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[Bug gdb/12790] New: GDB is unable to do inf-call of vararg of type_Complex on x86_64-linux
- From: "qiyao at gcc dot gnu.org" <sourceware-bugzilla at sourceware dot org>
- To: gdb-prs at sourceware dot org
- Date: Fri, 20 May 2011 14:04:27 +0000
- Subject: [Bug gdb/12790] New: GDB is unable to do inf-call of vararg of type_Complex on x86_64-linux
- Auto-submitted: auto-generated
http://sourceware.org/bugzilla/show_bug.cgi?id=12790
Summary: GDB is unable to do inf-call of vararg of type
_Complex on x86_64-linux
Product: gdb
Version: HEAD
Status: NEW
Severity: normal
Priority: P2
Component: gdb
AssignedTo: unassigned@sourceware.org
ReportedBy: qiyao@gcc.gnu.org
Created attachment 5741
--> http://sourceware.org/bugzilla/attachment.cgi?id=5741
test case
GDB on x86_64-linux is unable to handl inf-call of vararg function of parameter
type _Complex. Here are the steps to reproduce.
$ gcc -g complex.c -o complex
$ ./gdb/gdb complex
...
(gdb) b main
(gdb) run
Starting program: /scratch/yao/gdb_cvs/build-x86_64/complex
Breakpoint 1, main () at ../../complex.c:25
25 return 0;
(gdb) print find_max_float_real(4, fc1, fc2, fc3, fc4)
During symbol reading, incomplete CFI data; unspecified registers (e.g., rax)
at 0x40044c.
$1 = 0 + 0 * I <-- wrong result.
(gdb) print find_max_double_real(4, dc1, dc2, dc3, dc4)
$2 = 0 + 0 * I <-- wrong result.
(gdb) print find_max_long_double_real(4, ldc1, ldc2, ldc3, ldc4)
../../src/gdb/amd64-tdep.c:622: internal-error: amd64_return_value: Assertion
`len <= 16' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Quit this debugging session? (y or n) n
../../src/gdb/amd64-tdep.c:622: internal-error: amd64_return_value: Assertion
`len <= 16' failed.
A problem internal to GDB has been detected,
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