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| author | Daniel Jacobowitz <dan@codesourcery.com> | 2005-11-15 14:32:13 +0000 |
|---|---|---|
| committer | Daniel Jacobowitz <drow@gcc.gnu.org> | 2005-11-15 14:32:13 +0000 |
| commit | 5d7c0add81c2d9ff338e76bf58dce99f9a0410e8 (patch) | |
| tree | 0cc5b87b3f2c8c3b76db1833ac1ac21ab542efaa | |
| parent | 9de61fcb9b63fabbe305dab069bf49d8d1e6195a (diff) | |
| download | gcc-5d7c0add81c2d9ff338e76bf58dce99f9a0410e8.zip gcc-5d7c0add81c2d9ff338e76bf58dce99f9a0410e8.tar.gz gcc-5d7c0add81c2d9ff338e76bf58dce99f9a0410e8.tar.bz2 | |
lib1funcs.asm (div0): Call raise instead of making syscalls.
* config/arm/lib1funcs.asm (div0) [L_dvmd_lnx]: Call raise instead
of making syscalls.
* config/arm/linux-eabi.h (CLEAR_INSN_CACHE): Define. Set r7 also.
From-SVN: r107018
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/config/arm/lib1funcs.asm | 20 | ||||
| -rw-r--r-- | gcc/config/arm/linux-eabi.h | 17 |
3 files changed, 25 insertions, 18 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 6515936..f2b22fa 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2005-11-15 Daniel Jacobowitz <dan@codesourcery.com> + + * config/arm/lib1funcs.asm (div0) [L_dvmd_lnx]: Call raise instead + of making syscalls. + * config/arm/linux-eabi.h (CLEAR_INSN_CACHE): Define. Set r7 also. + 2005-11-15 Jan Hubicka <jh@suse.cz> * invoke.texi (large-unit-insns): Document. diff --git a/gcc/config/arm/lib1funcs.asm b/gcc/config/arm/lib1funcs.asm index 364d9fe..8494a97 100644 --- a/gcc/config/arm/lib1funcs.asm +++ b/gcc/config/arm/lib1funcs.asm @@ -989,29 +989,15 @@ LSYM(Lover12): #ifdef L_dvmd_lnx @ GNU/Linux division-by zero handler. Used in place of L_dvmd_tls -/* Constants taken from <asm/unistd.h> and <asm/signal.h> */ +/* Constant taken from <asm/signal.h>. */ #define SIGFPE 8 -#define __NR_SYSCALL_BASE 0x900000 -#define __NR_getpid (__NR_SYSCALL_BASE+ 20) -#define __NR_kill (__NR_SYSCALL_BASE+ 37) -#define __NR_gettid (__NR_SYSCALL_BASE+ 224) -#define __NR_tkill (__NR_SYSCALL_BASE+ 238) .code 32 FUNC_START div0 stmfd sp!, {r1, lr} - swi __NR_gettid - cmn r0, #1000 - swihs __NR_getpid - cmnhs r0, #1000 - RETLDM r1 hs - mov ip, r0 - mov r1, #SIGFPE - swi __NR_tkill - movs r0, r0 - movne r0, ip - swine __NR_kill + mov r0, #SIGFPE + bl SYM(raise) __PLT__ RETLDM r1 FUNC_END div0 diff --git a/gcc/config/arm/linux-eabi.h b/gcc/config/arm/linux-eabi.h index 62aa6dd..6cd0989 100644 --- a/gcc/config/arm/linux-eabi.h +++ b/gcc/config/arm/linux-eabi.h @@ -1,5 +1,5 @@ /* Configuration file for ARM GNU/Linux EABI targets. - Copyright (C) 2004 + Copyright (C) 2004, 2005 Free Software Foundation, Inc. Contributed by CodeSourcery, LLC @@ -68,3 +68,18 @@ non-AAPCS. */ #undef WCHAR_TYPE #define WCHAR_TYPE (TARGET_AAPCS_BASED ? "unsigned int" : "long int") + +/* Clear the instruction cache from `beg' to `end'. This makes an + inline system call to SYS_cacheflush. It is modified to work with + both the original and EABI-only syscall interfaces. */ +#undef CLEAR_INSN_CACHE +#define CLEAR_INSN_CACHE(BEG, END) \ +{ \ + register unsigned long _beg __asm ("a1") = (unsigned long) (BEG); \ + register unsigned long _end __asm ("a2") = (unsigned long) (END); \ + register unsigned long _flg __asm ("a3") = 0; \ + register unsigned long _scno __asm ("r7") = 0xf0002; \ + __asm __volatile ("swi 0x9f0002 @ sys_cacheflush" \ + : "=r" (_beg) \ + : "0" (_beg), "r" (_end), "r" (_flg), "r" (_scno)); \ +} |