src/libmain/stack.cc: fix 'ucontext' usage on glibc-2.26
Build fails as:
$ make
CXX src/libmain/stack.o
src/libmain/stack.cc: In function 'void nix::sigsegvHandler(int, siginfo_t*, void*)':
src/libmain/stack.cc:21:21: error: 'ucontext' was not declared in this scope
sp = (char *) ((ucontext *) ctx)->uc_mcontext.gregs[REG_RSP];
^~~~~~~~
src/libmain/stack.cc:21:21: note: suggested alternative: 'ucontext_t'
sp = (char *) ((ucontext *) ctx)->uc_mcontext.gregs[REG_RSP];
^~~~~~~~
ucontext_t
It's caused by upstream rename:
https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=251287734e89a52da3db682a8241eb6bccc050c9
which basically changes
typedef struct ucontext {} ucontext_t;
to
typedef struct ucontext_t {} ucontext_t;
The change uses ucontext_t.
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
(cherry picked from commit c9857ef262
)
This commit is contained in:
parent
b3a616e860
commit
41352d50db
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@ -20,9 +20,9 @@ static void sigsegvHandler(int signo, siginfo_t * info, void * ctx)
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bool haveSP = true;
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char * sp = 0;
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#if defined(__x86_64__) && defined(REG_RSP)
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sp = (char *) ((ucontext *) ctx)->uc_mcontext.gregs[REG_RSP];
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sp = (char *) ((ucontext_t *) ctx)->uc_mcontext.gregs[REG_RSP];
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#elif defined(REG_ESP)
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sp = (char *) ((ucontext *) ctx)->uc_mcontext.gregs[REG_ESP];
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sp = (char *) ((ucontext_t *) ctx)->uc_mcontext.gregs[REG_ESP];
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#else
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haveSP = false;
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#endif
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