From: gingold Date: Mon, 26 Mar 2012 09:35:18 +0000 (+0000) Subject: libgcc/ X-Git-Tag: upstream/4.9.2~13582 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=784576c78ae3ee42deaa19ee21842947c8f31322;p=platform%2Fupstream%2Flinaro-gcc.git libgcc/ 2012-03-26 Tristan Gingold * config/alpha/vms.h (LINK_SPEC): Simplify. (STARTFILE_SPEC): Remove -mvms-return-codes handling. (NAME__MAIN, SYMBOL__MAIN): Remove. (VMS_DEBUG_MAIN_POINTER): Remove. * config/ia64/vms.h: Likewise. * config/alpha/alpha.c (alpha_start_function): Move vms_debug_main code to vms.c. Call vms_start_function. * config/ia64/ia64.c (ia64_start_function): Likewise. * config/vms/vms-protos.h (vms_start_function): Declare. * config/vms/vms.c (vms_start_function): New function. * config/vms/vms.h (MATH_LIBRARY): Define. (VMS_DEBUG_MAIN_POINTER): Define. gcc/ 2012-03-26 Tristan Gingold * config/alpha/vms.h (LINK_SPEC): Simplify. (STARTFILE_SPEC): Remove -mvms-return-codes handling. (NAME__MAIN, SYMBOL__MAIN): Remove. (VMS_DEBUG_MAIN_POINTER): Remove. * config/ia64/vms.h: Likewise. * config/alpha/alpha.c (alpha_start_function): Move vms_debug_main code to vms.c. Call vms_start_function. * config/ia64/ia64.c (ia64_start_function): Likewise. * config/vms/vms-protos.h (vms_start_function): Declare. * config/vms/vms.c (vms_start_function): New function. * config/vms/vms.h (MATH_LIBRARY): Define. (VMS_DEBUG_MAIN_POINTER): Define. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@185791 138bc75d-0d04-0410-961f-82ee72b054a4 --- diff --git a/gcc/ChangeLog b/gcc/ChangeLog index bc16917..daa9b83 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,18 @@ +2012-03-26 Tristan Gingold + + * config/alpha/vms.h (LINK_SPEC): Simplify. + (STARTFILE_SPEC): Remove -mvms-return-codes handling. + (NAME__MAIN, SYMBOL__MAIN): Remove. + (VMS_DEBUG_MAIN_POINTER): Remove. + * config/ia64/vms.h: Likewise. + * config/alpha/alpha.c (alpha_start_function): Move vms_debug_main + code to vms.c. Call vms_start_function. + * config/ia64/ia64.c (ia64_start_function): Likewise. + * config/vms/vms-protos.h (vms_start_function): Declare. + * config/vms/vms.c (vms_start_function): New function. + * config/vms/vms.h (MATH_LIBRARY): Define. + (VMS_DEBUG_MAIN_POINTER): Define. + 2012-03-26 Eric Botcazou PR rtl-optimization/52629 diff --git a/gcc/config/alpha/alpha.c b/gcc/config/alpha/alpha.c index 46c620b..c52fc50 100644 --- a/gcc/config/alpha/alpha.c +++ b/gcc/config/alpha/alpha.c @@ -7866,14 +7866,7 @@ alpha_start_function (FILE *file, const char *fnname, int i; #if TARGET_ABI_OPEN_VMS - if (vms_debug_main - && strncmp (vms_debug_main, fnname, strlen (vms_debug_main)) == 0) - { - targetm.asm_out.globalize_label (asm_out_file, VMS_DEBUG_MAIN_POINTER); - ASM_OUTPUT_DEF (asm_out_file, VMS_DEBUG_MAIN_POINTER, fnname); - switch_to_section (text_section); - vms_debug_main = NULL; - } + vms_start_function (fnname); #endif alpha_fnname = fnname; diff --git a/gcc/config/alpha/vms.h b/gcc/config/alpha/vms.h index b1d46b5..8caec54 100644 --- a/gcc/config/alpha/vms.h +++ b/gcc/config/alpha/vms.h @@ -43,8 +43,6 @@ along with GCC; see the file COPYING3. If not see builtin_define ("__IEEE_FLOAT"); \ } while (0) -#define VMS_DEBUG_MAIN_POINTER "TRANSFER$BREAK$GO" - #undef PCC_STATIC_STRUCT_RETURN #define MAX_OFILE_ALIGNMENT 524288 /* 8 x 2^16 by DEC Ada Test CD40VRA */ @@ -279,21 +277,14 @@ do { \ #else /* Link with vms-dwarf2.o if -g (except -g0). This causes the VMS link to pull all the dwarf2 debug sections together. */ -#define LINK_SPEC "%{g:-g vms-dwarf2.o%s} %{g0} %{g1:-g1 vms-dwarf2.o%s} \ -%{g2:-g2 vms-dwarf2.o%s} %{g3:-g3 vms-dwarf2.o%s} %{shared} %{v} %{map}" +#define LINK_SPEC "%{g0} %{g*:-g vms-dwarf2.o%s} %{shared} %{v} %{map}" #endif #undef STARTFILE_SPEC -#define STARTFILE_SPEC \ -"%{!shared:%{mvms-return-codes:vcrt0.o%s} %{!mvms-return-codes:pcrt0.o%s} \ - crtbegin.o%s} \ +#define STARTFILE_SPEC "%{!shared:crt0.o%s crtbegin.o%s} \ %{!static:%{shared:crtbeginS.o%s}}" -#define ENDFILE_SPEC \ -"%{!shared:crtend.o%s} %{!static:%{shared:crtendS.o%s}}" - -#define NAME__MAIN "__gccmain" -#define SYMBOL__MAIN __gccmain +#define ENDFILE_SPEC "%{!shared:crtend.o%s} %{!static:%{shared:crtendS.o%s}}" #define INIT_SECTION_ASM_OP "\t.section LIB$INITIALIZE,GBL,NOWRT" diff --git a/gcc/config/ia64/ia64.c b/gcc/config/ia64/ia64.c index 5b2d748..98a6120 100644 --- a/gcc/config/ia64/ia64.c +++ b/gcc/config/ia64/ia64.c @@ -3649,16 +3649,8 @@ void ia64_start_function (FILE *file, const char *fnname, tree decl ATTRIBUTE_UNUSED) { -#if VMS_DEBUGGING_INFO - if (vms_debug_main - && debug_info_level > DINFO_LEVEL_NONE - && strncmp (vms_debug_main, fnname, strlen (vms_debug_main)) == 0) - { - targetm.asm_out.globalize_label (asm_out_file, VMS_DEBUG_MAIN_POINTER); - ASM_OUTPUT_DEF (asm_out_file, VMS_DEBUG_MAIN_POINTER, fnname); - dwarf2out_vms_debug_main_pointer (); - vms_debug_main = 0; - } +#if TARGET_ABI_OPEN_VMS + vms_start_function (fnname); #endif fputs ("\t.proc ", file); diff --git a/gcc/config/ia64/vms.h b/gcc/config/ia64/vms.h index 1908c47..3e0c653 100644 --- a/gcc/config/ia64/vms.h +++ b/gcc/config/ia64/vms.h @@ -30,8 +30,6 @@ along with GCC; see the file COPYING3. If not see #undef TARGET_DEFAULT #define TARGET_DEFAULT (MASK_DWARF2_ASM | MASK_GNU_AS) -#define VMS_DEBUG_MAIN_POINTER "TRANSFER$BREAK$GO" - #undef MAX_OFILE_ALIGNMENT #define MAX_OFILE_ALIGNMENT 524288 /* 8 x 2^16 by DEC Ada Test CD40VRA */ @@ -55,19 +53,16 @@ do { \ } while (0) #undef STARTFILE_SPEC -#define STARTFILE_SPEC \ -"%{!shared:%{mvms-return-codes:vcrt0.o%s} %{!mvms-return-codes:pcrt0.o%s} \ - crtbegin.o%s} \ +#define STARTFILE_SPEC "%{!shared:crt0.o%s crtbegin.o%s} \ %{!static:%{shared:crtinitS.o%s crtbeginS.o%s}}" #undef ENDFILE_SPEC -#define ENDFILE_SPEC \ -"%{!shared:crtend.o%s} %{!static:%{shared:crtendS.o%s}}" +#define ENDFILE_SPEC "%{!shared:crtend.o%s} %{!static:%{shared:crtendS.o%s}}" #define LINK_GCC_C_SEQUENCE_SPEC "%G" #undef LINK_SPEC -#define LINK_SPEC "%{g*} %{map} %{save-temps} %{shared} %{v}" +#define LINK_SPEC "%{g0} %{g*:-g} %{map} %{save-temps} %{shared} %{v}" #undef LIB_SPEC #define LIB_SPEC "" @@ -89,9 +84,6 @@ do { \ #undef TARGET_INIT_LIBFUNCS #define TARGET_INIT_LIBFUNCS ia64_vms_init_libfuncs -#define NAME__MAIN "__gccmain" -#define SYMBOL__MAIN __gccmain - #define CTOR_LIST_BEGIN asm (".global\tLIB$INITIALIZE#\n"); \ STATIC func_ptr __CTOR_LIST__[1] \ __attribute__ ((__unused__, section(".ctors"), aligned(sizeof(func_ptr)))) \ diff --git a/gcc/config/vms/vms-protos.h b/gcc/config/vms/vms-protos.h index ff97c31..dcff824 100644 --- a/gcc/config/vms/vms-protos.h +++ b/gcc/config/vms/vms-protos.h @@ -31,4 +31,5 @@ extern section *vms_function_section (tree decl ATTRIBUTE_UNUSED, enum node_frequency freq ATTRIBUTE_UNUSED, bool startup ATTRIBUTE_UNUSED, bool exit ATTRIBUTE_UNUSED); +extern void vms_start_function (const char *fname); #endif /* TREE_CODE */ diff --git a/gcc/config/vms/vms.c b/gcc/config/vms/vms.c index 4a7386f..a85fb3f 100644 --- a/gcc/config/vms/vms.c +++ b/gcc/config/vms/vms.c @@ -23,8 +23,9 @@ along with GCC; see the file COPYING3. If not see #include "coretypes.h" #include "tree.h" #include "vms-protos.h" -#include "tm.h" #include "ggc.h" +#include "target.h" +#include "output.h" /* Correlation of standard CRTL names with DECCRTL function names. */ @@ -194,4 +195,43 @@ vms_function_section (tree decl ATTRIBUTE_UNUSED, return NULL; } +/* Additionnal VMS specific code for start_function. */ + +/* Must be kept in sync with libgcc/config/vms/vms-ucrt0.c */ +#define VMS_MAIN_FLAGS_SYMBOL "__gcc_main_flags" +#define MAIN_FLAG_64BIT (1 << 0) +#define MAIN_FLAG_POSIX (1 << 1) + +void +vms_start_function (const char *fnname) +{ +#if VMS_DEBUGGING_INFO + if (vms_debug_main + && debug_info_level > DINFO_LEVEL_NONE + && strncmp (vms_debug_main, fnname, strlen (vms_debug_main)) == 0) + { + targetm.asm_out.globalize_label (asm_out_file, VMS_DEBUG_MAIN_POINTER); + ASM_OUTPUT_DEF (asm_out_file, VMS_DEBUG_MAIN_POINTER, fnname); + dwarf2out_vms_debug_main_pointer (); + vms_debug_main = 0; + } +#endif + + /* Registers flags used for function main. This is necessary for + crt0 code. */ + if (strcmp (fnname, "main") == 0) + { + unsigned int flags = 0; + + if (flag_vms_pointer_size == VMS_POINTER_SIZE_64) + flags |= MAIN_FLAG_64BIT; + if (!flag_vms_return_codes) + flags |= MAIN_FLAG_POSIX; + + targetm.asm_out.globalize_label (asm_out_file, VMS_MAIN_FLAGS_SYMBOL); + assemble_name (asm_out_file, VMS_MAIN_FLAGS_SYMBOL); + fprintf (asm_out_file, " = %u\n", flags); + } +} + #include "gt-vms.h" diff --git a/gcc/config/vms/vms.h b/gcc/config/vms/vms.h index 47028c8..8eb5606 100644 --- a/gcc/config/vms/vms.h +++ b/gcc/config/vms/vms.h @@ -75,10 +75,15 @@ extern void vms_c_register_includes (const char *, const char *, int); #define C_COMMON_OVERRIDE_OPTIONS vms_c_common_override_options () /* VMS doesn't support other sections than .text for code. */ - #define TARGET_ASM_FUNCTION_SECTION vms_function_section /* Always use 8 bytes addresses in dwarf2 debug info. The default value doesn't work as it may be 4 bytes, which won't match gas default (8 bytes for ia64), and will thus produce incorrect values. */ #define DWARF2_ADDR_SIZE 8 + +/* No libm on VMS. */ +#define MATH_LIBRARY "" + +/* Special VMS debugger symbol to record the entry point. */ +#define VMS_DEBUG_MAIN_POINTER "TRANSFER$BREAK$GO" diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog index 617db6e..13ca113 100644 --- a/libgcc/ChangeLog +++ b/libgcc/ChangeLog @@ -1,3 +1,13 @@ +2012-03-26 Tristan Gingold + + * config/vms/vms-ucrt0.c: Update copyright years. + Add a sanity check. + (___gcc_main_flags): Declare. + (__main): Check flags to remap argv and exit code. + * config.host (*-*-*vms*): Adjust extra_parts. + * config/vms/t-vms (vcrt0.o, pcrt0.o): Remove. + (crt0.o): Add. + 2012-03-22 Richard Earnshaw * arm/lib1funcs.asm (ctzsi2): New function. diff --git a/libgcc/config.host b/libgcc/config.host index 1e81518..fdafc48 100644 --- a/libgcc/config.host +++ b/libgcc/config.host @@ -255,7 +255,7 @@ case ${host} in ;; *-*-*vms*) tmake_file="vms/t-vms" - extra_parts="vcrt0.o pcrt0.o crtbegin.o crtbeginS.o crtend.o crtendS.o" + extra_parts="crt0.o crtbegin.o crtbeginS.o crtend.o crtendS.o" ;; *-*-vxworks*) tmake_file=t-vxworks diff --git a/libgcc/config/vms/t-vms b/libgcc/config/vms/t-vms index 93d8255..21e09ff 100644 --- a/libgcc/config/vms/t-vms +++ b/libgcc/config/vms/t-vms @@ -1,6 +1,3 @@ -# Assemble startup files. -vcrt0.o: $(srcdir)/config/vms/vms-ucrt0.c - $(gcc_compile) -c $< - -pcrt0.o: $(srcdir)/config/vms/vms-ucrt0.c - $(gcc_compile) -c -DCRT0_POSIX_EXIT $< +# Assemble startup file. +crt0.o: $(srcdir)/config/vms/vms-ucrt0.c + $(gcc_compile) -mpointer-size=64 -c $< diff --git a/libgcc/config/vms/vms-ucrt0.c b/libgcc/config/vms/vms-ucrt0.c index 344b595..02b7bdb 100644 --- a/libgcc/config/vms/vms-ucrt0.c +++ b/libgcc/config/vms/vms-ucrt0.c @@ -1,5 +1,5 @@ /* VMS crt0 returning Unix style condition codes. - Copyright (C) 2001, 2009, 2010 Free Software Foundation, Inc. + Copyright (C) 2001, 2009, 2010, 2012 Free Software Foundation, Inc. Contributed by Douglas B. Rupp (rupp@gnat.com). This file is part of GCC. @@ -25,12 +25,16 @@ #include +/* Sanity check. */ +#if __INITIAL_POINTER_SIZE != 64 +#error "vms-ucrt0.c must be compiled with -mpointer-size=64" +#endif + /* Lots of cheat to handle 32bits/64bits pointer conversions. We use 'long long' for 64 bits pointers and 'int' for 32 bits pointers. */ -extern void decc$main (void *arg1, void *arg2, void *arg3, - void *image_file_desc, void *arg5, void *arg6, - int *, int *, int *); +extern void decc$main (void *, void *, void *, void *, unsigned int, + unsigned int, int *, int *, int *); extern int main (int, char **, char **); extern int _malloc32 (int); @@ -40,8 +44,8 @@ extern int _malloc32 (int); #define MAIN_ASM_NAME #endif -int __main (void *arg1, void *arg2, void *arg3, - void *image_file_desc, void *arg5, void *arg6) MAIN_ASM_NAME; +int __main (void *, void *, void *, void *, + unsigned int, unsigned int) MAIN_ASM_NAME; /* From errnodef.h, but we need to emulate the globalval. */ extern int C$_EXIT1; @@ -49,79 +53,90 @@ extern int C$_EXIT1; /* From stsdef.h */ #define STS$V_MSG_NO 0x03 #define STS$M_INHIB_MSG 0x10000000 +/* Symbol defined while main() is compiled to record the flags used. + (Note that the symbol defines the value, ie extract the bits from the + address). + bit 0 set for 64 bit pointers + bit 1 set for posix return value. */ +extern char __gcc_main_flags; /* From ssdef.h */ #define SS$_NORMAL 1 +#define MAIN_FLAG_64BIT (1 << 0) +#define MAIN_FLAG_POSIX (1 << 1) int -__main (void *arg1, void *arg2, void *arg3, - void *image_file_desc, void *arg5, void *arg6) +__main (void *progxfer, void *cli_util, void *imghdr, void *image_file_desc, + unsigned int linkflag, unsigned int cliflag) { int argc; int argv; int envp; int status; - int i; - long long *long_argv; - long long *long_envp; + char **argv64; + char **envp64; + unsigned int flags = (unsigned __int64)&__gcc_main_flags; /* The argv and envp arrays are 32 bits pointers to 32 bits pointers. */ - decc$main (arg1, arg2, arg3, image_file_desc, - arg5, arg6, &argc, &argv, &envp); + decc$main (progxfer, cli_util, imghdr, image_file_desc, + linkflag, cliflag, &argc, &argv, &envp); - if (sizeof (void *) == 8) + if (flags & MAIN_FLAG_64BIT) { + int i; + /* Reallocate argv and envp with 64 bit pointers. */ - long_argv = (long long *) - (long long) _malloc32 (sizeof (long long) * (argc + 1)); + argv64 = (char **) _malloc32 (sizeof (char *) * (argc + 1)); for (i = 0; i < argc; i++) - long_argv[i] = ((int *) (long long) argv)[i]; + argv64[i] = (char *) (__int64)(((int *) (__int64) argv)[i]); - long_argv[argc] = 0; + argv64[argc] = NULL; - for (i = 0; ((int *) (long long) envp)[i]; i++) + for (i = 0; ((int *) (__int64) envp)[i]; i++) ; - long_envp = (long long *) - (long long) _malloc32 (sizeof (long long) * (i + 1)); + envp64 = (char **) _malloc32 (sizeof (char *) * (i + 1)); - for (i = 0; ((int *) (long long) envp)[i]; i++) - long_envp[i] = ((int *) (long long) envp)[i]; + for (i = 0; ((int *) (__int64) envp)[i]; i++) + envp64[i] = (char *)(__int64)(((int *) (__int64) envp)[i]); - long_envp[i] = 0; + envp64[i] = NULL; } else { - long_argv = (long long *) argv; - long_envp = (long long *) envp; + argv64 = (char **)(__int64)argv; + envp64 = (char **)(__int64)envp; } - status = main (argc, (char **)long_argv, (char **)long_envp); -#ifdef CRT0_POSIX_EXIT - /* Map into a range of 0 - 255. */ - status = status & 255; + status = main (argc, argv64, envp64); - if (status > 0) + if (flags & MAIN_FLAG_POSIX) { - int save_status = status; + /* Map into a range of 0 - 255. */ + status &= 255; - status = (long) &C$_EXIT1 + ((status - 1) << STS$V_MSG_NO); - - /* An exit failure status requires a "severe" error. All status values - are defined in errno with a successful (1) severity but can be - changed to an error (2) severity by adding 1. In addition for - compatibility with UNIX exit() routines we inhibit a run-time error - message from being generated on exit(1). */ - - if (save_status == 1) + if (status != 0) { - status++; - status |= STS$M_INHIB_MSG; + int save_status = status; + + status = (__int64) &C$_EXIT1 + ((status - 1) << STS$V_MSG_NO); + + /* An exit failure status requires a "severe" error. All + status values are defined in errno with a successful (1) + severity but can be changed to an error (2) severity by + adding 1. In addition for compatibility with UNIX exit() + routines we inhibit a run-time error message from being + generated on exit(1). */ + + if (save_status == 1) + { + status++; + status |= STS$M_INHIB_MSG; + } } + else + status = SS$_NORMAL; } - else - status = SS$_NORMAL; -#endif /* CRT0_POSIX_EXIT */ return status; }