[gdb/testsuite] Fix gdb.python/py-objfile.exp with gcc 15

When running test-case gdb.python/py-objfile.exp with gcc 15, we get:
...
(gdb) p main^M
$2 = {int (void)} 0x40066c <main>^M
(gdb) FAIL: $exp: print main with debug info
...

The source file declares main as "int main ()"
...
and until C23 this meant a non-prototype function declaration and we'd have:
...
(gdb) p main^M
$2 = {int ()} 0x40066c <main>^M
...

However, starting C23 "int main ()" is simply equivalent to "int main (void)".

Fix this by:
- declaring main as "int main (void)" in the test-case, and
- updating the regexp to expect an "int (void)" prototype.

Likewise in gdb.base/jit-bfd-name.exp.

Tested on aarch64-linux.

Approved-By: Tom Tromey <tom@tromey.com>
PR testsuite/32756
Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=32756

diff --git a/gdb/testsuite/gdb.base/jit-bfd-name.exp b/gdb/testsuite/gdb.base/jit-bfd-name.exp
index 9e4daa14759922af29ac4b4632968195032373e6..219929b3f2f9efdc9618cc5ceb05b16da2014456 100644 (file)
--- a/gdb/testsuite/gdb.base/jit-bfd-name.exp
+++ b/gdb/testsuite/gdb.base/jit-bfd-name.exp
@@ -67,11 +67,13 @@ gdb_breakpoint [gdb_get_line_number "break here 1" $::main_srcfile]
 gdb_continue_to_breakpoint "break here 1"
 
 # Confirm that the two expected functions are available.
+set re_f1 [string_to_regexp "int jit_function_0001(void)"]
+set re_f2 [string_to_regexp "int jit_function_0002(void)"]
 gdb_test "info function ^jit_function" \
     [multi_line \
         "File \[^\r\n\]+jit-elf-solib.c:" \
-        "${decimal}:\\s+int jit_function_0001\\(\\);" \
-        "${decimal}:\\s+int jit_function_0002\\(\\);"]
+        "${decimal}:\\s+$re_f1;" \
+        "${decimal}:\\s+$re_f2;"]
 
 # Capture the addresses of each JIT symfile.
 set symfile_addrs {}

diff --git a/gdb/testsuite/gdb.base/jit-elf-solib.c b/gdb/testsuite/gdb.base/jit-elf-solib.c
index 690d7a01770bb9fa707330f377bf5c6adc2da37f..c6fcb89f45e5cca968e301c0770e0f301dc0a1ed 100644 (file)
--- a/gdb/testsuite/gdb.base/jit-elf-solib.c
+++ b/gdb/testsuite/gdb.base/jit-elf-solib.c
@@ -22,4 +22,4 @@
 #error "Must define the FUNCTION_NAME macro to set a jited function name"
 #endif
 
-int FUNCTION_NAME() { return 42; }
+int FUNCTION_NAME(void) { return 42; }

diff --git a/gdb/testsuite/gdb.python/py-objfile.c b/gdb/testsuite/gdb.python/py-objfile.c
index fe68671338a05c700f039dde5fbf44ca4533cadd..d721e0cd8e9302021f7b494a76e3e2559c0f240b 100644 (file)
--- a/gdb/testsuite/gdb.python/py-objfile.c
+++ b/gdb/testsuite/gdb.python/py-objfile.c
@@ -19,7 +19,7 @@ int global_var = 42;
 static int __attribute__ ((used)) static_var = 50;
 
 int
-main ()
+main (void)
 {
   int some_var = 0;
   return 0;

diff --git a/gdb/testsuite/gdb.python/py-objfile.exp b/gdb/testsuite/gdb.python/py-objfile.exp
index d14eec6935af7cc9ed72cee8cacdc4a6528b3397..8d1102896fa7d96cb43756faac6680b3845b16b3 100644 (file)
--- a/gdb/testsuite/gdb.python/py-objfile.exp
+++ b/gdb/testsuite/gdb.python/py-objfile.exp
@@ -144,7 +144,8 @@ gdb_test "python print (sep_objfile.owner.filename)" "${testfile}2" \
 gdb_test "python print (sep_objfile.owner.username)" "${testfile}2" \
     "Test user-name of owner of separate debug file"
 
-gdb_test "p main" "= {int \\(\\)} $hex <main>" \
+set re_prototype [string_to_regexp "int (void)"]
+gdb_test "p main" "= {$re_prototype} $hex <main>" \
     "print main with debug info"
 
 # Separate debug files are not findable.