diff options
-rw-r--r-- | gcc/config/i386/i386.cc | 15 | ||||
-rw-r--r-- | gcc/testsuite/gcc.target/i386/pr83782-1.c | 8 | ||||
-rw-r--r-- | gcc/testsuite/gcc.target/i386/pr83782-2.c | 4 | ||||
-rw-r--r-- | gcc/testsuite/gcc.target/i386/pr83782-3.c | 32 |
4 files changed, 50 insertions, 9 deletions
diff --git a/gcc/config/i386/i386.cc b/gcc/config/i386/i386.cc index e03f86d..5e30dc8 100644 --- a/gcc/config/i386/i386.cc +++ b/gcc/config/i386/i386.cc @@ -16070,6 +16070,19 @@ ix86_call_use_plt_p (rtx call_op) return true; } +/* Implement TARGET_IFUNC_REF_LOCAL_OK. If this hook returns true, + the PLT entry will be used as the function address for local IFUNC + functions. When the PIC register is needed for PLT call, indirect + call via the PLT entry will fail since the PIC register may not be + set up properly for indirect call. In this case, we should return + false. */ + +static bool +ix86_ifunc_ref_local_ok (void) +{ + return !flag_pic || (TARGET_64BIT && ix86_cmodel != CM_LARGE_PIC); +} + /* Return true if the function being called was marked with attribute "noplt" or using -fno-plt and we are compiling for non-PIC. We need to handle the non-PIC case in the backend because there is no easy @@ -24953,7 +24966,7 @@ ix86_libgcc_floating_mode_supported_p ix86_get_multilib_abi_name #undef TARGET_IFUNC_REF_LOCAL_OK -#define TARGET_IFUNC_REF_LOCAL_OK hook_bool_void_true +#define TARGET_IFUNC_REF_LOCAL_OK ix86_ifunc_ref_local_ok #if !TARGET_MACHO && !TARGET_DLLIMPORT_DECL_ATTRIBUTES # undef TARGET_ASM_RELOC_RW_MASK diff --git a/gcc/testsuite/gcc.target/i386/pr83782-1.c b/gcc/testsuite/gcc.target/i386/pr83782-1.c index ce97b12..8567434 100644 --- a/gcc/testsuite/gcc.target/i386/pr83782-1.c +++ b/gcc/testsuite/gcc.target/i386/pr83782-1.c @@ -1,4 +1,4 @@ -/* { dg-do compile } */ +/* { dg-do compile { target { ! ia32 } } } */ /* { dg-require-ifunc "" } */ /* { dg-options "-O2 -fpic" } */ @@ -20,7 +20,5 @@ bar(void) return foo; } -/* { dg-final { scan-assembler {leal[ \t]foo@GOTOFF\(%[^,]*\),[ \t]%eax} { target ia32 } } } */ -/* { dg-final { scan-assembler {lea(?:l|q)[ \t]foo\(%rip\),[ \t]%(?:e|r)ax} { target { ! ia32 } } } } */ -/* { dg-final { scan-assembler-not "foo@GOT\\\(" { target ia32 } } } */ -/* { dg-final { scan-assembler-not "foo@GOTPCREL\\\(" { target { ! ia32 } } } } */ +/* { dg-final { scan-assembler {lea(?:l|q)[ \t]foo\(%rip\),[ \t]%(?:e|r)ax} } } */ +/* { dg-final { scan-assembler-not "foo@GOTPCREL\\\(" } } */ diff --git a/gcc/testsuite/gcc.target/i386/pr83782-2.c b/gcc/testsuite/gcc.target/i386/pr83782-2.c index e25d258..a654ded 100644 --- a/gcc/testsuite/gcc.target/i386/pr83782-2.c +++ b/gcc/testsuite/gcc.target/i386/pr83782-2.c @@ -1,4 +1,4 @@ -/* { dg-do compile } */ +/* { dg-do compile { target { ! ia32 } } } */ /* { dg-require-ifunc "" } */ /* { dg-options "-O2 -fpic" } */ @@ -20,7 +20,5 @@ bar(void) return foo; } -/* { dg-final { scan-assembler {leal[ \t]foo@GOTOFF\(%[^,]*\),[ \t]%eax} { target ia32 } } } */ /* { dg-final { scan-assembler {lea(?:l|q)[ \t]foo\(%rip\),[ \t]%(?:e|r)ax} { target { ! ia32 } } } } */ -/* { dg-final { scan-assembler-not "foo@GOT\\\(" { target ia32 } } } */ /* { dg-final { scan-assembler-not "foo@GOTPCREL\\\(" { target { ! ia32 } } } } */ diff --git a/gcc/testsuite/gcc.target/i386/pr83782-3.c b/gcc/testsuite/gcc.target/i386/pr83782-3.c new file mode 100644 index 0000000..1536481 --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/pr83782-3.c @@ -0,0 +1,32 @@ +/* { dg-do run } */ +/* { dg-require-ifunc "" } */ +/* { dg-require-effective-target pie } */ +/* { dg-options "-fpie -pie" } */ + +#include <stdio.h> + +static int __attribute__((noinline)) +implementation (void) +{ + printf ("'ere I am JH\n"); + return 0; +} + +static __typeof__ (implementation) *resolver (void) +{ + return (void *)implementation; +} + +extern int magic (void) __attribute__ ((ifunc ("resolver"))); + +__attribute__ ((weak)) +int +call_magic (int (*ptr) (void)) +{ + return ptr (); +} + +int main () +{ + return call_magic (magic); +} |