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Ip=[4.158.2.129];\n Helo=[outbound-uk1.az.dlp.m.darktrace.com]","X-MS-Exchange-CrossTenant-AuthSource":"\n DB1PEPF00050A00.eurprd03.prod.outlook.com","X-MS-Exchange-CrossTenant-AuthAs":"Anonymous","X-MS-Exchange-CrossTenant-FromEntityHeader":"HybridOnPrem","X-BeenThere":"gcc-patches@gcc.gnu.org","X-Mailman-Version":"2.1.30","Precedence":"list","List-Id":"Gcc-patches mailing list ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org"},"content":"object-readelf in lib/lto.exp was hard-wired to use readelf -A,\nlimiting it to attribute checks. Extend it to accept a readelf option and\na regex, where the option selects the readelf flag and the regex is\nmatched against the output.\n\nAdd wrapper procedures for common use cases:\n\n\t• attribute checks, and\n\t• note checks.\n\nAlso add support for negative checks via an \"is-negative\" argument,\nwhich requires that the regex is not present in the output.\n\ngcc/ChangeLog:\n\n\t* doc/sourcebuild.texi (Scan object metadata with readelf): Document\n\tobject-readelf-attributes, object-readelf-attributes-not,\n\tobject-readelf-notes, and object-readelf-notes-not as regex-based\n\tchecks with optional target/xfail selectors.\n\ngcc/testsuite/ChangeLog:\n\n\t* lib/lto.exp (object-readelf): Accept a readelf option and a single\n\tregex; match against full readelf output. Keep positive/negative\n\tbehaviour via wrappers.\n\t(object-readelf-attributes, object-readelf-attributes-not,\n\tobject-readelf-notes, object-readelf-notes-not): Implement as wrappers\n\tover the generic matcher.\n\t* gcc.dg-selftests/dg-final.exp (dg_final_directive_check_num_args):\n\tUpdate for object-readelf-* wrappers to regex-style arguments (1..3).\n\t* gcc.target/arm/lto/pr61123-enum-size_0.c: Update to use\n\tobject-readelf-attributes with a single regex.\n---\n gcc/doc/sourcebuild.texi | 23 ++++++\n gcc/testsuite/gcc.dg-selftests/dg-final.exp | 5 +-\n .../gcc.target/arm/lto/pr61123-enum-size_0.c | 2 +-\n gcc/testsuite/lib/lto.exp | 77 ++++++++++---------\n 4 files changed, 68 insertions(+), 39 deletions(-)","diff":"diff --git a/gcc/doc/sourcebuild.texi b/gcc/doc/sourcebuild.texi\nindex 3bccb1384d9..958682907cb 100644\n--- a/gcc/doc/sourcebuild.texi\n+++ b/gcc/doc/sourcebuild.texi\n@@ -3729,6 +3729,29 @@ stands for zero or more unmatched lines; the whitespace after\n \n @end table\n \n+@subsubsection Scan object metadata with readelf\n+\n+These commands inspect the linked test output file with @command{readelf}.\n+They are mainly intended for LTO tests.\n+\n+These commands take a single @var{regex} and test whether it is present\n+in (or absent from, for @samp{-not}) the corresponding @command{readelf}\n+output.\n+\n+@table @code\n+@item object-readelf-attributes @var{regex} [@{ target/xfail @var{selector} @}]\n+Runs @command{readelf -A} and checks that @var{regex} matches.\n+\n+@item object-readelf-attributes-not @var{regex} [@{ target/xfail @var{selector} @}]\n+Runs @command{readelf -A} and checks that @var{regex} does not match.\n+\n+@item object-readelf-notes @var{regex} [@{ target/xfail @var{selector} @}]\n+Runs @command{readelf -n} and checks that @var{regex} matches.\n+\n+@item object-readelf-notes-not @var{regex} [@{ target/xfail @var{selector} @}]\n+Runs @command{readelf -n} and checks that @var{regex} does not match.\n+@end table\n+\n @subsubsection Scan optimization dump files\n \n These commands are available for @var{kind} of @code{tree}, @code{ltrans-tree},\ndiff --git a/gcc/testsuite/gcc.dg-selftests/dg-final.exp b/gcc/testsuite/gcc.dg-selftests/dg-final.exp\nindex 6dcfd3340a8..ff8fdf6d77a 100644\n--- a/gcc/testsuite/gcc.dg-selftests/dg-final.exp\n+++ b/gcc/testsuite/gcc.dg-selftests/dg-final.exp\n@@ -94,7 +94,10 @@ proc dg_final_directive_check_num_args {} {\n \n verify_args scan-lang-dump 2 3\n \n- verify_args object-readelf 2 3\n+ verify_args object-readelf-attributes 1 3\n+ verify_args object-readelf-attributes-not 1 3\n+ verify_args object-readelf-notes 1 3\n+ verify_args object-readelf-notes-not 1 3\n \n verify_args scan-assembler-times 2 3\n verify_args scan-assembler-dem 1 2\ndiff --git a/gcc/testsuite/gcc.target/arm/lto/pr61123-enum-size_0.c b/gcc/testsuite/gcc.target/arm/lto/pr61123-enum-size_0.c\nindex 4ccbeb39f43..36013040cdf 100644\n--- a/gcc/testsuite/gcc.target/arm/lto/pr61123-enum-size_0.c\n+++ b/gcc/testsuite/gcc.target/arm/lto/pr61123-enum-size_0.c\n@@ -20,4 +20,4 @@ foo1 (struct debug_ABI_enum_size *x)\n return sizeof (x->es);\n }\n \n-/* { dg-final { object-readelf Tag_ABI_enum_size int { target arm_eabi } } } */\n+/* { dg-final { object-readelf-attributes {Tag_ABI_enum_size:\\s+int} { target arm_eabi } } } */\ndiff --git a/gcc/testsuite/lib/lto.exp b/gcc/testsuite/lib/lto.exp\nindex 2a7b8b0de93..b36ccded5d6 100644\n--- a/gcc/testsuite/lib/lto.exp\n+++ b/gcc/testsuite/lib/lto.exp\n@@ -915,23 +915,21 @@ proc lto-execute { src1 sid } {\n initialize_prune_notes\n }\n \n-# Call pass if object readelf is ok, otherwise fail.