Add code to print rs6000 specific info in .s file; make eabi.asm assemble on Solaris
From-SVN: r12123
This commit is contained in:
Michael Meissner
parent
802a0058bd
commit
3cfa490985
@ -105,10 +105,18 @@
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.long 0
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.text
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#ifdef _RELOCATABLE
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.Lptr:
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.long .LCTOC1-.Laddr /* PC relative pointer to .got2 */
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#endif
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FUNC_START(__eabi)
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/* Eliminate -mrelocatable code if not -mrelocatable, so that this file can
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be assembled with other assemblers than GAS, such as the Solaris PowerPC
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assembler. */
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#ifdef _RELOCATABLE
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mflr 0
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bl .Laddr /* get current address */
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.Laddr:
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@ -120,6 +128,13 @@ FUNC_START(__eabi)
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subf. 12,12,11 /* calculate difference */
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mtlr 0 /* restore link register */
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lwzx 9,10,12 /* done flag */
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#else /* !-mrelocatable */
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addis 11,0,.LCTOC1@ha /* load address of .LCTOC1 */
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addi 11,11,.LCTOC1@l
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lwz 10,.Linit(11) /* init flag */
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#endif /* !-mrelocatable */
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cmplwi 2,9,0 /* init flag != 0? */
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bnelr 2 /* return now, if we've been called already */
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stwx 1,10,12 /* store a non-zero value in the done flag */
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@ -145,9 +160,11 @@ FUNC_START(__eabi)
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lwz 2,.Lsda2(11) /* load r2 with _SDA2_BASE address */
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b FUNC_NAME(__do_global_ctors) /* do any C++ global constructors (which returns to caller) */
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.Lreloc:
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#ifdef _RELOCATABLE
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/* We need to relocate the .got2 pointers. Don't load registers 2 or 13 */
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.Lreloc:
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lwz 3,.Lgot2s(11) /* GOT pointers start */
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lwz 4,.Lgot2e(11) /* GOT pointers end */
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add 3,12,3 /* adjust pointers */
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@ -237,6 +254,7 @@ FUNC_START(__eabi)
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addi 3,3,4 /* bump to next word */
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cmpw 1,3,4 /* more pointers to adjust? */
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bc 4,6,.Lfloop
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#endif /* _RELOCATABLE */
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/* Done adjusting pointers, return */
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@ -295,6 +295,55 @@ rs6000_override_options (default_cpu)
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SUBTARGET_OVERRIDE_OPTIONS;
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#endif
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}
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/* Do anything needed at the start of the asm file. */
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void
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rs6000_file_start (file, default_cpu)
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FILE *file;
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char *default_cpu;
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{
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int i;
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char buffer[80];
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char *start = buffer;
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struct rs6000_cpu_select *ptr;
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if (flag_verbose_asm)
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{
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sprintf (buffer, "\n%s rs6000/powerpc options:", ASM_COMMENT_START);
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rs6000_select[0].string = default_cpu;
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for (i = 0; i < sizeof (rs6000_select) / sizeof (rs6000_select[0]); i++)
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{
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ptr = &rs6000_select[i];
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if (ptr->string != (char *)0 && ptr->string[0] != '\0')
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{
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fprintf (file, "%s %s%s", start, ptr->name, ptr->string);
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start = "";
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}
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}
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#ifdef USING_SVR4_H
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switch (rs6000_sdata)
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{
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case SDATA_NONE: fprintf (file, "%s -msdata=none", start); start = ""; break;
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case SDATA_DATA: fprintf (file, "%s -msdata=data", start); start = ""; break;
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case SDATA_SYSV: fprintf (file, "%s -msdata=sysv", start); start = ""; break;
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case SDATA_EABI: fprintf (file, "%s -msdata=eabi", start); start = ""; break;
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}
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if (rs6000_sdata && g_switch_value)
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{
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fprintf (file, "%s -G %d", start, g_switch_value);
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start = "";
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}
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#endif
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if (*start == '\0')
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fputs ("\n", file);
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}
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}
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/* Create a CONST_DOUBLE from a string. */
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@ -2244,6 +2244,7 @@ extern int rs6000_trunc_used;
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text_section (); \
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if (profile_flag) \
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fputs ("\t.extern .mcount\n", FILE); \
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rs6000_file_start (FILE, TARGET_CPU_DEFAULT); \
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}
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/* Output at end of assembler file.
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@ -3012,6 +3013,7 @@ extern int flag_expensive_optimizations;
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/* Declare functions in rs6000.c */
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extern void output_options ();
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extern void rs6000_override_options ();
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extern void rs6000_file_start ();
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extern struct rtx_def *rs6000_float_const ();
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extern struct rtx_def *rs6000_immed_double_const ();
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extern int direct_return ();
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@ -691,6 +691,7 @@ do { \
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#define ASM_FILE_START(FILE) \
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do { \
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output_file_directive ((FILE), main_input_filename); \
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rs6000_file_start (FILE, TARGET_CPU_DEFAULT); \
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} while (0)
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@ -919,7 +920,7 @@ do { \
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#undef CPP_SYSV_SPEC
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#define CPP_SYSV_SPEC \
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"%{mrelocatable: -D_RELOCATABLE} \
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"%{mrelocatable*: -D_RELOCATABLE} \
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%{mcall-sysv: -D_CALL_SYSV} %{mcall-nt: -D_CALL_NT} \
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%{mcall-aix: -D_CALL_AIX} %{mcall-aixdesc: -D_CALL_AIX -D_CALL_AIXDESC} \
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%{!mcall-sysv: %{!mcall-aix: %{!mcall-aixdesc: %{!mcall-nt: %(cpp_sysv_default) }}}} \
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@ -177,23 +177,12 @@ do { \
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/* Stuff to force fit us into the Motorola PPC assembler */
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#if 0
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#undef ASM_FILE_START
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#define ASM_FILE_START(FILE) \
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{ \
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output_file_directive (FILE, main_input_filename); \
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fprintf (FILE, "\n#\tDirective section\n"); \
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fprintf (FILE, "\t.section\t.drectve,\"iR\"\n"); \
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fprintf (FILE, "\t.byte\t\"-defaultlib:LIBC\" \n"); \
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fprintf (FILE, "\t.previous\n\n"); \
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}
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#endif
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#undef ASM_FILE_START
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#define ASM_FILE_START(FILE) \
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do { \
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output_file_directive ((FILE), main_input_filename); \
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data_section (); \
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#undef ASM_FILE_START \
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#define ASM_FILE_START(FILE) \
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do { \
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output_file_directive ((FILE), main_input_filename); \
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rs6000_file_start (FILE, TARGET_CPU_DEFAULT); \
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data_section (); \
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} while (0)
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#undef ASM_FILE_END
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