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| author | H.J. Lu <hongjiu.lu@intel.com> | 2017-08-01 21:39:51 +0000 |
|---|---|---|
| committer | H.J. Lu <hjl@gcc.gnu.org> | 2017-08-01 14:39:51 -0700 |
| commit | 73380438c9c7ab188f5f21ee27da0f04f89d0417 (patch) | |
| tree | e2d2cc5fccc5e4e51d481559a0f463f40f4abd4f /gcc/testsuite/gcc.dg/guality | |
| parent | 760f74c21b5ed03631e598d015c5b95e8377ae27 (diff) | |
| download | gcc-73380438c9c7ab188f5f21ee27da0f04f89d0417.zip gcc-73380438c9c7ab188f5f21ee27da0f04f89d0417.tar.gz gcc-73380438c9c7ab188f5f21ee27da0f04f89d0417.tar.bz2 | |
i386: Add more naked attribute tests
Add some tests for implementing interrupt handlers with naked attribute
and without asm statements.
* gcc.dg/guality/pr25967-3.c: New test.
* gcc.dg/guality/pr25967-4.c: Likewise.
* gcc.dg/torture/pr25967-3.c: Likewise.
* gcc.dg/torture/pr25967-4.c: Likewise.
From-SVN: r250800
Diffstat (limited to 'gcc/testsuite/gcc.dg/guality')
| -rw-r--r-- | gcc/testsuite/gcc.dg/guality/pr25967-3.c | 70 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/guality/pr25967-4.c | 64 |
2 files changed, 134 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/guality/pr25967-3.c b/gcc/testsuite/gcc.dg/guality/pr25967-3.c new file mode 100644 index 0000000..0924d1c --- /dev/null +++ b/gcc/testsuite/gcc.dg/guality/pr25967-3.c @@ -0,0 +1,70 @@ +/* { dg-do run { target i?86-*-* x86_64-*-* } } */ +/* { dg-options "-g -mgeneral-regs-only" } */ + +extern void exit (int); + +typedef unsigned int uword_t __attribute__ ((mode (__word__))); + +#define ERROR 0x12345670 +#define IP 0x12345671 +#define CS 0x12345672 +#define FLAGS 0x12345673 +#define SP 0x12345674 +#define SS 0x12345675 + +#define STRING(x) XSTRING(x) +#define XSTRING(x) #x +#define ASMNAME(cname) ASMNAME2 (__USER_LABEL_PREFIX__, cname) +#define ASMNAME2(prefix, cname) XSTRING (prefix) cname + +struct interrupt_frame +{ + uword_t ip; + uword_t cs; + uword_t flags; + uword_t sp; + uword_t ss; +}; + +__attribute__((naked, used)) +void +fn (void) +{ + register uword_t *sp __asm__("sp"); + uword_t error = *sp; + struct interrupt_frame *frame = (struct interrupt_frame *) (sp + 1); + if (ERROR != error) /* BREAK */ + __builtin_abort (); + if (IP != frame->ip) + __builtin_abort (); + if (CS != frame->cs) + __builtin_abort (); + if (FLAGS != frame->flags) + __builtin_abort (); + if (SP != frame->sp) + __builtin_abort (); + if (SS != frame->ss) + __builtin_abort (); + + exit (0); +} + +int +main () +{ + asm ("push $" STRING (SS) "; \ + push $" STRING (SP) "; \ + push $" STRING (FLAGS) "; \ + push $" STRING (CS) "; \ + push $" STRING (IP) "; \ + push $" STRING (ERROR) "; \ + jmp " ASMNAME ("fn")); + return 0; +} + +/* { dg-final { gdb-test 36 "error" "0x12345670" } } */ +/* { dg-final { gdb-test 36 "frame->ip" "0x12345671" } } */ +/* { dg-final { gdb-test 36 "frame->cs" "0x12345672" } } */ +/* { dg-final { gdb-test 36 "frame->flags" "0x12345673" } } */ +/* { dg-final { gdb-test 36 "frame->sp" "0x12345674" } } */ +/* { dg-final { gdb-test 36 "frame->ss" "0x12345675" } } */ diff --git a/gcc/testsuite/gcc.dg/guality/pr25967-4.c b/gcc/testsuite/gcc.dg/guality/pr25967-4.c new file mode 100644 index 0000000..c3b59e2 --- /dev/null +++ b/gcc/testsuite/gcc.dg/guality/pr25967-4.c @@ -0,0 +1,64 @@ +/* { dg-do run { target i?86-*-* x86_64-*-* } } */ +/* { dg-options "-g -mgeneral-regs-only" } */ + +extern void exit (int); + +typedef unsigned int uword_t __attribute__ ((mode (__word__))); + +#define IP 0x12345671 +#define CS 0x12345672 +#define FLAGS 0x12345673 +#define SP 0x12345674 +#define SS 0x12345675 + +#define STRING(x) XSTRING(x) +#define XSTRING(x) #x +#define ASMNAME(cname) ASMNAME2 (__USER_LABEL_PREFIX__, cname) +#define ASMNAME2(prefix, cname) XSTRING (prefix) cname + +struct interrupt_frame +{ + uword_t ip; + uword_t cs; + uword_t flags; + uword_t sp; + uword_t ss; +}; + +__attribute__((naked, used)) +void +fn (void) +{ + register uword_t *sp __asm__("sp"); + struct interrupt_frame *frame = (struct interrupt_frame *) sp; + if (IP != frame->ip) /* BREAK */ + __builtin_abort (); + if (CS != frame->cs) + __builtin_abort (); + if (FLAGS != frame->flags) + __builtin_abort (); + if (SP != frame->sp) + __builtin_abort (); + if (SS != frame->ss) + __builtin_abort (); + + exit (0); +} + +int +main () +{ + asm ("push $" STRING (SS) "; \ + push $" STRING (SP) "; \ + push $" STRING (FLAGS) "; \ + push $" STRING (CS) "; \ + push $" STRING (IP) "; \ + jmp " ASMNAME ("fn")); + return 0; +} + +/* { dg-final { gdb-test 34 "frame->ip" "0x12345671" } } */ +/* { dg-final { gdb-test 34 "frame->cs" "0x12345672" } } */ +/* { dg-final { gdb-test 34 "frame->flags" "0x12345673" } } */ +/* { dg-final { gdb-test 34 "frame->sp" "0x12345674" } } */ +/* { dg-final { gdb-test 34 "frame->ss" "0x12345675" } } */ |