diff options
Diffstat (limited to 'gcc/config/alpha/alpha.h')
| -rw-r--r-- | gcc/config/alpha/alpha.h | 30 |
1 files changed, 4 insertions, 26 deletions
diff --git a/gcc/config/alpha/alpha.h b/gcc/config/alpha/alpha.h index 39b17351359..2bd93c3bb3b 100644 --- a/gcc/config/alpha/alpha.h +++ b/gcc/config/alpha/alpha.h @@ -1182,13 +1182,13 @@ extern void output_end_prologue (); aligned to FUNCTION_BOUNDARY, which is 64 bits. */ #define TRAMPOLINE_TEMPLATE(FILE) \ -{ \ +do { \ fprintf (FILE, "\tldq $1,24($27)\n"); \ fprintf (FILE, "\tldq $27,16($27)\n"); \ fprintf (FILE, "\tjmp $31,($27),0\n"); \ fprintf (FILE, "\tnop\n"); \ fprintf (FILE, "\t.quad 0,0\n"); \ -} +} while (0) /* Section in which to place the trampoline. On Alpha, instructions may only be placed in a text segment. */ @@ -1201,31 +1201,10 @@ extern void output_end_prologue (); /* Emit RTL insns to initialize the variable parts of a trampoline. FNADDR is an RTX for the address of the function's pure code. - CXT is an RTX for the static chain value for the function. We assume - here that a function will be called many more times than its address - is taken (e.g., it might be passed to qsort), so we take the trouble - to initialize the "hint" field in the JMP insn. Note that the hint - field is PC (new) + 4 * bits 13:0. */ + CXT is an RTX for the static chain value for the function. */ #define INITIALIZE_TRAMPOLINE(TRAMP, FNADDR, CXT) \ - alpha_initialize_trampoline (TRAMP, FNADDR, CXT) - -/* Attempt to turn on access permissions for the stack. */ - -#define TRANSFER_FROM_TRAMPOLINE \ -void \ -__enable_execute_stack (addr) \ - void *addr; \ -{ \ - long size = getpagesize (); \ - long mask = ~(size-1); \ - char *page = (char *) (((long) addr) & mask); \ - char *end = (char *) ((((long) (addr + TRAMPOLINE_SIZE)) & mask) + size); \ - \ - /* 7 is PROT_READ | PROT_WRITE | PROT_EXEC */ \ - if (mprotect (page, end - page, 7) < 0) \ - perror ("mprotect of trampoline code"); \ -} + alpha_initialize_trampoline (TRAMP, FNADDR, CXT, 16, 24, 8) /* A C expression whose value is RTL representing the value of the return address for the frame COUNT steps up from the current frame. @@ -1240,7 +1219,6 @@ extern struct rtx_def *alpha_return_addr (); #define INIT_EXPANDERS alpha_init_expanders () extern void alpha_init_expanders (); - /* Addressing modes, and classification of registers for them. */ |