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stab.def: Remove the GNU extended type codes (e.g. N_SETT).

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aoutx.h:  Put back the N_HEADER_IN_TEXT(x) that John removed,
but use his heuristic as its default definition.
bfd.H;  Re-generated.
This commit is contained in:
Per Bothner 1991-11-22 05:22:06 +00:00
parent 7de245d362
commit 27612c2966
4 changed files with 34 additions and 57 deletions
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10
include/ChangeLog
View File

@ -1,3 +1,13 @@
Thu Nov 21 21:01:05 1991 Per Bothner (bothner at cygnus.com)
* stab.def: Remove the GNU extended type codes (e.g. N_SETT).
* aout64.h: The heuristic for distinguishing between
sunos-style and bsd-style ZMAGIC files (wrt. where the
text segment starts) is moved into (the default definition of)
the macro N_HEADER_IN_TEXT. This definition is only used
if no other definition is used - e.g. bfd/newsos3.c defines
N_HEADER_IN_TEXT(x) to be always 0 (as before).
Thu Nov 21 11:53:03 1991 John Gilmore (gnu at cygnus.com)
* aout64.h (N_TXTADDR, N_TXTOFF, N_TXTSIZE): New definitions

33
include/aout64.h
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@ -53,15 +53,30 @@ struct external_exec
* entry point below TEXT_START_ADDR:
(hack for SunOS shared libraries)
start at 0, offset is 0, size as stated.
* entry point is EXEC_BYTES_SIZE or further into a page:
(no padding is needed; text can start after exec header. Sun
* If N_HEADER_IN_TEXT(x) is true (which defaults to being the
case when the entry point is EXEC_BYTES_SIZE or further into a page):
no padding is needed; text can start after exec header. Sun
considers the text segment of such files to include the exec header;
for BFD's purposes, we don't, which makes more work for us.)
for BFD's purposes, we don't, which makes more work for us.
start at TEXT_START_ADDR + EXEC_BYTES_SIZE, offset is EXEC_BYTES_SIZE,
size as stated minus EXEC_BYTES_SIZE.
* entry point is less than EXEC_BYTES_SIZE into a page (e.g. page aligned):
(padding is needed so that text can start at a page boundary)
start at TEXT_START_ADDR, offset PAGE_SIZE, size as stated. */
* If N_HEADER_IN_TEXT(x) is false (which defaults to being the case when
the entry point is less than EXEC_BYTES_SIZE into a page (e.g. page
aligned)): (padding is needed so that text can start at a page boundary)
start at TEXT_START_ADDR, offset PAGE_SIZE, size as stated.
Specific configurations may want to hardwire N_HEADER_IN_TEXT,
for efficiency or to allow people to play games with the entry point.
In that case, you would #define N_HEADER_IN_TEXT(x) as 1 for sunos,
and as 0 for most other hosts (Sony News, Vax Ultrix, etc).
(Do this in the appropriate bfd target file.)
(The default is a heuristic that will break if people try changing
the entry point, perhaps with the ld -e flag.)
*/
#ifndef N_HEADER_IN_TEXT
#define N_HEADER_IN_TEXT(x) (((x).a_entry & (PAGE_SIZE-1)) >= EXEC_BYTES_SIZE)
#endif
#ifndef N_TXTADDR
#define N_TXTADDR(x) \
@ -69,7 +84,7 @@ struct external_exec
0: /* object file or NMAGIC */\
((x).a_entry < TEXT_START_ADDR)? \
0: /* shared lib */\
( (((x).a_entry & (PAGE_SIZE-1)) >= EXEC_BYTES_SIZE) ? \
(N_HEADER_IN_TEXT(x) ? \
TEXT_START_ADDR + EXEC_BYTES_SIZE: /* no padding */\
TEXT_START_ADDR /* a page of padding */\
) \
@ -83,7 +98,7 @@ struct external_exec
EXEC_BYTES_SIZE: /* object file or NMAGIC */\
((x).a_entry < TEXT_START_ADDR)? \
0: /* shared lib */\
( (((x).a_entry & (PAGE_SIZE-1)) >= EXEC_BYTES_SIZE) ? \
(N_HEADER_IN_TEXT(x) ? \
EXEC_BYTES_SIZE: /* no padding */\
PAGE_SIZE /* a page of padding */\
) \
@ -100,7 +115,7 @@ struct external_exec
(x).a_text: /* object file or NMAGIC */\
((x).a_entry < TEXT_START_ADDR)? \
(x).a_text: /* shared lib */\
( (((x).a_entry & (PAGE_SIZE-1)) >= EXEC_BYTES_SIZE) ? \
(N_HEADER_IN_TEXT(x) ? \
(x).a_text - EXEC_BYTES_SIZE: /* no padding */\
(x).a_text /* a page of padding */\
) \

8
include/bfd.h
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@ -1647,14 +1647,6 @@ Return a lower-case character corresponding to the symbol class of symbol.
PROTO(int, bfd_decode_symclass, (asymbol *symbol));
/*
bfd_stab_name
Returns a string for the stab with the given code, or NULL if not found.
*/
PROTO(char *, bfd_stab_name, (int code));
/*
*/

40
include/stab.def
View File

@ -166,46 +166,6 @@ __define_stab (N_NBLCS, 0xF8, "NBLCS")
The value is the length. */
__define_stab (N_LENG, 0xfe, "LENG")
#ifdef GNU_EXTRA_STABS
/* These are defined in a.out.gnu.h, so they are usually left out here. */
/* The following symbols refer to set elements.
All the N_SET[ATDB] symbols with the same name form one set.
Space is allocated for the set in the text section, and each set
element's value is stored into one word of the space.
The first word of the space is the length of the set (number of elements).
The address of the set is made into an N_SETV symbol
whose name is the same as the name of the set.
This symbol acts like a N_DATA global symbol
in that it can satisfy undefined external references. */
/* These appear as input to LD, in a .o file. */
__define_stab (N_SETA, 0x14, "SETA") /* Absolute set element symbol */
__define_stab (N_SETT, 0x16, "SETT") /* Text set element symbol */
__define_stab (N_SETD, 0x18, "SETD") /* Data set element symbol */
__define_stab (N_SETB, 0x1A, "SETB") /* Bss set element symbol */
/* This is output from LD. */
__define_stab (N_SETV, 0x1C, "SETV") /* Pointer to set vector in data area. */
/* The following type indicates the definition of a symbol as being
an indirect reference to another symbol. The other symbol
appears as an undefined reference, immediately following this symbol.
Indirection is asymmetrical. The other symbol's value will be used
to satisfy requests for the indirect symbol, but not vice versa.
If the other symbol does not have a definition, libraries will
be searched to find a definition. */
__define_stab (N_INDR, 0xa, "INDR")
/* Warning symbol. The text gives a warning message, the next symbol
in the table will be undefined. When the symbol is referenced, the
message is printed. */
__define_stab (N_WARNING, 0x1e, "WARNING")
#endif
/* The above information, in matrix format.