Add some tests for implementing interrupt handlers with naked attribute. OK for trunk?
H.J. --- * gcc.dg/guality/pr25967-1.c: New test. * gcc.dg/guality/pr25967-2.c: Likewise. * gcc.dg/torture/pr25967-1.c: Likewise. * gcc.dg/torture/pr25967-2.c: Likewise. --- gcc/testsuite/gcc.dg/guality/pr25967-1.c | 79 ++++++++++++++++++++++++++++++++ gcc/testsuite/gcc.dg/guality/pr25967-2.c | 72 +++++++++++++++++++++++++++++ gcc/testsuite/gcc.dg/torture/pr25967-1.c | 72 +++++++++++++++++++++++++++++ gcc/testsuite/gcc.dg/torture/pr25967-2.c | 66 ++++++++++++++++++++++++++ 4 files changed, 289 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/guality/pr25967-1.c create mode 100644 gcc/testsuite/gcc.dg/guality/pr25967-2.c create mode 100644 gcc/testsuite/gcc.dg/torture/pr25967-1.c create mode 100644 gcc/testsuite/gcc.dg/torture/pr25967-2.c diff --git a/gcc/testsuite/gcc.dg/guality/pr25967-1.c b/gcc/testsuite/gcc.dg/guality/pr25967-1.c new file mode 100644 index 00000000000..1100aa638a4 --- /dev/null +++ b/gcc/testsuite/gcc.dg/guality/pr25967-1.c @@ -0,0 +1,79 @@ +/* { 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 + +#ifdef __x86_64__ +# define STACK_POINTER "rsp" +# define WORD_SIZE "8" +#else +# define STACK_POINTER "esp" +# define WORD_SIZE "4" +#endif + +#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) +{ + struct interrupt_frame *frame; + uword_t error; + asm ("lea " WORD_SIZE "(%%" STACK_POINTER "), %0" : "=r" (frame) : ); + asm ("mov (%%" STACK_POINTER "), %0" : "=r" (error) : ); + 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 45 "error" "0x12345670" } } */ +/* { dg-final { gdb-test 45 "frame->ip" "0x12345671" } } */ +/* { dg-final { gdb-test 45 "frame->cs" "0x12345672" } } */ +/* { dg-final { gdb-test 45 "frame->flags" "0x12345673" } } */ +/* { dg-final { gdb-test 45 "frame->sp" "0x12345674" } } */ +/* { dg-final { gdb-test 45 "frame->ss" "0x12345675" } } */ diff --git a/gcc/testsuite/gcc.dg/guality/pr25967-2.c b/gcc/testsuite/gcc.dg/guality/pr25967-2.c new file mode 100644 index 00000000000..dde31e82d43 --- /dev/null +++ b/gcc/testsuite/gcc.dg/guality/pr25967-2.c @@ -0,0 +1,72 @@ +/* { 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 + +#ifdef __x86_64__ +# define STACK_POINTER "rsp" +# define WORD_SIZE "8" +#else +# define STACK_POINTER "esp" +# define WORD_SIZE "4" +#endif + +#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) +{ + struct interrupt_frame *frame; + asm ("lea (%%" STACK_POINTER "), %0" : "=r" (frame) : ); + 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 42 "frame->ip" "0x12345671" } } */ +/* { dg-final { gdb-test 42 "frame->cs" "0x12345672" } } */ +/* { dg-final { gdb-test 42 "frame->flags" "0x12345673" } } */ +/* { dg-final { gdb-test 42 "frame->sp" "0x12345674" } } */ +/* { dg-final { gdb-test 42 "frame->ss" "0x12345675" } } */ diff --git a/gcc/testsuite/gcc.dg/torture/pr25967-1.c b/gcc/testsuite/gcc.dg/torture/pr25967-1.c new file mode 100644 index 00000000000..356c3334960 --- /dev/null +++ b/gcc/testsuite/gcc.dg/torture/pr25967-1.c @@ -0,0 +1,72 @@ +/* { dg-do run { target i?86-*-* x86_64-*-* } } */ +/* { dg-options "-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 + +#ifdef __x86_64__ +# define STACK_POINTER "rsp" +# define WORD_SIZE "8" +#else +# define STACK_POINTER "esp" +# define WORD_SIZE "4" +#endif + +#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) +{ + struct interrupt_frame *frame; + uword_t error; + asm ("lea " WORD_SIZE "(%%" STACK_POINTER "), %0" : "=r" (frame) : ); + asm ("mov (%%" STACK_POINTER "), %0" : "=r" (error) : ); + if (ERROR != error) + __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; +} diff --git a/gcc/testsuite/gcc.dg/torture/pr25967-2.c b/gcc/testsuite/gcc.dg/torture/pr25967-2.c new file mode 100644 index 00000000000..2e51c7361d7 --- /dev/null +++ b/gcc/testsuite/gcc.dg/torture/pr25967-2.c @@ -0,0 +1,66 @@ +/* { dg-do run { target i?86-*-* x86_64-*-* } } */ +/* { dg-options "-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 + +#ifdef __x86_64__ +# define STACK_POINTER "rsp" +# define WORD_SIZE "8" +#else +# define STACK_POINTER "esp" +# define WORD_SIZE "4" +#endif + +#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) +{ + struct interrupt_frame *frame; + asm ("lea (%%" STACK_POINTER "), %0" : "=r" (frame) : ); + 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) "; \ + jmp " ASMNAME ("fn")); + return 0; +} -- 2.13.3