Module Name: src Committed By: matt Date: Mon Dec 14 01:04:02 UTC 2009
Modified Files: src/lib/csu/common_elf: common.h src/lib/csu/mips: crt0.c dot_init.h Log Message: Merge from matt-nb5-mips64 To generate a diff of this commit: cvs rdiff -u -r1.12 -r1.13 src/lib/csu/common_elf/common.h cvs rdiff -u -r1.19 -r1.20 src/lib/csu/mips/crt0.c cvs rdiff -u -r1.9 -r1.10 src/lib/csu/mips/dot_init.h Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.
Modified files: Index: src/lib/csu/common_elf/common.h diff -u src/lib/csu/common_elf/common.h:1.12 src/lib/csu/common_elf/common.h:1.13 --- src/lib/csu/common_elf/common.h:1.12 Thu May 18 17:54:19 2006 +++ src/lib/csu/common_elf/common.h Mon Dec 14 01:04:02 2009 @@ -1,4 +1,4 @@ -/* $NetBSD: common.h,v 1.12 2006/05/18 17:54:19 christos Exp $ */ +/* $NetBSD: common.h,v 1.13 2009/12/14 01:04:02 matt Exp $ */ /* * Copyright (c) 1995 Christopher G. Demetriou @@ -53,7 +53,7 @@ typedef void Obj_Entry; #endif -extern int __syscall(quad_t, ...); +extern quad_t __syscall(quad_t, ...); #define _exit(v) __syscall(SYS_exit, (v)) #define write(fd, s, n) __syscall(SYS_write, (fd), (s), (n)) Index: src/lib/csu/mips/crt0.c diff -u src/lib/csu/mips/crt0.c:1.19 src/lib/csu/mips/crt0.c:1.20 --- src/lib/csu/mips/crt0.c:1.19 Sat Dec 24 22:02:10 2005 +++ src/lib/csu/mips/crt0.c Mon Dec 14 01:04:02 2009 @@ -1,4 +1,4 @@ -/* $NetBSD: crt0.c,v 1.19 2005/12/24 22:02:10 perry Exp $ */ +/* $NetBSD: crt0.c,v 1.20 2009/12/14 01:04:02 matt Exp $ */ /* * Copyright (c) 1995 Christopher G. Demetriou @@ -86,10 +86,15 @@ */ #ifndef DYNAMIC +#ifdef _LP64 + __asm volatile("dla $28,_gp"); +#else __asm volatile("la $28,_gp"); #endif +#endif ksp = (char**)sp; +#if defined(__mips_n32) || defined(__mips_n64) if (ksp == 0) { /* * Uh, oh. We're running on a old kernel that passed @@ -110,6 +115,7 @@ __asm volatile(" addiu %0,$29,64" : "=r" (ksp)); #endif } +#endif argc = *(int *)ksp; @@ -157,7 +163,7 @@ * is the entrypoint. (Only needed for old toolchains). */ #if defined(LIBC_SCCS) && !defined(lint) -__RCSID("$NetBSD: crt0.c,v 1.19 2005/12/24 22:02:10 perry Exp $"); +__RCSID("$NetBSD: crt0.c,v 1.20 2009/12/14 01:04:02 matt Exp $"); #endif /* LIBC_SCCS and not lint */ #include "common.c" Index: src/lib/csu/mips/dot_init.h diff -u src/lib/csu/mips/dot_init.h:1.9 src/lib/csu/mips/dot_init.h:1.10 --- src/lib/csu/mips/dot_init.h:1.9 Sat May 10 15:31:04 2008 +++ src/lib/csu/mips/dot_init.h Mon Dec 14 01:04:02 2009 @@ -1,4 +1,4 @@ -/* $NetBSD: dot_init.h,v 1.9 2008/05/10 15:31:04 martin Exp $ */ +/* $NetBSD: dot_init.h,v 1.10 2009/12/14 01:04:02 matt Exp $ */ /*- * Copyright (c) 2001 Ross Harvey @@ -36,48 +36,98 @@ #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ -#define ra "$31" +#define t9 "$25" /* - * Allocate 32 bytes for the stack frame. Store GP at SP+16 (since - * this is where code generated by the compiler for fallthru processing - * expects it to be), and the RA at SP+28. + * For O32/O64, allocate 8 "slots" for the stack frame. Store GP in the 4th + * (zero-based) slot (since this is where compiler generated code for fallthru + * processing