\n-# example: /* { dg-final { object-readelf Tag_ABI_enum_size int} } */\n-proc object-readelf { args } {\n+proc object-readelf { option is_negative directive args } {\n global readelf\n global base_dir\n- upvar 2 execname execname\n+ upvar 3 execname execname\n \n- if { [llength $args] < 2 } {\n-\terror \"object-readelf: too few arguments\"\n+ if { [llength $args] < 1 } {\n+\terror \"$directive: too few arguments\"\n \treturn\n }\n- if { [llength $args] > 3 } {\n-\terror \"object-readelf: too many arguments\"\n+ if { [llength $args] > 2 } {\n+\terror \"$directive: too many arguments\"\n \treturn\n }\n- if { [llength $args] >= 3 } {\n-\tswitch [dg-process-target [lindex $args 2]] {\n+ if { [llength $args] >= 2 } {\n+\tswitch [dg-process-target [lindex $args 1]] {\n \t \"S\" { }\n \t \"N\" { return }\n \t \"F\" { setup_xfail \"*-*-*\" }\n@@ -939,7 +937,7 @@ proc object-readelf { args } {\n \t}\n }\n \n- # Find size like we find g++ in g++.exp.\n+ # Find readelf like we find g++ in g++.exp.\n if ![info exists readelf] {\n \tset readelf [findfile $base_dir/../../../binutils/readelf \\\n \t\t$base_dir/../../../binutils/readelf \\\n@@ -949,47 +947,52 @@ proc object-readelf { args } {\n \tverbose -log \"readelf is $readelf\"\n }\n \n- set what [lindex $args 0]\n- set with [lindex $args 1]\n+ set regex [lindex $args 0]\n \n if ![file_on_host exists $execname] {\n \tverbose -log \"$execname does not exist\"\n-\tunresolved \"object-readelf $what \"\n+\tunresolved \"$directive $regex \"\n \treturn\n }\n \n- set output [remote_exec host \"$readelf -A\" \"$execname\"]\n+ set output [remote_exec host \"$readelf $option\" \"$execname\"]\n set status [lindex $output 0]\n if { $status != 0 } {\n-\tverbose -log \"object-readelf: $readelf failed\"\n-\tunresolved \"object-readelf $what $execname\"\n+\tverbose -log \"$directive: $readelf failed\"\n+\tunresolved \"$directive $regex $execname\"\n \treturn\n }\n \n set text [lindex $output 1]\n- set lines [split $text \"\\n\"]\n+ set match [regexp -- $regex $text]\n \n- set done 0\n- set i 0\n- while { !$done } {\n-\tset line_tex [lindex $lines $i]\n-\tif { [llength ${line_tex}] > 1} {\n-\t incr i\n-\t if [regexp -- $what $line_tex] {\n-\t set match [regexp -- $with $line_tex]\n-\t\tset done 1\n-\t }\n-\t} else {\n-\t set done 1\n-\t}\n- }\n-\n- verbose -log \"$what size is $with;\"\n- if { $match == 1 } {\n-\tpass \"object-readelf $what size is correct.\"\n+ if { ($is_negative && $match == 0) || (!$is_negative && $match == 1) } {\n+\tpass \"$directive $regex pattern is correct.\"\n } else {\n-\tfail \"object-readelf $what size is incorrect.\"\n+\tfail \"$directive $regex pattern is incorrect.\"\n }\n }\n \n+# Call pass if regex ($args 0) matches readelf -A output, otherwise fail.\n+# example: /* { dg-final { object-readelf-attributes {Tag_ABI_enum_size:\\s+int} } } */\n+proc object-readelf-attributes { args } {\n+ object-readelf \"-A\" 0 object-readelf-attributes {*}$args\n+}\n+\n+# Call pass if regex ($args 0) does not match readelf -A output, otherwise fail.\n+# example: /* { dg-final { object-readelf-attributes {Tag_ABI_enum_size:\\s+int} } } */\n+proc object-readelf-attributes-not { args } {\n+ object-readelf \"-A\" 1 object-readelf-attributes-not {*}$args\n+}\n \n+# Call pass if regex ($args 0) matches readelf -n output, otherwise fail.\n+# example: /* { dg-final { object-readelf-notes {AArch64 feature:\\s+BTI,\\s+PAC,\\s+GCS} } } */\n+proc object-readelf-notes { args } {\n+ object-readelf \"-n\" 0 object-readelf-notes {*}$args\n+}\n+\n+# Call pass if regex ($args 0) does not match readelf -n output, otherwise fail.\n+# example: /* { dg-final { object-readelf-notes-not {AArch64 feature:\\s+BTI,\\s+PAC,\\s+GCS} } } */\n+proc object-readelf-notes-not { args } {\n+ object-readelf \"-n\" 1 object-readelf-notes-not {*}$args\n+}\n","prefixes":["1/2"]}