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author | Richard Henderson <rth@redhat.com> | 2001-05-22 09:57:40 -0700 |
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committer | Richard Henderson <rth@gcc.gnu.org> | 2001-05-22 09:57:40 -0700 |
commit | 1066e2b58d90fb2bde0af778dd67136b41f067fc (patch) | |
tree | f3a57d110a686d95d437a43f194144c18a10751a /gcc/config | |
parent | eac8c4b0410083e16d48633b84aa1d61d44712c7 (diff) | |
download | gcc-1066e2b58d90fb2bde0af778dd67136b41f067fc.zip gcc-1066e2b58d90fb2bde0af778dd67136b41f067fc.tar.gz gcc-1066e2b58d90fb2bde0af778dd67136b41f067fc.tar.bz2 |
crtstuff.c (__register_frame_info_bases): Declare.
* crtstuff.c (__register_frame_info_bases): Declare.
(frame_dummy): Use it, if CRT_GET_RFIB_TEXT or CRT_GET_RFIB_DATA.
(__do_global_dtors_aux, __do_global_dtors): Streamline.
* config/i386/linux.h (ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX): New.
(CRT_GET_RFIB_DATA): New.
* config/i386/sysv4.h: Likewise.
* config/i386/sco5.h: Likewise.
(ASM_PREFERRED_EH_DATA_FORMAT): New.
From-SVN: r42453
Diffstat (limited to 'gcc/config')
-rw-r--r-- | gcc/config/i386/linux.h | 33 | ||||
-rw-r--r-- | gcc/config/i386/sco5.h | 41 | ||||
-rw-r--r-- | gcc/config/i386/sysv4.h | 33 |
3 files changed, 107 insertions, 0 deletions
diff --git a/gcc/config/i386/linux.h b/gcc/config/i386/linux.h index 108a6fb..c80a3fe 100644 --- a/gcc/config/i386/linux.h +++ b/gcc/config/i386/linux.h @@ -194,6 +194,39 @@ Boston, MA 02111-1307, USA. */ while (0) #endif +/* Handle special EH pointer encodings. Absolute, pc-relative, and + indirect are handled automatically. */ +#define ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX(FILE, ENCODING, SIZE, ADDR, DONE) \ + do { \ + if ((SIZE) == 4 && ((ENCODING) & 0x70) == DW_EH_PE_datarel) \ + { \ + fputs (UNALIGNED_INT_ASM_OP, FILE); \ + assemble_name (FILE, XSTR (ADDR, 0)); \ + fputs (((ENCODING) & DW_EH_PE_indirect ? "@GOT" : "@GOTOFF"), FILE); \ + goto DONE; \ + } \ + } while (0) + +/* Used by crtstuff.c to initialize the base of data-relative relocations. + These are GOT relative on x86, so return the pic register. */ +#ifdef __PIC__ +#define CRT_GET_RFIB_DATA(BASE) \ + { \ + register void *ebx_ __asm__("ebx"); \ + BASE = ebx_; \ + } +#else +#define CRT_GET_RFIB_DATA(BASE) \ + __asm__ ("call\t.LPR%=\n" \ + ".LPR%=:\n\t" \ + "popl\t%0\n\t" \ + /* Due to a GAS bug, this cannot use EAX. That encodes \ + smaller than the traditional EBX, which results in the \ + offset being off by one. */ \ + "addl\t$_GLOBAL_OFFSET_TABLE_+[.-.LPR%=],%0" \ + : "=d"(BASE)) +#endif + /* Do code reading to identify a signal frame, and set the frame state data appropriately. See unwind-dw2.c for the structs. */ diff --git a/gcc/config/i386/sco5.h b/gcc/config/i386/sco5.h index 33a512d..19cbcf1 100644 --- a/gcc/config/i386/sco5.h +++ b/gcc/config/i386/sco5.h @@ -951,3 +951,44 @@ do { \ } while (0) # endif /* ! _SCO_ELF */ #endif /* CRT_BEGIN !! CRT_END */ + +/* Handle special EH pointer encodings. Absolute, pc-relative, and + indirect are handled automatically. */ +#define ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX(FILE, ENCODING, SIZE, ADDR, DONE) \ + do { \ + if ((SIZE) == 4 && ((ENCODING) & 0x70) == DW_EH_PE_datarel) \ + { \ + fputs (UNALIGNED_INT_ASM_OP, FILE); \ + assemble_name (FILE, XSTR (ADDR, 0)); \ + fputs (((ENCODING) & DW_EH_PE_indirect ? "@GOT" : "@GOTOFF"), FILE); \ + goto DONE; \ + } \ + } while (0) + +/* Used by crtstuff.c to initialize the base of data-relative relocations. + These are GOT relative on x86, so return the pic register. */ +#ifdef __PIC__ +#define CRT_GET_RFIB_DATA(BASE) \ + { \ + register void *ebx_ __asm__("ebx"); \ + BASE = ebx_; \ + } +#else +#define CRT_GET_RFIB_DATA(BASE) \ + __asm__ ("call\t.LPR%=\n" \ + ".LPR%=:\n\t" \ + "popl\t%0\n\t" \ + /* Due to a GAS bug, this cannot use EAX. That encodes \ + smaller than the traditional EBX, which results in the \ + offset being off by one. */ \ + "addl\t$_GLOBAL_OFFSET_TABLE_+[.-.LPR%=],%0" \ + : "=d"(BASE)) +#endif + +/* Select a format to encode pointers in exception handling data. CODE + is 0 for data, 1 for code labels, 2 for function pointers. GLOBAL is + true if the symbol may be affected by dynamic relocations. */ +#undef ASM_PREFERRED_EH_DATA_FORMAT +#define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \ + (flag_pic ? (GLOBAL ? DW_EH_PE_indirect : 0) | DW_EH_PE_datarel \ + : DW_EH_PE_absptr) diff --git a/gcc/config/i386/sysv4.h b/gcc/config/i386/sysv4.h index a610188..f56d583 100644 --- a/gcc/config/i386/sysv4.h +++ b/gcc/config/i386/sysv4.h @@ -179,3 +179,36 @@ do { long value[3]; \ #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \ asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN) + +/* Handle special EH pointer encodings. Absolute, pc-relative, and + indirect are handled automatically. */ +#define ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX(FILE, ENCODING, SIZE, ADDR, DONE) \ + do { \ + if ((SIZE) == 4 && ((ENCODING) & 0x70) == DW_EH_PE_datarel) \ + { \ + fputs (UNALIGNED_INT_ASM_OP, FILE); \ + assemble_name (FILE, XSTR (ADDR, 0)); \ + fputs (((ENCODING) & DW_EH_PE_indirect ? "@GOT" : "@GOTOFF"), FILE); \ + goto DONE; \ + } \ + } while (0) + +/* Used by crtstuff.c to initialize the base of data-relative relocations. + These are GOT relative on x86, so return the pic register. */ +#ifdef __PIC__ +#define CRT_GET_RFIB_DATA(BASE) \ + { \ + register void *ebx_ __asm__("ebx"); \ + BASE = ebx_; \ + } +#else +#define CRT_GET_RFIB_DATA(BASE) \ + __asm__ ("call\t.LPR%=\n" \ + ".LPR%=:\n\t" \ + "popl\t%0\n\t" \ + /* Due to a GAS bug, this cannot use EAX. That encodes \ + smaller than the traditional EBX, which results in the \ + offset being off by one. */ \ + "addl\t$_GLOBAL_OFFSET_TABLE_+[.-.LPR%=],%0" \ + : "=d"(BASE)) +#endif |