diff options
Diffstat (limited to 'gcc/config/sparc/linux.h')
| -rw-r--r-- | gcc/config/sparc/linux.h | 84 |
1 files changed, 78 insertions, 6 deletions
diff --git a/gcc/config/sparc/linux.h b/gcc/config/sparc/linux.h index d46413339c1..b93b46cf46c 100644 --- a/gcc/config/sparc/linux.h +++ b/gcc/config/sparc/linux.h @@ -1,5 +1,5 @@ /* Definitions for SPARC running Linux-based GNU systems with ELF. - Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc. + Copyright (C) 1996, 1997, 1998, 1999, 2000, 2002 Free Software Foundation, Inc. Contributed by Eddie C. Dost (ecd@skynet.be) This file is part of GNU CC. @@ -62,7 +62,8 @@ Boston, MA 02111-1307, USA. */ #undef ENDFILE_SPEC #define ENDFILE_SPEC \ - "%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s" + "%{ffast-math|funsafe-math-optimizations:crtfastmath.o%s} \ + %{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s" /* This is for -profile to use -lc_p instead of -lc. */ #undef CC1_SPEC @@ -97,10 +98,8 @@ Boston, MA 02111-1307, USA. */ #undef WCHAR_TYPE_SIZE #define WCHAR_TYPE_SIZE 32 -#undef MAX_WCHAR_TYPE_SIZE - #undef CPP_PREDEFINES -#define CPP_PREDEFINES "-D__ELF__ -Dunix -D__sparc__ -Dlinux -Asystem=unix -Asystem=posix" +#define CPP_PREDEFINES "-D__ELF__ -Dunix -D__sparc__ -D__gnu_linux__ -Dlinux -Asystem=unix -Asystem=posix" #undef CPP_SUBTARGET_SPEC #ifdef USE_GNULIBC_1 @@ -186,7 +185,7 @@ Boston, MA 02111-1307, USA. */ #undef ASM_SPEC #define ASM_SPEC \ "%{V} %{v:%{!V:-V}} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Wa,*:%*} -s %{fpic:-K PIC} \ - %{fPIC:-K PIC} %(asm_relax)" + %{fPIC:-K PIC} %(asm_cpu) %(asm_relax)" /* Same as sparc.h */ #undef DBX_REGISTER_NUMBER @@ -204,6 +203,9 @@ do { \ #undef COMMON_ASM_OP #define COMMON_ASM_OP "\t.common\t" +#undef LOCAL_LABEL_PREFIX +#define LOCAL_LABEL_PREFIX "." + /* This is how to output a definition of an internal numbered label where PREFIX is the class of label and NUM is the number within the class. */ @@ -247,3 +249,73 @@ do { \ #define LINK_EH_SPEC "%{!static:--eh-frame-hdr} " #endif +/* Don't be different from other Linux platforms in this regard. */ +#define HANDLE_PRAGMA_PACK_PUSH_POP + +/* We use GNU ld so undefine this so that attribute((init_priority)) works. */ +#undef CTORS_SECTION_ASM_OP +#undef DTORS_SECTION_ASM_OP + +/* Do code reading to identify a signal frame, and set the frame + state data appropriately. See unwind-dw2.c for the structs. */ + +#define MD_FALLBACK_FRAME_STATE_FOR(CONTEXT, FS, SUCCESS) \ + do { \ + unsigned int *pc_ = (CONTEXT)->ra; \ + int new_cfa_, i_, oldstyle_; \ + int regs_off_, fpu_save_off_; \ + int fpu_save_, this_cfa_; \ + \ + if (pc_[1] != 0x91d02010) /* ta 0x10 */ \ + break; \ + if (pc_[0] == 0x821020d8) /* mov NR_sigreturn, %g1 */ \ + oldstyle_ = 1; \ + else if (pc_[0] == 0x82102065) /* mov NR_rt_sigreturn, %g1 */ \ + oldstyle_ = 0; \ + else \ + break; \ + if (oldstyle_) \ + { \ + regs_off_ = 96; \ + fpu_save_off_ = regs_off_ + (4 * 4) + (16 * 4); \ + } \ + else \ + { \ + regs_off_ = 96 + 128; \ + fpu_save_off_ = regs_off_ + (4 * 4) + (16 * 4) + (2 * 4); \ + } \ + this_cfa_ = (int) (CONTEXT)->cfa; \ + new_cfa_ = *(int *)(((CONTEXT)->cfa) + (regs_off_+(4*4)+(14 * 4))); \ + fpu_save_ = *(int *)((this_cfa_) + (fpu_save_off_)); \ + (FS)->cfa_how = CFA_REG_OFFSET; \ + (FS)->cfa_reg = 14; \ + (FS)->cfa_offset = new_cfa_ - (int) (CONTEXT)->cfa; \ + for (i_ = 1; i_ < 16; ++i_) \ + { \ + if (i_ == 14) \ + continue; \ + (FS)->regs.reg[i_].how = REG_SAVED_OFFSET; \ + (FS)->regs.reg[i_].loc.offset = \ + this_cfa_ + (regs_off_+(4 * 4)+(i_ * 4)) - new_cfa_; \ + } \ + for (i_ = 0; i_ < 16; ++i_) \ + { \ + (FS)->regs.reg[i_ + 16].how = REG_SAVED_OFFSET; \ + (FS)->regs.reg[i_ + 16].loc.offset = \ + this_cfa_ + (i_ * 4) - new_cfa_; \ + } \ + if (fpu_save_) \ + { \ + for (i_ = 0; i_ < 32; ++i_) \ + { \ + (FS)->regs.reg[i_ + 32].how = REG_SAVED_OFFSET; \ + (FS)->regs.reg[i_ + 32].loc.offset = \ + (fpu_save_ + (i_ * 4)) - new_cfa_; \ + } \ + } \ + /* Stick return address into %g0, same trick Alpha uses. */ \ + (FS)->regs.reg[0].how = REG_SAVED_OFFSET; \ + (FS)->regs.reg[0].loc.offset = this_cfa_+(regs_off_+4)-new_cfa_; \ + (FS)->retaddr_column = 0; \ + goto SUCCESS; \ + } while (0) |