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[__ELF__ && __GNUC__] (C_SWITCH_MACHINE): Add -fno-common.

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(TEXT_START, DATA_START, DATA_SEG_BITS, UNEXEC): Define only if
__ELF__ is not defined.
(LINUX_SBRK_BUG): Define only if LINUX and __GNU_LIBRARY__ < 6.
(NO_TERMIO): Always define this.  No Alpha system should need termio.
(COFF, DATA_END): Define only if __ELF__ is not defined.
This commit is contained in:
Richard M. Stallman 1996-08-09 22:00:35 +00:00
parent 513dea0acb
commit 821f376d2c
1 changed files with 30 additions and 11 deletions
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41
src/m/alpha.h
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@ -139,6 +139,21 @@ NOTE-END
/* #define NO_SOCK_SIGIO */
#ifdef __ELF__
/* With ELF, make sure that all common symbols get allocated to in the
data section. Otherwise, the dump of temacs may miss variables in
the shared library that have been initialized. For example, with
GNU libc, __malloc_initialized would normally be resolved to the
shared library's .bss section, which is fatal. */
# ifdef __GNUC__
# define C_SWITCH_MACHINE -fno-common
# else
# error What gives? Fix me if DEC Unix supports ELF now.
# endif
#endif
#ifndef __ELF__
/* Describe layout of the address space in an executing process. */
#define TEXT_START 0x120000000
@ -149,6 +164,12 @@ NOTE-END
#define DATA_SEG_BITS 0x140000000
/* The program to be used for unexec. */
#define UNEXEC unexalpha.o
#endif /* notdef __ELF__ */
#ifdef OSF1
#define ORDINARY_LINK
@ -175,15 +196,11 @@ NOTE-END
#define START_FILES pre-crt0.o
#endif
#ifdef LINUX
#if defined (LINUX) && __GNU_LIBRARY__ - 0 < 6
/* This controls a conditional in main. */
#define LINUX_SBRK_BUG
#endif
/* The program to be used for unexec. */
#define UNEXEC unexalpha.o
#define PNTR_COMPARISON_TYPE unsigned long
@ -273,12 +290,14 @@ extern void r_alloc_free ();
while (0)
#endif
#ifdef linux
#define COFF
/* Linux/Alpha doesn't like it if termio.h and termios.h get included
simultaneously. */
/* On the Alpha it's best to avoid including TERMIO since struct
termio and struct termios are mutually incompatible. */
#define NO_TERMIO
#define TEXT_END ({ extern int _etext; &_etext; })
#define DATA_END ({ extern int _EDATA; &_EDATA; })
#ifdef LINUX
# define TEXT_END ({ extern int _etext; &_etext; })
# ifndef __ELF__
# define COFF
# define DATA_END ({ extern int _EDATA; &_EDATA; })
# endif /* notdef __ELF__ */
#endif