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| author | Fumitoshi UKAI <ukai@debian.or.jp> | 2003-03-09 19:43:05 +0000 |
|---|---|---|
| committer | Fumitoshi UKAI <ukai@debian.or.jp> | 2003-03-09 19:43:05 +0000 |
| commit | 1dff73dfd6accb9bae971dd0f1ce15a182b0f75b (patch) | |
| tree | 90442e8c55bb3e5d8aade44a20152d2d8e297608 /gc/doc/README.ews4800 | |
| parent | autoconficate (diff) | |
| download | w3m-1dff73dfd6accb9bae971dd0f1ce15a182b0f75b.tar.gz w3m-1dff73dfd6accb9bae971dd0f1ce15a182b0f75b.zip | |
remove gc
Diffstat (limited to '')
| -rw-r--r-- | gc/doc/README.ews4800 | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/gc/doc/README.ews4800 b/gc/doc/README.ews4800 deleted file mode 100644 index 80bca2b..0000000 --- a/gc/doc/README.ews4800 +++ /dev/null @@ -1,81 +0,0 @@ -GC on EWS4800 -------------- - -1. About EWS4800 - EWS4800 is 32bit/64bit workstation. - - Vender: NEC Corporation - OS: UX/4800 R9.* - R13.* (SystemV R4.2) - CPU: R4000, R4400, R10000 (MIPS) - -2. Compiler - - 32bit: - Use ANSI C compiler. - CC = /usr/abiccs/bin/cc - - 64bit: - Use 64bit ANSI C compiler. - CC = /usr/ccs64/bin/cc - AR = /usr/ccs64/bin/ar - -3. ELF file format - *** Caution: The following infomation is empirical. *** - - 32bit: - ELF file has an unique format. (See a.out(4) and end(3C).) - - &_start - : text segment - &etext - DATASTART - : data segment (initialized) - &edata - DATASTART2 - : data segment (uninitialized) - &end - - Here, DATASTART and DATASTART2 are macros of GC, and are defined as - the following equations. (See include/private/gcconfig.h.) - The algorithm for DATASTART is similar with the function - GC_SysVGetDataStart() in os_dep.c. - - DATASTART = ((&etext + 0x3ffff) & ~0x3ffff) + (&etext & 0xffff) - - Dynamically linked: - DATASTART2 = (&_gp + 0x8000 + 0x3ffff) & ~0x3ffff - - Statically linked: - DATASTART2 = &edata - - GC has to check addresses both between DATASTART and &edata, and - between DATASTART2 and &end. If a program accesses between &etext - and DATASTART, or between &edata and DATASTART2, the segmentation - error occurs and the program stops. - - If a program is statically linked, there is not a gap between - &edata and DATASTART2. The global symbol &_DYNAMIC_LINKING is used - for the detection. - - 64bit: - ELF file has a simple format. (See end(3C).) - - _ftext - : text segment - _etext - _fdata = DATASTART - : data segment (initialized) - _edata - _fbss - : data segment (uninitialized) - _end = DATAEND - --- -Hironori SAKAMOTO <hsaka@mth.biglobe.ne.jp> - - -When using the new "configure; make" build process, please -run configure with the --disable-shared option. "Make check" does not -yet pass with dynamic libraries. Ther reasons for that are not yet -understood. (HB, paraphrasing message from Hironori SAKAMOTO.) - |