expects it to be), and the RA in seventh (highest address). * - * This will need adjustment for 64-bit ABIs. + * For N32/N64, allocate 4 8-byte "slots" for the stack frame. Store GP in the + * 2nd (zero-based) slot (since ...) and the RA in third (highest address). */ + +#ifdef __mips_o32 +#define sPTR_ADDU "addu" +#define sREG_L "lw" +#define sREG_S "sw" +#define sRAOFF "28" +#define sFRAMESZ "32" +#define MD_GPRESTORE /* nothing */ +#else +#define sPTR_ADDU "daddu" +#define sREG_L "ld" +#define sREG_S "sd" +#if defined(__mips_n32) || defined(__mips_n64) +#define MD_GPRESTORE "ld $gp,8($sp)" "\n\t" +#define sRAOFF "24" +#define sFRAMESZ "32" +#elif defined(__mips_o64) +#define sRAOFF "56" +#define sFRAMESZ "64" +#define MD_GPRESTORE /* nothing */ +#endif +#endif + #ifdef __ABICALLS__ -#define MD_FUNCTION_PROLOGUE \ - ".set noreorder \n"\ - ".cpload $25 \n"\ - ".set reorder \n"\ - " subu $sp,$sp,32 \n"\ - ".cprestore 16 \n"\ - " sw "ra",28($sp) \n" +#if defined(__mips_o32) || defined(__mips_o64) +#define MD_FUNCTION_PROLOGUE(entry_pt) \ + ".set noreorder" "\n\t" \ + ".cpload "t9 "\n\t" \ + ".set reorder" "\n\t" \ + sPTR_ADDU" $sp,$sp,-"sFRAMESZ "\n\t" \ + ".cprestore 16" "\n\t" \ + sREG_S" $ra,"sRAOFF"($sp)" "\n\t" + +#elif defined(__mips_n32) || defined(__mips_n64) +#define MD_FUNCTION_PROLOGUE(entry_pt) \ + ".set noreorder" "\n\t" \ + "daddu $sp,$sp,-32" "\n\t" \ + ".cpsetup "t9", 8, "#entry_pt "\n\t" \ + "sd $ra,24($sp)" "\n\t" \ + ".set reorder" "\n\t" +#else +#error ABI not supported (__ABICALLS) +#endif +#else +#if defined(__mips_o32) || defined(__mips_o64) +#define MD_FUNCTION_PROLOGUE(entry_pt) \ + sPTR_ADDU" $sp,$sp,-"sFRAMESZ "\n\t" \ + sREG_S" $ra,"sRAOFF"($sp)" "\n\t" + +#elif defined(__mips_n32) || defined(__mips_n64) +/* + * On N32/N64, GP is callee-saved. + */ +#define MD_FUNCTION_PROLOGUE(entry_pt) \ + "daddu $sp,$sp,-32" "\n\t" \ + "sd $gp,8($sp)" "\n\t" \ + "sd $ra,24($sp)" "\n\t" #else -#define MD_FUNCTION_PROLOGUE \ - " subu $sp,$sp,32 \n"\ - " sw "ra",28($sp) \n" +#error ABI not supported (!__ABICALLS) #endif +#endif /* __ABICALLS */ -#define MD_SECTION_PROLOGUE(sect, entry_pt) \ - __asm ( \ - ".section "#sect",\"ax\",@progbits \n"\ - ".align 2 \n"\ - ".globl "#entry_pt" \n"\ - #entry_pt": \n"\ - MD_FUNCTION_PROLOGUE \ - " /* fall thru */ \n"\ +#define MD_SECTION_PROLOGUE(sect, entry_pt) \ + __asm ( \ + ".section "#sect",\"ax\",@progbits" "\n\t" \ + ".align 2" "\n\t" \ + ".globl "#entry_pt "\n\t" \ + #entry_pt":" "\n\t" \ + MD_FUNCTION_PROLOGUE(entry_pt) \ + " /* fall thru */" "\n\t" \ ".previous") -#define MD_SECTION_EPILOGUE(sect) \ - __asm ( \ - ".section "#sect",\"ax\",@progbits \n"\ - " lw "ra",28($sp) \n"\ - " .set noreorder \n"\ - " j "ra" \n"\ - " addu $sp,$sp,32 \n"\ - " .set reorder \n"\ +#define MD_SECTION_EPILOGUE(sect) \ + __asm ( \ + ".section "#sect",\"ax\",@progbits" "\n\t" \ + sREG_L" $ra,"sRAOFF"($sp)" "\n\t" \ + MD_GPRESTORE \ + ".set noreorder" "\n\t" \ + "j $ra" "\n\t" \ + sPTR_ADDU" $sp,$sp,"sFRAMESZ "\n\t" \ + ".set reorder" "\n\t" \ ".previous") #define MD_INIT_SECTION_PROLOGUE MD_SECTION_PROLOGUE(.init, _init)