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linux: Add a second CaptureContext symbol name

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glibc 2.26 defines ucontext_t from a struct ucontext_t while Bionic
and older versions of glibc use a struct ucontext.

Bug: crashpad:30
Change-Id: I473c317dbdbbedfad601c7594cfa7df7f7c01cb9
Reviewed-on: https://chromium-review.googlesource.com/972613
Reviewed-by: Mark Mentovai <mark@chromium.org>
This commit is contained in:
Joshua Peraza 2018-03-21 11:34:07 -07:00
parent afd3186280
commit 6d4626090d
1 changed files with 9 additions and 1 deletions
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10
util/misc/capture_context_linux.S
View File

@ -15,10 +15,17 @@
// namespace crashpad { // namespace crashpad {
// void CaptureContext(ucontext_t* context); // void CaptureContext(ucontext_t* context);
// } // namespace crashpad // } // namespace crashpad
#define CAPTURECONTEXT_SYMBOL _ZN8crashpad14CaptureContextEP8ucontext
// The type name for a ucontext_t varies by libc implementation and version.
// Bionic and glibc 2.25 typedef ucontext_t from struct ucontext. glibc 2.26+
// typedef ucontext_t from struct ucontext_t. Alias the symbol names to maintain
// compatibility with both possibilities.
#define CAPTURECONTEXT_SYMBOL _ZN8crashpad14CaptureContextEP10ucontext_t
#define CAPTURECONTEXT_SYMBOL2 _ZN8crashpad14CaptureContextEP8ucontext
.text .text
.globl CAPTURECONTEXT_SYMBOL .globl CAPTURECONTEXT_SYMBOL
.globl CAPTURECONTEXT_SYMBOL2
#if defined(__i386__) || defined(__x86_64__) #if defined(__i386__) || defined(__x86_64__)
.balign 16, 0x90 .balign 16, 0x90
#elif defined(__arm__) || defined(__aarch64__) #elif defined(__arm__) || defined(__aarch64__)
@ -26,6 +33,7 @@
#endif #endif
CAPTURECONTEXT_SYMBOL: CAPTURECONTEXT_SYMBOL:
CAPTURECONTEXT_SYMBOL2:
#if defined(__i386__) #if defined(__i386__)