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authorBjörn Gustavsson <[email protected]>2010-03-16 15:54:35 +0100
committerBjörn Gustavsson <[email protected]>2010-03-22 18:20:12 +0100
commitbba60738a4de2528a361d815895191e8e0efd529 (patch)
treed3cfc8efcc1da8f707a3513f6aa1d4d6100b305a /erts/emulator/beam
parent2dc5a17b550e37b41410ad09ee636d877ca1f106 (diff)
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erts: Don't support the put_string/3 instruction
Since R14 does not need to load code that can also be loaded in an R11 run-time system, support for the put_string/3 instruction can be removed.
Diffstat (limited to 'erts/emulator/beam')
-rw-r--r--erts/emulator/beam/beam_emu.c14
-rw-r--r--erts/emulator/beam/beam_load.c46
-rw-r--r--erts/emulator/beam/ops.tab7
3 files changed, 0 insertions, 67 deletions
diff --git a/erts/emulator/beam/beam_emu.c b/erts/emulator/beam/beam_emu.c
index 834cc8df61..6de423ecf8 100644
--- a/erts/emulator/beam/beam_emu.c
+++ b/erts/emulator/beam/beam_emu.c
@@ -1414,20 +1414,6 @@ void process_main(void)
NextPF(2, next);
}
- OpCase(put_string_IId):
- {
- unsigned char* s;
- int len;
- Eterm result;
-
- len = Arg(0); /* Length. */
- result = NIL;
- for (s = (unsigned char *) Arg(1); len > 0; s--, len--) {
- PutList(make_small(*s), result, result, StoreSimpleDest);
- }
- StoreBifResult(2, result);
- }
-
/*
* Send is almost a standard call-BIF with two arguments, except for:
* 1) It cannot be traced.
diff --git a/erts/emulator/beam/beam_load.c b/erts/emulator/beam/beam_load.c
index bbfeac5397..5e4375fc96 100644
--- a/erts/emulator/beam/beam_load.c
+++ b/erts/emulator/beam/beam_load.c
@@ -277,7 +277,6 @@ typedef struct {
BeamInstr* code; /* Loaded code. */
int ci; /* Current index into loaded code. */
Label* labels;
- BeamInstr put_strings; /* Linked list of put_string instructions. */
BeamInstr new_bs_put_strings; /* Linked list of i_new_bs_put_string instructions. */
StringPatch* string_patches; /* Linked list of position into string table to patch. */
BeamInstr catches; /* Linked list of catch_yf instructions. */
@@ -1388,7 +1387,6 @@ read_code_header(LoaderState* stp)
stp->code[MI_COMPILE_SIZE_ON_HEAP] = 0;
stp->code[MI_NUM_BREAKPOINTS] = 0;
- stp->put_strings = 0;
stp->new_bs_put_strings = 0;
stp->catches = 0;
return 1;
@@ -2130,34 +2128,6 @@ load_code(LoaderState* stp)
/* Remember offset for the on_load function. */
stp->on_load = ci;
break;
- case op_put_string_IId:
- {
- /*
- * At entry:
- *
- * code[ci-4] &&lb_put_string_IId
- * code[ci-3] length of string
- * code[ci-2] offset into string table
- * code[ci-1] destination register
- *
- * Since we don't know the address of the string table yet,
- * just check the offset and length for validity, and use
- * the instruction field as a link field to link all put_string
- * instructions into a single linked list. At exit:
- *
- * code[ci-4] pointer to next put_string instruction (or 0
- * if this is the last)
- */
- Uint offset = code[ci-2];
- Uint len = code[ci-3];
- unsigned strtab_size = stp->chunks[STR_CHUNK].size;
- if (offset > strtab_size || offset + len > strtab_size) {
- LoadError2(stp, "invalid string reference %d, size %d", offset, len);
- }
- code[ci-4] = stp->put_strings;
- stp->put_strings = ci - 4;
- }
- break;
case op_bs_put_string_II:
{
/*
@@ -3593,22 +3563,6 @@ freeze_code(LoaderState* stp)
}
CHKBLK(ERTS_ALC_T_CODE,code);
-
- /*
- * Go through all put_strings instructions, restore the pointer to
- * the instruction and convert string offsets to pointers (to the
- * LAST character).
- */
-
- index = stp->put_strings;
- while (index != 0) {
- Uint next = code[index];
- code[index] = BeamOpCode(op_put_string_IId);
- code[index+2] = (BeamInstr) (str_table + code[index+2] + code[index+1] - 1);
- index = next;
- }
- CHKBLK(ERTS_ALC_T_CODE,code);
-
/*
* Go through all i_new_bs_put_strings instructions, restore the pointer to
* the instruction and convert string offsets to pointers (to the
diff --git a/erts/emulator/beam/ops.tab b/erts/emulator/beam/ops.tab
index ce1df74f03..264cfd06e4 100644
--- a/erts/emulator/beam/ops.tab
+++ b/erts/emulator/beam/ops.tab
@@ -66,7 +66,6 @@ func_info M=a a==am_module_info A=u==1 | label L | move n r => too_old_compiler
bif1 Fail u$func:erlang:is_constant/1 Src Dst => too_old_compiler
-
#
# All the other instructions.
#
@@ -115,12 +114,6 @@ init Y1 | init Y2 => init2 Y1 Y2
%macro: init2 Init2 -pack
%macro: init3 Init3 -pack
-#
-# Warning: The put_string instruction is specially treated in the loader.
-# Don't change the instruction format unless you change the loader too.
-#
-put_string I I d
-
# Selecting values
select_val S=q Fail=f Size=u Rest=* => const_select_val(S, Fail, Size, Rest)