
misnomer. It actually signifies support for the SHF_LINK_ORDER section
flag. Therefore this patch uses the et-static framework to determine it
from HAVE_GAS_SECTION_LINK_ORDER in auto-host.h, adapting the existing
uses.
Bootstrapped without regressions on i386-pc-solaris2.11 and
x86_64-pc-linux-gnu.
To be committed to trunk after et-static soak time.
Rainer
--
-----------------------------------------------------------------------------
Rainer Orth, Center for Biotechnology, Bielefeld University
2026-01-13 Rainer Orth <[email protected]>
gcc:
* configure.ac (HAVE_GAS_SECTION_LINK_ORDER): Clarify comment.
* config.in: Regenerate.
* doc/sourcebuild.texi (Effective-Target Keywords)
(o_flag_in_section): Rename to shf_link_order. Update description.
testsuite:
* lib/target-supports.exp
(check_effective_target_o_flag_in_section): Remove.
* lib/et-static.def (shf_link_order): New effective target.
* g++.dg/pr93195a.C: Require shf_link_order.
* gcc.dg/pr110729.c: Likewise.
# HG changeset patch
# Parent 1db5c4cd26912a4dbdce0037644a394d445d09f3
build: testsuite: Provide link_order and initfini_array effective targets
diff --git a/gcc/config.in b/gcc/config.in
--- a/gcc/config.in
+++ b/gcc/config.in
@@ -1529,7 +1529,7 @@
#endif
-/* Define 0/1 if your assembler supports 'o' flag in .section directive. */
+/* Define 0/1 if your assembler and linker support SHF_LINK_ORDER. */
#ifndef USED_FOR_TARGET
#undef HAVE_GAS_SECTION_LINK_ORDER
#endif
diff --git a/gcc/configure.ac b/gcc/configure.ac
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -3790,7 +3790,7 @@ case "${target}" in
esac
AC_DEFINE_UNQUOTED(HAVE_GAS_SECTION_LINK_ORDER,
[`if test $gcc_cv_as_section_link_order = yes; then echo 1; else echo 0; fi`],
- [Define 0/1 if your assembler supports 'o' flag in .section directive.])
+ [Define 0/1 if your assembler and linker support SHF_LINK_ORDER.])
gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
[$fw_as_opt],
diff --git a/gcc/doc/sourcebuild.texi b/gcc/doc/sourcebuild.texi
--- a/gcc/doc/sourcebuild.texi
+++ b/gcc/doc/sourcebuild.texi
@@ -3141,9 +3141,6 @@ Target supports the @code{noinit} variab
@item nonpic
Target does not generate PIC by default.
-@item o_flag_in_section
-Target supports the 'o' flag in .section directive in assembly inputs.
-
@item offload_gcn
Target has been configured for OpenACC/OpenMP offloading on AMD GCN.
@@ -3179,6 +3176,9 @@ Target supports section anchors.
@item shf_gnu_retain
Target supports SHF_GNU_RETAIN sections.
+@item shf_link_order
+Target supports @code{SHF_LINK_ORDER}.
+
@item short_enums
Target defaults to short enums.
diff --git a/gcc/testsuite/g++.dg/pr93195a.C b/gcc/testsuite/g++.dg/pr93195a.C
--- a/gcc/testsuite/g++.dg/pr93195a.C
+++ b/gcc/testsuite/g++.dg/pr93195a.C
@@ -1,5 +1,5 @@
/* { dg-do link { target { ! { nvptx*-*-* visium-*-* } } } } */
-// { dg-require-effective-target o_flag_in_section }
+/* { dg-require-effective-target shf_link_order } */
/* { dg-options "-O0 -fpatchable-function-entry=1" } */
/* { dg-additional-options "-fno-pie" { target sparc*-*-* } } */
/* { dg-additional-sources pr93195b.C } */
diff --git a/gcc/testsuite/gcc.dg/pr110729.c b/gcc/testsuite/gcc.dg/pr110729.c
--- a/gcc/testsuite/gcc.dg/pr110729.c
+++ b/gcc/testsuite/gcc.dg/pr110729.c
@@ -1,5 +1,5 @@
/* { dg-do compile { target { ! { nvptx*-*-* visium-*-* } } } } */
-/* { dg-require-effective-target o_flag_in_section } */
+/* { dg-require-effective-target shf_link_order } */
/* { dg-options "-ffunction-sections -fpatchable-function-entry=2" } */
/* { dg-additional-options "-fno-pie" { target sparc*-*-* } } */
diff --git a/gcc/testsuite/lib/et-static.def b/gcc/testsuite/lib/et-static.def
--- a/gcc/testsuite/lib/et-static.def
+++ b/gcc/testsuite/lib/et-static.def
@@ -52,6 +52,10 @@ shf_gnu_retain
HAVE_GAS_SHF_GNU_RETAIN
this target supports SHF_GNU_RETAIN
+shf_link_order
+HAVE_GAS_SECTION_LINK_ORDER
+this target supports SHF_LINK_ORDER
+
sht_init_array
HAVE_INITFINI_ARRAY_SUPPORT
this target supports SHT_INIT_ARRAY
diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -14098,46 +14098,6 @@ proc check_effective_target_gnu_retain {
&& [check_effective_target_sht_init_array] } ]
}
-# Return 1 if this target supports 'o' flag in .section directive, 0
-# otherwise. Cache the result.
-
-proc check_effective_target_o_flag_in_section { } {
- global tool
- global GCC_UNDER_TEST
-
- # Need auto-host.h to check linker support.
- if { ![file exists ../../auto-host.h ] } {
- return 0
- }
-
- return [check_cached_effective_target o_flag_in_section {
-
- set src pie[pid].c
- set obj pie[pid].o
-
- set f [open $src "w"]
- puts $f "#include \"../../auto-host.h\""
- puts $f "#if HAVE_GAS_SECTION_LINK_ORDER == 0"
- puts $f "# error Assembler does not support 'o' flag in .section directive."
- puts $f "#endif"
- close $f
-
- verbose "check_effective_target_o_flag_in_section compiling testfile $src" 2
- set lines [${tool}_target_compile $src $obj object ""]
-
- file delete $src
- file delete $obj
-
- if [string match "" $lines] then {
- verbose "check_effective_target_o_flag_in_section testfile compilation passed" 2
- return 1
- } else {
- verbose "check_effective_target_o_flag_in_section testfile compilation failed" 2
- return 0
- }
- }]
-}
-
# Return 1 if LRA is supported. This must not be called (results in ERROR) for
# targets that don't do register allocation, and therefore neither use nor
# don't use LRA.
