Bug 104189
| Summary: | Problem with -fstack-limit-symbol | ||
|---|---|---|---|
| Product: | [Retired] Red Hat Linux | Reporter: | Sanjay Gupta <sgupta> |
| Component: | gcc | Assignee: | Jakub Jelinek <jakub> |
| Status: | CLOSED RAWHIDE | QA Contact: | Brian Brock <bbrock> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 8.0 | ||
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | 3.2.3-20 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2003-09-17 22:24:28 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
The problem is that for -fstack-limit-{register,symbol} ggc_strdup is used
before GGC is initialized (and stringpool as well).
In GCC 3.3 and later, GGC/stringpool are initialized much earlier, so this is not a problem.
But note that you're using the option incorrectly, see info gcc. You need to
give it a symbol name, not an integer constant. It may work by luck on some arches,
but certainly will not work on other arches.
2003-09-11 Jakub Jelinek <jakub>
* toplev.c (stack_limit_reg, stack_limit_symbol): New.
(decode_f_option): Don't set stack_limit_rtx here, set
stack_limit_{reg,symbol} instead.
(lang_independent_init): Set stack_limit_rtx here.
--- gcc/toplev.c.jj 2003-07-29 10:27:56.000000000 -0400
+++ gcc/toplev.c 2003-09-11 12:14:09.000000000 -0400
@@ -831,6 +831,9 @@ int flag_stack_check;
the support provided depends on the backend. */
rtx stack_limit_rtx;
+int stack_limit_reg = -1;
+const char *stack_limit_symbol;
+
/* 0 if pointer arguments may alias each other. True in C.
1 if pointer arguments may not alias each other but may alias
global variables.
@@ -3977,14 +3980,13 @@ decode_f_option (arg)
if (reg < 0)
error ("unrecognized register name `%s'", option_value);
else
- stack_limit_rtx = gen_rtx_REG (Pmode, reg);
+ stack_limit_reg = reg;
}
else if ((option_value
= skip_leading_substring (arg, "stack-limit-symbol=")))
{
- const char *nm;
- nm = ggc_strdup (option_value);
- stack_limit_rtx = gen_rtx_SYMBOL_REF (Pmode, nm);
+ stack_limit_symbol = xstrdup (option_value);
+ stack_limit_reg = -2;
}
else if ((option_value
= skip_leading_substring (arg, "message-length=")))
@@ -4003,7 +4005,7 @@ decode_f_option (arg)
error ("unrecognized option `%s'", arg - 2);
}
else if (!strcmp (arg, "no-stack-limit"))
- stack_limit_rtx = NULL_RTX;
+ stack_limit_reg = -1;
else if (!strcmp (arg, "preprocessed"))
/* Recognise this switch but do nothing. This prevents warnings
about an unrecognized switch if cpplib has not been linked in. */
@@ -5118,6 +5120,14 @@ lang_independent_init ()
init_stringpool ();
init_obstacks ();
+ if (stack_limit_reg == -2)
+ {
+ const char *nm = ggc_strdup (stack_limit_symbol);
+ stack_limit_rtx = gen_rtx_SYMBOL_REF (Pmode, nm);
+ }
+ else if (stack_limit_reg >= 0)
+ stack_limit_rtx = gen_rtx_REG (Pmode, stack_limit_reg);
+
/* init_emit_once uses reg_raw_mode and therefore must be called
after init_regs which initialized reg_raw_mode. */
init_regs ();
|
Description of problem: cc1plus: internal error: Segmentation fault Version-Release number of selected component (if applicable): Reading specs from /usr/lib/gcc-lib/i386-redhat-linux/3.2/specs Configured with: ../configure --prefix=/usr --mandir=/usr/share/man -- infodir=/usr/share/info --enable-shared --enable-threads=posix --disable- checking --host=i386-redhat-linux --with-system-zlib --enable-__cxa_atexit Thread model: posix gcc version 3.2 20020903 (Red Hat Linux 8.0 3.2-7) How reproducible: Every time Steps to Reproduce: 1.Just gmake -f makefile.unix 2. 3. Actual results: [sgupta@colorado SignalTest3]$ ./gm g++ -g -Wall -fstack-limit-symbol=0x7ffe0000 - I /home/sgupta/gs12/devroot/myneton/../buildroot/dist/include - I /home/sgupta/gs12/devroot/myneton/../buildroot/dist/idl - I /home/sgupta/gs12/devroot/myneton/../buildroot/dist/include_part2 - I /home/sgupta/gs12/devroot/myneton/srcroot/modules/HA/Tools/PltLib - DSSRC_BASED_SWITCH_ON_CLIENT -DMNDEBUG -DMN_LOG_SRTP -DDEBUG -DOS=Linux - DSTAT_MGR_SUPPORT_WRTP -c SignalTest3.cpp - o /home/sgupta/MyExamples/signals/SignalTest3/SignalTest3.o cc1plus: internal error: Segmentation fault Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://bugzilla.redhat.com/bugzilla/> for instructions. gmake: *** [/home/sgupta/MyExamples/signals/SignalTest3/SignalTest3.o] Error 1 Expected results: Should compile Additional info: